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China Petrochemical News Network News As of June 18, the intelligent bubble drainage technology independently developed by the Academy of Engineering has made phased progress.
The quantitative diagnosis model of underground fluid has been successfully softwareized, the accuracy rate of indoor simulation experiments has reached 94%, and the automatic implantation has been successful.
The control system of the dosing device has formed an intelligent bubble drainage technology of "fluid diagnosis + automatic injection" to help the long-term stable production of downhole choke wells in Dongsheng Gas Field
.
With the continuous development of the Dongsheng Gas Field, the pressure of gas wells has dropped, and the liquid carrying capacity has decreased, so it is urgent to add foam discharge agents to assist liquid discharge
.
At present, the main body of the gas field adopts downhole choke and low-pressure gas gathering technology, single wells are connected to the station in series, and the corresponding in-station dosing pipelines are not matched.
The main reliance is on wellhead manual filling and automatic dosing devices to fill bubble discharge agents
.
However, manual dosing has problems such as high construction cost, difficulty, low efficiency, and low accuracy.
In order to solve this bottleneck problem, the North China Institute of Engineering, based on the downhole choke well effusion diagnosis model and automatic filling, integrated and independently formed the "effusion diagnosis + automatic filling" intelligent bubble drainage technology
Through the integrated remote control system and fluid accumulation diagnosis software, according to the actual fluid accumulation situation of the gas well diagnosed, the wellhead intelligent dosing device is used to inject the bubble discharge agent into the tubing or oil jacket annulus of the gas well in real time, on a regular basis, and in real time.
At present, this technology has the advantages of early warning of abnormal gas wells, diagnosis of quantitative fluid accumulation, and timely and accurate dosing of medicines, which effectively assists long-term stable production of downhole choke gas wells
(Yang Yijun, Zhou Jian, Zhao Rundong)
