CN110578522A - Application method of fracturing pipe - Google Patents
Application method of fracturing pipe Download PDFInfo
- Publication number
- CN110578522A CN110578522A CN201911019963.5A CN201911019963A CN110578522A CN 110578522 A CN110578522 A CN 110578522A CN 201911019963 A CN201911019963 A CN 201911019963A CN 110578522 A CN110578522 A CN 110578522A
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- Prior art keywords
- fracturing
- pipe
- liquid storage
- storage pipe
- valve core
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C37/00—Other methods or devices for dislodging with or without loading
- E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
- E21C37/14—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole by compressed air; by gas blast; by gasifying liquids
Abstract
The invention belongs to the technical field of gas expansion rock fracturing methods, and discloses a use method of a fracturing pipe, which comprises the following steps: the fracturing pipe is inserted into the fracturing hole, the movable valve core is pressed and moved back under the action of the self gravity of the liquid storage pipe, so that the automatic air release valve is controlled to be closed, the communication between the inside of the liquid storage pipe and the external space of the liquid storage pipe is blocked by the automatic air release valve, and the air entering the liquid storage pipe cannot be released through the automatic air release valve; thereby ensuring the normal inflation of the liquid storage pipe and finishing the filling of the gas. Compared with the prior art, the gas filling device limits the filling operation and the using environment of the fracturing pipe, and the fracturing pipe can be filled with gas only under the support of the fracturing hole by means of the gravity of the fracturing pipe. Can effectively prevent lawless persons from using the cracking tube to manufacture cases (accidents) threatening public safety.
Description
Technical Field
The invention belongs to the technical field of gas expansion rock fracturing methods, and particularly relates to a using method of a fracturing pipe.
Background
The carbon dioxide cracking device is used for cracking rocks or coal by heating, gasifying and expanding liquid carbon dioxide and then quickly releasing high-pressure gas. The expansion agent has the advantages of controllable expansion capacity, high power, no explosive shock wave and the like, and is widely applied to the fields of urban construction, mineral exploitation and the like. In the related technology, the fracturing pipe is provided with an inflation inlet, and an external gas source is communicated with the inflation inlet to fill carbon dioxide gas into the fracturing pipe. In the related technology, the method for filling the fracturing pipe is to directly inflate the fracturing pipe through an air source. Namely, whether the cracking tube is positioned in the cracking hole or not, even if the cracking tube is positioned in the open air environment, the filling and the use of the cracking tube can be realized. Because the environment for implementing the filling operation and the use of the fracturing pipe is not limited, an operator can fill and inspire the fracturing pipe in the open air; the power of cracking of the cracked pipe is huge, so that lawless persons can utilize the cracked pipe to manufacture cases (incidents) threatening public safety, and therefore, the cracked pipe has great potential social safety hazards.
Therefore, there is a need to provide a new method for using a cracking tube to solve the above technical problems.
Disclosure of Invention
The use method of the fracturing pipe comprises a liquid storage pipe and an automatic air release valve which is arranged at the bottom of the liquid storage pipe and communicated with the liquid storage pipe, wherein a movable valve core is arranged on the automatic air release valve; when the movable valve core is in a normal ejection state, the automatic air release valve is communicated with the inner space of the liquid storage pipe and the outer space of the liquid storage pipe; the use method of the fracturing pipe comprises the following steps:
s1, forming or selecting a cracking hole;
S2, inserting the fracturing pipe into the fracturing hole, and enabling the movable valve core to be in contact with the bottom of the fracturing hole; the movable valve core is pressed to withdraw under the action of the gravity of the liquid storage pipe, so that the automatic air release valve is controlled to be closed, the automatic air release valve blocks the communication between the inside of the liquid storage pipe and the space outside the liquid storage pipe, and the air entering the liquid storage pipe cannot release air through the automatic air release valve;
And S3, inflating the liquid storage pipe to finish the filling of the gas.
preferably, the liquid storage pipe is a metal pipe.
preferably, the liquid storage pipe is a plastic pipe.
Preferably, the automatic release valve further comprises a spring, and the movable valve core realizes a normal ejection state by means of the elasticity of the spring.
Preferably, the spring is a tower spring.
Preferably, the angle between the wall of the fracture hole and the vertical direction is less than 60 degrees.
Preferably, one end of the movable valve core is accommodated in the liquid storage pipe.
Preferably, the other end of the movable valve core extends out of the liquid storage pipe.
Preferably, the liquid storage pipe is inflated through the side of the liquid storage pipe far away from the bottom of the cracking hole.
Preferably, the gas filled in the liquid storage pipe is carbon dioxide.
Compared with the prior art, the gas filling device limits the filling operation and the using environment of the fracturing pipe, operators cannot perform gas filling and initiation operation on the fracturing pipe in the open air, and the fracturing pipe can only depend on the gravity of the fracturing pipe under the support of the fracturing hole to realize the gas filling operation on the fracturing pipe. Can effectively prevent lawless persons from using the cracking tube to manufacture cases (accidents) threatening public safety.
drawings
FIG. 1 is a diagram of the gas leakage state of a fracturing pipe in the use method of the fracturing pipe;
fig. 2 is an inflatable state diagram of the dehiscence tube of fig. 1.
In the figure:
The valve plug comprises a lower plug cover 1, a movable valve core 2, an elastic element 3, a valve core plug 4, a first sealing element 5, a second sealing element 6, a third sealing element 7 and a liquid storage pipe 8; the device comprises a first accommodating cavity 11, a second accommodating cavity 12, a blocking cover air leakage hole 13, a blocking cover blocking step 14 and a blocking cover internal thread 15; a valve core air release hole 21, a valve core communication hole 22, a valve core plugging step 23 and a valve core limiting step 24; a core plug external thread 41;
The liquid storage tube 01, the valve casing 02, the valve gap 03, the valve core 04, the elastic element 05, the first sealing element 06, the second sealing element 07, the third sealing element 08 and the air release hole 0201.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-2, a method for using a fracturing pipe, the fracturing pipe comprises a liquid storage pipe 8 and an automatic air release valve arranged at the bottom of the liquid storage pipe 8 and communicated with the liquid storage pipe 8, wherein a movable valve core 2 is arranged on the automatic air release valve; when the movable valve core 2 is in a normal ejection state, the automatic air release valve is communicated with the inner space of the liquid storage pipe 8 and the outer space of the liquid storage pipe 8; the use method of the fracturing pipe comprises the following steps:
And S1, forming or selecting a cracking hole.
s2, inserting the fracturing pipe into the fracturing hole, and enabling the movable valve core 2 to be in contact with the bottom of the fracturing hole; liquid reserve pipe 8 is down under the effect of self gravity, pressure moves movable valve core 2 is withdrawed, thereby control automatic snuffle valve is closed, automatic snuffle valve blocks liquid reserve pipe 8 inside with the intercommunication of 8 exterior spaces of liquid reserve pipe makes the entering gaseous unable process in the liquid reserve pipe 8 automatic snuffle valve is lost heart.
And S3, inflating the liquid storage pipe 8 to finish the filling of the gas.
In the embodiment, the filling operation and the use environment of the fracturing pipe are limited, an operator cannot perform gas filling and inspiring operation on the fracturing pipe in an open environment, the fracturing pipe can only depend on the gravity of the operator under the support of the fracturing hole, the gas filling operation on the fracturing pipe is realized, and the case (accident) that lawless persons use the fracturing pipe to threaten public safety can be effectively prevented.
Further, the liquid storage pipe 8 is a metal pipe or a plastic pipe. The invention can be implemented by the liquid storage pipe 8 of a metal pipe or a plastic pipe, and has wide application range.
Further, the automatic air release valve further comprises a spring, and the movable valve core 2 realizes a normal ejection state by means of the elasticity of the spring. Specifically, the spring is a tower spring. The spring is a compression spring, and when force is not applied to the movable valve core 2 in a normal state, the valve core is ejected out under the action of the elastic force of the spring, the automatic air release valve is in an air release state at the moment, and air filled into the liquid storage pipe 8 can be released through the automatic air release valve, so that the situation that the air filling of the liquid storage pipe 8 cannot be carried out in an open state is ensured.
Further, the angle between the wall of the fractured hole and the vertical direction is less than 60 degrees. This design is used for guaranteeing that the size of gravity is big enough, can depress movable valve core 2 to close automatic release valve. The vertical direction means a direction perpendicular to the ground.
Furthermore, one end of the movable valve core 2 is accommodated in the liquid storage pipe 8, and the other end of the movable valve core 2 extends out of the liquid storage pipe 8. This design does benefit to the compactness that improves the structure on the one hand, and on the other hand, the structure that movable valve core 2 stretches out liquid storage pipe 8 does benefit to it and leads the contact of cracked hole bottom, does benefit to it and bears gravity and contracts.
Further, the liquid storage pipe 8 is inflated through the side of the liquid storage pipe 8 far away from the bottom of the cracking hole. This design contributes to the convenience of work.
the gas filled in the liquid storage pipe 8 is carbon dioxide.
In order to further explain the invention, the detailed structure of the fracturing pipe in the use method of the fracturing pipe is specifically described below.
referring to fig. 1-2, a fracturing pipe comprises: the automatic air release valve comprises a liquid storage pipe 8 and an automatic air release valve, wherein the liquid storage pipe 8 is in a tubular shape with an opening at the bottom, one end of a lower blocking cover 1, which is far away from a valve core block 4, is accommodated in the liquid storage pipe 8, and the outer side part of the lower blocking cover 1 is hermetically and fixedly connected with the bottom periphery of the liquid storage pipe 8; the plug air release hole 13 is communicated with the second accommodating cavity 12 and the inner cavity of the liquid storage pipe 8, and the valve core air release hole 21 is communicated with the valve core communication hole 22 and the outer space of the liquid storage pipe 8. The automatic air release valve comprises: the lower blocking cover 1, the movable valve core 2 and the elastic element 3; the lower plugging cover 1 is internally provided with: a first accommodating cavity 11, a second accommodating cavity 12 communicated with the first accommodating cavity 11, a blocking cover air release hole 13 communicated with the second accommodating cavity 12 and the outer space of the lower blocking cover 1, and a blocking cover blocking step 14 arranged at the joint of the first accommodating cavity 11 and the second accommodating cavity 12; the movable valve core 2 is internally provided with: a valve core air release hole 21 communicated with the outer space of the movable valve core 2, a valve core communication hole 22 communicated with the valve core air release hole 21 and the second accommodating cavity 12, and a valve core plugging step 23 matched with the plugging cover plugging step 14 is arranged on the outer side wall of the movable valve core 2; the valve core air release hole 21 is positioned at one end of the movable valve core 2, and the valve core plugging step 23 is arranged between two ends of the movable valve core 2; the elastic element 3 is arranged in the first accommodating cavity 11; part of the movable valve core 2 is arranged in the second containing cavity 12; when the elastic element 3 is in an extended state, the blocking step 14 of the blocking cover and the blocking step 23 of the valve core are arranged at intervals; when the elastic element 3 is in a compressed state, the blocking step 14 of the blocking cover is in sealing fit with the blocking step 23 of the valve core. The elastic element 3 is a compression spring. One end of the movable spool 2 abuts the elastic member 3. The other end of the movable valve core 2 extends out of the lower blocking cover 1. Because the automatic air release valve is applied to the fracturing pipe, when the fracturing pipe is positioned outside the fracturing hole, the fracturing pipe is in a horizontal or slightly inclined state, the elastic element 3 is in an unstressed unfolded state, the inner cavity of the liquid storage pipe 8 is communicated with the outer space of the liquid storage pipe 8 through the blocking cover air release hole 13, the second accommodating cavity 12, the valve core communication hole 22 and the valve core air release hole 21, namely, the inner cavity of the liquid storage pipe 8 is communicated with the outer space, the liquid storage pipe 8 is inflated at the moment, the gas entering the liquid storage pipe 8 is released through the valve core air release hole 21, and the gas filling cannot be completed.
further, as another embodiment of the present invention, a convex valve core limiting step 24 is further provided on the outer side wall of the movable valve core 2, and the valve core limiting step 24 is provided between the valve core blocking step 23 and one end of the movable valve core 2 far away from the valve core communication hole 22; the automatic air release valve also comprises a valve core block 4, the valve core block 4 is fixedly connected with the lower blocking cover 1, and one end of the valve core block 4 is abutted against the limiting step; the other end of the movable valve core 2 penetrates through the valve core plug 4 and then extends out of the lower plug cover 1. In the embodiment, the added valve plug 4 is used for preventing the movable valve core 2 from dropping off, and meanwhile, the valve plug 4 can limit the movable range of the movable valve core 2. Further, as another embodiment of the present invention, the outer side wall of the valve plug 4 is provided with a plug outer thread 41; one end of the second accommodating cavity 12, which is far away from the first accommodating cavity 11, is provided with a plug internal thread 15 matched with the core plug external thread 41, and the valve core plug 4 is fixedly connected with the lower plug 1 through the matching of the core plug external thread 41 and the plug internal thread 15. In the embodiment, the valve core plug 4 and the lower plug cover 1 are connected in a detachable threaded manner, so that the compression spring and the movable valve core 2 are assembled.
Further, as another embodiment of the present invention, the first seal 5 is provided between the cap blocking step 14 and the valve element blocking step 23. This design facilitates improved sealing performance.
Further, as another embodiment of the invention, a second sealing member 6 is arranged between the outer side wall of the movable valve core 2 and the valve core plug 4; the second sealing member 6 is two spaced apart. This design contributes to further improvement of the sealing performance.
Further, as another embodiment of the present invention, a third sealing member 7 is provided between the valve body plug 4 and the lower plug cover 1. This design contributes to further improvement of the sealing performance.
Further, as another embodiment of the present invention, both the liquid storage tube 8 and the lower blocking cover 1 are made of steel material and are fixedly connected by welding.
It should be noted that the structure of the fracturing pipe is used for illustrating the use method of the fracturing pipe, and besides the above structure, the fracturing pipe can also have other structures, and specifically, the automatic air release valve in the fracturing pipe can also have other structures. All fall within the scope of the present invention.
Compared with the prior art, the gas filling device limits the filling operation and the using environment of the fracturing pipe, operators cannot perform gas filling and inspiring operation on the fracturing pipe in the open air, the fracturing pipe can only depend on the gravity of the fracturing pipe under the support of the fracturing hole, the gas filling operation on the fracturing pipe is realized, and the case (accident) that lawless persons use the fracturing pipe to threaten public safety can be effectively prevented.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The use method of the fracturing pipe is characterized in that the fracturing pipe comprises a liquid storage pipe and an automatic air release valve which is arranged at the bottom of the liquid storage pipe and communicated with the liquid storage pipe, wherein a movable valve core is arranged on the automatic air release valve; when the movable valve core is in a normal ejection state, the automatic air release valve is communicated with the inner space of the liquid storage pipe and the outer space of the liquid storage pipe; the use method of the fracturing pipe comprises the following steps:
S1, forming or selecting a cracking hole;
S2, inserting the fracturing pipe into the fracturing hole, and enabling the movable valve core to be in contact with the bottom of the fracturing hole; the movable valve core is pressed to withdraw under the action of the gravity of the liquid storage pipe, so that the automatic air release valve is controlled to be closed, the automatic air release valve blocks the communication between the inside of the liquid storage pipe and the space outside the liquid storage pipe, and the air entering the liquid storage pipe cannot release air through the automatic air release valve;
And S3, inflating the liquid storage pipe to finish the filling of the gas.
2. The method of using a fracturing tube of claim 1, wherein the reservoir tube is a metal tube.
3. The method of using a fracturing tube of claim 1, wherein said reservoir tube is a plastic tube.
4. The use method of the fracturing pipe as claimed in claim 1, wherein said automatic release valve further comprises a spring, and said movable valve core realizes a normal ejection state by means of the elastic force of said spring.
5. The method of using the fracturing tube of claim 4, wherein the spring is a tower spring.
6. The method of using the fracturing pipe of claim 1, wherein the angle of the fracture hole wall to the vertical is less than 60 °.
7. The method of using the fracturing tube of claim 1, wherein one end of the movable valve element is received within the reservoir tube.
8. The method of claim 7, wherein the other end of the movable valve element extends out of the reservoir.
9. The method of claim 1, wherein the reservoir tube is inflated through a side of the reservoir tube distal from the bottom of the fracturing bore.
10. The method of using the fracturing pipe of claim 1, wherein the gas filling the reservoir pipe is carbon dioxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911019963.5A CN110578522B (en) | 2019-10-25 | 2019-10-25 | Application method of fracturing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911019963.5A CN110578522B (en) | 2019-10-25 | 2019-10-25 | Application method of fracturing pipe |
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| Publication Number | Publication Date |
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| CN110578522A true CN110578522A (en) | 2019-12-17 |
| CN110578522B CN110578522B (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911019963.5A Active CN110578522B (en) | 2019-10-25 | 2019-10-25 | Application method of fracturing pipe |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2637274A (en) * | 1946-11-29 | 1953-05-05 | Ici Ltd | Power-gas generating device |
| JPH08272455A (en) * | 1995-03-31 | 1996-10-18 | Nippon Spindle Mfg Co Ltd | Flow rate control valve |
| CN202510760U (en) * | 2012-03-16 | 2012-10-31 | 中煤科工集团西安研究院 | Waterway conversion valve for hydraulic fracturing ground stress testing method |
| DE102011086692A1 (en) * | 2011-11-21 | 2013-05-23 | Robert Bosch Gmbh | Valve i.e. overflow valve, for use in common-rail injection system for e.g. diesel engine of motor car, has inlet apertures supplying fluid within cylinder space, where one of apertures is closed and opened in closing and opening positions |
| CN107238458A (en) * | 2017-07-27 | 2017-10-10 | 中国科学院武汉岩土力学研究所 | Dry hole relief valve and hydrofracturing detecting earth stress device |
| CN107448169A (en) * | 2017-08-28 | 2017-12-08 | 中国地质科学院地质力学研究所 | A kind of three-body type Hydraulic Fracturing Stress Measurements Push-and-pull valve |
| CN108801068A (en) * | 2018-06-28 | 2018-11-13 | 方莹 | A kind of process using fracturing pipe fracturing rock |
| CN208816120U (en) * | 2018-09-13 | 2019-05-03 | 方莹 | A kind of steel gas fracturing pipe |
-
2019
- 2019-10-25 CN CN201911019963.5A patent/CN110578522B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2637274A (en) * | 1946-11-29 | 1953-05-05 | Ici Ltd | Power-gas generating device |
| JPH08272455A (en) * | 1995-03-31 | 1996-10-18 | Nippon Spindle Mfg Co Ltd | Flow rate control valve |
| DE102011086692A1 (en) * | 2011-11-21 | 2013-05-23 | Robert Bosch Gmbh | Valve i.e. overflow valve, for use in common-rail injection system for e.g. diesel engine of motor car, has inlet apertures supplying fluid within cylinder space, where one of apertures is closed and opened in closing and opening positions |
| CN202510760U (en) * | 2012-03-16 | 2012-10-31 | 中煤科工集团西安研究院 | Waterway conversion valve for hydraulic fracturing ground stress testing method |
| CN107238458A (en) * | 2017-07-27 | 2017-10-10 | 中国科学院武汉岩土力学研究所 | Dry hole relief valve and hydrofracturing detecting earth stress device |
| CN107448169A (en) * | 2017-08-28 | 2017-12-08 | 中国地质科学院地质力学研究所 | A kind of three-body type Hydraulic Fracturing Stress Measurements Push-and-pull valve |
| CN108801068A (en) * | 2018-06-28 | 2018-11-13 | 方莹 | A kind of process using fracturing pipe fracturing rock |
| CN208816120U (en) * | 2018-09-13 | 2019-05-03 | 方莹 | A kind of steel gas fracturing pipe |
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| CN110578522B (en) | 2021-03-02 |
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Effective date of registration: 20210906 Address after: 528000 room 801-1, R & D workshop, building 11, Lihe technology industry center, No. 99, Taoyuan East Road, Shishan town, Nanhai District, Foshan City, Guangdong Province Patentee after: Foshan Likai Engineering Technology Co.,Ltd. Address before: 528231 factory building No.10, No.2, erheng Road, zhongbian lianghao Industrial Zone, Dali Town, Nanhai District, Foshan City, Guangdong Province Patentee before: Fang Ying |
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