新疆油田高含水油藏本源微生物驱矿场试验研究

The Pilot of Indigenous Microbial Flooding in a High-water-cut Reservoir in Xinjiang Oilfield

针对新疆克拉玛依油田七中区克上组油藏的地质及开发现状,有选择性的开展了两个井组的本源微生物驱矿场试验,对该油藏开展矿场试验的方案设计、实施及效果跟踪评价进行了详细介绍.矿场试验表明,本源微生物驱油技术能够激活油层中的有益菌群,抑制有害菌群,有效降低原油粘度,改善油水流度比,不仅增油效果显著,自然递减有所减缓,而且能够达到扩大水驱波及体积,提高油藏水驱控制储量,因而具有很大的发展潜力.

Two wells group of indigenous microorganism flooding pilot were performed in Xinjiang Karamay Oilfield.The evaluation of the reservoir for designing a pilot program,implementation and effect tracking were also fulfilled.The results indicates that indigenous microbial flooding technology is able to stimulate the beneficial bacteria in the reservoir,and inhibition of harmful bacteria,reduce the viscosity of crude oil,improve oil flow ratio,which not only show a significant effect of increasing oil production and retarding natural decline,but also are able to achieve expansion of the water flooding sweep volumes and improve reservoir water flooding control reserves.So it has great potential for development.