基于三维SGR模型的断层侧向封闭性定量表征——以尼日尔M油田为例

doi:10.11743/ogg20190615

石油与天然气地质 ›› 2019, Vol. 40 ›› Issue (6): 1317-1323.doi: 10.11743/ogg20190615

基于三维SGR模型的断层侧向封闭性定量表征——以尼日尔M油田为例

雷诚¹, 袁新涛¹, 杨轩宇¹, 徐庆岩¹, 王敏¹, 佘姣凤²

1. 中国石油勘探开发研究院, 北京 100083;
2. 中国石油塔里木油田公司勘探开发研究院, 新疆库尔勒 841000

收稿日期:2018-03-13 修回日期:2019-05-17 出版日期:2019-12-28 发布日期:2019-10-15
作者简介:雷诚(1989-),男,工程师,油气田开发地质。E-mail:leichengnx@petrochina.com.cn。
基金资助:
中国石油天然气集团公司重大专项（2016D-44）。

Quantitative characterization of fault lateral sealing capacity based on 3-D SGR model-A case from M field,Niger

Lei Cheng¹, Yuan Xintao¹, Yang Xuanyu¹, Xu Qingyan¹, Wang Min¹, She Jiaofeng²

1. Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, China;
2. Exploration & Development Research Institute of Tarim Oilfield Company Ltd., PetroChina, Korla, Xinjiang 841000, China

Received:2018-03-13 Revised:2019-05-17 Online:2019-12-28 Published:2019-10-15

摘要/Abstract

摘要： 前人对断层封闭性的研究很多，但大多都基于断层受到的正压力大小对其进行表征，而对于断层压实成岩时间这一因素考虑较少。本文定义岩石压实强度，并利用该参数与断层岩的断层泥比率（SGR）值计算断层的排替压力；根据断层岩与储层的排替压力差定量表征断层侧向封堵性，最后将该方法应用到M油田。研究表明，在M油田，SGR值小于11时，断层岩没有封闭能力；SGR值大于40时，断层岩具有很强的封闭能力；介于两者之间时，断层岩SGR值与其能够封闭的最大烃柱高度（H_max）存在线性关系。

关键词: 断层泥比率(SGR), 烃柱高度, 岩石压实强度, 排替压力, 断层侧向封闭性, 断层岩, 尼日尔M油田

Abstract: Many studies have been performed on sealing capacity of faults.However,most of the previous studies characterize sealing capacity based on the normal stress on faults,without considering the timing of compaction and diagenesis of fault.In the study,rock compaction strength is defined and used,in combination with Shale Gouge Ratio (SGR),to calculate the displacement pressure of faults.Then,the lateral sealing capacity of fault is quantitatively evaluated according to the differential replacement pressure between fault rock and reservoir.Finally,the method is applied to the M oilfield.The results show that when SGR is less than 11,the fault rock has no sealing capacity; when it is over 40,the fault rock is strong in sealing capacity; while when it ranges between 11 and 40,the relationship between SGR and maximum oil column height that the fault rock could support can be characterized by a linear equation.

Key words: Shale Gouge Ratio(SGR), hydrocarbon column height, rock compaction strength, displacement pressure, lateral sealing capacity of fault, fault rock, M field of Niger

中图分类号:

TE122.1

雷诚,袁新涛,杨轩宇,等. 基于三维SGR模型的断层侧向封闭性定量表征——以尼日尔M油田为例[J]. 石油与天然气地质, 2019, 40(6): 1317-1323. doi: 10.11743/ogg20190615 Lei Cheng,Yuan Xintao,Yang Xuanyu,et al. Quantitative characterization of fault lateral sealing capacity based on 3-D SGR model-A case from M field,Niger[J]. Oil & Gas Geology, 2019, 40(6): 1317-1323. doi: 10.11743/ogg20190615

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基于三维SGR模型的断层侧向封闭性定量表征——以尼日尔M油田为例

Quantitative characterization of fault lateral sealing capacity based on 3-D SGR model-A case from M field,Niger

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