CN109339733A - A kind of path suspension blanking plug - Google Patents

A kind of path suspension blanking plug Download PDF

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Publication number
CN109339733A
CN109339733A CN201811451200.3A CN201811451200A CN109339733A CN 109339733 A CN109339733 A CN 109339733A CN 201811451200 A CN201811451200 A CN 201811451200A CN 109339733 A CN109339733 A CN 109339733A
Authority
CN
China
Prior art keywords
blanking plug
mandrel
deblocking
housing
slip
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.)
Granted
Application number
CN201811451200.3A
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Chinese (zh)
Other versions
CN109339733B (en
Inventor
陈学虎
张怀
边鑫
吴德宝
徐元富
桑春
周广荣
郁飞
丁正行
丁立波
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.)
JIANGSU XINCAIYANG ELECTROMECHANICAL TECHNOLOGY Co Ltd
Original Assignee
JIANGSU XINCAIYANG ELECTROMECHANICAL TECHNOLOGY Co Ltd
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Filing date
Publication date
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Priority to CN201811451200.3A priority Critical patent/CN109339733B/en
Publication of CN109339733A publication Critical patent/CN109339733A/en
Application granted granted Critical
Publication of CN109339733B publication Critical patent/CN109339733B/en
Active legal-status Critical Current
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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/10Sealing or packing boreholes or wells in the borehole
    • E21B33/12Packers; Plugs
    • E21B33/128Packers; Plugs with a member expanded radially by axial pressure
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/10Sealing or packing boreholes or wells in the borehole
    • E21B33/12Packers; Plugs
    • E21B33/129Packers; Plugs with mechanical slips for hooking into the casing

Abstract

The invention discloses a kind of paths to hang blanking plug, including blanking plug mandrel, set locking mechanism, anchor mechanism and sealing mechanism, the blanking plug mandrel sets locking mechanism described in being successively arranged with from top to bottom, the anchor mechanism and the sealing mechanism, wherein, the top outer of the blanking plug mandrel is arranged with positioning seat, the outer sheath of the positioning seat is equipped with deblocking housing with matching, the top of the deblocking housing is arranged with solution sealing joint with matching, and it is connected through a screw thread between the bottom end of the solution sealing joint and the top of the deblocking housing, blanking plug with matching, which is provided through, in the middle part of the solution sealing joint sets mandrel, and the blanking plug sets the bottom end of mandrel and connect with the top of the blanking plug mandrel.The utility model has the advantages that design is rationally, easy to use, compared to traditional blanking plug, the present invention has the function of that minor diameter, length be small, light-weight and self righting placed in the middle.

Description

A kind of path suspension blanking plug
Technical field
The present invention relates to nozzle capping tools technical fields, it particularly relates to which a kind of path hangs blanking plug.
Background technique
The controllable snubbing serving technology of oil well can reduce pollution of the well killing fluid to oil reservoir in operation process, improve operation effect Rate reduces operating cost, however when the controllable snubbing serving technique of oil well requires dismounting sucker rod operation equipment, it first has in well Mouth hanger position carries out closure of short duration, needs one kind can be by the small four-way of the small well head of interior latus rectum, then in the cavity Complete the tool blocked in the hanger position of the big big four of diameter.
There are mainly two types of existing capping tools, one is being directly connected with well mouth hanger by screw thread tool, completes It blocks, but it can not pass through the small four-way of the small well head of interior latus rectum;Another kind is conventional blanking plug, and conventional blanking plug majority is adopted Card taking watt suspension, compression packing element sealing, but its suspension and sealing range are small, outstanding by that can not be suspended on well head after the small four-way of well head It is sealed at hanging device, in addition structure is complicated, sets unsealing operation inconvenience, is also unsuitable for controllable snubbing serving process and blocks hanger Needs.
Summary of the invention
Technical assignment of the invention is against the above deficiency, a kind of path suspension blanking plug to be provided, to solve above-mentioned background The problems in technology.
The technical scheme of the present invention is realized as follows:
A kind of path hangs blanking plug, including blanking plug mandrel, sets locking mechanism, anchor mechanism and sealing mechanism, institute State blanking plug mandrel be successively arranged with from top to bottom it is described set locking mechanism, the anchor mechanism and the sealing mechanism, In, the top outer of the blanking plug mandrel is arranged with positioning seat, and the outer sheath of the positioning seat is equipped with solution with matching Housing is sealed, the top of the deblocking housing is arranged with solution sealing joint with matching, and the bottom end of the solution sealing joint and institute It states and is connected through a screw thread between the top of deblocking housing, be provided through blocking with matching in the middle part of the solution sealing joint Device sets mandrel, and the blanking plug sets the bottom end of mandrel and connect with the top of the blanking plug mandrel, it is described set it is locked Mechanism includes internal slip and internal slip fixed ring with matching, and the internal slip is set in the bottom of the deblocking housing Between side and the blanking plug mandrel, the bottom of the internal slip is provided with internal slip fixed ring with matching, the solution Envelope housing bottom be disposed with two groups from top to bottom described in anchor mechanism, the anchor mechanism includes casing slip, slips Piece and slip insert, the outside of the blanking plug mandrel and the bottom for being located at the deblocking housing are provided with slips described in several groups Tooth, the both ends of the slip insert are flexibly connected with the slips piece, one end of the slips piece and far from the slip insert One end is flexibly connected with described sleeve pipe slips, and is passed through between the described sleeve pipe slips at top and the bottom end of the deblocking housing It is threadedly coupled, and is provided with stress between anchor mechanism described in two groups and surely controls connector, the bottom setting of the anchor mechanism is Sealing mechanism is stated, the sealing mechanism includes rubber tube seat, upper holder block, cartridge and lower lock block, the bottom of the blanking plug mandrel Portion's outer sheath is equipped with cartridge described in several groups, and the top of the cartridge is provided with the upper holder block, the upper holder block Top be provided with the rubber tube seat, and be connected through a screw thread between the top of the rubber tube seat and described sleeve pipe slips, it is described The bottom end of cartridge is provided with the lower lock block, and the Basolateral of the blanking plug mandrel passes through screw thread and the locknut Connection, and be that the top of locknut is fixedly connected with the lower lock block.
Further, the top of the blanking plug mandrel, which is offered, sets the connection that mandrel matches with the blanking plug Slot, and the middle part of the solution sealing joint sets the through-hole that mandrel matches with the blanking plug through offering.
Further, the blanking plug sets solid by shear pin between mandrel and the blanking plug mandrel and the positioning seat Fixed connection.
Further, the blanking plug mandrel includes bigger diameter end and the miner diameter end positioned at the bigger diameter end bottom, described big The outer sheath at diameter end is equipped with the positioning seat with matching, and the top outer of the miner diameter end is arranged with matching The internal slip, and the top outer of the miner diameter end is equipped with the external screw thread matched with the internal slip.
Further, the side of the slip insert and anti-skid chequer is provided with far from the side of the blanking plug mandrel.
Further, spacer ring is provided between the cartridge, and the spacer ring is set in the blanking plug core On axis.
Beneficial effects of the present invention:
1, the present invention is designed by minor diameter structure, can reduce circulating resistance by the well section of small internal diameter, is had small Diameter, length is small, light-weight, self righting function placed in the middle.
2, the present invention passes through the setting of bidirectionally anchoring mechanism, so that it can be played in the higher oil/gas well of flow It prevents from moving up effect well.
3, use through the invention, allow blanking plug be suspended on tube inner wall it is any between position, without internal convex Playing structure and can setting any conventional setting tool can be such that it sets, in addition, can be completed by rotating blanking plug mandrel Deblocking, to effectively improve its convenience for setting deblocking.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings Obtain other attached drawings.
Fig. 1 is a kind of structural schematic diagram of path suspension blanking plug according to an embodiment of the present invention;
Fig. 2 is the structural representation that a kind of path suspension blanking plug removal blanking plug according to an embodiment of the present invention sets mandrel Figure;
Fig. 3 is expansion intention according to fig. 2;
Fig. 4 is structural schematic diagram according to another embodiment of the present invention;
Fig. 5 is the structural schematic diagram of another embodiment according to the present invention.
In figure:
1, blanking plug mandrel;2, locking mechanism is set;3, anchor mechanism;4, sealing mechanism;5, positioning seat;6, deblocking is outer Set;7, sealing joint is solved;8, blanking plug sets mandrel;9, link slot;10, through-hole;11, internal slip;12, internal slip fixed ring;13, Casing slip;14, slips piece;15, slip insert;16, stress surely controls connector;17, rubber tube seat;18, upper holder block;19, cartridge; 20, lower lock block;21, locknut;22, spacer ring;23, oil pipe supporting mechanism;24, claw is supported;25, interconnecting piece;26, it rubs Piece.
Specific embodiment
In the description of the present invention, it is to be understood that, term " center ", " transverse direction ", " upper ", " under ", " left side ", " right side ", " Vertically interior ", " outside " orientation or positional relationship of equal instructions in ", " level ", " top ", " bottom ", " be orientation based on the figure or Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.In addition, art Language " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicate institute The quantity of the technical characteristic of instruction." first " is defined as a result, the feature of " second " can explicitly or implicitly include one Or more this feature.In the description of the present invention, unless otherwise indicated, " multiple " are meant that two or more. In addition, term " including " and its any deformation, it is intended that cover and non-exclusive include.
The present invention will be further explained below with reference to the attached drawings and specific examples.
Embodiment one, as shown in Figure 1-3, a kind of path according to an embodiment of the present invention hangs blanking plug, including blanking plug Mandrel 1 sets locking mechanism 2, sealing mechanism 4 and two groups of anchor mechanisms 3, and the blanking plug mandrel 1 is successively arranged from top to bottom Locking mechanism 2, two groups of anchor mechanisms 3 and the sealing mechanism 4 are set described in having, wherein the top of the blanking plug mandrel 1 Portion's outer sheath is equipped with positioning seat 5, and the outer sheath of the positioning seat 5 is equipped with deblocking housing 6 with matching, the deblocking housing 6 top is arranged with solution sealing joint 7 with matching, and the top of the bottom end of the solution sealing joint 7 and the deblocking housing 6 Between be connected through a screw thread, the middle part of the solution sealing joint 7 is provided through blanking plug with matching and sets mandrel 8, and The bottom end that the blanking plug sets mandrel 8 is connect with the top of the blanking plug mandrel 1, and the locking mechanism 2 that sets includes interior Slips 11 and internal slip fixed ring 12 with matching, the internal slip 11 are set in the bottom inside of the deblocking housing 6 Between the blanking plug mandrel 1, the bottom of the internal slip 11 is provided with internal slip fixed ring 12 with matching, described Deblocking housing 6 bottom be disposed with two groups from top to bottom described in anchor mechanism 3, the anchor mechanism 3 include casing slip 13, slips piece 14 and slip insert 15, if the outside of the blanking plug mandrel 1 and be located at it is described deblocking housing 6 bottom be provided with The dry group slip insert 15, the both ends of the slip insert 15 are flexibly connected with the slips piece 14, and the one of the slips piece 14 End and is flexibly connected with described sleeve pipe slips 13 far from one end of the slip insert 15, and the described sleeve pipe slips 13 at top and It is connected through a screw thread between the bottom end of the deblocking housing 6, and is provided with stress between anchor mechanism 3 described in two groups and surely controls connector 16, the bottom of the anchor mechanism 3 is provided with the sealing mechanism 4, the sealing mechanism 4 include rubber tube seat 17, upper holder block 18, Cartridge 19 and lower lock block 20, the bottom outside of the blanking plug mandrel 1 be arranged with three groups described in cartridge 19, it is described close The top of sealing cylinder 19 is provided with the upper holder block 18, and the top of the upper holder block 18 is provided with the rubber tube seat 17, and described It is connected through a screw thread between the top and described sleeve pipe slips 13 of rubber tube seat 17, the bottom end of the cartridge 19 is provided with described The Basolateral of lower lock block 20, the blanking plug mandrel 1 is connect by screw thread with the locknut 21, and is locknut 21 Top be fixedly connected with the lower lock block 20.
Specifically, the top of the blanking plug mandrel 1 offers and sets the link slot that mandrel 8 matches with the blanking plug 9, and the middle part of the solution sealing joint 7 sets the through-hole 10 that mandrel 8 matches with the blanking plug through offering.
Specifically, the blanking plug, which is set, passes through shear pin between mandrel 8 and the blanking plug mandrel 1 and the positioning seat 5 It is fixedly connected.
Specifically, the blanking plug mandrel 1 includes bigger diameter end and the miner diameter end positioned at the bigger diameter end bottom, the major diameter The outer sheath at end is equipped with the positioning seat 5 with matching, and the top outer of the miner diameter end is arranged with matching The internal slip 11, and the top outer of the miner diameter end is equipped with the external screw thread matched with the internal slip 11.
Specifically, the side of the slip insert 15 and being provided with anti-skid chequer far from the side of the blanking plug mandrel 1.It is logical The setting of anti-skid chequer is crossed, to further improve the anchoring effect of anchor mechanism 3.
Specifically, being provided with spacer ring 22 between the cartridge 19, and the spacer ring 22 is set in the blocking On device mandrel 1.
Embodiment two, as shown in figure 4, a kind of path according to an embodiment of the present invention hangs blanking plug, including blanking plug core Axis 1, oil pipe supporting mechanism 23 set locking mechanism 2, anchor mechanism 3 and sealing mechanism 4, and the blanking plug mandrel 1 is from top to bottom Successively be arranged with the oil pipe supporting mechanism 23, it is described set locking mechanism 2, the anchor mechanism 3 and the sealing mechanism 4, Wherein, the oil pipe supporting mechanism 23 include three groups of support claws 24, and three groups of support claws 24 by interconnecting piece 25 with The blanking plug mandrel 1 connects.By the setting of oil pipe supporting mechanism 23, its support effect in oil pipe is further improved Fruit, so that its suspension is more stable.
Embodiment three, as shown in figure 5, being provided with friction plate 26 in the outside of the solution sealing joint 7 of embodiment one.Pass through Bowed friction plate 26 is arranged, so as to be close to coiled tubing inner wall under the action of elastic force, so that it can be produced Raw good frictional force effect, and then good slowing effect can be played for the downlink of blanking plug.
Specific workflow: in use, by the way that the lower end for hanging blanking plug to be connected on sucker rod, then suspension blocking Device is transferred with sucker rod, when reaching the position of design, is opened by quickly transferring the anchor mechanism 3 for making to hang on blanking plug And be embedded on tube inner wall, meanwhile, the cartridge 19 in sealing mechanism 4 is by compand, so that it is to tube inner wall Sealing effect is played, when needing to unseal, rotation blanking plug sets mandrel 8, so that its band blanking plug mandrel 1 is transported upwards It is dynamic, and then anchor mechanism 3 and sealing mechanism 4 is driven to collapse, can above mention blanking plug mandrel 1 at this time can be realized deblocking.
In conclusion being designed by means of above-mentioned technical proposal of the invention by minor diameter structure, small internal diameter can be passed through Well section, reduce circulating resistance, have the function of that minor diameter, length be small, light-weight, self righting placed in the middle;The present invention passes through double Setting to anchor mechanism 3, so that it can be played in the higher oil/gas well of flow prevents from moving up effect well;It is logical Cross use of the invention, allow blanking plug be suspended on tube inner wall it is any between position, can be sat without internal protrusion structure Sealing any conventional setting tool can be such that it sets, in addition, setting mandrel 8 by rotation blanking plug can complete to unseal, from And effectively improve its convenience for setting deblocking.
The technical personnel in the technical field can readily realize the present invention with the above specific embodiments,.But it answers Work as understanding, the present invention is not limited to above-mentioned specific embodiments.On the basis of the disclosed embodiments, the technical field Technical staff can arbitrarily combine different technical features, to realize different technical solutions.

Claims (6)

1. a kind of path hangs blanking plug, which is characterized in that including blanking plug mandrel (1), set locking mechanism (2), anchoring machine Structure (3) and sealing mechanism (4), the blanking plug mandrel (1) is successively arranged with from top to bottom described sets locking mechanism (2), institute State anchor mechanism (3) and the sealing mechanism (4), wherein the top outer of the blanking plug mandrel (1) is arranged with positioning seat (5), the outer sheath of the positioning seat (5) is equipped with deblocking housing (6) with matching, the top card of deblocking housing (6) Equipped with solution sealing joint (7) with matching, and the bottom end of solution sealing joint (7) and the top of deblocking housing (6) it Between be connected through a screw thread, be provided through blanking plug with matching in the middle part of the solution sealing joint (7) and set mandrel (8), And the blanking plug sets the bottom end of mandrel (8) and connect with the top of the blanking plug mandrel (1), it is described to set locking mechanism It (2) include internal slip (11) and internal slip fixed ring with matching (12), the internal slip (11) is set in the deblocking Between the bottom inside of housing (6) and the blanking plug mandrel (1), the bottom of the internal slip (11) is provided with cooperating therewith Internal slip fixed ring (12), it is described deblocking housing (6) bottom be disposed with two groups from top to bottom described in anchor mechanism (3), the anchor mechanism (3) includes casing slip (13), slips piece (14) and slip insert (15), the blanking plug mandrel (1) Outside and be located at it is described deblocking housing (6) bottom be provided with slip insert described in several groups (15), the slip insert (15) Both ends are flexibly connected with the slips piece (14), one end of the slips piece (14) and one end far from the slip insert (15) It is flexibly connected with described sleeve pipe slips (13), and the bottom end of the described sleeve pipe slips (13) at top and deblocking housing (6) Between be connected through a screw thread, and be provided with stress between anchor mechanism described in two groups (3) and surely control connector (16), the anchor mechanism (3) bottom is provided with the sealing mechanism (4), and the sealing mechanism (4) includes rubber tube seat (17), upper holder block (18), sealing The bottom outside of packing element (19) and lower lock block (20), the blanking plug mandrel (1) is arranged with cartridge described in several groups (19), The top of the cartridge (19) is provided with the upper holder block (18), and the top of the upper holder block (18) is provided with the packing element Seat (17), and be connected through a screw thread between the top of the rubber tube seat (17) and described sleeve pipe slips (13), the cartridge (19) bottom end is provided with the lower lock block (20), and the Basolateral of the blanking plug mandrel (1) passes through screw thread and the tightening Nut (21) connection, and be that the top of locknut (21) is fixedly connected with the lower lock block (20).
2. a kind of path according to claim 1 hangs blanking plug, which is characterized in that the top of the blanking plug mandrel (1) End, which is offered, sets the link slot (9) that mandrel (8) matches with the blanking plug, and the middle part of solution sealing joint (7) is run through It offers and sets the through-hole (10) that mandrel (8) matches with the blanking plug.
3. a kind of path according to claim 2 hangs blanking plug, which is characterized in that the blanking plug sets mandrel (8) It is fixedly connected between the blanking plug mandrel (1) and the positioning seat (5) by shear pin.
4. a kind of path according to claim 1 hangs blanking plug, which is characterized in that the blanking plug mandrel (1) includes The outer sheath of bigger diameter end and miner diameter end positioned at the bigger diameter end bottom, the bigger diameter end is equipped with the positioning with matching Seat (5), the top outer of the miner diameter end are arranged with the internal slip (11) with matching, and the top of the miner diameter end Outside is equipped with the external screw thread matched with the internal slip (11).
5. a kind of path according to claim 1 hangs blanking plug, which is characterized in that the side of the slip insert (15) and Side far from the blanking plug mandrel (1) is provided with anti-skid chequer.
6. a kind of path according to claim 1 hangs blanking plug, which is characterized in that between the cartridge (19) It is provided with spacer ring (22), and the spacer ring (22) is set on the blanking plug mandrel (1).
CN201811451200.3A 2018-11-29 2018-11-29 Small-diameter hanging blanking plug Active CN109339733B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811451200.3A CN109339733B (en) 2018-11-29 2018-11-29 Small-diameter hanging blanking plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811451200.3A CN109339733B (en) 2018-11-29 2018-11-29 Small-diameter hanging blanking plug

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CN109339733A true CN109339733A (en) 2019-02-15
CN109339733B CN109339733B (en) 2020-07-28

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3645334A (en) * 1970-04-07 1972-02-29 Schlumberger Technology Corp Well packer apparatus
CN202215195U (en) * 2011-04-20 2012-05-09 韩咏利 Steel wire delivery unidirectional jar-type obstruction device inside pipe
CN202300300U (en) * 2011-09-26 2012-07-04 通化市前进石油机械有限公司 Two-way mechanical blanking plug
CN102733776A (en) * 2012-07-19 2012-10-17 马中原 Fishable tubing plug
CN203420662U (en) * 2013-09-06 2014-02-05 中国石油天然气股份有限公司 Small-diameter oil pipe plug
CN203925409U (en) * 2014-06-25 2014-11-05 江苏力克石油机械有限公司 Tubing plug
CN204371209U (en) * 2014-12-31 2015-06-03 牡丹江博实石油机械科技有限公司 Salvagable oil pipe stain eliminating blanking plug
CN105401910A (en) * 2015-12-18 2016-03-16 宝鸡市赛孚石油机械有限公司 Double-card removable oil pipe obstruction device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3645334A (en) * 1970-04-07 1972-02-29 Schlumberger Technology Corp Well packer apparatus
CN202215195U (en) * 2011-04-20 2012-05-09 韩咏利 Steel wire delivery unidirectional jar-type obstruction device inside pipe
CN202300300U (en) * 2011-09-26 2012-07-04 通化市前进石油机械有限公司 Two-way mechanical blanking plug
CN102733776A (en) * 2012-07-19 2012-10-17 马中原 Fishable tubing plug
CN203420662U (en) * 2013-09-06 2014-02-05 中国石油天然气股份有限公司 Small-diameter oil pipe plug
CN203925409U (en) * 2014-06-25 2014-11-05 江苏力克石油机械有限公司 Tubing plug
CN204371209U (en) * 2014-12-31 2015-06-03 牡丹江博实石油机械科技有限公司 Salvagable oil pipe stain eliminating blanking plug
CN105401910A (en) * 2015-12-18 2016-03-16 宝鸡市赛孚石油机械有限公司 Double-card removable oil pipe obstruction device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
高剑锋等: "不压井作业用堵塞工具研制及应用 ", 《石油矿场机械》 *

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