CN104389529A - Deep hole gas phase fracturing pipe multi-stage connecting device - Google Patents
Deep hole gas phase fracturing pipe multi-stage connecting device Download PDFInfo
- Publication number
- CN104389529A CN104389529A CN201410608746.0A CN201410608746A CN104389529A CN 104389529 A CN104389529 A CN 104389529A CN 201410608746 A CN201410608746 A CN 201410608746A CN 104389529 A CN104389529 A CN 104389529A
- Authority
- CN
- China
- Prior art keywords
- pressure break
- sealing device
- hole
- gas phase
- push rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004047 hole gas Substances 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 40
- 239000003245 coal Substances 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 16
- 230000000694 effects Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000011435 rock Substances 0.000 abstract description 4
- 238000004880 explosion Methods 0.000 description 5
- 241000209094 Oryza Species 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/006—Production of coal-bed methane
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Geophysics (AREA)
- Measuring Fluid Pressure (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a deep hole gas phase fracturing pipe multi-stage connecting device. The device comprises two or more than two gas phase fracturing pipes, a connecting buffer, a hole sealing device, a push rod and a fixing device; the connecting buffer connects a plurality of fracturing pipes together; the hole sealing device comprises one to three sections; the fracturing pipe at the most front end is connected with the tail end of the hole sealing device; the front end of the hole sealing device is connected with the push rod; the push rod is connected with the fixing device; a pressure testing instrument is arranged in the hole sealing device. According to the device, the fracturing pipes in different models can be fractured in coal rocks under the different geological conditions, the device is high in adaptability, and the pressure in a borehole can be monitored.
Description
Technical field
The present invention relates to fracturing unit link technique field, be specifically related to a kind of deep hole gas phase pressure break pipe multi-stage connector, belong to mining technique field.
Background technology
Cryogenic gas explosion fracturing technique has begun one's study and has come into operation abroad last century, it is safe and efficient, easy to use, simple to operate, the energy of explosion easily obtains the feature controlled, be widely used in Blasting In Geotechnical, underwater demolition, the block clearing of cement industry, the explosion etc. of mineral industry, and achieve good effect.But external gas blast technology is single tube explosion, and blast hole depth is more shallow, the corollary equipment that there is no need for the large-scale pressure break explosion of deep hole and linkage.Although the domestic equipment also having gas pressure break at present, also has a lot of imperfection part.
First, domestic fracturing unit model is single, and can not carry out pressure break to the rock stratum, coal seam of different pressure break casts number under different geological conditionss, applicability is not strong.Secondly, when domestic equipment carries out pressure break, the degree of depth is more shallow, and domestic fracturing unit can not be monitored the pressure in boring, and the fracturing unit connected is pushed into boring depths, is only inadequate by manual feed, also needs certain propulsion plant.Domestic propulsion plant can not be advanced to enough degree of depth.
Based on above problem, the invention reside in and a kind of deep hole gas phase pressure break pipe multi-stage connector is provided, it can carry out pressure break to the rock stratum, coal seam of different pressure break casts number under different geological conditionss, applicability is strong, and can the pressure in boring be monitored, the fracturing unit connected can be pushed into the dark position of 20-100 rice, even darker.Connection buffer of the present invention not only connects simply, easy to operate, time saving and energy saving, and in fracturing process, can play cushioning effect to pressure break pipe.
Summary of the invention
For the problems referred to above, the invention provides a kind of deep hole gas phase pressure break pipe multi-stage connector, it comprises 2 and above gas phase pressure break pipe, connect snubber, hole sealing device, push rod and fastening devices, it is characterized in that, many pressure break pipes link together by described connection snubber, described hole sealing device is 1-3 section, pressure break pipe is foremost connected with the end of described hole sealing device, the front end of described hole sealing device is connected with push rod, described push rod is connected with described fastening devices, the pressure break pipe connected and hole sealing device can be pushed into desired depth position by described push rod, described fastening devices is used for carrying out reinforcing to pressure break pipe and fixes, described hole sealing device can by the gases at high pressure shutoff after ignition in deep hole, realize sealing of hole, described hole sealing device inside is provided with piezometry instrument, to monitor in real time the gas pressure in hole.
As preferably, in order to realize playing cushioning effect to pressure break pipe in fracturing process, in described connection snubber, be provided with valve rubber or spring, to reduce in fracturing process, the mutual collision effect between pressure break pipe.
As preferably, described fastening devices can according to actual needs, be connected with the rig outside hole, coal wall by this deep hole gas phase pressure break pipe multi-stage connector.
As preferably, described fastening devices, push rod, hole sealing device are cylindric.
In order to improve the accuracy of life-span of this deep hole gas phase pressure break pipe multi-stage connector, reliability and connection, described push rod and described fastening devices all adopt the material of high rigidity, high strength and high-wearing feature to make.
A kind of deep hole gas phase pressure break pipe multi-stage connector provided by the invention, it can carry out pressure break to the rock stratum, coal seam of different pressure break casts number under different geological conditionss, applicability is strong, the pressure break pipe of many can be connected, the deep hole pressure break of more than 20 meters different depths can be reached, and can the pressure in boring be monitored, the fracturing unit connected can be pushed into the dark position of 20-100 rice, even darker.Connection buffer of the present invention not only connects simply, easy to operate, time saving and energy saving, and in fracturing process, can play cushioning effect to pressure break pipe, in a word, tool of the present invention has an enormous advantage, and applicability is strong, simple to operate, easy to use, time saving and energy saving, safe and effective.
Accompanying drawing explanation
Fig. 1 is connection diagram of the present invention;
In figure: 1. fastening devices 2. push rod 3. hole sealing device 4. pressure break pipe 5. connects snubber.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 1, the invention provides a kind of deep hole gas phase pressure break pipe multi-stage connector, it comprises 2-40 root gas phase pressure break pipe 4, connect snubber 5, hole sealing device 3, push rod 2 and fastening devices 1, connect snubber 5 2-40 root pressure break pipe 4 is linked together, hole sealing device 3 is 1-3 section, pressure break pipe 4 is foremost connected with the end of hole sealing device 4, the front end of hole sealing device 4 is connected with push rod 2, push rod 2 is connected with fastening devices 1, the pressure break pipe 4 connected and hole sealing device 3 can be pushed into the position that the degree of depth is 20-100 rice by push rod 2, fastening devices 1 is fixed for carrying out reinforcing to pressure break pipe 4, hole sealing device 3 can by the gases at high pressure shutoff after ignition in deep hole, realize sealing of hole, hole sealing device 3 inside is provided with piezometry instrument (not shown), to monitor in real time the gas pressure in hole.Hole sealing device of the present invention can be placed on (hole sealing depth under different condition is different) in the certain degree of depth of boring according to the needs of actual conditions, seal with 1-3 section hole sealing device, ensure that good sealing effectiveness, make the gas after ignition can act on hole wall for a long time, reach the fracturing effect of expection, and in hole sealing device in deep hole gas phase fracturing unit, piezometry instrument is installed, this is innovation specific to the present invention, unexistent in other press devices domestic and international, piezometry instrument can carry out check and evaluation to the pressure in hole, ensure safety and the validity of pressure break.
In the present embodiment, in order to realize playing cushioning effect to pressure break pipe in fracturing process, connecting in snubber 5 and being provided with valve rubber or spring (not shown), to reduce in fracturing process, the mutual collision effect between pressure break pipe.The present invention can connect 2-40 root pressure break pipe and dismounting quickly and easily by connecting snubber 5, can play cushioning effect in fracturing process between the pressure break pipe connected simultaneously.Fastening devices 1 can according to actual needs, be connected with the rig outside hole, coal wall by this deep hole gas phase pressure break pipe multi-stage connector.
In addition, fastening devices 1, push rod 2, hole sealing device 3 are cylindric.
In order to improve the accuracy of life-span of this deep hole gas phase pressure break pipe multi-stage connector, reliability and connection, push rod 2 and fastening devices 1 all adopt the material of high rigidity, high strength and high-wearing feature to make.
In use, first, with connecting snubber 5,2-40 root pressure break pipe 4 is connected, the pressure break pipe 4 connected is pushed in the deep hole of certain degree of depth by push rod 2, and hole sealing device 3 seals the pressure break pipe in boring, by the gases at high pressure shutoff after ignition in hole, prevent gas leak, extend gas to the action time of hole wall, the piezometry instrument simultaneously in hole sealing device 3 carries out Real-Time Monitoring to the pressure in hole, and the fracturing unit connected in fastening devices 1 pair of hole is fixed effect.
The foregoing is only the preferred embodiments of the present invention, be not limited to the detailed description of the invention of the present embodiment, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a deep hole gas phase pressure break pipe multi-stage connector, it comprises 2 and above many gas phase pressure break pipes, connect snubber, hole sealing device, push rod and fastening devices, it is characterized in that, many pressure break pipes link together by described connection snubber, described hole sealing device is 1-3 section, pressure break pipe is foremost connected with the end of described hole sealing device, the front end of described hole sealing device is connected with push rod, described push rod is connected with described fastening devices, the pressure break pipe connected and hole sealing device can be pushed into desired depth position by described push rod, described fastening devices is used for carrying out reinforcing to pressure break pipe and fixes, described hole sealing device can by the gases at high pressure shutoff after ignition in deep hole, realize sealing of hole, described hole sealing device inside is provided with piezometry instrument, to monitor in real time the gas pressure in hole.
2. a kind of deep hole gas phase pressure break pipe multi-stage connector according to claim 1, is characterized in that, be provided with valve rubber or spring in described connection snubber, to reduce in fracturing process, and the mutual collision effect between pressure break pipe.
3. a kind of deep hole gas phase pressure break pipe multi-stage connector according to claim 1, it is characterized in that, described fastening devices is connected with the rig outside hole, coal wall.
4. a kind of deep hole gas phase pressure break pipe multi-stage connector according to claim 3, it is characterized in that, described fastening devices, push rod, hole sealing device are cylindric.
5. a kind of deep hole gas phase pressure break pipe multi-stage connector according to any one of claim 1-4, it is characterized in that, described push rod and described fastening devices all adopt the material of high rigidity, high strength and high-wearing feature to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410608746.0A CN104389529A (en) | 2014-10-31 | 2014-10-31 | Deep hole gas phase fracturing pipe multi-stage connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410608746.0A CN104389529A (en) | 2014-10-31 | 2014-10-31 | Deep hole gas phase fracturing pipe multi-stage connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104389529A true CN104389529A (en) | 2015-03-04 |
Family
ID=52607478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410608746.0A Pending CN104389529A (en) | 2014-10-31 | 2014-10-31 | Deep hole gas phase fracturing pipe multi-stage connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104389529A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003242A (en) * | 2015-08-19 | 2015-10-28 | 山西鸿海科贸有限公司 | Device capable of increasing fractures of coal-bed gas well |
| CN105370256A (en) * | 2015-10-15 | 2016-03-02 | 山东科技大学 | Method for increasing wetting radius of high-pressure water injection of low-air-permeability coal seams through sectioned pre-splitting |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1484977A1 (en) * | 1987-02-05 | 1989-06-07 | Vostoch Nii Bezopasnosti | Device for sealing holes |
| CN101813002A (en) * | 2010-04-26 | 2010-08-25 | 张海成 | Coal seam pre-splitting method based on gas extraction |
| CN102287221A (en) * | 2011-09-12 | 2011-12-21 | 张海成 | Hole-sealing device used for CO2 gas extraction device |
| CN102359391A (en) * | 2011-09-12 | 2012-02-22 | 张海成 | Coal bed presplitting device |
| CN202215190U (en) * | 2011-09-12 | 2012-05-09 | 张海成 | Hole-sealing connecting rod for CO2 gas exploitation device |
| CN202215224U (en) * | 2011-09-12 | 2012-05-09 | 张海成 | Connector for CO2 gas mining devices |
| CN202228108U (en) * | 2011-09-12 | 2012-05-23 | 张海成 | Push-and-pull fixing device for carbon dioxide (CO2) gas exploitation device |
| CN204402379U (en) * | 2014-10-31 | 2015-06-17 | 河南神华能源工程有限公司 | A kind of deep hole gas phase pressure break pipe multi-stage connector |
-
2014
- 2014-10-31 CN CN201410608746.0A patent/CN104389529A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1484977A1 (en) * | 1987-02-05 | 1989-06-07 | Vostoch Nii Bezopasnosti | Device for sealing holes |
| CN101813002A (en) * | 2010-04-26 | 2010-08-25 | 张海成 | Coal seam pre-splitting method based on gas extraction |
| CN102287221A (en) * | 2011-09-12 | 2011-12-21 | 张海成 | Hole-sealing device used for CO2 gas extraction device |
| CN102359391A (en) * | 2011-09-12 | 2012-02-22 | 张海成 | Coal bed presplitting device |
| CN202215190U (en) * | 2011-09-12 | 2012-05-09 | 张海成 | Hole-sealing connecting rod for CO2 gas exploitation device |
| CN202215224U (en) * | 2011-09-12 | 2012-05-09 | 张海成 | Connector for CO2 gas mining devices |
| CN202228108U (en) * | 2011-09-12 | 2012-05-23 | 张海成 | Push-and-pull fixing device for carbon dioxide (CO2) gas exploitation device |
| CN204402379U (en) * | 2014-10-31 | 2015-06-17 | 河南神华能源工程有限公司 | A kind of deep hole gas phase pressure break pipe multi-stage connector |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003242A (en) * | 2015-08-19 | 2015-10-28 | 山西鸿海科贸有限公司 | Device capable of increasing fractures of coal-bed gas well |
| CN105370256A (en) * | 2015-10-15 | 2016-03-02 | 山东科技大学 | Method for increasing wetting radius of high-pressure water injection of low-air-permeability coal seams through sectioned pre-splitting |
| CN105370256B (en) * | 2015-10-15 | 2018-09-21 | 山东科技大学 | A method of segmentation presplitting improves low air permeability coal seam high pressure water injection radius of wetted bulb |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102678117B (en) | Directional hydraulic fracturing method based on energizing blasting | |
| CN104061014B (en) | A kind of coal seam anti-reflection experimental device based on high electric field pulse | |
| CN103334790B (en) | Based on the roof Advance presplitting method of high pressure pneumatic component | |
| CN110195580B (en) | Gas-liquid two-phase combined coal bed permeability increasing method | |
| CN103806934A (en) | High-stress low-porosity coal bed presplitting permeability-increase methane drainage system and method | |
| AU2014336858A1 (en) | Method for enhanced fuel gas extraction by coal mine underground gas-liquid dual-phase alternating phase-driven fracturing of coal body | |
| CN201757686U (en) | Hydraulic fracturing crustal stress measuring apparatus | |
| CN203891922U (en) | Effective extraction system for gas in coal seam | |
| CN103924956A (en) | Advanced pre-splitting method for lump coal mining | |
| CN201671622U (en) | Coal mine cover rock water guide slit band uphole observation instrument | |
| CN204984343U (en) | Split combined type bag hole sealing device | |
| CN102937011A (en) | Secondary grouting and plugging device and method of regional crack field of gas extraction and drilling group | |
| CN204101748U (en) | Combined type impulsion pressure hazardous location seismic tomography prospecting fluid pressure type self compensation vibroseis | |
| AU2018412370A1 (en) | A long-distance drilling and hydrofracturing integrated device and method in underground mine | |
| CN110259465A (en) | A kind of method that list shield double mode TBM pre-grouting reinforces fault belt | |
| CN104389529A (en) | Deep hole gas phase fracturing pipe multi-stage connecting device | |
| CN204402379U (en) | A kind of deep hole gas phase pressure break pipe multi-stage connector | |
| CN201277040Y (en) | Expansion cracking apparatus | |
| Yang et al. | Coupling model of stress-damage-flow and its application to the investigation of instantaneous seepage mechanism for gas during unloading in coal seam with depth. | |
| CN205475395U (en) | Special splitter of excavator | |
| Qianhui | Research and application of auger-air drilling and sieve tube borehole protection in soft outburst-prone coal seams | |
| CN204040966U (en) | A kind of drilling sampling device | |
| CN106761901B (en) | Technique and equipment for preventing coal rock dynamic disaster by coal rock mass impact for mine | |
| CN204436381U (en) | Radial type telescopic oscillating device is impacted in a kind of underground mine use fragmentation | |
| CN203685288U (en) | Underground coal mine water exploration drilling water control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150304 |
|
| RJ01 | Rejection of invention patent application after publication |