CN102337861A - Drilling hole wall molding forming device - Google Patents
Drilling hole wall molding forming device Download PDFInfo
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- CN102337861A CN102337861A CN2011103310913A CN201110331091A CN102337861A CN 102337861 A CN102337861 A CN 102337861A CN 2011103310913 A CN2011103310913 A CN 2011103310913A CN 201110331091 A CN201110331091 A CN 201110331091A CN 102337861 A CN102337861 A CN 102337861A
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- core bar
- pipe
- piston
- inner chamber
- top connection
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Abstract
The invention discloses a drilling hole wall molding former, which comprises: the lower part of the slurry bin at the lower end is provided with a one-way valve, and the upper part of the inner cavity is provided with a piston seat sealed with the inner wall of the slurry bin; an expansion mechanism in the middle, comprising: the outer part of the hollow core rod is sleeved with an expansion pipe, the lower part of the expansion pipe is compressed through a lower pressure pipe, and the upper end and the lower end of the lower pressure pipe are respectively in threaded connection with the core rod and the slurry bin; the upper part of the expansion pipe is tightly pressed by an upper pressure pipe and the upper pressure pipe is sleeved on the core rod; an overhead connection mechanism comprising: the upper joint is provided with an internal thread connected with the drill rod, and the core rod is provided with a radial small hole communicated with the inner cavity of the expansion pipe. The invention has the characteristics of low cost, good supporting effect, quick supporting, good connection with the hole wall, safety, reliability, small abrasion to the drill rod, benefit for subsequent drilling operation and the like, and the formed hole wall has elastic plasticity.
Description
Technical field:
The present invention relates to a kind of wall of drill hole and mould shaping device.
Background technology:
Geological prospecting, oil drilling, engineering investigation and other drilling project creep in the operation, and boring bad ground hole wall support technology is an a great problem.In most cases all adopt mud off, but, adopt mud off to be difficult to meet the demands merely at some bad ground; Setting of casing can reach the purpose of the complicated hole of packing section, but whenever is lowered to the one-level sleeve pipe, and bore diameter will dwindle one-level, is unfavorable for drilling operation, and drilling cost increases greatly; Bulged tube technology in the oil drilling, its employed expansion tube required power that expands is too big, geological drilling equipment scarce capacity, the shortcoming that also exists some broken formation to put in place down simultaneously; When adopting cement rendering dado, on some severe leakage, water burst stratum, cement is prone to diluted or washes away or calculus not, and the cement hole wall that forms between cement and the hole wall belongs to and be rigidly connected, and drilling accident takes place the piece that after beaing, comes off easily.Therefore all there is certain weak point in above-mentioned several kinds of technology, are difficult to satisfy the requirement of boring bad ground hole wall support technology.
Summary of the invention:
For overcoming the defective of prior art; The object of the present invention is to provide a kind of wall of drill hole to mould shaping device; It has, and cost is low, but the good quick supporting of supporting effect, hole wall good, safe and reliable with the hole wall connectivity, that form have elastoplasticity; Little to drill rod abrasion, be beneficial to the follow-up characteristics such as operation of creeping into.
Technical solution problem of the present invention adopts following technical scheme:
Wall of drill hole is moulded shaping device, comprising:
Be in the slurries storehouse of lower end, the bottom in said slurries storehouse is provided with one way valve, and the inner chamber top in slurries storehouse is provided with piston seat, seals between the inwall in said piston seat and said slurries storehouse;
Be in the expansion mechanism at middle part; Said expansion mechanism comprises: the core bar of hollow; Outside said core bar, be socketed with expansion tube, the bottom of said expansion tube is pressed on the said core bar through pressing down pipe, and the said upper and lower side that presses down pipe is threadedly connected to respectively on said core bar and the said slurries storehouse; The top of said expansion tube is pressed on the said core bar through last pressure pipe, and said going up presses pipe box to be connected on the said core bar, and said going up between pressure pipe and the said core bar is provided with the O RunddichtringO;
Be in the bindiny mechanism on top, said bindiny mechanism comprises: the top connection of the hollow that is threaded with said core bar upper end, and said top connection upper end is provided with the internal thread that is connected with drilling rod, is provided with bypass valve in the said top connection;
Said core bar is provided with the radial hole that communicates with said expansion tube inner chamber.
Design feature of the present invention also is:
The structure of the bypass valve in the said top connection is: the lower lumen of top connection is reverse frustoconic, and the top connection sidewall at reverse frustoconic inner chamber place is provided with radial hole, and said radial hole is realized shutoff with the plug of the hollow of reverse frustoconic.
Said top connection and said on press on the core bar between the pipe and be socketed with locking nut, will saidly go up to press to manage with said locking nut and lock onto on the said core bar.
The bottom of said piston seat is socketed with piston body, on the lower surface of said piston body, offers annular groove, and the lower surface circumference of said annular groove and said piston body is a concentric circles; Said piston seat center is provided with the screwed hole of axial perforation piston only, and said screwed hole is provided with the shutoff bolt towards an end of said core bar.
The lower end screw thread in said slurries storehouse is connected with the lower contact of hollow; Screw thread is connected with the correcting joint of hollow in the lower end of lower contact; The inner chamber top of said lower contact is provided with the truncated cone-shaped channel that communicates with slurries storehouse inner chamber; And the inner chamber of lower contact be provided with can the said truncated cone-shaped channel of shutoff the truncated cone-shaped lower piston, in the inner chamber of said lower contact, also be provided with spring, the upper and lower side of said spring is a spring base with said lower piston and said correcting joint respectively.
Compared with present technology, beneficial effect of the present invention is embodied in:
The present invention is through sending into the chemical grout of selecting for use in precalculated position in the boring, a chemical grout part is penetrated in the hole wall crack expand fixed, stratum loose crushing rock bonding is as a whole, improve the formation rock bulk strength greatly; Another part slurries then form one section continuous, fine and close, as to have certain intensity and anti-permeability performance " artificial hole wall " at hole wall.This manual work hole wall has certain plasticity, impact resistance, and intensity is higher, and is impervious good, can satisfy the probing requirement.The present invention can solve the hole wall supporting problem of boring bad ground fast, and slurry consolidation speed is fast, and 1-2 minute can be fixed, and generally induration can reach higher intensity after 30 minutes, can carry out the following step and normally creep into.The present invention is compared to the method for traditional setting of casing supporting hole wall, and drilling cost, activity duration significantly reduce, and to creep into operation influence little to follow-up, and this technology is more reliable with respect to mud off.The present invention does not have specific (special) requirements to on-the-spot drilling equipment in addition, and is easy to utilize.
Description of drawings:
Fig. 1 is an assembly structure sketch map of the present invention; Fig. 2 is the A portion enlarged drawing of Fig. 1; Fig. 3 is a fundamental diagram of the present invention.
Label among the figure: 1 slurries storehouse, 2 piston seats, 21 piston bodies, 22 annular grooves, 3 core bars; 31 apertures, 4 expansion tubes, 5 springs, 6 press down pipe, press pipe on 7; 8 is the O RunddichtringO, 9 top connections, 91 radial holes, 10 shutoff bolts, 11 locking nuts; 12 lower contacts, 13 correcting joints, 14 lower pistons, 15 drilling rods, 16 plugs.
Below pass through the specific embodiment, and combine accompanying drawing that the present invention is described further.
The specific embodiment:
Embodiment: referring to Fig. 1,2, the wall of drill hole of present embodiment is moulded shaping device, comprising:
Be in the slurries storehouse 1 of lower end; Slurries storehouse 1 lower end screw thread is connected with the lower contact 12 of hollow; Screw thread is connected with the correcting joint 13 of hollow in the lower end of lower contact, and the inner chamber top of lower contact is provided with the truncated cone-shaped channel that communicates with slurries storehouse inner chamber, and is provided with the truncated cone-shaped lower piston 14 of ability shutoff truncated cone-shaped channel at the inner chamber of lower contact; In the inner chamber of lower contact, also be provided with spring 5, the upper and lower side of spring 5 is spring base with lower piston 14 with correcting joint 13 respectively.Inner chamber top in slurries storehouse 1 is provided with piston seat 2, is socketed with piston body 21 in the bottom of piston seat 2, on the lower surface of piston body 21, offers annular groove 22, and the lower surface circumference of annular groove 22 and piston body is a concentric circles; The purpose that annular groove 22 is set is, when the pressure in the chemical grout storehouse 1 raise, pressure impelled annular groove 22 to open to inside and outside both sides, tightly is sealed on the inwall in inwall and slurries storehouse of piston seat.Piston seat 2 centers are provided with the screwed hole of axial perforation piston only, are provided with shutoff bolt 10 at screwed hole towards an end of core bar 3.
Be in the expansion mechanism at middle part, it comprises: the core bar 3 of hollow, outside core bar, be socketed with expansion tube 4, and the bottom of expansion tube is pressed on the core bar 3 through pressing down pipe 6, and the upper and lower side that presses down pipe is threadedly connected to respectively on core bar 3 and the slurries storehouse 1; The top of expansion tube is pressed on the core bar 3 through last pressure pipe 7, and last pressure pipe 7 is socketed on the core bar 3, and last the pressure between pipe 7 and the core bar 3 is provided with O RunddichtringO 8.Core bar 3 is provided with the radial hole 31 that communicates with the expansion tube inner chamber.
Be in the bindiny mechanism on top; Bindiny mechanism comprises: the top connection 9 of the hollow that is threaded with core bar 3 upper ends; The top connection upper end is provided with the internal thread that is connected with drilling rod, in top connection 9, is provided with bypass valve, and be specially: the lower lumen of top connection is reverse frustoconic; Top connection sidewall at reverse frustoconic inner chamber place is provided with radial hole 91, and radial hole 91 is realized shutoff with the plug 16 of the hollow of reverse frustoconic.
Top connection 9 and on press on the core bar between the pipe 7 and be socketed with locking nut 11, will go up with locking nut 11 and press pipe 7 to lock onto on the said core bar 3.
During use; Assemble hole wall of the present invention according to the assembling drawing of Fig. 1 and mould shaping device, lower contact 12 and correcting joint 13 are installed, the truncated cone-shaped channel that lower piston 14 shutoff are communicated with the slurries storehouse; Lower piston is set to truncated cone-shaped; When the device test was in deep-well, lower piston can receive the ambient pressure compressing, and plug was tight more more, better tightness.The chemical grout of in slurries storehouse 1, packing into is then installed piston seat 2, and from the screwed hole at piston seat 2 centers chemical grout is filled with the slurries storehouse, seals with shutoff bolt 10 afterwards.Expansion tube 4 is socketed on the core bar 3, and the upper and lower side of expansion tube uses respectively and press pipe 7, press down pipe 6 is pressed on the core bar, presses down pipe 6 and is threaded with slurries storehouse 1, and last pressure is managed 7 upper end and is locked on the core bar 3 with locking nut 11.Top connection 9 is threaded in core bar 3 upper ends.Referring to Fig. 3, the internal thread of top connection 9 is connected with drilling rod 15, slowly is lowered to precalculated position in the boring after assembling is accomplished; In drilling rod, throw in plug 16 then; Treat under the plug behind the precalculated position, can to block the aperture 91 of top connection 9 sidewalls, aperture can guarantee inside and outside the core bar before shutoff, basic pressurized balance inside and outside the slurries storehouse; Also can make liquid and external communications in the drilling rod, reduce to bore down resistance.Open slush pump, when fluid pressure in the drilling rod reached piston promotion pressure, piston seat 2 was descending, promoted the chemical grout motion, and pressure forces lower piston 14 descending, and truncated cone-shaped channel is opened, and chemical grout is got in the boring.When fluid pressure in the core bar 3 raise, liquid was injected the expansion tube inner chamber from the radial hole 31 of core bar 3, is broken up by current for preventing expansion tube simultaneously, and the axis of radial hole 91 becomes the angle about 30 ° with the axis of core bar 3.Expansion tube 4 expands gradually, when treating that piston seat 2 walks to the end, chemical grout is all extruded, and the interior fluid pressure of drilling rod this moment sharply raises, and expansion tube expands rapidly, and the annular gap that wall of drill hole is moulded between shaping device and the hole wall is sealed fully.Got final product release in voltage stabilizing 1-2 minute; This moment a part of chemical grout be penetrated in the hole wall crack expand fixed; Stratum loose crushing rock bonding is as a whole, and another part chemical grout is then continuous, fine and close one section of hole wall formation, has the artificial hole wall of certain intensity and anti-permeability performance.After the release wall of drill hole is moulded shaping device and propose the aperture.
Claims (5)
1. wall of drill hole is moulded shaping device, it is characterized in that comprising:
Be in the slurries storehouse (1) of lower end, the bottom in said slurries storehouse is provided with one way valve, and the inner chamber top in slurries storehouse is provided with piston seat (2), seals between the inwall in said piston seat and said slurries storehouse;
Be in the expansion mechanism at middle part; Said expansion mechanism comprises: the core bar of hollow (3); Outside said core bar, be socketed with expansion tube (4); The bottom of said expansion tube is pressed on the said core bar (3) through pressing down pipe (6), and the said upper and lower side that presses down pipe is threadedly connected to respectively on said core bar (3) and the said slurries storehouse (1); The top of said expansion tube is pressed on the said core bar (3) through last pressure pipe (7), and said going up presses pipe (7) to be socketed on the said core bar (3), and said going up between pressure pipe (7) and the said core bar (3) is provided with O RunddichtringO (8);
Be in the bindiny mechanism on top, said bindiny mechanism comprises: the top connection (9) of the hollow that is threaded with said core bar (3) upper end, and said top connection upper end is provided with the internal thread that is connected with drilling rod, and said top connection is provided with bypass valve in (9);
Said core bar (3) is provided with the radial hole (31) that communicates with said expansion tube inner chamber.
2. wall of drill hole according to claim 1 is moulded shaping device; It is characterized in that; The structure of the bypass valve in the said top connection is: the lower lumen of top connection is reverse frustoconic; Top connection sidewall at reverse frustoconic inner chamber place is provided with radial hole (91), and said radial hole (91) is realized shutoff with the plug (16) of the hollow of reverse frustoconic.
3. wall of drill hole according to claim 1 is moulded shaping device; It is characterized in that; Be socketed with locking nut (11) in said top connection (9) and said going up on the core bar of pressing between the pipe (7), press pipe (7) to lock onto on the said core bar (3) said going up with said locking nut (11).
4. wall of drill hole according to claim 1 is moulded shaping device; It is characterized in that; The bottom of said piston seat (2) is socketed with piston body (21); On the lower surface of said piston body (21), offer annular groove (22), said annular groove (22) is a concentric circles with the lower surface circumference of said piston body; Said piston seat (2) center is provided with the screwed hole of axial perforation piston only, and said screwed hole is provided with shutoff bolt (10) towards an end of said core bar (3).
5. wall of drill hole according to claim 1 is moulded shaping device; It is characterized in that; The lower end screw thread in said slurries storehouse (1) is connected with the lower contact (12) of hollow; Screw thread is connected with the correcting joint (13) of hollow in the lower end of lower contact, and the inner chamber top of said lower contact is provided with the truncated cone-shaped channel that communicates with slurries storehouse inner chamber, and is provided with the truncated cone-shaped lower piston (14) of the said truncated cone-shaped channel of ability shutoff at the inner chamber of lower contact; In the inner chamber of said lower contact, also be provided with spring (5), the upper and lower side of said spring is a spring base with said lower piston (14) and said correcting joint (13) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103310913A CN102337861A (en) | 2011-10-27 | 2011-10-27 | Drilling hole wall molding forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103310913A CN102337861A (en) | 2011-10-27 | 2011-10-27 | Drilling hole wall molding forming device |
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| Publication Number | Publication Date |
|---|---|
| CN102337861A true CN102337861A (en) | 2012-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103310913A Pending CN102337861A (en) | 2011-10-27 | 2011-10-27 | Drilling hole wall molding forming device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912233B (en) * | 2014-03-17 | 2018-01-05 | 河南理工大学 | Underground is drilled automatic blowout-prevention method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3159219A (en) * | 1958-05-13 | 1964-12-01 | Byron Jackson Inc | Cementing plugs and float equipment |
| CN2654845Y (en) * | 2003-10-24 | 2004-11-10 | 四川石油管理局川东钻探公司 | Built in bag type leaking stoppage apparatus |
| CN101768974A (en) * | 2009-12-29 | 2010-07-07 | 中铁隧道集团有限公司 | Method and device for grouting in hole and effectively stopping grout |
| KR20110024860A (en) * | 2009-09-03 | 2011-03-09 | 송양수 | Packer |
| CN202273644U (en) * | 2011-10-27 | 2012-06-13 | 安徽省地质矿产勘查局313地质队 | Drilling hole wall molding forming device |
-
2011
- 2011-10-27 CN CN2011103310913A patent/CN102337861A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3159219A (en) * | 1958-05-13 | 1964-12-01 | Byron Jackson Inc | Cementing plugs and float equipment |
| CN2654845Y (en) * | 2003-10-24 | 2004-11-10 | 四川石油管理局川东钻探公司 | Built in bag type leaking stoppage apparatus |
| KR20110024860A (en) * | 2009-09-03 | 2011-03-09 | 송양수 | Packer |
| CN101768974A (en) * | 2009-12-29 | 2010-07-07 | 中铁隧道集团有限公司 | Method and device for grouting in hole and effectively stopping grout |
| CN202273644U (en) * | 2011-10-27 | 2012-06-13 | 安徽省地质矿产勘查局313地质队 | Drilling hole wall molding forming device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912233B (en) * | 2014-03-17 | 2018-01-05 | 河南理工大学 | Underground is drilled automatic blowout-prevention method |
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Application publication date: 20120201 |