CN206246108U - A kind of pressure break pipe device that be can be recycled in hydraulic fracturing experiments - Google Patents
A kind of pressure break pipe device that be can be recycled in hydraulic fracturing experiments Download PDFInfo
- Publication number
- CN206246108U CN206246108U CN201621145520.2U CN201621145520U CN206246108U CN 206246108 U CN206246108 U CN 206246108U CN 201621145520 U CN201621145520 U CN 201621145520U CN 206246108 U CN206246108 U CN 206246108U
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- Prior art keywords
- pressure break
- pipe
- inner tube
- groove
- draw
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Abstract
The utility model discloses the pressure break pipe device that be can be recycled in a kind of hydraulic fracturing experiments, it is characterised in that：Including pressure break pipe-in-pipe, pressure break pipe inner tube；Pressure break pipe-in-pipe is cylindrical shape, and its inwall is provided with screw thread, and upper port is provided with square draw-in groove, and draw-in groove external diameter is more than sleeve outer；The outer wall of pressure break pipe inner tube is provided with external screw thread, and inner tube upper port is provided with square draw-in groove, and draw-in groove external diameter is less than inner tube external diameter, by spanner rotating inner tube upper end draw-in groove inner tube can be made to load in sleeve pipe.Then be screwed into pressure break pipe inner tube in pressure break pipe-in-pipe, to carry out hydraulic fracturing experiments by the utility model by the way that pressure break pipe-in-pipe to be bonded to the surface in pressure break hole first.Have the advantages that to shorten experimental period, reduce the effective material of pressure break, not only time saving, laborsaving, good seal performance when carrying out experiment, and also it is simple to operation, the success rate of experiment can be significantly increased, more quickly and efficiently carry out hydraulic fracturing experiments.
Description
Technical field
The utility model is related to the pressure break pipe device that be can be recycled in a kind of hydraulic fracturing experiments, is experimental provision.
Background technology
The prominent mine coal seam poor air permeability of the height of China more than 70%, gas bearing capacity is high, extraction flux depression is fast and concentration is high,
Extraction total amount is limited, causes extraction management work heavy, and extraction reaching standard time is long, digging serious unbalance, it is difficult to realize efficiently raw
Produce.A kind of regional gas control with universality that underground coal mine water conservancy reinforcement technique exactly arises at the historic moment under this background
Technology, including two kinds of approach of hydraulic fracturing and hydraulic flushing in hole two ways, wherein hydraulic fracturing are the masters of ground coal bed gas exploitation
Want well stimulation, but theoretical, technology or equip etc. is all needed to be further improved.At present, for hydraulic fracturing theory side
The research in face mostly concentrates on numerical simulation and field experiment, and hydraulic fracturing laboratory experiment not only can with single factor test to waterpower
Pressure break be simulated, and the coal and rock that can more fit live pressure break, be that the selection of coal seam reservoirs hydraulic fracturing construction parameter is carried
For foundation and reference.Hydraulic fracturing experiments over-borrowing pressing aid splits pipe carries out pressure break to test specimen, and pressure break pipe cannot mostly realize circulation
Use, cause experimental period more long, it is impossible to be rapidly completed and efficiently complete hydraulic fracturing experiments, be this this paper presents a kind of water
The pressure break pipe device that be can be recycled in power fracturing experiments.
The content of the invention
The purpose of this utility model is to provide the pressure break pipe device that be can be recycled in a kind of hydraulic fracturing experiments, with contracting
Short experimental period, the advantage for reducing the effective material of pressure break, not only time saving, laborsaving, good seal performance when carrying out experiment, and also it is simple easy
Operate, can be recycled, can more quickly and efficiently complete hydraulic fracturing experiments.
To achieve the above object, the utility model is adopted the following technical scheme that：
Described pressure break pipe device is by sleeve pipe（4）And inner tube（6）Two parts are constituted；Pressure break pipe-in-pipe（4）It is cylindrical shape, its
Inwall is provided with screw thread（3）, upper port is provided with square draw-in groove（1）, draw-in groove（1）External diameter is more than sleeve pipe（4）External diameter；In pressure break pipe
Pipe（6）Outer wall be provided with external screw thread（3）, inner tube（6）Upper port is provided with square draw-in groove（5）, draw-in groove（5）External diameter is less than inner tube
（6）External diameter, by spanner rotating inner tube（6）Upper end draw-in groove（5）Inner tube can be made（6）Load sleeve pipe（4）It is interior.
Described pressure break pipe inner tube（6）Bottom nozzle external diameter is less than its pipe shaft external diameter, and bottom is provided with symmetrical four and goes out
Water aperture（2）.
The beneficial effects of the utility model are：
（1）On the basis of the common pipe integrated structure of pressure break, pressure break pipe is designed to detachable structure, Ke Yijie
About materials of pressure break pipe, it is to avoid unnecessary waste；
（2）When repeating to carry out hydraulic fracturing experiments, need to only back-out pressure break pipe inner tube, then be threaded into another pressure break pipe
In sleeve pipe, you can repeat to carry out hydraulic fracturing experiments.Have the advantages that to shorten experimental period, it is time saving, laborsaving during development experiment, and
And it is simple to operation；
（3）Unsintered tape is wound into pipe surface in pressure break pipe, makes the pressure break seal of tube functional, disclosure satisfy that hydraulic fracturing
To the requirement of pressure break pipe in experiment；
（4）Pressure break pipe is designed to detachable structure, the success rate of experiment can be significantly increased, more quickly and efficiently opened
Exhibition hydraulic fracturing experiments.
The utility model can quickly and efficiently complete the pressure break of multispecimen for repeating to carry out hydraulic fracturing experiments, press
Splitting pipe and being designed to detachable structure not only largely reduces the use of experiment material, and can shorten experimental period,
Strong operability.The use of unsintered tape, can strengthen the sealing between pressure break pipe-in-pipe and pressure break pipe inner tube, be the success of experiment
There is provided guarantee.
Implementing the pressure break pipe device that can be recycled can quickly and efficiently complete a series of hydraulic fracturing experiments, be section
About experimental cost, raising conventional efficient are provided and ensured.
Brief description of the drawings
Fig. 1 is the profile of pressure break pipe-in-pipe.
Fig. 2 is the top view of pressure break pipe-in-pipe.
Fig. 3 is the profile of pressure break pipe inner tube.
Fig. 4 is the top view of pressure break pipe inner tube.
Fig. 5 is profile when pressure break pipe works.
Specific embodiment
To make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with the accompanying drawings to the utility model
Implementation method describe in further detail.As shown in accompanying drawing 1-5,
Pressure break pipe device is by sleeve pipe（4）And inner tube（6）Two parts are constituted；Pressure break pipe-in-pipe（4）It is cylindrical shape, its inwall sets
It is equipped with screw thread（3）, upper port is provided with square draw-in groove（1）, draw-in groove（1）External diameter is more than sleeve pipe（4）External diameter；Pressure break pipe inner tube（6）
Outer wall be provided with external screw thread（3）, inner tube（6）Upper port is provided with square draw-in groove（5）, draw-in groove（5）External diameter is less than inner tube（6）Outward
Footpath, by spanner rotating inner tube（6）Upper end draw-in groove（5）Inner tube can be made（6）Load sleeve pipe（4）It is interior.
Pressure break pipe inner tube（6）Bottom nozzle external diameter is less than its pipe shaft external diameter, and bottom is provided with four symmetrical ostium excurrenses
（2）.
The device is comprised the following steps when using：
（1）Pressure break test specimen will be treated（7）Precast the pressure break hole with certain depth, sleeve pipe（4）Outer surface uniform application AB
Load in pressure break hole after glue, make sleeve pipe（4）Draw-in groove（1）It is stuck in test specimen（7）Outside, makes sleeve pipe（4）It is bonded in pressure break hole.
（2）After sleeve pipe bonding is solid, inner tube is blocked with spanner（6）Draw-in groove（5）, by rotary spanner, make inner tube（6）
In screw thread（3）In the presence of load sleeve pipe（4）It is interior.
（3）By inner tube（6）Draw-in groove（5）It is connected with fracturing pump by high-voltage tube, opens fracturing pump, fracturing fluid is small from water outlet
Hole（2）Outflow, to complete hydraulic fracturing experiments.
（4）After experiment terminates, by inner tube（6）From sleeve pipe（4）In back-out, be attached in the sleeve pipe of another test specimen, in repetition
Operation is stated, the hydraulic fracturing experiments of other test specimens are completed.
（5）The pressure break pipe device that be can be recycled in the hydraulic fracturing experiments has simple to operation, time saving, laborsaving, province
The advantage of material, for efficiently quick hydraulic fracturing experiments of carrying out provide guarantee.
Claims (2)
1. the pressure break pipe device that be can be recycled in a kind of hydraulic fracturing experiments, it is characterised in that：Described pressure break pipe device by
Sleeve pipe（4）And inner tube（6）Two parts are constituted；Pressure break pipe-in-pipe（4）It is cylindrical shape, its inwall is provided with screw thread（3）, upper port sets
There is square draw-in groove（1）, draw-in groove（1）External diameter is more than sleeve pipe（4）External diameter；Pressure break pipe inner tube（6）Outer wall be provided with external screw thread
（3）, inner tube（6）Upper port is provided with square draw-in groove（5）, draw-in groove（5）External diameter is less than inner tube（6）External diameter, by spanner rotating inner tube
（6）Upper end draw-in groove（5）Inner tube can be made（6）Load sleeve pipe（4）It is interior.
2. the pressure break pipe device that be can be recycled in a kind of hydraulic fracturing experiments as claimed in claim 1, it is characterised in that：Institute
The pressure break pipe inner tube stated（6）Bottom nozzle external diameter is less than its pipe shaft external diameter, and bottom is provided with four symmetrical ostium excurrenses（2）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621145520.2U CN206246108U (en) | 2016-10-21 | 2016-10-21 | A kind of pressure break pipe device that be can be recycled in hydraulic fracturing experiments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621145520.2U CN206246108U (en) | 2016-10-21 | 2016-10-21 | A kind of pressure break pipe device that be can be recycled in hydraulic fracturing experiments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206246108U true CN206246108U (en) | 2017-06-13 |
Family
ID=58996586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621145520.2U Expired - Fee Related CN206246108U (en) | 2016-10-21 | 2016-10-21 | A kind of pressure break pipe device that be can be recycled in hydraulic fracturing experiments |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206246108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082221A (en) * | 2019-05-31 | 2019-08-02 | 中国平煤神马能源化工集团有限责任公司 | A kind of true triaxial crushing test device |
-
2016
- 2016-10-21 CN CN201621145520.2U patent/CN206246108U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082221A (en) * | 2019-05-31 | 2019-08-02 | 中国平煤神马能源化工集团有限责任公司 | A kind of true triaxial crushing test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170613 Termination date: 20171021 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |