2016年6月第35卷第3期
大庆石油地质与开发
Petroleum Geology and Oilfield Development in Daqing
DOI:10.3969/J.ISSN.1000-3754.2016.03.025
两种反演方法在NP-4号构造区的联合应用
刘磊＇贾凌霄？刘艺璇”王彦春2刘学清2
（1.中国石化胜利油田公司地质科学研究院，山东东营257015；2.中国地质大学地球物理与信息技术学院，
北京100083；3.中国地质大学地球科学与资源学院，北京100083）
June，2016 Vol. 35 No. 3
摘要：NP-4号构造区主要发育扇三角洲沉积体系，储层物性较好，但储层横向变化快、厚度薄，单一的反演方法无法同时满足储层预测的精度要求。在做好测并曲线标准化等准备工作的基础上，先利用确定性反演确定储层的大致展布范围和横向变程，再利用地质统计学反演中的随机反演和序贯高斯配置协模拟得到纵向分辨率更
高的波阻抗体和伽马体。此方法可以逐步提高反演的精度，在实际应用中取得了较好的效果。关键词：扇三角洲；确定性反演；横向变程；随机反演；序贯高斯配置协模拟
中图分类号：P631
文献标识码：A
文章编号：1000-3754（2016）03-0130-06
JOINTAPPLICATIONOFTWOINVERTINGMETHODSIN
NP-4STRUCTURALZONE
LIU Lei', JIA Lingxiao", LIU Yixuan, WANG Yanchun”, LIU Xueqing
(1. Geosciences Research Institute of Sinopec Shengli Oilfield Company, Dongying 257015, China; 2. School of Geophysics and Information Technology, China University of Geosciences,Bejing 100083,China;
3. School of Earth Sciences and Resources, China University of Geosciences,
Beijing 100083, China)
Abstract: The fan delta sedimentary system is mainly well-developed in NP-4 structural zone, which is character ized by much better physical properties for the reservoirs. But due to the quick horizontal reservoir changes and rather thinner thickness, the single inverting method cannot satisfy the reservoir prediction requirements of the hori-zontal and vertical precisions at the same time. On the basis of the well-standardized well logs and so on, the gener-al spread range and lateral variation of the reservoirs are ensured by the deterministic inversion, and moreover with the help of the stochastic inversion and sequential Gaussian collocated co-simulation in geostatistic inversion, more higher vertical resolution and gamma inversion bodies are obtained. The method can gradually increase the precision of the inversion, and furthermore it has achieved much better application effects.
Key words: fan delta; deterministic inversion; lateral variation; stochastic inversion; sequential Gaussian colloca-ted co-simulation
收稿日期：2015-10-03
改回日期：2015-10-25
基金项目：国家高科技发展计划“863”项目“多分量地震裂缝检测与油气识别技术”（2013AA064201)。作者简介：刘磊，男，1965年生，高级工程师，从事油田地质综合研究工作。
E-mail:liulei377.slyt@ sinopec.com
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