摘要
地浸砂岩型铀矿属干外生铀矿,多数产于盆地区,并与油气关系十分密切。通过地浸砂岩型铀矿的成囡分类、与油气藏的关系及其与油气藏异同点的分析对比,总结出几种典型油气藏上方的放射性异常模式。以二连盆地地浸砂岩型铀矿与油气藏的客观相伴关系为例,在鄂尔多斯盆地进行了应用试验,发现在油气田上方,低铀异常、低钾异常基本重合,且铀矿床一般定位干油藏的上方或外围。实践证明利用铀-油相伴关系,在油气勘探中应注意寻找铀矿(化)床,在铀矿(化)床周围的有利构造部位应注意加强油气勘探。
Sandstone-type uranium deposit is a kind of exogenetic uranium deposit. A majority of sandstone-type uranium deposits located in the periphery of oil-gas field have a very close relationship with oil and gas. This paper presents the classfication of sandstone-type uranium deposits, the similarities and differences between uranium ores and oil-gas accumulation, and summarizes several typical radioactive abnormality models over oil-gas field. It has been testified that low uranium and low kalium abnormality are well accorded and uranium mine distributes around or over the oil and gas accumulation. A couple of examples are given to illustrate the uranium-oil/gas associations in Erlian and Ordos basins. It is suggested that the spatial relationship of uranium ores and oil-gas should be applied in the exploration of oil-gas accumulation and sandstone-type uranium deposit.
出处
《地质科技情报》
CAS
CSCD
北大核心
2005年第4期67-72,共6页
Geological Science and Technology Information
基金
核工业地质局项目"应用航测遥感技术开展鄂尔多斯盆地砂岩型铀成矿综合评价"(200417)
关键词
铀-油相伴
地浸砂岩型铀矿
油气成藏
accompany of uranium and oil
sandstone-type uranium deposit
oil and gas accumulation
