演武油田Y116井区延8段构型界面约束下的单河道砂体构型

doi:10.12108/yxyqc.20200314

岩性油气藏 ›› 2020, Vol. 32 ›› Issue (3): 144–158.doi: 10.12108/yxyqc.20200314

演武油田Y116井区延8段构型界面约束下的单河道砂体构型

童强¹, 余建国², 田云吉², 胡克来², 杨红梅³, 程旭明⁴, 朱玉双¹

1. 西北大学大陆动力学国家重点实验室/地质学系, 西安 710069;
2. 中国石油长庆油田分公司第十一采油厂, 甘肃西峰 745000;
3. 中国石油长庆油田分公司第二采油厂, 甘肃庆阳 745100;
4. 中国石油长庆油田苏里格南作业分公司作业一区, 西安 710018

收稿日期:2019-06-12 修回日期:2019-09-10 出版日期:2020-05-21 发布日期:2020-04-30
通讯作者: 朱玉双(1968-),女,博士,教授,主要从事油气田开发方面的研究工作。Email:yshzhu@nwu.edu.cn。 E-mail:yshzhu@nwu.edu.cn
作者简介:童强(1992-),男,西北大学在读博士研究生,研究方向为油气储层地质学。地址:(710069)陕西省西安市太白北路229号西北大学地质学系。Email:nwutongqiang@126.com
基金资助:
国家自然科学基金重大项目“中国非常规油气储层特征”（编号：41390451）和国家油气重大专项“鄂尔多斯盆地致密油资源潜力、甜点预测与关键技术应用”（编号：2016ZX05046）联合资助

Architecture characterization of single distributary channel sand bodies restricted by architecture interface of Yan 8 member in Y116 well area，Yanwu Oilfield

TONG Qiang¹, YU Jianguo², TIAN Yunji², HU Kelai², YANG Hongmei³, CHENG Xuming⁴, ZHU Yushuang¹

1. State Key Laboratory of Continental Dynamics/Department of Geology, Northwest University, Xi'an 710069, China;
2. No. 11 Oil Production Plant, PetroChina Changqing Oilfield Company, Xifeng 745000, Gansu, China;
3. No.2 Oil Production Plant, PetroChina Changqing Oilfield Company, Qingyang 745100, Gansu, China;
4. No.1 Operation Area, Suligen South Operation Branch, PetroChina Changqing Oilfield Company, Xi'an 710018, China

Received:2019-06-12 Revised:2019-09-10 Online:2020-05-21 Published:2020-04-30

摘要/Abstract

摘要： 单河道砂体构型的精细刻画受到第3、第4级次构型界面的约束，使得隔夹层的分类识别成为该项研究的前提。以层次分析为指导，从岩心标定入手，结合测井和录井资料综合分析，利用交会图版识别出演武油田Y116井区隔夹层的划分标准，并由单井追踪多井，研究了隔夹层的纵横向分布特征，在其约束下刻画出3类构型单元，形成了隔夹层空间分布模式。结果表明：在演武油田延8段共识别出单河道砂体间隔层、单河道砂体间夹层和单河道砂体内夹层3类构型界面，在泥质、钙质、物性3种成因下将复合分流河道砂体划分为4期单河道砂体，其中隔夹层纵横向分布具有物性夹层多见于河道中部，泥质夹层常见于河道边部，而钙质夹层多位于河道上部的分布特征；构型要素垂向叠置样式和平面接触样式研究得到，垂向以分离式和切叠式为主，横向以侧切式和泛滥平原接触为主，形成了独立型分流河道单元、分离型细粒沉积单元以及接触型增生体单元；各构型要素形成了“接触广泛、叠置错综”的具泛连通性的辫状河三角洲平原构型分布模式。本次研究实现了对研究区构型界面的识别表征，为精细刻画单河道砂体构型单元提供了依据，对油田进一步生产和开发具有理论和现实意义。

关键词: 单河道砂体构型, 精细刻画, 构型界面, 分布模式, 延8段, 演武油田

Abstract: The fine description of architecture of the sand bodies in a single channel is restricted by the third and fourth order architecture interface,which makes the classification and recognition of the interlayers to be the premise of this study. Guided by the analytic hierarchy process,starting from the core calibration,combined with the comprehensive analysis of logging data,the partition standard of the interlayer in Y116 well area of Yanwu Oilfield was identified by using intersection chart,and the horizontal and vertical distribution characteristics of the interlayer were studied by tracking multiple wells from a single well. Under its constraints,three types of architecture characterization units were depicted,forming the spatial distribution model of the architecture characterization interlayer. The results show that in Yan 8 member of Yanwu Oilfield,three types of architecture interfaces were identified,namely,the architecture characterization interlayer between sand bodies of single channel in vertical direction,the architecture characterization interlayer between sand bodies of single channel in horizontal direction and the interlayer within sand bodies of single channel. Under the genesis of argillaceous,calcareous and physical properties,the sand bodies of compound distributary channel were divided into four stages of single channel sand bodies. Among them,the architecture characterization interlayers are mainly distributed in the middle of the river,the muddy interlayers are common in the edge of the river,and the calcareous interlayers are mostly distributed in the upper part of the river. The research on the vertical superposition pattern and the plane contact pattern of the architecture characterization elements shows that the vertical separation type and cutting superposition type are the main types,and the horizontal side cutting type and flood plain contact type are the main types,forming the independent distributary channel unit,separate fine-grained sedimentary unit and contact accretion unit. All the architecture elements form an "extensive contact,superimposed and intricate" architecture distribution model of braided river delta plain with wide connectivity. This study realized the identification and characterization of interfaces in the study area,which can provide a basis for the fine characterization of single channel sand body architecture characterization unit,and has theoretical and practical significance for the further production and development of oilfield.

Key words: architecture characterization in single channel sand body, fine characterization, architecture interface, distribution pattern, Yan 8 member, Yanwu Oilfield

中图分类号:

TE121.3

童强, 余建国, 田云吉, 胡克来, 杨红梅, 程旭明, 朱玉双. 演武油田Y116井区延8段构型界面约束下的单河道砂体构型[J]. 岩性油气藏, 2020, 32(3): 144–158.

TONG Qiang, YU Jianguo, TIAN Yunji, HU Kelai, YANG Hongmei, CHENG Xuming, ZHU Yushuang. Architecture characterization of single distributary channel sand bodies restricted by architecture interface of Yan 8 member in Y116 well area，Yanwu Oilfield[J]. Lithologic Reservoirs, 2020, 32(3): 144–158.

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演武油田Y116井区延8段构型界面约束下的单河道砂体构型

Architecture characterization of single distributary channel sand bodies restricted by architecture interface of Yan 8 member in Y116 well area，Yanwu Oilfield

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