论文中文题名: | 东营凹陷西部红层储层测井评价 |
姓名: | |
学号: | 200911544 |
保密级别: | 公开 |
学科代码: | 081801 |
学科名称: | 矿产普查与勘探 |
学生类型: | 硕士 |
学位年度: | 2012 |
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专业: | |
第一导师姓名: | |
论文外文题名: | Logging Evaluation on Red Reservoir Beds of Western DongYing Sag |
论文中文关键词: | |
论文外文关键词: | DongyingSag The Red Bed The Lower Member of ES_4-Kongdian Groups 4-Property R |
论文中文摘要: |
东营凹陷西部红层储层具有埋藏较深,岩性复杂,物性较差的特点,属于低孔-低渗、超低渗油藏。通过收集博兴洼陷南部和平方王油田东部以及纯化油田三个研究区块的基本地质资料,测井、岩屑录井、钻井取心、测试、试油等资料,采用成像测井和核磁共振测井新方法与常规测井方法相结合,在储层“四性”关系研究的基础上,总结出一套适合于该类储层的测井评价方法,为今后该类油藏的勘探、开发提供储层认识及评价依据;同时针对油层注水开发对测井信息的影响,寻找水淹过程中测井参数的变化规律,为油田开发方案的调整,进一步提高采收率提供依据。
纯化油田和博兴洼陷砂四下红层划分为H1和H2两个砂层组,孔店组(孔一段)又划分为H3、H4和H5三个砂层组,平方王井区孔店组不发育,红层主要集中在沙四下。
三个区块的 “四性”关系特征为:岩性都以粉、细砂岩为主,物性以平方王油田最好,纯化油田次之,博兴洼陷最差;平方王油田含油级别以油浸为主,纯化油田和博兴洼陷含油级别以油斑和油迹为主;电性特征,纯化油田与平方王油田砂四下油层电阻率一般大于3Ω•m,博兴洼陷的油层电阻率一般大于8Ω•m,纯化油田孔店组油层电阻率一般大于4Ω•m。
研究区内识别淡水水淹的敏感曲线是自然电位曲线,识别污水和地层水水淹的敏感曲线为感应电导率(感应电阻率)和4m底部梯度电阻率曲线。对纯26块完钻井测井资料和其它资料综合分析,沙四下H1、H3、H4、H5砂组的油层均有不同程度的水淹情况,H2砂组储层发育较差,目前基本没有水淹。
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论文外文摘要: |
The westen red beds of Dongying Sag has deep Burial,complexly lithology, different mineral composition of different lithology, poor physical properties, belonging low porosity and low permeability andultra-lowpermeability reservoirs. This article is collected geological data, well testing data of three studied area, using FMI, NMR Logging and traditional well logs to deal with this problem.Establishing an effective logging method and relatedmeans for Exploration Reservoir development and Evaluation Method of red bed reservoirs based on the study of 4-property relationship.also have an study on reservoir damage during waterflooding in logging information, establishing flooded layer identification model form the role of logging parameter, and provide evidence for oilfield development plan and enhanced oil recovery.
Chunhua oil filed and Boxing Sag ES_4 sand were divided into H1 and H2 sand sets,Kongdian group was divided into H3,H4 and H5 sand sets, Pingfangwang oil filed only has ES_4 red beds;
By 4-property relationship on the basis of the study of the reservoir has the following characteristics, lithology: siltstone, fine sandstone; physical properties: Pingfangwang oil filed is best, Chunhua oil filed is second, Boxing Sag is worst, oiliness:The main oil bearing grade of Pingfangwang oil filed is immersion, oil spot and oil trace are in Chunhua oil filed and Boxing Sag; electrical characteristics,oil pay resistivity generally more than 3Ω•m of Chunhua oil filed and Pingfangwang oil filed in ES_4; oil pay resistivity of Boxing Sag generally more than 8Ω•m, oil pay resistivity of Chunhua oil filed generally more than 4Ω•m in Kongdian group
Using SP curve to identify Flooded strata, induction conductivity and Resistivity to identify wastewater and formation water. H1,H3,H4,H5 sand groups reservoir were watered out exceptH2sand group,form the completed well log data and other information in Chun 26 Block .
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中图分类号: | p618.130.2 |
开放日期: | 2012-06-10 |