摘要
通过对研究区石炭系火山岩的岩心描述、薄片鉴定、岩石成分、岩石结构、构造及缝洞发育等资料的综合分析,研究了石炭系火山岩特征,制定出3亚类9种岩性划分方案.选取电性特征明显的5种测井曲线,应用Fisher判别法建立火山岩岩性识别模型,对146口井进行岩性识别,9种岩性回判正确率达80%以上.通过单井相研究、井震标定及地震剖面相识别,将研究区火山岩划分为5个相类型及14个亚相,深入研究了不同火山岩相和亚相的成因机制、成岩方式、岩石类型、结构构造、相序相律和储层空间等,据此建立了火山岩相模式.
On the base of deeply study the prime data, such as the core description,slice analysis, compounds,structure and fracture etc,the volcano lithology of Carboniferous was finished, and the sort plan of those rocks was established, served as three kinds with nine sub-kinds. According to projection method Fisher discriminate change the signature difference of multi-variance to few main discriminate functions with algorithm stable, accuracy（above 80%） and convenient application. Using that result recognized the lithology of 146 wells with regular logging data（GR RT DT CNL DEN）.In pride of the single well lithology, seismic calibration with well, seismic faces graduation,the five kinds of faces and fourteen sub-faces were marked out,and the orderliness of forming mechanism, ways,kinds,structure and its distribution were payed more attention. Subsequently ,the faces model was set up.
出处
《新疆地质》
CAS
CSCD
北大核心
2010年第1期73-76,共4页
Xinjiang Geology
基金
新疆石油管理局2008年科技攻关项目资助
关键词
准噶尔盆地
火山岩
岩相特征
相模式
Jungger Basin
Volcano rocks
Lithology characteristic
Faces model
