摘要
冀中坳陷的勘探程度高,目前绝大多数中浅层构造目标已基本落实,而且已经进入滚动开发的中、后期阶段,油气储量和产量呈现不可逆转的递减,迫使中浅层构造勘探工作逐步走入低谷,制约了油田公司的健康发展。相对而言,深潜山及其内幕的勘探程度相对较低,且具有很大的勘探潜力,是目前主要的勘探领域。但该领域现有的大多数地震资料都存在信噪比低、成像差、归位不准确等问题。因此,以凤河营潜山带为目标靶区,针对目标靶区的地震地质条件,开展覆盖次数、接收线距、道密度及观测系统均匀度等地震采集方法研究,取得了良好的效果,地震资料品质有了显著提高,而且总结了一套适合于冀中坳陷深潜山及内幕勘探的地震采集方法,为今后在类似区域进行地震采集提供了有利依据。
Exploration degree is high in Jizhong Depression. Currently, most of the structural targets in the middle and shallow layers have been located and brought under progressive development in the medium and later stages. The oil and gas reserves and production are inevitably on the decline, making exploration of the structures in the middle and shallow layers more and more difficult and affecting a healthy development of the company. Comparably speaking, exploration degree is relatively low in deep buried hill and its inner curtain, where there is a great potential for exploration. They are the main exploration fields at the present time. However, most of the current seismic data about this field have the problems of low signal-noise ratio, poor imaging and inaccuracy. Therefore, the study is focused on the target zone of Fengheying buried hill and the seismic geological conditions in the target zone. Good results have been achieved in study of the seismic acquisition method, such as times of fold, receiving line interval, channel density and geometry of uniformity. With the quality of seismic data remarkably improved, a set of seismic acquisition method has been summarized to facilitate exploration of deep buried hill and its inner curtain in Jizhong Depression so as to provide favorable basis for seismic data acquisition in the similar areas.
出处
《中国石油勘探》
CAS
2012年第6期69-72,7-8,共4页
China Petroleum Exploration
关键词
凤河营潜山带
地震采集方法
覆盖次数
道密度
接收线距
观测系统均匀度
Fengheying buried hill belt, seismic acquisition method, times of coverage, channel density, receiving line interval, geometry of uniformity
