地震资料连片处理解释技术在广安地区的应用及效果  

APPLICATION AND ITS EFFECTS OF SEISMIC DATA CONCATENATING PROCESSING AND INTERPRETATION IN GUANG'AN AREA

作　　者：覃发兰[1] 常智[1] 王玉华[1] 唐必锐[1] 晏礼[1] 

机构地区：[1]四川石油管理局物探公司物探研究中心

出　　处：《天然气工业》2007年第6期9-11,共3页Natural Gas Industry

摘　　要：川渝地区早期的地震勘探由于受设备、技术、投资等因素的限制,一般是针对某个或几个涉及范围较小的局部构造的勘探,其成果报告无法从较大区域上来分析研究构造和储层的分布情况;而原始地震资料一般来源不同,资料采集的设备、参数、极性不尽完全统一。要将相邻区块多个构造的资料进行连片处理解释需要建立一系列成熟、可行的技术。所建立的技术在2004年川中—川南过渡带(包括广安地区)17850km2二维地震资料大连片处理解释中得到了很好的应用,较客观地查明了广安构造的形态、圈闭规模、构造细节变化及与周邻构造间的接触关系,这为广安地区近几年在须家河组的勘探开发提供了基础资料。Early seismic exploration in Sichuan and Chongqing areas, restricted by equipments, technology, and funds, etc., had to be only aimed at a certain or several partial formations, so the distribution of the whole structures and reservoirs could not be studied well in comparatively large areas from the exploration results. Furthermore, the original seismic data were acquired by different teams at different time, so the acquisition equipment, parameters and polarity were also different. Therefore, a series of mature and feasible technology is needed to concatenating processing and interpreting the seismic data obtained from the neighbouring multiple structures. This technology was once used in 2004 with great success in concatenating processing and interpreting two-dimensional seismic data covering an area of 17850 km2 in the transitional zone between Central and Southern Sichuan Basin (including Guang'an area). Since then, this technology has made it clear that the Guang'an structure's conformation, traps scale, formation details and its contact with vicinities, providing important basic information for exploration and development of the Xujiahe Group in Guang'an Formation in recent years, which has acquired remarkable economic benefit.

关 键 词：广安地区 晚三叠世 构造 地震勘探 速度 模型 时-深转换 

分 类 号：P631.4[天文地球—地质矿产勘探]