[1]李燕.东营沙四段滩坝砂储层及流体测井识别方法[J].测井技术,2009,33(02):143-147.
 LI Yan.Log Identification of Beach-bar Sandbodies Reservoir and Fluid of No.4 of Shahejie Formation in Dongying Rift Lacustrine Basin[J].WELL LOGGING TECHNOLOGY,2009,33(02):143-147.
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东营沙四段滩坝砂储层及流体测井识别方法()
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《测井技术》[ISSN:1004-1338/CN:61-1223/TE]

卷:
第33卷
期数:
2009年02期
页码:
143-147
栏目:
测井解释
出版日期:
2009-04-30

文章信息/Info

Title:
Log Identification of Beach-bar Sandbodies Reservoir and Fluid of No.4 of Shahejie Formation in Dongying Rift Lacustrine Basin
作者:
李燕;
中国石化胜利油田分公司地质科学研究院;
Author(s):
LI Yan
Geological Scientific Research Institute of Shengli Oilfield,Dongying,Shandong 257015,China
关键词:
测井解释东营凹陷滩坝砂体岩性识别流体识别
分类号:
P631.8
摘要:
东营断陷湖盆广泛发育滨浅湖相的滩坝砂沉积。由于常规测井资料分辨率不够,储层的岩性识别及油气层解释面临较大困难。基于大量的岩心和常规测井资料对比分析,总结了该储集体各类岩性的测井响应特征;通过侵入特性分析和地层水性质分析,总结了该沉积体系下油层、干层及水层的识别方法。对于岩性识别,研究认为,在该地区,灰质砂岩中灰质非均匀分布,灰质含量的高低决定储层是否含油。对多口井的岩心观测表明,在含油井段当灰质含量大于20%时储层不含油;而泥质砂岩实际为很薄的砂岩、粉砂岩与泥岩形成的互层。对于流体识别研究认为,在高压油层下,泥浆对油气的驱替作用不大,侵入影响较小,表现在电阻率测井上深、中、浅等3种曲线难以区分;在含油水层及水层中,由于泥浆滤液与地层水为相溶流体,不仅存在驱替过程,同时存在离子扩散和对流质传现象,会出现浅探测电阻率明显高于深探测电阻率的现象。

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更新日期/Last Update: 2009-04-30