近地表油气化探干扰因素的讨论及其校正

DISCUSSION ON THE INTERFERENCE FACTORS OF NEAR SURFACE PETROLEUM GEOCHEMICAL SURVEY AND THEIR CORRELATIONS

张百灵

Zhang Bailing

地质矿产部石油化探中心, 合肥 230022

Research Centre of Petroleum Geochemical Survey, MGMR

油气化探的干扰因素是自然地理条件、表生地球化学作用及人类活动作用的结果。油气化探的可靠性及地质效果,从某种意义上讲,取决于干扰影响及其校正程度。干扰诸因素并非各自孤立存在,本文着重对土壤介质的各种干扰因素进行综合讨论,并提出油气化探干扰因素的多维校正方法。剔除表生地球化学作用的假象,使地表地球化学场真正反映地下油气藏的信息。

The interference factors in petroleum geochemical exploration are caused by the combination of natural geographical conditions,epigenesis and anthropological activity. The reliability of geochemical exploration and its effects in geology,to a certain extent,depend on the interference factors and the level of correction on them. However,the interference factors do not occur independently. Basically,a comprehensive study on various interferences in soil medium is made in the paper. In addition,multi-dimensional corrections for them are proposed for petroleum geochemical exploration. Getting rid of the pseudomor-phes of epigenetic geochemistry,the surface geochemical field would truely reflect the trace of subsurface hydrocarbon accumulations.

https://doi.org/10.11781/sysydz199303290