太平油田强边底水稠油油藏剩余油赋存规律

doi:10.7657/XJPG20210207

摘要/Abstract

摘要：

太平油田新近系馆陶组下段为强边底水油藏,边底水活跃,水侵严重,储量动用不充分,采出程度低,剩余油量大,具有开发调整的潜力。根据太平油田馆陶组下段油藏开发方式和剩余油赋存规律,通过水平井变流线井间加密调整,采用大通道堵水调剖和冷采降黏开发,以达到提高采收率的目的。通过矿场水平井开发调整实施,取得了显著的增产效果,降低了稠油开发成本,形成的强边底水稠油油藏开发配套技术可供类似油藏开发参考。

关键词: 太平油田, 馆陶组, 边底水稠油油藏, 微观孔隙结构, 剩余油赋存规律, 油藏流场调整, 冷采降黏, 提高采收率

Abstract:

Reservoirs in the lower member of the Neogene Guantao formation in the Taiping oilfield have strong and active edge and bottom water, so that water invasion is severe, the reserves producing degree and the recovery percent of reserves are low and there is a large amount of remaining oil, which should be produced by adjusting the development pattern. According to the development pattern and the occurrence law of the remaining oil, infill horizontal wells were located to change the flow field, large water channels were plugged, and cold production and viscosity reduction technologies were applied to enhance the oil recovery. Finally, the oil production has been increased, and the development cost of the heavy oil has been reduced significantly. The supporting technology developed during producing the heavy oil reservoirs in the lower member of the Neogene Guantao formation in the Taiping oilfield can be a reference to developing similar heavy oil reservoirs with strong edge and bottom water.

Key words: Taiping oilfield, Guantao formation, heavy oil reservoir with edge and bottom water, microscopic pore structure, remaining oil occurrence law, flow field adjustment, cold production and viscosity reduction, enhanced oil recovery

中图分类号:

TE345

吴伟, 张博. 太平油田强边底水稠油油藏剩余油赋存规律[J]. 新疆石油地质, 2021, 42(2): 173-178.

WU Wei, ZHANG Bo. Occurrence Law of Remaining Oil in Heavy Oil Reservoirs With Strong Edge and Bottom Water in Taiping Oilfield[J]. Xinjiang Petroleum Geology, 2021, 42(2): 173-178.

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