总磁异常△T与油气田火山岩展布研究

Total-magnetic anomalies △T and distribution of volcanic rocks in oil and gas field

高德章

GAO Dezhang

中国石油化工股份有限公司上海海洋油气分公司研究院, 上海 200120

Institute of SINOPEC Shanghai Offshore Oil & Gas Company, Shanghai 200120, China

东海某油气田研究区分布有火山岩。鉴于火山岩具有磁性这一特征,基于总磁异常△T成果,采用总磁异常△T变倾角化极技术、小波多尺度分解技术,研究了火山岩在该区的展布与厚度。研究结果表明,具备必需的物性、磁性体分布规模等条件,在油气田开发中采用磁测成果研究磁性体展布是可行的。

Volcanic rocks existed in the study area of oil and gas field in the East China Sea. In view of volcanic rocks magnetic characteristics, based on the total magnetic anomalies △T results, using the technique of reducing to the pole by variable inclination for the total magnetic anomalies △T and technique of wavelet multiscale decomposition analysis, distribution and thickness of the volcanic rocks had been studied in the area. With necessary conditions for physical properties and scale distribution of magnetic bodies in development of oil and gas fields, to study distribution of the magnetic bodies is feasible using magnetic survey results.

https://doi.org/10.3969/j.issn.1008-2336.2011.04.005