Oil well production fluid treatment system

Abstract

The invention discloses a treatment system for an oil well produced liquid. The treatment system mainly comprises an oil well pipe string, a gathering and transporting pipeline, a pressure reducing valve, a gas collecting tank, a low-pressure separator, a stop valve, a pressure transmitter, a mud and sand detector, an oil-phase sand remover, a material level switch, a material level control valve, an auxiliary pipeline, a dehydrator, an oil storage tank, a water collecting tank, a water-phase sand remover, an inclined-plate separator, a sand collecting device, a gas floatation pool, hoses, a standard sand collecting tank, a weighing system and a sewage collecting pool. When the oil well produced liquid containing oil, sand, water and gas passes through the system, sand, water and gas in the oil well produced liquid can be separated, and accordingly, pure oil is obtained for metering and sales, the obtained sand and gas are collected and treated, and clear water obtained through treatment is directly discharged outwards after meeting discharge standards. The treatment system can effectively control erosion and corrosion of the oil well produced liquid on pipelines and gathering and transporting devices, realizes efficient gathering and transporting of crude oil and is conducive to environment protection.

Description

technical field [0001] The invention relates to a device and method for processing oil well production fluid (containing sand, water and gas), belonging to the technical field of oil and gas exploitation. Background technique [0002] Oil recovery refers to the process of making the oil in the formation enter the oil well and lifting it to the ground for separation and measurement through a series of engineering and technical measures that can act on the oil reservoir. In the process of producing oil from oil wells, impurities such as gas phase, liquid water, and solid phase mud and sand are often lifted to the ground along with liquid oil. These gas and water often come from the formation, and the solid phase mud and sand in it may come from the oil and gas layer (including clay and silt), or it may be caused by the corrosion of casing and other tools. The water and gas content contained in oil well production fluid is usually not high, and the diameter of solid phase part...

AI Technical Summary

Problems solved by technology

For the water entrained in the oil well production fluid, because it will be separated eventually, if it is not separated at the wellhead, it will inevitably affect the efficiency of crude oil transportation and waste a part of the cost on water transportation

Images