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喇嘛甸油田不同类型储层微观孔隙结构变化特征
引用本文:杜建涛,纪红梅,赵云飞.喇嘛甸油田不同类型储层微观孔隙结构变化特征[J].中外能源,2011,16(2):76-80.
作者姓名:杜建涛  纪红梅  赵云飞
作者单位:大庆油田有限责任公司第六采油厂,黑龙江大庆,163114
摘    要:储层微观孔隙结构参数是影响水驱开发效果的重要因素。喇嘛甸油田经过30多年的水驱开发调整,储层微观孔隙结构特征发生了一定的变化。通过天然岩心水驱实验及不同开发阶段检查井取心检测数据,研究了长期水驱后不同类型储层孔隙度、渗透率及孔喉半径等物性参数,分析了水驱前后储层微观孔隙结构特征参数的变化规律。统计资料表明,喇嘛甸油田各类油层,长期注水冲刷后,孔隙度值略有增加,但变化率不大,平均只有0.58%。物性好的储层,渗透率增加,但易形成无效循环通道;物性差的储层,渗透率增加幅度小,更差储层由于地层污染、堵塞,甚至存在渗透率降低现象。喇嘛甸油田经过长期注水冲刷,发育较好的厚油层,其孔喉半径、孔喉半径中值一般增加2μm左右;发育较差的薄油层,大喉道半径、喉道半径中值只降低1μm左右。

关 键 词:水驱开发  微观孔隙结构特征  物性参数  孔喉半径  渗透率

The Changing Characteristics of Microscopic Pore Structure for Different-type Reservoirs in Lamadian Oilfield
Du Jiantao,Ji Hongmei,Zhao Yunfei.The Changing Characteristics of Microscopic Pore Structure for Different-type Reservoirs in Lamadian Oilfield[J].China Foreigh Energy,2011,16(2):76-80.
Authors:Du Jiantao  Ji Hongmei  Zhao Yunfei
Affiliation:Du Jiantao,Ji Hongmei,Zhao Yunfei(No.6 Oil Production Plant,Daqing Oilfield Co.,Ltd.,Daqing Heilongjiang 163114)
Abstract:The parameter of the microscopic pore structure for reservoirs is crucial to the effectiveness of water-driving development.After more than 30 years of water-driving development and adjustment in Lamadian oilfield,the microscopic pore structure characteristics have experienced some changes.Based on water-driving tests by natural core and coring data gained from inspection wells during different stages of development,physical parameters such as reservoir porosity,permeability,and pore-throat radius for diffe...
Keywords:water-driving development  microscopic pore structure characteristics  physical parameter  pore-throat radius  permeability  
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