CN209339890U - A kind of casing cutting element - Google Patents
A kind of casing cutting element Download PDFInfo
- Publication number
- CN209339890U CN209339890U CN201821866936.2U CN201821866936U CN209339890U CN 209339890 U CN209339890 U CN 209339890U CN 201821866936 U CN201821866936 U CN 201821866936U CN 209339890 U CN209339890 U CN 209339890U
- Authority
- CN
- China
- Prior art keywords
- wing
- tool body
- cutting element
- centralizer
- casing cutting
- 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.)
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Abstract
The utility model provides a kind of casing cutting element, including upper connector, tool body, wing, centralizer wing and lower connector, the top of tool body is wholely set upper connector, the bottom end of tool body is wholely set lower connector, wing is welded on outer wall of the tool body close to upper connector, angle between wing and the axis of tool body is 1-6 °, centralizer wing is welded on the outer wall of lower connector in tool body, wing and centralizer wing are in inverted V type.The utility model is integral type, and wing and centralizer wing are welded on tool body, and the processing is simple, easy to maintenance；The shape of milling alloy components is octagon, can effectively reduce iron filings shape size；Wing and tool body axial angle at 1-6 °, meanwhile, wing and centralizer wing form inverted V type, are conducive to return bits；It is versatile, wide adaptability.
Description
Technical field
The utility model relates to oil field development production technical fields, more specifically to a kind of casing cutting element.
Background technique
By vicennial exploration and development, Bohai Bay Oil overwhelming majority block has all entered the middle and later periods, and adjustment well is exploitation
Remaining oil hides one of effective means；But platform slot limited amount bores adjustment well without extra notch, therefore proposes using low
It imitates well and old well carries out the scheme of window sidetracking.
Field overhaul operation process, it is main using process 13-3/8 " casing, 9-5/8 " such as cutting, set milling and millings
" casing, purpose are that subsequent window sidetracking prepares pit shaft to casing and 7；But during field operation, discovery Bohai Bay Oil casing is not occupied
Middle phenomenon is extremely serious, covers miller skill low efficiency, drilling depth is zero sometimes；Milling operation, which exists, returns bits difficulty and milling low efficiency
Problem.
Utility model content
The utility model overcomes deficiency in the prior art, and Bohai Bay Oil casing phenomenon not placed in the middle is serious, covers miller skill
Low efficiency, milling operation, which there are problems that returning, considers difficult and milling low efficiency to be worth doing, a kind of casing cutting element is provided, to solve to grind
The problem of milling in operation process, returning difficult bits and milling low efficiency, improves milling efficiency, shortens duty cycle, to reach drop
The purpose of this synergy.
The purpose of this utility model is achieved by following technical proposals.
A kind of casing cutting element, including upper connector, tool body, wing, centralizer wing and lower connector, the tool
The top of ontology is wholely set the upper connector, and the bottom end of the tool body is wholely set the lower connector, described
Tool body welds the wing on the outer wall of the upper connector, between the wing and the axis of the tool body
Angle be 1-6 °, weld the centralizer wing on the outer wall of the lower connector in the tool body, the wing with
The centralizer wing is in inverted V type.
Angle between the wing and the axis of the tool body is 2-5 °.
The milling alloy components for milling casing are welded on the surface of the side of the wing, the milling alloy components
Shape is in eight-sided formation.
The shape of the wing is in class pentagonal configuration.
The alloying pellet layer for improving centralizer wing wearability, the alloying pellet are welded on the surface of the centralizer wing
Layer be diamondite stratum granulosum, the alloying pellet layer with a thickness of 4-6mm.
The inner via hole through the tool body is offered on the tool body.
The upper connector is using female thread or other existing different button-types.
The lower connector is using pin thread or other existing different button-types.
The utility model has the following beneficial effects: the utility model is integral type, wing and centralizer wing are welded on tool body
On, the processing is simple, easy to maintenance；The shape of milling alloy components is octagon, can effectively reduce iron filings shape size；Wing with
Tool body axial angle at 1-6 °, meanwhile, wing and centralizer wing form inverted V type, are conducive to return bits；It is versatile, adaptability
Extensively.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is A-A schematic cross-sectional view；
Fig. 3 is B-B schematic cross-sectional view；
In figure: 1 is upper connector, and 2 be tool body, and 3 be wing, and 4 be centralizer wing, and 5 be inner via hole, and 6 be lower connector,
7 be milling alloy components, and 8 be weld seam, and 9 be alloying pellet layer.
It for those of ordinary skill in the art, without creative efforts, can be according to above attached
Figure obtains other relevant drawings.
Specific embodiment
The technical solution of the utility model is further described below by specific embodiment.
Embodiment one
A kind of casing cutting element, including upper connector 1, tool body 2, wing 3, centralizer wing 4 and lower connector 6, work
The top of tool ontology 2 is wholely set upper connector 1, and the bottom end of tool body 2 is wholely set lower connector 6, and upper connector 1 uses
Female thread or other existing different button-types, lower connector 6 is using pin thread or other existing different button-types, upper connector and lower company
Fitting welds wing 3, wing in tool body 2 for being attached with other workover tools on the outer wall of upper connector 1
Angle between 3 and the axis of tool body 2 is 1-6 °, welds centralizer wing on the outer wall of lower connector 6 in tool body 2
4, wing 3 and centralizer wing 4 are in inverted V type.
In field overhaul operation process, when casing is not placed in the middle, there is the problems such as returning difficult bits and milling low efficiency, casing
Cutting element replaces milling with cutting, improves operating efficiency；Wing 3 and centralizer wing 4 form inverted V type, when drilling fluid and iron filings
When into active section, area of passage becomes smaller, and drilling well flow velocity increases, and inverted V type is inside and outside to generate pressure difference, so that landwaste and iron filings quilt
It is adsorbed in inverted V type slot, under high revolving speed turning effort, landwaste and iron filings are pulled by drilling fluid and return out well head, to greatly improve
Bits efficiency is returned, entire duty cycle is greatly shortened, to achieve the purpose that cost efficiency.
Embodiment two
On the basis of example 1, the milling alloy components for milling casing are welded on the surface of the side of wing 3
7, the shape of milling alloy components 7 is in eight-sided formation, in order to reduce iron filings size, the shape of wing 3 is in class pentagon
Structure, in order to reduce the intensity of wing 3.
Embodiment three
On the basis of example 2, the alloy for improving 4 wearability of centralizer wing is welded on the surface of centralizer wing 4
Granulosa 9, alloying pellet layer 9 be diamondite stratum granulosum, alloying pellet layer 9 with a thickness of 4-6mm.
Example IV
On the basis of embodiment three, the inner via hole 5 through tool body 2 is offered on tool body 2.
The spatially relative terms such as "upper", "lower", "left", "right" have been used in embodiment for ease of explanation, have been used for
Relationship of the elements or features relative to another elements or features shown in explanatory diagram.It should be understood that in addition to figure
Shown in except orientation, spatial terminology is intended to include the different direction of device in use or operation.For example, if in figure
Device be squeezed, the element for being stated as being located at other elements or feature "lower" will be located into other elements or feature "upper".
Therefore, exemplary term "lower" may include both upper and lower orientation.Device, which can be positioned in other ways, (to be rotated by 90 ° or position
In other orientation), it can be interpreted accordingly used herein of the opposite explanation in space.
Moreover, the relational terms of such as " first " and " second " or the like are used merely to one with another with identical
The component of title distinguishes, without necessarily requiring or implying between these components there are any this actual relationship or
Sequentially.
The utility model is described in detail above, but the content is only the preferred embodiment of the utility model,
It should not be considered as limiting the scope of the present invention.Equivalent change made according to the scope of application of this utility model with
Improve etc., it should still belong within the patent covering scope of the utility model.
Claims (8)
1. a kind of casing cutting element, it is characterised in that: including upper connector, tool body, wing, centralizer wing and lower connection
Part, the top of the tool body are wholely set the upper connector, and the bottom end of the tool body is wholely set the lower company
Fitting welds the wing, the wing and the tool sheet in the tool body on the outer wall of the upper connector
Angle between the axis of body is 1-6 °, welds the righting on the outer wall of the lower connector in the tool body
The wing, the wing and the centralizer wing are in inverted V type.
2. a kind of casing cutting element according to claim 1, it is characterised in that: the wing and the tool body
Angle between axis is 2-5 °.
3. a kind of casing cutting element according to claim 1, it is characterised in that: welded on the surface of the side of the wing
The milling alloy components for milling casing are connected to, the shape of the milling alloy components is in eight-sided formation.
4. a kind of casing cutting element according to claim 3, it is characterised in that: the shape of the wing is in class pentagon
Structure.
5. a kind of casing cutting element according to claim 1, it is characterised in that: be welded on the surface of the centralizer wing
For improving the alloying pellet layer of centralizer wing wearability, the alloying pellet layer is diamondite stratum granulosum, the alloy
Granulosa with a thickness of 4-6mm.
6. a kind of casing cutting element according to claim 1, it is characterised in that: offer and pass through on the tool body
Wear the inner via hole of the tool body.
7. a kind of casing cutting element according to claim 1, it is characterised in that: the upper connector is using female thread or now
The different button-types having.
8. a kind of casing cutting element according to claim 1, it is characterised in that: the lower connector is using pin thread or now
The different button-types having.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821866936.2U CN209339890U (en) | 2018-11-14 | 2018-11-14 | A kind of casing cutting element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821866936.2U CN209339890U (en) | 2018-11-14 | 2018-11-14 | A kind of casing cutting element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209339890U true CN209339890U (en) | 2019-09-03 |
Family
ID=67748139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821866936.2U Active CN209339890U (en) | 2018-11-14 | 2018-11-14 | A kind of casing cutting element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209339890U (en) |
-
2018
- 2018-11-14 CN CN201821866936.2U patent/CN209339890U/en active Active
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