Southwest Oil & Gas's innovative combination process gas-preserving wells stabilize production and create benefits

Sinopec News Network reported in recent years, with the continuous advancement of oil and gas exploitation, the middle-shallow gas reservoirs in the old areas of western Sichuan have been in the low pressure and low production stage as a whole.
The gas wells generally produce water, and some gas wells with large water production and continuous water production are prone to flooding and shutting down.

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"Gas lift drainage gas recovery technology is the main economic and effective means of stabilizing production for low-pressure and low-yield gas wells, but it is helpless for some water-flooded wells with low formation energy
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It is reported that Chuanxiao 618-1, Xiaosha 5-1HF, Xin 905-1 and other low-pressure and low-yield water-flooded gas wells, due to the low formation pressure of the gas well and the large amount of fluid accumulation in the wellbore, the required gas lift starting pressure is higher than the formation pressure.
Not only does the construction fail to effectively drain the fluid out of the wellbore, but the natural gas injected by the gas lift will return the fluid pressure from the wellbore to the reservoir, which is counterproductive
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A single gas lift extraction and production measure was ineffective, and the production dropped again and again.
The technicians of the gas well tracking team were suddenly damaged.
"We continue to optimize the process technology and try to rely on the pilot test of the combined process and the joint operation plan to solve the actual problem of the gas well
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Based on the production characteristics of low-pressure and low-yield wells, they innovatively developed an integrated "self-foaming + gas lift" combined process through continuous gas well tracking, on-site sampling, and chemical injection parameter optimization
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The seemingly simple combination process technology is not easy to implement.
The dosage of medicament, medicament filling channel, gas lift start loading time, and gas lift unloading time are the "blockers" of this technology.
The technicians of the Institute of Technology did not shrink back.
, 82 trial and error between the front line and the laboratory day and night, and finally got results
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At present, the technology has been tested in 4 low-pressure and low-yield water-flooded wells or gas wells with serious liquid accumulation, including Chuanxiao 617-1 and Xiaosha 5-1HF.
The cumulative increase in natural gas production is 414,500 cubic meters, becoming a "powerful" for the stable production of low-pressure and low-yield gas wells in old areas.
Weapons"
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"In the face of the difficult'hard bone' of low pressure and low production, we have gone from exploring technologies to achieve quality and efficiency improvement, to tackling key combination process technologies to achieve stable production and efficiency.
Only
with technology can old wells in old areas continue to produce stable production; The gas field produces efficiently and steadily
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