Abstract：Borehole gravity measurement is a new geophysical method. It measures gravity values at different depth points in borehole. The gravity measurement values can be influenced by these factors: ·free air effect.which makes gravity values raise with the increase of depth; ·intermediate layer (Bouguer layer) effect, namely the attraction effect that results from the horizontal layered medium whose density is laterally uniform; ·gravity effect of abnormal density body,or borehole Bouguer gravity anomaly, caused by abnormal mass body which is in dependent of horizontal uniform density layers in crust; ·gravity effect due to surface landform or ocean bottom landform; ·gravity effect relating to borehole environment such as borehole diameter.casing,mud and so on. The vertical gravity abnormal trace which reflects the distribution of borehole abnormal bodies can be obtained by removing the above influence factors. Because of less disturbance and higher accuracy borehole gravity measurement will find its wide application in hydrocarbon exploration
王宝仁, 李虎占, 冉学峰. 井中重力测量及其在我国石油勘探中的应用前景[J]. 石油地球物理勘探, 1993, 28(3): 339-347.
Wang Bao-ren, Li Hu-zhan, Ran Xue-feng. Borehole gravity measurement and its application prospects in China's petroleum exploration. OGP, 1993, 28(3): 339-347.
