摘要
在隐蔽油砂矿上方地表,存在着与之对应关系良好的负电位天然场,可以用于发现隐蔽油砂矿的平面位置。但在对其观测的过程中,"接地电位"、"日变"等可严重影响油砂自电异常的解释和应用效果。数据采集精度和处理技术问题,已成为影响利用该方法勘查油气及油砂矿有效性及可靠性的"瓶颈"问题。通过大量实践和研究解决上述问题,取得了良好的效果。在鄂尔多斯盆地东胜地区利用油气自电法进行了油砂勘查试验,其结果通过钻探得到了证实,为隐蔽油砂矿的勘查提供了一种经济有效的方法。
Upper the hidden oil -sands mine,there is a natural negative potential field. By measuring it,we can found the planimetric position of the hidden oil - sands mine. But when we measuring this potential field, there are many factors, such as ground potential and daily variation, affecting the measurements and the interpretation results.These problems of low data acquisition accuracy and processing technique became the main problems that will affect the validity and the dependability of using this method to explore hidden oil - sands mine. Anyway, by means of many times of study and practice, we have resolved these problems, and have acquired good effects. At Dongsheng,Ordos basin, we have a try of using the oil-gas self-potential （OGSP） method to explore hidden Oil - sands mine. The interpretation results have confirmed by follow-up drilling. This offered a possible economic and effective way on exploration of hidden oil - sands mine.
出处
《地质调查与研究》
2008年第2期154-160,共7页
Geological Survey and Research
基金
国家油气专项:"全国新一轮油气资源评价"子课题"全国油砂资源评价"(ZP-S-06)
中国石油天然气股份公司生产研究项目"油砂资源调查"(2004-2007)
关键词
油气自电法
隐蔽油砂矿
接地电位
日变
东胜
the oil-gas self-potential （OGSP） method
hidden oil-sands mine
ground potential
daily variation
Dongsheng
