CN208024320U - A kind of anti-sticking fishing cup of open hole well band special bootstrap block screw type safe - Google Patents

Abstract

The utility model discloses a kind of anti-sticking fishing cups of open hole well band special bootstrap block screw type safe,Spiral bootstrap block is provided on jackshaft,When crossing set pipe construction,Especially in the case that construction well type is more special,Such as inclined shaft,Horizontal well,Multilateral well,Deepened well and sidetracked hole etc.,During construction finishes upper lifting pipe post,It is acted on using the vortex variation that spiral bootstrap block top is upper vortex item,The cup body that casing enters bore hole was set smoothly to rise out,Prevent the generation of lock of tool drilling,Hanging tag of can effectively avoiding the problem that conventional open hole well underground work fishing cup often occurs can carry Chu Lai in ferrule boot,The lower part of spiral bootstrap block is lower spiral bar simultaneously,The firm support to cup body is formed between cup upper end and jackshaft,Cup body from barefoot interval sleeve pipe when all directions can uniform stressed,It will not over-tilting,So that cup body outer barrel is easier sleeve pipe.

Description

A kind of anti-sticking fishing cup of open hole well band special bootstrap block screw type safe

Technical field

The utility model belongs to the technical field of oil and gas development equipment more particularly to a kind of open hole well band special bootstrap block spiral shell The rotating anti-sticking fishing cup of safety.

Background technology

In order to make certain distinguishingly intervals keep original state in drilling process, and to certain special layers in drilling well Position tripping in protective casing then carry out intensification drilling again, when accident occurs for underground, for barefoot interval fishing device also at For a kind of essential needs, all there is defect in the tool used in many straight wells especially in high angle hole.It is conventional For barefoot interval fishing cup since cup body size is big and upper surface is planar structure, it is outstanding during oil drilling and well workover , when pulling out of hole, the fishing cup for being likely to occur casing tripping in is stuck in ferrule boot and rises and do not come out, especially big hole deviation well for it In this probability bigger, so that original minor accident is become major break down.

Utility model content

For the above existing problem, the utility model provides a kind of open hole well band special bootstrap block screw type safe Anti-sticking fishing cup is provided with spiral bootstrap block on jackshaft, when crossing set pipe construction, especially when construction well type is more special In the case of, such as inclined shaft, horizontal well, multilateral well, deepened well and sidetracked hole, during construction finishes upper lifting pipe post, It is acted on using the vortex variation that spiral bootstrap block top is upper vortex item, the cup body that casing enters bore hole was enable smoothly to rise Go out, it is therefore prevented that the generation of lock of tool drilling can effectively avoid what conventional open hole well underground work fishing cup often occurred from hanging tag Not the problem of ferrule boot can carry Chu Lai, while the lower part of spiral bootstrap block is lower spiral bar, between cup upper end and jackshaft Form firm support to cup body, cup body from barefoot interval sleeve pipe when all directions can uniform stressed, will not excessively incline Tiltedly, so that cup body outer barrel is easier sleeve pipe.

The technical solution of the utility model is：

A kind of the utility model offer anti-sticking fishing cup of open hole well band special bootstrap block screw type safe, including top connection, Jackshaft, cup body, lower contact and cup chamber, the upper and lower ends of the jackshaft be fixedly installed respectively the top connection and it is described under Connector, the cup body is nested on the jackshaft and lower end is fixed on the upper surface of the lower contact, the cup body Opening up and space between the jackshaft be the cup chamber, the cup chamber by the upper end opening of the cup body with The external world is connected to, and spiral bootstrap block, the spiral guiding are fixedly installed around the jackshaft from top to bottom on the jackshaft The upper end of block is fixed at the lower end of the top connection and lower end be fixed at the cup body inner wall and the jackshaft it Between.

Further, the spiral bootstrap block includes upper vortex item and lower spiral bar, the upper vortex item and the lower spiral shell Revolve item the hand of spiral it is identical, the upper vortex item be in the top of the lower spiral bar and with the lower spiral bar stationary phase Even, the radius of spin of the upper lower end that is vortexed is equal with the radius of spin of lower spiral bar, and the upper vortex item is in from upper And the cup intracavitary is stretched into the spiral type strip structure that lower radius of turn becomes larger, the lower end of the upper vortex item, under described Spiral bar twist strip structure and is fixed between the cup body and the jackshaft.

Further, the spacing between the lower end and the upper end of the cup body of the upper vortex item is 10mm-40mm.

Further, the upper end of the top connection is respectively arranged with built-in end and nested end with the lower end of the lower contact, The mutually nested cooperation of the shape of the built-in end and the shape at the nested end and it is respectively arranged with external screw thread and internal thread.

As a result of above-mentioned technology, be allowed to specific positive beneficial effect compared with prior art is the utility model：

1, the utility model is provided with spiral bootstrap block on jackshaft, when crossing set pipe construction, especially when construction well In the case that type is more special, such as inclined shaft, horizontal well, multilateral well, deepened well and sidetracked hole, construction finish upper lifting pipe post During, it is acted on using the vortex variation that spiral bootstrap block top is upper vortex item, casing was enable to enter the cup body of bore hole It is enough smoothly to rise, it is therefore prevented that the generation of lock of tool drilling can effectively avoid conventional open hole well underground work fishing cup from often occurring Hang tag the problem of ferrule boot can carry Chu Lai.

2, the lower part of spiral bootstrap block is lower spiral bar in the utility model, the formation pair between cup upper end and jackshaft The firm support of cup body, cup body from barefoot interval sleeve pipe when all directions can uniform stressed, will not over-tilting so that Cup body outer barrel is easier sleeve pipe.

3, the utility model structure is safe and reliable, has good market prospects.

4, the utility model good product performance, service life are long.

5, the utility model is easy to use, convenient and efficient.

Description of the drawings

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the vertical view of the utility model；

Fig. 3 is the sectional view at A-A in Fig. 2.

In figure：1- built-in ends, 2- top connections, 3- spiral bootstrap blocks, 4- jackshafts, 5- cup bodies, 6- lower contacts, 7- are nested It holds, 8- glasss of chambers, be vortexed item on 31-, spiral bar under 32-.

Specific implementation mode

In order to clarify the technical characteristics of the invention, below by specific implementation mode, and its attached drawing is combined, to this reality It is described in detail with novel.Following disclosure provides many different embodiments or example is used for realizing the utility model Different structure.In order to simplify the disclosure of the utility model, hereinafter the component of specific examples and setting are described.In addition, The utility model can in different examples repeat reference numerals and/or letter.This repetition is to simplify and clear mesh , the relationship between discussed various embodiments and/or setting itself is not indicated.It should be noted that illustrated in the accompanying drawings Component is not drawn necessarily to scale.The description to known assemblies and treatment technology and process is omitted to avoid not in the utility model Necessarily limit the utility model.

In addition, in the description of the present invention, it should be noted that term " center ", "center", "upper", "lower", The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "inner", "outside" be orientation based on ... shown in the drawings or Position relationship is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated device or member Part must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention. In addition, term " first ", " second ", " third " are used for description purposes only, it is not understood to indicate or imply relative importance.

As shown in attached drawing 1- attached drawings 3, it is anti-sticking that the utility model provides a kind of open hole well band special bootstrap block screw type safe Fishing cup, including top connection 2, jackshaft 4, cup body 5, lower contact 6 and cup chamber 8, the upper and lower ends of jackshaft 4 are fixedly installed respectively There are top connection 2 and lower contact 6, cup body 5 is nested on jackshaft 4 and lower end is fixed on the upper surface of lower contact 6, cup body 5 opening up and between jackshaft 4 space is cup chamber 8, and cup chamber 8 is in communication with the outside by the upper end opening of cup body 5, in It is fixedly installed spiral bootstrap block 3 around jackshaft 4 from top to bottom on countershaft 4, the upper end of spiral bootstrap block 3 is fixed at The lower end and lower end of connector 2 are fixed between 5 inner wall of cup body and jackshaft 4.

Spiral bootstrap block 3 includes upper vortex item 31 and lower spiral bar 32, the spiral side of upper vortex item 31 and lower spiral bar 32 To identical, upper vortex item 31 is in the top of lower spiral bar 32 and is fixedly linked with lower spiral bar 32, upper 31 lower end of vortex item The radius of spin is equal with the radius of spin of lower spiral bar 32, and upper vortex item 31 is in the vortex that radius of turn becomes larger from top to bottom The lower end of shape strip structure, upper vortex item 31 is stretched into glass chamber 8, and lower spiral bar 32 twist strip structure and is fixed at Between cup body 5 and jackshaft 4.

Spacing between the lower end and the upper end of cup body 5 of upper vortex item 31 is 10mm-40mm.

The upper end of top connection 2 is respectively arranged with built-in end 1 and nested end 7, the shape of built-in end 1 with the lower end of lower contact 6 With the shape at nested end 7 it is mutually nested cooperation and be respectively arranged with external screw thread and internal thread.

By using above-mentioned technical proposal, spiral bootstrap block 3 is provided on jackshaft 4, when crossing set pipe construction, especially It is in the case that construction well type is more special, such as inclined shaft, horizontal well, multilateral well, deepened well and sidetracked hole have been constructed During finishing upper lifting pipe post, is acted on using the vortex variation that 3 top of spiral bootstrap block is upper vortex item 31, casing was made to enter The cup body 5 of bore hole can smoothly rise out, it is therefore prevented that the generation of lock of tool drilling can effectively avoid conventional open hole well underground work from beating What fishing cup often occurred hangs tag the problem of ferrule boot can carry Chu Lai, while the lower part of spiral bootstrap block 3 is lower spiral bar 32, Form firm support to cup body 5 between 5 upper end of cup body and jackshaft 4, cup body 5 from barefoot interval sleeve pipe when each side To can uniform stressed, will not over-tilting so that 5 outer barrel of cup body is easier sleeve pipe.

In the description of the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " company Connect ", " fixation " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be Mechanical connection can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary two The interaction relationship of connection or two elements inside element.And the material side used by each parts of the utility model Face, if the parts with the description of " elasticity " term, what be may be used is spring steel material, can also be using rubber material Matter；If the parts with the description of " rigidity " term, what be may be used is steel material, can also be using hard engineering plastic Expect material.For the ordinary skill in the art, above-mentioned term can be understood in the utility model according to concrete condition In concrete meaning.

One embodiment of the utility model is described in detail above, but the content is only the utility model Preferred embodiment should not be considered as limiting the scope of the present invention.It is all to be made according to application scope of the utility model All the changes and improvements etc., should all still belong within the patent covering scope of the utility model.

Claims (4)

1. a kind of anti-sticking fishing cup of open hole well band special bootstrap block screw type safe, including top connection, jackshaft, cup body, under connect Head and cup chamber, the upper and lower ends of the jackshaft are fixedly installed the top connection and the lower contact respectively, and the cup body is embedding Be sleeved on the jackshaft and lower end be fixed on the upper surface of the lower contact, the cup body opening up and with institute The space stated between jackshaft is the cup chamber, and the cup chamber is in communication with the outside by the upper end opening of the cup body, feature It is：It is fixedly installed spiral bootstrap block around the jackshaft from top to bottom on the jackshaft, the spiral bootstrap block Upper end is fixed at the lower end of the top connection and lower end and is fixed between the cup body inner wall and the jackshaft.

2. a kind of anti-sticking fishing cup of open hole well band special bootstrap block screw type safe according to claim 1, feature exist In：The spiral bootstrap block includes upper vortex item and lower spiral bar, the hand of spiral of the upper vortex item and the lower spiral bar Identical, the upper vortex item is in the top of the lower spiral bar and is fixedly linked with the lower spiral bar, the upper vortex item The radius of spin of lower end is equal with the radius of spin of lower spiral bar, and the upper vortex item is gradual in radius of turn from top to bottom The cup intracavitary is stretched into the spiral type strip structure to become larger, the lower end of the upper vortex item, the lower spiral bar twist item It shape structure and is fixed between the cup body and the jackshaft.

3. a kind of anti-sticking fishing cup of open hole well band special bootstrap block screw type safe according to claim 2, feature exist In：Spacing between the lower end and the upper end of the cup body of the upper vortex item is 10mm-40mm.

4. a kind of anti-sticking salvaging of open hole well band special bootstrap block screw type safe according to any one of claim 1-3 Cup, it is characterised in that：The upper end of the top connection is respectively arranged with built-in end and nested end with the lower end of the lower contact, described The mutually nested cooperation of the shape of built-in end and the shape at the nested end and it is respectively arranged with external screw thread and internal thread.