Electric wellhead pressure pulse signal generating device and oil exploitation equipment

Abstract

The invention discloses an electric wellhead pressure pulse signal generating device which comprises a valve block and a motor installed on the valve block, a core cavity is formed in the valve block, a valve core is installed in the core cavity, a high-pressure inlet and a pressure relief outlet which are communicated with the working end of the core cavity are formed in the valve block, and the high-pressure inlet is communicated with a wellhead. The motor is connected with the valve element through a transmission mechanism, and the transmission mechanism can convert rotary motion of the motor into linear motion. A motor is fast in response, meanwhile, a mechanical transmission mechanism is safer and more reliable, leakage risks are avoided, therefore, generated pressure pulse signals are high in quality, good in stability and high in reliability, meanwhile, a control part and a working part are separated, most components in the device are separated from corrosive media in a well, the service life is prolonged, and cost is reduced. And the device is low in cost, reduces the labor intensity of workers and is suitable for popularization. The invention further discloses oil exploitation equipment comprising the device.

Description

technical field [0001] The invention relates to the field of petroleum exploitation, in particular to an electric wellhead pressure pulse signal generating device. In addition, the present invention also relates to an oil extraction equipment comprising the above-mentioned device. Background technique [0002] At present, in oil extraction equipment, water injection wells are needed. For the water distribution method of water injection wells, purely mechanical water distributors are mainly used. According to the water injection needs, water nozzles of different specifications are used to control the water distribution. The operation is complicated, the process is many, and the consumption However, using the intelligent water distribution method, that is, installing an intelligent water distributor underground, controlling the work of the underground water distributor through signals on the ground, and adjusting the water distribution, greatly shortens the construction time a...

AI Technical Summary

Problems solved by technology

Pressure pulse transmission is the most widely used and mature method. In the intelligent water distribution method, most of the ground devices that generate pressure pulse signals use high-pressure pump boosting. The specific method is to use the high-pressure water output by the ground high-pressure pump as The pressure source, by manually operating the pressure source and the valve on the wellhead device, generates a corresponding pressure pulse signal and transmits it to the downhole water distribution tool. The disadvantage of this method is that the high-pressure pump equipment is used, which leads to high cost, and the manual operation takes a long time. , the labor intensity of the workers is high, the boosting stability of the high-pressure pump is poor, and manual operation results in the poor quality of the pressure pulse signal, low reliability, and low signal frequency. Poor, affecting the generation of pressure pulses, and unable to receive the pressure signal uploaded by the downhole water distribution tool

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