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单家寺油田稠油油藏位于东营凹陷和滨县凸起之间的过渡带上,原油为特、超稠油。该油田自1984年进行蒸汽吞吐试验以来,经历了蒸汽吞吐试验、东区建设投产、厚层块状稠油油藏井网调整和薄层层状稠油油藏投入开发、蒸汽驱试验、初期综合治理五个开发阶段。目前总体上处于高轮次、高含水、低油汽比的开发阶段。为了解决目前超稠油开发中原油粘度高、注汽质量差、开采周期短、驱油效率低等问题,研制了新型蒸汽增效剂SEPA。
The heavy oil reservoir of Shanjiasu Oilfield is located on the transition zone between Dongying Sag and Binxian Protuberance. Crude oil is special and super heavy oil. Since its steam huff and puff test in 1984, the field has undergone steam huff-and-puff test, eastern district construction and commissioning, adjustment of heavy block-shaped heavy oil reservoir well and development of thin-layer heavy-oil reservoirs, steam flooding test and initial synthesis Governance five development stages. Currently in the high round, high water, low oil-steam ratio of the development stage. In order to solve the problems of high crude oil viscosity, poor steam injection quality, short exploitation cycle and low oil displacement efficiency in the development of super heavy oil, a new steam enhancement agent SEPA was developed.