高含水期油藏优势流场识别与调整研究
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OIL &GAS EXPLORATION AND DEVELOPMENT 收稿日期:2017-06-01
基金项目:国家科技重大专项 优势渗流通道识别与表征及控制无效循环技术 (2016ZX 0501003-003)作者简介:张志超(1987-),男,黑龙江安达人,硕士研究生,主要从事油气田开发调整研究三
高含水期油藏优势流场识别与调整研究
张志超1 柏明星1 黄延忠21.东北石油大学石油工程学院, 黑龙江 大庆 163318;2.大庆油田有限责任公司第一采油厂地质大队, 黑龙江 大庆 163118
摘 要:准确识别油水井间的优势流场,确定存在于优势流场中的油水井对,对于高含水期油藏制定有针对性的控水增油调整措施十分必要三以大庆油田某高含水期区块为研究对象,采用油水井相关性判断优势流场方法结合储层沉积微相分析及流管法数值模拟技术,在综合分析研究区块不同日注水量区间的注水井的样本概率及对全区流量的贡献大小的基础上,得到了不同级别的流场界限,确定了存在于优势流场中的油水井对三且根据流场分布情况,对存在于优势流场中油水井进行相应的精细调整措施,调整后全区综合含水由96．7%下降到95．1%,日增油量稳定在43．5t,调整效果明显三关键词:油水井相关性;优势流场分级;沉积相;流管图;精细调整
DOI:10．3969/j.issn.1006-5539．2017．05．010
Advantaged Flow Field Identification and Adjustment in High Water Cut Stage
Zhang Zhichao 1,Bai Mingxing 1,Huang Yanzhong 21.Department of Petroleum Engineering ,Northeast Petroleum University ,Daqing ,Heilongjiang ,163318,China ;2.Daqing Oilfield Co.,Ltd.The First Oil Production Plant ,Daqing ,Heilongjiang ,163118,China Abstract :To accurately identify the advantaged flow filed between oil &injection well and determine the oil &injection well pairs in advantaged flow filed is of great significance for the method of water controlling and oil increasing in reservoir at high water cut period.In response to this problem,we take Daqing oilfield as an example to research the advantaged flow channel distribution between oil well and injection well and to determine oil and injection well pairs with advantaged flow field in high water cut by the correlation coefficient method between oil wells and injection wells and reservoir sedimentary facies and flow tube numerical simulation method.And the advantaged flow field is graded through the new method of daily water injection and oil wells water cut probability distribution.And fine adjustment measures are developed to tap residual oil in high water cut according to the identified flow field distribution.After adjustment,the overall water cut is reduced from 96．7%to 95．1%and daily oil increase is stabilized at 43．5t.Keywords :Correlation for production and injection wells;Advantaged flow field classification;Sedimentary facies;Flow tube diagram;Fine adjustment 1
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