摘要
蒸发岩与油气经常共存于一个沉积盆地中,蒸发岩是优良油气藏盖层,故应用油气的测井数据进行盆地地下蒸发岩地层岩性的判别,可为在油气探区蒸发岩研究和寻找油气与钾盐资源提供便捷的技术手段。笔者提出了一种蒸发岩盆地岩性判别模型,它在蒸发岩盆地综合利用物探测井参数的基础上,使用专家知识对测井数据进行半定量、定性处理,给出了经验的判别公式,建立了专家知识数据模型。通过对羊塔5井测井数据进行判别,有84%与原岩芯岩性相符。结果表明,此判别模型对类似应用具有参考价值。
The evaporate and oil-gas resources often coexist in the same basin, and evaporates are the quality covering strata for oil and gas deposits. Therefore, the utilization of logging data from oil-gas drill holes to judge the lithology of evaporates in the deeply-buried strata of the depositional basin can provide a good method for the study of salt rocks and the search for potash resources in the oil-gas prospect area. This paper suggests a judging model for the lithology of the evaporate basin, which uses comprehensively geophysical prospecting logging data in the evaporate basin and then processes the logging data semi-quantitatively and qualitatively on the basis of expert knowledge. It gives experiential formula and expert knowledge data model and designs the basic implementation of algorithm. Model experimentation calculation for logging data from drill hole Yangta #5 shows that 84% of the results are identical to the known data, indicating that the model has a fairly good reference value for similar application.
出处
《地球学报》
EI
CAS
CSCD
北大核心
2009年第5期679-683,共5页
Acta Geoscientica Sinica
基金
塔里木油田公司科研项目<塔里木盆地重要蒸发岩坳陷成盐及油气生储条件研究>(编号:41005050002)
金土工程"<我国石油
煤炭
铁矿
钾盐矿产资源潜力数据库建设>(编号:JTXM-DW-KZ4)
国土资源部地质大调查重大专项<全国重要矿产资源潜力预测评价>(编号:1212010633901)联合资助
关键词
塔里木盆地
蒸发岩
岩性判别模型
测井数据
Tarim basin
evaporate
lithology discrimination model
logging data
