Since the introduction of submersible electric pump technology in China since 1981 has been nearly 20 years of history, in the past 20 years, Tianjin submersible electric pump as an important mechanical oil recovery equipment has been widely used in oil fields. According to statistics, China has nearly 3700 electric submersible pump into the mouth, only for Daqing oilfield, there are nearly 1700, accounting for 10% of the mechanical oil production well, fluid production accounted for the total liquid yield of 30%, has become one of the important means for oil yield and stability.
First, the advantages of submersible electric pump
1 large displacement fluid is the main advantage of this method. However, at present, Tianjin submersible electric pump is often used in the production of relatively low oil wells.
2) this pump can make the water injection well is located in the upper layer water injection to the lower part of the water.
3 easy installation of downhole pressure and temperature test device, and through the cable to test the signal transmitted to the ground, the measurement of reading.
4, in order to adapt to the decline of oil production or change, the frequency conversion device can be used to adjust the frequency of power supply, but the cost is higher.
5, easy to operate, easy to manage, in the urban areas have been applied to beautify the environment, reduce noise.
6) can be used in inclined wells, horizontal wells and offshore oil production.
7 easy installation of downhole pressure and temperature test device, and through the cable to test the signal transmitted to the ground, the measurement of reading.
Two, submersible electric pump shortcomings
1. The depth of the submersible electric pump in Tianjin is limited by the rated power of the motor, the casing size and the depth of the submersible electric pump under the high temperature of the bottom hole are limited. Large high power equipment does not have sufficient annular space cooling motor, will shorten the service life of the motor.
2, because of the high power and high power, the initial investment is relatively high, especially the high cost of cable. If you need to engage in corrosion or high temperature, the cost will be higher.
3, because the whole device is installed in the underground, once the fault occurs, the need for all the pipe repair, resulting in increased operating costs and production time is too long.
4 submersible electric pump manufacturer downhole high temperature easy to cable failure, high temperature, corrosion and wear may cause motor damage. High gas oil ratio will make the lift failure, but also because of the gas lock pump failure.
5) power source is only suitable for power supply.
More about the electric submersible pump manufacturer, an electric submersible pump price information please visit Tianjin Jing Haosheng Machinery Company Limited (http://www.jhsesp.com/) official website to view!