变尺度构造模型在地质统计学反演储层预测中的应用

doi:10.7623/syxb201902007

石油学报 ›› 2019, Vol. 40 ›› Issue (2): 190-196,239.DOI: 10.7623/syxb201902007

变尺度构造模型在地质统计学反演储层预测中的应用

徐立恒¹, 宋宝权¹, 韩嵩², 胡学恒³, 李科³, 杨会东¹, 王元波¹, 黄勇¹

1. 大庆油田有限责任公司勘探开发研究院黑龙江大庆 163712;
2. 中国石油西南油气田公司勘探开发研究院四川成都 610041;
3. 中国石油玉门油田公司老君庙采油厂甘肃酒泉 735019

收稿日期:2018-01-19 修回日期:2018-09-11 出版日期:2019-02-25 发布日期:2019-03-05
通讯作者: 徐立恒,男,1980年4月生,2003年获大庆石油学院学士学位,2009年获中国石油大学(北京)博士学位,现为大庆油田有限责任公司勘探开发研究院高级工程师,主要从事油气地质与地球物理综合研究工作。Email:daqing_daruo@163.com
作者简介:徐立恒,男,1980年4月生,2003年获大庆石油学院学士学位,2009年获中国石油大学(北京)博士学位,现为大庆油田有限责任公司勘探开发研究院高级工程师,主要从事油气地质与地球物理综合研究工作。Email:daqing_daruo@163.com
基金资助:
国家科技重大专项"大庆长恒特高含水油田提高采收率示范工程"(2016ZX05054)资助

Application of variable-scale structure model on geo-statistics inversion reservoir prediction

Xu Liheng¹, Song Baoquan¹, Han Song², Hu Xueheng³, Li Ke³, Yang Huidong¹, Wang Yuanbo¹, Huang Yong¹

1. Exploration and Development Research Institute, Daqing Oilfield Company Limited, Heilongjiang Daqing 163712, China;
2. Exploration and Development Research Institute, PetroChina Southwest Oil and Gas Field Company, Sichuan Chengdu 610041, China;
3. Laojunmiao Production Plant, PetroChina Yumen Oilfield Company, Gansu Jiuquan 735019, China

Received:2018-01-19 Revised:2018-09-11 Online:2019-02-25 Published:2019-03-05

摘要/Abstract

摘要：

地质统计学反演是油田勘探开发储层精细描述较常见的方法,实际应用中具有多解性且纵向上无法将砂体准确落实到开发层系。在对比分析油层组、砂岩组、小层级及沉积单元级不同尺度下反演预测效果的基础上,提出变尺度构造模型作为约束地质统计学反演的框架模型。对于低弯曲和高弯曲分流河道砂体采用砂岩组尺度,针对支状内前缘砂体采用小层尺度,建立变尺度构造模型;并在模型的约束下,优化不同类型储层反演参数、开展地质统计学反演运算。变尺度构造模型约束地质统计学反演方法具有较高横向分辨能力,井间窄小河道和复合河道砂体特征明显,并在大庆长垣BEX区块实际应用中取得了较好的效果。

关键词: 构造模型, 变尺度, 地质统计学反演, 储层描述, 开发应用

Abstract:

Geo-statistics inversion is a common method for reservoir fine description during oilfield exploration and development. However, this method has multi-solution in actual application and cannot exactly locate sand body in the explored horizons vertically. Based on the inversion prediction results of oil-zone group, sandstone group, small series and sedimentation units at different scales, a variable-scale tectonic model was proposed as a frame model for constraining geo-statistics inversion. Sandstone group scale is adopted for low-sinuosity and high-sinuosity distributary channel, and small-layer scale is used for branched front sand body. On this basis, the variable-scale tectonic model can be built. Under the constraint of this model, the inversion parameters for different types of reservoirs are optimized to perform geo-statistics inversion calculation. The geo-statistics inversion method constrained by variable-scale tectonic model has a high lateral resolution capability, and remarkably reflects the sand body characteristics of inter-well narrow river channel and composite channel. Great achievement has been made in Daqing placanticline BEX block.

Key words: structure model, variable-scale, geo-statistics inversion, reservoir description, development and application

中图分类号:

TE19

徐立恒, 宋宝权, 韩嵩, 胡学恒, 李科, 杨会东, 王元波, 黄勇. 变尺度构造模型在地质统计学反演储层预测中的应用[J]. 石油学报, 2019, 40(2): 190-196,239.

Xu Liheng, Song Baoquan, Han Song, Hu Xueheng, Li Ke, Yang Huidong, Wang Yuanbo, Huang Yong. Application of variable-scale structure model on geo-statistics inversion reservoir prediction[J]. Acta Petrolei Sinica, 2019, 40(2): 190-196,239.

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变尺度构造模型在地质统计学反演储层预测中的应用

Application of variable-scale structure model on geo-statistics inversion reservoir prediction

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