我国油气化探近几年来的成果与问题

RESULTS AND PROBLEMS OF OIL/GAS GEOCHEMICAL EXPLORATION IN THE RECENT YEARS IN CHINA

在“八五”科技攻关中，作者系统地研究了我国主要含油气盆地的化探资料，指出以含油气盆地为基本单元研究化探背景值的变化提高了异常的可靠性；建立不同级次化探异常的系统概急是科学地获取油气信息、正确应用化探技术的重要方面；总结了识别天然气的烃类气体特征、光谱参数等6项指标及物化探直接找油气技术；认为井中化探录井技术有广阔的应用前景。

For a key project during the 8th ''Five-Year-Plan'', the authors made a systematic study of the geochemical data collected from the major oil/gas-bearing basins in China. It is considered that the reliability of anomalies would be improved by studying the variation of geochemical background value with an oil/gas-bearing basin as a basic unit; and that it is important to acquire oil and gas information scientifically and use geochemical technology correctly; and that six indicators can be summed up including the identification of the characters of hydrocarbon gases in natural gas, and spectrometric parameters etc, as well as geophysical-geochemical prospecting technologies applied to explore oil/gas directly; and that the application of the technology with well geochemical logging has promising prospects.