Intelligent layered measuring and adjusting water dispenser

Abstract

The utility model relates to an intelligent layered measurement and control water distributor which comprises a sleeve and an inner pipe, the inner pipe is arranged in the sleeve, interlayers are arranged between the sleeve and the inner pipe, a water injection cavity is formed between the interlayers, a piston is arranged in the water injection cavity and comprises an inner-layer plug and an outer-layer plug, the inner-layer plug is tightly attached to the inner pipe, and the outer-layer plug is tightly attached to the inner pipe. The outer-layer plug is tightly attached to the sleeve; according to the intelligent layered measurement and control water distributor, the opening amount of the first water injection ring hole and the opening amount of the second water injection ring hole can be adjusted by controlling the position of the piston, and then the water injection amount is controlled.

Description

Technical Field

[0001] The utility model belongs to the technical field of water distributors, in particular to an intelligent stratified measuring and adjusting water distributor. Background Art

[0002] Water injection is one of the most effective methods for oilfields to supplement formation energy and improve recovery. In order to effectively solve the differences between layers and within layers, oilfields use stratified water injection technology to achieve balanced injection and production development. Although the commonly used stratified water distributors can realize the stratified water injection process, they have problems such as complex construction, difficult measurement and adjustment, and poor stratified water injection effect.

[0003] During the stratified water injection process of traditional water distributors, if the water injection volume of a single layer is changed, professional personnel, vehicles and equipment are needed to change the specifications of the water nozzles by casting or docking. The process is complicated, the cost is high and the construction success rate is low. For special environments such as swamps, beaches, inclined wells, and horizontal wells, the measurement and adjustment work is seriously affected by the environment and it is difficult to control the water injection volume. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the following technical problems in the prior art: it is difficult to adjust the water injection volume of the water injection layer in the prior art.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: an intelligent stratified measuring and adjusting water distributor, comprising a sleeve and an inner tube, the inner tube being placed in the sleeve, and also comprising a partition between the sleeve and the inner tube, a water injection cavity being formed between the partitions, a piston being arranged in the water injection cavity, the piston comprising an inner plug and an outer plug, the inner plug being arranged close to the inner tube, and the outer plug being arranged close to the sleeve.

[0007] As a preferred technical solution for an intelligent stratified measuring and adjusting water distributor, a first water injection ring hole is provided on the casing, and the first water injection ring hole is arranged along the circumferential direction of the casing.

[0008] As a preferred technical solution for an intelligent stratified measuring and adjusting water distributor, a second water injection ring hole is provided on the inner tube, and the second water injection ring hole is arranged along the circumferential direction of the inner tube.

[0009] As a preferred technical solution for an intelligent stratified measuring and adjusting water distributor, the first water injection ring hole and the second water injection ring hole partially overlap.

[0010] As a preferred technical solution for an intelligent stratified measuring and adjusting water distributor, the first water injection ring holes are a plurality of first circular holes arranged along the circumferential direction of the casing.

[0011] As a preferred technical solution for an intelligent stratified measuring and adjusting water distributor, the second water injection ring holes are a plurality of second circular holes arranged along the circumferential direction of the inner tube.

[0012] As a preferred technical solution for an intelligent stratified measuring and adjusting water distributor, a vertically arranged partition plate is also provided in the water injection chamber.

[0013] Beneficial effects of the utility model: the intelligent stratified measuring and adjusting water distributor of the utility model can adjust the opening amount of the first water injection ring hole and the second water injection ring hole by controlling the piston position, thereby controlling the water injection amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0015] Figure 1 It is a schematic diagram of the vertical cross-section structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the first water injection ring hole and the second water injection ring hole in the utility model;

[0017] Figure 3 This is a structural schematic diagram of the utility model in which the water injection ring hole is a circular hole.

[0018] Reference numerals: partition 101 , piston 103 , inner plug 103 b , outer plug 103 a , sleeve 100 , inner tube 200 , first water injection annular hole 104 , first circular hole 104 a , second water injection annular hole 201 , second circular hole 201 a , water injection cavity 102 , partition plate 105 . DETAILED DESCRIPTION

[0019] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0022] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0023] Example 1

[0024] Reference Figure 1~Figure 3 The present embodiment provides an intelligent stratified measuring and adjusting water distributor, including a casing 100 and an inner tube 200, wherein the inner tube 200 is placed in the casing 100, and further includes a partition 101 arranged between the casing 100 and the inner tube 200, a water injection cavity 102 is formed between the partitions 101, a piston 103 is arranged in the water injection cavity 102, and the piston 103 includes an inner plug 103b and an outer plug 103a, wherein the inner plug 103b is arranged close to the inner tube 200, and the outer plug 103a is arranged close to the casing 100.

[0025] In this embodiment, water is transported from the inner pipe 200, passes through all injection layers, and supplies water to all injection layers. Each injection layer is isolated by a packer. The piston 103 is arranged in the injection chamber 102 to seal and adjust the water flow. The inner plug 103b is close to the inner pipe 200 to seal the injection holes on the inner pipe 200, and the outer plug 103a is close to the casing 100 to seal the injection holes on the casing 100.

[0026] The barrier 101 may be a packer.

[0027] The casing 100 is provided with a first water injection annular hole 104 , and the first water injection annular hole 104 is arranged along the circumferential direction of the casing 100 .

[0028] Furthermore, a water injection pipe is covered on the outer side of the first water injection ring hole 104 for guiding the water flow and collecting the water flow coming out of the first water injection ring hole 104 .

[0029] The inner tube 200 is provided with a second water injection annular hole 201 , and the second water injection annular hole 201 is arranged along the circumferential direction of the inner tube 200 .

[0030] The second water injection ring hole 201 injects water into the water injection chamber 102, and the water injection chamber 102 is configured as a transfer chamber.

[0031] It should be noted that connecting plates are provided at both ends or in the middle of the piston 103 to connect the inner plug 103b and the outer plug 103a, and the above-mentioned transfer chamber is formed between the partition plate 105 and the connecting plate.

[0032] The first water injection annular hole 104 and the second water injection annular hole 201 partially overlap.

[0033] The first water injection ring hole 104 and the second water injection ring hole 201 are arranged alternately and partially overlap, so Figure 3 As shown, when the piston 103 moves clockwise, the second water injection ring hole 201 is partially opened, and when it moves to the point where the first water injection ring hole 104 is partially opened, the transfer chamber is already filled with water, and water is injected outward through the first water injection ring hole 104 in a small water flow, and when the opened portion of the first water injection ring hole 104 becomes larger, the opening of the second water injection ring hole 201 also becomes larger synchronously.

[0034] Example 2

[0035] The difference between this embodiment and the previous embodiment is that the first water injection annular holes 104 are a plurality of first circular holes 104a arranged along the circumferential direction of the casing 100; the second water injection annular holes 201 are a plurality of second circular holes 201a arranged along the circumferential direction of the inner tube 200.

[0036] In this embodiment, the continuous annular hole structure is replaced by a circular hole structure evenly arranged in the circumferential direction, which is convenient for control and adjustment.

[0037] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An intelligent stratified water measuring and adjusting distributor, comprising a casing (100) and an inner tube (200), wherein the inner tube (200) is placed in the casing (100), characterized in that: It also includes that a partition (101) is arranged between the sleeve (100) and the inner tube (200), a water injection chamber (102) is formed between the partitions (101), a piston (103) is arranged in the water injection chamber (102), and the piston (103) includes an inner plug (103b) and an outer plug (103a), the inner plug (103b) is arranged closely against the inner tube (200), and the outer plug (103a) is arranged closely against the sleeve (100).

2. The intelligent stratified water measuring and adjusting device according to claim 1 is characterized in that: The casing (100) is provided with a first water injection annular hole (104), and the first water injection annular hole (104) is arranged along the circumferential direction of the casing (100).

3. The intelligent stratified water measuring and adjusting distributor according to claim 2 is characterized in that: The inner tube (200) is provided with a second water injection annular hole (201), and the second water injection annular hole (201) is arranged along the circumferential direction of the inner tube (200).

4. The intelligent stratified water measuring and adjusting distributor according to claim 3 is characterized by: The first water injection ring hole (104) and the second water injection ring hole (201) partially overlap.

5. The intelligent stratified water measuring and adjusting distributor according to claim 4 is characterized in that: The first water injection annular holes (104) are a plurality of first circular holes (104a) arranged along the circumferential direction of the casing (100).

6. The intelligent stratified water measuring and adjusting distributor according to claim 5 is characterized in that: The second water injection annular holes (201) are a plurality of second circular holes (201a) arranged along the circumferential direction of the inner tube (200).

7. The intelligent stratified water measuring and adjusting device according to any one of claims 4 to 6, characterized in that: A vertically arranged partition plate (105) is also provided in the water injection chamber (102).

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