CN209354075U - A kind of oil field operation rigidity pipe column centralizer - Google Patents
A kind of oil field operation rigidity pipe column centralizer Download PDFInfo
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- CN209354075U CN209354075U CN201821926526.2U CN201821926526U CN209354075U CN 209354075 U CN209354075 U CN 209354075U CN 201821926526 U CN201821926526 U CN 201821926526U CN 209354075 U CN209354075 U CN 209354075U
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- centralizer
- pipe column
- central tube
- oil field
- field operation
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Abstract
The utility model discloses a kind of oil field operation rigidity pipe column centralizer, including top connection and central tube, rotatable outside the central tube is socketed with above-mentioned centralizer body；Centralizer body, comprising: annular body；The circumferential direction of the annular body is evenly distributed with several righting ribs；It is fluid flow paths between the adjacent righting rib.Centralizer body can radial rotary and be rigidity, prevent unilateral abrasion centralizer, guarantee tubing string righting effect, improve the tubing string service life.Tubing string abrasion influences the problem of sealing effect and tubing string service life and righting effect difference in solution horizontal well, high angle hole operation process.
Description
Technical field
The utility model relates to the horizontal well operations underground supporting tools of oil development technical field.
Background technique
In horizontal well, high angle hole operation process, due to special casing programme, the presence of pit shaft dog-leg severity, tubing string is not
Take righting measure, it is as follows that there are problems in production process: first is that there is oil pipe abrasion and tool-packer packing element quilt of going into the well
Problem is scratched, packer sealing effect and tubing string service life are affected；Second is that although part well applies rubber or nylon formula
Centralizer, but there are problems that rubber and nylon ring aging fall off, righting effect is poor, uses the problem that validity period is short.
Utility model content
In view of this, the present invention provides a kind of oil field operation rigidity pipe column centralizers, solve horizontal well, high angle hole
Tubing string abrasion influences the problem of sealing effect and tubing string service life and righting effect difference in operation process.
A kind of oil field operation rigidity pipe column centralizer, including top connection and central tube；
Rotatable outside the central tube is socketed with above-mentioned centralizer body；
Centralizer body, comprising: annular body；The circumferential direction of the annular body is evenly distributed with several righting ribs；The adjacent righting rib
Between be fluid flow paths.
Preferably, stop collar is fixedly connected on the central tube；
The stop collar is the lower limit of the centralizer body；
The top connection is the upper limit of the centralizer body.
Preferably, the top connection is threadedly coupled with the central tube, and the two connecting end surface has sealing ring.
Preferably, the upper port of the top connection has internal screw thread, and the lower port of the central tube has external screw thread.
Preferably, the quantity of the righting rib is 7.
The utility model has the following beneficial effects:
The utility model is compared with above-mentioned current technology, the pipe column centralizer of the application, uses rotatable streamlined
Centralizer body, structure and shape are conducive to through horizontal well well section, and pipe column centralizer takes rigid material, centralizer service life
It is long, guarantee righting effect, realizes that running string is anti-sticking, keeps tubing string sealing.
Detailed description of the invention
By the description below with reference to attached drawing to the utility model embodiment, the above-mentioned and other mesh of the utility model
, feature and advantage it is apparent, in the accompanying drawings:
Fig. 1 is the structural schematic diagram of the oil field operation rigidity pipe column centralizer of the utility model embodiment；
Fig. 2 is the A-A view in Fig. 1.
Specific embodiment
The utility model is described below based on embodiment, but it is worth noting that, the utility model is simultaneously unlimited
In these embodiments.It is detailed to describe some specific detail sections below in the datail description of the utility model.So
And for the part of no detailed description, the utility model can also be understood completely in those skilled in the art.
In addition, it should be understood by one skilled in the art that provided attached drawing is simply to illustrate that the utility model
Objects, features and advantages, attached drawing are not to be actually drawn to scale.
Meanwhile unless the context clearly requires otherwise, "include", "comprise" etc. otherwise throughout the specification and claims
Similar word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, being " including but not limited to "
Meaning.
Fig. 1 is the structural schematic diagram of the oil field operation rigidity pipe column centralizer of the utility model embodiment；Fig. 2 is in Fig. 1
A-A view.As shown in connection with fig. 2 by Fig. 1: a kind of centralizer body 3, including annular body, the circumferential direction of the annular body are uniformly distributed several
Righting rib；It is fluid flow paths between adjacent righting rib.
In Fig. 1, righting rib is the low structure of intermediate high another end, and the preferably quantity of righting rib is 7.
Further, in Fig. 1, a kind of oil field operation rigidity pipe column centralizer, including top connection 1 and central tube 5, center
Centralizer body 3 has been rotatably connected outside pipe 5.
In Fig. 1, stop collar 4 is fixedly connected on central tube 5, stop collar 4 is the lower limit of centralizer body 3, and top connection 1 is to help
The upper limit of roman 3.Top connection 1 is threadedly coupled with central tube 5, and the two connecting end surface has sealing ring 2.Top connection 1 it is upper
Port has internal screw thread, and the lower port of central tube 5 has external screw thread.
Specifically, it is further described in conjunction with oil field operation rigidity pipe column centralizer of the Fig. 1-2 to the utility model:
Oil field operation rigidity pipe column centralizer top connection 1 is oil pipe female thread, connect with running string, 5 lower part of central tube
Lower contact be oil pipe pin thread, connect downhole tool, under running string arrive predetermined depth.
Go into the well the tools such as packer top connection connection oil field operation rigidity pipe column centralizer, prevent packing element during going into the well
It scratches, and keeps packer placed in the middle, guarantee sealing effect.Top connection 1 and central tube 5 rely on packing_seal, and holding tool is held
Means of press seals.
Centralizer body 3 is designed to streamline shape, has 7 righting ribs, intermediate high both ends are low, and flushing fluid and down-hole liquid can lead to
Centralizer body 3 is crossed, flow resistance is small, returns to ground from oil jacket annulus, does not influence well-flushing and dynamic liquid level test.
One end of centralizer body 3 is limited by top connection 1, and the other end of centralizer body 3 is due to stop collar 4 and central tube drilling, weldering
Fixed limit is connect, end face uses cone structure, prevents from being hampered during going into the well, convenient for by horizontal segment, centralizer body 3 can be radial
Rotation prevents unilateral abrasion centralizer, guarantees tubing string righting effect.
Embodiment described above is only to express the embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Therefore it cannot be interpreted as that a limitation on the scope of the patent of the present invention.It should be pointed out that the ordinary skill people of this field
For member, without departing from the concept of the premise utility, several deformations, same replacement can also be made, improved etc., these
Belong to the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (5)
1. a kind of oil field operation rigidity pipe column centralizer, including top connection (1) and central tube (5), it is characterised in that:
It is rotatable outside the central tube (5) to be socketed with centralizer body (3)；
Centralizer body (3), comprising: annular body；The circumferential direction of the annular body is evenly distributed with several righting ribs；The adjacent righting rib it
Between be fluid flow paths.
2. a kind of oil field operation rigidity pipe column centralizer according to claim 1, it is characterised in that:
Stop collar (4) are fixedly connected on the central tube (5)；
The stop collar (4) is the lower limit of the centralizer body (3)；
The top connection (1) is the upper limit of the centralizer body (3).
3. a kind of oil field operation rigidity pipe column centralizer according to claim 1, it is characterised in that:
The top connection (1) is threadedly coupled with the central tube (5), and the two connecting end surface has sealing ring (2).
4. a kind of oil field operation rigidity pipe column centralizer according to any one of claim 1-3, it is characterised in that:
The upper port of the top connection (1) has internal screw thread, and the lower port of the central tube (5) has external screw thread.
5. a kind of oil field operation rigidity pipe column centralizer according to claim 1, it is characterised in that:
The quantity of the righting rib is 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821926526.2U CN209354075U (en) | 2018-11-22 | 2018-11-22 | A kind of oil field operation rigidity pipe column centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821926526.2U CN209354075U (en) | 2018-11-22 | 2018-11-22 | A kind of oil field operation rigidity pipe column centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209354075U true CN209354075U (en) | 2019-09-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821926526.2U Active CN209354075U (en) | 2018-11-22 | 2018-11-22 | A kind of oil field operation rigidity pipe column centralizer |
Country Status (1)
| Country | Link |
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| CN (1) | CN209354075U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115341868A (en) * | 2022-08-23 | 2022-11-15 | 中国石油天然气集团有限公司 | Device for reducing friction resistance in slim hole coiled tubing drilling and using method thereof |
-
2018
- 2018-11-22 CN CN201821926526.2U patent/CN209354075U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115341868A (en) * | 2022-08-23 | 2022-11-15 | 中国石油天然气集团有限公司 | Device for reducing friction resistance in slim hole coiled tubing drilling and using method thereof |
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