[1]申春生,胡治华,徐中波,等.复杂断块油田薄互储层精细描述方法及应用——以渤海P油田馆陶组为例[J].复杂油气藏,2022,15(02):45-52.[doi:10.16181/j.cnki.fzyqc.2022.02.008]
 SHEN Chunsheng,HU Zhihua,XU Zhongbo,et al.Fine description method and application of thin interbed reservoir in complex fault-block oilfield: A case study of Guantao Formation in P Oilfield, Bohai Sea[J].Complex Hydrocarbon Reservoirs,2022,15(02):45-52.[doi:10.16181/j.cnki.fzyqc.2022.02.008]
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复杂断块油田薄互储层精细描述方法及应用——以渤海P油田馆陶组为例()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
15卷
期数:
2022年02期
页码:
45-52
栏目:
油气开发
出版日期:
2022-06-25

文章信息/Info

Title:
Fine description method and application of thin interbed reservoir in complex fault-block oilfield: A case study of Guantao Formation in P Oilfield, Bohai Sea
作者:
申春生胡治华徐中波李 冰徐海波
中海石油(中国)有限公司天津分公司,天津 300452
Author(s):
SHEN ChunshengHU ZhihuaXU ZhongboLI BingXU Haibo
CNOOC Tianjin Company,Tianjin 300452,China
关键词:
薄互储层精细描述属性优选沉积要素约束复杂断块
Keywords:
thin interbed reservoirfine descriptionattribute optimizationconstraint of sedimentary elementscomplex fault-block
分类号:
TE122.2
DOI:
10.16181/j.cnki.fzyqc.2022.02.008
文献标志码:
A
摘要:
渤海P油田馆陶组L70-L90油组主要发育2~8 m薄砂层和泥岩间互的薄互储层,其单砂层厚度低于地震资料分辨率,精细描述难度大。针对该难题,充分利用地震、测井、生产动态等资料,依据层次分析思路,对目的层依次运用精细时深标定、地震属性优选预测、基于沉积要素约束的薄层精细描述等技术,实现了从薄互层组到单砂层的精细描述。结合油田物性参数进行声波曲线重构,指导薄互层组的精细时深标定;基于精细标定结果进行属性提取与优选,开展薄互层组砂岩分布预测;利用沉积要素约束法刻画单砂层分布,即依据薄互层组砂岩厚度分布、沉积序列和相似油田密井网砂体宽厚比数据逐一确定砂体的沉积方向、沉积中心、最大分布范围、砂体间相对位置和单砂体横向边界5个沉积要素,据此作为薄砂层精细描述的限制条件。运用该方法对P油田2~8 m薄砂层的厚度分布进行了精细描述,研究成果在油田综合调整井位部署和优化中取得了较好的应用效果。
Abstract:
The L70-L90 oil formations of the Guantao Formation in the P Oilfield of the Bohai Sea are mainly developed thin interbed reservoirs with 2 to 8 m of thin sand layers and mudstone. The thickness of the single sand layer is lower than the resolution of seismic data,which makes the fine description difficult. Aiming at the problem,based on the hierarchy analysis method,fully utilizing seismic,logging,production performance,and other data,the fine description of the objective layer from the thin interbedded group to the single sand layer was carried out by the use of fine time-depth calibration,seismic attribute optimization prediction,and thin layer fine description techniques based on the sedimentary factors constraint,etc. in turn. The acoustic curve reconstruction was conducted in combination with the oilfield physical parameters,to guide the fine time-depth calibration of thin interbed layers. The attributes were extracted and optimized based on the fine calibration results,to predict the distribution of thin interbedded sandstone. The sedimentary factors constraint method was used to describe the distribution of a single sand layer. Based on the sandstone thickness distribution,deposition sequence,and sand body width-thickness ratio data of dense well patterns in the similar oilfields,five sedimentary elements,which include the deposition direction,the sedimentary center,the largest distribution range,the relative position between sand bodies,and the horizontal boundary of a single sand body,were determined one by one,which were used as the limit conditions of the thin sand layer fine description. This method was used to describe the thickness distribution of 2 to 8 m thin sand layers in the P Oilfield. The research results have achieved a good application effect in the comprehensive adjustment of well location deployment and optimization in the oilfield.

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备注/Memo

备注/Memo:
收稿日期:2021-05-11;改回日期:2021-06-13。 第一
作者简介:申春生(1975—),硕士,高级工程师,现从事油气开发地质研究工作。E-mail:hudy123@163.com。
基金项目:国家重大科研专项“渤海油田加密调整及提高采收率油藏工程技术示范”(2016ZX05058001)部分资助。
更新日期/Last Update: 2022-06-25