地震宽线方法的应用和效果

THE PRACTICE OF WIDE LINE PROFILING AND ITS EFFECTIVENESS

地质矿产部第六物探大队

地震宽线剖面方法已经提出多年,但在我国还未广泛应用于生产。苏北TG地区的油气评价较高,但地震地质条件十分复杂,多年来地震资料一直过不了关。一九八二年度,我们在该地区采用地震宽线剖面方法生产,用一个队年做了92.16公里的宽线剖面,取得了较为显著的效果。本文对该区的地质条件,以往的地震勘探工作,地震宽线剖面的野外工作方法,宽线资料处理,宽线资料的常规解释与空间定量解释,以及取得的效果等方面作了论述。

WLP (WIDE LINE PROFILING) was advanced many years ago. But it hasn't been widely used for production yet in our country. TG, north of Jiangsu is an area of highly perspective in oil and gas. However, to obtain the desirable seismic data therefrom has been a formidable problem since then, for the geological conditions there for seismic survey is very complex.In 1982, survey was conducted in the area using WLP. Actually, five 92.16km long sections have been completed by one crew in a year. And a remarkable result has been achieved as a consequence.Moreover, the description of geologieal condition on site and the seismic survey performed in the past including the worksite layouts of WLP, data processing, the conventional interpretation and dimensional, analysis as well as the effects produced are expounded in the paper.