CN202544789U - While-drilling jar - Google Patents
While-drilling jar Download PDFInfo
- Publication number
- CN202544789U CN202544789U CN2012201371293U CN201220137129U CN202544789U CN 202544789 U CN202544789 U CN 202544789U CN 2012201371293 U CN2012201371293 U CN 2012201371293U CN 201220137129 U CN201220137129 U CN 201220137129U CN 202544789 U CN202544789 U CN 202544789U
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- CN
- China
- Prior art keywords
- core shaft
- drilling
- spindle
- outer barrel
- control ring
- 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 - Lifetime
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Abstract
The utility model relates to a while-drilling jar. The while-drilling jar consists of an outer barrel, a lower core shaft, an upper core shaft and a damping control ring, wherein the outer barrel is in a pipe-shaped structure with different inner diameters, the inner diameter of the middle part of the outer barrel is less than the inner diameters of the two ends, and the upper end and the lower end of the outer barrel are connecting joints; the lower core shaft and the upper core shaft are in threaded connection, and a stepped shoulder is arranged in the middle of the upper core shaft; and the inner diameter surface of the damping control ring is provided with an overflowing groove, the inner diameter of the damping control ring is larger than the inner diameter of the lower core shaft, the center of the upper part of the damping control ring is provided with a flare opening, and the damping control ring is arranged in a cavity formed by the lower core shaft, the upper core shaft and the outer barrel. The while-drilling jar has the advantages that in the drilling construction, the while-drilling jar can be combined together with a drilling column; and when the drilling column is lifted and dropped, jarring can be generated repeatedly, and the occurrence of drill-jamming accidents can be avoided.
Description
Technical field:
The utility model relates to a kind of drilling jar, and the releasing tool technical field is used in the down-hole accident processing that belongs in the petroleum drilling engineering.
Background technology:
In the wellbore construction process, lock of tool drilling is recurrent, generally all is to adopt the jarring tool unfreezing.At present, the jarring tool kind is a lot of both at home and abroad, is hydraulic type jarring mode and mechanical jarring mode.But all hydraulic type jarrings are formed by sliding sleeve and damping mechanism, and damping mechanism is brake pad damping or the damping of leather cup rubber, and is fragile under the hot environment of down-hole, cause bumper jar to lose efficacy.ZL200820098543.1 discloses a kind of all-hydraulic double acting drilling jar; Comprise mandrel, down mandrel, middle fluid cylinder, be located in the middle of last intermediate piston, the following fluid cylinder that is located at the following intermediate piston between middle fluid cylinder and the following mandrel, the last fluid cylinder that is connected with middle fluid cylinder one end, is connected between fluid cylinder and the last mandrel with the middle fluid cylinder other end; All be full of hydraulic oil in each fluid cylinder, but its structure is too complicated.
Summary of the invention:
The purpose of the utility model is fragile in order to overcome above-mentioned damping mechanism of the prior art, and the defective that causes bumper jar to lose efficacy provides a kind of drilling jar.
The utility model is made up of urceolus, lower spindle, upper spindle, damping gate ring, and urceolus is interior not isometrical tubular structure, and the center internal diameter is a jointing less than two ends internal diameter, upper/lower terminal; Lower spindle is threaded with upper spindle, and the upper spindle middle part is provided with stepped shoulder; Damping gate ring aperture surface was provided with chute, and its internal diameter is greater than the internal diameter of lower spindle, and damping gate ring central upper portion is a horn mouth, was installed in the chamber of lower spindle and upper spindle and urceolus formation.
Described damping gate ring central upper portion is a horn mouth.
The utility model in wellbore construction, can with drill string assembly together, when the put-on and delegated drill string, can produce jarring repeatedly, avoid the generation of lock of tool drilling.
Description of drawings:
Fig. 1 is the utility model structural representation
The specific embodiment:
As shown in Figure 1, the utility model is made up of urceolus 4, lower spindle 1, upper spindle 2, damping gate ring 3, and urceolus 4 is interior not isometrical tubular structure, and the center internal diameter is a jointing less than two ends internal diameter, upper/lower terminal; Lower spindle 1 is threaded with upper spindle 2, and upper spindle 2 middle parts are provided with stepped shoulder; Damping gate ring 3 aperture surfaces had chute, and its internal diameter is greater than the internal diameter of lower spindle 1, and damping gate ring 3 central upper portion are horn mouth, were installed in the chamber of lower spindle 1 and upper spindle 2 and urceolus 4 formation.
In the wellbore construction process, when lock of tool drilling takes place, on put on axle 2, it is indoor up in urceolus 4 center lumen to drive damping gate ring 3, and crosses chute on sealing damping gate ring 3 aperture surfaces, and the liquid in urceolus 4 upper chamber is compressed; When damping gate ring 3 walks to urceolus 4 upper chamber; Because the internal diameter of urceolus 4 upper chamber is greater than the internal diameter of center chamber; The annular space of the fluid pressure on urceolus 4 tops between urceolus 4 and damping gate ring 3 and lower spindle 1 discharged suddenly; Produce upwards jarring action, reach the purpose of drill pipe release.
Claims (2)
1. drilling jar; Form by urceolus (4), lower spindle (1), upper spindle (2), damping gate ring (3); It is characterized in that: urceolus (4) is interior not isometrical tubular structure, and the center internal diameter is a jointing less than two ends internal diameter, upper/lower terminal; Lower spindle (1) is threaded with upper spindle (2), and upper spindle (2) middle part is provided with stepped shoulder; Damping gate ring (3) aperture surface had chute, and its internal diameter is greater than the internal diameter of lower spindle (1), and damping gate ring (3) central upper portion is a horn mouth, was installed in the chamber of lower spindle (1) and upper spindle (2) and urceolus (4) formation.
2. a kind of drilling jar according to claim 1 is characterized in that: damping gate ring (3) central upper portion is a horn mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201371293U CN202544789U (en) | 2012-04-01 | 2012-04-01 | While-drilling jar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201371293U CN202544789U (en) | 2012-04-01 | 2012-04-01 | While-drilling jar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202544789U true CN202544789U (en) | 2012-11-21 |
Family
ID=47165441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201371293U Expired - Lifetime CN202544789U (en) | 2012-04-01 | 2012-04-01 | While-drilling jar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202544789U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563938A (en) * | 2015-01-04 | 2015-04-29 | 杰瑞能源服务有限公司 | Continuous shocking tool |
| CN111684141A (en) * | 2018-02-07 | 2020-09-18 | 沙特***石油公司 | Intelligent drilling jar |
| CN113279694A (en) * | 2021-06-15 | 2021-08-20 | 成都高峰石油机械有限公司 | Ultrashort bidirectional full-hydraulic drilling jar |
-
2012
- 2012-04-01 CN CN2012201371293U patent/CN202544789U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563938A (en) * | 2015-01-04 | 2015-04-29 | 杰瑞能源服务有限公司 | Continuous shocking tool |
| CN104563938B (en) * | 2015-01-04 | 2017-04-26 | 杰瑞能源服务有限公司 | Continuous shocking tool |
| CN111684141A (en) * | 2018-02-07 | 2020-09-18 | 沙特***石油公司 | Intelligent drilling jar |
| CN113279694A (en) * | 2021-06-15 | 2021-08-20 | 成都高峰石油机械有限公司 | Ultrashort bidirectional full-hydraulic drilling jar |
| CN113279694B (en) * | 2021-06-15 | 2022-05-20 | 成都高峰石油机械有限公司 | Ultrashort two-way full-hydraulic drilling jar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |