CN211598592U

CN211598592U - Water plugging device for oil field production

Info

Publication number: CN211598592U
Application number: CN202020248480.4U
Authority: CN
Inventors: 刘平礼; 陈博文; 刘晗
Original assignee: Southwest Petroleum University
Current assignee: Southwest Petroleum University
Priority date: 2020-03-03
Filing date: 2020-03-03
Publication date: 2020-09-29
Anticipated expiration: 2030-03-03

Abstract

The utility model discloses an oil field production is with stifled water installation, including sleeve pipe, first pipeline, second pipeline, first centralizer, connecting pipe, plug, first packer, extension piece, fixed plate, shrouding, sealing strip, torsional spring, second packer, control valve, second centralizer, oil-well pump, fixed pipe and sealing washer. The utility model discloses simple structure, convenient operation, the installation of convenient water shutoff device through the design of two segmentation pipelines realizes the exploitation of oil through the connection between the pipeline, can realize accurate regulation through the control valve in the cover pipe when the oil well goes out water, can in time block up water to prevent that the oil well goes out water and leads to the condition that can't exploit; the utility model discloses a fixed pipe realizes being connected between two pipelines, when overhauing, through the maintenance that takes out the second pipeline and realize internal plant, avoids needing to take out whole equipment and causes the inconvenient problem of operation, reduces the operation degree of difficulty.

Description

Water plugging device for oil field production

Technical Field

The utility model relates to a water plugging device specifically is a water plugging device is used in oil field production belongs to oil field production application technical field.

Background

The oil field is the sum of oil and gas reservoirs in the same oil and gas production area under the control of single geological structure factor, one oil and gas field may have one or more oil and gas reservoirs, mainly is the oil field of oil deposit in the same area, mainly is the gas field of gas reservoir, according to the geological factor in the control oil and gas production area, divide into 3 types with the oil and gas field: a tectonic field, meaning that the hydrocarbon production area is controlled by a single tectonic factor, such as folds and faults; a stratigraphic field, an oil bearing area controlled by stratigraphic factors on a regional anticline or monoclinic structural background; the composite oil-gas field is not controlled by single structure or stratum factor but controlled by multiple geological factors in the oil-gas producing area.

The oil field indicates crude oil production's specific area, sometimes for the general name of the oil reservoir that specific region underground gathered, broadly be called the oil field together several oil districts, for the water shutoff device of oil field production usefulness, the oil field can appear the oil well condition of going out water in the exploitation later stage inevitably, cause the too early water logging of oil field and can't continue to exploit easily, cause the reduction of oil exploitation efficiency, and when carrying out the construction, be unfavorable for water shutoff device's transfer, need take out whole device when overhauing or maintaining, cause easily that the shutoff position takes place to become flexible, the operation degree of difficulty has been increased. Therefore, the water plugging device for the oil field production is provided aiming at the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a water plugging device for oil field production in order to solve the above-mentioned problem.

The utility model realizes the purpose through the following technical proposal, a water plugging device for oil field production, which comprises a first pipeline, a second pipeline, a sealing mechanism and a connecting mechanism which are positioned inside a sleeve;

the sealing mechanism comprises a first centralizer and a second packer, the first centralizer is fixedly connected with the end part of a first pipeline, the first pipeline is communicated with a connecting pipe, the end part of the connecting pipe is provided with a screwed plug, the surface of the first pipeline is fixedly connected with the first packer, the outer side of the top end of the first pipeline is fixedly connected with an extension block, the second packer is fixedly connected with the surface of a second pipeline, the top end of the second pipeline is provided with a control valve, the second pipeline positioned at the top of the control valve is fixedly connected with the second centralizer, and the top end of the second pipeline is communicated with the oil well pump;

coupling mechanism includes fixed plate and fixed pipe, fixed plate and the inside fixed connection of first pipeline, the fixed plate bottom rotates with the shrouding to be connected, shrouding edge rigid coupling has the sealing strip, and passes through torsional spring fixed connection between shrouding and the first pipeline inner wall, fixed pipe and second pipeline bottom fixed connection, and the inside rigid coupling of fixed pipe has the sealing washer.

Preferably, the first packer and the second packer are attached to the inner wall of the casing, a first pipeline and a second pipeline between the first packer and the second packer are sleeved with each other, and the end of the second pipeline extends into the first pipeline.

Preferably, the fixed plate is of a circular ring-shaped structure, the fixed plate is located at the top end inside the first pipeline, the bottom of the fixed plate is rotatably connected with the sealing plates of the two semicircular structures, and the sealing strips at the joints of the two sealing plates are attached to each other.

Preferably, the sealing ring is of a circular ring-shaped structure, the sealing ring is located inside the first pipeline, and the sealing ring is attached to the top surface of the fixing plate.

Preferably, the number of extension piece is two, and two extension pieces all with the inside joint of the draw-in groove that fixed socle was seted up, and the draw-in groove of fixed socle portion is L shape structure.

Preferably, the cross section of the fixed pipe is of a U-shaped structure, the inside of the fixed pipe is sleeved with the first pipeline, and the fixed pipe is located between the first packer and the second packer.

The utility model has the advantages that:

1. the utility model discloses simple structure, convenient operation, the installation of convenient water shutoff device through the design of two segmentation pipelines realizes the exploitation of oil through the connection between the pipeline, can realize accurate regulation through the control valve in the cover pipe when the oil well goes out water, can in time block up water to prevent that the oil well goes out water and leads to the condition that can't exploit;

2. the utility model discloses a fixed pipe realizes being connected between two pipelines, when overhauing, through the maintenance that takes out the second pipeline and realize internal plant, avoids needing to take out whole equipment and causes the inconvenient problem of operation, reduces the operation degree of difficulty.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic side view of the present invention;

fig. 3 is a schematic view of a part of an enlarged structure at a in fig. 1 according to the present invention.

In the figure: 1. the device comprises a sleeve, 2, a first pipeline, 3, a second pipeline, 4, a first centralizer, 5, a connecting pipe, 6, a plug, 7, a first packer, 8, an extension block, 9, a fixing plate, 10, a sealing plate, 11, a sealing strip, 12, a torsion spring, 13, a second packer, 14, a control valve, 15, a second centralizer, 16, an oil well pump, 17, a fixing pipe, 18 and a sealing ring.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-3, a water shutoff device for oil field production includes a first pipe 2, a second pipe 3, a sealing mechanism and a connecting mechanism inside a casing 1;

the sealing mechanism comprises a first centralizer 4 and a second packer 13, the first centralizer 4 is fixedly connected with the end part of a first pipeline 2, the first pipeline 2 is communicated with a connecting pipe 5, a screw plug 6 is arranged at the end part of the connecting pipe 5, a first packer 7 is fixedly connected on the surface of the first pipeline 2, an extension block 98 is fixedly connected on the outer side of the top end of the first pipeline 2, the second packer 13 is fixedly connected with the surface of a second pipeline 3, a control valve 14 is arranged at the top end of the second pipeline 3, a second centralizer 15 is fixedly connected on the second pipeline 3 at the top of the control valve 14, and the top end of the second pipeline 3 is communicated with an oil well pump 16;

coupling mechanism includes fixed plate and fixed pipe 17, fixed plate and the inside fixed connection of 2 of first pipeline, the fixed plate bottom rotates with shrouding 10 to be connected, 10 marginal rigid couplings of shrouding have sealing strip 11, and pass through torsional spring 12 fixed connection between 2 inner walls of shrouding 10 and first pipeline, fixed

pipe

17 and 3 bottom fixed connection of second pipeline, and the inside rigid coupling of fixed pipe 17 has sealing washer 18.

The first packer 7 and the second packer 13 are connected with the inner wall of the casing 1 in an attaching mode, the first pipeline 2 and the second pipeline 3 between the first packer 7 and the second packer 13 are sleeved with each other, and the end portion of the second pipeline 3 extends into the first pipeline 2; the fixing plate is of a circular structure and is positioned at the top end inside the first pipeline 2, the bottom of the fixing plate is rotatably connected with the two sealing plates 10 of the semicircular structures, and the sealing strips 11 at the joint of the two sealing plates 10 are mutually attached and connected; the sealing ring 18 is of a circular ring-shaped structure, the sealing ring 18 is positioned inside the first pipeline 2, and the sealing ring 18 is attached and connected with the top surface of the fixing plate; the number of the extension blocks 98 is two, the two extension blocks 98 are clamped with the inner part of a clamping groove formed in the bottom end of the fixed pipe 17, and the clamping groove in the bottom of the fixed pipe 17 is of an L-shaped structure; the cross section of the fixed pipe 17 is of a U-shaped structure, the inside of the fixed pipe 17 is sleeved with the first pipeline 2, and the fixed pipe 17 is positioned between the first packer 7 and the second packer 13.

When the utility model is used, firstly, the external power supply and the control switch of the electrical element in the device are placed in the oil well, the first pipeline 2 is placed in the pipeline, the first packer 7 on the outer wall of the first pipeline 2 is sealed with the sleeve 1, the first centralizer 4 realizes the centralization of the first pipeline 2, then the second pipeline 3 is placed in the sleeve 1, the end part of the second sleeve 1 is propped against the closing plate 10, after the torsional spring 12 is deformed when the closing plate 10 is pushed to rotate, the closing plate 10 is opened after the bottom of the fixed plate rotates, the connection between the first pipeline 2 and the second pipeline 3 is realized, the fixed pipe 17 at the bottom of the second pipeline 3 drives the sealing ring 18 to move, the sealing ring 18 is propped against the fixed plate, further, the sealing between the first pipeline 2 and the second pipeline 3 is realized, the connection and the installation between the first pipeline 2 and the second pipeline 3 are convenient, realize sealed between second pipeline 3 and the sleeve pipe 1 through second packer 13, second centralizer 15 plays rightting of second pipeline 3 simultaneously, the extraction of oil is realized through the work of oil-well pump 16, and the velocity of flow when retrieving oil through control valve 14 control, when needs are overhauld, take out the maintenance that second pipeline 3 realized the internal plant, when needs take out first pipeline 2, through rotating second pipeline 3, make second pipeline 3 drive fixed pipe 17 and rotate, the draw-in groove of fixed pipe 17 bottom rotates to and extends piece 98 joint, and then it is spacing to extend piece 98, take out second pipeline 3 again, take out when realizing first pipeline 2 and second pipeline 3, conveniently operate.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides an oil field production is with water shutoff device which characterized in that: the device comprises a first pipeline (2), a second pipeline (3), a sealing mechanism and a connecting mechanism, wherein the first pipeline (2) and the second pipeline (3) are positioned in a sleeve (1); the sealing mechanism comprises a first centralizer (4) and a second packer (13), the first centralizer (4) is fixedly connected with the end part of a first pipeline (2), the first pipeline (2) is communicated with a connecting pipe (5), a plug (6) is arranged at the end part of the connecting pipe (5), a first packer (7) is fixedly connected on the surface of the first pipeline (2), extension blocks (9) and (8) are fixedly connected on the outer side of the top end of the first pipeline (2), the second packer (13) is fixedly connected with the surface of a second pipeline (3), a control valve (14) is arranged at the top end of the second pipeline (3), a second centralizer (15) is fixedly connected to the second pipeline (3) at the top of the control valve (14), and the top end of the second pipeline (3) is communicated with an oil well pump (16); coupling mechanism includes fixed plate and fixed pipe (17), fixed plate and the inside fixed connection of first pipeline (2), the fixed plate bottom rotates with shrouding (10) and is connected, shrouding (10) edge rigid coupling has sealing strip (11), and passes through torsional spring (12) fixed connection between shrouding (10) and first pipeline (2) inner wall, fixed pipe (17) and second pipeline (3) bottom fixed connection, and the inside rigid coupling of fixed pipe (17) has sealing washer (18).

2. The water plugging device for the oil field production according to claim 1, wherein: first packer (7) and second packer (13) are connected with the laminating of sleeve pipe (1) inner wall, first pipeline (2) and second pipeline (3) between first packer (7) and second packer (13) cup joint each other, and inside second pipeline (3) tip extended to first pipeline (2).

3. The water plugging device for the oil field production according to claim 1, wherein: the fixed plate is the ring form structure, the fixed plate is located the inside top of first pipeline (2), the fixed plate bottom rotates with shrouding (10) of two semicircle column structures to be connected, and the sealing strip (11) of two shrouding (10) junctions are laminated each other and are connected.

4. The water plugging device for the oil field production according to claim 1, wherein: the sealing ring (18) is of a circular ring-shaped structure, the sealing ring (18) is located inside the first pipeline (2), and the sealing ring (18) is attached to the top surface of the fixing plate.

5. The water plugging device for the oil field production according to claim 1, wherein: the quantity that extends piece (9) (8) is two, and two extend piece (9) (8) all with the inside joint of draw-in groove that fixed pipe (17) bottom was seted up, and the draw-in groove of fixed pipe (17) bottom is L shape structure.

6. The water plugging device for the oil field production according to claim 1, wherein: the cross section of the fixed pipe (17) is of a U-shaped structure, the fixed pipe (17) is sleeved with the first pipeline (2), and the fixed pipe (17) is located between the first packer (7) and the second packer (13).