CN201778712U - Special fishing tool of slip-type underground throttleer - Google Patents
Special fishing tool of slip-type underground throttleer Download PDFInfo
- Publication number
- CN201778712U CN201778712U CN2010201835797U CN201020183579U CN201778712U CN 201778712 U CN201778712 U CN 201778712U CN 2010201835797 U CN2010201835797 U CN 2010201835797U CN 201020183579 U CN201020183579 U CN 201020183579U CN 201778712 U CN201778712 U CN 201778712U
- Authority
- CN
- China
- Prior art keywords
- main spindle
- joint
- guard shield
- countershaft
- circular hole
- 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
Links
Images
Abstract
A special fishing tool of a slip-type underground throttleer is applicable to the fishing of underground throttleers in an oil and natural gas well. The special fishing tool mainly comprises a core bar pressing part and a grabbing part; a claw is nested in a locking sleeve; a positioning block is sleeved at the upper part of a spacing step of an auxiliary shaft; an annular spacing step is arranged on the outer wall of the lower end of the auxiliary shaft; a rectangular spring is sleeved on the outer wall of the locking sleeve; a small spring is arranged in the annular space between the outer wall of the auxiliary shaft and the inner wall of a support pipe; a main spindle is inserted into the central hole of the auxiliary shaft; a guard shield is connected with the support pipe through screw threads; the lower end of a connector is inserted into the central hole at the upper end of the guard shield; the lower end of a lock nut is in threaded connection with the upper end of the guard shield; a large spring is sleeved into the annular space between the connector and the guard shield; a pin is connected with the connector and the main spindle; an axial rectangular window is installed on one side of the guard shield; and the outer end of a set screw is positioned in the rectangular window of the guard shield. The utility model has the benefits that the central rod of the slip-type throttleer can be compressed, and the rubber tube of the slip-type throttleer can be also retracted, so that the resistance between the throttleer and a pit shaft is reduced, and the fishing efficiency is improved.
Description
Technical field
The utility model relates to industrial gas oil underground work instrument, specifically, is the special-purpose fishing tool of a kind of Slips formula underground throttle device.
Background technology
In natural gas extraction, for step-down, limited production, energy-conservation, the general employing in gas well down-hole installation throttling arrangement method.The downhole choke device of the present extensive use in Su Lige gas field is the slip-type underground throttle device.This device relies on steel wire to be lowered to, the slips location, and the packing element sealing, valve is joined product realization throttling and is joined product.
In using at the scene,, regulate gas well output, need from pit shaft, to salvage restriction choke for satisfying the production demand.Consult Fig. 1.Slip-type restriction choke fishing tool commonly used at present, by joint 1, set screw 6, main spindle 7, little spring 9, straight pin 10, rectangle spring 11, locating piece 13, claw 14 and locking cover 15 are formed, joint 1 and main spindle 7 are by screwed connection, by set screw 6 lockings, little spring 9 is enclosed within on the main spindle 7, limited step and the end face clamping that locks cover 15 by joint 1, claw 14 is nested in the locking cover 15, limited step locking by locating piece 13 and main spindle 7, rectangle spring 11 is enclosed within on the locking cover 15, by claw 14 and joint 1 end face clamping, locking cover 15 is enclosed within the outside of main spindle 7, relies on straight pin 10 location.During salvaging, rely on the inertia force of tool string (rope socket+weighted lever+bumper jar+fishing tool), claw 14 grasps the fishing neck of restriction chokes, on carry piano wire, restriction choke is proposed.Find that in the salvaging process this instrument can't make the packing element of slip-type restriction choke bounce back fully, cause packing element and wall friction power too big, cause and salvage difficulty, even salvage failure.
The utility model content
The purpose of this utility model is: provide a kind of slip-type underground throttle device special-purpose fishing tool, packing element is bounced back fully and finish restriction choke and salvage, overcome existing fishing tool packing element is bounced back fully, cause the deficiency of salvaging difficulty.
The technical solution adopted in the utility model is: the special-purpose fishing tool of slip-type underground throttle device, and mainly by pressing core bar part and gripping portion to form.Gripping portion is made up of stay tube, little spring, straight pin, rectangle spring, countershaft, locating piece, claw and locking cover.Claw is nested in the locking cover.It is characterized in that: in the claw external wall of upper portion circular hole is arranged, the circular protrusions of locating piece places in the circular hole of claw, and the limited step top that is enclosed within countershaft of locating piece is suspended on claw on the countershaft; Countershaft is the cylindric centre bore that has, and countershaft lower end outer wall has the annular stop step.Countershaft inserts in the locking cover; The rectangle spring housing is on the outer wall of locking cover; In the annular space of little spring between countershaft outer wall and stay tube inwall; Countershaft upper end and stay tube screwed connection; Straight pin and stay tube screwed connection, the straight pin front end inserts in the locating hole of locking cover.Main spindle inserts in the countershaft centre bore, guard shield and stay tube screwed connection.
Press the core bar part to form by joint, lock nut, guard shield, big spring, pin, set screw and main spindle; Joint is the cylinder bodily form, and upper end of joint has connecting thread.Guard shield upper end centre bore is inserted in the joint lower end, and lock nut is enclosed within on the joint outer wall, and the lower end of lock nut is threaded with the guard shield upper end, and outer step of joint and joint have 5～30 mm distance between the step in lock nut, can cut off pin when joint upwards relatively moves; Big spring is inserted in the annular space of joint and guard shield; There is cylinder shape groove the upper surface of main spindle, insert in the groove of main spindle upper surface the bottom of joint, there is circular hole radially the lower end of joint, in the upper end of main spindle radially circular hole is arranged, pin inserts main spindle upper end radially circular hole and main spindle upper end radially in the circular hole, pin jointing and main spindle; Guard shield one side has axial rectangle window; There is screw the upper end of main spindle, is fixed with set screw in the screw of main spindle, and the outer end of set screw is in the rectangle window of guard shield, and the outer end of set screw can slide up and down in the rectangle window of guard shield.
The radially circular hole of main spindle upper end is joined brill with the radially circular hole of joint lower end, and pin inserts main spindle upper end radially circular hole and joint lower end radially in the circular hole, and external diameter is identical on the length of pin and the main spindle, and the both ends of the surface camber of pin.
There are three bar shaped distinguish the claw lower end, and three distinguish become 120 ° of directions to distribute, and there is inwardly protruded pawl each distinguish lower end, differentiates to have radial elastic.
The special-purpose fishing tool principle of summary slip-type underground throttle device helps to understand the utility model.
The special-purpose fishing tool of the utility model slip-type underground throttle device is finished the salvaging process by steel wire operation.The tool string that connects during use is: rope socket+weighted lever+bumper jar+novel fishing tool.The special-purpose fishing tool work of the utility model slip-type underground throttle device was finished by three steps: grasp restriction choke; Shear pin; Restriction choke is slipped out of the hand.Consult Fig. 2.
(1) grasp restriction choke: during operation more than being positioned at slip-type restriction choke seat envelope position 2～5 meters transfer tool string fast, under the effect of inertia force, claw 14 is swallowed the fishing neck of restriction choke, on carry tool string, because the bar shaped distinguish internal diameter of claw 14, grasps the restriction choke success less than restriction choke fishing neck external diameter.At this moment, be connected by pin 5 between main spindle 7 and the joint 1, big spring 4 is in compressive state, and main spindle 7 directly contacts with joint 1.
(2) shear pin: after grasping the restriction choke success, the tool string jarring that makes progress.Consult Fig. 3 b.The pin 5 of jointing 1 and main spindle 7 is cut off, big spring 4 extends naturally, main spindle 7 moves down under the elastic force of big spring 4 with joint 1 disengagement, the center-pole of the lower end compression slip-type restriction choke of main spindle 7, make the packing element retraction of restriction choke, on carry steel wire, steel wire tension descends, pin is sheared successfully, slowly fishing socket and restriction choke is proposed pit shaft then.
(3) restriction choke is slipped out of the hand: after being hampered, quick jarring tool string makes progress.Consult Fig. 4 b.Stay tube 8 moves upward with respect to locking cover 15, straight pin 10 is cut off, little spring 9 elastic force discharge, because little spring 9 elastic force are greater than the elastic force of rectangle spring 11, compression locking cover 15 moves downward, the distinguish internal diameter of claw 14 is greater than restriction choke fishing neck external diameter, and claw 14 breaks away from the fishing neck of restriction choke, and restriction choke is slipped out of the hand.
The beneficial effects of the utility model: the special-purpose fishing tool of the utility model slip-type underground throttle device, cut off at pin, big spring extends naturally, after main spindle moves down, can compress slip-type restriction choke center-pole, make the packing element retraction of slip-type restriction choke, reduced the resistance between restriction choke and the pit shaft, improved salvaging efficient; In addition, also have advantages such as easy for installation, rational in infrastructure, low cost of manufacture.
Description of drawings
Fig. 1 is present slip-type restriction choke fishing tool structural profile schematic diagram.
Fig. 2 is the special-purpose fishing tool structural profile of a utility model slip-type underground throttle device schematic diagram.
Fig. 3 a is that the utility model presses core bar partly to grasp pre-structure figure.
Fig. 3 b is that the utility model presses core bar partly to grasp the back structure chart.
Fig. 4 a is the gripping portion pre-structure figure that slips out of the hand.
Fig. 4 b is a structure chart after gripping portion is slipped out of the hand.
Among the figure, 1. joint, 2. lock nut, 3. guard shield, 4. big spring, 5. pin, 6. set screw, 7. main spindle, 8. stay tube, 9. little spring, 10. straight pin, 11. rectangle springs, 12. countershafts, 13. locating pieces, 14. claws, 15. locking covers.
The specific embodiment
Embodiment 1: with the special-purpose fishing tool of a slip-type underground throttle device is example, and the utility model is described in further detail.
Consult Fig. 1.The special-purpose fishing tool of the utility model slip-type underground throttle device is mainly by pressing core bar part and gripping portion to form.Gripping portion is basic identical with the structure of existing underground throttle device fishing tool.Gripping portion is made up of stay tube 8, little spring 9, straight pin 10, rectangle spring 11, countershaft 12, locating piece 13, claw 14 and locking cover 15.Claw 14 is nested in the locking cover 15.In claw 14 external wall of upper portion three circular holes are arranged, three circular holes are in same plane.The circular protrusions of locating piece 13 places in the circular hole of claw 14, and the limited step top that is enclosed within countershaft 12 of locating piece 13 is suspended on claw 14 on the countershaft 12.Countershaft 12 is the cylindric centre bore that has, and countershaft 12 lower end outer walls have the annular stop step.Countershaft 12 inserts in the locking cover 15; Rectangle spring 11 is enclosed within on the outer wall of locking cover 15; In the annular space of little spring 9 between countershaft 12 outer walls and stay tube 8 inwalls; Countershaft 12 upper ends and stay tube 8 screwed connections; Straight pin 10 and stay tube 8 screwed connections, straight pin 10 front ends insert in the locating hole of locking cover 15.Main spindle 7 inserts in countershaft 12 centre bores, guard shield 3 and stay tube 8 screwed connections.There are three bar shaped distinguish described claw 14 lower ends, and three distinguish become 120 ° of directions to distribute, and there is inwardly protruded pawl each distinguish lower end, and three resolutions have radial elastic.
Press the core bar part to form by joint 1, lock nut 2, guard shield 3, big spring 4, pin 5, set screw 6 and main spindle 7; Joint 1 is the cylinder bodily form, and there is connecting thread joint 1 upper end.Guard shield 3 upper end centre bores are inserted in joint 1 lower end, lock nut 2 is enclosed within on joint 1 outer wall, the lower end of lock nut 2 is threaded with guard shield 3 upper ends, and joint 1 outer step and joint 1 have 15 mm distance between the step in lock nut 2, can cut off pin 5 when joint 1 upwards relatively moves 15 millimeters the time; Big spring 4 is inserted in the annular space of joint 1 and guard shield 3; There is cylinder shape groove the upper surface of main spindle 7, and insert in the groove of main spindle 7 upper surfaces the bottom of joint 1.The radially circular hole of main spindle 7 upper ends is joined brill with the radially circular hole of joint 1 lower end, and pin 5 inserts main spindles 7 upper ends radially circular hole and joint 1 lower end radially in the circular hole, pin 5 jointings 1 and main spindle 7; The length of pin 5 is identical with main spindle 7 upper end external diameters, and the both ends of the surface camber of pin 5.Guard shield 3 one sides have axial rectangle window; There is a screw upper end of main spindle 7, is fixed with a set screw 6 in the screw of main spindle 7, and the outer end of set screw 6 is in the rectangle window of guard shield 3, and the outer end of set screw 6 can slide up and down in the rectangle window of guard shield 3.
Claims (2)
1. the special-purpose fishing tool of a slip-type underground throttle device, mainly by pressing core bar part and gripping portion to form, gripping portion is made up of stay tube (8), little spring (9), straight pin (10), rectangle spring (11), countershaft (12), locating piece (13), claw (14) and locking cover (15), and claw (14) is nested in the locking cover (15); It is characterized in that: in claw (14) external wall of upper portion circular hole is arranged, the circular protrusions of locating piece (13) places in the circular hole of claw (14), and the limited step top that is enclosed within countershaft (12) of locating piece (13) is suspended on claw (14) on the countershaft (12); Countershaft (12) is the cylindric centre bore that has, and countershaft (12) lower end outer wall has the annular stop step; Countershaft (12) inserts in the locking cover (15); Rectangle spring (11) is enclosed within on the outer wall of locking cover (15); In the annular space of little spring (9) between countershaft (12) outer wall and stay tube (8) inwall; Countershaft (12) upper end and stay tube (8) screwed connection; Straight pin (10) and stay tube (8) screwed connection, straight pin (10) front end insert in the locating hole of locking cover (15); Main spindle (7) inserts in countershaft (12) centre bore, guard shield (3) and stay tube (8) screwed connection;
Press the core bar part to form by joint (1), lock nut (2), guard shield (3), big spring (4), pin (5), set screw (6) and main spindle (7); Joint (1) is the cylinder bodily form, there is connecting thread joint (1) upper end, guard shield (3) upper end centre bore is inserted in joint (1) lower end, lock nut (2) is enclosed within on joint (1) outer wall, the lower end of lock nut (2) is threaded with guard shield (3) upper end, and outer step of joint (1) and joint (1) have 5～30 mm distance between the step in lock nut (2); Big spring (4) is inserted in the annular space of joint (1) and guard shield (3); There is cylinder shape groove the upper surface of main spindle (7), insert in the groove of main spindle (7) upper surface the bottom of joint (1), there is circular hole radially the lower end of joint (1), there is radially circular hole upper end at main spindle (7), pin (5) inserts main spindle (7) upper end radially circular hole and main spindle (7) upper end radially in the circular hole, pin (5) jointing (1) and main spindle (7); Guard shield (3) one sides have axial rectangle window; There is screw the upper end of main spindle (7), is fixed with set screw (6) in the screw of main spindle (7), and the outer end of set screw (6) is in the rectangle window of guard shield (3).
2. the special-purpose fishing tool of slip-type underground throttle device according to claim 1, it is characterized in that: the radially circular hole of main spindle (7) upper end is joined brill with the radially circular hole of joint (1) lower end, a pin (5) inserts main spindle (7) upper end radially circular hole and joint (1) lower end radially in the circular hole, the length of pin (5) is identical with main spindle (7) upper end external diameter, and the both ends of the surface camber of pin (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201835797U CN201778712U (en) | 2010-04-30 | 2010-04-30 | Special fishing tool of slip-type underground throttleer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201835797U CN201778712U (en) | 2010-04-30 | 2010-04-30 | Special fishing tool of slip-type underground throttleer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201778712U true CN201778712U (en) | 2011-03-30 |
Family
ID=43791925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201835797U Expired - Lifetime CN201778712U (en) | 2010-04-30 | 2010-04-30 | Special fishing tool of slip-type underground throttleer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201778712U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527128A (en) * | 2012-07-04 | 2014-01-22 | 中国石油天然气股份有限公司 | Fishing tool for natural gas extraction downhole throttle device and operation method of fishing tool |
| CN106089141A (en) * | 2016-07-27 | 2016-11-09 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of method implementing back-off salvaging at net horizontal section |
| CN106593341A (en) * | 2016-12-23 | 2017-04-26 | 中国石油天然气股份有限公司 | Hydraulic type salvage tool for restrictors and operating method thereof |
| CN107044266A (en) * | 2017-05-22 | 2017-08-15 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of presetting system underground adjustable choke fishing tool |
| CN109826581A (en) * | 2019-03-27 | 2019-05-31 | 咸阳荣达石油技术服务有限公司 | A method of cooperated with special tool and salvages flow controller |
| CN110439492A (en) * | 2018-05-03 | 2019-11-12 | 中国石油天然气股份有限公司 | Underground throttle device recyclable device and method |
-
2010
- 2010-04-30 CN CN2010201835797U patent/CN201778712U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527128A (en) * | 2012-07-04 | 2014-01-22 | 中国石油天然气股份有限公司 | Fishing tool for natural gas extraction downhole throttle device and operation method of fishing tool |
| CN103527128B (en) * | 2012-07-04 | 2016-03-09 | 中国石油天然气股份有限公司 | Natural gas extraction underground restrictor fishing tool and method of operating thereof |
| CN106089141A (en) * | 2016-07-27 | 2016-11-09 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of method implementing back-off salvaging at net horizontal section |
| CN106593341A (en) * | 2016-12-23 | 2017-04-26 | 中国石油天然气股份有限公司 | Hydraulic type salvage tool for restrictors and operating method thereof |
| CN106593341B (en) * | 2016-12-23 | 2019-01-18 | 中国石油天然气股份有限公司 | A kind of hydraulic pressure throttler fishing tool and its operating method |
| CN107044266A (en) * | 2017-05-22 | 2017-08-15 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of presetting system underground adjustable choke fishing tool |
| CN110439492A (en) * | 2018-05-03 | 2019-11-12 | 中国石油天然气股份有限公司 | Underground throttle device recyclable device and method |
| CN110439492B (en) * | 2018-05-03 | 2021-11-02 | 中国石油天然气股份有限公司 | Underground choke recycling device and method |
| CN109826581A (en) * | 2019-03-27 | 2019-05-31 | 咸阳荣达石油技术服务有限公司 | A method of cooperated with special tool and salvages flow controller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201778712U (en) | Special fishing tool of slip-type underground throttleer | |
| CN201486515U (en) | Switch type releasing packer | |
| CN201883977U (en) | Continuous oil pipe type fishing tool for slip downhole choke | |
| CN201771454U (en) | Recyclable drilling rig | |
| CN107701124B (en) | Disposal mechanism for submarine drilling machine | |
| CN202745835U (en) | Anti-slipping single rubber sleeve underground throttling device | |
| CN103541697A (en) | Anti-slide single-rubber-barrel downhole throttling device | |
| CN202645470U (en) | Twisting device for sucker rods | |
| CN201068760Y (en) | Oilfield down-hole salvager | |
| CN201232535Y (en) | Eccentric wellhead double pulley blowout prevention blowout preventer | |
| CN202970581U (en) | Salvaging device of cables under oil well | |
| CN202417377U (en) | Multifunctional oil field underground salvage device | |
| CN201972658U (en) | Blanking plug in oil pipe | |
| CN202731807U (en) | Downhole fishing tool | |
| CN202745785U (en) | Anti-sliding gas lift fishing tool of slip-type downhole choke | |
| RU126751U1 (en) | EXTERNAL MECHANICAL CATCHER OF POLISHED STOCK | |
| CN202338253U (en) | Sealed rubber cylinder fishing tool for slip-type underground throttle | |
| CN201474624U (en) | Drill rod joint with double steps | |
| CN201486500U (en) | Multifunctional overshot | |
| CN201246126Y (en) | Well falling rubber part salvaging machine | |
| CN202338251U (en) | Jar knocker for assisting restriction choke for unlocking | |
| CN2725509Y (en) | Multifunction composite fishing drum | |
| CN203835343U (en) | Connecting rope cap for suction | |
| CN2700555Y (en) | Wet joint of measurement while drilling instrument | |
| CN203175451U (en) | Novel underground fishing tool for oil field |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110330 |
|
| CX01 | Expiry of patent term |