CN204386579U - A kind of hydrofracturing pipe with sealing device - Google Patents
A kind of hydrofracturing pipe with sealing device Download PDFInfo
- Publication number
- CN204386579U CN204386579U CN201520050423.4U CN201520050423U CN204386579U CN 204386579 U CN204386579 U CN 204386579U CN 201520050423 U CN201520050423 U CN 201520050423U CN 204386579 U CN204386579 U CN 204386579U
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- Prior art keywords
- hydrofracturing
- pipe
- pressing plate
- pressure cylinder
- nut
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Abstract
The utility model relates to a kind of hydrofracturing pipe with sealing device, belongs to Geotechnical Engineering field.This device is made up of hydrofracturing pipe, locking nut, pressure cylinder, pressing plate, rubber seal, setscrew nut; Hydrofracturing pipe stage casing is provided with hydrofracturing section, the surface of hydrofracturing pipe is provided with screw thread, hydrofracturing section two ends are disposed with setscrew nut, rubber seal, pressing plate, pressure cylinder, locking nut from inside to outside respectively, spinning is on hydrofracturing pipe respectively for setscrew nut and locking nut, and rubber seal, pressing plate, pressure cylinder difference movable set is on hydrofracturing pipe.Setscrew nut can regulate the length of hydrofracturing section, rubber seal can reach sealing effectiveness, and it is concentrated to produce stress, pressing plate and pressure cylinder are easy to locking nut by the locking in the sample of hydrofracturing pipe, and the hydrofracturing pipe with sealing device of the present utility model is reasonable in design, are easy to processing, be easy to operation, save time, can repeat to use simultaneously, economize on resources.
Description
Technical field
The present invention relates to a kind of hydrofracturing pipe with sealing device, belong to Geotechnical Engineering field.
Background technology
For deep understanding shale reservoir hydraulic fracture Extending Law and spatial shape thereof, carrying out the large-scale physical simulation experiment of indoor fracturing, by testing extension and the Spatial Distribution Pattern of rear sample hydraulic fracture, having inquired into the formation mechenism of fracturing map cracking.Fracturing physical simulation experiment can be shale gas Optimized fracturing design etc. and provides technical support.
But the simulation of hydrofracturing pipe and the sealing of hydrofracturing pipe also exist very large problem in hydrofracturing laboratory test.Mainly adopt in present hydrofracturing laboratory test hydrofracturing pipe bottom welded closure, and with high-strength adhesive by sleeve pipe and prefabricated well sealing, adopt at sleeve pipe slot place cotton yarn from managing filling outside to inside to prevent cementing agent shutoff slot passage.This method not only complicated operation, and cotton yarn still can largely bond by cementing agent, causes that water passage place crackle is disorderly and unsystematic does not have rule, and easily form stress in hydrofracturing pipe upper end and concentrate.After having tested, steel pipe has been bonded on rock sample, can not observe fracture pattern, and can not reuse, waste resource.
Summary of the invention
For above-mentioned existing problems, the object of the present invention is to provide a kind of hydrofracturing pipe with sealing device, to achieve these goals, technical solution of the present invention is:
A kind of hydrofracturing pipe with sealing device, comprise the hydrofracturing pipe of stage casing with hydrofracturing section, the surface of hydrofracturing pipe is provided with screw thread, setscrew nut, rubber seal, pressing plate, pressure cylinder, locking nut is disposed with respectively from inside to outside at hydrofracturing section two ends, spinning is on hydrofracturing pipe respectively for setscrew nut and locking nut, and rubber seal, pressing plate, pressure cylinder difference movable set is on hydrofracturing pipe.
Owing to have employed above technical scheme, the present invention adopts and arranges locking nut, pressure cylinder, pressing plate, rubber boat, setscrew nut at fracturing section two ends, setscrew nut can regulate the length of hydrofracturing section, rubber seal can reach sealing effectiveness, and it is concentrated to produce stress, pressing plate and pressure cylinder are easy to locking nut by the locking in the sample of hydrofracturing pipe, by turning locking nut extruding pressure cylinder, pressure cylinder extruding pressing plate, pressing plate extruding elastic tape, elastic tape stress deformation, the gap to both sides extrudes thus reaches the effect of sealing.
The present invention has the following advantages and good effect:
(1) this device can realize the sealing of sample water passage in hydrofracturing laboratory test by the compressive deformation of elastic tape.
(2) this device can by changing the length of the position adjustments water passage of setscrew nut.
(3) this device can solve the stress that occurs in fracturing laboratory test and concentrates.
(4) this device can easily take out after test completes, and can observe the morphological feature in crack better, thus can study the extension of hydraulic fracture and Spatial Distribution Pattern better and inquire into the formation mechenism of fracturing map cracking.
Hydrofracturing pipe with sealing device of the present invention is reasonable in design, is easy to processing, is easy to operation, and saves time, and can repeat to use simultaneously, economize on resources.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is using state schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
See accompanying drawing 1.
A kind of hydrofracturing pipe with sealing device, it is by hydrofracturing pipe 1, locking nut 2, pressure cylinder 3, pressing plate 4, rubber seal 5, setscrew nut 6 is formed, hydrofracturing pipe 1 stage casing is provided with hydrofracturing section, hydrofracturing section has equally distributed weep hole, the surface of hydrofracturing pipe 1 is provided with screw thread, setscrew nut 6 is disposed with respectively from inside to outside at hydrofracturing section 1 two ends, rubber seal 5, pressing plate 4, pressure cylinder 3, locking nut 2, setscrew nut 6 and locking nut 2 difference spinning are on hydrofracturing pipe, rubber seal 5, pressing plate 4, pressure cylinder 3 difference movable set is on hydrofracturing pipe 1, one end of hydrofracturing pipe 1 is provided with shutoff nut.
The operating principle of a kind of hydrofracturing pipe with sealing device of the present invention:
Before hydrofracturing pipe 1 is put into sample, setscrew nut 6 is regulated to determine the length of hydrofracturing section according to specimen size, again the hydrofracturing pipe 1 adjusting hydrofracturing segment length is put into sample, turn locking nut 2 rubber seal 5 is closely pressed in the sample, one end of hydrofracturing pipe 1 is connected with high-pressure water, other end shutoff nut shutoff, joint test device can carry out hydrofracturing laboratory test, test complete, unclamp locking nut 2, hydrofracturing pipe 1 can be taken out.
Claims (1)
1. the hydrofracturing pipe with sealing device, comprise the hydrofracturing pipe (1) of stage casing with hydrofracturing section, it is characterized in that: on the surface of hydrofracturing pipe (1), be provided with screw thread, hydrofracturing section two ends are disposed with setscrew nut (6) from inside to outside respectively, rubber seal (5), pressing plate (4), pressure cylinder (3), locking nut (2), setscrew nut and locking nut spinning (1) on hydrofracturing pipe respectively, rubber seal (5), pressing plate (4), pressure cylinder (3) difference movable set is on hydrofracturing pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520050423.4U CN204386579U (en) | 2015-01-06 | 2015-01-06 | A kind of hydrofracturing pipe with sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520050423.4U CN204386579U (en) | 2015-01-06 | 2015-01-06 | A kind of hydrofracturing pipe with sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204386579U true CN204386579U (en) | 2015-06-10 |
Family
ID=53359310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520050423.4U Expired - Fee Related CN204386579U (en) | 2015-01-06 | 2015-01-06 | A kind of hydrofracturing pipe with sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204386579U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594867A (en) * | 2015-01-06 | 2015-05-06 | 中国科学院武汉岩土力学研究所 | Hydraulic fracturing pipe with sealing device |
-
2015
- 2015-01-06 CN CN201520050423.4U patent/CN204386579U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594867A (en) * | 2015-01-06 | 2015-05-06 | 中国科学院武汉岩土力学研究所 | Hydraulic fracturing pipe with sealing device |
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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: 20150610 Termination date: 20220106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |