CN202596636U - High-temperature hydraulic bumper jar - Google Patents
High-temperature hydraulic bumper jar Download PDFInfo
- Publication number
- CN202596636U CN202596636U CN 201220235540 CN201220235540U CN202596636U CN 202596636 U CN202596636 U CN 202596636U CN 201220235540 CN201220235540 CN 201220235540 CN 201220235540 U CN201220235540 U CN 201220235540U CN 202596636 U CN202596636 U CN 202596636U
- Authority
- CN
- China
- Prior art keywords
- valve
- urceolus
- outer sleeve
- spline
- mandrel
- 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 high-temperature hydraulic bumper jar applied to a tubular column bumping jam release in the testing field of well drilling, well repairing and oil testing of oilfield high-pressure deep well. The high-temperature hydraulic bumper jar comprises an upper joint, wherein the lower end of the upper joint is in threaded connection with a spline mandrel; the lower end of the spline mandrel is in threaded connection with an oil chamber mandrel; the lower end of the oil chamber mandrel is in threaded connection with a lower mandrel; a spline pup joint is sleeved outside the spline mandrel; the lower end of the spline pup joint is in threaded connection with a spline outer sleeve; the lower end of the spline outer sleeve is in threaded connection with a connecting outer sleeve; an annular cavity is arranged between the connecting outer sleeve and the oil chamber mandrel; a sealing plate root group is arranged between the connecting outer sleeve and the oil chamber mandrel; the lower end of the connecting outer sleeve is in threaded connection with a valve outer sleeve; a valve seat, a valve bush and a delay valve are arranged between the valve outer sleeve and the oil chamber mandrel; a balance piston is arranged between the valve outer sleeve and the lower mandrel; the lower end of the valve outer sleeve is in threaded connection with a lower joint; and the connecting outer sleeve is provided with a pressure balance hole communicating through the annular cavity. The high-temperature hydraulic bumper jar, disclosed by the utility model, has the advantages of improving performances thereof and being suitable to be used in the occasion when downwards drilling encounters barriers or other occasions needing downwards-striking and bumping.
Description
Technical field
Tubing string jarring releasing in drilling well, well workover and the formation testing field tests of the utility model application and oil field high pressure and deep well.
Background technology
Along with going deep into of oil exploration, the degree of depth of drilling well, well workover and formation testing operation is more and more darker, and formation temperature is increasingly high, brings very big influence for the performance of homemade hydraulic pressure bumper sub.2007, understand in the 3 well well workover fishing processes at China Petrochemical Industry Xinjiang district high pressure and deep well, homemade hydraulic pressure bumper sub engagement with the fish, repeatable operation can not produce effective jarring for several times, brings difficulty for carrying out of salvage.Through analyzing: too high annular space liquid column hydrostatic pressure, cause on the bumper jar packing group to damage because of pressure reduction is excessive; Too high formation temperature has been accelerated the seepage velocity of hydraulic oil in the grease chamber again, makes effectively accumulation of energy jarring of bumper jar, brings potential safety hazard to job execution.
Summary of the invention
The purpose of the utility model is in order to overcome the deficiency of prior art, the high temperature hydraulic pressure bumper sub that provides a kind of performance to be improved.
The purpose of the utility model is achieved in that high temperature hydraulic pressure bumper sub, comprises top connection, the lower end of the top connection splined mandrel that is threaded, the lower end of the splined mandrel grease chamber's axle that is threaded, the lower end of the grease chamber's axle lower spindle that is threaded; Said splined mandrel is nested with the spline short circuit outward; The lower end of the spline short circuit spline urceolus that is threaded, the lower end of spline urceolus are threaded and one connect urceolus, connect between urceolus and the grease chamber's axle toroidal cavity is set; Connect between urceolus and the grease chamber's axle sealed packing group is set; The lower end that the connects urceolus valve urceolus that is threaded is provided with valve seat, valve liner and time-delay valve between valve urceolus and the grease chamber's axle, two oil filler plugs of connection on the valve urceolus; Between valve urceolus and the lower spindle dummy piston is set, the lower contact that is threaded of the lower end of valve urceolus; The pressure compensation opening that communicates with toroidal cavity is set on the said connection urceolus.
The principle of the utility model: in case tubing string is blocked in work progress; Press down lotus and act in the top connection, under the control in grease chamber's valve and the accurate gap of valve urceolus, the hydraulic oil of lower oil chamber's (cavity of time-delay valve below) lining is to the slow seepage flow of upper chamber (cavity of time-delay valve top); Press down load and store with regard to the elastic potential energy that is converted into tubing string this moment; After valve moved to big grease chamber, rear portion, grease chamber, the pressure of hydraulic oil discharged suddenly, the rapid descending generation jarring of tubing string.
The utility model is connecting tonnage balance pipe on the urceolus, eliminates the influence of liquid column hydrostatic pressure to packing group on the bumper jar; And, select methods such as special high-temperature hydraulic oil and fluorine rubber seal element for use through improving the grinding precision of time-delay valve and valve seat, eliminated high temperature to the bumper jar Effect on Performance.The utility model is improved the performance of the bumper sub of bumper jar under the hydraulic pressure through improving, and suitable slacking off or other need hit the vibrations occasion down and use.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Among the figure, 1 top connection, 2 splined mandrels, 3 sealed packing groups, 4 spline short circuits, 5 spline urceolus; 6 connect urceolus, 7 grease chamber's axles, 8 valve urceolus, 9 time-delay valves, 10 oil filler plugs, 11 dummy pistons; 12 lower spindles, 13 lower contacts, 14 valve seats, 15 valve liners, 16 toroidal cavities, 17 pressure compensation openings.
The specific embodiment
As shown in Figure 1, for high temperature hydraulic pressure bumper sub, comprise top connection 1, the lower end of top connection 1 splined mandrel 2 that is threaded, the lower end of the splined mandrel 2 grease chamber's axle 7 that is threaded, the lower end of grease chamber's axle 7 lower spindle 12 that is threaded.The splined mandrel 2 outer spline short circuits 4 that are nested with; The lower end of the spline short circuit 4 spline urceolus 5 that is threaded; The lower end of spline urceolus 5 is threaded and one connects urceolus 6, connects between urceolus 6 and the grease chamber's axle 7 toroidal cavity 16 is set, and connects the pressure compensation opening 17 that setting communicates with toroidal cavity 16 on the urceolus 6.Connect between urceolus 6 and the grease chamber's axle 7 sealed packing group 3 is set; The lower end that the connects urceolus 6 valve urceolus 8 that is threaded; Valve seat 14, valve liner 15 and time-delay valve 9 are set between valve urceolus 8 and the grease chamber's axle 7; Connect two oil filler plugs 10 on the valve urceolus 8, between valve urceolus 8 and the lower spindle 12 dummy piston 11 is set, the lower contact 13 that is threaded of the lower end of valve urceolus 8.
Claims (1)
1. high temperature hydraulic pressure bumper sub comprises top connection, the lower end of the top connection splined mandrel that is threaded, the lower end of the splined mandrel grease chamber's axle that is threaded, the lower end of the grease chamber's axle lower spindle that is threaded; Said splined mandrel is nested with the spline short circuit outward; The lower end of the spline short circuit spline urceolus that is threaded, the lower end of spline urceolus are threaded and one connect urceolus, connect between urceolus and the grease chamber's axle toroidal cavity is set; Connect between urceolus and the grease chamber's axle sealed packing group is set; The lower end that the connects urceolus valve urceolus that is threaded is provided with valve seat, valve liner and time-delay valve between valve urceolus and the grease chamber's axle, two oil filler plugs of connection on the valve urceolus; Between valve urceolus and the lower spindle dummy piston is set, the lower contact that is threaded of the lower end of valve urceolus; It is characterized in that: the pressure compensation opening that communicates with toroidal cavity is set on the said connection urceolus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220235540 CN202596636U (en) | 2012-05-24 | 2012-05-24 | High-temperature hydraulic bumper jar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220235540 CN202596636U (en) | 2012-05-24 | 2012-05-24 | High-temperature hydraulic bumper jar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202596636U true CN202596636U (en) | 2012-12-12 |
Family
ID=47314183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220235540 Expired - Fee Related CN202596636U (en) | 2012-05-24 | 2012-05-24 | High-temperature hydraulic bumper jar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202596636U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452512A (en) * | 2013-09-16 | 2013-12-18 | 慕武 | Ground hydraulic super jar |
| CN104234654A (en) * | 2014-09-12 | 2014-12-24 | 崔泽庚 | Underground hydraulic jarring stuck releasing device |
-
2012
- 2012-05-24 CN CN 201220235540 patent/CN202596636U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452512A (en) * | 2013-09-16 | 2013-12-18 | 慕武 | Ground hydraulic super jar |
| CN103452512B (en) * | 2013-09-16 | 2018-07-24 | 慕武 | Ground hydraulic super jar |
| CN104234654A (en) * | 2014-09-12 | 2014-12-24 | 崔泽庚 | Underground hydraulic jarring stuck releasing 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: 20121212 Termination date: 20150524 |
|
| EXPY | Termination of patent right or utility model |