CN201738858U - Sucker rod socket - Google Patents
Sucker rod socket Download PDFInfo
- Publication number
- CN201738858U CN201738858U CN2010202705273U CN201020270527U CN201738858U CN 201738858 U CN201738858 U CN 201738858U CN 2010202705273 U CN2010202705273 U CN 2010202705273U CN 201020270527 U CN201020270527 U CN 201020270527U CN 201738858 U CN201738858 U CN 201738858U
- Authority
- CN
- China
- Prior art keywords
- sucker rod
- slip segment
- guide shoe
- slip
- top connection
- 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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- Fishing Rods (AREA)
Abstract
A sucker rod socket is used for fishing a broken-off sucker rod in an oil field well, and adopts the structure that external threads are formed at the upper end and the lower end of an upper joint, the lower end of the upper joint is in threaded connection with an outer barrel, and the lower end of the outer barrel is in threaded connection with a guide shoe; a compression spring, a support tube and a slip block are fixed in the outer barrel and at the lower part of the upper joint and the upper part of the guide shoe from the top down; and both the outer wall and the inner wall of the cone-shaped slip block are conical, slip inserts in transverse arrangement are formed on the inner wall of the slip block, the full diameter end of the slip block faces downwards, and the slip block adopts a cone consisting of two semi-cones. The utility model has the benefit that a sucker rod can be rapidly and accurately fished to the ground no matter in which direction the top of the sucker rod inclines.
Description
Technical field
The utility model relates to oil recovery technique field, oil field, and particularly oil well is salvaged the down-hole special tool of construction, is a kind of the salvage disconnected polished rod that takes off, fishing socket of sucker rod in the oil well.
Background technology
At present, the most sucker rod pumpings that adopt in oil field.No matter rod-pumped well, screw bolt well, along with the growth of production time, and oil well takes every well stimulation, all caused the well rod load to increase; In addition, under long-time stress alternation effect, tired corrupted takes place in sucker rod, and rod parting becomes inevitable.Existing fishing socket is subjected to the influence of chamfering, is salvaging disconnected take off some polished rod, sucker rod preferably, easily.When the disconnected last summit of taking off of sucker rod during near the borehole wall, salvage very difficultly, not only salvaging does not come up, and has also delayed the production time.
The utility model content
The purpose of this utility model is: a kind of sucker rod socket is provided, and the sucker rod that can will break drops in the oil well salvages, and the top that falls in any direction can both be rapidly, salvage exactly no matter sucker rod breaks.
The technical solution adopted in the utility model is: sucker rod socket, mainly form by top connection, urceolus, spring, stay pipe, slip segment and guide shoe, top connection has centre bore for the cylinder bodily form, well liquid circulation port is arranged on the top connection wall, there is external screw thread at two ends up and down in top connection, upper external screw thread can connect fishing string, it is characterized in that: screw thread is connected with urceolus in the top connection lower end, and screw thread is connected with guide shoe in the lower end of urceolus; In urceolus and in top connection bottom and guide shoe top, be fixed with compression spring, stay pipe and slip segment from top to bottom; Slip segment is a cone shape, and the slip segment outer wall is conical, and the slip segment inwall be a taper shape, and transversely arranged slip insert is arranged on the inwall of slip segment, and the larger diameter end of slip segment is downward, and a cone being made up of two semicircle cones of slip segment.Sketch the processing method of slip segment, help to understand the structure of slip segment.Be made into the slip segment of a cone shape earlier, process slip insert on the inwall, adopt cutting method that the slip segment symmetry of a cone shape is cut into two semicircle cones then; Improve case hardness through Overheating Treatment at last.
For the sucker rod top can be entered in the guide shoe smoothly, inclined plane shape vertex (vertices), the gradient of vertex (vertices) are arranged at described guide shoe bottom is 45 degree.When the rotation fishing string, top connection drives guide shoe and rotates simultaneously, and the vertex (vertices) of guide shoe can be transferred fishing string in the sucker rod top substitution guide shoe that tilts on the tube inner wall, and the sucker rod top enters in the slip segment; Slip insert in the slip segment is held the sucker rod top tightly; On carry fishing string and can salvage ground to sucker rod.
The beneficial effects of the utility model: the utility model sucker rod socket, can salvage ground by sucker rod, no matter the sucker rod top tilt to any direction can both be rapidly, salvage exactly.
Description of drawings
Fig. 1 is the utility model sucker rod socket structural profile schematic diagram.
Fig. 2 be the utility model in the salvaging process, guide shoe and the disconnected position profile schematic diagram that takes off sucker rod.
Among the figure, 1. top connection, 2. urceolus, 3. spring, 4. stay pipe, 5. slip segment, 6. guide shoe, 7. vertex (vertices), 8. sucker rod top, 9. oil pipe.
The specific embodiment
Embodiment 1: with a sucker rod socket is example, and the utility model is described in further detail.
Consult Fig. 1.The utility model sucker rod socket, mainly form by top connection 1, urceolus 2, spring 3, stay pipe 4, slip segment 5 and guide shoe 6, top connection 1 has centre bore for the cylinder bodily form, and well liquid circulation port is arranged on top connection 1 wall, at the two ends up and down of top connection 1 external screw thread is arranged.Be connected with urceolus 2 at top connection 1 lower end screw thread, the external diameter of urceolus 2 is 68 millimeters, and length is 200 millimeters.Screw thread is connected with guide shoe 6 in the lower end of urceolus 2,47 millimeters of the external diameters of guide shoe 6, and inclined plane shape vertex (vertices) 7 is arranged at guide shoe 6 bottoms, and the gradient of vertex (vertices) 7 is 45 degree.In urceolus 2 and in top connection 1 bottom and guide shoe 6 tops, be fixed with compression spring 3, stay pipe 4 and slip segment 5 from top to bottom; Slip segment 5 is a cone shape, and slip segment 5 outer walls are conical, and the outer wall tapering is 25 degree.Slip segment 5 inwalls are conical, and the inwall tapering is 25 degree.Transversely arranged slip insert is arranged on the inwall of slip segment 5, and the larger diameter end of slip segment 5 is downward, and the major diameter face of slip segment 5 is on guide shoe 6 upper surfaces.The cone that slip segment 5 is made up of two semicircle cones.
Claims (2)
1. sucker rod socket, mainly form by top connection (1), urceolus (2), spring (3), stay pipe (4), slip segment (5) and guide shoe (6), top connection (1) has centre bore for the cylinder bodily form, on top connection (1) wall, well liquid circulation port is arranged, there is external screw thread at two ends up and down in top connection (1), it is characterized in that: screw thread is connected with urceolus (2) in top connection (1) lower end, is connected with guide shoe (6) at the lower end screw thread of urceolus (2); In urceolus (2) and in top connection (1) bottom and guide shoe (6) top, be fixed with compression spring (3), stay pipe (4) and slip segment (5) from top to bottom; Slip segment (5) is a cone shape, slip segment (5) outer wall is conical, and slip segment (5) inwall is conical, and transversely arranged slip insert is arranged on the inwall of slip segment (5), the larger diameter end of slip segment (5) is downward, and a cone being made up of two semicircle cones of slip segment (5).
2. sucker rod socket according to claim 1 is characterized in that: inclined plane shape vertex (vertices) (7), the gradient of vertex (vertices) (7) are arranged at described guide shoe (6) bottom is 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202705273U CN201738858U (en) | 2010-07-22 | 2010-07-22 | Sucker rod socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202705273U CN201738858U (en) | 2010-07-22 | 2010-07-22 | Sucker rod socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201738858U true CN201738858U (en) | 2011-02-09 |
Family
ID=43554136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202705273U Expired - Lifetime CN201738858U (en) | 2010-07-22 | 2010-07-22 | Sucker rod socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201738858U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359354A (en) * | 2011-10-26 | 2012-02-22 | 内蒙古龙旺地质勘探有限责任公司 | Downhole boot jack |
| CN102425403A (en) * | 2011-11-03 | 2012-04-25 | 中国石油天然气股份有限公司 | Method for determining setting depth of coaxial double hollow sucker rods |
-
2010
- 2010-07-22 CN CN2010202705273U patent/CN201738858U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359354A (en) * | 2011-10-26 | 2012-02-22 | 内蒙古龙旺地质勘探有限责任公司 | Downhole boot jack |
| CN102425403A (en) * | 2011-11-03 | 2012-04-25 | 中国石油天然气股份有限公司 | Method for determining setting depth of coaxial double hollow sucker rods |
| CN102425403B (en) * | 2011-11-03 | 2014-08-06 | 中国石油天然气股份有限公司 | Method for determining setting depth of coaxial double hollow sucker rods |
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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: 20110209 |