组合反褶积在LD地区薄储层预测中的应用  

Application of Combined Deconvolution of Thin Reservoir Prediction in LD Area

作　　者：李美[1] 赵玉华[1] 王永刚[1] 高斌 许建权[3] 

机构地区：[1]中石油长庆油田分公司勘探开发研究院低渗透油气田勘探开发国家工程实验室,陕西西安710018 [2]中石油集团东方地球物理勘探有限责任公司长庆项目部,陕西西安710018 [3]中国石油勘探开发研究院西北分院,甘肃兰州730020

出　　处：《石油天然气学报》2013年第11期61-65,6,共5页Journal of Oil and Gas Technology

基　　金：中国石油天然气股份有限公司重大科技专项(2011E-1303)

摘　　要：LD黄土塬区为近年来鄂尔多斯盆地油气勘探的热点地区,但地震资料信噪比低、分辨率低、深层有效信号能量弱,砂体埋藏深、厚度薄、储层致密,一直是储层预测的难点。在地震资料静校正、保幅去噪等精细处理的基础上,总结出一套叠前、叠后组合反褶积逐步提高分辨率的方法。应用研究表明,该方法使得地震成像精度显著提高,为薄储层预测提供了可靠的基础资料。LD loess plateau of Ordos Basin has been the hot-point region of oil and gas exploration in recent years,but the complicated surface conditions caused the low S/N ratio and low resolution of seismic data,weak energy of effective signals,deep burial of sandbody,thin reservoir thickness and dense reservoirs,which induced the problems for reservoir prediction.Based on the static seismic data calibration and amplitude preserved denoising,a combined deconvolution method was summed up to raise resolution step by step in prestack and poststack data processes.The application shows that the method is used for obviously improving the resolution,it provides reliable data for thin reservoir prediction.

关 键 词：静校正 保幅去噪 反褶积 薄储层 分辨率 黄土塬 鄂尔多斯盆地 

分 类 号：P631.44[天文地球—地质矿产勘探]