CN203176017U - Underground hydraulic accumulator - Google Patents
Underground hydraulic accumulator Download PDFInfo
- Publication number
- CN203176017U CN203176017U CN2013200332915U CN201320033291U CN203176017U CN 203176017 U CN203176017 U CN 203176017U CN 2013200332915 U CN2013200332915 U CN 2013200332915U CN 201320033291 U CN201320033291 U CN 201320033291U CN 203176017 U CN203176017 U CN 203176017U
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- inner cylinder
- cylinder sleeve
- energy
- shell
- hydraulic pressure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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Abstract
The utility model discloses an underground hydraulic accumulator. The underground hydraulic accumulator can convert mechanical energy of a hydraulic device into potential energy of a spring and store the potential energy. When energy is output, an energy storing cavity is communicated with the interior of an inner sleeve of an oil cylinder. Thus, when the energy is output, the pressure of output hydraulic oil completely depends on restoring force of the spring and is not affected by a well depth and other factors. Output energy is even, stable and easy to control, in addition, mechanical energy storing devices can be stored for a long time in the poor underground environment, and therefore the underground hydraulic accumulator is particularly suitable for being used as an energy outputting device in the pit.
Description
Technical field
The utility model relates to technical field of petroleum extraction, particularly a kind of underground hydraulic pressure accumulator.
Background technique
In the prior art, the pressure break sliding sleeve is generally adopted in the wellfracturing operation, the pressure break sliding sleeve generally adopts the working method of pitching to control the unlatching of sliding sleeve, but there are shortcomings such as cost height, complicated operation, labor intensity be big in the working method of pitching, so people have invented automatically controlled pressure break sliding sleeve recently again, automatically controlled pressure break sliding sleeve has big latus rectum, operation technique is simple, success rate is high, Security is good, realize advantages such as multistage and without hindrance operation easily.Automatically controlled pressure break sliding sleeve is by the unlatching of electronic control unit control pressure break sliding sleeve, the vacuum chamber device is exactly the device that the energy is provided for the switch of automatically controlled pressure break sliding sleeve, but existing vacuum chamber device in use, pressure in the vacuum chamber device can change along with the variation of following well depth, the energy that obtains is subjected to the influence of ambient pressure bigger, is difficult to realize control accurately and effectively in deep-well.Provide the energy so wish a kind of new device of exploitation for automatically controlled pressure break sliding sleeve.
The model utility content
In order to solve the technical problem that the vacuum chamber device is not suitable for using in the prior art in deep-well, the utility model provides a kind of underground hydraulic pressure accumulator, this underground hydraulic pressure accumulator can convert the mechanical energy of hydraulic pressure installation the potential energy of spring to and store, when energy is exported, the energy stabilization of output, control and not being subjected to or the influence of other factors easily are adapted at the down-hole and especially use as energy output device in the deep-well.
The utility model for the technological scheme that solves its technical problem employing is: a kind of underground hydraulic pressure accumulator, the shell and the oily inner cylinder sleeve that is sheathed on the tubular in the shell that comprise tubular, the two ends of shell are corresponding connection with the two ends of oily inner cylinder sleeve respectively, between shell and oily inner cylinder sleeve, form annular holding space, in annular holding space, the shoe cream room that axially is connected with ring seal in turn along shell, the energy-storing chamber of the oil cylinder piston of annular and annular, be provided with the spring that can promote oil cylinder piston compression shoe cream room in the energy-storing chamber, shoe cream room can with the external communications of described underground hydraulic pressure accumulator, the internal communication of energy-storing chamber and oily inner cylinder sleeve, the inside of oily inner cylinder sleeve is along the axial perforation of oily inner cylinder sleeve.
This underground hydraulic pressure accumulator injects hydraulic oil in from the duct to shoe cream room when the needs stored energy, the shoe cream room volume increases and promotes oil cylinder piston compression spring, and mechanical energy converts the potential energy of spring in this process; When needs output energy, open in the duct that control is communicated with shoe cream room, and the restoring force of spring can promote oil cylinder piston to be made the smaller volume of shoe cream room and discharge the interior hydraulic oil of shoe cream room, and the potential energy converting and energy of spring becomes the mechanical energy of hydraulic oil.The internal communication of energy-storing chamber and oily inner cylinder sleeve, so when energy was exported, the pressure of the hydraulic oil of output depended on the restoring force of spring fully, was not subjected to the influence of well depth or other factors, stable, the control easily of the energy even of output is adapted at the down-hole and uses as energy output device.
One end of preferred shell is provided with the valve piece of tubular, and valve piece and shoe cream room are adjacent, and an end of shell and an end of oily inner cylinder sleeve are tightly connected by the valve piece, and the inside of oily inner cylinder sleeve and valve piece inside axially connect successively along oily inner cylinder sleeve.
The inwall of one end of preferred shell is connected with the outer wall thread of valve piece one end, and the outer wall of an end of oily inner cylinder sleeve is connected with the inwall of valve piece one end.
The other end of preferred shell is provided with the joint of tubular, joint and energy-storing chamber are adjacent, the inwall of the other end of shell is connected by thread seal with the outer wall of joint one end, in the end that is socketed on joint of the other end of oil inner cylinder sleeve, the inside of joint inside and oily inner cylinder sleeve axially connects successively along oily inner cylinder sleeve.
One end of preferred spring is connected with an end of joint, and the other end of spring is connected with an end of oil cylinder piston.
The inside of preferred energy-storing chamber and oily inner cylinder sleeve is communicated with slit between the joint by oily inner cylinder sleeve.
Be provided with the duct in the sidewall of preferred valve piece, shoe cream room can passing hole channel and the external communications of described underground hydraulic pressure accumulator.
Be provided with guidance tape and Glais ring between preferred shell and the oil cylinder piston, be provided with guidance tape and Glais ring between oil cylinder piston and the oily inner cylinder sleeve.
Be provided with seal ring between preferred shell and the valve piece, be provided with seal ring between oily inner cylinder sleeve and the valve piece.
The beneficial effects of the utility model are: this underground hydraulic pressure accumulator can convert the mechanical energy of hydraulic pressure installation the potential energy of spring to and store, when energy is exported, the internal communication of energy-storing chamber and oily inner cylinder sleeve, so when energy is exported, the pressure of the hydraulic oil of output depends on the restoring force of spring fully, be not subjected to the influence of well depth or other factors, stable, the control easily of the energy even of output, and mechanical energy storage device utilization preservation for a long time in the rugged environment of down-hole, so be particularly suitable for using as energy output device in the down-hole.
Description of drawings
Below in conjunction with accompanying drawing underground hydraulic pressure accumulator described in the utility model is described in further detail.
Fig. 1 is the structural representation of underground hydraulic pressure accumulator described in the utility model.
1. shells wherein, 2. oil cylinder piston, 3. oily inner cylinder sleeve, 4. shoe cream room, 5. joint, 6. duct, 7. spring, 8. valve piece, 9. seal ring, 10. guidance tape, 11. Glais rings, 12. annular holding spaces, 13. energy-storing chambers.
Embodiment
Below in conjunction with accompanying drawing underground hydraulic pressure accumulator described in the utility model is elaborated.A kind of underground hydraulic pressure accumulator, the shell 1 and the oily inner cylinder sleeve 3 that is sheathed on the tubular in the shell 1 that comprise tubular, the two ends of shell 1 are corresponding connection with the two ends of oily inner cylinder sleeve 3 respectively, between shell 1 and oily inner cylinder sleeve 3, form annular holding space 12, in annular holding space 12, the shoe cream room that axially is connected with ring seal in turn 4 along shell 1, the oil cylinder piston 2 of annular and the energy-storing chamber 13 of annular, be provided with the spring 7 that can promote oil cylinder piston 2 compression shoe cream rooms 4 in the energy-storing chamber 13, shoe cream room 4 can with the external communications of described underground hydraulic pressure accumulator, the internal communication of energy-storing chamber 13 and oily inner cylinder sleeve 3, the inside of oil inner cylinder sleeve 3 is along the axial perforation of oily inner cylinder sleeve 3, as shown in Figure 1.
This underground hydraulic pressure accumulator is when the needs stored energy, and 6 inject hydraulic oil in shoe cream room 4 from the duct, and shoe cream room 4 volumes increase promotion oil cylinder piston 2 compression springs 7, and mechanical energy converts the potential energy of spring in this process; When needs output energy, open in the duct 6 that control is communicated with shoe cream room 4, and the restoring force of spring 7 can promote oil cylinder piston 2 to be made the smaller volume of shoe cream room 4 and discharge the interior hydraulic oil of shoe cream room, and the potential energy converting and energy of spring 7 becomes the mechanical energy of hydraulic oil.The internal communication of energy-storing chamber 13 and oily inner cylinder sleeve 3, so when energy was exported, the pressure of the hydraulic oil of output depended on the restoring force of spring 7 fully, was not subjected to the influence of well depth or other factors, stable, the control easily of the energy even of output is adapted at the down-hole and uses as energy output device.
One end of shell 1 is provided with the valve piece 8 of tubular, and valve piece 8 is adjacent with shoe cream room 4, and an end of shell 1 and an end of oily inner cylinder sleeve 3 are tightly connected by valve piece 8, and the inside of oily inner cylinder sleeve 3 and valve piece 8 inside axially connect successively along oily inner cylinder sleeve 3.Because the space of down-hole is limited, in order to take full advantage of the space as much as possible, when this underground hydraulic pressure accumulator uses in automatically controlled pressure break sliding sleeve, the setting of can connecting with automatically controlled pressure break sliding sleeve, for automatically controlled pressure break sliding sleeve provides energy, valve piece 8 is exactly the part of pressure break sliding sleeve outer sleeve.
The inwall of one end of shell 1 is connected with the outer wall thread of valve piece 8 one ends, and the outer wall of an end of oily inner cylinder sleeve 3 is connected with the inwall of valve piece 8 one ends.
For the ease of being connected with other device, the other end of shell 1 is provided with the joint 5 of tubular, joint 5 is adjacent with energy-storing chamber 13, the inwall of the other end of shell 1 is connected by thread seal with the outer wall of joint 5 one ends, in the end that is socketed on joint 5 of the other end of oil inner cylinder sleeve 3, inside axially the connecting successively along oily inner cylinder sleeve 3 of joint 5 inside and oily inner cylinder sleeve 3.The inside conducting successively of the inside of the inside of joint 5, oily inner cylinder sleeve 3, valve piece 8 like this.
One end of spring 7 is connected with an end of joint 5, and the other end of spring 7 is connected with an end of oil cylinder piston 2.The inside of energy-storing chamber 13 and oily inner cylinder sleeve 3 is communicated with slit between the joint 5 by oily inner cylinder sleeve 3.
Be provided with duct 6 in the sidewall of valve piece 8, shoe cream room 4 can passing hole channel 6 with the external communications of described underground hydraulic pressure accumulator.Can passing hole channel 6 inject hydraulic oil in shoe cream room 4, when the volume of shoe cream room 4 was compressed, hydraulic oil also can be from the duct 6 be discharged, and duct 6 is arranged in the sidewall of valve piece 8, can protect duct 6 not to be damaged.
Be provided with guidance tape 10 and Glais ring 11 between shell 1 and the oil cylinder piston 2, be provided with guidance tape 10 and Glais ring 11 between oil cylinder piston 2 and the oily inner cylinder sleeve 3.
Be provided with seal ring 9 between shell 1 and the valve piece 8, be provided with seal ring 9 between oily inner cylinder sleeve 3 and the valve piece 8.To guarantee the sealing of shoe cream room 4.
This underground hydraulic pressure accumulator can convert the mechanical energy of hydraulic pressure installation the potential energy of spring to and store, when energy is exported, the internal communication of energy-storing chamber and oily inner cylinder sleeve, so when energy is exported, the pressure of the hydraulic oil of output depends on the restoring force of spring fully, be not subjected to the influence of well depth or other factors, stable, the control easily of the energy even of output, and mechanical energy storage device utilization preservation for a long time in the rugged environment of down-hole, so be particularly suitable for using as energy output device in the down-hole.
The above; only be specific embodiment of the utility model, can not limit the scope that model utility is implemented with it, so the displacement of its equivalent assemblies; or according to equivalent variations and modification that the utility model scope of patent protection is done, all should still belong to the category that this patent is contained.
Claims (9)
1. underground hydraulic pressure accumulator, it is characterized in that: comprise the shell (1) of tubular and be sheathed on the oily inner cylinder sleeve (3) of the tubular in the shell (1), the two ends of shell (1) respectively with the corresponding connection in the two ends of oily inner cylinder sleeve (3), between shell (1) and oily inner cylinder sleeve (3), form annular holding space (12), in annular holding space (12), the shoe cream room that axially is connected with ring seal in turn (4) along shell (1), the energy-storing chamber (13) of the oil cylinder piston (2) of annular and annular, be provided with the spring (7) that can promote oil cylinder piston (2) compression shoe cream room (4) in the energy-storing chamber (13), shoe cream room (4) can with the external communications of described underground hydraulic pressure accumulator, the internal communication of energy-storing chamber (13) and oily inner cylinder sleeve (3), the inside of oily inner cylinder sleeve (3) is along the axial perforation of oily inner cylinder sleeve (3).
2. underground hydraulic pressure accumulator according to claim 1, it is characterized in that: an end of shell (1) is provided with the valve piece (8) of tubular, valve piece (8) is adjacent with shoe cream room (4), one end of one end of shell (1) and oily inner cylinder sleeve (3) is tightly connected by valve piece (8), inner axially the connecting successively along oily inner cylinder sleeve (3) of the inside of oily inner cylinder sleeve (3) and valve piece (8).
3. underground hydraulic pressure accumulator according to claim 2, it is characterized in that: the inwall of an end of shell (1) is connected with the outer wall thread of valve piece (8) one ends, and the outer wall of an end of oily inner cylinder sleeve (3) is connected with the inwall of valve piece (8) one ends.
4. underground hydraulic pressure accumulator according to claim 2, it is characterized in that: the other end of shell (1) is provided with the joint (5) of tubular, joint (5) is adjacent with energy-storing chamber (13), the inwall of the other end of shell (1) is connected by thread seal with the outer wall of joint (5) one ends, in the end that is socketed on joint (5) of the other end of oil inner cylinder sleeve (3), the inside of joint (5) inside and oily inner cylinder sleeve (3) axially connects successively along oily inner cylinder sleeve (3).
5. underground hydraulic pressure accumulator according to claim 4, it is characterized in that: an end of spring (7) is connected with an end of joint (5), and the other end of spring (7) is connected with an end of oil cylinder piston (2).
6. underground hydraulic pressure accumulator according to claim 4 is characterized in that: the inside of energy-storing chamber (13) and oily inner cylinder sleeve (3) is communicated with slit between the joint (5) by oily inner cylinder sleeve (3).
7. underground hydraulic pressure accumulator according to claim 1 is characterized in that: be provided with duct (6) in the sidewall of valve piece (8), shoe cream room (4) can passing hole channel (6) and the external communications of described underground hydraulic pressure accumulator.
8. underground hydraulic pressure accumulator according to claim 1, it is characterized in that: be provided with guidance tape (10) and Glais ring (11) between shell (1) and the oil cylinder piston (2), be provided with guidance tape (10) and Glais ring (11) between oil cylinder piston (2) and the oily inner cylinder sleeve (3).
9. underground hydraulic pressure accumulator according to claim 2 is characterized in that: be provided with seal ring (9) between shell (1) and the valve piece (8), be provided with seal ring (9) between oily inner cylinder sleeve (3) and the valve piece (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200332915U CN203176017U (en) | 2013-01-22 | 2013-01-22 | Underground hydraulic accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200332915U CN203176017U (en) | 2013-01-22 | 2013-01-22 | Underground hydraulic accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203176017U true CN203176017U (en) | 2013-09-04 |
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ID=49072720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200332915U Expired - Fee Related CN203176017U (en) | 2013-01-22 | 2013-01-22 | Underground hydraulic accumulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203176017U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047200A (en) * | 2013-01-22 | 2013-04-17 | 中国石油天然气股份有限公司 | Underground hydraulic energy accumulator |
| CN106837245A (en) * | 2015-12-03 | 2017-06-13 | 中国石油化工股份有限公司 | For the accumulator and its application method of underground work |
| CN113431507A (en) * | 2021-07-31 | 2021-09-24 | 焦作市恒利水文地质工程有限责任公司 | Hydraulic built-in reducing joint |
-
2013
- 2013-01-22 CN CN2013200332915U patent/CN203176017U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047200A (en) * | 2013-01-22 | 2013-04-17 | 中国石油天然气股份有限公司 | Underground hydraulic energy accumulator |
| CN106837245A (en) * | 2015-12-03 | 2017-06-13 | 中国石油化工股份有限公司 | For the accumulator and its application method of underground work |
| CN106837245B (en) * | 2015-12-03 | 2019-01-01 | 中国石油化工股份有限公司 | Accumulator and its application method for underground work |
| CN113431507A (en) * | 2021-07-31 | 2021-09-24 | 焦作市恒利水文地质工程有限责任公司 | Hydraulic built-in reducing joint |
| CN113431507B (en) * | 2021-07-31 | 2023-10-20 | 焦作市恒利水文地质工程有限责任公司 | Hydraulic built-in reducing joint |
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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: 20130904 Termination date: 20220122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |