CN205477570U - Shale atmospheric pressure splits device - Google Patents
Shale atmospheric pressure splits device Download PDFInfo
- Publication number
- CN205477570U CN205477570U CN201620054702.2U CN201620054702U CN205477570U CN 205477570 U CN205477570 U CN 205477570U CN 201620054702 U CN201620054702 U CN 201620054702U CN 205477570 U CN205477570 U CN 205477570U
- Authority
- CN
- China
- Prior art keywords
- fracturing
- drill bit
- shale gas
- ground
- pressure break
- 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.)
- Expired - Fee Related
Links
- 238000005553 drilling Methods 0.000 claims abstract description 13
- 239000004020 conductor Substances 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims abstract 15
- 230000005540 biological transmission Effects 0.000 claims abstract 2
- 230000004888 barrier function Effects 0.000 claims description 5
- 238000013270 controlled release Methods 0.000 claims 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 2
- 239000001569 carbon dioxide Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a shale atmospheric pressure splits device mainly includes integrated control system, the ground fracturing unit, and the directional control module, directional rig, fracturing pump and shale atmospheric pressure split the drill bit, shale atmospheric pressure split the drill bit and include 3 -wing bit, high -pressure conductance pipe, directional control system, electromagnetism numerical control valve, conductor wire and insulating layer and turn to the joint, the device during operation passes through 3 -wing bit and a steering system precession to target location, and the rig stops the back, again by fracturing directional control transmission system azimuth information, and the direction and the concrete position of decision fracturing. The fracturing system passing through gases fracturing pump on ground produces super high pressure carbon dioxide gas, carries to the drill bit side, again by electromagnetism numerical control valve control fracturing state through the inside high -pressure conductance pipe of laying in drilling rod one side to accomplish the fracturing task.
Description
Technical field
This utility model relates to shale gas fracturing technique field, in particular to a kind of shale gas fracturing device.
Background technology
In current shale gas pressure break recovery process, using vertically or horizontally drilling well to be aided with the complicated machineries such as fracturing packer, sliding sleeve, drillable press-fracturing bridge plug to have cooperated large-area pressure break task, lack simple and low cost creeps into pressure break recovery method more.Technical conditions now are more suitable for large-scale, the region-type exploitation of high investment, but it is insufficient or in the case of having pressure break dead angle running into pressure break first, use existing mode to exploit again can lose more than gain undoubtedly, and fracturing effect is not good enough, the conventional operation flow process creeping into backed off after random pressure break more also can expend more time and cost, delays project progress.
The character of shale gas exploitation itself determines FRACTURING DESIGN and have to be limited with crustal stress by intrinsic fracture, and on the vertical often in several main shafts of the pressure break position in design, and these positions are difficult to obtain good fracturing effect by traditional method.So need not splendid fracturing effect or pressure break target is in ad-hoc location, pressure break position in the case of main shaft farther out many, it is desirable to there is the most extensive fracturing technique.
In addition, existing hydraulic fracturing technology is required for greatly the massive hydraulic fracturing equipment on ground, fracturing effect and exploitation effect are also far away from gas fracturing technique, and air pressure splits the advantage self possessed and good development prospect makes it receive much concern, and are the main trend of shale gas exploitation from now on.
Therefore, the exploitation suitability is strong, low cost and flexible and changeable shale gas fracturing unit must be from simple flows, and existing pressure break machinery is reformed by the multi-angle such as flexible break-in.
Summary of the invention
For solving the technical problem existing for prior art, this utility model provides a kind of shale gas fracturing device.
This utility model be the technical scheme is that a kind of shale gas fracturing device includes integrated control system, ground fracturing equipment, direction controlling PLC, directional drilling machine, fracturing pump, shale gas pressure break drill bit etc.；Described shale gas pressure drill bit mainly includes three-wing bit, electromagnetism digital controlled valve, high pressure gas conduit, heading control loop, insulating barrier, rosette, conductor wire.By three-wing bit and supporting steering precession to target location, after rig stops, then transmitted azimuth information by pressure break heading control loop, thus determine direction and the particular location of pressure break.The frac system on ground produces supertension carbon dioxide by gas fracturing pump, is delivered to drill bit side by the high pressure gas conduit of drilling rod side laid inside, controls pressure break state by electromagnetism digital controlled valve, thus completes pressure break task.
The utility model has the advantage of:
1. the shale gas pressure break drill bit structure in this utility model is simple, is integrated with and creeps into and shale gas fracture job.Creep into work and fracture job combines unified, drill bit radiation processes is Tong Bu with fracturing process, save work space, eliminate the manpower and materials changing fracturing unit etc. after creeping in existing method again required by a series of activities flow process, it is possible to complete little scope pressure break task quickly and efficiently.
2. this utility model has simple architectural feature, directional drilling mode and the heading control loop with high level of control, electromagnetic valve digital control system and ground set the integrated system of azimuth information in real time and also make unrestricted, the multi-direction synchronous pressure of out-of-alignment split and be possibly realized, drill bit adapted drilling rod is close with common drilling rod, depth can be increased easily, change drilling direction flexibly, thus expand effective pressure break scope, pinpoint directionally pressure break target location.
3. this shale gas fracturing device has the extremely strong suitability, can be used for solving the problem that the exploitation of little scope shale gas is not thorough or loses more than gain, it is possible to cost completes the work that air pressure splits lower.The drill bit proposed by the present invention is laterally fitted the method for pressure break after pressure break and precession, by drill bit precession to pressure break position, determined pressure break direction by the pressure break heading control loop of drill end and be finely adjusted, send the gas fracturing pump outside instruction unpack electromagnetism digital controlled valve UNICOM, complete shale gas pressure break task, simple, it is simple to control.
Accompanying drawing explanation
Fig. 1 is system diagram of the present utility model；
Fig. 2 is that this utility model core shale gas pressure break drill bit is lateral and vertical magnification sectional view.
In Fig. 2: 1 is three-wing bit, 2 is high pressure gas conduit, 3 heading control loop integrators, and 4 is electromagnetism digital controlled valve, and 5 is conductor wire and insulating barrier, and 6 is the segment of drillpipe linked with drill bit, and 7 is steering connections.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
A kind of shale gas fracturing device, it mainly includes integrated control system, ground fracturing equipment, direction controlling PLC, directional drilling machine, fracturing pump, shale gas pressure break drill bit etc.；Described equipment and system are interconnected, and release news with integrated control system and direction controlling PLC for core and instruct.
Described shale gas pressure break drill bit, it mainly includes three-wing bit 1, high pressure gas conduit 2, heading control loop 3, electromagnetism digital controlled valve 4, conductor wire and insulating barrier 5, the segment of drillpipe 6 linked with drill bit, steering connections 7；Described high pressure gas conduit 2 keeps safe wall thickness, side opening on drill bit 1 takes T-shaped opening and crag UNICOM, by expanding with heat and contract with cold and crag laminating after having crept into, heading control loop 3 and the integrating device of electromagnetism digital controlled valve 4 on drill bit 1 pass through wire and insulating barrier 5 thereof and extraneous UNICOM, and participate in the main motion that drill bit rotates.
The work process of shale gas fracturing device described in the utility model is as follows:
Estimate to connect a number of supporting drilling rod 6 with high pressure gas conduit precession to specifying pressure break position to stop by measuring and calculating, confirmed the position of lateral tubes opening and portraitlandscape drift angle by the heading control loop 3 of built-in gyroscope and be finely adjusted, the electromagnetism digital controlled valve 4 controlled outside three-wing bit 1 UNICOM by ground is opened, split pump installation by high pressure gas conduit 2 UNICOM's drilling rod rear, ground air pressure and be close to the crag of drill bit sidepiece, completing gas fracture job.
The above is preferred embodiment of the present utility model; not in order to limit this utility model; on the premise of without departing from this utility model spirit and scope, this utility model also has various changes and modifications, within these changes and improvements should be included in protection of the present utility model.This utility model claims scope and is defined by appending claims and coordinate.
Claims (2)
1. a shale gas fracturing device, including integrated control system, ground fracturing equipment, direction controlling PLC, directional drilling machine, fracturing pump, shale gas pressure break drill bit；Described shale gas pressure break drill bit is by three-wing bit (1), high pressure gas conduit (2), heading control loop (3), electromagnetism digital controlled valve (4), conductor wire and insulating barrier (5), the segment of drillpipe (6) linked with drill bit, steering connections (7) forms；Gases at high pressure are produced by ground fracturing equipment, and drill end delivered to by the high pressure gas conduit (2) in shale gas pressure break drill bit, are controlled release by electromagnetism digital controlled valve (4) after having crept into, and described shale gas pressure break drill bit is characterized in that:
A () described high pressure gas conduit (2) is arranged on the interior side of three-wing bit (1), being controlled and extraneous UNICOM's situation by electromagnetism digital controlled valve (4) at head, the gas pressure passed through in high pressure gas conduit (2) is 10-100Mpa；
B () described heading control loop (3) is connected with the heading control loop on ground with transmission of location information by cavity and wire guide thereon by conductor wire (5)；
C () described electromagnetism digital controlled valve (4) is connected to perform valve opening and closing instruction with fracturing pump and the rig on ground by cavity and wire guide thereon by conductor wire (5).
2. according to a kind of shale gas fracturing device described in claim 1, it is characterized in that described integrated control system, ground fracturing equipment, direction controlling PLC, directional drilling machine, fracturing pump is interconnected with shale gas pressure break drill bit, releases news with integrated control system and direction controlling PLC for core and instructs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620054702.2U CN205477570U (en) | 2016-01-20 | 2016-01-20 | Shale atmospheric pressure splits device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620054702.2U CN205477570U (en) | 2016-01-20 | 2016-01-20 | Shale atmospheric pressure splits device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205477570U true CN205477570U (en) | 2016-08-17 |
Family
ID=56638862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620054702.2U Expired - Fee Related CN205477570U (en) | 2016-01-20 | 2016-01-20 | Shale atmospheric pressure splits device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205477570U (en) |
-
2016
- 2016-01-20 CN CN201620054702.2U patent/CN205477570U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20200120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |