CN109469458A - A kind of circlip type fisher and its Refloatation method - Google Patents
A kind of circlip type fisher and its Refloatation method Download PDFInfo
- Publication number
- CN109469458A CN109469458A CN201811130058.2A CN201811130058A CN109469458A CN 109469458 A CN109469458 A CN 109469458A CN 201811130058 A CN201811130058 A CN 201811130058A CN 109469458 A CN109469458 A CN 109469458A
- Authority
- CN
- China
- Prior art keywords
- circlip
- spring seat
- clip spring
- connecting tube
- fisher
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000005553 drilling Methods 0.000 claims abstract description 28
- 230000002542 deteriorative effect Effects 0.000 claims abstract description 6
- 238000011065 in-situ storage Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B31/18—Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Marine Sciences & Fisheries (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention belongs to probings, drilling machinery technical field, and in particular to a kind of circlip type fisher and its Refloatation method, comprising: top connection, connecting tube, circlip and clip spring seat composition；Top connection upper end is connect with drilling rod is salvaged；Top connection lower end is threadedly coupled with upper end of connecting tube；Connecting tube lower end external screw thread is connect with clip spring seat upper end internal screw thread；Circlip is installed inside clip spring seat.A kind of circlip type fisher and its Refloatation method that the present invention designs, fast salvaging tool for in-situ processing drill string break-off accident, structure is simple, easy to use, significant effect, salvages reliably, once situation is complicated in hole, the present invention is also equipped with unfreezing function, it will can quickly salvage drill string to propose to prevent accident from deteriorating in hole, reduce loss.The present invention can not only salvage drilling rod, but also can salvage the utensils such as drilling tool, drill bit, inserting tube.
Description
Technical field
The invention belongs to probings, drilling machinery technical field, and in particular to a kind of circlip type fisher and its salvaging
Method.
Background technique
Drill in drilling process, drill string and drilling tool disconnected de-, drill bit often occur and the accidents such as falls, be often used die nipple,
The processing of the fishers such as female coupling tap is forced using screw thread is salvaged in accident head surface thread making, so that accident head be made to be connected to fisher
Together, the drilling rod, drilling tool or drill bit etc. to fracture has been salvaged.These fisher thread making length must be empirically determined, was salvaging
Tripping accident easily occurs in journey, and if primary unsuccessful, it is larger to probing utensil damage when repeatedly being salvaged, and easily lead
Situation is complicated and can not salvage in pore.Even if salvaging successfully, drilling accident head can not generally be reused.Therefore it needs to study
A kind of fisher is for solving above-mentioned the deficiencies in the prior art.
Summary of the invention
It is an object of the invention to propose a kind of circlip type fisher and its Refloatation method, for solving in-situ processing drilling rod
The fast salvaging problem of column break-off accident.
The technical scheme adopted by the invention is that:
A kind of circlip type fisher, comprising: top connection, connecting tube, circlip and clip spring seat composition；Top connection upper end and salvaging
Drilling rod connection；Top connection lower end is threadedly coupled with upper end of connecting tube；Connecting tube lower end external screw thread and clip spring seat upper end internal screw thread connect
It connects；Circlip is installed inside clip spring seat.
Clip spring seat lower end inner hole as described above is equipped with righting-oriented chamfering, enters for accident head；It is on the outside of the circlip
The conical surface；Conical degree of conical surface is consistent with the conical surface on the outside of circlip on the inside of clip spring seat, and two conical surfaces are in be slidably matched.
There is longitudinal opening on circlip circumference as described above, when moving up and down along the clip spring seat conical surface, the inner and outer diameter of circlip is produced
Changing；Connecting tube lower end plane plays position-limiting action to circlip.
Connecting tube lower end external screw thread as described above is that left hand thread is connect with clip spring seat internal screw thread, when the complicated feelings of appearance in hole
When condition, drill string, the left-handed connection screw thread opening of connecting tube lower end and clip spring seat junction can be rotated clockwise.
The tool joint thread matching connected to it of top connection top as described above screw thread.
Connecting tube internal diameter as described above is more than or equal to accident head outer diameter 3mm, connection length of tube for 1.0m~
2.0m。
Guiding chamfer angle in clip spring seat lower part as described above is 5 °~75 °.
Circlip as described above is core spring, and clip spring seat needs are adjusted according to circlip length；Connecting tube and clip spring seat
Central through hole diameter be greater than circlip free state when central through hole diameter.
According to a kind of Refloatation method of circlip type fisher as described above, include the following steps:
Step 1: carry out the assembling of circlip type fisher: after circlip is packed into clip spring seat, clip spring seat is connect with connecting tube,
Upper end of connecting tube is connect with top connection.
Step 2: fisher is connect in aperture with drilling rod is salvaged after being completed, then in tripping in drilling；Fisher decentralization
When to away from accident head 1m~2m, slow down running speed.
Step 3: it salvages the stage: after fisher and accident head contact, since there is guiding chamfering in clip spring seat lower end, having
Righting-oriented function, accident head pass through circlip inner hole and enter in fisher；After accident head enters certain distance in fisher, one
As be 0.5m~1.0m, fishing string can be lifted up, at this time fisher clip spring seat uplink, circlip is with respect to clip spring seat to moving down
Dynamic, internal diameter becomes smaller, and circlip is made to generate the chucking power of clamping accident head, so that accident head be proposed outside hole, reaches thing in processing hole
Therefore purpose.Connecting tube lower end external screw thread is connect with clip spring seat internal screw thread using left hand thread；When occurring complex situations in hole,
Drill string can be rotated clockwise, the left-handed connection screw thread opening of connecting tube lower end and clip spring seat junction will salvage rapidly drilling rod
Column proposes to prevent accident from deteriorating in hole, reduces and lose.
The beneficial effects of the present invention are:
A kind of circlip type fisher and its Refloatation method that the present invention designs, for in-situ processing drill string break-off accident
Fast salvaging tool, structure is simple, easy to use, significant effect, salvages reliably.Once situation is complicated in hole, the present invention also has
Standby unfreezing function will can quickly salvage drill string and propose to prevent accident from deteriorating in hole, reduce loss.The present invention not only can be with
Drilling rod is salvaged, and the utensils such as drilling tool, drill bit, inserting tube can be salvaged.
Detailed description of the invention
Fig. 1 is a kind of circlip type fisher schematic device designed by the present invention.
Wherein: 1- top connection；2- connecting tube；3- circlip；4- clip spring seat
Specific embodiment
Invention is further described in detail combined with specific embodiments below:
As shown in Figure 1, a kind of circlip type fisher, comprising: top connection 1, connecting tube 2, circlip 3 and clip spring seat 4 form；On
1 upper end of connector is connect with drilling rod is salvaged；1 lower end of top connection is connect with 2 threaded upper ends of connecting tube；2 lower end external screw thread of connecting tube with
The connection of 4 upper end internal screw thread of clip spring seat；Circlip 3 is installed inside clip spring seat 4.
2 lower end plane of connecting tube plays position-limiting action to circlip 3；When circlip 3 moves up, internal diameter becomes larger, and is convenient for accident head
It carries out in fisher；Salvaging drilling rod is above mentioned, clip spring seat 4 moves up, and internal diameter becomes smaller when circlip 3 moves down, and circlip 3 is made to generate clamping
The chucking power of accident head achievees the purpose that handle drilling accident so that accident drill rod, drilling tool or drill bit etc. be proposed outside hole.
The 4 lower end inner hole of clip spring seat is equipped with righting-oriented chamfering, enters for accident head；It is cone on the outside of the circlip 3
Face；4 inside conical degree of conical surface of clip spring seat is consistent with the 3 outside conical surface of circlip, and two conical surfaces are in be slidably matched.
There is longitudinal opening on 3 circumference of circlip, when moving up and down along 4 conical surface of clip spring seat, the inner and outer diameter of circlip 3 is generated
Variation；2 lower end plane of connecting tube plays position-limiting action to circlip 3.
The 2 lower end external screw thread of connecting tube and 4 internal screw thread of clip spring seat are that left hand thread is connect, when occurring complex situations in hole
When, drill string can be rotated clockwise, the left-handed connection screw thread opening of 2 lower end of connecting tube and 4 junction of clip spring seat will salvage rapidly
Drill string proposes to prevent accident from deteriorating in hole, reduces and lose.
1 top screw thread of the top connection tool joint thread matching connected to it, 1 top of top connection can be male thread
Or box thread.
2 internal diameter of connecting tube and length are generally according to needing the outer diameter for salvaging accident head and length to be adjusted in hole
It is whole；2 internal diameter of connecting tube is more than or equal to accident head outer diameter 3mm, and 2 length of connecting tube is 1.0m~2.0m.
4 lower part of the clip spring seat guiding chamfer angle is 5 °~75 °, can be adjusted according to the actual situation.
The circlip 3 is core spring.Circlip 3 or special circlip, for example special circlip；Clip spring seat 4 needs
It is adjusted according to 3 length of circlip；Center is logical when the central through hole diameter of connecting tube 2 and clip spring seat 4 is greater than 3 free state of circlip
Bore dia.
A kind of Refloatation method of circlip type fisher as described above, includes the following steps:
Step 1: the assembling of circlip type fisher is carried out: after circlip 3 is packed into clip spring seat 4, clip spring seat 4 and connecting tube 2
Connection, upper end of connecting tube are connect with top connection 1.
Step 2: fisher is connect in aperture with drilling rod is salvaged after being completed, then in tripping in drilling；Fisher decentralization
When to away from accident head 1m~2m, slow down running speed.
Step 3: it salvages the stage: after fisher and accident head contact, since there is guiding chamfering in 4 lower end of clip spring seat, having
Righting-oriented function, accident head pass through 3 inner hole of circlip and enter in fisher；After accident head enters certain distance in fisher,
Generally 0.5m~1.0m can be lifted up fishing string, at this time 4 uplink of fisher clip spring seat, and circlip 3 is with respect to clip spring seat 4
It moves down, internal diameter becomes smaller, and so that circlip 3 is generated the chucking power of clamping accident head, so that accident head be proposed to reach processing outside hole
The purpose of drilling accident.2 lower end external screw thread of connecting tube is connect with 4 internal screw thread of clip spring seat using left hand thread；When being answered in hole
When miscellaneous situation, drill string can be rotated clockwise, 2 lower end of connecting tube and the left-handed connection screw thread of 4 junction of clip spring seat are opened, rapidly
Drill string will be salvaged to propose to prevent accident from deteriorating in hole, reduce loss.
The present invention is explained in detail above in conjunction with drawings and examples, above-described embodiment be one of the invention preferably
Technical solution, but the present invention is not limited to above-described embodiments, within the knowledge of a person skilled in the art,
It can be with various changes can be made without departing from the purpose of the present invention.The content being not described in detail in the present invention can be with
Using the prior art.
Claims (9)
1. a kind of circlip type fisher characterized by comprising top connection (1), connecting tube (2), circlip (3) and clip spring seat (4)
Composition；Top connection (1) upper end is connect with drilling rod is salvaged；Top connection (1) lower end is connect with connecting tube (2) threaded upper ends；Connecting tube
(2) lower end external screw thread is connect with clip spring seat (4) upper end internal screw thread；Circlip (3) are installed inside clip spring seat (4).
2. a kind of circlip type fisher according to claim 1, it is characterised in that: clip spring seat (4) lower end inner hole is set
There is righting-oriented chamfering, enters for accident head；It is the conical surface on the outside of the circlip (3)；Conical degree of conical surface and card on the inside of clip spring seat (4)
The conical surface is consistent on the outside of spring (3), and two conical surfaces are in be slidably matched.
3. a kind of circlip type fisher according to claim 2, it is characterised in that: have longitudinal direction on circlip (3) circumference
Opening, when moving up and down along clip spring seat (4) conical surface, the inner and outer diameter of circlip (3) generates variation；Connecting tube (2) lower end plane pair
Circlip (3) plays position-limiting action.
4. a kind of circlip type fisher according to claim 1, it is characterised in that: connecting tube (2) lower end external screw thread
It is that left hand thread is connect with clip spring seat (4) internal screw thread, when occurring complex situations in hole, drill string can be rotated clockwise, connected
The left-handed connection screw thread for managing (2) lower end and clip spring seat (4) junction is opened.
5. a kind of circlip type fisher according to claim 1, it is characterised in that: top connection (1) the top screw thread with
Its tool joint thread connected matching.
6. a kind of circlip type fisher according to claim 1, it is characterised in that: connecting tube (2) internal diameter is big
In being equal to accident head outer diameter 3mm, connecting tube (2) length is 1.0m~2.0m.
7. a kind of circlip type fisher according to claim 1, it is characterised in that: clip spring seat (4) the lower part guiding is fallen
Angle angle is 5 °~75 °.
8. a kind of circlip type fisher according to claim 2, it is characterised in that: the circlip (3) is core spring, card
Spring abutment (4) needs are adjusted according to circlip (3) length；The central through hole diameter of connecting tube (2) and clip spring seat (4) is greater than circlip
(3) central through hole diameter when free state.
9. it is a kind of according to claim 1 to one of 8 a kind of Refloatation method of circlip type fisher, it is characterised in that packet
Include following steps:
Step 1: the assembling of circlip type fisher is carried out: after circlip (3) are packed into clip spring seat (4), clip spring seat (4) and connecting tube
(2) it connects, upper end of connecting tube is connect with top connection (1).
Step 2: fisher is connect in aperture with drilling rod is salvaged after being completed, then in tripping in drilling；Fisher transfer to away from
When accident head 1m~2m, slow down running speed.
Step 3: it salvages the stage: after fisher and accident head contact, since there is guiding chamfering in clip spring seat (4) lower end, having and lead
To righting function, accident head passes through circlip (3) inner hole and enters in fisher；After accident head enters certain distance in fisher,
Generally 0.5m~1.0m can be lifted up fishing string, at this time fisher clip spring seat (4) uplink, and circlip (3) is with respect to circlip
Seat (4) moves down, and internal diameter becomes smaller, and circlip (3) is made to generate the chucking power of clamping accident head, so that accident head is proposed outside hole,
Achieve the purpose that handle drilling accident.Connecting tube (2) lower end external screw thread is connect with clip spring seat (4) internal screw thread using left hand thread；
When occurring complex situations in hole, drill string can be rotated clockwise, connecting tube (2) lower end is left-handed with clip spring seat (4) junction
Connection screw thread is opened, and will be salvaged drill string rapidly and be proposed to prevent accident from deteriorating in hole, and reduce loss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811130058.2A CN109469458A (en) | 2018-09-27 | 2018-09-27 | A kind of circlip type fisher and its Refloatation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811130058.2A CN109469458A (en) | 2018-09-27 | 2018-09-27 | A kind of circlip type fisher and its Refloatation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109469458A true CN109469458A (en) | 2019-03-15 |
Family
ID=65664187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811130058.2A Pending CN109469458A (en) | 2018-09-27 | 2018-09-27 | A kind of circlip type fisher and its Refloatation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109469458A (en) |
Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB264077A (en) * | 1926-07-28 | 1927-01-13 | James Cuthill | Improvements in joints for connecting drill or fishing tools to drill rods and the like |
| CN2122930U (en) * | 1992-06-01 | 1992-11-25 | 刘贵山 | Overshot |
| CN2703866Y (en) * | 2004-06-18 | 2005-06-08 | 中国石化集团胜利石油管理局渤海钻井总公司 | Fishing spear for borehole instrument |
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| CN202266223U (en) * | 2011-08-29 | 2012-06-06 | 中国石油化工股份有限公司 | Reversible downhole fallen article fishing barrel |
| CN202946083U (en) * | 2012-12-17 | 2013-05-22 | 中国石油集团渤海钻探工程有限公司 | Oil pipe joint hoop backing-off device for slim hole well |
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| CN205714065U (en) * | 2016-04-27 | 2016-11-23 | 中国石油化工股份有限公司 | A kind of instrument processing annular space small-gap suture accident |
| CN206053891U (en) * | 2016-09-30 | 2017-03-29 | 四川赛泰克能源科技有限公司 | A kind of reversible cuts dipper |
| CN107288567A (en) * | 2017-08-10 | 2017-10-24 | 贵州高峰石油机械股份有限公司 | A kind of reversible set milling fishing integrated device and its Refloatation method |
| CN207420520U (en) * | 2017-08-10 | 2018-05-29 | 贵州高峰石油机械股份有限公司 | A kind of reversible covers milling fishing integrated device |
| CN207553966U (en) * | 2017-11-30 | 2018-06-29 | 中煤科工集团重庆研究院有限公司 | Self-locking type fishing drill bit |
| CN207829838U (en) * | 2018-02-05 | 2018-09-07 | 牡丹江天擎科技有限公司 | A kind of releasable formula slips fisher |
| CN209100000U (en) * | 2018-09-27 | 2019-07-12 | 核工业北京地质研究院 | A kind of circlip type fisher |
-
2018
- 2018-09-27 CN CN201811130058.2A patent/CN109469458A/en active Pending
Patent Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB264077A (en) * | 1926-07-28 | 1927-01-13 | James Cuthill | Improvements in joints for connecting drill or fishing tools to drill rods and the like |
| CN2122930U (en) * | 1992-06-01 | 1992-11-25 | 刘贵山 | Overshot |
| CN2703866Y (en) * | 2004-06-18 | 2005-06-08 | 中国石化集团胜利石油管理局渤海钻井总公司 | Fishing spear for borehole instrument |
| CN201013287Y (en) * | 2007-03-01 | 2008-01-30 | 华北石油管理局 | Retrievable fishing barrel for reclaiming bridging plug |
| CN201372757Y (en) * | 2009-03-04 | 2009-12-30 | 中国石油天然气股份有限公司 | Multipurpose underground fishing tool |
| CN201439695U (en) * | 2009-07-23 | 2010-04-21 | 中国石油化工股份有限公司 | Pair-buckle type reversing overshot |
| CN201786304U (en) * | 2010-09-26 | 2011-04-06 | 郭爱华 | Fishing tool for back-off packer |
| CN202100208U (en) * | 2011-05-18 | 2012-01-04 | 杨志宏 | Underground work pipe column tripping device |
| CN202266223U (en) * | 2011-08-29 | 2012-06-06 | 中国石油化工股份有限公司 | Reversible downhole fallen article fishing barrel |
| CN202946083U (en) * | 2012-12-17 | 2013-05-22 | 中国石油集团渤海钻探工程有限公司 | Oil pipe joint hoop backing-off device for slim hole well |
| CN203175449U (en) * | 2013-04-02 | 2013-09-04 | 中国石油集团长城钻探工程有限公司 | Double-acting coring reverse circulation salvage basket |
| CN203347721U (en) * | 2013-06-28 | 2013-12-18 | 盘锦勇盛利石油科技开发有限公司 | Retreating drill rod fishing socket |
| CN203856440U (en) * | 2013-12-30 | 2014-10-01 | 中国石油集团渤海钻探工程有限公司 | Bottom catch barrel |
| CN103912231A (en) * | 2014-04-09 | 2014-07-09 | 中国石油化工股份有限公司 | Drill rod male-thread fisher |
| CN104499979A (en) * | 2014-12-29 | 2015-04-08 | 贵州高峰石油机械股份有限公司 | Method and device for salvaging fishes of different diameters without replacing slips |
| CN205714065U (en) * | 2016-04-27 | 2016-11-23 | 中国石油化工股份有限公司 | A kind of instrument processing annular space small-gap suture accident |
| CN206053891U (en) * | 2016-09-30 | 2017-03-29 | 四川赛泰克能源科技有限公司 | A kind of reversible cuts dipper |
| CN107288567A (en) * | 2017-08-10 | 2017-10-24 | 贵州高峰石油机械股份有限公司 | A kind of reversible set milling fishing integrated device and its Refloatation method |
| CN207420520U (en) * | 2017-08-10 | 2018-05-29 | 贵州高峰石油机械股份有限公司 | A kind of reversible covers milling fishing integrated device |
| CN207553966U (en) * | 2017-11-30 | 2018-06-29 | 中煤科工集团重庆研究院有限公司 | Self-locking type fishing drill bit |
| CN207829838U (en) * | 2018-02-05 | 2018-09-07 | 牡丹江天擎科技有限公司 | A kind of releasable formula slips fisher |
| CN209100000U (en) * | 2018-09-27 | 2019-07-12 | 核工业北京地质研究院 | A kind of circlip type fisher |
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Application publication date: 20190315 |
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