CN214616489U

CN214616489U - Sand-blocking-prevention reverse plate anchor matched with oil field sand discharge cold production

Info

Publication number: CN214616489U
Application number: CN202120642684.0U
Authority: CN
Inventors: 桂钦民
Original assignee: BEIJING DONGSHENG CENTURY TECHNOLOGY CO LTD
Current assignee: BEIJING DONGSHENG CENTURY TECHNOLOGY CO LTD
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-11-05
Anticipated expiration: 2031-03-30

Abstract

The utility model belongs to the technical field of oil development equipment, especially, relate to a be used for supporting anti-sand card reverse plate anchor of oil field sand discharging cold production. The utility model discloses a sand prevention card reverse plate anchor, which comprises a reverse plate anchor body, an anchor sheet and a spring, wherein the upper end part of the body is processed with an upper joint, and the lower end part of the body is processed with a lower joint; the middle part of the body is processed into an eccentric structure; the anchor sheet is trapezoidal, the bottom edge of the trapezoidal anchor sheet is relatively fixed with the outer wall of the plane side of the body through an anchor sheet fixing bolt, and the top edge of the trapezoidal anchor sheet is supported away from the body through a spring. The utility model discloses reverse plate anchor, oil reservoir lower part can be gone into down to screw pump sunction inlet wherein, is not afraid of because of the sand deposit, and the anchor sand buries and can not go out the tubular column to but furthest's release production pressure differential makes viscous crude and the non-cemented sand of oil reservoir produce ground together. Utilize the utility model discloses a sand control card reverse plate anchor, the work progress is simple, can solve and go into the oil reservoir lower part under the screw pump sunction inlet, is not afraid of because of the sand deposit, plays no exit tube post problem.

Description

Sand-blocking-prevention reverse plate anchor matched with oil field sand discharge cold production

Technical Field

The utility model belongs to the technical field of oil development equipment, especially, relate to a be used for supporting anti-sand card reverse plate anchor of oil field sand discharging cold production.

Background

The oil layer is too shallow (the buried depth is less than or equal to 500 m), the formation temperature is low, the dissolved gas is low, and most of the oil layer forms thick oil which is difficult to develop. The conventional method is adopted to produce oil basically, but the steam huff and puff method (injecting high-temperature steam to improve the oil temperature of a reservoir so that thick oil becomes thin and can flow to a shaft and be extracted) has more supporting equipment, high cost (the production cost reaches more than 4600 yuan/ton) and unreasonable input-output ratio. This problem has plagued shallow heavy oil development, and a large number of shallow heavy oil blocks are under development.

If the oil layer is cemented and loosened, the oil-gas ratio is more than or equal to 10m³/m³The oil-water layer spacing is more than one hundred meters, and the sand-discharging cold-production process can be adopted without side water, so that the oil well yield is improved, and the exploitation cost is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem related in the background art, provide a be used for the cold anti-sand card reverse plate anchor who adopts supporting of oil field sand discharging, make viscous crude and the non-cemented sand of oil reservoir adopt ground together, reach the increase of production purpose by a wide margin.

The novel sand blocking prevention reverse plate anchor matched with the oil field sand discharge cold production comprises a reverse plate anchor body, an anchor sheet and a spring, wherein an upper joint is processed at the upper end part of the body, and a lower joint is processed at the lower end part of the body; the middle part of the body is processed into an eccentric structure; the anchor sheet is trapezoidal, the bottom edge of the trapezoidal anchor sheet is relatively fixed with the outer wall of the plane side of the body through an anchor sheet fixing bolt, and the top edge of the trapezoidal anchor sheet is supported away from the body through a spring.

The utility model provides a be used for supporting anti-sand card reverse plate anchor of oil field sand discharging cold production, its advantage:

the utility model discloses a be used for supporting anti-sand card anti-plate anchor of cold recovery of oil field sand discharge, with its installation screw pump lower part, through the screw pump sunction inlet, go into the oil reservoir lower part down, though the anti-plate anchor ware is buried to sand, nevertheless can play the oil pipe tubular column to but furthest's release production pressure differential makes viscous crude and the non-cemented sand of oil reservoir adopt ground together, has consequently improved oil field output by a wide margin. Utilize the utility model discloses a sand control card reverse plate anchor, the work progress is simple, can solve and go into the oil reservoir lower part under the screw pump sunction inlet, is not afraid of because of the sand deposit, plays no exit tube post problem.

Drawings

Fig. 1 is the utility model provides a be used for the supporting structure sketch map of sand control card reversal board anchor of oil field sand discharging cold production.

Fig. 2 is a using state diagram of the sand prevention clamp reverse plate anchor of the utility model.

Fig. 3 is the working principle diagram of the sand prevention clamp reverse plate anchor of the utility model.

In the figures 1-3, 1 is a sand-proof reverse plate anchor, 1.1 is an upper joint, 1.2 is a main body, 1.3 is an anchor sheet fixing bolt, 1.4 is an anchor sheet, 1.5 is a spring, 1.6 is a lower joint, 2 is a sand stirring device, 3 is a screw pump stator, 4 is a tubing string, 5 is a high-sand-carrying screw pump rotor, 6 is a sucker rod string, 7 is a wellhead, 8 is a casing, 9 is a tubing valve, and 10 is a screw pump ground driving device.

Detailed Description

The utility model provides a supporting anti-sand card reverse plate anchor for oil field sand discharging cold production, its structure is shown as figure 1, reverse plate anchor body 1.2, anchor sheet 1.4 and spring 1.5 are constituteed, the upper end processing of body 1.2 has upper joint 1.1, the lower tip processing of body 1.2 has lower joint 1.6; the middle part of the body 1.2 is processed into an eccentric structure; the anchor sheet 1.4 is trapezoidal, the bottom edge of the trapezoidal anchor sheet 1.4 is relatively fixed with the outer wall of the body 1.2 through an anchor sheet fixing bolt 1.3, and the top edge of the trapezoidal anchor sheet 1.4 is supported away from the body 1.2 through a spring 1.5.

The utility model provides a sand prevention card reverse plate anchor for oil field sand discharging cold production matching, the using state is as shown in figure 2, firstly, the sand prevention card reverse plate anchor 1 is put into the lower part of the oil layer perforation section for 1-1.5 m, the upper part is connected with the sand stirring device 2 by an oil pipe buckle; the upper part of the sand stirring device 2 is connected with a screw pump stator 3 which is high in sand carrying capacity by an oil pipe buckle; the high sand-carrying screw pump stator 3 is connected with the tubing string 4 by a tubing buckle, and the tubing string 4 is connected with the wellhead 7 by a flange; a high-sand-carrying screw pump rotor 5 is connected with an oil rod column 6 for an oil rod, and a cross head at the lower part of the high-sand-carrying screw pump rotor is connected with a sand stirring blade shaft of the sand stirring device 2; the sucker rod string 6 is slip connected to a surface drive 10 through the wellhead 7.

The utility model discloses the theory of operation of the anti-board anchor of sand control card is as follows:

when the anti-sand-blocking anchor is in a well, the outer diameter of the anti-sand-blocking anchor 1 is larger than the inner diameter of the sleeve 8, the anchor sheet 1.4 contracts under the compression of the spring 1.5, but the anchor sheet 1.4 is always in contact with the sleeve 8, and the anti-sand-blocking anchor can be smoothly put into a specified shaft position. When the anti-plate anchor works, the high-sand-carrying screw pump fixed character 5 applies clockwise torque to the anti-plate anchor 1, the eccentric main body 1.2 is tightly attached to one side of the inner side of the sleeve 8, and the anchor sheet 1.4 is tightly attached to one side of the inner side of the sleeve 8 in the 180-degree direction to form anticlockwise torque, so that the high-sand-carrying screw pump fixed character 5 can work without rotating. When the anchor sheet 1.4 is lifted out, the anchor sheet 1.4 has a larger gap with the eccentric main body 1.2, and the anchor sheet 1.4 is shorter and is in line contact with one side of the inner side of the sleeve 8, so the anchor sheet is well lifted out and is not afraid of sand burying.

Claims

1. A sand prevention blocking reverse plate anchor matched with an oil field sand discharge cold production is characterized in that the sand prevention blocking reverse plate anchor consists of a reverse plate anchor body, an anchor sheet and a spring, an upper joint is processed at the upper end part of the body, and a lower joint is processed at the lower end part of the body; the middle part of the body is processed into an eccentric structure; the anchor sheet is trapezoidal, the bottom edge of the trapezoidal anchor sheet is relatively fixed with the outer wall of the plane side of the body through an anchor sheet fixing bolt, and the top edge of the trapezoidal anchor sheet is supported away from the body through a spring.