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Paraffin removal device of oil gathering pipeline

A technology for oil collection pipelines and wax removal, which is applied in the direction of cleaning equipment, wellbore/well components, earthwork drilling and production, etc. It can solve the problems of low working efficiency of oil well pumps, reduced inner diameter of pipelines, and high back pressure of oil wells, so as to avoid production Pollution and loss, reducing wellhead back pressure, and solving the effects of wax deposition

Active Publication Date: 2014-04-02
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems in the prior art, the embodiment of the present invention provides a wax removal device for the oil collection pipeline. Technical problems of high pressure, low efficiency of oil well pump and high power consumption

Method used

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  • Paraffin removal device of oil gathering pipeline
  • Paraffin removal device of oil gathering pipeline

Examples

Experimental program
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Effect test

Embodiment 1

[0021] This embodiment provides a wax removal device for oil collection pipelines, see figure 1 , The wax removal device includes a ball throwing device 1 , a medicine box 4 , a metering pump 5 , a solenoid valve 3 and an intelligent control system 9 . Wherein, the medicine box 4 is a square barrel or a cylindrical barrel, the metering pump 5 is a high-pressure metering pump, and the installation distance between the intelligent control system 9 and the medicine box 4 and other components can be determined according to actual needs.

[0022] The medicine box 4 is connected with the metering pump 5 through the metering pump drug feeding pipe 8, and the metering pump 5 is connected with the oil pipe drug feeding pipe 2 through the solenoid valve 3. In this way, under the instruction of the metering pump 5, the liquid medicine in the medicine tank 4 is transported to the metering pump 5 through the metering pump dosing pipe 8, and then delivered to the oil pipe dosing pipe 2 thro...

Embodiment 2

[0026] This embodiment provides a wax removal device for oil collection pipelines, see figure 1 , the wax removal device includes a medicine box 4, a metering pump 5, a solenoid valve 3 and an intelligent control system 9. Wherein, the structures of the medicine box 4 , the metering pump 5 , the solenoid valve 3 and the intelligent control system 9 and the connections between them are consistent with those in the first embodiment. In addition to the above components, the wax removal device also includes a ball throwing device 1, which is arranged outside the medicine box 4, and the ball throwing device 1 communicates with the oil pipe and the medicine feeding pipe 2, and the ball throwing device 1 is connected with the intelligent control system 9 circuits. In this way, in addition to the function of dosing and melting wax, the wax removal device also has the function of mechanical wax removal by throwing balls. Preferably, the pitching device 1 is a dual-piston automatic pit...

Embodiment 3

[0028] This embodiment provides a wax removal device for oil collection pipelines, see figure 1 , the wax removal device includes a medicine box 4, a metering pump 5, a solenoid valve 3 and an intelligent control system 9. Wherein, the medicine box 4 is a square barrel or a cylindrical barrel, the metering pump 5 is a high-pressure metering pump, and the installation distance between the intelligent control system 9 and the medicine box 4 and other components can be determined according to actual needs.

[0029] The medicine box 4 is connected with the metering pump 5 through the metering pump drug feeding pipe 8, and the metering pump 5 is connected with the oil pipe drug feeding pipe 2 through the solenoid valve 3. In this way, under the instruction of the metering pump 5, the liquid medicine in the medicine tank 4 is transported to the metering pump 5 through the metering pump dosing pipe 8, and then delivered to the oil pipe dosing pipe 2 through the solenoid valve 3, and ...

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Abstract

The invention discloses a paraffin removal device of an oil gathering pipeline. The paraffin removal device comprises a ball casting device (1), a medicine box (4), a measuring pump (5), an electromagnetic valve (3) and an intelligent control system (9), wherein the medicine box (4) is connected with the measuring pump (5) through a measuring pump medicine feeding pipe (8); the measuring pump (5) is connected with an oil pipe medicine feeding pipe (2) through the electromagnetic valve (3); the ball casting device (1) is arranged outside the medicine box (4) and is communicated with the oil pipe medicine feeding pipe (2); the intelligent control system (9) is in circuit connection with the ball casting device (1), the measuring pump (5) and the electromagnetic valve (3) respectively. According to the paraffin removal device, the functions of medicine feeding paraffin melting and ball casting paraffin removal are integrated on the same equipment, the paraffin removal capacity of the oil gathering pipeline is effectively improved, return pressure at a well opening can be effectively reduced, and production pollution and loss caused by ball casting plugging of the oil gathering pipeline are avoided.

Description

technical field [0001] The invention relates to the field of oilfield wellsite processing equipment, in particular to a wax removal device for oil collection pipelines. Background technique [0002] In oil extraction engineering, crude oil generally has a large wax content. After crude oil is extracted from the ground, most of it needs to be transported through oil pipelines. When the oil is in the underground oil layer, due to the high temperature and strong pressure, the wax is fully dissolved in the crude oil. When the crude oil flows out through the oil well, due to the decrease in temperature and pressure, the wax is rapidly precipitated from the crude oil. These precipitated waxes are very It is easy to adhere to the pipe wall of the oil pipeline, block the oil pipeline, reduce the delivery capacity of the oil pipeline or even completely block the phenomenon. The crude oil produced in my country's existing oilfields is rich in wax. According to statistics, crude oil c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B37/06
Inventor 魏小林马建军杨仓海李永长穆谦益操红梅康海藩田殿龙李永清于世春程世东樊晨张彬
Owner PETROCHINA CO LTD
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