摘要
针对辽河油区正在开发和有待开发的超稠油区块，在对国内外稠油油藏开发技术现状进行全面调研的基础上．基于Butler斜坡泄油理论，结合曙光油田曙1-25—223块的油藏特征、地质特征，运用双水平井SAGD和直井-水平井SAGD数学模型对区块进行了设计与产量预测。同时，结合蒸汽腔扩展理论解释了区块开发各个阶段产量变化规律．为预测指标的确定提供了理论依据，从而为超稠油油藏的有效开发提供了实践指导。
In the light of the eurrently being developed anti to be developed ultra-heavy oil bloc＇ks in Liaohe oil province, on the basis of comprehensive investigation of the development situation of heavy oil reservoirs at home and abroad, the development program is designed and the production rate is predicted by using mathematical models of double horizontal wells SAGI） and vertical - hori- zontal wells SAGD, based on the Butler＇s slope drainage theory, and combined with geological features anti reservoir eharacteristies of the Shul-25-223 hloek in Shuguang oilfield. Meanwhile, the variation law of production rate of the block at various stages of development is explained in view of the steam chamber expansion theory. It provides a theoretical basis for determination of the indexes predielion, and practical guidance for the effective development of nltra-heavy oil reservoirs.
关键词
蒸汽辅助重力泄油
超稠油开发
产量预测
蒸汽腔
steam-assisted gravity drainage
uhra-heavy oil development
production forecast
steam chamber
