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On August 5th, the rolling exploration and development well Moxi 031-H4 in the Anyue Gas Field of Southwest Oil and Gas Field Company obtained a daily production of 1.4266 million cubic meters of high-yield industrial gas flow in the Qixia Formation, making it the fifth high-yield gas well in the Qixia Formation gas reservoir in central Sichuan. The Permian Qixia Formation gas reservoir in Anyue Gas Field has made significant new progress in increasing single well production.

Adhere to the integration of oil testing and geological engineering, and implement cost reduction and investment control for well engineering. Optimize the completion plan and improve the effectiveness of reservoir transformation according to the concept of “initial testing+optimization transformation”. In response to the characteristics of high drilling loss in the reservoir of this well, the use of open-hole segmented tools, and the high risk of well control, the completion plan should be adjusted in a timely manner to use liner completion; On the basis of the initial instantaneous gas production reaching 1.0752 million cubic meters per day, the acidizing engineering parameters were optimized and the scale of acid usage was reduced. The acidizing process technology of 400 cubic meters of turning acid and 1000 temporary plugging knots was adopted, achieving a high production gas testing effect through small-scale acid washing.

The Qixia Formation of Moxi 031-H4 well has obtained another million cubic meters of high production industrial gas flow, demonstrating the good development potential of the Permian system in the Anyue gas field, further strengthening the confidence in the exploration and development of the Permian system in the Anyue gas field, and laying a solid foundation for optimizing the completion plan, further saving investment, and improving the development efficiency of the multi-layer system in the Anyue gas field.


Post time: Aug-09-2023