CN215520834U

CN215520834U - Well selecting valve

Info

Publication number: CN215520834U
Application number: CN202122021268.1U
Authority: CN
Inventors: 张秀娟; 隆赞亮; 周燕蒙; 彭军; 岳彩栋; 杜世芳
Original assignee: Shandong Dongli Electrical Co ltd
Current assignee: Shandong Dongli Electrical Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-01-14
Anticipated expiration: 2031-08-26

Abstract

The utility model relates to the field of oil well metering devices, in particular to a well selection valve, wherein a valve body comprises a base pipe, a single-well liquid inlet pipe, a metering liquid outlet pipe, a collecting liquid outlet pipe, a base, a plugging control block and a metering connecting pipe, the base pipe is of a vertically through tubular structure, the upper circumference of the base pipe is communicated with a plurality of single-well liquid inlet pipes, the lower portion of the base pipe is communicated with the metering liquid outlet pipe, the bottom of the base pipe is fixedly connected with an external delivery pipeline, a plurality of base metering flow channels are arranged on the horizontal circumference in the component base, a plurality of base liquid outlet flow channels are arranged on the vertical circumference in the component base, the plugging control block capable of limiting vertical sliding is arranged in each base liquid outlet flow channel, the plugging control block, the base metering flow channels and the base liquid outlet flow channels are matched to form a metering liquid outlet selection structure, and the well selection valve can selectively meter an oil well, the working efficiency is improved.

Description

Well selecting valve

Technical Field

The utility model relates to the field of oil well metering devices, in particular to a well selection valve.

Background

The oil well metering method is characterized in that oil wells need to be metered in oil field production, when metering is needed, a single well flow is manually switched to an oil metering flow, well liquid enters a metering separator, an exhaust valve is manually opened, the initial height, the final height and the oil metering time of the liquid level of the separator are recorded, the exhaust valve is closed, oil in the separator is discharged to a main line flow, and the oil metering work of one well is completed through calculation. However, this operation has problems:

1. the whole-course operation is carried out by one worker, the labor intensity is high, and the efficiency is low.

2. Due to the limitation of working time, the metering work can not be carried out for 8 hours.

3. Due to the limited number of the staff, the metering work of all the stations cannot be carried out simultaneously, and the working efficiency is low.

According to the situation, a technical person provides a solution, such as a numerical control multi-way valve for an oil field metering station disclosed by the application number 201320358242.9, which comprises a multi-way valve body, wherein the multi-way valve body is in control connection with an electric/manual actuator; the electric/manual actuator comprises an electric control system and an explosion-proof electric actuator controlled by the electric control system; the multi-way valve body mainly comprises a valve body, a valve cover and a valve core, wherein the valve body is provided with a plurality of oil inlets and two oil outlets, one of the two oil outlets is a gathering and conveying port of an oil collecting manifold, the other oil outlet is a metering port of a separator, an upper port of the valve core is communicated with an inlet of an oil well to be metered, and a lower port of the valve core is communicated with the metering port; the explosion-proof electric actuator is connected with the valve core in a control way; the device realizes the operation of selecting a well by aligning the valve core of the rotary multi-way valve with an oil inlet, but the device has the following defects:

1. the valve core of the multi-way valve and the oil inlet need to be completely sealed, otherwise, metering is prone to be inaccurate due to oil leakage, however, in the long-time use process, the sealing part is abraded, the sealing between the valve core of the multi-way valve and the oil inlet is lost, and the metering is inaccurate due to oil leakage.

2. The device can not measure a plurality of oil inlets simultaneously, sometimes the yield of an oil well in a certain area at the same time needs to be measured, and at the moment, a plurality of oil wells need to be measured, and the device can not realize the operation of measuring a plurality of wells together.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a well selection valve aiming at the defects in the prior art.

The technical scheme of the utility model is as follows:

a well selection valve comprises a valve body and a well selection control assembly, wherein the valve body comprises a base pipe, a single-well liquid inlet pipe, a metering liquid outlet pipe and a collecting liquid outlet pipe, the base pipe is of a vertically through tubular structure, the upper circumference of the base pipe is communicated with a plurality of single-well liquid inlet pipes, the lower part of the base pipe is communicated with the metering liquid outlet pipe, the bottom of the base pipe is fixedly connected with an external pipeline, the well selection control assembly comprises an assembly base, a plugging control block and a metering connecting pipe, a plurality of base metering flow channels are arranged on the horizontal circumference in the assembly base, the outer end of each base metering flow channel is respectively communicated with the corresponding single-well liquid inlet pipe, the inner end of each base metering flow channel is communicated with the vertical metering connecting pipe, and the metering connecting pipe is communicated with the metering liquid outlet pipe;

the assembly base is internally provided with a plurality of base liquid outlet channels along the vertical circumference, the upper part of each base liquid outlet channel is vertically intersected and communicated with the corresponding base metering channel, the lower end of each base liquid outlet channel is communicated with the collecting liquid outlet pipe, the base liquid outlet channel is internally provided with the plug control block which slides vertically in a limiting mode, and the plug control block, the base metering channels and the base liquid outlet channels are matched to form a metering liquid outlet selection structure.

Preferably, the upper portion of the assembly base is further provided with a hydraulic telescopic cylinder and a telescopic rod, the telescopic rod penetrates through the assembly base, the lower end of the telescopic rod is fixedly connected with the plugging control block, the hydraulic telescopic cylinder controls the telescopic rod to vertically move, and the hydraulic telescopic cylinder, the telescopic rod and the plugging control block form a plugging control structure.

Preferably, the plugging control block is of an inverted bullet-shaped structure, the plugging control block is made of corrosion-resistant elastic rubber, and an electric heating wire is arranged in the component base.

Preferably, the cross section of the base liquid outlet flow channel is of a gourd-shaped structure with two wide sides and a narrow middle, and a liquid outlet is formed in the position, corresponding to the plugging control block, of the bottom of the base liquid outlet flow channel.

Preferably, the top of the valve body is further provided with a PLC (programmable logic controller), and each hydraulic telescopic cylinder is electrically connected with the PLC.

Preferably, the cross section of the telescopic rod is of a fusiform structure, the long edge of the telescopic rod points to the single-well liquid inlet pipe, and the telescopic rod is made of corrosion-resistant stainless steel.

Compared with the prior art, the utility model has the following advantages:

1. the automatic well selection can be realized without manual flow guidance, and remote operation can be realized.

2. The oil metering operation is carried out by matching with a metering separator, and the unmanned operation in the whole process is realized.

3. The working time limit is broken, and well selection operation can be carried out at any time interval.

Drawings

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

in the figure: 1-valve body, 2-well selection control component;

11-single well liquid feeding pipe, 12-metering liquid outlet pipe, 13-collecting liquid outlet pipe and 14-base pipe;

21-component base, 211-base metering flow channel, 212-base liquid outlet flow channel, 22-hydraulic telescopic cylinder, 23-telescopic rod, 24-plugging control block, 25-metering connecting pipe and 26-PLC controller.

Detailed Description

In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the utility model. That is, in some embodiments of the utility model, such implementation details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

Example one

Referring to fig. 1, the well selection valve structurally comprises a multi-way valve controlled by a plurality of hydraulic telescopic bars, each passage is equivalent to a small three-way valve, the flow direction of liquid flow is controlled by a plugging control block 24, the well selection valve comprises a valve body 1 and a well selection control assembly 2, the valve body 1 comprises a base pipe 14, a single-well liquid inlet pipe 11, a metering liquid outlet pipe 12 and a collecting liquid outlet pipe 13, the base pipe 14 is of a vertically through tubular structure, the upper circumference of the base pipe 14 is communicated with the single-well liquid inlet pipes 11, the lower part of the base pipe 14 is communicated with the metering liquid outlet pipe 12, the bottom of the base pipe 14 is fixedly connected with an external pipeline, the well selection control assembly 2 comprises an assembly base 21, the plugging control block 24 and a metering connecting pipe 25, a plurality of base metering flow passages 211 are arranged on the horizontal circumference inside the assembly base 21, the outer end of each base metering flow passage 211 is respectively communicated with the corresponding single-well liquid inlet pipe 11, and the inner end of each base metering flow passage 211 is communicated with the vertical metering connecting pipe 25, the metering connecting pipe 25 communicates with the metering effluent pipe 12.

A plurality of base liquid outlet channels 212 are vertically arranged on the vertical circumference in the component base 21, the upper part of each base liquid outlet channel 212 is vertically intersected and communicated with the corresponding base metering channel 211, the lower end of each base liquid outlet channel 212 is communicated with the collecting liquid outlet pipe 13, a blocking control block 24 which is limited to vertically slide is arranged in each base liquid outlet channel 212, and the blocking control block 24, the base metering channels 211 and the base liquid outlet channels 212 are matched to form a metering liquid outlet selection structure.

The control of the plugging control block 24 is controlled by a hydraulic telescopic cylinder 22, the upper part of the assembly base 21 is also provided with the hydraulic telescopic cylinder 22 and a telescopic rod 23, the telescopic rod 23 penetrates through the assembly base 21, the lower end of the telescopic rod 23 is fixedly connected with the plugging control block 24, the hydraulic telescopic cylinder 22 controls the telescopic rod 23 to vertically move, and the hydraulic telescopic cylinder 22, the telescopic rod 23 and the plugging control block 24 form a plugging control structure.

The device can realize independent metering or regional metering of the oil well by independently controlling each small passage, thereby reducing the time cost of metering and increasing the working efficiency.

Example two

Referring to fig. 1, the difference is that the plugging control block 24 is an inverted bullet-shaped structure, and the plugging control block 24 is made of corrosion-resistant elastic rubber material, which can respectively achieve the plugging effect on the base metering flow channel 211 and the base liquid outlet flow channel 212, and the component base 21 is internally provided with an electric heating wire, which can heat the oil flow in winter, so as to avoid oil flow wax deposition to cause blockage and metering errors.

The cross section of the base liquid outlet flow passage 212 is a gourd-shaped structure with two wide sides and a narrow middle part, the gourd-shaped structure is matched with the bullet-shaped structure of the plugging control block 24 to better realize the limiting movement of the plugging control block 24 and the plugging of the base metering flow passage 211, and a liquid outlet is arranged at the bottom of the base liquid outlet flow passage 212 corresponding to the plugging control block 24.

The top of the valve body 1 is also provided with a PLC controller 26, and each hydraulic telescopic cylinder 22 is electrically connected with the PLC controller 26. The cross section of telescopic link 23 is fusiformis structure and long limit point to single well incoming liquid pipe 11, and telescopic link 23 is corrosion-resistant stainless steel material, and the positive hindrance area when the structure of fusiformis can effectual reduction liquid flow through can reduce the hindrance to the liquid flow.

The working principle is as follows:

in a standby state, the hydraulic telescopic cylinder 22 is in a contraction state, at the moment, the plugging control block 24 plugs the base metering flow passage 211, at the moment, oil flows into the base liquid outlet flow passage 212 from the single-well liquid inlet pipe 11, then enters the collecting liquid outlet pipe 13 and flows into an external delivery pipeline.

When a certain oil well or a plurality of oil wells need to be measured, the PLC 26 controls the corresponding hydraulic telescopic bars, the telescopic rods 23 move downwards, the plugging control block 24 removes plugging of the base measuring flow channel 211 and plugs the base liquid outlet flow channel 212 downwards, and at the moment, corresponding oil flows into the base measuring flow channel 211 from the single-well liquid inlet pipe 11, then enters the measuring connecting pipe 25 and flows into the measuring liquid outlet pipe 12.

The present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention, and the contents of the changes still fall within the scope of the present invention.

Claims

1. The utility model provides a well selection valve, includes valve body and well selection control assembly, the valve body includes parent tube, single well liquid pipe, measurement play liquid pipe and collects the drain pipe, the parent tube is penetrating tubular structure from top to bottom, the upper portion circumference intercommunication of parent tube has a plurality ofly single well liquid pipe, the lower part intercommunication of parent tube has the measurement drain pipe, the bottom and the defeated pipeline fixed connection outward of parent tube, its characterized in that: the well selection control component comprises a component base, a plugging control block and a metering connecting pipe, a plurality of base metering flow channels are arranged on the horizontal circumference in the component base, the outer end of each base metering flow channel is respectively communicated with the corresponding single-well liquid inlet pipe, the inner end of each base metering flow channel is communicated with the vertical metering connecting pipe, and the metering connecting pipe is communicated with the metering liquid outlet pipe;

2. A well selection valve as defined in claim 1, wherein: the upper portion of the assembly base is further provided with a hydraulic telescopic cylinder and a telescopic rod, the telescopic rod penetrates through the assembly base, the lower end of the telescopic rod is fixedly connected with the plugging control block, the hydraulic telescopic cylinder controls the telescopic rod to move vertically, and the hydraulic telescopic cylinder, the telescopic rod and the plugging control block form a plugging control structure.

3. A well selection valve as defined in claim 1, wherein: the plugging control block is of an inverted bullet-shaped structure, the plugging control block is made of corrosion-resistant elastic rubber, and an electric heating wire is arranged in the component base.

4. A well selection valve according to claim 3, wherein: the cross section of the base liquid outlet flow channel is of a gourd-shaped structure with two wide sides and a narrow middle part, and a liquid outlet is formed in the position, corresponding to the plugging control block, of the bottom of the base liquid outlet flow channel.

5. A well selection valve as defined in claim 2, wherein: the top of the valve body is also provided with a PLC controller, and each hydraulic telescopic cylinder is electrically connected with the PLC controller.

6. A well selection valve as defined in claim 2, wherein: the cross section of the telescopic rod is of a fusiform structure, the long edge of the telescopic rod points to the single-well liquid inlet pipe, and the telescopic rod is made of corrosion-resistant stainless steel.