CN102337859B - Coal field drill hole leak blocking system - Google Patents
Coal field drill hole leak blocking system Download PDFInfo
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- CN102337859B CN102337859B CN201110279153.0A CN201110279153A CN102337859B CN 102337859 B CN102337859 B CN 102337859B CN 201110279153 A CN201110279153 A CN 201110279153A CN 102337859 B CN102337859 B CN 102337859B
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- drill hole
- hole
- leak blocking
- coal field
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Abstract
The invention relates to a coal field drill hole leak blocking system, belonging to the technical field of coal field drill holes. The coal field drill hole leak blocking system comprises an infusion system, a drill pipe connection system and a slurry system, wherein the infusion system comprises a infusion pipe, a check valve, a pipe boot, an infusion bottom hole, an infusion round hole, and a first level piston and a second level piston arranged in the infusion pipe from the bottom up; the drill pipe connection system comprises a drill pipe joint, a jump ring, an expansion sleeve sleeved and wound on the groove of the drill pipe joint, and a punching hole arranged at the groove on the middle part of the drill pipe joint; and the slurry system comprises insulating liquid and leak blocking liquid. The coal field drill hole leak blocking system has the advantages that the insulating liquid and the leak blocking liquid are injected at different periods for blocking holes, fractures and cracks on the rock body of the drill hole wall when an organic polymer film is formed on the wall of the drill hole, so that the leak blocking effect is improved; the expansion sleeve expands to tightly attach with the wall of the drill hole under the effect of slurry pressure to form an effective blocking space so as to be beneficial to the directional flowing of the insulating liquid and the leak blocking liquid. The system has the advantages of simple structure, convenience for operation ad low engineering cost.
Description
Technical field
The present invention relates to a kind of leak stopping system, specifically a kind of coal field drill hole leak blocking system, belongs to drilling technique field, coalfield.
Background technology
Bore leaking be the most serious in drilling project, expend one of drilling accident that fund is maximum, once bore leaking occur, having a strong impact on drilling efficiency, cause drilling cost increase, have a strong impact on construction speed and quality, and extend the drilling construction duration.At present, the mode that cement paste slurries that coal drilling is conventional, chemical grout, inert material etc. are thrown in or pumped into by ground is implemented leak stopping, but in the time that loss circulation material does not play a role, washed away by underground water, therefore traditional device for plugging and leak-stopping technique are not suitable for the complicated leakage stratum such as leakage stratum, the much higher layer of groundwater table position.
Summary of the invention
The problem existing for above-mentioned prior art, the invention provides a kind of coal field drill hole leak blocking system, pressurize by slush pump pumping mud, utilize expansion sleeve to expand and separate bore leaking space and non-leakage space, isolate stratum by insulating liquid, stop up loss horizon by leakage-stop liquid, have easy to operate, leak stopping efficiency is high, the advantage that leak stopping scope is large.
To achieve these goals, the technical solution used in the present invention is: a kind of coal field drill hole leak blocking system, comprise filling system, drilling rod connected system and slurries system,
Filling system comprises intrusion pipe, one way valve, and shoe, perfusion bottom outlet, pours into circular hole, and is arranged at respectively first stage piston and the second piston of intrusion pipe inside from bottom to top; One way valve is installed on first stage piston top, is placed between first stage piston and second piston, and shoe uses screw thread to be connected with intrusion pipe by hole, and perfusion circular hole is distributed in intrusion pipe bottom, and perfusion bottom outlet is placed in intrusion pipe bottom;
Drilling rod connected system comprises tool joint, and jump ring twines the expansion sleeve that is placed on tool joint groove, and is located at the punching hole of tool joint central slot; Expansion sleeve is connected with tool joint by jump ring, and drilling rod is connected with intrusion pipe by tool joint;
Slurries system comprises insulating liquid and leakage-stop liquid, and insulating liquid and leakage-stop liquid are filled in respectively between shoe, first stage piston and second piston;
Further, perfusion circular hole has 4, is evenly distributed on intrusion pipe bottom, and with sealant sealing;
Further, punching hole has 4, is uniformly distributed in the groove at tool joint middle part;
Further, first stage piston and second piston are made up of nylon six or reinforcement nylon;
Further, one way valve is made up of bead and spring;
Further, insulating liquid is polyacrylamide solution;
Further, leakage-stop liquid is the mixture of cement, water glass and fine sand;
Further, expansion sleeve is made by rubber membrane.
Operating principle: open slush pump, mud to borehole wall extrusion expansion cover, makes expansion sleeve be close to hole wall by punching hole, forms at the bottom of hole to the independent perfusion space between device for casting; The insulating liquid of intrusion pipe bottom filling backs down the fluid sealant of perfusion circular hole and perfusion bottom orifice under first stage piston promotes, and enters bore leaking layer, forms film on hole wall, isolation underground water; Liquid to be isolated fully contacts with bore leaking layer, again open slush pump, the leakage-stop liquid that fill on intrusion pipe top is fed into bore leaking layer under the promotion of second piston, and in leak stopping environment independently, realizes initial set and the final set of leakage-stop liquid, stops up leakage formation pore, crack and solution crack.
The invention has the beneficial effects as follows: 1. slurries system has adopted insulating liquid and two kinds of slurries of leakage-stop liquid, and insulating liquid is polyacrylamide solution, forms organic macromolecule membrane between hole wall, effectively isolates underground water.Leakage-stop liquid is the mixture of water glass, cement and fine sand composition, has the feature fast, setting strength is high of condensing, and two kinds of liquid work respectively to leakage stratum, greatly improve leak stopping efficiency and plugging effect;
2. because leak stopping system has adopted insulating liquid and leakage-stop liquid and two-stage piston, can inject lost-circulation zone by control by stages, form in organic macromolecule membrane situation at borehole wall, carry out the shutoff of hole wall rock mass hole, crack and solution crack, improve plugging effect, effectively brought into play the effect of insulating liquid and leakage-stop liquid, plugging effect is obvious;
3. because leak stopping system has adopted expansion sleeve, make at the bottom of hole relatively independently to reperfusion space between device for casting, reduce interference and the impact on leak stopping layer position of other layer of position and underground water, be conducive to the qualitative motion of leakage-stop liquid to leakage stratum;
4. adopt the piston that reinforcement nylon or nylon six are material, stability is higher, effectively control piston quality and the impact of friction in down stroke on insulating liquid and leakage-stop liquid thereof.
5. native system is simple in structure, easy to operate, and engineering cost is low, more remarkable for the effect of the complicated leakage of coalfield boring stratum leak stopping.Bore leaking leak stopping system is less demanding to bore leaking stratum, applicable to the leak stopping of various leakages stratum and different groundwater table bore leakings, can effectively strengthen leakage earth formation and intensity.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present invention.
In figure: 1, intrusion pipe, 2, first stage piston, 3, second piston, 4, one way valve, 5, shoe, 6, perfusion bottom outlet, 7, perfusion circular hole, 8, fluid sealant, 9, tool joint, 10, sealing ring, 11, punching hole, 12, expansion sleeve, 13, jump ring, 14, insulating liquid, 15, leakage-stop liquid.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, a kind of coal field drill hole leak blocking system, be made up of filling system, drilling rod connected system and slurries system, filling system is by intrusion pipe 1, first stage piston 2, second piston 3, one way valve 4, shoe 5, perfusion bottom outlet 6, and perfusion circular hole 7 and fluid sealant 8 form; Intrusion pipe 1 inside arranges respectively first stage piston 2 and second piston 3 from bottom to top, one way valve 4 is arranged at first stage piston 2 tops, shoe 5 bottoms are provided with perfusion bottom outlet 6, the perfusion circular hole 7 that uniform four diameters in intrusion pipe 1 bottom are 10mm, and seal with fluid sealant 8, shoe 5 uses screw thread to be connected with intrusion pipe 1 by hole, and leaves the perfusion bottom outlet 6 that diameter is 10mm in the middle of shoe 5, and seals with fluid sealant 8;
Described intrusion pipe 1 is the seamless steel pipe of length 1300mm, diameter 89mm;
Described first stage piston 2 and second piston 3 are made up of nylon six or reinforcement nylon;
Described one way valve 4 is made up of bead and spring.
Drilling rod connected system is made up of tool joint 9, sealing ring 10, punching hole 11, expansion sleeve 12 and jump ring 13; Tool joint 9 is for connecting the joint of intrusion pipe 1 and drilling rod, tool joint 9 is sealed by sealing ring 10 with the junction of filling system, tool joint 9 central slot places are evenly equipped with the punching hole 11 that 4 diameters are 10mm, groove is tied with expansion sleeve 12 outward, and expansion sleeve 12 is connected with tool joint 9 by jump ring 13.By extremely boring and drilling rod connected system of slush pump pumping mud, slush pump pumping pressure and pump amount can be read by the slush pump on ground, part mud overlaps 12 by punching hole 11 to borehole wall extrusion expansion, make expansion sleeve 12 be close to hole wall, form at the bottom of hole to the independent perfusion space between device for casting, another part mud promotes first stage piston 2 and second piston 3 moves downward, and extrudes respectively insulating liquid 14 and leakage-stop liquid 15, stops up leakage hole wall.
Expansion sleeve 12 is made by rubber membrane.
Slurries system comprises the insulating liquid 14 being made up of polyacrylamide solution, the leakage-stop liquid 15 being formed by cement, water glass and fine sand, and insulating liquid 14 and leakage-stop liquid 15 are filled in respectively between shoe, first stage piston 2 and second piston 3; Insulating liquid 14 plays the effect on isolation boring and underground water, hole wall stratum, and leakage-stop liquid 15 plays shutoff leakage stratum body hole, crack and solution crack, strengthens missing the effect of earth formation.
Take tool joint 9, shoe 5 apart, take out first stage piston 2 and second piston 3, to pour into bottom outlet 6 and pour into circular hole 7 and seal with fluid sealant 8 respectively, expansion sleeve 12 use jump rings 13 are fixed on tool joint 9, and respectively the leakage-stop liquid 15 of the insulating liquid of polyacrylamide solution 14 and cement, fine sand, water glass is inserted in intrusion pipe 1, and corresponding first stage piston 2 and second piston 3, tool joint 9, sealing ring 10, the shoe 5 laid, one way valve 4 plays the effect of gas in water conservancy diversion intrusion pipe 1.Drilling rod is connected with filling system by drilling rod connected system, and utilize rig to transfer to loss horizon, slush pump by drilling rod to leak stopping system pumping mud, pumping procedure has two objects, object one, mud is extruded from punching hole 11, and expansion sleeve 12 is expanded and is squeezed to borehole wall, the airtight leak stopping space between forming at the bottom of loss horizon and hole; Object two, promotes first stage piston 2 and second piston 3 and moves downward, and insulating liquid 14 is washed perfusion bottom outlet 6 open and poured into the fluid sealant 8 at circular hole 7 places, enters leakage stratum, and isolation underground water and the interior environment of boring, close slush pump; Static one to two hour, again open slush pump, second piston 3 moves downward, and the spring of compression one way valve 4 exposes perfusion circular hole 7, promotes leakage-stop liquid 15 and pours in leakage stratum, closes slush pump, treats leakage-stop liquid 15 initial set prerequisites brills, unloads and clean device for plugging; Treat leakage-stop liquid 15 final set, stop up hole wall rock mass hole, crack and solution crack, strengthen hole wall rock mass strength and structure, complete cleaning bottom of hole after lost-circulation zone leak stopping task, inspection plugging effect.
Drilling rod is connected with intrusion pipe 1 by tool joint 9, slush pump by drilling rod to leak stopping system pumping mud, promoting first stage piston 2 and second piston 3 moves downward, stage by stage insulating liquid 14 and leakage-stop liquid 15 are clamp-oned to leakage stratum, the extruding that the expansion sleeve 12 of drilling rod junction overflows mud through punching hole 11 places, expansion is adjacent to hole wall, forms airtight effective leak stopping space; Insulating liquid 14 and leakage-stop liquid 15 under mud pressure effect, back down the fluid sealant 8 at perfusion bottom outlet 6 and perfusion circular hole 7 places respectively, enter leakage stratum, play the effect of isolation stratum, shutoff loss horizon; Can be to leakage stratum leak stopping such as mud stone, sandstone and limestones in coalfield boring, can be to the bore blocking of part leakage and total loss feature, and complete the leak stopping of different groundwater table bore leakings.
Claims (8)
1. a coal field drill hole leak blocking system, is characterized in that, comprises filling system, drilling rod connected system and slurries system,
Described filling system comprises intrusion pipe (1), one way valve (4), and shoe (5), perfusion bottom outlet (6), perfusion circular hole (7), and be arranged at respectively intrusion pipe (1) inner first stage piston (2) and second piston (3) from bottom to top; One way valve (4) is installed on first stage piston (2) top, be placed between first stage piston (2) and second piston (3), shoe (5) uses screw thread to be connected with intrusion pipe (1) by hole, perfusion circular hole (7) is distributed in intrusion pipe (1) bottom, and perfusion bottom outlet (6) is placed in intrusion pipe (1) bottom;
Described drilling rod connected system comprises tool joint (9), and jump ring (13) twines the expansion sleeve (12) that is placed on tool joint (9) groove, and is located at the punching hole (11) of tool joint (9) central slot; Expansion sleeve (12) is connected with tool joint (9) by jump ring (13), and drilling rod is connected with intrusion pipe (1) by tool joint (9);
Described slurries system comprises insulating liquid (14) and leakage-stop liquid (15), and insulating liquid (14) and leakage-stop liquid (15) are filled in respectively between shoe and first stage piston (2), between first stage piston (2) and second piston (3).
2. a kind of coal field drill hole leak blocking system according to claim 1, is characterized in that, described perfusion circular hole (7) has 4, is uniformly distributed in intrusion pipe (1) bottom, and seals with fluid sealant (8).
3. a kind of coal field drill hole leak blocking system according to claim 1, is characterized in that, described punching hole (11) has 4, is uniformly distributed in the groove at tool joint (9) middle part.
4. a kind of coal field drill hole leak blocking system according to claim 1, is characterized in that, described first stage piston (2) and second piston (3) are made up of nylon six or reinforcement nylon.
5. a kind of coal field drill hole leak blocking system according to claim 1, is characterized in that, described one way valve (4) is made up of bead and spring.
6. a kind of coal field drill hole leak blocking system according to claim 1, is characterized in that, described insulating liquid (14) is polyacrylamide solution.
7. a kind of coal field drill hole leak blocking system according to claim 1, is characterized in that, described leakage-stop liquid (15) is the mixture of cement, water glass and fine sand.
8. a kind of coal field drill hole leak blocking system according to claim 1, is characterized in that, described expansion sleeve (12) is made by rubber membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110279153.0A CN102337859B (en) | 2011-09-20 | 2011-09-20 | Coal field drill hole leak blocking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110279153.0A CN102337859B (en) | 2011-09-20 | 2011-09-20 | Coal field drill hole leak blocking system |
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| Publication Number | Publication Date |
|---|---|
| CN102337859A CN102337859A (en) | 2012-02-01 |
| CN102337859B true CN102337859B (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110279153.0A Expired - Fee Related CN102337859B (en) | 2011-09-20 | 2011-09-20 | Coal field drill hole leak blocking system |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11111742B2 (en) * | 2017-03-16 | 2021-09-07 | Saudi Arabian Oil Company | Apparatus for loss circulation material performance evaluation |
| CN107288578A (en) * | 2017-08-17 | 2017-10-24 | 李建峰 | One kind only takes hot ground hot hole solid hole plugging device and the method for not fetching water |
| US20200110015A1 (en) | 2018-10-04 | 2020-04-09 | Saudi Arabian Oil Company | Vugular Loss Simulating Vug Tester for Screening and Evaluation of LCM Products |
| CN109025897B (en) * | 2018-10-22 | 2021-05-18 | 吉林大学 | Foaming type volume leaking stoppage device in well |
| CN109723404B (en) * | 2019-03-04 | 2024-04-16 | 中国煤炭地质总局广东煤炭地质局勘查院 | Naked eye plugging device and method for coal gas exploration well |
| CN112963118B (en) * | 2019-12-13 | 2023-04-25 | 中国石油天然气股份有限公司 | Plugging device and plugging method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2208127C1 (en) * | 2001-11-05 | 2003-07-10 | Общество с ограниченной ответственностью "Биттехника" | Double-acting hydraulic packer |
| DE10206308A1 (en) * | 2002-02-14 | 2003-09-11 | Hoelscher Wasserbau Gmbh & Co | Leak plugging system for vertical pipeline for well has piston lowered down well and fitted with seals to allow pressure to be applied to force sealing compound into pipe joints |
| 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 |
| CN1599835A (en) * | 2001-12-03 | 2005-03-23 | 国际壳牌研究有限公司 | Method and device for injecting a fluid into a formation |
| CN202273640U (en) * | 2011-09-20 | 2012-06-13 | 山西潞安环保能源开发股份有限公司 | Leak stoppage system for drilling of coal field |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8436743B2 (en) * | 2007-05-04 | 2013-05-07 | Schlumberger Technology Corporation | Method and apparatus for measuring a parameter within the well with a plug |
| CN101768974B (en) * | 2009-12-29 | 2012-07-04 | 中铁隧道集团有限公司 | Method and device for grouting in hole and effectively stopping grout |
-
2011
- 2011-09-20 CN CN201110279153.0A patent/CN102337859B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2208127C1 (en) * | 2001-11-05 | 2003-07-10 | Общество с ограниченной ответственностью "Биттехника" | Double-acting hydraulic packer |
| CN1599835A (en) * | 2001-12-03 | 2005-03-23 | 国际壳牌研究有限公司 | Method and device for injecting a fluid into a formation |
| DE10206308A1 (en) * | 2002-02-14 | 2003-09-11 | Hoelscher Wasserbau Gmbh & Co | Leak plugging system for vertical pipeline for well has piston lowered down well and fitted with seals to allow pressure to be applied to force sealing compound into pipe joints |
| 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 |
| CN202273640U (en) * | 2011-09-20 | 2012-06-13 | 山西潞安环保能源开发股份有限公司 | Leak stoppage system for drilling of coal field |
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| CN102337859A (en) | 2012-02-01 |
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