CN213392087U

CN213392087U - Water control tool for petroleum exploitation

Info

Publication number: CN213392087U
Application number: CN202022525916.2U
Authority: CN
Inventors: 罗伟
Original assignee: Nanchong Vocational and Technical College
Current assignee: Nanchong Vocational and Technical College
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-06-08
Anticipated expiration: 2030-11-05

Abstract

The utility model discloses a water control tool for oil exploitation, which comprises a central tube, a tubular air bag in a filling state is fixedly sleeved outside the central tube, the tubular air bag is sleeved with a main sealing cylinder which can expand automatically when meeting liquid, the lower end of the central tube is fixedly sleeved with a sealing disc, the upper end surface of the sealing disc is attached to the lower end surface of the main rubber sealing cylinder which self-expands when meeting liquid, two inflating valves are symmetrically arranged at the front position of the upper end surface of the tubular air bag, two tightening belts are symmetrically arranged between the main rubber sealing cylinder and the tubular air bag which are self-expanded when meeting the liquid, a tightening device matched with the two tightening belts is arranged at the upper end of the central tube, the drawing device comprises a mounting plate fixedly mounted on the side wall of the front side of the upper end of the central tube, two hinge pins are symmetrically and rotatably mounted on the mounting plate, and rope belt winding wheels and gears are sequentially fixedly sleeved at the front ends of the hinge pins. The utility model discloses can realize taking out of tubular column in the well comparatively easily, it is practical reliable.

Description

Water control tool for petroleum exploitation

Technical Field

The utility model relates to an oil development technical field especially relates to a water control instrument for oil development.

Background

The water control of the oil field is an important measure in the oil field exploitation process. The center content of the device comprises: for a new well, in order to prevent the oil well from water breakthrough early, the production liquid distribution of the production section is adjusted, and the balance condition of the production liquid profile is improved; for old wells with high water content, controlling water yield and increasing oil yield; for the water injection well, the water absorption profile is adjusted, and the water flooding wave spread coefficient is improved. The measures taken to achieve the above objectives are collectively referred to as oilfield water control. The measures taken for controlling water in the old well, namely water plugging which is often called and oil field water plugging.

The current main method for controlling water comprises the step of controlling water in an oil field by adopting a combination of a water control sieve tube and a packer (or packer) which expands when meeting liquid. In the prior art, when oil well maintenance is required, the whole pipe column is often required to be taken out, but the main sealing sleeve which is self-expanded when meeting liquid is in an expansion state, so that the main sealing sleeve has large resistance and is generally difficult to pull out.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is to solve the shortcoming that exists among the prior art, if: when oil well maintenance is needed, the whole pipe column is often required to be taken out, but the main sealing sleeve which is self-expanded when meeting liquid is in an expansion state, so that the main sealing sleeve is large in resistance and generally difficult to pull out, and the water control tool for oil exploitation is further provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an oil is opened and is adopted accuse water instrument, includes the center tube, the fixed tubulose gasbag that is in sufficient state that has cup jointed of center tube outside of tubes, tubulose gasbag overcoat is equipped with and meets liquid from the main rubber tube that seals of inflation, the fixed cup joint of lower extreme of center tube has sealed the dish, the up end of sealed dish with meet liquid from the main lower terminal surface laminating setting that seals the rubber tube that expands, the up end of tubulose gasbag leans on preceding position department symmetry to install two inflating valves, meet liquid from the main rubber tube that seals of inflation, the symmetry is provided with two tightening bands between the tubulose gasbag, the upper end of center tube is installed and is drawn the device with two tightening band assorted tightening bands.

Preferably, the tightening device comprises a mounting plate fixedly mounted on the side wall of the front side of the upper end of the central tube, two hinge pins are symmetrically and rotatably mounted on the mounting plate, the front ends of the hinge pins are sequentially fixedly connected with rope belt winding wheels and gears in a sleeved mode, the upper ends of the tightening belts are respectively and fixedly connected to the outside of the two rope belt winding wheels, and a belt rotating mechanism matched with the two gears is arranged in the middle of the mounting plate.

Preferably, two bearing seats are symmetrically installed on the installation plate, two bearings are arranged in each bearing seat, and the rear ends of the pin shafts are fixed with the inner rings of the two bearings in an interference fit mode respectively.

Preferably, the belt rotating mechanism comprises a telescopic component fixedly mounted on the mounting plate, the telescopic component is a hydraulic oil cylinder or a telescopic air cylinder, a vertical column is fixed at the output end of the telescopic component, two rack plates are mounted on the outer side of the vertical column in a bilateral symmetry mode through a connecting frame, and the two rack plates are respectively connected with two gears in a meshed mode.

Preferably, the lower ends of the two tightening belts penetrate through the sealing disc and then are fixed on the outer wall of the lower end of the central tube.

Preferably, the outer edge of the main sealing rubber barrel which self-expands when meeting the liquid is provided with grooves at intervals along the length direction, and the grooves are staggered along the circumferential direction of the main sealing rubber barrel which self-expands when meeting the liquid.

The utility model has the advantages that: when the oil well is overhauled, the tubular air bag is gradually changed into a relatively empty and shriveled state, so that the surrounding diameter of the main rubber sealing cylinder which is self-expanded when meeting liquid and is originally supported is correspondingly reduced and is not tightly attached to the well wall, and then the tubular air bag can be taken out of the well pipe column easily, and is practical and reliable.

Drawings

FIG. 1 is a schematic structural view of a water control tool for oil production according to the present invention;

FIG. 2 is an enlarged view of a portion of the structure of the present invention;

FIG. 3 is a front view of the central tube and the main rubber sealing tube which self-expands when encountering liquid;

fig. 4 is a plan view of the position relationship between the central tube, the tubular air bag and the tightening belt according to the present invention.

In the figure: the device comprises a central tube 1, a main seal rubber tube which is self-expanded when meeting liquid 2, a tubular air bag 3, a tightening belt 4, a seal disc 5, an inflating valve 6, a telescopic component 7, a vertical column 8, a rack plate 9, a gear 10, a rope belt reel 11 and a mounting plate 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships 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 being 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. 1-4, a water control tool for oil exploitation comprises a central tube 1, a tubular air bag 3 in an inflated state is fixedly sleeved outside the central tube 1, the tubular air bag 3 is made of high-quality rubber, and is similar to a manufacturing method and a process of an automobile tire, so that the tubular air bag 3 can bear a large pressure without bursting, and the support effect of the tubular air bag on an expanded liquid-encountering self-expanding main sealing rubber cylinder 2 is ensured, the liquid-encountering self-expanding main sealing rubber cylinder 2 is sleeved outside the tubular air bag 3, a sealing disc 5 is fixedly sleeved at the lower end of the central tube 1, the upper end face of the sealing disc 5 is attached to the lower end face of the liquid-encountering self-expanding main sealing rubber cylinder 2, two inflating valves 6 are symmetrically installed at positions, two tightening bands 4 are symmetrically arranged between the liquid-encountering self-expanding main sealing rubber cylinder 2 and the tubular air bag 3, the lower ends of the two tightening bands 4 are fixed on the outer wall of the lower end of, the upper end of the central tube 1 is provided with a drawing device matched with the two tightening belts 4;

the drawing device comprises a mounting plate 12 fixedly mounted on the front side wall of the upper end of a central tube 1, two pin shafts are symmetrically and rotatably mounted on the mounting plate 12, the front ends of the two pin shafts are respectively fixedly sleeved with a rope belt winding wheel 11 and a gear 10, the upper ends of two tightening belts 4 are respectively and fixedly connected outside the two rope belt winding wheels 11, the middle part of the mounting plate 12 is provided with a belt rotating mechanism matched with the two gears 10, the belt rotating mechanism comprises a telescopic part 7 fixedly mounted on the mounting plate 12, the telescopic part 7 is a hydraulic oil cylinder or a telescopic air cylinder, here, the type, control mode, circuit arrangement and the like of the telescopic part 7 are common knowledge and conventional technology of those skilled in the art, and therefore, the details are not described herein, the vertical column 8 is fixed to the output end of the telescopic part 7, two rack plates 9 are symmetrically installed on the left and right of the vertical column 8 through a connecting frame, and the two rack plates 9 are respectively engaged with two gears 10.

Two bearing seats are symmetrically installed on the mounting plate 12, bearings are arranged in the two bearing seats, and the rear ends of the two pin shafts are fixed with the inner rings of the two bearings in an interference fit mode respectively.

Meet liquid from the main gluey section of thick bamboo 2 of inflation outer edge length direction interval and be provided with the recess, and the recess along meeting the liquid from the staggered arrangement of the circumferencial direction of the main gluey section of thick bamboo 2 of inflation, such meet liquid from the main gluey section of thick bamboo 2 of inflation can expand more evenly for it seals the effect of separating better.

The utility model discloses in, when the oil well maintenance is carried out to needs, press the thimble in two inflating valves 6, the sufficient gas in the tubulose gasbag 3 can be released like this, simultaneously, drive the decline that can realize two rack boards 9 through telescopic part 7 drive upstand 8, two gears 10 can drive two fag end take turns 11 and tighten up two tightening bands 4 like this, two tightening bands 4 are pulled up and are compressed outside tubulose gasbag 3, can further accelerate the outer row of gaseous in the tubulose gasbag 3.

Finally, the tubular air bag 3 gradually becomes a relatively empty and shriveled state, so that the surrounding diameter of the main glue sealing cylinder 2 which is originally supported enough and expands when meeting liquid is correspondingly reduced and is not tightly attached to the well wall any more, and then the tubular air bag can be taken out of the well pipe column easily, and is practical and reliable.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an oil is opened and is adopted accuse water instrument, includes center tube (1), its characterized in that, center tube (1) external fixation cup joints tubular gasbag (3) that are in sufficient state, tubular gasbag (3) overcoat is equipped with and meets liquid from inflation owner and seal packing element (2), the fixed cover of lower extreme of center tube (1) has sealed dish (5), the up end of sealed dish (5) with meet liquid from inflation owner and seal the lower terminal surface laminating setting of packing element (2), the up end of tubular gasbag (3) leans on preceding position department symmetry to install two inflating valves (6), meet liquid from inflation owner and seal packing element (2), tubular gasbag (3) between the symmetry be provided with two take-up (4), the upper end of center tube (1) is installed and is drawn the device with two take-up (4) assorted receipts.

2. The oil development water control tool according to claim 1, wherein the drawing device comprises a mounting plate (12) fixedly mounted on the front side wall of the upper end of the central tube (1), the mounting plate (12) is symmetrically and rotatably mounted with two pin shafts, the front ends of the two pin shafts are respectively fixedly sleeved with a rope belt winding wheel (11) and a gear (10), the upper ends of the two tightening belts (4) are respectively and fixedly connected outside the two rope belt winding wheels (11), and the middle part of the mounting plate (12) is provided with a belt rotating mechanism matched with the two gears (10).

3. The water control tool for oil exploitation according to claim 2, wherein two bearing seats are symmetrically installed on the mounting plate (12), bearings are installed in the two bearing seats, and rear ends of the two pins are fixed to inner rings of the two bearings in an interference fit manner respectively.

4. The water control tool for oil exploitation according to claim 2, wherein the rotation driving mechanism comprises a telescopic component (7) fixedly mounted on a mounting plate (12), the telescopic component (7) is a hydraulic oil cylinder or a telescopic air cylinder, a vertical column (8) is fixed at an output end of the telescopic component (7), two rack plates (9) are bilaterally symmetrically mounted outside the vertical column (8) through a connecting frame, and the two rack plates (9) are respectively meshed with two gears (10).

5. The oil exploitation water control tool according to claim 1, wherein the lower ends of the two tightening belts (4) are fixed on the outer wall of the lower end of the central pipe (1) after penetrating through the sealing disc (5).

6. The water control tool for oil exploitation according to claim 1, wherein the main rubber sealing cylinder (2) which self-expands when encountering liquid is provided with grooves at intervals along the length direction, and the grooves are staggered along the circumferential direction of the main rubber sealing cylinder (2) which self-expands when encountering liquid.