CN102182499B - Hydrofracturing-based method and equipment for diminishing dust and eliminating outburst of coal bed - Google Patents
Hydrofracturing-based method and equipment for diminishing dust and eliminating outburst of coal bed Download PDFInfo
- Publication number
- CN102182499B CN102182499B CN2011100997914A CN201110099791A CN102182499B CN 102182499 B CN102182499 B CN 102182499B CN 2011100997914 A CN2011100997914 A CN 2011100997914A CN 201110099791 A CN201110099791 A CN 201110099791A CN 102182499 B CN102182499 B CN 102182499B
- Authority
- CN
- China
- Prior art keywords
- pressure
- coal
- sand
- water
- waterpower
- Prior art date
Links
- 239000003245 coal Substances 0.000 title claims abstract description 75
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 230000003467 diminishing Effects 0.000 title abstract 3
- 239000000428 dust Substances 0.000 title abstract 3
- 239000011901 water Substances 0.000 claims abstract description 75
- 239000004576 sand Substances 0.000 claims abstract description 52
- 239000007789 gases Substances 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 238000002347 injection Methods 0.000 claims abstract description 12
- 239000007924 injections Substances 0.000 claims abstract description 12
- 235000006085 Vigna mungo var mungo Nutrition 0.000 claims abstract description 9
- 240000005616 Vigna mungo var. mungo Species 0.000 claims abstract description 9
- 238000005553 drilling Methods 0.000 claims abstract description 8
- 238000000605 extraction Methods 0.000 claims abstract description 7
- 238000005086 pumping Methods 0.000 claims description 19
- 230000003068 static Effects 0.000 claims description 18
- 239000011148 porous materials Substances 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 6
- 238000005065 mining Methods 0.000 claims description 4
- 238000000034 methods Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 239000011435 rock Substances 0.000 abstract description 7
- 230000003313 weakening Effects 0.000 abstract description 2
- 230000035699 permeability Effects 0.000 abstract 2
- 239000011499 joint compounds Substances 0.000 abstract 1
- 238000002791 soaking Methods 0.000 abstract 1
- 239000010410 layers Substances 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 5
- 230000002265 prevention Effects 0.000 description 4
- 238000005516 engineering processes Methods 0.000 description 3
- 238000006073 displacement reactions Methods 0.000 description 2
- 280000370113 Mines companies 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 238000000418 atomic force spectrum Methods 0.000 description 1
- 238000002485 combustion reactions Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002269 spontaneous Effects 0.000 description 1
Abstract
Description
Technical field
The present invention relates to the method and apparatus of a kind of colliery extinction, especially a kind ofly make coal seam weakening strength, anti-reflection, extinction, subtract causing of dirt and split the method and apparatus that the coal seam subtracts the dirt extinction based on waterpower.
Background technology
Control, the reduction of hard top coal are pressed in the coal mine impact ore deposit, the coal containing methane gas layer is anti-reflection, coal and gas outburst prevention treatment and subtract the major issue that dirt is progress of coal mining always.For overcoming the above problems, existing method action effect is single, can not accomplish impulsion pressure control, the reduction of hard top coal, the coal containing methane gas layer is anti-reflection, coal and gas outburst prevention treatment and subtract the integrated control of dirt.For example traditional gas pumping method is just beaten intensive long drilled holes in coal rock layer, just direct then mash gas extraction, and it is dark and very close to hole, and causes construction loaded down with trivial details, and the extraction effect is very undesirable, effectively integrated control.Also had for example and adopt coal-bed flooding to prevent and treat the method that press in the coal mine impact ore deposit, the water injection pressure effect and not obvious that causes less than normal, it is poorer to subtract the dirt effect.
Summary of the invention
Technical problem: the objective of the invention is to the problem that exists in the prior art; Provide a kind of method simple, easy to operate, controlled good; Safe and reliable, control is pressed in effective coal mine impact ore deposit, the coal containing methane gas layer is anti-reflection, coal and gas outburst prevention treatment and subtract incorporate method and apparatus such as dirt.
Technical scheme: of the present invention causing based on waterpower split the method that the coal seam subtracts the dirt extinction, comprises the steps:
A. according to the required time of punching pressure break, mash gas extraction, the moistening softening process of coal body and the actual fltting speed of work plane, confirm to cause the distance of leading rib when splitting drilling construction;
B. the hole of in coal mining tailentry road, in the work plane coal body, drilling successively, the degree of depth of boring is no less than 1/2 of coal-getter's face length degree, in boring, places high-pressure rubber pipe then, and the installation hole packer carries out sealing of hole apart from hell 8～10 m places;
C. utilize high-pressure pump in boring, to carry out the pulsed high pressure water injection, coal body is carried out waterpower cause and split, make and produce a large amount of hydraulic fracture in the coal body through high-pressure rubber pipe;
D. after waterpower causes and splits completion, in puddle mixer, add fine sand earlier, after add coarse sand, utilize the water sand pump that sand water fluid-mixing is transported in the hydraulic fracture through sand delivering pipeline;
E. after annotating the sand completion, with after the aperture direction moves 2～3m, carrying out sealing of hole once more after the hole packer release, avoid waterpower to cause the influence in crack, the place connects the gas drainage under suction pipeline in the aperture, carries out draining and gas pumping;
F. after gas pumping is accomplished; Pull down the gas pumping pipeline from hole packer; Connect the static pressure water injecting pipeline to waterpower cause split with gas pumping after coal body carry out the static pressure water filling, the aperture water pressure that requires the static pressure water filling is more than or equal to critical pore water pressure and waterpower pad value sum;
G. when coal-face is advanced into distance first boring 3～5m place, stop water filling, accomplishes a waterpower and cause and split the coal seam and subtract the dirt extinction and circulate, repeating step b, c, d, e, f are until the exploitation of the whole coal-face of completion.
The pressure of said pulsed high pressure water injection is 20～30 MPa; Described static pressure water injection pressure is 2～3 MPa.
Cause the equipment that the coal seam subtracts the dirt extinction that splits based on waterpower; Comprise hole packer; Also comprise the high-pressure pump, water sand pump and the puddle mixer that are laid in the return aircourse, be connected with the high-pressure rubber pipe that inserts in the boring on the high-pressure pump, be connected to real-time display monitoring appearance of flow/pressure and pressure-relief valve on the high-pressure rubber pipe; Puddle mixer is provided with water inlet pipe and sand inlet, and puddle mixer is connected with the water sand pump through sand delivering pipeline, is connected to flow detector and pressure-relief valve on the sand delivering pipeline.
Beneficial effect: the present invention can effectively prevent and treat the coal mine impact ore deposit pressure accident in the fracturing scope; Through carrying out gas pumping after the pulsed high pressure water injection pressure break again; And then cause through waterpower and to carry out the static pressure water filling after splitting, compared with present technology, it is effective that coal-bed flooding subtracts dirt; Can remove numerous hidden danger of safety of coal mines in advance, the spontaneous combustion of prevention coal is got angry also has good effect in addition.For the ore deposit press control, the reduction of hard top coal, the coal containing methane gas layer is anti-reflection, aspects such as dirt are given prominence to, subtracted to control coal and gas, result of use is good, the gas pumping amount is remarkable, has the benefit of achieving many things at one stroke.Its technology is simple, and is controlled good, and easy construction is safe and reliable, effective, has practicality widely.
Description of drawings
Fig. 1 is that of the present invention causing based on waterpower split the coal seam and subtracted dirt extinction method sketch map.
Fig. 2 is that of the present invention causing based on waterpower split the device structure sketch map that the coal seam subtracts the dirt extinction.
Fig. 3 is that of the present invention causing based on waterpower split the principle schematic that the coal seam subtracts dirt extinction method.
Fig. 4 is a coal and rock pore water pressure curve map of the present invention.
Among the figure: the 1-hole packer; The 2-pressure-relief valve; The real-time display monitoring appearance of 3-flow/pressure; The 4-high-pressure rubber pipe; The 5-pressure meter; 6-water sand pump; The 7-flow detector; The 8-puddle mixer; The 8-1-agitator; The 8-2-sand inlet; 9-boring; The 10-coal body; The 11-water inlet pipe; 12-puddle mixer motor; The 13-high-pressure pump; The 14-sand delivering pipeline; 15-water sand pump motor; A-air intake lane; The b-return aircourse; C-tunnel relaxation zone radius; Sealed borehole length when d-gas pumping or static pressure water filling; E-hole packer displacement; The f-sealed borehole length; The g-hydraulic fracture; The h-drilling depth; P-critical pore water pressure; X-causes the distance of leading rib when splitting drilling construction; W-waterpower causes splits hole sealing depth; The v-spacing of wells.
The specific embodiment
As shown in Figure 1, the average thickness of certain pit coal layer is 15m, and the hardness in coal seam is 3, and seam inclination is 11 °, and the coal seam buried depth is 550m, and active length is 168m, adopts the top coal caving method to mine, and taking and placing are than 1:2.5, and top board is a sandstone, and the hardness of sandstone is 6.According to the required time of the moistening operation such as softening of punching pressure break, mash gas extraction, coal body and the actual fltting speed of work plane, what confirm to cause leading rib when splitting drilling construction is 20m apart from x; In the tailentry road b apart from base plate 1.5m place along coal body 10 tendencies play the boring 9 that length is 130m; The degree of depth of boring 9 is no less than 1/2 of coal-getter's face length degree; Bore diameter is 75mm; Spacing of wells v is 16m, and the place couples together high-pressure rubber pipe 4 and the real-time display monitoring appearance 3 of flow/pressure in the aperture, carries out flow/pressure and shows monitoring in real time; Waterpower causes that sealing of hole segment length d+ hole packer displacement e+ waterpower causes the sealing of hole degree f when splitting water filling when splitting hole sealing depth=roadway surrounding rock relaxation zone radius c+ mash gas extraction or static pressure water filling; Drawing the hole sealing depth that waterpower causes when splitting is 8～10m; Put into high-pressure rubber pipe 4 in 9 approximately to 1/2 place of hole depth to boring then; And apart from hell 8～10 m places hole packer 1 is installed and is carried out conventional sealing of hole; Inject water under high pressure with high-pressure pump 13 through high-pressure rubber pipe 4 pulsed in boring 9 afterwards, the pressure of pulsed high pressure water injection is 20～30 MPa, when the real-time display monitoring appearance 3 demonstration flows of flow/pressure increase considerably, when pressure reduces significantly; The real-time display monitoring appearance 3 of flow/pressure can feed back to high-pressure pump 13 to order according to the parameter of flow, pressure setting, and high-pressure pump 13 stops water filling.Through high pressure water injection coal and rock 10 is carried out waterpower and cause and split, make and produce a large amount of hydraulic fracture g in the coal and rock 10; After waterpower causes and splits completion; Remove high-pressure rubber pipe 4 from hole packer 1, in boring 9, put into sand delivering pipeline 14 then, through adding fine sand in the puddle mixer 8 earlier; After add coarse sand; Utilize water sand pump 6 that sand water fluid-mixing is transported among the hydraulic fracture g through sand delivering pipeline 14, when the pressure value of pressure meter 5 demonstrations rises sharply, stop to annotate sand.Accomplish and annotate after the sand; Hole packer 1 release, the aperture direction is carried out sealing of hole once more after moving 2～3m; The sealing of hole segment length f of hole packer 1 should be greater than the extension length (extension length universal experience value be 1.5m) of hydraulic fracture in the sealing of hole section, avoids waterpower to cause the influence in crack, and is as shown in Figure 3.The place connects the gas drainage under suction pipeline in the aperture, carries out draining and gas pumping; After gas pumping is accomplished; Pull down the gas pumping pipeline from hole packer 1; Connect the static pressure water injecting pipeline to waterpower cause split with gas pumping after coal body 10 carry out the static pressure water filling, as shown in Figure 4, confirm critical pore water pressure p according to the peak value flex point of coal and rock pore water pressure force curve; Owing in boring, there is the water pressure decay; So need satisfy the static pressure water filling in the water pressure in aperture more than or equal to critical pore water pressure p and waterpower pad value sum, thereby when confirming the static pressure water filling in the water pressure value in aperture, the water pressure value in the aperture during static pressure water filling is generally 2～3 MPa.When coal-face is advanced into the distance boring 3～5m of 9 places, stop water filling, accomplishes a waterpower and cause and split the coal seam and subtract the dirt extinction and circulate.Next boring 9 is played in continuation in work plane coal body 10; Repeat said process, accomplish next waterpower and cause and split the coal seam and subtract dirt extinction circulation, along with the continuous propelling of work plane; The waterpower of accomplishing whole coal-face causes to be split the coal seam and subtracts dirt extinction circulation, finishes until the coal mining of coal-face.Water sand pump 6 is connected with sand delivering pipeline 14 passes hole packer 1 and deliver to boring and annotate sand in 9; After accomplishing notes sand hole packer 1 release is carried out sealing of hole once more after the aperture direction moves 2～3m, connection gas drainage under suction pipeline carries out draining and draws out methane; After gas pumping is accomplished, pull down the gas pumping pipeline from hole packer 1, connect the static pressure water injecting pipeline to waterpower cause split with gas pumping after coal body 10 carry out the static pressure water filling and when coal-face is advanced into the distance boring 3～5m of 9 places, stop water filling.
As shown in Figure 2; The present invention is based on waterpower and cause the equipment that the coal seam subtracts the dirt extinction that splits; Mainly constitute by hole packer 1, the high-pressure pump 13, water sand pump 6 and the puddle mixer 8 that are laid in the b of return aircourse; Be connected with the high-pressure rubber pipe 4 that inserts in the boring 9 on the high-pressure pump 13, be connected to real-time display monitoring appearance 3 of flow/pressure and pressure-relief valve 2 on the high-pressure rubber pipe 4; Puddle mixer 8 mainly is made up of the puddle mixer motor 12 of agitator 8-1, control agitator 8-1, and puddle mixer 8 is provided with water inlet pipe 11 and sand inlet 8-2, on the water inlet pipe 11 by-pass valve control is arranged.Puddle mixer 8 is connected with water sand pump 6 through sand delivering pipeline 14, is connected to flow detector 7 and pressure-relief valve on the sand delivering pipeline 14.Be furnished with water sand pump motor 15 and water sand pump pressure table 5 on the water sand pump 6.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100997914A CN102182499B (en) | 2011-04-21 | 2011-04-21 | Hydrofracturing-based method and equipment for diminishing dust and eliminating outburst of coal bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100997914A CN102182499B (en) | 2011-04-21 | 2011-04-21 | Hydrofracturing-based method and equipment for diminishing dust and eliminating outburst of coal bed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102182499A CN102182499A (en) | 2011-09-14 |
| CN102182499B true CN102182499B (en) | 2012-11-14 |
Family
ID=44568777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100997914A CN102182499B (en) | 2011-04-21 | 2011-04-21 | Hydrofracturing-based method and equipment for diminishing dust and eliminating outburst of coal bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102182499B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2547873C1 (en) * | 2013-12-10 | 2015-04-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный минерально-сырьевой университет "Горный" | Method of stimulation of coal bed through wells drilled from excavations |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2520669C1 (en) * | 2013-03-12 | 2014-06-27 | Федеральное государственное бюджетное учреждение науки Институт горного дела им. Н.А. Чинакала Сибирского отделения Российской академии наук | Coal seam degassing |
| CN103541711B (en) * | 2013-10-21 | 2016-04-13 | 中国矿业大学 | Xuan Ding small-bore, coal-face termination hydraulic fracture control method |
| RU2540709C1 (en) * | 2013-12-10 | 2015-02-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный минерально-сырьевой университет "Горный" | Method of shock wave destruction of coal seam through wells drilled from excavation |
| CN104594901B (en) * | 2014-12-08 | 2016-05-25 | 太原理工大学 | A kind of working face is invaded the method in district by igneous rock |
| CN105003294B (en) * | 2015-07-30 | 2017-09-29 | 山东科技大学 | One kind is based on hydrothermal reaction coupling pressure break coal body coal uncovering method |
| CN105422164B (en) * | 2015-12-14 | 2018-03-06 | 河南理工大学 | Hydrofracturing is anti-reflection to aid in coal seam efficient water injection method and apparatus |
| CN105649625B (en) * | 2016-01-15 | 2017-11-21 | 山东科技大学 | A kind of high-low pressure subregion fracturing anatonosis formula coal-bed flooding method |
| CN106703871B (en) * | 2017-02-06 | 2019-03-01 | 华北科技学院 | A kind of method of high pressure water injection prevention and treatment gas and coal dust |
| CN106907175B (en) * | 2017-05-02 | 2019-06-04 | 中国矿业大学 | The efficient extraction coal roadway stripe gas of bottom plate concordant long drilled holes staged fracturing and region outburst elimination method |
| CN108266222A (en) * | 2018-01-10 | 2018-07-10 | 中国矿业大学 | A kind of solvent extraction, moistening reversion, pulsation pressure break Trinity coal body anti-reflection method |
| CN110130826A (en) * | 2019-07-01 | 2019-08-16 | 中煤新集能源股份有限公司 | A kind of complete method of underground mine Driving Face in Coal Tunnel synthesis dust prevention |
| CN110617102A (en) * | 2019-10-08 | 2019-12-27 | 刘云山 | Method for quickly releasing gas in coal mine underground high-pressure water injection fracturing coal seam |
| CN111197497A (en) * | 2020-03-04 | 2020-05-26 | 淮南矿业(集团)有限责任公司 | Rock cross-cut coal uncovering high-pressure hydraulic punching comprehensive permeability increasing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575983A (en) * | 2009-02-27 | 2009-11-11 | 河南省煤层气开发利用有限公司 | Directional fracturing permeability improvement outburst elimination method in coal mine and device thereof. |
| CN101718191A (en) * | 2009-08-27 | 2010-06-02 | 中国矿业大学 | Directional cracking method for waterpower slotting |
| CN101824982A (en) * | 2010-04-19 | 2010-09-08 | 中国矿业大学 | Coal bed gas drainage effective radius measuring method |
| CN101956546A (en) * | 2010-09-14 | 2011-01-26 | 中国矿业大学 | Method for improving crossing-hole gas extraction concentration |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8424599B2 (en) * | 2007-03-29 | 2013-04-23 | Fracmaster, Llc | Automated closed loop flowback and separation system |
| US20110030963A1 (en) * | 2009-08-04 | 2011-02-10 | Karl Demong | Multiple well treatment fluid distribution and control system and method |
| US8171993B2 (en) * | 2009-09-18 | 2012-05-08 | Heat On-The-Fly, Llc | Water heating apparatus for continuous heated water flow and method for use in hydraulic fracturing |
-
2011
- 2011-04-21 CN CN2011100997914A patent/CN102182499B/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575983A (en) * | 2009-02-27 | 2009-11-11 | 河南省煤层气开发利用有限公司 | Directional fracturing permeability improvement outburst elimination method in coal mine and device thereof. |
| CN101718191A (en) * | 2009-08-27 | 2010-06-02 | 中国矿业大学 | Directional cracking method for waterpower slotting |
| CN101824982A (en) * | 2010-04-19 | 2010-09-08 | 中国矿业大学 | Coal bed gas drainage effective radius measuring method |
| CN101956546A (en) * | 2010-09-14 | 2011-01-26 | 中国矿业大学 | Method for improving crossing-hole gas extraction concentration |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2547873C1 (en) * | 2013-12-10 | 2015-04-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный минерально-сырьевой университет "Горный" | Method of stimulation of coal bed through wells drilled from excavations |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102182499A (en) | 2011-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101403314B (en) | Coal mine down-hole drilling hydraulic fracturing anti-reflection mash gas extraction technique | |
| US6123394A (en) | Hydraulic fracturing of ore bodies | |
| CA2543886C (en) | Multiple azimuth control of vertical hydraulic fractures in unconsolidated and weakly cemented sediments | |
| CN102493822B (en) | Method for performing curtain grouting construction on tunnel by water rich fault influence zone | |
| US4915452A (en) | Hydraulic borehole mining system and method | |
| CN102155254B (en) | Method for extracting gas in low air permeability coal layer by pulse fracture anti-reflection | |
| AU2014336858B2 (en) | Method for enhanced fuel gas extraction by coal mine underground gas-liquid dual-phase alternating phase-driven fracturing of coal body | |
| CN104314539B (en) | A kind of heavy crude reservoir foamed artificial oil huff and puff oil recovery method | |
| Sotskov et al. | Investigation of the rock massif stress strain state in conditions of the drainage drift overworking | |
| CN101603431B (en) | Method for reinforcing outburst-prone coal seam cross-cut coal uncovering | |
| US10018025B2 (en) | Hydraulic fracturing system and method | |
| CN101832149B (en) | Method for extracting coal seam gas by underground heat injection | |
| CN102635392B (en) | Co-extraction method for pillar-less coal and gas of advanced entry-retaining construction extraction engineering | |
| CN107642346B (en) | Pilot back-dragging jet mining method and mining device for seabed shallow layer non-diagenetic natural gas hydrate | |
| CN104481574B (en) | A kind of method utilizing high energy acoustic-electric complex technique to improve gas permeability of coal seam | |
| CN103835729B (en) | Deep distance roadway surrounding rock pre grouting from the surface reinforcement process | |
| Buset et al. | Jet drilling tool: cost-effective lateral drilling technology for enhanced oil recovery | |
| CN103133028B (en) | Underground coal seam hydrofracture crack oriented developing method | |
| CN101581231B (en) | Gas drainage method for loosening coal body through cross layer boring and hydraulic fracture | |
| CN103867229B (en) | A kind of coal mine large-mining is dark prevents and treats comprehensive treatment method for water with lower group of coal mining | |
| CN103104222B (en) | Ground peupendicular hole combines extraction coal bed gas method with concordant long drilled holes | |
| CN106948843B (en) | A kind of bilayer multiple-limb concordant bored grouting transformation dual limestone aquifer method of roof and floor | |
| CN107916953A (en) | Gas drainage system, pumping method and construction technology based on roof horizontal drilling | |
| CN102733789B (en) | Staged fracturing construction yield increment method for waterpower in deep thickened oil deposit thick-bedded sandstone storage layer | |
| CN102140901A (en) | High pressure resistant drilled hole sealing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |