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CN208702372U - Multifunctional protective blanking plug - Google Patents

Multifunctional protective blanking plug Download PDF

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Publication number
CN208702372U
CN208702372U CN201821351937.3U CN201821351937U CN208702372U CN 208702372 U CN208702372 U CN 208702372U CN 201821351937 U CN201821351937 U CN 201821351937U CN 208702372 U CN208702372 U CN 208702372U
Authority
CN
China
Prior art keywords
gland
blanking plug
fishing rod
sleeve
cam
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.)
Active
Application number
CN201821351937.3U
Other languages
Chinese (zh)
Inventor
张化庆
吕楠
李自伟
王爽
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.)
Petrochina Co Ltd
Daqing Oilfield Co Ltd
Original Assignee
Petrochina Co Ltd
Daqing Oilfield 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 Petrochina Co Ltd, Daqing Oilfield Co Ltd filed Critical Petrochina Co Ltd
Priority to CN201821351937.3U priority Critical patent/CN208702372U/en
Application granted granted Critical
Publication of CN208702372U publication Critical patent/CN208702372U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

Multifunctional protective blanking plug. The problem that the existing blanking plug is difficult to salvage in the underground scaling mode, the fishing rod cannot be salvaged after being broken, and the eccentric hole of the water distributor is separated from the blanking plug due to the fact that the cam of the blanking plug fails can be solved. The fishing rod is sleeved with a gland joint, the lower end of the gland joint extends outwards to form an annular protrusion, the outer side of the gland joint is sleeved with a gland sleeve, the upper end of the gland sleeve extends inwards to form an annular protrusion, the annular protrusion at the upper end of the gland sleeve and the annular protrusion at the lower end of the gland joint are matched and limited with each other, the gland sleeve is in threaded connection with the blanking plug main body through an external thread arranged on the outer wall, the lower end of the fishing rod penetrates through the gland joint and the gland sleeve to be connected with one end of a cam chuck in the blanking plug main body, and the other end of the cam chuck is connected with a double-cam shaft connected in the blanking plug; a spring is sleeved between the gland joint on the fishing rod and the cam chuck. Novel structure, convenient operation and use and practicality are strong.

Description

Multifunctional protection type blanking plug
Technical field
The utility model belongs to oil field ancillary equipment, blanking plug used in especially a kind of oil field, specifically multi-functional Protection type blanking plug.
Background technique
In field of oil field oil extraction, seperated layer water injection oil recovery is generallyd use in order to improve recovery ratio;In the injection well downhole flow regulator of seperated layer water injection Dispensing has blanking plug;Blanking plug is mounted on underground for a long time, due to reasons in structure, is influenced by high temperature, hyperbaric environment, easily in blanking plug Intractable rust deposite is formed at fishing rod, it is integral with gland corrosion, cause to occur to block to fall instrument after being difficult to be salvaged or reaping Accident;Umbrella step on fishing rod is influenced easily to wreck by above-mentioned environment, and blanking plug can not be salvaged after wrecking, can not Complete geology dynamic adjustment requirement;The failure easy to wear in long-term work of the cam of blanking plug, can not securely be stuck in injection well downhole flow regulator In eccentric orfice, after deviating from eccentric orfice, underground is fallen into, trouble of lost tool in hole is caused, influenced to fill the water qualification rate, increase manufacturing enterprise's cost.
Summary of the invention
It is difficult to salvage to solve existing blanking plug in downhole scaling, fishing rod can not salvage after wrecking and blanking plug The problem of cam failure abjection injection well downhole flow regulator eccentric orfice.It can efficiently be salvaged after there is blanking plug fouling the utility model proposes one kind Out, blanking plug can be also salvaged after retrievable pole wrecks, replacement fishing rod is convenient and blanking plug can be securely stuck in injection well downhole flow regulator bias Feature in hole is conducive to the popularization and application in oil field, reduces economic loss, improves the blanking plug of testing efficiency, particular technique Scheme is as follows:
Multifunctional protection type blanking plug, including fishing rod are socketed with gland connector, gland connector lower end on the fishing rod It is outward extended with circular protrusion, is socketed with gland sleeve on the outside of gland connector, gland sleeve upper end extends internally and has circular protrusion, The circular protrusion that gland sleeve upper end extends internally is matched each other with the outwardly extending circular protrusion in gland connector lower end Limit is closed, the gland sleeve is connect by the external screw thread that outer wall is equipped with blanking plug main body screw, the fishing rod lower end Connect across gland connector and gland sleeve in the intracorporal cam card of blanking plug master first end, the other end of cam clamp and Axis connection is connected together in the intracorporal double cam of blanking plug master;It is covered between gland connector and cam clamp on the fishing rod It is connected to spring, end in contact under the spring upper end and gland connector, lower spring end and cam clamp upper-end contact.
The fishing rod upper end is equipped with the annular protrusion step of the different umbrella of at least two diameters.
The utility model has the beneficial effects that can efficiently salvage after capable of making blanking plug fouling, retrievable pole also can after wrecking Blanking plug is salvaged, the feature that fishing rod is convenient and can securely be stuck in blanking plug in injection well downhole flow regulator eccentric orfice is replaced, is conducive to oil The popularization and application in field reduce economic loss, improve testing efficiency.Structure novel, operation and easy to use and practical.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: 1- fishing rod, 2- gland connector, 3- gland sleeve, 4- spring, 5- blanking plug main body, 6- cam clamp, 7- Double cam.
Specific embodiment
In order to make it easy to understand, being further illustrated below with reference to Fig. 1 to the utility model:
Embodiment 1: multifunctional protection type blanking plug, including fishing rod 1 are socketed with gland connector 2 on the fishing rod 1, 2 lower end of gland connector is outward extended with circular protrusion, is socketed with gland sleeve 3 on the outside of gland connector 2,3 upper end of gland sleeve to It is inside extended with circular protrusion, the circular protrusion that 3 upper end of gland sleeve extends internally and 2 lower end of gland connector are to extension The circular protrusion stretched is fitted to each other limit, the external screw thread and 5 screw thread of blanking plug main body that the gland sleeve 3 is equipped with by outer wall Connection, 1 lower end of fishing rod pass through gland connector 2 and gland sleeve 3 and the cam clamp 6 one in blanking plug main body 5 End connection, double cam 7 of the other end and axis connection of cam clamp 6 in blanking plug main body 5 are connected together;The fishing rod 1 On gland connector 2 and cam clamp 6 between be socketed with spring 4,4 upper end of spring and the lower end in contact of gland connector 2, bullet 4 lower end of spring and 6 upper-end contact of cam clamp.
Embodiment 2: it is further, in order to more preferably increase the practical function of the present apparatus, and convenient for salvaging, the salvaging 1 upper end of bar is equipped with the annular protrusion step of the different umbrella of at least two diameters.
The gland connector 2 and gland sleeve 3 of the multifunctional protection type blanking plug are two different components, in male-female engagement Optimize structure;At fishing rod 1 when fouling, for fishing tool by constantly upper and lower jarring gland connector 2, gland connector 2 can be downward 20mm, and compressed spring 4 are run, then elastic force is discharged by spring 4, by the rust deposite at gland connector 2 and fishing rod 1 is shatter and bullet Out, it realizes and efficiently salvages blanking plug;The multifunctional protection type blanking plug is the fishing rod 1 for belonging to variable diameter property, due to using The umbrella step of two kinds of different-diameters, top thin footpath umbrella outer diameter of step 8mm, lower part particle size umbrella outer diameter of step 12mm.Upper After portion's thin footpath umbrella step wrecks, lower part particle size umbrella step is salvaged using fishing tool, blanking plug can be salvaged;This is multi-functional Protection type blanking plug is able to extend service life of the blanking plug in corrosion, wear due to using two cams;Double cam 7 be in symmetrical two different directions detents, increases the success rate for the injection well downhole flow regulator eccentric orfice that blanking plug blocks.The utility model provides more Function protecting type blanking plug has the advantages that simple in construction, easy to disassemble and assemble, easily operated, safety coefficient height.
The utility model has the advantages that structure novel, operation and easy to use and practical.The existing blanking plug of effective solution is in well The problem of lower fouling is difficult to salvage, and fishing rod can not be salvaged after wrecking and injection well downhole flow regulator eccentric orfice is deviate from the failure of blanking plug cam.

Claims (2)

1. multifunctional protection type blanking plug, including fishing rod (1), it is characterised in that: be socketed with gland on the fishing rod (1) and connect Head (2), gland connector (2) lower end are outward extended with circular protrusion, are socketed with gland sleeve (3), gland on the outside of gland connector (2) Sleeve (3) upper end extends internally and has circular protrusion, the circular protrusion that gland sleeve (3) upper end extends internally and the gland The outwardly extending circular protrusion in connector (2) lower end is fitted to each other limit, and the gland sleeve (3) passes through the outer spiral shell that outer wall is equipped with Line is threadedly coupled with blanking plug main body (5), and fishing rod (1) lower end passes through gland connector (2) and gland sleeve (3) and is in Cam clamp (6) one end connection in blanking plug main body (5), the other end and axis connection of cam clamp (6) are in blanking plug main body (5) double cam (7) in is connected together;It is socketed between gland connector (2) and cam clamp (6) on the fishing rod (1) Have spring (4), end in contact under spring (4) upper end and gland connector (2), is terminated on spring (4) lower end and cam clamp (6) Touching.
2. multifunctional protection type blanking plug as described in claim 1, it is characterised in that: fishing rod (1) upper end is equipped with extremely The annular protrusion step of the different umbrella of few two diameters.
CN201821351937.3U 2018-08-21 2018-08-21 Multifunctional protective blanking plug Active CN208702372U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821351937.3U CN208702372U (en) 2018-08-21 2018-08-21 Multifunctional protective blanking plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821351937.3U CN208702372U (en) 2018-08-21 2018-08-21 Multifunctional protective blanking plug

Publications (1)

Publication Number Publication Date
CN208702372U true CN208702372U (en) 2019-04-05

Family

ID=65943810

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821351937.3U Active CN208702372U (en) 2018-08-21 2018-08-21 Multifunctional protective blanking plug

Country Status (1)

Country Link
CN (1) CN208702372U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110107267A (en) * 2019-05-29 2019-08-09 大庆华油石油科技开发有限公司 A kind of distributor being conveniently replaceable water nozzle in blanking plug

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110107267A (en) * 2019-05-29 2019-08-09 大庆华油石油科技开发有限公司 A kind of distributor being conveniently replaceable water nozzle in blanking plug

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