基于溶洞体照明分析的采集参数论证  

Acquisition parameters demonstration based on illumination analysis of cave

作　　者：肖云飞[1] 殷厚成[1] 

机构地区：[1]中国石油化工股份有限公司石油物探技术研究院,江苏南京211103

出　　处：《物探与化探》2017年第2期270-277,共8页Geophysical and Geochemical Exploration

基　　金：国家科技重大专项(2011ZX05035-002);科技部项目(P13141)

摘　　要：奥陶系碳酸盐岩缝洞型储层是塔河油田的主要储层类型。提高缝洞体"串珠"成像精度,精细刻画其内部特征是该地区地震勘探重点攻关难题之一,结合勘探成本,开展针对缝洞目标体的观测系统设计非常必要。笔者通过建立工区三维溶洞储层地质模型,采用基于观测系统的高斯射线束双向照明技术获得溶洞目标体偏移照明能量。保证观测系统覆盖次数相同条件下,定量论证不同采集参数(重点分析面元、方位角)对溶洞体的照明效果,据此选定最佳参数,为野外观测系统设计提供理论指导。The Ordovician Carbonate fracture-cave reservoir is the major reservoir type in Tahe Oilfield. Improving the＂string＂imaging accuracy and exquisite depicting the internal characteristic of the fracture-cave bodies are one of the key research problems about seismic exploration in this region,combined with exploration cost,carring out seismic geometry design about the fracture-cave target bodies is very necessary. Through building the three-dimensional cave reservoir geological model about work area,to obtain the migration image illumination energy with these cave reservoir target bodies by using Guassian beam bi-directional illumination technology based on seismic geometry. Under the condition of the same fold about seismic geometry,quantitatively demonstrates different illumination effect of acquisition parameters（ putting point on the bin and azimuth） on cave bodies,based on the results to choose the best parameters,providing theoretical guidance for field seismic geometry design.

关 键 词：塔河油田 三维溶洞储层地质模型 高斯射线束 双向照明 采集参数论证 观测系统设计 

分 类 号：P631.4[天文地球—地质矿产勘探]