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As of August 29, PetroChina Changqing Oilfield's old oilfield repeated transformation technology demonstration zone - Longdong Huaqing ultra-low permeability reservoir transformation development mode industrialization test has been implemented a total of 116 wells, the daily oil increase level exceeded 328 tons, the cumulative oil increase reached 112,000 tons
Changqing Oilfield's ultra-low permeability reservoir has a high proportion of utilized reserves and a large contribution to production capacity, which is a ballast stone
At the same time, in the industrialization test of Changqing Oilfield, in view of the problems of poor physical properties of horizontal wells, high water content, short length of horizontal sections, and complex wellbore conditions, etc.