地震Wheeler域变换结合时频分析技术用于渤海油田岩性油气藏描述

doi:10.12108/yxyqc.20180314

岩性油气藏 ›› 2018, Vol. 30 ›› Issue (3): 124–132.doi: 10.12108/yxyqc.20180314

地震Wheeler域变换结合时频分析技术用于渤海油田岩性油气藏描述

刘腾, 王军, 张京思, 张藜, 蔡少武

中海石油(中国)有限公司天津分公司渤海石油研究院, 天津 300459

收稿日期:2017-11-02 修回日期:2018-01-13 出版日期:2018-05-21 发布日期:2018-05-21
作者简介:刘腾(1987-),男,硕士,工程师,主要从事地震资料解释与储层描述等方面的研究工作。地址:(300459)天津市塘沽区海洋高新技术开发区海川路2121号渤海石油管理局大厦B座。Email:liuteng@cnooc.com.cn。
基金资助:
“十二五”国家科技重大专项“渤海海域大中型油气田地质特征”（编号：2011ZX05023-006-002）资助

Application of Wheeler transform combined with time-frequency analysis technology to lithologic reservoir characterization of Bohai Oilfield

LIU Teng, WANG Jun, ZHANG Jingsi, ZHANG Li, CAI Shaowu

Tianjin Branch of CNOOC Ltd., Tianjin 300459, China

Received:2017-11-02 Revised:2018-01-13 Online:2018-05-21 Published:2018-05-21

摘要/Abstract

摘要： 为研究渤海油田石臼坨凸起缓坡带A区块岩性油气藏的成藏模式、预测勘探有利区带，亟须精细刻画层序格架下沉积体系的分布形态、分析储层顶底板油气保存条件及上倾封堵条件等。首先利用时频分析技术精细划分井上体系域，再采用基于地震数据驱动的Wheeler域变换技术将井上划分结果向三维空间进行推广，快速建立精细体系域格架，进行储层预测及保存条件分析。结果表明：石臼坨凸起缓坡带紧邻秦南富烃凹陷的主洼，汇烃条件优越；区内控洼长期活动断裂与三角洲砂体共同组成复式输导网络，利于岩性油气藏成藏；缓坡带上的鼻状构造是油气运移的重要方向和轨迹，一旦上倾方向具有封堵条件即可形成油气藏。整体而言，渤海油田石臼坨凸起缓坡带A区块的保存条件及封堵条件良好，是岩性油气藏勘探的有利区带。

关键词: 岩石, 岩心, 压汞, 压汞曲线, 毛管压力, 恒速压汞, 孔隙, 孔喉比

Abstract: In order to study the reservoir accumulation model of lithologic reservoirs and find favorable exploration zones in block A in the gentle slope zone of Shijiutuo uplift,we need to characterize the distribution of sedimentary systems and analyze the preservation conditions and updip sealing conditions of oil and gas in the reservoir top and bottom plate. This paper firstly used time-frequency analysis technology to divide the 2D sedimentary systems of wells,and then used the Wheeler transform based on seismic data to promote the results of wells to the 3D space,to promote the rapid establishment of fine sedimentary systems framework, and carried out reservoir prediction and preservation condition analysis. The results show that: (1)adjacent to Qinnan hydrocarbonrich generation depression,the gentle slope zone in Shijiutuo uplift has good conditions for hydrocarbon collection; (2)the long-term active fault in the study area together with sand bodies in delta formed a double-type transport network,which is beneficial for the formation of lithologic reservoirs; (3)the nose-shaped structure in the gentle slope zone is an important direction and track of hydrocarbon migration,once the area in the updip direction has good sealing conditions,it can form oil and gas reservoirs. Overall, block A has favorable preservation and sealing conditions, so it is a favorable exploration zone of lithologic reservoirs.

Key words: rock, core, mercury injection, mercury injection curve, capillary pressure, constant-speed mercury injection, pore, pore-throat ratio

中图分类号:

TE19

刘腾, 王军, 张京思, 张藜, 蔡少武. 地震Wheeler域变换结合时频分析技术用于渤海油田岩性油气藏描述[J]. 岩性油气藏, 2018, 30(3): 124–132.

LIU Teng, WANG Jun, ZHANG Jingsi, ZHANG Li, CAI Shaowu. Application of Wheeler transform combined with time-frequency analysis technology to lithologic reservoir characterization of Bohai Oilfield[J]. Lithologic Reservoirs, 2018, 30(3): 124–132.

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地震Wheeler域变换结合时频分析技术用于渤海油田岩性油气藏描述

Application of Wheeler transform combined with time-frequency analysis technology to lithologic reservoir characterization of Bohai Oilfield

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