我国油气化探的现状与发展趋势

THE PRESENT SITUATION AND DEVELOPMENT OF OIL AND GAS GEOCHEMICAL EXPLORATION IN CHINA

近年来,油气化探理念发生了两大转变,即:油气化探研究由点(油气藏)到面(全国主要含油气盆地)、由浅(近地表)入深(井下);油气化探已由以普查为主发展到概查、普查、详查、精查等4个级次阶段。近年来,我国油气化探取得了重大进展。化探方法技术得到了发展,基础理论研究有所进展,开发了新的测试技术,研制了新的数据处理与解释评价系统,建立了中国主要含油气盆地油气化探数据库。展望了油气化探的发展趋势。

In recent years, two remarkable changes have taken place in the concept of oil and gas geochemical exploration, i.e. , the oil and gas geochemical exploration has grown from the points （ oil and gas reservoirs） to the extensive regions （ main oil and gas basins in China）, and from the shallow （near-surface） part to the depth （downhole exploration） ; the oil and gas geochemical exploration has developed from the reconnaissance survey to the four-grade survey stage consisting of general survey, ce survey, detailed survey and intensive survey. Remarkable advances have been recently made in oil and gas geochemical exploration of China. The method and technology for geochemical exploration have gained development, the basic theoretical researches have made advances, some new test and analysis techniques have been developed, the new data - processing and interpretation-evaluation system has been formulated, and the database of oil and gas geochemical exploration for main oil and gas basins in China has been set up. This paper describes the development trend of oil and gas geochemical exploration in China.