非地震综合物化探技术应用及效果
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摘要
非地震综合物化探技术，是根据不同的勘探目的和探区地球物理条件，有选择地使用多种物探技术进行联合勘探、综合解释。目前采用的主要勘探方法有重力、磁力、电法、化探等。随着野外采集质量的提高及计算技术的不断进步，突破了单一资料解释的限制，开展了物化探资料综合解释的新技术。它在很大程度上降低了单一重、磁、电异常的多解性，提高了解释成果的准确性。非地震综合处理解释系统的应用，使得重、磁、电资料的联合解释成为现实。勘探实例表明，重、磁、电、化勘探综合应用技术在盆地早期勘探阶段，能有效地解决盆地拗隆分布、区域构造、基底结构等问题，同时可结合少量的地震、钻井及地质资料对各构造单元作出早期含油远景评价；在目标勘探方面，如解决碳酸盐岩地区找礁、圈定火成岩体、基底岩相预测、盖层岩性、山前逆掩断层等地质问题也有较好的效果。
In accordance with different exploration targets and geophysical conditions in aprospecting area, non--seismic geophysical and geochemical exploration techniquesare used selectively to carry out combined exploration and comprehensive interpretation. The main prospecting techniques used at present time are gravity, magnetic, electric and geochemical surveys. Because of the improvement of field data acquisition quality and the advancement of computer technique, the limitation of single data interpretation has been broken through, and new comprehensive interpretation technique for geophysical and geochemical data has been used, so that it hasreduced the multisolution of single gravity (or magnetic and electric) data and improved the accuracy of interpretation result.The application of non--seismic comprehensive processing and interpretationsystem has made the combined interpretation of gravity, magnetic and electric datacome true. The examples of exploration show that the combined application technique of gravity, magnetic, electric and geochemical exploration may effectively resolve the tough problems such as the depression--uplift distribution, regional geology structure, and basement structure of a basin at the early stage of explorationland it makes oil--bearing potential evaluation of structural units in combination withseismic, drilling and geological data. In target exploration, good results have beenachieved in the following aspects: reef exploration in carbonate rock region, igneous rock delineation, basement lithofacies prediction, overlying strata lithologyand mountain front overthrust.
In accordance with different exploration targets and geophysical conditions in aprospecting area, non--seismic geophysical and geochemical exploration techniquesare used selectively to carry out combined exploration and comprehensive interpretation. The main prospecting techniques used at present time are gravity, magnetic, electric and geochemical surveys. Because of the improvement of field data acquisition quality and the advancement of computer technique, the limitation of single data interpretation has been broken through, and new comprehensive interpretation technique for geophysical and geochemical data has been used, so that it hasreduced the multisolution of single gravity (or magnetic and electric) data and improved the accuracy of interpretation result.The application of non--seismic comprehensive processing and interpretationsystem has made the combined interpretation of gravity, magnetic and electric datacome true. The examples of exploration show that the combined application technique of gravity, magnetic, electric and geochemical exploration may effectively resolve the tough problems such as the depression--uplift distribution, regional geology structure, and basement structure of a basin at the early stage of explorationland it makes oil--bearing potential evaluation of structural units in combination withseismic, drilling and geological data. In target exploration, good results have beenachieved in the following aspects: reef exploration in carbonate rock region, igneous rock delineation, basement lithofacies prediction, overlying strata lithologyand mountain front overthrust.
引文
1王家映.电磁阵列剖面法的基本原理.地球科学,1990,15(增刊):1～11
2王家林等.石油重磁解释,石油工业出版社,1991
3黄俊民.常规和非常规大地电磁勘探技术的应用.非地震物化探技术交流会论文选集,1996
4刘和甫.天山两侧前陆冲断系构造样式与前陆盆地演化.地球科学,1994,19(6):727～741
5汤祖伟.南方海相碳酸盐岩区电法勘探找油技术攻关探讨.非地震物化探技术交流会论文选集,1996
6罗立志.C-俯冲带及对中国西部造山带形成的作用.石油勘探与开发,1995,22(2):1～7
7张恺.新疆三大盆地边缘古推覆体的形成演化与油气远景.新疆石油地质,1989,10(1):7～15
8彭希玲.博格达山前褶皱带的再研究.新疆石油地质,1990,11(4):276～295
9范振普.高精度重力勘探在柴达木盆地东部布达逊、盐湖测区的应用.非地震物化探技术交流会论文选集.1996
2王家林等.石油重磁解释,石油工业出版社,1991
3黄俊民.常规和非常规大地电磁勘探技术的应用.非地震物化探技术交流会论文选集,1996
4刘和甫.天山两侧前陆冲断系构造样式与前陆盆地演化.地球科学,1994,19(6):727～741
5汤祖伟.南方海相碳酸盐岩区电法勘探找油技术攻关探讨.非地震物化探技术交流会论文选集,1996
6罗立志.C-俯冲带及对中国西部造山带形成的作用.石油勘探与开发,1995,22(2):1～7
7张恺.新疆三大盆地边缘古推覆体的形成演化与油气远景.新疆石油地质,1989,10(1):7～15
8彭希玲.博格达山前褶皱带的再研究.新疆石油地质,1990,11(4):276～295
9范振普.高精度重力勘探在柴达木盆地东部布达逊、盐湖测区的应用.非地震物化探技术交流会论文选集.1996
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