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Recently, Zhongyuan Petroleum Engineering Co.
, Ltd.
carbon dioxide booster fracturing technology has achieved results
after its first application in the Sichuan Fulu 101 well of Sinopec Exploration Branch.
According to the relevant person in charge of Zhongyuan Petroleum Engineering Company, the project has completed a total of 13 sections of horizontal fracturing transformation, with a total of more than 1,980 cubic meters of liquid carbon dioxide into the well, and the daily output of crude oil for 22 consecutive days after the completion of fracturing exceeds 20 tons, and the cumulative output of crude oil exceeds 650 tons
.
Combined with the rapid replenishment and production requirements and clean and environmentally friendly construction requirements put forward by Party A, the company designed and formulated a specific construction plan
of "fine cutting + two temporary blocking turns + high-strength continuous sand addition" with carbon dioxide pre-energy fracturing technology as the main production increase measure.
During the construction period, they organized fracturing acidification experts and technical backbones to stay on site, which solved key technical problems such as liquid carbon dioxide sand carrying and poor filtration loss performance, liquid carbon dioxide heat absorption and freezing easy to cause equipment pipeline blockage, and the construction efficiency was significantly improved
.
"CO2 enhanced fracturing technology has a clear technical pertinence for low-pressure, tight, strong water-locked sandstone reservoirs
.
Compared with conventional hydraulic fracturing, carbon dioxide booster fracturing technology can not only better protect the reservoir, but also has 5~6 times the application effect of hydraulic fracturing, and has broad
application prospects.
Zhao Kailing, secretary of the party branch of the Zhongyuan Petroleum Engineering Fracturing and Acidification Center, said
.
"Through this well, Party A hopes to further explore the production potential and applicable fracturing process of the high-content condensate reservoir in this area, and we also hope to successfully unveil the mysterious 'veil' of the target oil and gas reservoir, so as to obtain more crude oil volume
.
" Yu Yang, chief engineer of Zhongyuan Petroleum Engineering, said
.
