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Sinopec News Network News As of July 14, the North China Oil and Gas Branch has made phased progress in the intelligent filling and bubble drainage technology test of the JPH-431 fluid well JPH-431 in the Dongsheng Gas Field, reducing on-site labor intensity by 97.
1% and increasing production by 1,300 cubic meters per day.
/Day, the cumulative production increased by 29,000 cubic meters, helping the downhole choke well gas wells in the Dongsheng Gas Field to stabilize and increase production
.
The average monthly decline rate of JPH-431 well from July 2020 to May 2021 is> 5%.
The technicians use the downhole choke well qualitative fluid accumulation diagnosis method to judge that there is fluid accumulation at the bottom of the well
.
Because the main body of Dongsheng Gas Field adopts downhole choke low-pressure gas gathering technology, single wells are connected in series, and the corresponding in-station dosing pipeline is not matched.
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, and the accuracy rate of the effusion diagnosis Up to 94%
Bubble discharge intelligent filling technology, that is, through the integrated remote control system and effusion diagnosis software, according to the actual fluid accumulation situation of the gas well diagnosed, the wellhead intelligent dosing device is used to inject the foam discharge agent in timed, quantitative, and real-time precision all-weather In the annulus of the oil pipe or oil sleeve of the gas well, the purpose of foam drainage and gas recovery is achieved
At present, the well has increased production by 1,300 cubic meters per day after the implementation of the intelligent injection bubble drainage technology test, and the cumulative production has increased by 29,000 cubic meters.
(Yang Yijun, Zhou Jian, Zhao Rundong)
