CN112647918A - Hydraulic pulse reinforced hydraulic fracturing system - Google Patents
Hydraulic pulse reinforced hydraulic fracturing system Download PDFInfo
- Publication number
- CN112647918A CN112647918A CN202011597751.8A CN202011597751A CN112647918A CN 112647918 A CN112647918 A CN 112647918A CN 202011597751 A CN202011597751 A CN 202011597751A CN 112647918 A CN112647918 A CN 112647918A
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- hydraulic pulse
- hydraulic
- pipe
- pulse
- sleeve
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- 230000035939 shock Effects 0.000 claims abstract description 20
- 239000006096 absorbing agent Substances 0.000 claims abstract description 19
- 239000004576 sand Substances 0.000 claims abstract description 16
- 238000005488 sandblasting Methods 0.000 claims abstract description 5
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 abstract description 11
- 238000005553 drilling Methods 0.000 abstract description 8
- 239000011435 rock Substances 0.000 abstract description 4
- 239000002689 soil Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Abstract
The invention relates to a hydraulic pulse reinforced hydraulic fracturing system, in particular to the field of drilling of soil layers or rock strata. The fracturing wellhead device comprises a fracturing wellhead device, a hydraulic pulse manifold pry and a vacuum pump; the fracturing wellhead device is provided with a continuous oil pipe, a sleeve is coated outside the continuous oil pipe, the sleeve is provided with a sand blaster and a plug, the sand blaster is provided with a sand blasting pipe penetrating through the sleeve, the plug seals the bottom of the continuous oil pipe, and the sleeve is symmetrically provided with packers; the hydraulic pulse manifold pry comprises a hydraulic pulse generator, a hydraulic pulse pipe, a gate valve and a shock absorber, wherein the pulse generator, the gate valve, the shock absorber and a vacuum pump are all connected through the hydraulic pulse manifold pry, a fracturing wellhead device is connected with the hydraulic pulse pipe, a check valve is arranged on the hydraulic pulse pipe connected with the vacuum pump, at least one gate valve is arranged on the hydraulic pulse pipe, and at least one shock absorber is further arranged on the hydraulic pulse pipe. The technical problem of how to strengthen the hydraulic fracturing effect is solved to this scheme, is applicable to rock drilling.
Description
Technical Field
The invention relates to the field of drilling of soil layers or rock layers, in particular to a hydraulic pulse reinforced hydraulic fracturing system.
Background
The hydraulic pulse drilling is a new drilling process which utilizes a specific tool to convert the continuous flow in a drilling pipe column into pulse jet flow so as to change the pressure condition of a bottom-hole flow field and further improve the mechanical drilling rate.
However, the current hydraulic fracturing technology generally adopts a static fracturing mode to improve the seepage capability of a reservoir, and has the technical problems of large pump injection, low energy utilization rate and low flowback rate, so that the drilling efficiency is low.
Disclosure of Invention
The technical problem to be solved by the invention is how to strengthen the hydraulic fracturing effect.
The technical scheme for solving the technical problems is as follows: a hydraulic pulse enhanced hydraulic fracturing system comprising:
the hydraulic pulse manifold pry is respectively connected with the fracturing wellhead device and the vacuum pump;
the fracturing wellhead device is provided with a continuous oil pipe, a sleeve is coated outside the continuous oil pipe, the sleeve is provided with a sand blaster and a plug, the sand blaster is provided with a sand blasting pipe penetrating through the sleeve, the plug is filled at the bottom of the sleeve, the plug seals the bottom of the continuous oil pipe, and the sleeve is symmetrically provided with packers;
the hydraulic pulse manifold pry comprises a hydraulic pulse generator, a hydraulic pulse pipe, a gate valve and a shock absorber, wherein the pulse generator, the gate valve, the shock absorber and a vacuum pump are all connected through the hydraulic pulse manifold pry, the fracturing wellhead device is connected with the hydraulic pulse pipe, a check valve is arranged on the hydraulic pulse pipe connected with the vacuum pump, at least one gate valve is arranged on the hydraulic pulse pipe, and at least one shock absorber is further arranged on the hydraulic pulse pipe.
The invention has the beneficial effects that: this scheme provides water to the water pulse manifold sled through the vacuum pump, and rethread hydraulic pulse generator carries out the operation that hydraulic pulse takes place to the water in the water pulse manifold sled, transmits hydraulic pulse to the pit through fracturing wellhead assembly, compares prior art, and this scheme realizes the technological effect of strengthening the hydraulic fracturing effect through setting up water pulse manifold sled and hydraulic pulse.
Furthermore, the number of the packers is four, and the four packers are symmetrically arranged on the sleeves on the upper side and the lower side of the sand blaster.
Through the setting, the packer symmetry sets up the upper and lower both sides at the sand blaster, can make sand blaster and a plurality of packer cooperation use, and the sand blaster communicates construction position shutoff lower floor in proper order from bottom to top to separate the annular space between the layer, can establish the passageway on fracturing fluid and construction layer like this respectively, realizes the layering fracturing effect, makes the fracturing fluid spout the wall of a well fracture step by step.
Furthermore, two shock absorbers are arranged on the hydraulic pulse tube and are installed in the area with the largest deflection on the hydraulic pulse tube.
Through the arrangement, the shock absorber is arranged in the area with the largest deflection on the hydraulic pulse pipe, so that the largest shock absorber load can be obtained, and the best shock absorption effect is achieved. Since if the pipe damper is installed in the region near the nodal point, the damper will not function because of the low vibration velocity.
Compared with the prior art, the scheme has the beneficial effects that:
carry out the operation that hydraulic pulse takes place through hydraulic pulse generator to the water in the hydraulic pulse pipe sled, transmit hydraulic pulse to the pit through fracturing well head device, compare prior art, this scheme realizes the technological effect of strengthening the hydraulic fracturing effect through setting up hydraulic pulse manifold sled and hydraulic pulse generator. The hydraulic pulse that this scheme is effectual provides the hydraulic pulse manifold sled is transmitted to in the pit through fracturing well head device ingeniously, has the efficient effect of saving time.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a hydraulic pulse enhanced hydraulic fracturing system of the present invention.
Detailed Description
Reference numerals in the drawings of the specification include: the fracturing wellhead device comprises a fracturing wellhead device 1, a hydraulic pulse manifold pry 2, a vacuum pump 3, a continuous oil pipe 4, a sleeve 5, a sand blaster 6, a plug 7, a perforation 8, a packer 9, a hydraulic pulse generator 10, a hydraulic pulse pipe 11, a gate valve 12, a shock absorber 13 and a one-way valve 14.
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
The embodiment is basically as shown in the attached figure 1:
the hydraulic pulse enhanced hydraulic fracturing system in the embodiment comprises: the fracturing wellhead device 1, the hydraulic pulse pipe 11 collecting pry 2 and the vacuum pump 3, wherein the hydraulic pulse pipe 11 collecting pry 2 is respectively connected with the fracturing wellhead device 1 and the vacuum pump 3;
the fracturing wellhead device 1 is connected with a continuous oil pipe 4, a sleeve 5 is coated outside the continuous oil pipe 4, a sand blaster 6 and a plug 7 are arranged on the lower side of the sleeve 5, the model of the sand blaster 6 is DQKPS-114, the sand blaster 6 is positioned in the continuous oil pipe 4 below the ground, the left side and the right side of the sand blaster 6 are communicated with sand blasting pipes penetrating through the sleeve 5, and each sand blasting pipe is provided with a perforation 8. The plug 7 is filled in the casing 5 at the bottom of the coiled tubing 4, the plug 7 can be used for sealing the bottom of the coiled tubing 4, the left side and the right side of the casing 5 are symmetrically provided with packers 9, the type of the packer 9 is K344-114, four packers 9 are symmetrically arranged at the upper side and the lower side of the sand blaster 6, and the four packers 9 are all embedded on the casing 5 below the ground;
the hydraulic pulse pipe 11 converges sled 2 and includes hydraulic pulse generator 10, hydraulic pulse pipe 11, slide valve 12 and bumper shock absorber 13, pulse generator, hydraulic pulse pipe 11, slide valve 12, bumper shock absorber 13 and vacuum pump 3 all converge sled 2 through hydraulic pulse pipe 11 and connect, fracturing wellhead assembly 1 is connected with hydraulic pulse pipe 11, be equipped with check valve 14 on the hydraulic pulse pipe that vacuum pump 3 is connected, be equipped with three slide valve 12 on the hydraulic pulse pipe 11, still be equipped with two bumper shock absorbers 13 on the hydraulic pulse pipe 11, bumper shock absorber 13 is installed the biggest region of amount of deflection on hydraulic pulse pipe 11, its antinode promptly.
The working principle of the scheme is as follows: this scheme is through vacuum pump 3 to water pulse pipe 11 receipts sled 2 provide water, and the operation that water in rethread hydraulic pulse generator 10 carried out hydraulic pulse to water in the water pulse pipe 11 sled takes place, transmits hydraulic pulse to the pit through fracturing well head device 1, makes the fluid in the coiled tubing 4 further carry out fracturing breakage to wall of a well four-axis rock. Compared with the prior art, the hydraulic fracturing treatment device has the technical effect that the hydraulic fracturing effect is strengthened by arranging the hydraulic pulse pipe 11 collecting pry 2 and the hydraulic pulse generator 10.
It should be noted that the above embodiments are product embodiments corresponding to the above method embodiments, and for the description of each structural device and the optional implementation in this embodiment, reference may be made to the corresponding description in the above method embodiments, and details are not repeated herein.
The reader should understand that in the description of this specification, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. A hydraulic pulse enhanced hydraulic fracturing system, comprising:
the hydraulic pulse manifold pry is respectively connected with the fracturing wellhead device and the vacuum pump;
the fracturing wellhead device is provided with a continuous oil pipe, a sleeve is coated outside the continuous oil pipe, the sleeve is provided with a sand blaster and a plug, the sand blaster is provided with a sand blasting pipe penetrating through the sleeve, the plug is filled at the bottom of the sleeve, the plug seals the bottom of the continuous oil pipe, and the sleeve is symmetrically provided with packers;
the hydraulic pulse manifold pry comprises a hydraulic pulse generator, a hydraulic pulse pipe, a gate valve and a shock absorber, wherein the pulse generator, the gate valve, the shock absorber and a vacuum pump are all connected through the hydraulic pulse manifold pry, the fracturing wellhead device is connected with the hydraulic pulse pipe, a check valve is arranged on the hydraulic pulse pipe connected with the vacuum pump, at least one gate valve is arranged on the hydraulic pulse pipe, and at least one shock absorber is further arranged on the hydraulic pulse pipe.
2. The hydraulic pulse enhanced hydraulic fracturing system of claim, wherein: the packer is equipped with four, four the packer symmetry sets up on the sleeve pipe of sandblaster upper and lower both sides.
3. The hydraulic pulse enhanced hydraulic fracturing system of claim, wherein: two shock absorbers are arranged on the hydraulic pulse tube, and the shock absorbers are arranged in the area with the largest deflection on the hydraulic pulse tube.
Priority Applications (1)
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CN202011597751.8A CN112647918A (en) | 2020-12-29 | 2020-12-29 | Hydraulic pulse reinforced hydraulic fracturing system |
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CN202011597751.8A CN112647918A (en) | 2020-12-29 | 2020-12-29 | Hydraulic pulse reinforced hydraulic fracturing system |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113818878A (en) * | 2021-10-28 | 2021-12-21 | 烟台杰瑞石油装备技术有限公司 | Hydraulic fracturing rock breaking method and system |
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CN109630084A (en) * | 2018-12-03 | 2019-04-16 | 中国石油集团川庆钻探工程有限公司 | A kind of pulsating load temporarily blocks up fracture simulation apparatus and method |
CN110043236A (en) * | 2019-05-13 | 2019-07-23 | 燕山大学 | A kind of pulsed hydraulic fracturing pressure-generating device and method |
CN209586287U (en) * | 2018-12-25 | 2019-11-05 | 宝鸡石油机械有限责任公司 | A kind of multiple degrees of freedom fracture manifold sled Quick Connect Kit |
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2020
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Application publication date: 20210413 |