On January 24, the reporter learned from CNOOC Tianjin Branch that China's largest offshore oil and gas field, Penglai 19-3 Oilfield, has a cumulative production of more than 45.5 billion barrels, which can meet 1The basic needs of 800 million people a year have made positive contributions to promoting the increase of reserves and production and the realization of high-quality development of Bohai Oilfield.
Penglai 19-3 oilfield is located in the south-central part of the Bohai Sea, which is one of the important positions of stable production and production in the Bohai Sea, and has great economic development value. The oilfield has long oil-bearing layers, many longitudinal small layers, prominent interlayer contradictions, and great difficulty in development, and there is a lack of experience in successful development cases around the world.
In recent years, the oilfield has continued to seek benefits from planning and management, and various disciplines such as reservoir, production, technology, drilling and completion have worked together to consolidate the "ballast stone" of basic production through fine water injection, and the natural decline rate in 2023 will decrease by 2% year-on-year; Efficiently promote the solid implementation of the preconditions for the production of new wells, take precautions to tap unplanned potential wells, and continue to replenish the resource pool of new wells; In view of the problem of declining liquid volume in Penglai Oilfield, the emulsion diversion acidification technology was innovatively tested and applied, and 25 wells were completed in on-site operations, with a total maximum daily oil increase of more than 500 cubic meters. Focusing on stabilizing the foundation, grasping new wells, and proposing measures, we have gradually explored a road for the development of offshore loose sandstone reservoirs with Penglai characteristics, and driven the production and efficiency to achieve "double improvement".
Author |Folk art.