我国勘查地球物理的若干进展—1990年

THE ADVANCES IN EXPLORATION GEOPHYSICSIN CHINA-1990

从1990年起，中国地质学会勘探地球物理专业委员会每年在《物探与化探》上发表一篇综述，报导前一年我国勘查地球物理的若干进展。本文是第二篇。1990年，我国各种主要勘查地球物理方法在各主要应用领域中的工作规模和1989年大致相同。取得了较多的技术进展。多种新的国产地震仪器设备通过鉴定，其中包括遥测数据采集系统、震源及检波器。三维、高分辨率、横波、瑞利波地震勘探及垂直地震剖面的应用进一步扩大。多种新的国产测井及地下地球物理仪器设备通过鉴定，其中包括数控测井系统、微机化的井中及坑道电磁波系统等。多种新的测井资料微机处理解释系统研制完成。1990年还开始生产几种新的国产微机化电法仪器。探地雷达系统开始在工程勘查中应用。和苏联地球物理学家合作在我国油田上试验新的电法——电场差分法初步取得好的结果。在我国首次直接根据高精度重力勘查结果布置的钻井，1990年打出了工业油流。1990年是我国第七个五年计划的最后一年，所以本文最后还按各主要应用领域对我国勘查地球物理五年来的进展作了概略回顾。

: From 1990, the Commission on Exploration Geophysics, Geological Society of China would write a review every year to report some major advances in exploration geophysics in the previous year, and this paper is the second one. In 1990, the application of various major exploration methods to various fields prodeeded approximately on the same scale as that in 1989, with lots of technical advances made. Quite a few new China-made seismic instruments and equipments passed appraisal, including remote measuring data-collecting systems, seismic sources and detectors. The application of 3D, high sensiti- vity, S wave and Rayleigh wave seismic exploration and vertical seismic profile was further broadened. Varied new China-made logging and undergro- und geophysical instruments and equipments passed appraisal, which included numerical control logging systems and microcomputerized borehole and gallery electromagnetic wave systems. A number of new microcomputer logging data processing and interpretation systems were developed. In addtiion, several new China-made microcomputerized instruments for electrical method began to be produced in 1990. The ground radar system began to be used in engineering survey. In cooperation with Soviet geophysicists, a new electrical method,i. e., differential normalized method, was tested in oil fields of China with initial results obtained. Drill holes for the first time arranged directly on the basis of high-precision gravity survey revealed industrial oil flows in 1990. As 1990 was the last year of the 7 th Five-Year Plan in China, this paper has also made a brief review on the progress of exploration geophysics gained in vari- ous major fields in the past five years.