CN201212366Y - Piston ring type hydraulic jar - Google Patents
Piston ring type hydraulic jar Download PDFInfo
- Publication number
- CN201212366Y CN201212366Y CNU2008203011065U CN200820301106U CN201212366Y CN 201212366 Y CN201212366 Y CN 201212366Y CN U2008203011065 U CNU2008203011065 U CN U2008203011065U CN 200820301106 U CN200820301106 U CN 200820301106U CN 201212366 Y CN201212366 Y CN 201212366Y
- Authority
- CN
- China
- Prior art keywords
- piston ring
- piston
- axle
- middle cylinder
- cylinder sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a piston ring type hydraulic jar bumper, the structure thereof comprises a mandrel (1), an upper cylinder liner (2), a middle cylinder liner (3) and a lower connector (4), wherein an annular space between the middle cylinder liner (3) and the mandrel (1) forms a pressure-out cavity (11) and a release cavity (12), hydraulic oil (12) is filled up in the annular space between the middle cylinder liner (3) and the mandrel (1), a piston (5) is installed on the mandrel (1), a piston ring groove (9) is arranged on the piston (5), a piston ring (6) is positioned in the piston ring groove (9), and a piston ring opening (8) is arranged on the piston ring (6). The utility model has the advantages that the pressure-out delay function can be provided to ensure fully elastic deformation of the upper drilling tool so as to obtain greater impact dynamic load.
Description
Technical field
The utility model relates to the piston ring type hydraulic shock device that a kind of oil drilling is used, and belongs to the bumper jar technical field.
Background technology
In drilling process, because quality of mud fluid is bad, the accident that drilling tool is blocked usually takes place in many-sided reasons such as geological structure complexity and operating technology measure error.Bit freezing is very big to drilling well work influence, endanger also very deeply, therefore needs to adopt various salvaging jarring tools solution lock of tool drilling.Existing bumper jar has only the transient solution lock function, and the delay function that builds the pressure can not be provided, and makes the top drilling tool produce the sufficient elasticity distortion, to obtain bigger impact dynamic loading.
Summary of the invention
The purpose of this utility model is: provide a kind of piston ring type hydraulic shock device that can provide when spraining calendering, obtain bigger dynamic loading, to overcome the deficiencies in the prior art.
The utility model is to constitute like this: its structure comprises axle, goes up cylinder sleeve, middle cylinder sleeve and lower contact, the annular space of middle cylinder sleeve and axle constitutes build the pressure chamber and release chamber, annular space in middle cylinder sleeve and axle is filled with hydraulic oil, piston is installed on axle, on piston, be provided with piston ring groove, be placed with piston ring at piston ring groove, piston ring is provided with gap-clearance of piston rings.
Above-mentioned piston ring type hydraulic shock device, the width of piston ring groove be greater than the width of piston ring, and have the piston ring side channel in a side of piston ring groove bottom, and the piston ring side channel is communicated with the side channel hole.
Above-mentioned piston ring type hydraulic shock device, the gap-clearance of piston rings width of piston ring is 0.02mm～15mm.
The utility model is when lifting axle, the drive piston moves upward, piston ring is attached to the smooth side of piston ring groove, the incompressible gap-clearance of piston rings leakage in a small amount that has only from micro gap of hydraulic oil, moving upward of piston delayed in resistance, when piston presses the chamber to go upward to the release chamber from spraining, for top drilling tool elastic deformation provides time enough, the constraint of hydraulic oil is disengaged, the elastic potential energy that the top drilling tool is stored obtains to discharge, huge dynamic loading drives the jarring pad and moves upward, and hits in the lower surface of last cylinder sleeve, produces jarring.Compare with prior art, the utlity model has following advantage: the delay function that builds the pressure can be provided, make the top drilling tool produce the sufficient elasticity distortion, to obtain bigger impact dynamic loading.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is the structural representation of the utility model piston ring;
Accompanying drawing 3 is the utility model structure of piston schematic diagram.
Being labeled as in the accompanying drawing: cylinder sleeve, 4-lower contact, 5-piston, 6-piston ring, 7-jarring pad, 8-gap-clearance of piston rings, 9-piston ring groove, 10-piston ring side channel, 11-side channel hole, 12 hydraulic oil, 13-sprain and press chamber, 14-to discharge the chamber among 1-axle, the last cylinder sleeve of 2-, the 3-.
The specific embodiment:
Embodiment of the present utility model: as shown in Figure 1, the structure of piston ring type hydraulic shock device comprises axle 1, axle 1 outer cylinder sleeve 2, the middle cylinder sleeve 3 installed, middle cylinder sleeve 3 is connected with lower contact 4, being divided between middle cylinder sleeve 3 and the axle 1 sprains presses chamber 13 and discharges chamber 14, between middle cylinder sleeve 3 and axle 1, inject hydraulic oil 12, piston 5 is installed on axle 1, piston ring groove 9 is set on piston 5, in piston ring groove 9, be with piston ring 6, gap-clearance of piston rings 8 is set on the piston ring 6, and gap-clearance of piston rings 8 width are 0.02mm～15mm, and jarring pad 7 is installed above piston 5.
The width of piston ring groove 9 is greater than the width of piston ring 6, and the side in piston ring groove 9 bottoms has piston ring side channel 10, and piston ring side channel 10 is communicated with several side channel holes 11.
During work, lower contact 4 connects by the bit freezing post, on carry drilling tool, making axle 1 drive piston 5 moves upward, this moment, piston ring 6 was attached to the smooth side of piston ring groove 9, hydraulic oil 12 can only be by gap-clearance of piston rings 8 small leakage on the piston ring 6, when piston 5 presses chamber 13 to go upward to release chamber 14 from spraining, for top drilling tool elastic deformation provides time enough, the constraint of hydraulic oil 12 is disengaged, the elastic potential energy that the top drilling tool is stored obtains to discharge, and jarring pad 7 upwards hits in the lower surface of last cylinder sleeve 2, produces jarring.
When needing jarring once more, press down axle 1 than jogging speed, this moment, piston ring 6 was attached to a side of piston ring side channel 10, and hydraulic oil 12 can be by smooth and easy the flowing through in space of side channel hole 11, piston ring side channel 10, piston ring 6 and piston ring groove 9 bottoms and side, and axle 1 is returned to the jarring initial position.
Claims (3)
- [claim 1] a kind of piston ring type hydraulic shock device, its structure comprises axle (1), goes up cylinder sleeve (2), middle cylinder sleeve (3) and lower contact (4), middle cylinder sleeve (3) constitutes build the pressure chamber (11) and release chamber (12) with the annular space of axle (1), fill with hydraulic oil (12) at the middle cylinder sleeve (3) and the annular space of axle (1), it is characterized in that: piston (5) is installed on axle (1), on piston (5), be provided with piston ring groove (9), be placed with piston ring (6) at piston ring groove (9), piston ring (6) is provided with gap-clearance of piston rings (8).
- [claim 2] piston ring type according to claim 1 hydraulic shock device, it is characterized in that: the width of piston ring groove (9) is greater than the width of piston ring (6), and the side in piston ring groove (9) bottom has piston ring side channel (10), and piston ring side channel (10) is communicated with side channel hole (11).
- [claim 3] piston ring type according to claim 1 hydraulic shock device is characterized in that: gap-clearance of piston rings (8) width of piston ring (6) is 0.02mm～15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203011065U CN201212366Y (en) | 2008-06-11 | 2008-06-11 | Piston ring type hydraulic jar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203011065U CN201212366Y (en) | 2008-06-11 | 2008-06-11 | Piston ring type hydraulic jar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201212366Y true CN201212366Y (en) | 2009-03-25 |
Family
ID=40496535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008203011065U Expired - Fee Related CN201212366Y (en) | 2008-06-11 | 2008-06-11 | Piston ring type hydraulic jar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201212366Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712279A (en) * | 2015-03-03 | 2015-06-17 | 四机赛瓦石油钻采设备有限公司 | Coiled tubing hydraulic double-way jar |
| CN106812477A (en) * | 2015-11-30 | 2017-06-09 | 中国石油天然气股份有限公司 | A kind of surface bumper jar |
| CN109630056A (en) * | 2019-01-24 | 2019-04-16 | 西安石竹能源科技有限公司 | A kind of movable sealing structure of the mandrel of bumper jar and bumper jar based on the structure |
-
2008
- 2008-06-11 CN CNU2008203011065U patent/CN201212366Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712279A (en) * | 2015-03-03 | 2015-06-17 | 四机赛瓦石油钻采设备有限公司 | Coiled tubing hydraulic double-way jar |
| CN104712279B (en) * | 2015-03-03 | 2017-01-18 | 四机赛瓦石油钻采设备有限公司 | Coiled tubing hydraulic double-way jar |
| CN106812477A (en) * | 2015-11-30 | 2017-06-09 | 中国石油天然气股份有限公司 | A kind of surface bumper jar |
| CN106812477B (en) * | 2015-11-30 | 2018-11-16 | 中国石油天然气股份有限公司 | A kind of surface bumper jar |
| CN109630056A (en) * | 2019-01-24 | 2019-04-16 | 西安石竹能源科技有限公司 | A kind of movable sealing structure of the mandrel of bumper jar and bumper jar based on the structure |
| CN109630056B (en) * | 2019-01-24 | 2023-09-01 | 西安石竹能源科技有限公司 | Dynamic seal structure of mandrel of jar and jar based on dynamic seal structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUIZHOU GAOFENG PETROLEUM MACHINERY CO., LTD. Free format text: FORMER NAME: GUIZHOU GAOFENG PETROLEUM MACHINERY LIMITED LIABILITY COMPANY |
|
| CP03 | Change of name, title or address |
Address after: Guizhou Guizhou Pingba Pingba County, P.O. Box 32, postal code: 561108 Patentee after: Guizhou Gaofeng Petroleum Machinery Co., Ltd. Address before: Guizhou Guizhou Pingba Pingba County, P.O. Box 32, postal code: 561108 Patentee before: Guizhou Gaofeng Petroleum Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090325 Termination date: 20150611 |
|
| EXPY | Termination of patent right or utility model |