石油工业的迅速发展,要求石油勘探者多快好省地发現和开发祖国的地下油气藏.各种地球物理勘探方法直接寻找油气藏的可能性已引起大家的注意.作者根据有限的苏联文献和国內資料,就重力勘探直接寻找油气藏的可能性提出初步看法,以供探討. 苏联某些地区在短軸背斜构造的頂部往往发現有面积和,隕度不大的重力負异常.引起这些負异常的地貭因素以往大多数人认为是由于比直接复盖在上面密度較小的沉积岩隆起,或是褶皺頂部岩石比較疏松等原因所引起的.經过对岩石密度資料的研究証明以上的因素并不存在.故得到一种推想,即含油和天然气和岩石的密度比含水岩石的密 The rapid development of the oil industry requires oil prospector to discover and develop the oil and gas fields of the motherland more quickly and economically.It has attracted the attention of all kinds of geophysical prospecting methods to find the reservoir directly.According to the limited Soviet literature And domestic data, to provide a preliminary view on the possibility of gravity exploration in searching for oil and gas reservoirs directly.For some areas in the Soviet Union, gravity anomalies with small area and small meteorites are often found in the top of short-axis anticline structures. In the past, most of the factors that led to these negative anomalies were thought to be due to the uplift of sedimentary rocks that were less densely covered directly, or the loosening of the rock at the top of the fold, etc. After the study of rock density data The above factor does not exist, so it is assumed that the density of oil and gas and rock is higher than the density of water-bearing rocks