- 责任者：Zhu Lihong (Institute of Geology and Geophysics ; Chinese Academy of Sciences ; Beijing 100029 ; China)
- 刊名：Petroleum Geology & Oilfield Development in Daqing
- 出版年：2013
- 卷期：32(6)
- 关键词：剩余油 ; remaining oil ; 油藏描述 ; oil reservoir description
- 页码：p.58-62
- 图表：2 illus., 5 tables, 23 refs.
- 分类号：1003
- issnNo：ISSN1000-3754
- isbnNo：CN23-1286/TQ
Meandering channel sandbody is one of the main fluvial sandbodies in the thick oil reservoirs in Lasax- ing Oilfields, and its geological reserve is more than 50% of the total channel sands, which is the major potential- tapping target for water control at the period of extra-high water cut. The results of all kinds of studies show that the remained oil within the sandbodies is mainly located in the thick reservoirs, and moreover distributed ahernativly with the waterflooded intervals. As to the problems such as the complexity of the remained oil distribution, difficul- ties of the oil description and so on, the controlling actions of the sedimentary mierofaeieses { such as the planar a- bandoned channels, interchannel mud and so on } , lateral accretion, rhythm combinations and so forth of the sand- bodies over the distribution of the remained oil are researched with the help of the comprehensive well-by-well and layer-by-layer analyses of a great amount of currently drilled sealed core data from the inspecting wells and furthermore the methods of the numerical and physical simulations etc.. On the basis of the above, the patterns of the re- mained oil distribution for the planar, interlayered and micro-scale sandbodies at the period of extra-high water cut are established, and moreover through horizontal wells, finely adjustment within the reservoirs etc. , the potentials of the oil are tapped and much better results are obtained.