US20070209802A1 - Downhole trigger device - Google Patents
Downhole trigger device Download PDFInfo
- Publication number
- US20070209802A1 US20070209802A1 US11/369,501 US36950106A US2007209802A1 US 20070209802 A1 US20070209802 A1 US 20070209802A1 US 36950106 A US36950106 A US 36950106A US 2007209802 A1 US2007209802 A1 US 2007209802A1
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- US
- United States
- Prior art keywords
- piston
- wire
- restraining member
- tool
- response
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000000463 material Substances 0.000 claims abstract description 22
- 239000002360 explosive Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 16
- 230000000452 restraining effect Effects 0.000 claims description 16
- 230000004044 response Effects 0.000 claims description 10
- 230000002706 hydrostatic effect Effects 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 239000000289 melt material Substances 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 6
- 230000001010 compromised effect Effects 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000000717 retained effect Effects 0.000 description 4
- 230000000977 initiatory effect Effects 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- 229920000271 Kevlar® Polymers 0.000 description 1
- 229910001252 Pd alloy Inorganic materials 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- WQGWDDDVZFFDIG-UHFFFAOYSA-N pyrogallol Chemical compound OC1=CC=CC(O)=C1O WQGWDDDVZFFDIG-UHFFFAOYSA-N 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
- E21B23/04—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells operated by fluid means, e.g. actuated by explosion
- E21B23/042—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells operated by fluid means, e.g. actuated by explosion using a single piston or multiple mechanically interconnected pistons
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
- E21B23/04—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells operated by fluid means, e.g. actuated by explosion
- E21B23/0414—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells operated by fluid means, e.g. actuated by explosion using explosives
Definitions
- the field of this invention is trigger devices that are actuated downhole to operate a tool and more particularly triggers that are held immobilized until properly positioned and then released preferably with a spark, however initiated.
- the problem is that to generate enough heat downhole to burn the fibers and not damage adjacent components proves to be challenging for several reasons.
- One issue is the physical size of the battery pack to get a heater hot enough for long enough to compromise the fibers.
- Another issue is the very high temperatures needed to undermine the fibers and the effect on the overall design of the tool from having to keep heat sensitive components away from the heated area.
- Another design featured a battery operated heater coil in a downhole tool to release the trigger by applying heat and melting a plug to start the setting sequence.
- This design is reflected in U.S. Pat. No. 6,382,234.
- the battery size to have the required electrical capacity to create enough heat to melt the fusible plug presents a very real space concern in a downhole tool where space for a large power supply is at a premium.
- the cost and the reliability of a large battery pack is an issue.
- safety is another issue since some batteries need special shipping and handling requirements.
- U.S. Pat. No. 5,558,153 also suggests using solder wire that melts at relatively low temperatures to be the trigger material or using the stored power in the battery to advance a knife to physically cut the fiber as opposed to undermining it with a battery operated heat source.
- the present invention seeks to address the issues described above with the prior designs.
- One way it approached the problem is to choose a material that will readily go away by being combustible.
- the power then required to release the trigger is greatly reduced since it takes significantly less energy to create a spark that will create a burning of the trigger retainer to result in a release of the tool.
- What is proposed in one embodiment is the use of fuse material that is designed to be readily ignited. While no explosives need be set off, the fuse material that serves to hold the trigger against the setting of the tool simply readily ignites with a brief spark and burns to the point where it releases its hold on the setting mechanism and the tool simply sets.
- the wire burns and removes a barrier to flow that in turn set the tool.
- a trigger device keeps a downhole tool from setting until it is properly positioned. Regardless of the type of tool or the type of associated trigger, the retainer is combusted which results in setting the tool. This can happen by freeing a piston to move, or allowing flow through a port or by other mechanisms.
- the material is preferably one that combusts readily such as a material used in fuses for explosives. The battery requirements are to simply create the brief spark that starts the combustion, making the battery size significantly smaller than what would be needed to power a heater to melt materials that were used in the past.
- FIG. 1 shows one type of trigger using opposed sleeves held together by wire
- FIG. 2 is the rotated view of FIG. 1 showing the wire
- FIG. 3 is an alternative embodiment of a trigger that uses a piston retained by a wire going through it;
- FIG. 4 shows an alternative embodiment to hold a piston with the wire until the tool is ready to be actuated when the wire is compromised and the piston moves;
- FIG. 5 shows another embodiment where an opening in a plug is created that sets the tool with the flow through the opening where the opening is created by compromising the wire.
- FIG. 6 is another embodiment showing a piston held by a shearing member with chambers on opposed sides so that when the material in the opening is compromised well hydrostatic reaches one side of the piston to break the shear device and move the piston against the opposite chamber to set the tool.
- FIGS. 1 and 2 one type of retainer for a trigger mechanism or device for a downhole tool is illustrated. It shows a piston 10 that has some applied force 12 acting on it that would otherwise make it move but for a restraint.
- the restraint is a pair of sleeves 14 and 16 that are longitudinally split and held together by a spring or split ring 18 , for example.
- a wire 20 What completes the assembly to keep the piston 10 immovable despite the applied force 12 is a wire 20 shown in FIG. 2 .
- the term “wire” refers to the shape as being elongate without limitation to composition or cross-sectional shape or area and without limitation to any specific function such as conducting power.
- the force 12 can come from a variety of sources such as hydrostatic pressure, various springs or other energy storage devices or equivalents.
- movement of the piston 10 sets an associated tool that is not shown. While a piston is shown, any type of trigger for the downhole tool is envisioned regardless of shape or the nature of its movement or whether the movement directly or indirectly sets the underlying tool.
- the design of FIGS. 1 and 2 contemplates variations such as retaining the piston 10 with a c-ring whose open end is held fast against the piston 10 to keep it from moving by the wire 20 . When the wire or ignitable material 20 is compromised the c-ring is pushed apart by the force 12 and the piston 10 advances to set the tool.
- the wire 20 is such that initial energy input to it, preferably in the form of a brief spark that can be actuated electrically, mechanically or by other equivalent methods, sets in motion an event that continues without need for further energy input. Because of this feature, the battery or other energy source 22 and the ultimate recipient of the energy or power that creates a spark 24 collectively can be significantly smaller than prior designs that required continuous power input to disable the wire 20 .
- Mechanical spark devices that employ relative movement to create a spark can also be used as well as other devices that will transmit the initial burst of energy necessary to disable the wire 20 .
- the wire 20 can be made from PYRO FUZE® which consists of two metallic elements in intimate contact with each other.
- the PYROFUZE® reaction is not of an explosive or pyrotechnic nature. The only energy released is thermal (approximate minimum reaction temperature 2800° C./5000° F., 325 calories per gram, 2890 calories per cubic centimeter). The minimum initiation temperature is 650° C./1200° F.
- FIG. 3 shows another way to run a wire 20 through a piston 10 to hold it against a force 12 .
- the wire 20 passes through the piston 10 while being held near opposite ends by anchors 26 and 28 .
- FIG. 4 illustrates a piston 40 held in a body 42 by use of the restraining material 44 and optionally further retained by an adhesive such as epoxy 46 .
- an adhesive such as epoxy 46 .
- the tool (not shown) can be set from movement of the piston 40 or alternatively from fluid flow around it where the material 44 and adhesive 46 used to be. This can occur with or without piston movement.
- FIG. 5 does not use any piston. Instead a body 48 has an aperture 50 that is initially plugged by the ignitable material 52 optionally secured in a sealing manned with an adhesive 54 . Upon ignition of material 52 such as from a spark, however generated, the assembly that blocks the aperture 50 , and in so doing restrains an actuating member from operating, no longer resists differential pressure and flow through aperture 50 results in actuating the member that sets the tool.
- FIG. 6 illustrates a piston 60 held by a shear device 62 .
- Piston 60 separates atmospheric or low pressure chamber 64 from chamber 66 .
- Chamber 66 is also initially at atmospheric or low pressure that is well below the surrounding hydrostatic pressure at the anticipated depth for setting the tool.
- Plug 68 is in place in port 70 of chamber 66 to restrain the piston 60 stationary with the aid of shear device 62 which is optional if piston 60 is in pressure balance from chambers 64 and 66 .
- Plug 68 is made from a material that will be compromised with a brief spark and will continue to be compromised without additional energy input. This opens port 70 and puts a sufficient differential pressure on the piston 60 to break the shear device 62 and set the tool, not shown. In this example, well hydrostatic is used to move the piston after the spark.
- a pressurized chamber can be isolated from one side of the piston by a plug as illustrated in FIG. 5 .
- a plug disappears the pressurized chamber, that is higher than hydrostatic is allowed to cat on one side of the piston when the opposite side of that piston is exposed to well hydrostatic. As a result the piston moves and the tool sets.
- the heat given off from the spark igniting the material that continues to combust can also be harnessed to trigger the tool to set.
- the heat given off can cut a cord or compromise the actual retaining device to allow the tool to set.
- retaining member has been illustrated in the preferred embodiment to be a wire, other shapes are contemplated as it is the mechanism of what happens after initial energy input that sets the present invention apart and a variety of shapes for the retaining member are contemplated to be within the scope of the invention apart from a wire shape.
Abstract
A trigger device keeps a downhole tool from setting until it is properly positioned. Regardless of the type of tool or the type of associated trigger, the retainer of the present invention is combusted. The material is preferably one that combusts readily such as a material used in fuses for explosives. The battery requirements are to simply create the brief spark that starts the combustion, making the battery size significantly smaller than what would be needed to power a heater to melt materials that were used in the past.
Description
- The field of this invention is trigger devices that are actuated downhole to operate a tool and more particularly triggers that are held immobilized until properly positioned and then released preferably with a spark, however initiated.
- Space is always a concern in downhole tool design. Some tools need to be retained in an unset position until properly placed in the well. It is only when they are properly located that it is desired to set the tool. Such tools in the past have had trigger mechanisms that are retained in an immovable position for run in until proper placement of the associated downhole tool is achieved. One technique for holding things immobile until the tool is properly placed has involved disabling the trigger with a mechanical device that is held against movement by a Kevlar® high strength fiber and an associated electrically powered heat source generally powered by stored batteries in the downhole tool. The generation of sufficient heat burns the fibers and releases the trigger so that the tool can set. Such a system is described in U.S. Pat. No. 5,558,153. The problem is that to generate enough heat downhole to burn the fibers and not damage adjacent components proves to be challenging for several reasons. One issue is the physical size of the battery pack to get a heater hot enough for long enough to compromise the fibers. Another issue is the very high temperatures needed to undermine the fibers and the effect on the overall design of the tool from having to keep heat sensitive components away from the heated area.
- Another design featured a battery operated heater coil in a downhole tool to release the trigger by applying heat and melting a plug to start the setting sequence. This design is reflected in U.S. Pat. No. 6,382,234. Here again the same problems described above are encountered. The battery size to have the required electrical capacity to create enough heat to melt the fusible plug presents a very real space concern in a downhole tool where space for a large power supply is at a premium. The cost and the reliability of a large battery pack is an issue. On many occasions, safety is another issue since some batteries need special shipping and handling requirements.
- Other alternatives still involved the large battery pack to accomplish a release of the trigger. For example, U.S. Pat. No. 5,558,153 also suggests using solder wire that melts at relatively low temperatures to be the trigger material or using the stored power in the battery to advance a knife to physically cut the fiber as opposed to undermining it with a battery operated heat source.
- The present invention seeks to address the issues described above with the prior designs. One way it approached the problem is to choose a material that will readily go away by being combustible. The power then required to release the trigger is greatly reduced since it takes significantly less energy to create a spark that will create a burning of the trigger retainer to result in a release of the tool. What is proposed in one embodiment is the use of fuse material that is designed to be readily ignited. While no explosives need be set off, the fuse material that serves to hold the trigger against the setting of the tool simply readily ignites with a brief spark and burns to the point where it releases its hold on the setting mechanism and the tool simply sets. In another embodiment the wire burns and removes a barrier to flow that in turn set the tool. These and other advantages of the present invention will become more apparent to those skilled in the art from a review of the preferred embodiment that is described below along with the associated drawings while recognizing that the claims further below indicate the scope of the invention.
- A trigger device keeps a downhole tool from setting until it is properly positioned. Regardless of the type of tool or the type of associated trigger, the retainer is combusted which results in setting the tool. This can happen by freeing a piston to move, or allowing flow through a port or by other mechanisms. The material is preferably one that combusts readily such as a material used in fuses for explosives. The battery requirements are to simply create the brief spark that starts the combustion, making the battery size significantly smaller than what would be needed to power a heater to melt materials that were used in the past.
-
FIG. 1 shows one type of trigger using opposed sleeves held together by wire; -
FIG. 2 is the rotated view ofFIG. 1 showing the wire; -
FIG. 3 is an alternative embodiment of a trigger that uses a piston retained by a wire going through it; -
FIG. 4 shows an alternative embodiment to hold a piston with the wire until the tool is ready to be actuated when the wire is compromised and the piston moves; -
FIG. 5 shows another embodiment where an opening in a plug is created that sets the tool with the flow through the opening where the opening is created by compromising the wire. -
FIG. 6 is another embodiment showing a piston held by a shearing member with chambers on opposed sides so that when the material in the opening is compromised well hydrostatic reaches one side of the piston to break the shear device and move the piston against the opposite chamber to set the tool. - Referring to
FIGS. 1 and 2 , one type of retainer for a trigger mechanism or device for a downhole tool is illustrated. It shows apiston 10 that has some appliedforce 12 acting on it that would otherwise make it move but for a restraint. In this case the restraint is a pair ofsleeves ring 18, for example. What completes the assembly to keep thepiston 10 immovable despite the appliedforce 12 is awire 20 shown inFIG. 2 . In this application, the term “wire” refers to the shape as being elongate without limitation to composition or cross-sectional shape or area and without limitation to any specific function such as conducting power. Theforce 12 can come from a variety of sources such as hydrostatic pressure, various springs or other energy storage devices or equivalents. In general, movement of thepiston 10 sets an associated tool that is not shown. While a piston is shown, any type of trigger for the downhole tool is envisioned regardless of shape or the nature of its movement or whether the movement directly or indirectly sets the underlying tool. The design ofFIGS. 1 and 2 contemplates variations such as retaining thepiston 10 with a c-ring whose open end is held fast against thepiston 10 to keep it from moving by thewire 20. When the wire orignitable material 20 is compromised the c-ring is pushed apart by theforce 12 and thepiston 10 advances to set the tool. - The
wire 20 is such that initial energy input to it, preferably in the form of a brief spark that can be actuated electrically, mechanically or by other equivalent methods, sets in motion an event that continues without need for further energy input. Because of this feature, the battery or other energy source 22 and the ultimate recipient of the energy or power that creates aspark 24 collectively can be significantly smaller than prior designs that required continuous power input to disable thewire 20. Mechanical spark devices that employ relative movement to create a spark can also be used as well as other devices that will transmit the initial burst of energy necessary to disable thewire 20. For example thewire 20 can be made from PYRO FUZE® which consists of two metallic elements in intimate contact with each other. When these two elements are brought to the initiating temperature, they alloy rapidly resulting in instant deflagration without support of oxygen. Initiation is by heat and heat alone. All that is required is the exposure of the composite to the proper minimum temperature. The trigger reaction will reach temperatures in excess of the boiling point of the constituents. Once started, the reaction will not stop until alloying is completed or the unalloyed composite is subjected to some form of massive cooling that overwhelms the composite so that it cannot reach minimum operating temperature. The reaction end products consist normally of tiny discreet particles of the alloy of the participating materials. The present PYROFUZE composition was chosen for a number of desirable characteristics; it is a composite of alloys of Palladium and Aluminum. It is available in the following physical forms: Wire; and, Ribbon rolled from wire. - The PYROFUZE® reaction is not of an explosive or pyrotechnic nature. The only energy released is thermal (approximate minimum reaction temperature 2800° C./5000° F., 325 calories per gram, 2890 calories per cubic centimeter). The minimum initiation temperature is 650° C./1200° F.
- Wire:
Outer Jacket Inner Core Chemical composition: Balance Palladium #5056 Aluminum 5% Ruthenium Resistivity: 62 ohms per cmf - Other materials are contemplated that also have explosive materials incorporated into the wire or result in a pyrotechnic response with the distinguishing characteristic being that the initial energy input that leads to the weakening of the
wire 20 that ultimately lets the tool set continues after it is started without continuous energy input of the prior designs. Regardless of composition of the wire or the mechanism of the response to the energy input the defining difference is that the process continues without further energy input. Accordingly, fuses that are used to set explosives could function aswire 20. -
FIG. 3 shows another way to run awire 20 through apiston 10 to hold it against aforce 12. Here thewire 20 passes through thepiston 10 while being held near opposite ends byanchors -
FIG. 4 illustrates apiston 40 held in abody 42 by use of the restraining material 44 and optionally further retained by an adhesive such asepoxy 46. When the material 44 is ignited it burns to undermine itself and the surroundingadhesive 46. At that point the tool (not shown) can be set from movement of thepiston 40 or alternatively from fluid flow around it where the material 44 and adhesive 46 used to be. This can occur with or without piston movement. -
FIG. 5 does not use any piston. Instead abody 48 has anaperture 50 that is initially plugged by theignitable material 52 optionally secured in a sealing manned with an adhesive 54. Upon ignition ofmaterial 52 such as from a spark, however generated, the assembly that blocks theaperture 50, and in so doing restrains an actuating member from operating, no longer resists differential pressure and flow throughaperture 50 results in actuating the member that sets the tool. -
FIG. 6 illustrates a piston 60 held by ashear device 62. Piston 60 separates atmospheric orlow pressure chamber 64 from chamber 66. Chamber 66 is also initially at atmospheric or low pressure that is well below the surrounding hydrostatic pressure at the anticipated depth for setting the tool.Plug 68 is in place in port 70 of chamber 66 to restrain the piston 60 stationary with the aid ofshear device 62 which is optional if piston 60 is in pressure balance fromchambers 64 and 66.Plug 68 is made from a material that will be compromised with a brief spark and will continue to be compromised without additional energy input. This opens port 70 and puts a sufficient differential pressure on the piston 60 to break theshear device 62 and set the tool, not shown. In this example, well hydrostatic is used to move the piston after the spark. - In a different alternative a pressurized chamber can be isolated from one side of the piston by a plug as illustrated in
FIG. 5 . When that plug disappears the pressurized chamber, that is higher than hydrostatic is allowed to cat on one side of the piston when the opposite side of that piston is exposed to well hydrostatic. As a result the piston moves and the tool sets. - In yet other embodiments the heat given off from the spark igniting the material that continues to combust can also be harnessed to trigger the tool to set. In such embodiments the heat given off can cut a cord or compromise the actual retaining device to allow the tool to set.
- While the retaining member has been illustrated in the preferred embodiment to be a wire, other shapes are contemplated as it is the mechanism of what happens after initial energy input that sets the present invention apart and a variety of shapes for the retaining member are contemplated to be within the scope of the invention apart from a wire shape.
- While the preferred embodiment has been set forth above, those skilled in art will appreciate that the scope of the invention is significantly broader and as outlined in the claims which appear below.
Claims (29)
1. A trigger device for a downhole tool for selectively actuating the tool, comprising:
a body;
an actuating member mounted to said body whose movement sets the tool;
a restraining member to selectively directly or indirectly restrain movement of said actuating member with respect to said body, said restraining member when subjected to an initial energy input initiates a process within said restraining member that continues without further energy input to the point of allowing said actuating member to move.
2. The device of claim 1 , wherein:
said process releases heat.
3. The device of claim 1 , wherein:
said process comprises a chemical reaction.
4. The device of claim 1 , wherein:
the response of the restraining member to energy input is pyrotechnic.
5. The device of claim 1 , wherein:
said restraining member comprises an explosive material.
6. The device of claim 1 , wherein:
said energy input comprises a spark.
7. The device of claim 6 , wherein:
said spark is supplied by a battery supported by said housing.
8. The device of claim 6 , wherein:
said spark is generated mechanically.
9. The device of claim 1 , wherein:
said actuating member comprises a piston that is subjected to an initial force.
10. The device of claim 9 , wherein:
said restraining member comprises a wire that initially retains said piston.
11. The device of claim 10 , wherein:
said wire passes through said piston.
12. The device of claim 1 , wherein:
said restraining member comprises a wire fuse.
13. A method of selectively actuating a downhole tool, comprising:
retaining directly or indirectly a triggering member with a restraining member;
applying energy to the restraining member to initiate a response in said restraining member;
removing said applied energy while said response continues; and
defeating said restraining member to let the triggering member move.
14. The method of claim 13 , comprising:
releasing heat from said response.
15. The method of claim 13 , comprising:
creating a chemical reaction as said response.
16. The method of claim 13 , comprising:
using a wire fuse for said restraining member.
17. The method of claim 13 , comprising:
making said response a pyrotechnic one.
18. The method of claim 14 , comprising:
obtaining said response without the presence of oxygen.
19. The method of claim 13 , comprising:
creating a spark for said applying energy.
20. The method of claim 19 , comprising:
using a piston as said triggering member;
using a wire to retain said piston;
passing said wire around or through said piston; and
allowing said response to break said wire.
21. The device of claim 1 , wherein:
said restraining member opens a port as a result of being subjected to said energy input.
22. The device of claim 21 , wherein:
said actuating member comprises a piston flanked by chambers; said restraining material is disposed initially in a port in one of said chambers such that application of said energy input opens said port to create a net force on said piston to set the tool.
23. The device of claim 22 , wherein:
said port, when opened admits hydrostatic well pressure to one of said chambers.
24. The device of claim 22 , wherein:
said body further comprises a pressurized chamber, said port, when opened allows pressure from said pressurized chamber to reach said piston via one of said chambers to set the tool.
25. The device of claim 24 , wherein:
the other of said chambers is exposed to well hydrostatic pressure.
26. The device of claim 2 , wherein:
said restraining member comprises a final element that is in contact with the actuating member and said heat compromises said final element to allow the actuating member to move.
27. The device of claim 26 , wherein:
said final element comprises a cord connected to the actuating member that fails from said heat.
28. The device of claim 10 , wherein:
said wire holds a plurality of sleeve segments together until said initial energy input starts a process that undermines said wire.
29. The device of claim 10 , wherein:
said wire holds a split ring together around said piston until said initial energy input starts a process that undermines said wire.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US11/369,501 US20070209802A1 (en) | 2006-03-07 | 2006-03-07 | Downhole trigger device |
PCT/US2007/062949 WO2007103680A1 (en) | 2006-03-07 | 2007-02-28 | Downhole trigger device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/369,501 US20070209802A1 (en) | 2006-03-07 | 2006-03-07 | Downhole trigger device |
Publications (1)
Publication Number | Publication Date |
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US20070209802A1 true US20070209802A1 (en) | 2007-09-13 |
Family
ID=38158087
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/369,501 Abandoned US20070209802A1 (en) | 2006-03-07 | 2006-03-07 | Downhole trigger device |
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US (1) | US20070209802A1 (en) |
WO (1) | WO2007103680A1 (en) |
Cited By (16)
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US20080000634A1 (en) * | 2006-06-30 | 2008-01-03 | Baker Hughes Incorporated | Downhole abrading tools having excessive wear indicator |
US20080000687A1 (en) * | 2006-06-30 | 2008-01-03 | Baker Hughes, Incorporated | Downhole abrading tools having fusible material and uses therefor |
US20080000690A1 (en) * | 2006-06-30 | 2008-01-03 | Baker Hughes Incorporated | Downhole abrading tool having taggants for indicating excessive wear |
US20080000633A1 (en) * | 2006-06-30 | 2008-01-03 | Baker Hughes, Incorporated | Downhole abrading tools having a hydrostatic chamber and uses therefor |
US20080000691A1 (en) * | 2006-06-30 | 2008-01-03 | Baker Hughes Incorporated | Downhole abrading tool having a taggant injection assembly for indicating excessive wear |
US9169697B2 (en) | 2012-03-27 | 2015-10-27 | Baker Hughes Incorporated | Identification emitters for determining mill life of a downhole tool and methods of using same |
US10167691B2 (en) | 2017-03-29 | 2019-01-01 | Baker Hughes, A Ge Company, Llc | Downhole tools having controlled disintegration |
US10221641B2 (en) | 2017-03-29 | 2019-03-05 | Baker Hughes, A Ge Company, Llc | Downhole tools having controlled degradation and method |
US10221642B2 (en) | 2017-03-29 | 2019-03-05 | Baker Hughes, A Ge Company, Llc | Downhole tools having controlled degradation and method |
US10221643B2 (en) | 2017-03-29 | 2019-03-05 | Baker Hughes, A Ge Company, Llc | Downhole tools having controlled degradation and method |
US10364630B2 (en) | 2016-12-20 | 2019-07-30 | Baker Hughes, A Ge Company, Llc | Downhole assembly including degradable-on-demand material and method to degrade downhole tool |
US10364632B2 (en) | 2016-12-20 | 2019-07-30 | Baker Hughes, A Ge Company, Llc | Downhole assembly including degradable-on-demand material and method to degrade downhole tool |
US10364631B2 (en) | 2016-12-20 | 2019-07-30 | Baker Hughes, A Ge Company, Llc | Downhole assembly including degradable-on-demand material and method to degrade downhole tool |
US10450840B2 (en) | 2016-12-20 | 2019-10-22 | Baker Hughes, A Ge Company, Llc | Multifunctional downhole tools |
US10865617B2 (en) | 2016-12-20 | 2020-12-15 | Baker Hughes, A Ge Company, Llc | One-way energy retention device, method and system |
US11015409B2 (en) | 2017-09-08 | 2021-05-25 | Baker Hughes, A Ge Company, Llc | System for degrading structure using mechanical impact and method |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8960314B2 (en) | 2012-03-27 | 2015-02-24 | Baker Hughes Incorporated | Shape memory seal assembly |
WO2020219435A1 (en) | 2019-04-24 | 2020-10-29 | Schlumberger Technology Corporation | System and methodology for actuating a downhole device |
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Cited By (21)
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US20080000634A1 (en) * | 2006-06-30 | 2008-01-03 | Baker Hughes Incorporated | Downhole abrading tools having excessive wear indicator |
US20080000687A1 (en) * | 2006-06-30 | 2008-01-03 | Baker Hughes, Incorporated | Downhole abrading tools having fusible material and uses therefor |
US20080000690A1 (en) * | 2006-06-30 | 2008-01-03 | Baker Hughes Incorporated | Downhole abrading tool having taggants for indicating excessive wear |
US20080000633A1 (en) * | 2006-06-30 | 2008-01-03 | Baker Hughes, Incorporated | Downhole abrading tools having a hydrostatic chamber and uses therefor |
US20080000691A1 (en) * | 2006-06-30 | 2008-01-03 | Baker Hughes Incorporated | Downhole abrading tool having a taggant injection assembly for indicating excessive wear |
US7404457B2 (en) | 2006-06-30 | 2008-07-29 | Baker Huges Incorporated | Downhole abrading tools having fusible material and methods of detecting tool wear |
US7424910B2 (en) | 2006-06-30 | 2008-09-16 | Baker Hughes Incorporated | Downhole abrading tools having a hydrostatic chamber and uses therefor |
US7464771B2 (en) | 2006-06-30 | 2008-12-16 | Baker Hughes Incorporated | Downhole abrading tool having taggants for indicating excessive wear |
US7484571B2 (en) | 2006-06-30 | 2009-02-03 | Baker Hughes Incorporated | Downhole abrading tools having excessive wear indicator |
US7565928B2 (en) | 2006-06-30 | 2009-07-28 | Baker Hughes Incorporated | Downhole abrading tool having a taggant injection assembly for indicating excessive wear |
US9169697B2 (en) | 2012-03-27 | 2015-10-27 | Baker Hughes Incorporated | Identification emitters for determining mill life of a downhole tool and methods of using same |
US10364630B2 (en) | 2016-12-20 | 2019-07-30 | Baker Hughes, A Ge Company, Llc | Downhole assembly including degradable-on-demand material and method to degrade downhole tool |
US10364632B2 (en) | 2016-12-20 | 2019-07-30 | Baker Hughes, A Ge Company, Llc | Downhole assembly including degradable-on-demand material and method to degrade downhole tool |
US10364631B2 (en) | 2016-12-20 | 2019-07-30 | Baker Hughes, A Ge Company, Llc | Downhole assembly including degradable-on-demand material and method to degrade downhole tool |
US10450840B2 (en) | 2016-12-20 | 2019-10-22 | Baker Hughes, A Ge Company, Llc | Multifunctional downhole tools |
US10865617B2 (en) | 2016-12-20 | 2020-12-15 | Baker Hughes, A Ge Company, Llc | One-way energy retention device, method and system |
US10167691B2 (en) | 2017-03-29 | 2019-01-01 | Baker Hughes, A Ge Company, Llc | Downhole tools having controlled disintegration |
US10221641B2 (en) | 2017-03-29 | 2019-03-05 | Baker Hughes, A Ge Company, Llc | Downhole tools having controlled degradation and method |
US10221642B2 (en) | 2017-03-29 | 2019-03-05 | Baker Hughes, A Ge Company, Llc | Downhole tools having controlled degradation and method |
US10221643B2 (en) | 2017-03-29 | 2019-03-05 | Baker Hughes, A Ge Company, Llc | Downhole tools having controlled degradation and method |
US11015409B2 (en) | 2017-09-08 | 2021-05-25 | Baker Hughes, A Ge Company, Llc | System for degrading structure using mechanical impact and method |
Also Published As
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Owner name: BAKER HUGHES INCORPORATED, TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:XU, YANG;ROSENBLATT, STEVE;REEL/FRAME:017545/0057;SIGNING DATES FROM 20060418 TO 20060425 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |