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方法根据室内试验结果,从地层预处理、井筒降粘、管柱组合等方面入手,开展小区块稠油开采工艺技术的试验研究。目的解决常规小区块稠油开采难的问题。结果在冀中南部不同的常规稠油小区块的29口油井进行现场试验,到1997年底,累计生产稠油200167t,创经济效益10809×104元。结论解决了常规小区块稠油开采过程中,地层、井筒降粘,管柱组合及脱水的难题,为同类稠油区块的开采提供了借鉴
Methods According to the results of laboratory tests, the pilot study on heavy oil recovery technology in small blocks was carried out from the aspects of formation pretreatment, wellbore viscosity reduction and pipe string combination. Objective To solve the difficult problem of heavy oil recovery in conventional small blocks. As a result, 29 wells in different conventional heavy oil blocks in southern central Hebei Province were field tested. By the end of 1997, a total of 200,167 tons of heavy oil had been produced with a total economic benefit of 10809 × 104 yuan. Conclusion The solution to the problem of formation, wellbore viscosity reduction, pipe string combination and dewatering during the heavy oil recovery of conventional small blocks has provided a reference for the exploitation of similar heavy oil blocks.