摘要
XRD矿物分析技术的推广应用,打破了传统岩屑录井中岩性定名方法,应用技术数据手段进行岩性定名已成为提升录井技术含量的一个途径。通过恩平凹陷10口井的XRD矿物分析技术应用,在各组段岩性特征变化规律上,根据矿物含量变化建立了层内的标志层,同时依据石英、长石、黏土矿物参数建立砂泥岩岩性划分标准和特殊岩性划分图板;在储集层物性识别上,XRD矿物分析技术获得拓展性应用,利用砂岩成熟度参数与电测伽马曲线相结合,建立了规律良好的储集层物性评价图板。从技术成果总结可以看出,XRD矿物分析技术不仅适用于随钻快速评价,而且在岩性物性认识上是勘探开发的一项重要手段。
The popularization and application of XRD mineralogical analysis technology has broken the traditional lithology naming method in cuttings logging. Lithology naming with technical data means has become a way to improve the technical content of mud logging. Through the application of XRD mineralogical analysis technology to 10 wells in Enping sag, the intraformational marker bed according to mineral concentration changes was established based on the change rule of lithologic characteristics of each measure and interval. Meanwhile, lithology classification criteria of sandstone and mudstone and special lithology classification charts for special lithology were established based on the quartz, feldspar, and clay mineral parameters. In terms of reservoir physical property identification, XRD mineralogical analysis technology has gained extensive application. By combining sandstone maturity parameters with electric log gamma curve, a reservoir physical property evaluation chart with good regularity was established. The summary of technical achievements showed that XRD mineralogical analysis technology is not only suitable for rapid evaluation while drilling, but also an important means for exploration and development in cognition of lithology and physical properties.
作者
蒋钱涛
吕文海
JIANG Qiantao;LüWenhai(Shenzhen Branch of CNOOC China Limited,Shenzhen,Guangdong 518067,China;Beijing Yongshengtong Technology Development Co.,Ltd.,Beijing 100102,China)
出处
《录井工程》
2020年第1期57-61,共5页
Mud Logging Engineering
关键词
XRD矿物分析
恩平凹陷
储集层划分
细粒储集层识别
岩性图板
XRD mineralogical analysis
Enping sag,reservoir division
fine-grained reservoir identification
lithologic chart
