孤岛油田河流相厚油层储层构型研究及应用  

Research and application of reservoir structure in thick oil layers of fluvial facies in Gudao Oilfield

作　　者：刘建民[1] 束青林[2] 张本华[2] 毛卫荣[2] 

机构地区：[1]中国石化股份胜利油田分公司开发处,山东东营257001 [2]中国石化股份胜利油田分公司孤岛采油厂,山东东营257231

出　　处：《油气地质与采收率》2007年第6期1-4,共4页Petroleum Geology and Recovery Efficiency

摘　　要：针对孤岛油田河流相厚油层油藏非均质特征，采用油藏综合分析、测井响应分析和数值模拟等方法，开展了密井网条件下以成因单元为边界的微型构造及辫状河心滩坝、曲流河点坝内部构型研究，建立了厚油层层内10m×1cm级精细三维模型，进一步深化了特高含水期厚油层剩余油研究。针对孤岛油田正韵律厚油层剩余油富集规律，提出了采用水平井挖潜。在井区综合含水率已达93．7％，采出程度高达45．3％的情况下，矿场实施23口水平井。水平井初期产油量达31．9t／d，是同期投产直井产量的3—4倍，综合含水率比同期投产直井降低了30％-50％。According to the heterogeneity characteristic in oil reservoirs with thick oil layers of fluvial facies in Gudao Oilfield, the microstruc-ture bordered as genesis units under dense well pattern and the internal structure of point bar of braided river and meandering river have been researched based on the methods of comprehensive reservoir analysis, log response analysis, numerical simulation and so on. Fined three -dimension model in 10m×1cm was established in the thick oil layers and the research about remaining oil of thick oil layers in extra-high water cut period has made much progress. Horizontal wells can be applied to improve the recovery according to the enrichment rule of the remaining oil in the thick oil layers with positive rhythm in Gudao Oilfield. Twenty-three horizontal wells were applied in the field under the condition that the composite water cut has been up to 93. 7% and the degree of reserve recovery to 45. 3% . Compared with the vertical wells at the same commissioning date, the composite water cut decreased 30% -50% ,and the oil production of horizontal wells was up to 31. 9t/d in initial period which was three to four times of that of the vertical wells.

关 键 词：河流相 厚油层 储层构型 孤岛油田 

分 类 号：TE112.221[石油与天然气工程—油气勘探]