CN206617111U - Lift-sub pin - Google Patents
Lift-sub pin Download PDFInfo
- Publication number
- CN206617111U CN206617111U CN201720159727.3U CN201720159727U CN206617111U CN 206617111 U CN206617111 U CN 206617111U CN 201720159727 U CN201720159727 U CN 201720159727U CN 206617111 U CN206617111 U CN 206617111U
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- CN
- China
- Prior art keywords
- drop handle
- lift
- sub pin
- elastic
- elevator
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Abstract
The utility model provides a kind of lift-sub pin, including：Shank, drop handle seat and elastic drop handle；The shank is fixedly connected on the lower section of drop handle seat；The openend of elastic drop handle is inserted in the perforate of drop handle seat both sides respectively；The elastic drop handle is the elastic drop handle for being fixed on lift-sub pin on elevator.The potential safety hazard of lift-sub pin ejection during use can be avoided by the lift-sub pin, and then has reduced the potential safety hazard of lower tubular column.
Description
Technical field
The utility model embodiment is related to oil field drilling well workover technology field, more particularly to a kind of lift-sub pin.
Background technology
When playing lower tubular column using elevator, lift-sub pin need to be inserted, prevents suspension ring from being ejected from elevator both sides.Lift-sub pin conduct
Unique safety device in elevator and suspension ring connection procedure, it plays vital effect during the drilling and repairing well of oil field.
Existing magnetic lift-sub pin is to be adsorbed lift-sub pin on elevator body using strong magnetic, plays limitation suspension ring
Effect.But magnetic lift-sub pin is during long-term use, easily occur demagnetization, and be stained with greasy filth reduction magnetic etc. to ask
Topic, so as to be that lower tubular column has buried potential safety hazard.
Utility model content
The utility model provides a kind of lift-sub pin, and elevator pin bullet during use can be avoided by the lift-sub pin
The potential safety hazard gone out, and then reduced the potential safety hazard of lower tubular column.
In a first aspect, the utility model provides a kind of lift-sub pin, including：Shank, drop handle seat and elastic drop handle；The pin
Body is fixedly connected on the lower section of the drop handle seat；The perforate of the drop handle seat both sides is inserted in the openend of the elastic drop handle respectively
In；The elastic drop handle is the elastic drop handle for being fixed on the lift-sub pin on elevator.
With reference in a first aspect, in the first embodiment of first aspect, being shifted to install above and below the perforate in institute
State the both sides of drop handle seat.
With reference to the first embodiment of first aspect, in second of embodiment of first aspect, described
Before lift-sub pin use, misplaced above and below the openend of the elastic drop handle of original state, and the elasticity of original state
Drop handle front-back staggered.
With reference to second of embodiment of first aspect, in the third embodiment of first aspect, initial shape
Dislocation distance is identical with dislocation distance above and below the perforate above and below the openend of the elastic drop handle of state.
With reference to second of embodiment of first aspect, in the 4th kind of embodiment of first aspect, initial shape
The front-back staggered distance of the elastic drop handle of state is 60mm；And the side of the elastic drop handle of original state and the elasticity
The base of drop handle is in 80 degree of angles.
With reference to any one of the 4th kind of embodiment of first aspect to first aspect, the 5th kind in first aspect can
In embodiment, the elastic drop handle is spring steel wire.
With reference to any one of the 4th kind of embodiment of first aspect to first aspect, the 6th kind in first aspect can
In embodiment, in addition to：Safe cord hole；The safe cord hole is fixedly connected on the top of the drop handle seat.
The utility model provides a kind of lift-sub pin, including：Shank, drop handle seat and elastic drop handle；The shank is fixedly connected
In the lower section of drop handle seat；The openend of elastic drop handle is inserted in the perforate of drop handle seat both sides respectively；The elastic drop handle is for inciting somebody to action
Lift-sub pin is fixed on the elastic drop handle on elevator.It can avoid what lift-sub pin during use was ejected by the lift-sub pin
Potential safety hazard, and then reduced the potential safety hazard of lower tubular column.And if the elasticity of lift-sub pin weakened in use, work
Handle need to only be removed by making personnel, and nest, which is made as original size, again can recover elasticity, therefore the elevator pin that the utility model is provided
Son has advantage simple in construction and lower-cost.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
A kind of structural representation for lift-sub pin that Fig. 1 provides for the utility model；
A kind of left view for lift-sub pin that Fig. 2 provides for the utility model；
A kind of structural representation for elastic drop handle that Fig. 3 provides for the utility model.
Description of reference numerals：
11- shanks；
12- drop handles seat；
13- elasticity drop handles；
The side of 131- elasticity drop handles；
The base of 132- elasticity drop handles；
The safe cord hole of 14-.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Elevator is used for the well head work of directly suspension tubing string, and different tubing strings are held in different aperture choosings.By suspension tubing string
Difference, is divided into drill pipe elevator, casing elevator and pipe elevator.By the difference of Elevator structure, be divided into side open double-safety, it is split double
Safety type and locking ring type three types.When playing lower tubular column, elevator is suspended on hook block with double suspension ring, elevator again will
The tubing strings such as oil pipe, drilling rod or sleeve pipe are blocked, and just can carry out rountrip.
Suspension ring are the Special-purpose lifting apparatus that hook block and elevator are connected when making a trip tubing string.Suspension ring are used in pairs, on
End is hung on the earrings of hook both sides, and lower end is inserted in the earhole of elevator both sides respectively, for hanging elevator.Suspension ring press it
Structure type can be divided into single-arm hoisting ring and double-arm lifting-ring is separately planted.
When playing lower tubular column using elevator, lift-sub pin need to be inserted, prevents suspension ring from being ejected from elevator both sides.Lift-sub pin conduct
Unique safety device in elevator and suspension ring connection procedure, it plays vital effect during the drilling and repairing well of oil field.It is existing
Some magnetic lift-sub pins are to be adsorbed lift-sub pin on elevator body using strong magnetic, play a part of limiting suspension ring.But
During long-term use demagnetization easily occurs for magnetic lift-sub pin, and is stained with the problems such as greasy filth reduces magnetic, so as to be
Lower tubular column has buried potential safety hazard.In order to solve this technical problem, the utility model provides a kind of lift-sub pin.
A kind of structural representation for lift-sub pin that Fig. 1 provides for the utility model, Fig. 2 provided for the utility model one
The left view of lift-sub pin is planted, as depicted in figs. 1 and 2, the lift-sub pin includes：Shank 11, drop handle seat 12 and elastic drop handle 13；
The shank 11 is fixedly connected on the lower section of drop handle seat 12；The perforate of 12 both sides of drop handle seat is inserted in the openend of elastic drop handle 13 respectively
In；The elastic drop handle 13 is the elastic drop handle for being fixed on lift-sub pin on elevator.
Alternatively, the shank 11 can be welded on the underface of drop handle seat 12.Wherein in the manufacturing process of lift-sub pin：
Shank 11 can be integrally formed with drop handle seat 12.Or, the shank 11 can be fixed on drop handle seat by least one fixture
12 underface.The fixture can include screw and nut.Shank 11 passes through screw and nut close to one end of drop handle seat 12
Cooperation be fixed on drop handle seat 12 underface.
Alternatively, the structural representation for a kind of elastic drop handle that Fig. 3 provides for the utility model, as shown in figure 3, described
Before lift-sub pin use, misplaced above and below the openend of the elastic drop handle 13 of original state, and the elasticity of original state is carried
The front-back staggered of ring 13.The elastic drop handle 13 can be spring steel wire.
Alternatively, shifted to install above and below the perforate in the both sides of drop handle seat 12.
Alternatively, dislocation distance and dislocation above and below the perforate above and below the openend of the elastic drop handle 13 of original state
Apart from identical.The front-back staggered distance of the elastic drop handle 13 of original state is 60mm；And the elasticity of original state is carried
The side 131 of ring 13 and the base 132 of the elastic drop handle are in 80 degree of angles.
When elastic drop handle 13 uses φ 5mm high strength spring steel wire nest systems, the openend of the elastic drop handle 13 of original state
Misplace up and down, dislocation distance is identical with dislocation distance above and below perforate above and below the openend of the elastic drop handle 13 of original state.Initially
The front-back staggered distance of the elastic drop handle 13 of state is 60mm；And the side 131 of the elastic drop handle 13 of original state is carried with elasticity
When the base 132 of ring is in 80 degree of angles, the operation principle of lift-sub pin provided by the utility model is：When opening for spring steel wire
When mouth end is inserted in two perforates of the dislocation of drop handle seat about 12 respectively, the natural resiliency for utilizing spring steel wire front-back staggered to produce
It is stuck in original state.As shown in figure 1, when lifting spring steel wire on well head staff, due to being misplaced above and below spring steel wire, spring
Steel wire misplaces deformation under external force, stores elastic energy.When well head staff's trip spring steel wire, spring steel wire is returned at once
Position.
Specifically, the application method of above-mentioned lift-sub pin is：After a complete tubing string under well head staff, elevator is sat
On well head.Suspension ring are pushed to the opposite side of elevator, elevator are held on the other hand by one well head operator station on the other hand in elevator side
Pin elasticity drop handle both sides, and elastic drop handle is pulled open, lift-sub pin is extracted into elevator.Another well head staff presses same sample prescription
Method takes out the lift-sub pin of opposite side.
Well head staff takes out suspension ring, and suspension ring are linked into another elevator.One well head staff can on the other hand by
In the suspension ring push-in STH of elevator two, the elastic drop handle both sides of lift-sub pin are held on the other hand, shank is directed at elevator pin-and-hole.By shank
Insert after elevator pin-and-hole, well head staff can outwards pull open elastic drop handle along Fig. 1 upper lift direction, and along vertical
Direction (axial direction of shank) is downwardly into lift-sub pin, elastic drop handle is crossed the step of elevator side.Lift-sub pin is inserted
After in place, well head staff unclamps hand, and opposite direction bullet of the elastic drop handle along direction as shown in Figure 1 is stuck in and hung to shank
On the step of card side.Likewise, another well head work is by above-mentioned same method insertion opposite side lift-sub pin.At this moment well head
Staff can lift tubing string in a tubing string and well in well site and connect, and take down the elevator for being sitting in well head, and remove the root pipe
Post.
Alternatively, as shown in figure 1, above-mentioned lift-sub pin also includes：Safe cord hole 14；The safe cord hole 14 is fixedly connected on
The top of drop handle seat 12.It is alternatively possible to safe cord hole 14 is penetrated using fine iron chain, and when lift-sub pin is hung on suspension ring, peace
Full cord hole can prevent lift-sub pin to land, and reduce the potential safety hazard of lower tubular column.
To sum up, the utility model provides a kind of lift-sub pin, including：Shank, drop handle seat and elastic drop handle；The shank is fixed
It is connected to the lower section of drop handle seat；The openend of elastic drop handle is inserted in the perforate of drop handle seat both sides respectively；The elastic drop handle is use
In the elastic drop handle being fixed on lift-sub pin on elevator.Elevator pin bullet during use can be avoided by the lift-sub pin
The potential safety hazard gone out, and then reduced the potential safety hazard of lower tubular column.And if the elasticity of lift-sub pin subtracts in use
Weak, staff need to only remove handle, again nest be made as original size can recover elasticity, therefore the utility model provide hang
Bayonet lock has advantage simple in construction and lower-cost.
Finally it should be noted that：Various embodiments above is only limited to illustrate the technical solution of the utility model, rather than to it
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (7)
1. a kind of lift-sub pin, it is characterised in that including：Shank, drop handle seat and elastic drop handle；The shank is fixedly connected on institute
State the lower section of drop handle seat；The openend of the elastic drop handle is inserted in the perforate of the drop handle seat both sides respectively；The elasticity is carried
Ring is used to the lift-sub pin being fixed on elevator.
2. lift-sub pin according to claim 1, it is characterised in that shifted to install above and below the perforate in drop handle seat
Both sides.
3. lift-sub pin according to claim 2, it is characterised in that before the lift-sub pin use, original state
The elastic drop handle openend above and below misplace, and the elastic drop handle front-back staggered of original state.
4. lift-sub pin according to claim 3, it is characterised in that on the openend of the elastic drop handle of original state
Lower dislocation distance is identical with dislocation distance above and below the perforate.
5. lift-sub pin according to claim 3, it is characterised in that the front-back staggered of the elastic drop handle of original state
Distance is 60mm；And the side of the elastic drop handle of original state and the base of the elastic drop handle are in 80 degree of angles.
6. the lift-sub pin according to claim any one of 1-5, it is characterised in that the elastic drop handle is spring steel wire.
7. the lift-sub pin according to claim any one of 1-5, it is characterised in that also include：Safe cord hole；The safety
Cord hole is fixedly connected on the top of the drop handle seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720159727.3U CN206617111U (en) | 2017-02-22 | 2017-02-22 | Lift-sub pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720159727.3U CN206617111U (en) | 2017-02-22 | 2017-02-22 | Lift-sub pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206617111U true CN206617111U (en) | 2017-11-07 |
Family
ID=60231119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720159727.3U Active CN206617111U (en) | 2017-02-22 | 2017-02-22 | Lift-sub pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206617111U (en) |
-
2017
- 2017-02-22 CN CN201720159727.3U patent/CN206617111U/en active Active
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