CN214170487U - Underground continuous downward jarring stuck releasing device - Google Patents
Underground continuous downward jarring stuck releasing device Download PDFInfo
- Publication number
- CN214170487U CN214170487U CN202023265319.7U CN202023265319U CN214170487U CN 214170487 U CN214170487 U CN 214170487U CN 202023265319 U CN202023265319 U CN 202023265319U CN 214170487 U CN214170487 U CN 214170487U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- valve rod
- threaded connection
- continuous downward
- valve seat
- 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.)
- Withdrawn - After Issue
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 4
- 238000007790 scraping Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 12
- 230000035939 shock Effects 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011064 split stream procedure Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Images
Abstract
The utility model discloses a continuous downward jarring unfreezing device in the pit, which comprises an outer cylinder part and a mandrel part, wherein the outer cylinder part comprises an upper joint, an upper sleeve, an upper connector, a middle sleeve, a lower connector and a spline housing which are sequentially connected together by screw threads from top to bottom; the spindle part comprises a shunting cap in threaded connection with an inner hole of the upper joint and a valve rod penetrating through the upper sleeve and the upper connecting body, a blind hole is formed in the center of the shunting cap, shunting holes are formed in the side wall of the blind hole, the valve rod is of a step shaft structure with gradually reduced outer diameter from top to bottom, and an upper centering sleeve is fixedly mounted at the upper end of a large shaft of the valve rod. The utility model can effectively improve the releasing success rate and provide a reliable releasing tool for the oil field; and the utility model overcomes need carry out the problem that the frequency matching just can produce effective jarring under the different discharge capacities, can all produce continuous jarring under arbitrary discharge capacity.
Description
Technical Field
The utility model relates to a continuous downward jarring unfreezing device in pit belongs to oil field downhole tool technical field.
Background
The jar is separated and is stuck the instrument that the drilling accident was stuck in the prevention and processing in the oil gas exploration exploitation in-process, and the weak point of current jar is separated and is stuck the instrument and mainly lie in: 1. the inability to produce continuous jarring; 2. the jarring tonnage is unstable; 3. when different well conditions meet the stuck drill, the shock mode can not achieve the purpose of releasing the stuck drill by vibration; 4. the effect of the different displacements on the downward blow is greater.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a reliable performance, easy operation is convenient, can produce the continuous downward jarring unfreezing device of jolting in the pit of continuous jarring to overcome not enough among the prior art.
The technical scheme of the utility model: a continuous downward jarring unfreezing device in a well comprises an outer cylinder part and a mandrel part, wherein the outer cylinder part comprises an upper joint, an upper sleeve, an upper connector, a middle sleeve, a lower connector and a spline housing which are sequentially connected together in a threaded manner from top to bottom; the central spindle part comprises a shunting cap which is connected with an inner hole of the upper connector in a threaded manner and a valve rod which penetrates through the upper sleeve and the upper connector, a blind hole is arranged at the center of the shunting cap, a shunting hole is arranged on the side wall of the blind hole, the outer diameter of the valve rod gradually decreases from top to bottom to form a step spindle structure, an upper centering sleeve is fixedly arranged at the upper end of a main spindle of the valve rod, a middle centering sleeve is sleeved at the middle part of the main spindle of the valve rod and is limited by the end part of the upper connector, a spring is arranged between the upper centering sleeve and the middle centering sleeve, a valve seat is connected in the inner hole of the middle sleeve in a sliding manner, a slip is connected at the upper end of the valve seat in a threaded manner, a limiting boss is arranged in the inner hole of the slip, a piston rod is connected at the lower end of the valve seat in a threaded manner, and penetrates through the middle sleeve and the lower connector and is in sliding fit with the inner hole of the lower connector, the upper part of the piston rod is in threaded connection with a limiting ring, and an overflowing hole is formed in the side wall of the middle sleeve and located between the lower end of the limiting ring and the upper end of the lower connecting body.
Further, the springs are arranged in pairs with a washer disposed between the two springs.
Furthermore, the upper end of the slip is matched with the lower end of the upper connecting body through a conical surface.
Furthermore, the outer wall of the valve seat is sleeved with a sand scraping ring and two Glare rings.
Further, the joint of the valve seat and the piston rod is in threaded connection with a locking screw.
Furthermore, a set of semicircular through grooves are formed in the inner wall of the spline sleeve, semicircular grooves corresponding to the semicircular through grooves are formed in the outer wall of the piston rod, a set of steel balls are arranged between the semicircular through grooves and the semicircular grooves, an oil plugging hole for injecting oil is formed in the side wall of the spline sleeve, and the oil plugging hole is in threaded connection with an oil plug.
Due to the adoption of the technical scheme, the utility model has the advantages of:
1. the utility model can effectively improve the releasing success rate and provide a reliable releasing tool for the oil field;
2. the utility model overcomes the problem that effective jarring can be generated only by frequency matching under different discharge capacities, and continuous jarring can be generated under any discharge capacity;
3. the utility model discloses a jar in succession and shake the unfreezing instrument downwards belongs to and salvages the unfreezing instrument, and its working property is reliable, easy operation, convenience, applicable in multiple operation in the pit such as well workover, salvage, can be in internal each big oil field wide use.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a cross-sectional view of the slips;
fig. 3 is a cross-sectional view C-C of fig. 2.
Description of reference numerals: 1-upper joint, 2-flow dividing cap, 3-valve rod, 4-upper centering sleeve, 5-spring, 6-gasket, 7-upper sleeve, 8-middle centering sleeve, 9-upper connector, 10-middle sleeve, 11-slip, 12-valve seat, 13-limiting ring, 14-lower connector, 15-spline sleeve, 16-steel ball, 17-piston rod, 18-O-shaped ring, 19-sand scraping ring, 20-Glare ring, 21-anti-loose screw, 22-oil plug and 23-limiting boss.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is further described in detail with reference to the accompanying drawings and examples.
The embodiment of the utility model provides a: the structure schematic diagram of the underground continuous downward jarring jam releasing device of the utility model is shown in figures 1-3, and comprises an outer cylinder part and a mandrel part, wherein the outer cylinder part comprises an upper joint 1, an upper sleeve 7, an upper connector 9, a middle sleeve 10, a lower connector 14 and a spline housing 15 which are sequentially connected together by screw threads from top to bottom; the central spindle part comprises a shunting cap 2 which is connected with an inner hole of an upper joint 1 in a threaded manner and a valve rod 3 which penetrates through an upper sleeve 7 and an upper connecting body 9, a blind hole is arranged at the center of the shunting cap 2, shunting holes are arranged on the side wall of the blind hole, the outer diameter of the valve rod 3 gradually decreases from top to bottom to form a stepped spindle structure, an upper centering sleeve 4 is fixedly arranged at the upper end of a large shaft of the valve rod 3, a middle centering sleeve 8 is sleeved at the middle part of the large shaft of the valve rod 3, the middle centering sleeve 8 is limited by the end part of the upper connecting body 9, a spring 5 is arranged between the upper centering sleeve 4 and the middle centering sleeve 8, a valve seat 12 is connected in a sliding manner in the inner hole of an intermediate sleeve 10, a slip 11 is connected with the upper end thread of the valve seat 12, a limiting boss 23 is arranged in the inner hole of the slip 11, a piston rod 17 is connected with the lower end thread of the valve seat 12, a limit ring 13 is connected to the upper portion of the piston rod 17 through a thread, an overflow hole is formed in the sidewall of the intermediate sleeve 10 between the lower end of the limit ring 13 and the upper end of the lower connecting body 14, and a distance between the lower end of the limit ring 13 and the upper end of the lower connecting body 14 is denoted by L in fig. 1. The springs 5 are arranged in pairs, with a washer 6 being arranged between the two springs 5. The upper end of the slip 11 is matched with the lower end of the upper connecting body 9 through a conical surface. The outer wall of the valve seat 12 is sleeved with a sand scraping ring 19 and two GREEN rings 20. The connecting part of the valve seat 12 and the piston rod 17 is in threaded connection with a locking screw 21, so that the valve seat 12 and the piston rod 17 are prevented from loosening. The inner wall of the spline sleeve 15 is provided with a group of semicircular through grooves, the outer wall of the piston rod 17 is provided with semicircular grooves corresponding to the semicircular through grooves, a group of steel balls 16 are arranged between the semicircular through grooves and the semicircular grooves, the side wall of the spline sleeve 15 is provided with an oil plugging hole for injecting hydraulic oil or lubricating steel balls 16, and the oil plugging hole is in threaded connection with an oil plug 22. The threaded connections of the various components are fitted with O-rings 18 to improve the seal of the overall tool.
The utility model discloses a theory of operation:
the utility model discloses leading-in from top connection 1 with mud circulation pressure, by dividing the discharge orifice blowout on the split stream cap 2 again, and then it is down to promote valve rod 3, and compression spring 5, make the lower extreme of valve rod 3 and the up end A of disk seat 12 contact, valve rod 3 moves down with the piston rod 17 of connecting at disk seat 12 lower extreme this moment, when instrument internal pressure constantly increases, piston rod 17 is motionless with the lower part drilling tool relative fixation who connects at piston rod 17 lower extreme, when instrument internal pressure continues to increase, connect upper portion tubular column and the spline housing 15 relative upward movement together at top connection 1, the circular bead on lower terminal surface B of spline housing 15 lower extreme and piston rod 17 breaks away from mutually, the internal cone face of slips 11 breaks away from each other with the outer cone face of last connector 9 this moment, spacing boss 23 on slips 11 falls back on the outer circle of 3 steps. Because of the limit ring 13, the upper pipe column can not continuously rise after moving for a distance L, at the moment, the spring 5 rapidly rebounds to rapidly separate the valve rod 3 from the valve seat 12, the slip 11 continuously falls back, the internal circulation pressure of the tool is established, at the moment, the upper pipe column rapidly moves downwards under the action of self-hanging weight and elastic deformation, due to the circulating pressure in the tool, the valve rod 3 is pushed again and the spring 5 is compressed, so that the lower end of the valve rod 3 is contacted with the upper end surface A of the valve seat 12 again, because the inner hole of the slip 11 is provided with the limiting boss 23, the valve rod 3 acts on the limiting boss 23 of the inner hole of the slip 11 at the moment, the valve rod 3 is prevented from contacting with the upper end surface A of the valve seat 12, the internal circulation pressure of the tool still exists at the moment, so that the lower end surface B of the lower end of the spline housing 15 comes into contact with the shoulder on the piston rod 17, at which time a downward blow is generated. After the downward shock happens, the inner conical surface of the slip 11 is attached to the outer conical surface of the upper connecting body 9, the slip 11 is restored to the initial state under the action of the upper connecting body 9, the lower end of the valve rod 3 is contacted with the upper end surface A of the valve seat 12 again under the action of the mud circulation pressure, and the whole tool moves repeatedly again, so that the purpose of continuous shock is achieved.
The mandrel part of the utility model adopts a slip structure, which can achieve the effect of continuous shock; when different well conditions meet the stuck drill, the hanging weight of the drilling tool assembly above the stuck drill part is utilized to generate stable and reliable jarring tonnage under different discharge capacities, so that the purpose of jarring and releasing the stuck drill is achieved; after the jarring function takes place, utilize mud circulation pressure to provide mechanical energy to reach the best and continue downward jarring effect.
Claims (6)
1. A downhole continuous downward jarring stuck freeing device comprising an outer barrel portion and a mandrel portion, characterized in that: the outer barrel part comprises an upper joint (1), an upper sleeve (7), an upper connector (9), a middle sleeve (10), a lower connector (14) and a spline housing (15) which are sequentially connected together through threads from top to bottom; the central spindle part comprises a shunting cap (2) which is in threaded connection with an inner hole of an upper joint (1) and a valve rod (3) which penetrates through an upper sleeve (7) and an upper connector (9), a blind hole is formed in the center of the shunting cap (2), shunting holes are formed in the side wall of the blind hole, the valve rod (3) is of a stepped spindle structure with the outer diameter gradually reduced from top to bottom, an upper centering sleeve (4) is fixedly arranged at the upper end of a large spindle of the valve rod (3), a middle centering sleeve (8) is sleeved in the middle of the large spindle of the valve rod (3), the middle centering sleeve (8) is limited by the end part of the upper connector (9), a spring (5) is arranged between the upper centering sleeve (4) and the middle centering sleeve (8), a valve seat (12) is in sliding connection with the inner hole of the middle sleeve (10), a slip (11) is in threaded connection with the upper end of the valve seat (12), and a limiting boss (23) is arranged in the inner hole of the slip (11), the lower end of the valve seat (12) is in threaded connection with a piston rod (17), the piston rod (17) penetrates through the middle sleeve (10) and the lower connecting body (14) and is in sliding fit with an inner hole of the lower connecting body (14), the upper portion of the piston rod (17) is in threaded connection with a limiting ring (13), and an overflowing hole is formed in the side wall of the middle sleeve (10) and between the lower end of the limiting ring (13) and the upper end of the lower connecting body (14).
2. The downhole continuous downward jarring stuck freeing device of claim 1, wherein: the springs (5) are arranged in pairs, and a gasket (6) is arranged between the two springs (5).
3. The downhole continuous downward jarring stuck freeing device of claim 1, wherein: the upper end of the slip (11) is matched with the lower end of the upper connecting body (9) through a conical surface.
4. The downhole continuous downward jarring stuck freeing device of claim 1, wherein: the outer wall of the valve seat (12) is sleeved with a sand scraping ring (19) and two Gray rings (20).
5. The downhole continuous downward jarring stuck freeing device of claim 1, wherein: the joint of the valve seat (12) and the piston rod (17) is in threaded connection with a locking screw (21).
6. The downhole continuous downward jarring stuck freeing device of claim 1, wherein: a set of semicircular through grooves are formed in the inner wall of the spline sleeve (15), semicircular grooves corresponding to the semicircular through grooves are formed in the outer wall of the piston rod (17), a set of steel balls (16) are arranged between the semicircular through grooves and the semicircular grooves, an oil plugging hole for injecting oil is formed in the side wall of the spline sleeve (15), and an oil plug (22) is in threaded connection with the oil plugging hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023265319.7U CN214170487U (en) | 2020-12-29 | 2020-12-29 | Underground continuous downward jarring stuck releasing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023265319.7U CN214170487U (en) | 2020-12-29 | 2020-12-29 | Underground continuous downward jarring stuck releasing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214170487U true CN214170487U (en) | 2021-09-10 |
Family
ID=77611004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023265319.7U Withdrawn - After Issue CN214170487U (en) | 2020-12-29 | 2020-12-29 | Underground continuous downward jarring stuck releasing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214170487U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112593884A (en) * | 2020-12-29 | 2021-04-02 | 贵州高峰石油机械股份有限公司 | Underground continuous downward-jarring stuck freeing device and method |
-
2020
- 2020-12-29 CN CN202023265319.7U patent/CN214170487U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112593884A (en) * | 2020-12-29 | 2021-04-02 | 贵州高峰石油机械股份有限公司 | Underground continuous downward-jarring stuck freeing device and method |
| CN112593884B (en) * | 2020-12-29 | 2024-04-30 | 贵州高峰石油机械股份有限公司 | Underground continuous downward jarring unclamping device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103397863B (en) | Double acting compression packer and using method thereof | |
| CN214170487U (en) | Underground continuous downward jarring stuck releasing device | |
| CN110847837A (en) | Bidirectional hydraulic resistance type drilling jar | |
| CN212614631U (en) | Soluble bridge plug for fracturing | |
| CN106285483A (en) | A kind of reducing reamer and reaming hole method thereof | |
| CN112593884A (en) | Underground continuous downward-jarring stuck freeing device and method | |
| CN202810736U (en) | Thermal recovery horizontal well expansion pipe hanger | |
| CN105781464A (en) | Single-cylinder and double-acting hydraulic while-drilling jar | |
| CN201620854U (en) | Double-element split-type plunger gas-lift tool | |
| CN201554633U (en) | Falling object protective oil pump capable of performing annulus logging | |
| CN109184610B (en) | Pressure balancing device of ultra-ten thousand-meter deep well jar | |
| CN102839941A (en) | Extensible slurry filling device for running casing | |
| CN203420665U (en) | Double-acting compression type packer | |
| CN200949423Y (en) | Hydraulic reduced drilling tool stabilizer | |
| CN105401903A (en) | Three-jaw fisher for coiled tubing | |
| CN202325384U (en) | Horizontal well falling object protecting tool | |
| CN104533765A (en) | Double-fixation scale-blockage-preventing long-plunger sand-preventing oil well pump | |
| CN108397150A (en) | A kind of connecting pipes impactor | |
| CN208456543U (en) | Hydraulic retractable fishing spear | |
| CN210033384U (en) | Underground anti-blocking oil extraction device | |
| CN208702372U (en) | Multifunctional protection type blanking plug | |
| CN208870563U (en) | Oil drilling waterpower low frequency impact device | |
| CN201326535Y (en) | Double-plunger suspended anti-airlock oil pump | |
| CN216665548U (en) | Anti-shock hydraulic release fishing spear | |
| CN101235703B (en) | Air percussion hammer for well drilling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20210910 Effective date of abandoning: 20240430 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20210910 Effective date of abandoning: 20240430 |