CN106368642A - Deep well sleeve fishing device provided with automatic telescoping mechanism - Google Patents
Deep well sleeve fishing device provided with automatic telescoping mechanism Download PDFInfo
- Publication number
- CN106368642A CN106368642A CN201610792570.8A CN201610792570A CN106368642A CN 106368642 A CN106368642 A CN 106368642A CN 201610792570 A CN201610792570 A CN 201610792570A CN 106368642 A CN106368642 A CN 106368642A
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- sleeve
- spring
- auto
- telescopic mechanism
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/20—Grappling tools, e.g. tongs or grabs gripping internally, e.g. fishing spears
Abstract
The invention discloses a deep well sleeve fishing device provided with an automatic telescoping mechanism. The deep well sleeve fishing device is composed of a thick-wall drill stem, the automatic telescoping mechanism, a crank connecting rod mechanism and a fishing paw. By adoption of the deep well sleeve fishing device, a deep well sleeve can be fished effectively; when fishing cannot be completed at a time, drilling fluid or clear water can be used for applying pressure to the automatic telescoping mechanism, the fishing paw is made to contract, secondary damage, caused by forced pulling, to the sleeve in the well is avoided, the sleeve fishing device is protected at the same time, and damage is avoided; and the fishing effect is more prominent, the service life and the reliability are well guaranteed, and the overall cost performance ratio is greatly increased.
Description
Technical field
The present invention relates to a kind of tubing socket, salvage particularly to a kind of Deep Well Casings with auto-telescopic mechanism
Device.
Background technology
At present, existing tubing socket cannot carry out the salvaging of Deep Well Casings, such as Publication No. effectively
The fishing device of well casing of cn202000942u, although structure is simple, using practical in shallow well, but exists serious
Problem, that is, when disposably salvaging sleeve pipe, this fisher cannot effectively depart from salvaged sleeve pipe, and is risen using strength
Pull out the secondary damage easily causing sleeve pipe or the damage of fisher, therefore practical value is low, it is poor that effect salvaged by deep-well；This granddad
The number of opening is the patent of cn204002669u, can only salvage the drilling rod of screw thread rule after shaft bottom, the brill in actual shaft bottom of dropping
Situations such as bar may assume fracture, screw thread weares and teares, now this fisher can not effectively salvage sleeve pipe.
Content of the invention
The invention aims to solving in existing drilling engineering, Deep Well Casings salvaging is difficult, recovery utilization rate is low
Problem, and a kind of material-saving providing, energy saving, sustainable use, one kind of salvaging efficiency high are with automatic telescopic machine
The Deep Well Casings fisher of structure.
The present invention is made up of heavy wall drill pipe, auto-telescopic mechanism, toggle and finger catcher, wherein automatic telescopic
Mechanism includes limit base, auto-telescopic mechanism upper bed-plate, upper cylinder body inner sleeve, upper cylinder body outer sleeve, lower cylinder body sleeve, automatically stretches
Contracting mechanism lower bottom base, connecting post, spring spool, often loose spring, spring upper bed-plate and spring lower bottom base composition；
The inwall of heavy wall drill pipe is provided with limit base；
Auto-telescopic mechanism upper bed-plate is arranged in heavy wall drill pipe and is located at the lower section of limit base；
Heavy wall drill pipe is in auto-telescopic mechanism as upper cylinder body outer sleeve；
The inwall of the upper cylinder body outer sleeve below limit base is provided with several internal chute units, each internal chute unit
Including a long chute and a short groove, long chute is identical with the width of short groove, the opening position of long chute and short groove
In same horizontal line, long chute is parallel inclined-plane with the top of short groove；
The side wall of upper cylinder body outer sleeve offers relief hole；
Upper cylinder body inner sleeve is fixedly installed on auto-telescopic mechanism upper bed-plate, upper cylinder body outer sleeve and upper cylinder body inner sleeve
Coaxially, the lower surface of upper cylinder body inner sleeve is less than the long chute of upper cylinder body outer sleeve and the opening of short groove；
Lower cylinder body sleeve is arranged between the inside of upper cylinder body outer sleeve and the outside of upper cylinder body inner sleeve, and lower cylinder body set
Cylinder is fixedly installed on auto-telescopic mechanism lower bottom base；
The outer wall of lower cylinder body sleeve is provided with the outer traveller of several lower cylinder bodies, and the outer traveller of lower cylinder body is interior with upper cylinder body outer sleeve
Chute number of unit is identical, and shape is corresponding to long chute；
The lower section of auto-telescopic mechanism lower bottom base is fixedly installed connecting post, and the lower section of connecting post is fixedly installed on spring
Base, the lower section of spring upper bed-plate is fixedly installed spring righting cylinder, is provided with often loose spring, spring righting in spring righting cylinder
The lower section of cylinder is fixedly installed spring lower bottom base；
Toggle includes pin and three crank connecting links, and wherein pin is fixedly installed under spring lower bottom base
Side, the bottom of pin offers pin-and-hole；
Three through holes are uniformly begun with the outer wall positioned at the heavy wall drill pipe below pin, is provided with each through hole
One crank connecting link, one end of three crank connecting links is connected in the pin-and-hole of pin by pin；The other end of three crank connecting links
It is connected by pin with finger catcher respectively, finger catcher is provided with saw tooth；
Connect base is all fixedly installed on the heavy wall drill pipe outer wall below each through hole, finger catcher and crank connecting link and
Connect base is hinged.
Support base can be fixedly installed on the heavy wall drill pipe outer wall below connect base, connect base and support base are fixed
Connect, be provided with reinforcement between support base and heavy wall drill pipe outer wall simultaneously.
The work process of the present invention and principle are:
In its natural state, often loose spring elongation, in auto-telescopic mechanism, the outer traveller of the lower cylinder body of lower cylinder body sleeve is located at
In long chute, when instantly entering bottom hole realization salvaging function, using drilling fluid or clear water, promote automatic telescopic machine in heavy wall drill pipe
Structure upper bed-plate moves downward, thus driving lower cylinder body sleeve to move downward, causes the contraction of often loose spring, lower cylinder body sleeve simultaneously
The outer traveller of lower cylinder body move down from long chute, when the outer traveller of lower cylinder body moves to long chute port, upper cylinder body inner sleeve position
Set low in pressure relief opening, lead to the reduced pressure of drilling fluid, meanwhile because long runner wall has certain gradient, outside lower cylinder body
Traveller has identical gradient direction with it, and in the presence of often loose spring force, the outer traveller of lower cylinder body can enter in short groove,
Realize locking function, meanwhile compress often loose spring and drive crank connecting link to move down, drive finger catcher overhanging, realize salvaging work(
Energy.
When needing to withdraw finger catcher, using drilling fluid or clear water, compress the auto-telescopic mechanism in heavy wall drill pipe, meeting
Cause the contraction of often loose spring, the outer traveller of lower cylinder body moves down from short groove, when reaching short groove port, upper cylinder body inner sleeve position
Set low in pressure relief opening, lead to the reduced pressure of drilling fluid, simultaneously because short groove has certain gradient, the outer traveller of lower cylinder body with
It has identical gradient direction, and in the presence of often loose spring force, the outer traveller of lower cylinder body can enter in long chute, simultaneously by
In drilling liquid pressure already less than normal pine spring elastic force, so the outer traveller of lower cylinder body can rise to the summit of short groove, thus
Realize locking, meanwhile drive crank connecting link to rise, sliding sleeve return, bailer grab shrinks.
Beneficial effects of the present invention: the present invention salvages Deep Well Casings effectively, when once salvaging is difficult to complete, Ke Yili
With drilling fluid or clear water, apply pressure to auto-telescopic mechanism so that finger catcher shrinks, it is to avoid strength rises pulls out to well inner sleeve
The secondary damage of pipe, also protects this tubing socket simultaneously, it is to avoid damage；Not only salvage effect more prominent, and it makes
Also very guaranteed with life-span and its trustworthiness, overall price/performance ratio is greatly improved.
Brief description
Fig. 1 is the longitudinal sectional view of the embodiment of the present invention.
Fig. 2 is the a-a of embodiment of the present invention auto-telescopic mechanism to sectional view.
Fig. 3 is the sectional view of embodiment of the present invention upper cylinder body.
Fig. 4 is the positive sectional view of embodiment of the present invention lower cylinder body.
Fig. 5 is the side sectional view of embodiment of the present invention lower cylinder body.
Fig. 6 salvages the transverse sectional view of part for the embodiment of the present invention.
Specific embodiment
Refer to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, be embodiments of the invention, including being by heavy wall drill pipe
1st, auto-telescopic mechanism, toggle and finger catcher 15 form, and wherein auto-telescopic mechanism includes limit base 2, automatically stretches
Contracting mechanism upper bed-plate 3, upper cylinder body inner sleeve 4, upper cylinder body outer sleeve 5, lower cylinder body sleeve 6, auto-telescopic mechanism lower bottom base 7, company
Connect post 8, spring spool 9, often loose spring 10, spring upper bed-plate 11 and spring lower bottom base 12 form；
The inwall of heavy wall drill pipe 1 is provided with limit base 2；
Auto-telescopic mechanism upper bed-plate 3 is arranged in heavy wall drill pipe 1 and is located at the lower section of limit base 2；
Heavy wall drill pipe 1 is in auto-telescopic mechanism as upper cylinder body outer sleeve 5；
Several internal chute units 51, each internal chute are provided with the inwall of the upper cylinder body outer sleeve 5 below limit base 2
Unit 51 includes a long chute 511 and a short groove 512, and long chute 511 is identical with the width of short groove 512, long chute
511 and the opening of short groove 512 be located in same horizontal line, long chute 511 and the top of short groove 512 are parallel oblique
Face；
Relief hole 52 is offered on the side wall of upper cylinder body outer sleeve 5；
Upper cylinder body inner sleeve 4 is fixedly installed on auto-telescopic mechanism upper bed-plate 3, in upper cylinder body outer sleeve 5 and upper cylinder half body
Sleeve 4 is coaxial, and the lower surface of upper cylinder body inner sleeve 4 is less than the long chute 511 of upper cylinder body outer sleeve 5 and the opening of short groove 512
End；
Lower cylinder body sleeve 6 is arranged between the inside of upper cylinder body outer sleeve 5 and the outside of upper cylinder body inner sleeve 4, and lower cylinder
Body sleeve 6 is fixedly installed on auto-telescopic mechanism lower bottom base 7；
The outer wall of lower cylinder body sleeve 6 is provided with the outer traveller 61 of several lower cylinder bodies, the outer traveller 61 of lower cylinder body and upper cylinder body overcoat
Internal chute unit 51 number of cylinder 5 is identical, and shape is corresponding to long chute 511；
The lower section of auto-telescopic mechanism lower bottom base 7 is fixedly installed connecting post 8, and the lower section of connecting post 8 is fixedly installed bullet
Spring upper bed-plate 11, the lower section of spring upper bed-plate 11 is fixedly installed spring righting cylinder 9, is provided with often loose bullet in spring righting cylinder 9
Spring 10, the lower section of spring righting cylinder 9 is fixedly installed spring lower bottom base 12；
Toggle includes pin 13 and three crank connecting links 14, and wherein pin 13 is fixedly installed on spring lower bottom base
12 lower section, the bottom of pin offers pin-and-hole 131；
Three through holes 16 are uniformly begun with the outer wall positioned at the heavy wall drill pipe 1 below pin 12, in each through hole all
It is provided with a crank connecting link 14, one end of three crank connecting links 14 is connected in the pin-and-hole 131 of pin 13 by pin；Three songs
The other end of handle connecting rod 14 is connected by pin with finger catcher 15 respectively, and finger catcher 15 is provided with saw tooth 151；
Connect base 17, finger catcher 15 and song are all fixedly installed on heavy wall drill pipe 1 outer wall below each through hole 16
Handle connecting rod 14 and connect base 17 are hinged.
Support base 18 can be fixedly installed on heavy wall drill pipe 1 outer wall below connect base 17, by connect base 17 and
Support seat 18 is fixedly connected, and is provided with reinforcement 181 between support base 18 and heavy wall drill pipe 1 outer wall simultaneously.
The work process of the present embodiment and principle are:
In its natural state, often loose spring 10 extends, the outer traveller 61 of the lower cylinder body of lower cylinder body sleeve 6 in auto-telescopic mechanism
In long chute 511, when instantly entering bottom hole realization salvaging function, using drilling fluid or clear water, promote in heavy wall drill pipe 1 certainly
Dynamic telescoping mechanism upper bed-plate 3 moves downward, thus driving lower cylinder body sleeve 6 to move downward, causes the contraction of often loose spring 10, with
When lower cylinder body sleeve 6 the outer traveller 61 of lower cylinder body move down from long chute 511, when the outer traveller 61 of lower cylinder body moves to long chute
During 511 port, upper cylinder body inner sleeve 4 position is less than pressure relief opening 52, leads to the reduced pressure of drilling fluid, is meanwhile slided due to long
Groove 511 wall has certain gradient, and the outer traveller 61 of lower cylinder body has identical gradient direction with it, in often loose spring 10 elastic force
Under effect, the outer traveller 61 of lower cylinder body can enter in short groove 512, realizes locking function, meanwhile compress often loose spring 10 and carry
Dynamic crank connecting link 14 moves down, and drives finger catcher 15 overhanging, realizes salvaging function.
When needing to withdraw finger catcher 15, using drilling fluid or clear water, compress the automatic telescopic machine in heavy wall drill pipe 1
Structure, can cause the contraction of often loose spring 10, and the outer traveller 61 of lower cylinder body moves down from short groove 512, reaches short groove 512 port
When, upper cylinder body inner sleeve 4 position is less than pressure relief opening 52, leads to the reduced pressure of drilling fluid, simultaneously because short groove 512 has one
The fixed gradient, the outer traveller 61 of lower cylinder body has identical gradient direction with it, in the presence of often loose spring 10 elastic force, lower cylinder body
Outer traveller 61 can enter in long chute 511, simultaneously because drilling liquid pressure is already less than the elastic force of normal pine spring 10, the following cylinder of institute
External traveller 61 can rise to the summit of short groove 512, thus realizing locking, meanwhile drives crank connecting link 14 to rise, sliding
Set return, bailer grab 15 shrinks.
Claims (2)
1. a kind of Deep Well Casings fisher with auto-telescopic mechanism it is characterised in that: be by heavy wall drill pipe (1), automatically stretch
Contracting mechanism, toggle and finger catcher 15 form, and wherein auto-telescopic mechanism includes limit base (2), auto-telescopic mechanism
Upper bed-plate (3), upper cylinder body inner sleeve (4), upper cylinder body outer sleeve (5), lower cylinder body sleeve (6), auto-telescopic mechanism lower bottom base
(7), connecting post (8), spring spool (9), often loose spring (10), spring upper bed-plate (11) and spring lower bottom base (12) composition；
The inwall of heavy wall drill pipe (1) is provided with limit base (2)；
Auto-telescopic mechanism upper bed-plate (3) is arranged in heavy wall drill pipe (1) and is located at the lower section of limit base (2)；
Heavy wall drill pipe (1) is in auto-telescopic mechanism as upper cylinder body outer sleeve (5)；
The inwall of the upper cylinder body outer sleeve (5) below limit base (2) is provided with several internal chute units (51), sliding in each
Groove unit (51) includes a long chute (511) and a short groove (512), the width of long chute (511) and short groove (512)
Identical, the opening of long chute (511) and short groove (512) is located in same horizontal line, long chute (511) and short groove
(512) top is parallel inclined-plane；
Relief hole (52) is offered on the side wall of upper cylinder body outer sleeve (5)；
Upper cylinder body inner sleeve (4) is fixedly installed on auto-telescopic mechanism upper bed-plate (3), upper cylinder body outer sleeve (5) and upper cylinder body
Inner sleeve (4) is coaxial, and the lower surface of upper cylinder body inner sleeve (4) is less than long chute (511) and the short groove of upper cylinder body outer sleeve (5)
(512) opening；
Lower cylinder body sleeve (6) is arranged between the inside of upper cylinder body outer sleeve (5) and the outside of upper cylinder body inner sleeve (4), and under
Cylinder body sleeve (6) is fixedly installed on auto-telescopic mechanism lower bottom base (7)；
The outer wall of lower cylinder body sleeve (6) is provided with the outer traveller (61) of several lower cylinder bodies, and the outer traveller (61) of lower cylinder body is external with upper cylinder half
Internal chute unit (51) number of sleeve (5) is identical, and shape is corresponding to long chute (511)；
The lower section of auto-telescopic mechanism lower bottom base (7) is fixedly installed connecting post (8), and the lower section of connecting post (8) is fixedly installed
Spring upper bed-plate (11), the lower section of spring upper bed-plate (11) is fixedly installed spring righting cylinder (9), sets in spring righting cylinder (9)
It is equipped with often loose spring (10), the lower section of spring righting cylinder (9) is fixedly installed spring lower bottom base (12)；
Toggle includes pin (13) and three crank connecting links (14), and wherein pin (13) is fixedly installed on spring and goes to the bottom
The lower section of seat (12), the bottom of pin offers pin-and-hole (131)；
Three through holes (16) are uniformly begun with the outer wall positioned at the heavy wall drill pipe (1) below pin (13), in each through hole
It is provided with a crank connecting link (14), one end of three crank connecting links (14) is connected to the pin-and-hole of pin (13) by pin
(131) in；The other end of three crank connecting links (14) is connected by pin with finger catcher (15) respectively, and finger catcher (15) is upper to be arranged
There is saw tooth (151)；
Connect base (17), finger catcher (15) are all fixedly installed on heavy wall drill pipe (1) outer wall below each through hole (16)
With crank connecting link (14) and connect base (17) be hinged.
2. a kind of Deep Well Casings fisher with auto-telescopic mechanism according to claim 1 it is characterised in that: even
Connect and support base (18), connect base (17) and support base (18) are fixedly installed on heavy wall drill pipe (1) outer wall below base (17)
It is fixedly connected；It is provided with reinforcement (181) between support base (18) and heavy wall drill pipe (1) outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610792570.8A CN106368642B (en) | 2016-08-31 | 2016-08-31 | A kind of Deep Well Casings fisher with auto-telescopic mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610792570.8A CN106368642B (en) | 2016-08-31 | 2016-08-31 | A kind of Deep Well Casings fisher with auto-telescopic mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106368642A true CN106368642A (en) | 2017-02-01 |
| CN106368642B CN106368642B (en) | 2018-08-31 |
Family
ID=57899876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610792570.8A Active CN106368642B (en) | 2016-08-31 | 2016-08-31 | A kind of Deep Well Casings fisher with auto-telescopic mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106368642B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201908601U (en) * | 2010-12-17 | 2011-07-27 | 中国石油天然气股份有限公司 | Sealing left hand fishing spear |
| CN203403851U (en) * | 2013-08-02 | 2014-01-22 | 中国石油化工股份有限公司 | Downhole fiber-reinforced continuous composite tube fishing tool of oil field water injection well |
| CN204113177U (en) * | 2014-10-13 | 2015-01-21 | 秦立松 | Hydraulic returnable back-off fisher |
| CN204163672U (en) * | 2014-09-28 | 2015-02-18 | 刘伟 | Safety type oilfield down-hole salvager |
| CN204492730U (en) * | 2014-12-25 | 2015-07-22 | 河南省三力机械制造有限公司 | A kind of rotary drilling rig and drilling bucket fishing device thereof |
| US20150275603A1 (en) * | 2009-02-25 | 2015-10-01 | 2Ic Australia Pty Ltd. | Head Assembly |
-
2016
- 2016-08-31 CN CN201610792570.8A patent/CN106368642B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150275603A1 (en) * | 2009-02-25 | 2015-10-01 | 2Ic Australia Pty Ltd. | Head Assembly |
| CN201908601U (en) * | 2010-12-17 | 2011-07-27 | 中国石油天然气股份有限公司 | Sealing left hand fishing spear |
| CN203403851U (en) * | 2013-08-02 | 2014-01-22 | 中国石油化工股份有限公司 | Downhole fiber-reinforced continuous composite tube fishing tool of oil field water injection well |
| CN204163672U (en) * | 2014-09-28 | 2015-02-18 | 刘伟 | Safety type oilfield down-hole salvager |
| CN204113177U (en) * | 2014-10-13 | 2015-01-21 | 秦立松 | Hydraulic returnable back-off fisher |
| CN204492730U (en) * | 2014-12-25 | 2015-07-22 | 河南省三力机械制造有限公司 | A kind of rotary drilling rig and drilling bucket fishing device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106368642B (en) | 2018-08-31 |
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