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陆相储层非均质性及其对油藏采收率的影响--以冀东高尚堡和胜利永安镇油藏为例
尹志军 鲁国永 邹翔 杨志鹏
摘 要:储层非均质性主要包括层间非均质性、层内非均质性和平面非均质性.通过冀东和胜利等油藏开发研究表明,层间非均质性导致注水开发中主力小层的单层突进、主力层过早水淹、非主力层油气动用程度低和驱油效率低;层内非均质性控制和影响单砂层内注入剂波及体积,直接决定水驱效率,是影响层内剩余油分布的关键因素;平面非均质性直接影响到注入水波及面积和波及效率,从而控制剩余油在平面上的分布.为此采用了细分开发层系、分层注水、开展流动单元精细研究等地质和开发措施,可以有效地降低各类非均质性对油藏最终采收率的影响.
关键词:非均质性;采收率;陆相储层;剩余油;驱油效率
分类号:TE112.22 文献标识码:A
文章编号:0253-9985(2006)01-0106-05
Heterogeneity of non-marine reservoirs and its influences on recovery factor: take Gaoshangpu and Yonganzhen oil reservoirs in Jidong and shengli oilfields as examples
Yin Zhijun Lu Guoyong Zou Xiang Yang Zhipeng
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基金项目:国家自然科学基金重点项目(40238059)
作者简介:尹志军(1971-),男,讲师、博士,开发地质
作者单位:尹志军(中国石油大学,提高采收率研究中心,北京,102249)
鲁国永(中国石油,大港油田,钻井三公司,天津,300280)
邹翔(中国石化,胜利油田,胜采地质研究所,山东,东营,257000)
杨志鹏(中国石油,冀东油田分公司,河北,唐山,063004)
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