WO1998009055A1 - Electrical/hydraulic controller for downhole tools - Google Patents
Electrical/hydraulic controller for downhole tools Download PDFInfo
- Publication number
- WO1998009055A1 WO1998009055A1 PCT/US1997/015445 US9715445W WO9809055A1 WO 1998009055 A1 WO1998009055 A1 WO 1998009055A1 US 9715445 W US9715445 W US 9715445W WO 9809055 A1 WO9809055 A1 WO 9809055A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- downhoie
- tools
- tool
- electrical
- line
- Prior art date
Links
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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/10—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
Definitions
- TITLE ELECTRICAL/HYDRAULIC CONTROLLER FOR DOWNHOLE TOOLS
- This invention relates generally to the delivery of electrical signals and hydraulic
- hydrocarbons oil and gas
- the wellbore which is typically between nine and twelve
- Branch or lateral wellbores often are drilled from a trunk or main
- a tool string containing multiple tools is formed at the surface and run in hole to perform a number of operations.
- a separate hydraulic line is connected to each tool before running in hole. The other end of
- each hydraulic line is connected to an isolation valve which in turn is connected to a
- each tool in the string can be operated independently of the other tools
- This invention provides an apparatus and a method for delivery of hydraulic
- controllers to allow the passage of hydraulic fluid/pressure to activate/deactivate the
- FIG. 1 shows a schematic diagram of a typical wellsite wherein a completion string
- FIG. 2A is a partial cross-sectional view of a downhoie controller of the present
- FIG. 2B shows the top view of the downhoie controller of the present invention.
- FIG. 2C is a cross-sectional view of FIG. 2A showing the hydraulic connection to
- FIG. 2D shows the bottom view of the downhoie controller of the present invention.
- FIG. 3 is an illustration of a typical downhoie tool string containing multiple tools
- FIG. 1 shows a schematic of a controller system 10, in operation at a typical wellsite
- Every hydraulically-operated tool needs a controller which can be either integral to
- FIGs. 1-3 depict the controllers as separate devices. As shown in FIG. 1, hydraulic fluid (not shown) from a supply source 24 is pumped
- the hydraulic line 28 and the electrical line 30 can be contained
- FIG. 2A shows a partial cross-sectional view of a downhoie tool controller 40, such
- the electrical line 30 enters the controller 40
- solenoid valve 48 is connected to the electronic circuit board 44 via an electrical line 50.
- the hydraulic line 28 enters the controller 40 through an hydraulic inlet port 52
- FIG. 2C the hydraulic line 28 then exits the controller 40 through a
- the electronics in the controller 20 direct the power from the electrical signal to
- the electrical signal continues through the electrical line 30 to the next controller 22,
- controller 22 goes through the same sequence of operations to determine if it should activate
- individual tool controllers 40 are connected in parallel to the hydraulic line 28 and the
- FIG. 3 illustrates a typical tool string 29 containing a first controller 60, a sliding
- controllers 40 such as mud pulse, electromagnetic pulse, acoustic pulse, electrical pulse and
- valve shown in FIG. 2A is a solenoid valve 48, which is well known in
Abstract
The present invention is a method and apparatus for selectively activating and deactivating multiple, hydraulically-driven downhole tools (12, 14) with a system containing a single electrical line (30) and a single hydraulic line (28) which are connected in parallel to individual controllers (20, 22) associated with each down hole tool.
Description
TITLE: ELECTRICAL/HYDRAULIC CONTROLLER FOR DOWNHOLE TOOLS
FIELD OF THE INVENTION
This invention relates generally to the delivery of electrical signals and hydraulic
pressure to downhoie tools and/or completion equipment and more particularly to the
selective operation of multiple downhoie tools by utilizing single electrical and hydraulic
lines.
BACKGROUND OF THE INVENTION
During the drilling, completion and production phases required to produce
hydrocarbons (oil and gas) from earth formations, several different downhoie tools and
completion equipment are used. The wellbore, which is typically between nine and twelve
inches in diameter, provides limited capacity for running electrical and hydraulic lines to
such downhoie tools. Branch or lateral wellbores often are drilled from a trunk or main
wellbore to form deviated and/or horizontal wellbores for improving production of
hydrocarbons from the subsurface formations.
It is expensive and time consuming to run a single tool downhoie, use it and then
retrieve it before pursuing other operations. In some operations, such as completions, the
tool cannot be retrieved. Therefore, a tool string containing multiple tools is formed at the
surface and run in hole to perform a number of operations. In conventional operations, a separate hydraulic line is connected to each tool before running in hole. The other end of
each hydraulic line is connected to an isolation valve which in turn is connected to a
hydraulic pump located at the surface. To operate a specific tool in the string, the isolation
valve that connects the specific hydraulic line to the hydraulic pump is opened. Pressure is
applied and the isolation valve is closed to trap the hydraulic pressure. Thus, during
downhoie operations, each tool in the string can be operated independently of the other tools
by utilizing such tool's independent hydraulic line.
Due to the small space available to run hydraulic lines downhoie, some operations run
more than one tool on the same hydraulic lines. The drawback of this system, however, is
that the tools are either all activated or all deactivated simultaneously. They are not
independently operable.
It is desirable to run multiple tools from a single hydraulic line but it would be
additionally advantageous if the multiple tools could be controlled independently of each
other.
The present invention addresses this deficiency of the prior art and provides a system
that delivers hydraulic pressure and electrical signals independently to multiple downhoie
tools utilizing a single hydraulic line and a single electrical line. The system is applicable to
hydrological (environmental ground water) testing as well as to hydrocarbon operations.
SUMMARY OF THE INVENTION
This invention provides an apparatus and a method for delivery of hydraulic
fluid/pressure and electrical signals to multiple downhoie tools via a single hydraulic line and
a single electrical line by connecting the lines in parallel to each of the downhoie tool
controllers and sending signals to the downhoie tool controllers for operating controls within
the controllers to allow the passage of hydraulic fluid/pressure to activate/deactivate the
associated tools.
BRIEF DESCRIPTION OF THE DRAWINGS
For a detailed understanding of the present invention, references should be made to
the following detailed description of the preferred embodiment, taken in conjunction with the
accompanying drawings, in which like elements have been given like numerals, and wherein:
FIG. 1 shows a schematic diagram of a typical wellsite wherein a completion string
utilizes the apparatus of the present invention to operate multiple downhoie tools from single hydraulic and electrical lines.
FIG. 2A is a partial cross-sectional view of a downhoie controller of the present
invention.
FIG. 2B shows the top view of the downhoie controller of the present invention.
FIG. 2C is a cross-sectional view of FIG. 2A showing the hydraulic connection to
the downhoie tool.
FIG. 2D shows the bottom view of the downhoie controller of the present invention.
FIG. 3 is an illustration of a typical downhoie tool string containing multiple tools
and incorporating the apparatus of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
FIG. 1 shows a schematic of a controller system 10, in operation at a typical wellsite,
for the delivery of hydraulic pressure to completion equipment or downhoie tools, such as a
packer 12 and a sliding sleeve 14, and for transmitting electrical signals between a control
unit 16, located on the surface 18, and controllers 20 and 22 associated with the packer 12
and the sliding sleeve 14, respectively.
Every hydraulically-operated tool needs a controller which can be either integral to
the tool or a separate device. For ease of understanding and without any intent to limit the
scope of the invention, FIGs. 1-3 depict the controllers as separate devices.
As shown in FIG. 1, hydraulic fluid (not shown) from a supply source 24 is pumped
by a hydraulic pump 26 through a single hydraulic line 28 downhoie to a completion or tool
string 29. Similarly, electrical signals are communicated between the control unit 16 and the
completion of tool string 29, which contains downhoie tool controllers 20 and 22, over a
single electrical line 30. The hydraulic line 28 and the electrical line 30 can be contained
within a single tube (not shown) or run downhoie as individual lines as shown in FIG. 1. A
typical configuration for completion operations, as shown in FIG. 1 , would run the lines 28
and 30 between an outer surface 32 of a completion string 29 and the inner surface of the
casing 34 and the wall 36 of the open hole 38. The placement of the lines 28 and 30 is meant
by way of example and is not meant to limit the scope of the invention.
FIG. 2A shows a partial cross-sectional view of a downhoie tool controller 40, such
as the controllers 20 and 22 shown in FIG. 1. The electrical line 30 enters the controller 40
through an electrical inlet port 42 and is connected in parallel to an electronic circuit board 44
before exiting the controller 40 through an electrical outlet port 46 (shown in FIG. 2D). A
solenoid valve 48 is connected to the electronic circuit board 44 via an electrical line 50.
The hydraulic line 28 enters the controller 40 through an hydraulic inlet port 52
(shown in FIG. 2B) and is connected in parallel through a hydraulic tool line 53 (shown in
FIG. 2C) to the downhoie tool, such as the packer 12 or the sliding sleeve 14 shown in FIG.
1. As shown in FIG. 2D, the hydraulic line 28 then exits the controller 40 through a
hydraulic outlet port 54 and the hydraulic tool line 53 exits the controller 40 through a
hydraulic tool outlet port 55.
.An electrical signal (not shown) is sent from the control unit 16, shown in FIG. 1,
down the electrical line 30 to the first controller 20 in the downhoie string 29. The
electronics (electronic circuit board 44 as shown in FIG. 2A) within the controller 20
determine if the signal is addressing the first controller 20. If the first controller 20 is being
addressed, the electronics in the controller 20 direct the power from the electrical signal to
move the solenoid valve 48 (FIG. 2A) to allow the hydraulic fluid/pressure in the hydraulic
line 28 to pass through the controller 20 to the first tool, the packer 12, which is associated
with the controller 20. The hydraulic pressure/fluid is then available to operate the connected
tool, the packer 12.
If the first controller 20 is not being addressed, then the solenoid valve 48 (FIG. 2A)
remains in its closed position and the associated tool, the packer 12, is not activated.
The electrical signal continues through the electrical line 30 to the next controller 22,
as shown in FIG. 1. Regardless of the action of the previous controller 20, the second
controller 22 goes through the same sequence of operations to determine if it should activate
the second tool, the sliding sleeve 14, by moving the solenoid valve 48 (FIG. 2A) in the
controller 22 to allow the hydraulic fluid/pressure to pass through the solenoid valve 48 to the
sliding sleeve 14.
In similar fashion, the electrical signal and the hydraulic fluid/pressure continue
downhoie to each of the controllers 40 in the completion or tool string 29. Because the
individual tool controllers 40 are connected in parallel to the hydraulic line 28 and the
electrical line 30, multiple tools/equipment in a tool/completion string 29 can be operated
selectively and individually.
FIG. 3 illustrates a typical tool string 29 containing a first controller 60, a sliding
sleeve 62, a second controller 64, a packer 66, a third controller 68 and a sliding sleeve/choke
70 which can all be selectively operated via a single hydraulic line 72 and a single electrical
line 74.
Various telemetry methods can be used to send commands to the downhoie tool
controllers 40 such as mud pulse, electromagnetic pulse, acoustic pulse, electrical pulse and
others. The electrical signal described in the preferred embodiment is meant by way of
example and is not meant to limit the scope of the invention.
Likewise, the valve shown in FIG. 2A is a solenoid valve 48, which is well known in
the industry, is meant by way of example without limiting the invention.
While the foregoing disclosure is directed to the preferred embodiments of the
invention, various modifications will be apparent to those skilled in the art. It is intended that all variations within the scope and spirit of the appended claims be embraced by the
foregoing disclosure.
Claims
1. A system for providing hydraulic fluid and electrical signals to multiple
hydraulically-driven downhoie tools deployed in a wellbore, comprising:
(a) a single hydraulic line for supplying hydraulic fluid to each of the downhoie tools;
(b) a single electrical line for supplying electrical power and signals to each of the
downhoie tools; and
A plurality of downhoie controllers, wherein the controllers are connected in parallel
to the single hydraulic line and to the single electrical line and wherein a separate controller
is connected to a separate downhoie tool.
2. The system of claim 1 , wherein each said controller further comprises:
(a) a valve operable in an open mode for allowing the flow of the hydraulic
fluid from the hydraulic line into the downhoie tool connected to the controller and in a
closed mode for blocking the flow of hydraulic fluid; and
(b) A circuit for transmitting a command signal from a remote control unit via
the electrical line to operate the valve between the desired open and closed modes to activate
and deactivate the tool, respectively.
3. The system of claim 2, further comprising a two-way communication system between the downhoie tools and the remote control unit for sending over the electrical line
control information to the downhoie tools and for receiving status information from the
downhoie tools.
4. A method for selectively activating a plurality of hydraulically-operated downhoie
tools via a single hydraulic line and a single electrical line, comprising: connecting the hydraulic line in parallel to each of the downhoie tools;
connecting the electrical line in parallel to each of the downhoie tools; sending an
activate command via an electrical signal through the electrical line, wherein the activate
command is received by each downhoie tool and decoded to determine whether the activate
command is for this downhoie tool; and
positioning the valve in the commanded position for the relevant downhoie tools,
wherein hydraulic fluid flows through the open valve thereby activating the downhoie tool.
5. The method of claim 4, further comprising initializing the valves in the downhoie
tools to known starting positions.
6. The method of claim 4, further comprising periodically sending a signal from the
downhoie tool indicating the position of the valve.
7. The method of claim 4, further comprising sending a deactivate command to individual downhoie tools, wherein the command is received and decoded by each downhoie
tool and valves are moved accordingly.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9806774A GB2321076A (en) | 1996-08-30 | 1997-09-02 | Electrical/hydraulic controller for downhole tools |
AU41771/97A AU4177197A (en) | 1996-08-30 | 1997-09-02 | Electrical/hydraulic controller for downhole tools |
NO981935A NO981935L (en) | 1996-08-30 | 1998-04-29 | Electric / hydraulic control unit for downhole tool. Y |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US2466896P | 1996-08-30 | 1996-08-30 | |
US60/024,668 | 1996-08-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998009055A1 true WO1998009055A1 (en) | 1998-03-05 |
Family
ID=21821776
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1997/015445 WO1998009055A1 (en) | 1996-08-30 | 1997-09-02 | Electrical/hydraulic controller for downhole tools |
Country Status (5)
Country | Link |
---|---|
AU (1) | AU4177197A (en) |
CA (1) | CA2233480A1 (en) |
GB (1) | GB2321076A (en) |
NO (1) | NO981935L (en) |
WO (1) | WO1998009055A1 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2332225A (en) * | 1997-12-12 | 1999-06-16 | Baker Hughes Inc | Control line actuation of multiple downhole tools |
WO1999047790A1 (en) * | 1998-03-13 | 1999-09-23 | Abb Offshore Systems Limited | Extraction of fluids from wells |
WO1999063234A2 (en) * | 1998-06-05 | 1999-12-09 | Bengt Gunnarsson | A device and method for regulating fluid flow in a well |
EP0999342A2 (en) * | 1998-11-02 | 2000-05-10 | Halliburton Energy Services, Inc. | Method and apparatus for controlling actuation of a tool within a subterranean wellbore |
WO2000029715A1 (en) * | 1998-11-18 | 2000-05-25 | Schlumberger Technology Corporation | Flow control and isolation in a wellbore |
EP1033470A2 (en) * | 1999-03-02 | 2000-09-06 | Halliburton Energy Services, Inc. | Downhole hydraulic path selection |
WO2002020942A1 (en) * | 2000-09-07 | 2002-03-14 | Halliburton Energy Services, Inc. | Hydraulic control system for downhole tools |
WO2002029205A1 (en) * | 2000-10-03 | 2002-04-11 | Halliburton Energy Services, Inc. | Hydraulic control system for downhole tools |
US6668936B2 (en) | 2000-09-07 | 2003-12-30 | Halliburton Energy Services, Inc. | Hydraulic control system for downhole tools |
US7306043B2 (en) | 2003-10-24 | 2007-12-11 | Schlumberger Technology Corporation | System and method to control multiple tools through one control line |
US9228423B2 (en) | 2010-09-21 | 2016-01-05 | Schlumberger Technology Corporation | System and method for controlling flow in a wellbore |
CN106593351A (en) * | 2016-12-13 | 2017-04-26 | 中国石油天然气股份有限公司 | Cementing sliding sleeve |
US10745998B2 (en) | 2015-04-21 | 2020-08-18 | Schlumberger Technology Corporation | Multi-mode control module |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2333785B (en) * | 1998-01-28 | 2002-07-31 | Baker Hughes Inc | Remote actuation of downhole tools using vibration |
US6349770B1 (en) | 2000-01-14 | 2002-02-26 | Weatherford/Lamb, Inc. | Telescoping tool |
GB2359833B (en) | 2000-03-04 | 2004-02-18 | Abb Offshore Systems Ltd | Packer system |
CA2425725C (en) | 2002-04-17 | 2011-05-24 | Schlumberger Canada Limited | Inflatable packer and method |
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US4945995A (en) * | 1988-01-29 | 1990-08-07 | Institut Francais Du Petrole | Process and device for hydraulically and selectively controlling at least two tools or instruments of a valve device allowing implementation of the method of using said device |
WO1992008875A2 (en) * | 1990-11-20 | 1992-05-29 | Framo Developments (Uk) Limited | Well completion system |
WO1996024748A1 (en) * | 1995-02-09 | 1996-08-15 | Baker Hughes Incorporated | Production wells having permanent downhole formation evaluation sensors |
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-
1997
- 1997-09-02 CA CA 2233480 patent/CA2233480A1/en not_active Abandoned
- 1997-09-02 AU AU41771/97A patent/AU4177197A/en not_active Abandoned
- 1997-09-02 GB GB9806774A patent/GB2321076A/en not_active Withdrawn
- 1997-09-02 WO PCT/US1997/015445 patent/WO1998009055A1/en unknown
-
1998
- 1998-04-29 NO NO981935A patent/NO981935L/en not_active Application Discontinuation
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US4636934A (en) * | 1984-05-21 | 1987-01-13 | Otis Engineering Corporation | Well valve control system |
US4945995A (en) * | 1988-01-29 | 1990-08-07 | Institut Francais Du Petrole | Process and device for hydraulically and selectively controlling at least two tools or instruments of a valve device allowing implementation of the method of using said device |
WO1992008875A2 (en) * | 1990-11-20 | 1992-05-29 | Framo Developments (Uk) Limited | Well completion system |
US5547029A (en) * | 1994-09-27 | 1996-08-20 | Rubbo; Richard P. | Surface controlled reservoir analysis and management system |
WO1996024748A1 (en) * | 1995-02-09 | 1996-08-15 | Baker Hughes Incorporated | Production wells having permanent downhole formation evaluation sensors |
Cited By (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6109357A (en) * | 1997-12-12 | 2000-08-29 | Baker Hughes Incorporated | Control line actuation of multiple downhole components |
GB2332225B (en) * | 1997-12-12 | 2002-06-26 | Baker Hughes Inc | Control line actuation of multiple downhole components |
AU753440B2 (en) * | 1997-12-12 | 2002-10-17 | Baker Hughes Incorporated | Control line actuation of multiple downhole components |
GB2332225A (en) * | 1997-12-12 | 1999-06-16 | Baker Hughes Inc | Control line actuation of multiple downhole tools |
WO1999047790A1 (en) * | 1998-03-13 | 1999-09-23 | Abb Offshore Systems Limited | Extraction of fluids from wells |
WO1999063234A3 (en) * | 1998-06-05 | 2000-03-09 | Bengt Gunnarsson | A device and method for regulating fluid flow in a well |
CN1118613C (en) * | 1998-06-05 | 2003-08-20 | 特里安格尔设备公司 | Device and method for regulating fluid flow in well |
US6516888B1 (en) | 1998-06-05 | 2003-02-11 | Triangle Equipment As | Device and method for regulating fluid flow in a well |
WO1999063234A2 (en) * | 1998-06-05 | 1999-12-09 | Bengt Gunnarsson | A device and method for regulating fluid flow in a well |
EP0999342A2 (en) * | 1998-11-02 | 2000-05-10 | Halliburton Energy Services, Inc. | Method and apparatus for controlling actuation of a tool within a subterranean wellbore |
EP0999342A3 (en) * | 1998-11-02 | 2002-12-04 | Halliburton Energy Services, Inc. | Method and apparatus for controlling actuation of a tool within a subterranean wellbore |
WO2000029715A1 (en) * | 1998-11-18 | 2000-05-25 | Schlumberger Technology Corporation | Flow control and isolation in a wellbore |
GB2363408B (en) * | 1998-11-18 | 2003-12-17 | Schlumberger Technology Corp | Flow control and isolation in a wellbore |
US6302216B1 (en) | 1998-11-18 | 2001-10-16 | Schlumberger Technology Corp. | Flow control and isolation in a wellbore |
GB2363408A (en) * | 1998-11-18 | 2001-12-19 | Schlumberger Technology Corp | Flow control and isolation in a wellbore |
EP1033470A2 (en) * | 1999-03-02 | 2000-09-06 | Halliburton Energy Services, Inc. | Downhole hydraulic path selection |
EP1033470A3 (en) * | 1999-03-02 | 2001-04-25 | Halliburton Energy Services, Inc. | Downhole hydraulic path selection |
AU752336B2 (en) * | 1999-03-02 | 2002-09-19 | Halliburton Energy Services, Inc. | Downhole hydraulic path selection |
US6298919B1 (en) | 1999-03-02 | 2001-10-09 | Halliburton Energy Services, Inc. | Downhole hydraulic path selection |
US6668936B2 (en) | 2000-09-07 | 2003-12-30 | Halliburton Energy Services, Inc. | Hydraulic control system for downhole tools |
WO2002020942A1 (en) * | 2000-09-07 | 2002-03-14 | Halliburton Energy Services, Inc. | Hydraulic control system for downhole tools |
US6591914B2 (en) | 2000-10-03 | 2003-07-15 | Hallliburton Energy Services, Inc. | Hydraulic control system for downhole tools |
GB2385348A (en) * | 2000-10-03 | 2003-08-20 | Halliburton Energy Serv Inc | Hydraulic control system for downhole tools |
WO2002029205A1 (en) * | 2000-10-03 | 2002-04-11 | Halliburton Energy Services, Inc. | Hydraulic control system for downhole tools |
GB2385348B (en) * | 2000-10-03 | 2005-08-31 | Halliburton Energy Serv Inc | Hydraulic control system for downhole tools |
US7306043B2 (en) | 2003-10-24 | 2007-12-11 | Schlumberger Technology Corporation | System and method to control multiple tools through one control line |
US9228423B2 (en) | 2010-09-21 | 2016-01-05 | Schlumberger Technology Corporation | System and method for controlling flow in a wellbore |
US10745998B2 (en) | 2015-04-21 | 2020-08-18 | Schlumberger Technology Corporation | Multi-mode control module |
CN106593351A (en) * | 2016-12-13 | 2017-04-26 | 中国石油天然气股份有限公司 | Cementing sliding sleeve |
Also Published As
Publication number | Publication date |
---|---|
GB9806774D0 (en) | 1998-05-27 |
NO981935D0 (en) | 1998-04-29 |
CA2233480A1 (en) | 1998-03-05 |
GB2321076A8 (en) | 1998-08-10 |
AU4177197A (en) | 1998-03-19 |
NO981935L (en) | 1998-04-29 |
GB2321076A (en) | 1998-07-15 |
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