中国油页岩矿勘查控制程度探讨

为提高我国油页岩矿勘查工作质量,根据我国47个典型油页岩矿勘查评价成果和油页岩矿成矿地质条件及矿层赋存规律,通过综合分析研究,采用探采对比及抽稀试验进行验证,提出了我国油页岩矿勘查评价采用构造复杂程度和矿层稳定程度两种地质因素确定勘查类型。构造复杂程度划分为简单、中等、复杂3类;矿层稳定程度划分为稳定、较稳定和不稳定3型,即"三类三型"。类型为简单、稳定时,参考基本勘查工程间距采用1 000~2 000 m;类型为中等、较稳定时,参考基本勘查工程间距采用500~1 000 m;类型为复杂、不稳定时,参考基本勘查工程间距采用250~500 m。另外,在油页岩矿实际勘查工作中应在构造复杂程度和矿层稳定程度中选择勘查难度大者确定基本勘查工程间距。

Discussion on Extent of Exploration Control of Oil Shale Deposits in China

In order to improve the quality of oil shale exploration, according to the results of exploration and evaluation of 47 typical oil shale deposits in China, the metallogenic geological conditions and ore bed occurrence regularity, it is proposed that two geological factors are used to determine the types of exploration and evaluation of oil shale in China, including structural complexity and ore layer stability. The structural complexity is divided into three kinds: simple, medium and complex, and the ore layer stability consists of three types: Stable, relatively stable and unstable, that is, "three kinds and three types". When the kind and type is simple and stable, the exploration engineering interval is 1 000-2 000 m; when the kind and type is medium and relatively stable, exploration engineering interval is 500-1 000 m; when the kind and type is complex and unstable, exploration engineering interval is 250-500 m. In the oil shale actual exploration work, the exploration engineering interval should be chosen basing on the more complicated one in the structural complexity and the stability of the ore layer.