Innovative expert in oilfield wastewater treatment

Recently, Yang Mingzhi, head of the sewage post in the eighth operation area of ​​the third oil production plant of Daqing Oilfield, was on the stage of the third season of Daqing Oilfield's "Innovation, Benefit, Action, and Show"
.
His innovative achievements have contributed to reducing the work intensity of employees and improving corporate efficiency

Good effect of mobile recycling of waste liquid

At present, most sewage treatment stations in the oilfield have open-air sewage tanks.
These sewage tanks not only receive the sewage discharged from the various containers of the station through the mud discharge process, but also receive and store well washing water, main line flushing water, and operation recovery water according to production needs.
Waste liquid, these waste liquids contain a lot of oil
.

According to Yang Mingzhi, there is no sewage oil recovery device in the sewage tank.
As the waste liquid continues to enter, the sewage oil collects more and more in the upper part of the sewage tank and cannot be recycled in time and effectively.
The only way to clean up the sewage is by dredging
.
This wastes resources and increases production costs, as well as safety and environmental protection issues

In response to this problem, Yang Mingzhi installed a slop oil recovery device on the basis of the conventional water recovery process of the sewage tank, which not only avoided the waste of resources and reduced environmental pollution, but also helped to improve the quality of the recovered sewage
.
In addition, after installing a simple mobile device on the device, the dirty oil recovery can be flexibly implemented according to production needs, and it has the characteristics of easy operation and convenient maintenance

"The manufacturing cost of the device is about 3,000 yuan.
It has been installed at the 2801-containing sewage treatment station in the North Second Third Gathering and Transportation Group 2801 in the eighth operation area in 2015.
It has been in normal use for nearly 6 years and can directly create economic benefits of about 587 thousand yuan per year
.
In addition, the recovery of sewage oil also reduces the cost of dredging the sewage tank, which helps companies reduce costs and increase efficiency.

Intelligent frequency conversion dosing reduces costs

The sewage station in the oil field will do quantitative chemical dosing of the incoming liquid every day.
Due to the process and technology of the existing dosing method, the daily dosing amount is based on the treatment volume of the previous day or the average daily treatment of a month.
The outlet adjustment valve of the dosing pump is manually controlled manually for one-time adjustment control
.

This method has certain drawbacks
.
Since the incoming liquid volume of the upstream station often fluctuates and changes, and the outlet control valve of the dosing pump cannot track and control in real time, the dosing amount cannot be adjusted reasonably

In response to this problem, Yang Mingzhi invented an intelligent frequency conversion dosing adjustment device, which can use a flowmeter to measure the amount of upstream liquid in real time.
By adjusting the output frequency of the frequency converter, control the speed of the dosing pump motor to achieve the purpose of reasonable adjustment of the dosing amount.

.

　　After the device is installed in 5 sewage stations, the dosage can be adjusted automatically according to the changes in the treatment volume, which realizes automatic dosage and saves about 1 million yuan in costs each year
.

　　Fast bearing cutting to increase efficiency

　　Electric motors are widely used in oil fields, and replacing motor bearings is an important task for motor maintenance
.
Because the motor runs fast and the temperature is high, the bearing is easy to lock up with the shaft, so gas welding and cutting are required when replacing it

　　To solve this problem, Yang Mingzhi made a quick cutter for bearing
.
The tool is composed of a cordless angle grinder, an adjustable shaft card, a horizontal adjustment mechanism, a longitudinal adjustment mechanism, and a frame

　　The device has a good field application effect and can improve work efficiency.