CN202970577U - Super drilling jar - Google Patents
Super drilling jar Download PDFInfo
- Publication number
- CN202970577U CN202970577U CN 201220672016 CN201220672016U CN202970577U CN 202970577 U CN202970577 U CN 202970577U CN 201220672016 CN201220672016 CN 201220672016 CN 201220672016 U CN201220672016 U CN 201220672016U CN 202970577 U CN202970577 U CN 202970577U
- Authority
- CN
- China
- Prior art keywords
- seal combination
- connector
- spindle
- scraping ring
- mud
- 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 relates to a super drilling jar composed of an upper connector, a mandril body, an upper mandril, a spline sleeve, a connecting body, a lower mandril, a pressure body, a seal combination, a cone body, a bypass body, a sealing socket, a washing pipe, a balancing piston, a lower connector, a separate thrust collar seal combination, a concave ring seal combination, a lower mud scraping ring and an upper mud scraping ring. The super drilling jar is novel in structure, simple in operation, high in jarring reliability and blocking-eliminating efficiency, capable of effectively preventing and eliminating stuck accidents of a drilling pipe column, and beneficial for smooth operation of oil drilling construction.
Description
Technical field
The utility model relates to a kind of down-hole string anti-sticking instrument for the oil drilling construction operation, belongs to the petroleum drilling engineering technology type.
Background technology
In oil drilling construction operation process, due to many reasons such as complex formation and operations, well drilling pipe column or drill bit often occur meet the accidents such as card, causing smoothly of wellbore construction operation had a strong impact on and endanger.At present, drilling jar is used exactly to the safer preventive action of this type of accident in the scene above drilling tool.
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Summary of the invention
The purpose of this utility model is to provide a kind of reasonable in design, flexible operation is simple, operation is convenient, the jarring reliability is high with boring super bumper jar.
Above-mentioned purpose of the present utility model is achieved in that this kind is comprised of top connection, axle body, upper spindle, spline housing, connector, lower spindle, pressure body, seal combination, cone, bypass valve body, seal receptacle, washing pipe, dummy piston, lower contact, separate thrust collar seal combination, spill circle seal combination, lower mud-scraping ring and upper mud-scraping ring with boring super bumper jar, and its structure, assembled relation are as follows: top connection, upper spindle, lower spindle from top to bottom are connected with screw thread successively; The below of top connection, the outside of upper spindle are provided with the axle body, axle body, spline housing, connector, pressure body, lower contact be from top to bottom successively to be threaded, and is provided with cone, bypass valve body and seal receptacle between upper spindle, connector and pressure body and is fixed on the lower spindle outside by washing pipe; Be provided with dummy piston, separate thrust collar seal combination and spill circle seal combination in chamber between the inboard washing pipe of pressure body and lower contact, be provided with between connector and lower spindle be provided with between lower mud-scraping ring, axle body and upper spindle mud-scraping ring with its outside spline housing by spline joint; Be provided with seal combination in connector; Wherein, pressure body is many steps cylinder body of inner plating network, fills with the hydraulic oil of 150 ℃ of heatproofs in it.Cone, bypass valve body, seal receptacle consist of the damping mechanism of this bumper jar, and cone external diameter and pressure body internal diameter gap are 0.01mm, and pressure body and lower spindle are divided into high pressure chest and low pressure chamber.The cone end face has wide 0.5mm, and the drain pan of dark 0.12 ~ 0.15mm can guarantee good sealing, the flow velocity of stabilizing solution force feed.Dummy piston is that surfaces externally and internally is processed with the high precision dense sealing groove, and separate thrust collar seal combination and spill circle seal combination are housed respectively inside and outside it.Separate thrust collar seal combination, spill circle seal combination are respectively the combined rubber seal that external surface tilts and is spill.
Use and the course of work of this down-hole string anti-sticking instrument are as follows: when drill bit is gone into the well, this kind is arranged on the drill bit top with boring super bumper jar; In drilling process, when drill bit is met card with certain pulling force upper lifting pipe post, upper spindle drives lower spindle and cone, bypass valve body under the pulling force effect, seal receptacle is up, the drain pan of cone end face and seal receptacle form stable draining passage, and control the velocity of displacement of upper spindle and pressure body in the mode of coutroi velocity, in dummy piston equilibrium pressure body this moment and the pressure of low pressure chamber; Open passage when arriving the pressure body off-position, with the energy release of drill string savings, realize driving a jarring force that is four times in pulling force with a little pulling force; Tubing string is transferred, cone is up with respect to seal receptacle again, and passage is opened, and hydraulic oil enters high pressure chest from low pressure chamber, until seal receptacle end face and cone end face seal again, can begin next jarring process.So go round and begin again, jarring repeatedly, thus reach the purpose of anti-sticking, unfreezing.
The utility model is reasonable in design, novel structure, and flexible operation is simple, and jarring reliability and unfreezing efficient are high, utilize it can effectively prevent and remove well drilling pipe column and meet the card accident, are conducive to carrying out smoothly of oil drilling construction operation.
Description of drawings: accompanying drawing is general structure schematic diagram of the present utility model.
The specific embodiment:
Below in conjunction with accompanying drawing, enforcement of the present utility model is illustrated.
As shown in the figure, the utility model is comprised of top connection 1, axle body 2, upper spindle 3, spline housing 4, connector 5, lower spindle 6, pressure body 7, seal combination 8, cone 9, bypass valve body 10, seal receptacle 11, washing pipe 12, dummy piston 13, lower contact 14, separate thrust collar seal combination 15, spill circle seal combination 16, lower mud-scraping ring 17 and upper mud-scraping ring 18, and its structure, assembled relation are as previously mentioned.
Claims (1)
1. one kind with boring super bumper jar, by top connection (1), axle body (2), upper spindle (3), spline housing (4), connector (5), lower spindle (6), pressure body (7), seal combination (8), cone (9), bypass valve body (10), seal receptacle (11), washing pipe (12), dummy piston (13), lower contact (14), separate thrust collar seal combination (15), spill circle seal combination (16), lower mud-scraping ring (17) and upper mud-scraping ring (18) form, it is characterized in that: top connection (1), upper spindle (3), lower spindle (6) from top to bottom is connected with screw thread, top connection (1) below upper spindle (3) outside is provided with axle body (2), from top to bottom successively to be threaded, the spline housing (4) in upper spindle (3) and its outside is by spline joint for axle body (2), spline housing (4), connector (5), pressure body (7), lower contact (14), be provided with seal combination (8) in connector (5), be provided with cone (9), bypass valve body (10) and seal receptacle (11) between connector (5) and pressure body (7), be fixed on lower spindle (6) outside by washing pipe (12), be provided with dummy piston (13) in chamber between the inboard washing pipe of pressure body (7) (12) and lower contact (14), inside and outside separate thrust collar seal combination (15) and the spill circle seal combination (16) of being equipped with respectively of dummy piston (13), be provided with sealing between connector (5) and lower spindle (6) with lower mud-scraping ring (17), be provided with sealing between axle body (2) and upper spindle (3) and use mud-scraping ring (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220672016 CN202970577U (en) | 2012-12-10 | 2012-12-10 | Super drilling jar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220672016 CN202970577U (en) | 2012-12-10 | 2012-12-10 | Super drilling jar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202970577U true CN202970577U (en) | 2013-06-05 |
Family
ID=48511664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220672016 Expired - Fee Related CN202970577U (en) | 2012-12-10 | 2012-12-10 | Super drilling jar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202970577U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452512A (en) * | 2013-09-16 | 2013-12-18 | 慕武 | Ground hydraulic super jar |
-
2012
- 2012-12-10 CN CN 201220672016 patent/CN202970577U/en not_active Expired - Fee Related
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 |
| CN103452512B (en) * | 2013-09-16 | 2018-07-24 | 慕武 | Ground hydraulic super jar |
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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: 20130605 Termination date: 20181210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |