CN220929348U - Layer-by-layer deblocking water injection packer - Google Patents
Layer-by-layer deblocking water injection packer Download PDFInfo
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- CN220929348U CN220929348U CN202322826412.8U CN202322826412U CN220929348U CN 220929348 U CN220929348 U CN 220929348U CN 202322826412 U CN202322826412 U CN 202322826412U CN 220929348 U CN220929348 U CN 220929348U
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- layer
- central tube
- outer central
- water injection
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 238000002347 injection Methods 0.000 title claims abstract description 25
- 239000007924 injection Substances 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 238000000926 separation method Methods 0.000 claims abstract description 6
- 239000012530 fluid Substances 0.000 claims 1
- 238000004873 anchoring Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 238000011089 mechanical engineering Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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- Branch Pipes, Bends, And The Like (AREA)
Abstract
The utility model is suitable for the technical field of mechanical engineering, and provides a layer-by-layer deblocking water injection packer, which comprises an outer central pipe and all levels of water distributors arranged in the outer central pipe, wherein a sealing assembly is connected between every two adjacent water distributors through the outer central pipe; the sealing assembly comprises two cylinder seats sleeved on the outer side of the outer central tube, a plurality of annular rubber cylinders are arranged between the two cylinder seats, a separation ring is arranged between the two adjacent rubber cylinders, the sealing assembly is arranged between every two adjacent water distributors, the annular separation ring is matched, the stability and the reliability of the water distributors can be guaranteed when the water distributors are unsealed, meanwhile, when the inner central tube is lifted up, the plurality of packers can be unsealed step by step from top to bottom, the oil layer between the water distributors is separated, the water injection effect is guaranteed, accordingly, different clamping strength requirements can be met, the sealing, anchoring and unsealing are facilitated, and the purpose of double anchoring in the upper direction and the lower direction can be achieved.
Description
Technical Field
The utility model belongs to the technical field of mechanical engineering, and particularly relates to a layer-by-layer deblocking water injection packer.
Background
At present, separate-layer water injection construction operation is carried out in the domestic oilfield exploitation process, and separate-layer water injection is needed because each section of stratum has different strength parameters, and a packer is a tool for sealing different strata; under the condition of the multi-stage water injection packer under the water injection well, the lifting pipe column is not easy to unseal due to the fact that the lifting load is too large, the casing is deformed and the casing is misplaced, and therefore a step-by-step unsealing packer needs to be developed to overcome the problems.
Disclosure of utility model
The utility model provides a layer-by-layer deblocking water injection packer, and aims to solve the problem that under the condition of a multi-stage water injection packer under a water injection well, a lifting string is not easy to deblock due to overlarge lifting load caused by deformation of a sleeve and wrong sections of the sleeve.
The utility model is realized in such a way that the layer-by-layer deblocking water injection packer comprises an outer central pipe, wherein the inner part of the outer central pipe is a cavity; the upper joint is arranged at the top end of the outer central tube and is connected with the inner thread of the outer central tube; the lower joint is arranged at the bottom end of the outer central tube and is in threaded connection with the inner thread of the outer central tube; each stage of water distributors are arranged in the outer central tube, and a sealing assembly is connected between every two adjacent water distributors through the outer central tube; wherein, the seal assembly includes: two cylinder seats sleeved on the outer side of the outer central tube, and a cylinder groove is formed between the two cylinder seats; the annular rubber barrels are arranged between the two barrel grooves, and an annular separation ring is arranged between every two adjacent rubber barrels.
Preferably, an upper slip assembly and a lower slip assembly are respectively arranged at the upper position and the lower position of the outer central tube, a groove is formed in the outer side wall of the outer central tube, and extension blocks opposite to the two grooves are respectively arranged on the upper slip assembly and the lower slip assembly.
Preferably, the outer diameter of the extension block is matched with the inner diameter of the groove.
Preferably, the device further comprises an inner central tube, the outer central tube is sleeved outside the inner central tube, and a liquid channel communicated with the outer central tube and the inner central tube is arranged between the outer central tube and the inner central tube.
Preferably, the water distributor is any one of a bridge type eccentric water distributor or a bridge type concentric water distributor.
Compared with the prior art, the embodiment of the application has the following main beneficial effects:
Through setting up seal assembly between every two adjacent water distributors, can guarantee the leakproofness between every two adjacent water distributors, the cooperation annular separating ring can guarantee the stability and the reliability of water distributors when deblocking, simultaneously when lifting the inner tube, a plurality of packing parts can be from last to deblocking step by step down, separate the oil reservoir between the water distributors, guarantee the water injection effect to can satisfy different card seal intensity demands, be convenient for seat seal, anchoring, deblocking, and can realize the purpose of upper and lower two-way dual anchoring.
Drawings
FIG. 1 is a front view of the present utility model;
FIG. 2 is a schematic elevational view of the present utility model;
FIG. 3 is a top view of the present utility model;
FIG. 4 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;
In the figure: 1. an outer center tube; 2. an upper joint; 3. a lower joint; 4. a water distributor; 601. a cylinder seat; 602. a rubber cylinder; 603. a spacer ring; 7. a groove; 8. an extension block; 9. an inner central tube.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The embodiment of the utility model provides a layer-by-layer deblocking water injection packer, which is shown in figures 1-4 and comprises an outer central tube 1, wherein the inner part of the outer central tube 1 is a cavity; the upper joint 2 is arranged at the top end of the outer central tube 1, and the upper joint 2 is connected with the inner thread of the outer central tube 1; the lower joint 3 is arranged at the bottom end of the outer central tube 1, and the lower joint 3 is connected with the inner thread of the outer central tube 1; each level of water distributors 4 are arranged in the outer central tube 1, and a sealing assembly is connected between every two adjacent water distributors 4 through the outer central tube 1; the sealing assembly comprises two cylinder seats 601 sleeved on the outer side of the outer central tube 1, and a cylinder groove is formed between the two cylinder seats 601; a plurality of annular rubber barrels 602 arranged between the two barrel grooves, and an annular separation ring 603 is arranged between every two adjacent rubber barrels 602.
It should be noted that, because under the condition of the existing water injection underground multistage water injection packer 5, the sleeve with overlarge lifting load deforms and the sleeve is staggered, and the problem that each stage of packer with overlarge lifting pipe column load is not easy to unseal is also solved, the sealing component is arranged between every two adjacent water distributors 4, so that the sealing property between every two adjacent water distributors 4 can be ensured, the stability and the reliability of the water distributors 4 during unsealing can be ensured by matching with the annular separating ring 603, meanwhile, when the inner central pipe 9 is lifted up, the oil layer between the water distributors 4 can be unsealed step by step from top to bottom, the water injection effect is ensured, thereby meeting the requirements of different sealing strength, being convenient for seat sealing, anchoring and unsealing, and realizing the purpose of double anchoring in the upper direction and the lower direction.
Specifically, in this embodiment, the present solution mainly includes an outer central tube 1, an upper joint 2, and a lower joint 3, where the lower joint 3 is connected with the inner thread of the outer central tube 1; each level of water distributors 4 are arranged in the outer central tube 1, and a sealing assembly is connected between every two adjacent water distributors 4 through the outer central tube 1; the seal assembly includes: two cylinder seats 601 sleeved on the outer side of the outer central tube 1, and a cylinder groove is formed between the two cylinder seats 601; the annular separating rings 603 are arranged between every two adjacent rubber cylinders 602, the upper joint 2 and the lower joint 3 are respectively screwed on the outer central pipes 1 at the two ends, other accessories such as ball valves and the like are added at required places, finally, the assembled manifold assembly is carefully checked, the tightness and the integrity of the manifold assembly are ensured, the sealing assembly can ensure the tightness between every two adjacent water distributors 4, the annular separating rings 603 are matched, the stability and the reliability of the water distributors 4 during deblocking can be ensured, and the corresponding sealing components are deblocked along with the continuous lifting of the water distributors 4 in each stage in the process of lifting the inner central pipe 9.
In a further preferred embodiment of the present utility model, as shown in fig. 2-4, an upper slip assembly and a lower slip assembly are respectively disposed at the upper portion and the lower portion of the outer central tube 1, a groove 7 is formed on the outer side wall of the outer central tube 1, and extension blocks 8 opposite to the two grooves 7 are respectively disposed on the upper slip assembly and the lower slip assembly.
In this embodiment, through setting up upper slip subassembly and lower slip subassembly respectively in upper portion and lower part, can ensure that outer center tube 1 subassembly still keeps stable when bearing big axial force, the design of recess 7 makes upper slip subassembly and lower slip subassembly can put into smoothly, has certain intensity and rigidity simultaneously to the sealing performance of whole manifold subassembly has been improved.
In a further preferred embodiment of the present utility model, as shown in fig. 1-4, the present utility model further comprises an inner central tube 9, the outer central tube 1 is sleeved outside the inner central tube 9, and a liquid channel communicated between the outer central tube 1 and the inner central tube 9 is provided.
In this embodiment, the liquid channels can distribute the liquid evenly to the individual water distributors 4, ensuring the balance of the water injection effect.
In a further preferred embodiment of the present utility model, as shown in fig. 2-4, the water distributor 4 is either a bridge type eccentric water distributor 4 or a bridge type concentric water distributor 4.
In the embodiment, the bridge type eccentric water distributor 4 can also provide a certain buffer effect, so that the damage of impact force generated in the oil extraction process to an oil layer is avoided; the bridge concentric water distributor 4 has the advantages of simple structure and easy maintenance and replacement.
Working principle: the upper joint 2 and the lower joint 3 are respectively screwed on the outer central pipe 1 at two ends, other accessories such as ball valves and the like are added at required places, finally, the assembled manifold assembly is carefully checked, the tightness and the integrity of the manifold assembly are ensured, then the operation is carried out, the sealing assembly can ensure the tightness between every two adjacent water distributors 4, the annular separation ring 603 is matched, the stability and the reliability of the water distributors 4 during the deblocking can be ensured, and the corresponding sealing components 5 are deblocked along with the continuous lifting of the water distributors 4 at each stage in the process of lifting the inner central pipe 9;
When the inner central pipe 9 is lifted up, the sealing and separating part can be used for deblocking step by step from top to bottom, so that an oil layer between the water distributors 4 is separated, and the water injection effect is ensured, thereby meeting the requirements of different clamping strength, facilitating seat sealing, anchoring and deblocking, and realizing the purpose of double anchoring in the upper direction and the lower direction;
through setting up slip subassembly and lower slip subassembly respectively in upper portion and lower part, can ensure that outer center tube 1 subassembly still keeps stable when bearing big axial force, the design of recess 7 makes slip subassembly and lower slip subassembly can put into smoothly, has certain intensity and rigidity simultaneously to the sealing performance of whole manifold subassembly has been improved.
It should be noted that, for simplicity of description, the foregoing embodiments are all illustrated as a series of acts, but it should be understood by those skilled in the art that the present utility model is not limited by the order of acts, as some steps may be performed in other order or concurrently in accordance with the present utility model. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present utility model.
In the several embodiments provided by the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, and such partitioning of the above-described elements may be implemented in other manners, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or communication connection shown or discussed as being between each other may be an indirect coupling or communication connection between devices or elements via some interfaces, which may be in the form of telecommunications or otherwise.
The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model. It will be apparent that the described embodiments are merely some, but not all, embodiments of the utility model. Based on these embodiments, all other embodiments that may be obtained by one of ordinary skill in the art without inventive effort are within the scope of the utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art may still combine, add or delete features of the embodiments of the present utility model or make other adjustments according to circumstances without any conflict, so as to obtain different technical solutions without substantially departing from the spirit of the present utility model, which also falls within the scope of the present utility model.
Claims (5)
1. A layer-by-layer unpacking water injection packer, comprising:
the inner part of the outer central tube is a cavity;
The upper joint is arranged at the top end of the outer central tube and is connected with the inner thread of the outer central tube; and
The lower joint is arranged at the bottom end of the outer central tube and is connected with the inner thread of the outer central tube; and
Each stage of water distributors arranged in the outer central tube are connected with a sealing assembly through the outer central tube between every two adjacent water distributors;
wherein, the seal assembly includes:
Two cylinder seats sleeved on the outer side of the outer central tube, and a cylinder groove is formed between the two cylinder seats;
The annular rubber barrels are arranged between the two barrel grooves, and an annular separation ring is arranged between every two adjacent rubber barrels.
2. The layer-by-layer deblocking water injection packer of claim 1, wherein an upper slip assembly and a lower slip assembly are respectively disposed at an upper position and a lower position of the outer center tube, grooves are formed in an outer side wall of the outer center tube, and extension blocks opposite to the two grooves are respectively disposed on the upper slip assembly and the lower slip assembly.
3. The layer-by-layer unsetting water injection packer of claim 2, wherein an outer diameter dimension of the extension block is adapted to an inner diameter dimension of the recess.
4. The layer-by-layer deblocking water injection packer of claim 1, further comprising an inner center tube, wherein the outer center tube is sleeved outside the inner center tube, and wherein a fluid passage is provided between the outer center tube and the inner center tube.
5. The layer-by-layer unsetting water injection packer of claim 1, wherein the water distributor is any one of a bridge type eccentric water distributor or a bridge type concentric water distributor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322826412.8U CN220929348U (en) | 2023-10-20 | 2023-10-20 | Layer-by-layer deblocking water injection packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322826412.8U CN220929348U (en) | 2023-10-20 | 2023-10-20 | Layer-by-layer deblocking water injection packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220929348U true CN220929348U (en) | 2024-05-10 |
Family
ID=90969896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322826412.8U Active CN220929348U (en) | 2023-10-20 | 2023-10-20 | Layer-by-layer deblocking water injection packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220929348U (en) |
-
2023
- 2023-10-20 CN CN202322826412.8U patent/CN220929348U/en active Active
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