CN209539306U - Expansion type female coupling tap - Google Patents

Expansion type female coupling tap Download PDF

Info

Publication number
CN209539306U
CN209539306U CN201920178724.3U CN201920178724U CN209539306U CN 209539306 U CN209539306 U CN 209539306U CN 201920178724 U CN201920178724 U CN 201920178724U CN 209539306 U CN209539306 U CN 209539306U
Authority
CN
China
Prior art keywords
junk
female coupling
middle section
ontology
coupling tap
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 - Fee Related
Application number
CN201920178724.3U
Other languages
Chinese (zh)
Inventor
潘晓春
鞠鑫晔
孙家晖
张彦杰
石旭光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daqing Oilfield Co Ltd
China Petroleum and Natural Gas Co Ltd
Original Assignee
Daqing Oilfield Co Ltd
China Petroleum and Natural Gas Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daqing Oilfield Co Ltd, China Petroleum and Natural Gas Co Ltd filed Critical Daqing Oilfield Co Ltd
Priority to CN201920178724.3U priority Critical patent/CN209539306U/en
Application granted granted Critical
Publication of CN209539306U publication Critical patent/CN209539306U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Earth Drilling (AREA)

Abstract

A kind of expansion type female coupling tap.Mainly solve the problems, such as that existing salvaging uses thread making mode low success rate of when salvaging hard junk with female coupling tap.It is characterized by: ontology (1) the middle section diameter is less than both ends diameter, ontology (1) right end is provided with horn mouth (4), the strip hole (3) of several axial directions is provided on the side wall of middle section, and middle section inner wall is equipped with saw-tooth thread (3).The expansion type female coupling tap is salvaged after can holding hard junk tightly, increases the success rate for salvaging hard junk.

Description

Expansion type female coupling tap
Technical field
The utility model relates to oilfield, specifically a kind of expansion type female coupling tap.
Background technique
When salvaging the movable bar class junk of underground fishing hard in oil well repairing operation at present, usually used female coupling tap is nothing Stitch steel pipe, internal to go out internal screw thread according to certain taper vehicle, when salvaging utilizes jointed rod, adds a lower pressure to rotate, in junk Screw thread is produced in upper pressure, realizes the salvaging of junk.But since hard, motion bar class junk hardness have been above female coupling tap hardness, And junk is not fixed, therefore is difficult to produce screw thread in such a way that original female coupling tap is by taper thread making, leads to junk success rate It is low.
Utility model content
In order to overcome existing salvaging low success rate of deficiency, this reality when salvaging hard junk using thread making mode with female coupling tap A kind of expansion type female coupling tap is provided with novel, which salvages after can holding hard junk tightly, increases salvaging hard The success rate of junk.
The technical solution of the utility model is: a kind of expansion type female coupling tap, including ontology, ontology middle section diameter is less than two Diameter is held, ontology right end is provided with horn mouth, the strip hole of several axial directions is provided on the side wall of middle section, and middle section inner wall is equipped with saw Tooth form screw thread.
The utility model has the following beneficial effects: when device salvaging hard is fallen, not needed due to taking above scheme The thread making on junk, but clamp junk by elasticity, substantially increase the success rate of salvaging.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the sectional view of the A-A along Fig. 1;
Fig. 3 is the enlarged drawing in Fig. 1 at I.
1- ontology in figure, 2- saw-tooth thread, 3- strip hole, 4- horn mouth.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
As shown in Fig. 1 to Fig. 3, a kind of expansion type female coupling tap, including ontology 1, it is straight that the 1 middle section diameter of ontology is less than both ends Diameter, and middle section internal diameter is slightly less than salvaging hard junk diameter.1 left end of ontology is internal screw thread, can be connected with drilling rod, and in middle section Wall is equipped with saw-tooth thread 3, can enhance surface hardness with increasing friction force, surface carburization processing, length matches with junk. The strip hole 3 of several axial directions is provided on 1 middle section side wall of ontology, making ontology radially has certain elasticity, when junk into When entering into ontology, it can be held tightly.1 right end of ontology is provided with horn mouth 4, can be convenient junk entrance.
When salvaging hard junk, which is connected by screw thread with drilling rod, in decentralization, underground hard junk Body interior can be entered by horn mouth 4, when entering ontology middle section, by the deflection of itself, it is certain to be bumped into junk Length is realized by screen resilience occlusion junk and is salvaged.

Claims (1)

1. a kind of expansion type female coupling tap, including ontology (1), it is characterised in that: ontology (1) the middle section diameter is less than both ends diameter, Ontology (1) right end is provided with horn mouth (4), the strip hole (3) of several axial directions is provided on the side wall of middle section, and middle section inner wall is equipped with Saw-tooth thread (2).
CN201920178724.3U 2019-01-31 2019-01-31 Expansion type female coupling tap Expired - Fee Related CN209539306U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920178724.3U CN209539306U (en) 2019-01-31 2019-01-31 Expansion type female coupling tap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920178724.3U CN209539306U (en) 2019-01-31 2019-01-31 Expansion type female coupling tap

Publications (1)

Publication Number Publication Date
CN209539306U true CN209539306U (en) 2019-10-25

Family

ID=68272903

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920178724.3U Expired - Fee Related CN209539306U (en) 2019-01-31 2019-01-31 Expansion type female coupling tap

Country Status (1)

Country Link
CN (1) CN209539306U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111911106A (en) * 2020-08-07 2020-11-10 盾构及掘进技术国家重点实验室 Fishing device for taking out shallow drilling core and using method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111911106A (en) * 2020-08-07 2020-11-10 盾构及掘进技术国家重点实验室 Fishing device for taking out shallow drilling core and using method thereof

Similar Documents

Publication Publication Date Title
CN101307845A (en) Oil conduit screwed connection structure
CN209539306U (en) Expansion type female coupling tap
CN201221652Y (en) Oil conduit screw connection structure
CN205823218U (en) Sucker rod socket
CN207974788U (en) A kind of novel continuous oil pipe anti-dropping apparatus
CN201103360Y (en) Underground falling objects salvaging barrel
CN204782834U (en) Novel continuous outside of tubes slips connector
CN204186715U (en) A kind of metal rod connector for building of improvement
CN205689142U (en) Sucker rod anti-abrasion helps takes out erection device
CN207420516U (en) A kind of preventing oil pipe split junk mill
CN209236295U (en) A kind of double helix orthopaedic soft drill
CN201865595U (en) Damage-free oil tube centralizer
CN204877353U (en) Oil pipe hangs out instrument
CN206816200U (en) One kind is without dental impression drill pipe slip
CN220415311U (en) Bridge treatment device in drilled hole
CN204851108U (en) Sleeve pipe trades set tieback ware that links closely
CN200992960Y (en) Sucker rod strong magnetic centralizer
CN204419061U (en) Oil producing operation buttress thread tool joint
CN204532213U (en) A kind of well head frizing self-sealing head device of improvement
CN208572938U (en) Fishing line anti-drop connector of going fishing has
CN203239286U (en) Impulse type steam distributing valve
CN203271613U (en) Joint with variable diameters and high wear resistance of oil well fracturing pipeline
CN212154984U (en) High-sealing-performance carbon steel pipe of vaporizer
CN104110545B (en) Quick-insertion type pipe joint
CN220336842U (en) Extraction pipe and hole sealing pipe connecting device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20191025

Termination date: 20210131

CF01 Termination of patent right due to non-payment of annual fee