Automatic dosing device of mechanical wellhead of sucker rod pump pumping well

Abstract

The invention relates to an automatic dosing device of a mechanical wellhead of a sucker rod pump pumping well. The automatic dosing device is characterized by comprising an agent storage pot (1) and an agent adding pump (5), wherein the agent storage pot (1) is connected with the agent adding pump (5) through a hose (11); the agent storage pot (1) comprises a pot body, a liquid guide pipe (4) connected with the hose (11) is arranged in the pot body, and a liquid drainage faucet (13) is arranged at the lower part of the pot body; the dosing pump (5) comprises a barrel body, and a plunger (6) is arranged in the barrel body; a spring (9) is arranged below the plunger (6), and a plunger handle (10) is arranged above the plunger (6); the hose (11) is communicated with the barrel body through a first check valve (7) with only liquid entering and without liquid draining in the dosing pump (5), and the lower part of the barrel body is communicated with a second check valve (8) with only liquid draining and without liquid entering. The dosing pump realizes liquid absorption and liquid drainage through the vertical movement of the plunger, and the flexile application of oilfield sites is met.

Description

technical field [0001] The invention relates to a mechanical wellhead automatic dosing device for pumping oil wells with rods. Background technique [0002] In oil well wellbore corrosion and scaling prevention measures, the traditional artificial wellhead dosing is difficult to ensure the continuous addition of chemicals. The existing electric pump continuous dosing device needs to be operated by an external current, and there is a certain resource consumption. There are also some simple devices that freely drop drugs by gravity, which are difficult to meet the flexible application of the oilfield site. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a mechanical wellhead automatic dosing device for rod pumped oil wells, so as to overcome the defects in the prior art. [0004] The technical solution of the present invention is: A mechanical wellhead automatic dosing device for rod pumped oil wells, charac...

AI Technical Summary

Problems solved by technology

[0002] In oil well wellbore corrosion and scaling prevention measures, traditional artificial wellhead dosing is difficult to ensure the continuous addition of chemicals

The existing electric pump continuous dosing device needs to be operated by an external current, which has a certain resource loss

There are also some simple devices that freely drop drugs by gravity, which are difficult to meet the flexible application of the oilfield site

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