A modular wellhead foam content detection device

Abstract

The invention provides a modular wellhead foam content detection device, which mainly includes a main body, an outer reducing joint, a first lock nut, an inner sealing gasket, tempered glass, an outer sealing gasket, an inner reducing joint, a second anti-loosening Loose nuts, laser transmitters, linear silicon photocells, fixing cylinders, explosion-proof joints and connecting pipes. The main body is used for installing large diameter reducing joints and connecting pipes; the large reducing joints are used for installing inner sealing gaskets, tempered glass, outer sealing gaskets and small reducing joints; Laser transmitter, linear silicon photocell, and explosion-proof connectors. The power supply system and signal processing system are placed outside the well site, and the foam detection device is connected to the on-site gas production pipeline to directly measure the foam content in the pipeline. The invention has a modular structure design, simple installation, quick replacement of device components, meets explosion-proof requirements, and has high foam content detection threshold and precision.

Description

technical field [0001] The invention belongs to the field of petroleum and natural gas exploitation, and in particular relates to a modularized wellhead foam content detection device. Background technique [0002] More than half of the gas fields that have been put into development in China have water gas reservoirs. After long-term development, most of the gas wells have entered the low-pressure stage of bottom production. Foam drainage, as one of the main means of drainage and gas recovery, is used in large gas fields in my country. It is very extensive and is an important measure to ensure the stable production of water-producing gas wells. The foaming agent is injected from the wellhead to the bottom of the well. Carry it to the ground so that the accumulated fluid in the wellbore can be discharged smoothly. However, if the defoaming inside the gas production pipeline is not complete, it will cause secondary foaming of the foam removal agent in the gas collection pipeline...

AI Technical Summary

Problems solved by technology

This method has serious hysteresis, and the real-time foam content in the pipeline cannot be detected. The detection accuracy is easily disturbed by human factors, and there are many factors that affect the error. It is easy to cause incomplete defoaming and waste manpower and material resources.

Images