渤中油田沙河街组低渗透储层微观孔隙结构特征及多维参数分类评价

肖大坤; 范廷恩; 杨二龙; 范洪军; 张景军; 张利军

doi:10.3969/j.issn.1006-6535.2025.04.005

特种油气藏 >

2025 , Vol. 32 >Issue 4: 41 - 49

DOI: https://doi.org/10.3969/j.issn.1006-6535.2025.04.005

地质勘探

渤中油田沙河街组低渗透储层微观孔隙结构特征及多维参数分类评价

肖大坤 ,
范廷恩 ,
杨二龙 ,
范洪军 ,
张景军 ,
张利军

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1.中海石油(中国)有限公司北京研究中心,北京 100028;
2.东北石油大学,黑龙江大庆 163000

肖大坤(1988—),男,高级工程师,2010年毕业于中国石油大学(华东)资源勘查工程专业,2013年毕业于该校矿产普查与勘探专业,获硕士学位,现从事储层地质、油藏描述及油气田开发方面的研究工作。

收稿日期: 2024-08-28

修回日期: 2025-05-20

网络出版日期: 2025-09-03

基金资助

中海油集团公司重大项目“海上低渗及潜山油气田有效开发技术”(KJGG2022-0700)

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Microscopic pore structure characteristics and multi-dimensional parameter classification evaluation of low-permeability reservoirs in the Shahejie Formation, Bozhong Oilfield

XIAO Dakun ,
FAN Tingen ,
YANG Erlong ,
FAN Hongjun ,
ZHANG Jingjun ,
ZHANG Lijun

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1. CNOOC (China) Beijing Research Center, Beijing 100028, China;
2. Northeast Petroleum University, Daqing, Heilongjiang 163000, China

Received date: 2024-08-28

Revised date: 2025-05-20

Online published: 2025-09-03

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摘要

渤中油田沙河街组储层微观孔喉特征及其分类研究程度低,缺乏具有勘探开发指导意义的成果与认识。针对该问题,通过分析高压压汞、油水相渗、岩心核磁等实验结果,对渤中油田低渗透储层宏观物性、微观孔隙结构、渗流能力等精细表征及单因素进行分类讨论;利用参数优选、综合分类指数计算、K-均值聚类等方法实现储层综合分类评价。结果表明:沙河街组低渗透储层是一套以细粒长石岩屑砂岩、小孔细喉为主要特征的低孔低渗储层,孔隙度平均为11.40%,渗透率平均为1.90 mD;储集空间类型以次生粒间溶孔和粒内溶孔为主,主要发育片状、片弯状等喉道类型。依据综合评价方法及综合分类指数体系,将低渗透储层划分为3类,Ⅰ类为优质储层,具有良好的储层品质和渗流能力,Ⅱ类为中等储层,Ⅲ类为相对较差储层。该评价方案对储层有利区预测和开发方案制订有重要意义。

关键词： 微观孔隙结构; 渗流特征; 储层评价; 沙河街组低渗透储层; 渤中油田

本文引用格式

肖大坤 , 范廷恩 , 杨二龙 , 范洪军 , 张景军 , 张利军 . 渤中油田沙河街组低渗透储层微观孔隙结构特征及多维参数分类评价[J]. 特种油气藏, 2025 , 32(4) : 41 -49 . DOI: 10.3969/j.issn.1006-6535.2025.04.005

Abstract

Research on the microscopic pore-throat characteristics and classification of the Shahejie Formation reservoirs in the Bozhong Oilfield is limited,failing to provide findings and insights with guiding significance for exploration and development.To address this issue,based on the analysis of high-pressure mercury injection (HPMI),oil-water relative permeability,and core NMR experimental results,the macroscopic physical properties,microscopic pore structure,and seepage capacity of low-permeability reservoirs in the Bozhong Oilfield were finely characterized and classified through single-factor discussion;reservoir comprehensive classification and evaluation were achieved using parameter optimization,comprehensive classification index calculation,K-means clustering,and other technical methods.The results indicate that the low-permeability reservoirs of the Shahejie Formation are a set of low-porosity, low-permeability reservoirs dominated by fine-grained feldspathic lithic sandstone with small pores and fine throats,with an average porosity of 11.40% and an average permeability of 1.90 mD;the reservoir space types are mainly secondary intergranular dissolved pores and intragranular dissolved pores,primarily developing sheet-like and curved sheet-like throat types.According to the comprehensive evaluation method and comprehensive classification index system, the low-permeability reservoirs are divided into three classes:Class Ⅰ are high-quality reservoirs with good reservoir quality and seepage capacity,Class Ⅱ are medium reservoirs,and Class Ⅲ are relatively poor reservoirs.This evaluation scheme is significant for predicting favorable reservoir areas and formulating development plans.

Key words： microscopic pore structure; seepage characteristics; reservoir evaluation; Shahejie Formation low-permeability reservoir; Bozhong Oilfield

参考文献

[1] 汪超,秦俊杰,李敬松,等.低渗透储层微观特征对压裂产能的影响分析[J].长江大学学报(自然科学版),2016,13(19):14-16.
WANG Chao,QIN Junjie,LI Jingsong,et al.Effect of micro-characteristics in low permeability reservoirs on the productivity of hydraulic fracturing[J].Journal of Yangtze University(Natural Science Edition),2016,13(19):14-16.
[2] 石晓敏,位云生,朱汉卿,等.致密凝灰质砂岩储层孔隙结构特征与储层分类评价——以松辽盆地南部营城组致密凝灰质砂岩为例[J].天然气地球科学,2023,34(10):1828-1841.
SHI Xiaomin,WEI Yunsheng,ZHU Hanqing,et al.Pore structure characteristics and reservoir classification and evaluation of tight tuffaceous sandstone gas reservoir:taking the tight tuffaceous sandstone of Yingcheng Formation in southern Songliao Basin as an example[J].Natural Gas Geoscience,2023,34(10):1828-1841.
[3] 陈建,叶青,郇金来,等.基于双峰高斯函数的海上低渗透储层孔隙结构定量表征——以琼东南盆地BD21气田陵水组3段为例[J].东北石油大学学报,2024,48(1):39-42.
CHEN Jian,YE Qing,XUN Jinlai,et al.Quantitative characterization of pore structure in offshore low-permeability reservoirs based on double-peak Gaussian function:a case study of the third member of the Lingshui Formation in the BD21 Gas Field,Qiongdongnan Basin[J].Journal of Northeast Petroleum University,2024,48(1):39-42.
[4] 黄凯,杨喆,胡勇,等.渤海湾盆地渤中凹陷25-1油田沙3段近岸水下扇沉积特征[J].东北石油大学学报,2017,41(4):32-42.
HUANG Kai,YANG Zhe,HU Yong,et al.Sedimentary characteristics of nearshore subaqueous fan of the third member of Shahejie Formation in Bozhong Sag 25-1 Oilfield of Bohaiwan Basin[J].Journal of Northeast Petroleum University,2017,41(4):32-42.
[5] 崔名喆,李超,袁勋,等.渤海南部渤中34-9油田发现的勘探开发启示[J].中国石油勘探,2023,28(2):57-69.
CUI Mingzhe,LI Chao,YUAN Xun,et al.Exploration and development enlightenments from the discovery of Bozhong 34-9 Oilfield in southern Bohai Sea[J].China Petroleum Exploration,2023,28(2):57-69.
[6] 孟昊,钟大康,李超,等.渤海湾盆地渤中坳陷渤中25-1油田古近系沙河街组沙二段沉积相及演化[J].古地理学报,2016,18(2):161-172.
MENG Hao,ZHONG Dakang,LI Chao,et al.Sedimentary facies and evolution of the Member 2 of Paleogene Shahejie Formation of BZ25-1 Oilfield in Bozhong Depression,Bohaiwan Basin[J].Journal of Palaeogeography,2016,18(2):161-172.
[7] 陈丽娜,袁志刚,刘长海,等.渤中25-1油田明下段储层敏感性特征及影响因素[J].石油钻采工艺,2012,34(增刊1):63-66.
CHEN Lina,YUAN Zhigang,LIU Changhai,et al.The sensitivity of reservoir characteristics and influence factors of BZ 25-1 Oilfield the lower part of Minghuazhen Formation[J].Oil Drilling & Production Technology,2012,34(S1):63-66.
[8] 孙海涛,李超,钟大康,等.渤中25-1油田沙3段低渗透储层特征及其成因[J].岩性油气藏,2014,26(3):11-16,21.
SUN Haitao,LI Chao,ZHONG Dakang,et al.Characteristics and origin of low permeability reservoir of the third member of Shahejie Formation in Bozhong 25-1 Oilfield[J].Lithologic Reservoirs,2014,26(3):11-16,21.
[9] 胡勇,许聘,杨庆红,等.渤中25-1南油田明下段储层宏观非均质性研究[J].海洋石油,2010,30(3):26-30.
HU Yong,XU Pin,YANG Qinghong,et al.Study on the macroscopic heterogeneity of the reservoir in Bozhong 25-1S Oilfield[J].Offshore Oil,2010,30(3):26-30.
[10] 杨玉卿,潘福熙,田洪,等.渤中25-1油田沙河街组低孔低渗透储层特征及分类评价[J].现代地质,2010,24(4):685-693.
YANG Yuqing,PAN Fuxi,TIAN Hong,et al.Characteristics and classification and evaluation of low porosity and permeability reservoir in Shahejie Formation of BZ25-1 Oilfield[J].Geoscience,2010,24(4):685-693.
[11] 胡勇,周军良,汪全林,等.渤海BZ油田低渗透储层质量主控因素及开发实践[J].中国海上油气,2019,31(1):104-107.
HU Yong,ZHOU Junliang,WANG Quanlin,et al.The quality control factors and development practices of low permeability reservoirs in BZ Oilfield,Bohai Sea[J].China Offshore Oil and Gas,2019,31(1):104-107.
[12] 张金庆,杨凯雷,梁斌.我国海上低渗油田分类评价标准研究[J].中国海上油气,2012,24(6):25-27.
ZHANG Jinqing,YANG Kailei,LIANG Bin.A classification of low-permeability oilfields offshore China[J].China Offshore Oil and Gas,2012,24(6):25-27.
[13] 李超,韩雪芳,胡勇,等.浅水三角洲相多期窄河道砂体结构研究——以渤海海域渤中25-1南油田为例[J].中国石油勘探,2016,21(6):43-49.
LI Chao,HAN Xuefang,HU Yong,et al.Architecture of multiphase narrow-channel sand bodies of shallow water deltaic facies:a case study on BZ25-1S Oilfield[J].China Petroleum Exploration,2016,21(6):43-49.
[14] 石桓山,胡望水,李涛,等.致密砂岩储层孔隙结构特征对可动流体赋存的影响:以鄂尔多斯盆地庆城地区长7段为例[J].地质科技通报,2024,43(2):62-74.
SHI Huanshan,HU Wangshui,LI Tao,et al.Pore throat structure characteristics of tight sandstone reservoirs and their influence on movable fluid occurrence:taking the Chang 7 Member of Qingcheng Area of Ordos Basin as an example[J].Bulletin of Geological Science and Technology,2024,43(2):62-74.
[15] 王继超,崔鹏兴,刘双双,等.不同孔隙结构页岩油储层可动流体分布特征[J].西安石油大学学报(自然科学版),2023,38(1):59-68.
WANG Jichao,CUI Pengxing,LIU Shuangshuang,et al.Distribution characteristics of movable fluid in shale oil reservoirs with different pore structures[J].Journal of Xi′an Shiyou University(Natural Science Edition),2023,38(1):59-68.
[16] 崔雁虎,朱国涛,朱杰,等.玛2井区百口泉组砂砾岩储层可动流体赋存特征及主控因素[J].东北石油大学学报,2022,46(6):14-25.
CUI Yanhu,ZHU Guotao,ZHU Jie,et al.Occurrence characteristics and control factors of movable fluids in Baikouquan Formation glutenite reservoirs in Ma 2 Block[J].Journal of Northeast Petroleum University,2022,46(6):14-25.
[17] 吴海科,曹凯,赵方方.低渗沉积岩可动流体饱和度核磁共振实验[J].天然气地球科学,2021,32(3):457-463.
WU Haike,CAO Kai,ZHAO Fangfang.NMR experimental study of movable fluid saturation in low permeability sedimentary rocks[J].Natural Gas Geoscience,2021,32(3):457-463.
[18] 刘江斌,吴小斌,崔宏俊,等.鄂尔多斯盆地延安地区山西组山2段储层可动流体赋存影响因素分析[J].地质与勘探,2021,57(1):231-240.
LIU Jiangbin,WU Xiaobin,CUI Hongjun,et al.Influence factors of the movable fluid in the Shan 2 Reservoirs of the Shanxi Formation in the Yan′an Area,Ordos Basin[J].Geology and Exploration,2021,57(1):231-240.
[19] 刘江斌,李文厚,吴小斌,等.延安气田北部山1段储层微观孔隙结构对可动流体赋存的影响[J].西北大学学报(自然科学版),2021,51(1):109-117.
LIU Jiangbin,LI Wenhou,WU Xiaobin,et al.The influence of micropore structure on movable fluid of the Shan 1 Reservoir in the north of Yan′an Gas Field[J].Journal of Northwest University(Natural Science Edition),2021,51(1):109-117.
[20] 闫健,秦大鹏,王平平,等.鄂尔多斯盆地致密砂岩储层可动流体赋存特征及其影响因素[J].油气地质与采收率,2020,27(6):47-56.
YAN Jian,QIN Dapeng,WANG Pingping,et al.Occurrence characteristics and main controlling factors of movable fluid in tight sandstone reservoirs in Ordos Basin[J].Petroleum Geology and Recovery Efficiency,2020,27(6):47-56.
[21] 陈欢庆,丁超,杜宜静,等.储层评价研究进展[J].地质科技情报,2015,34(5):66-71.
CHEN Huanqing,DING Chao,DU Yijing,et al.Advances of reservoir evaluation researches[J].Geological Science and Technology Information,2015,34(5):66-71.
[22] 王鸣川,王燃,岳慧,等.页岩油微观渗流机理研究进展[J].石油实验地质,2024,46(1):98-110.
WANG Mingchuan,WANG Ran,YUE Hui,et al.Research progress of microscopic percolation mechanism of shale oil[J].Petroleum Geology & Experiment,2024,46(1):98-110.
[23] 张虔,唐海忠,牟明洋,等.基于核磁与压汞资料的储层孔隙结构特征研究[J]. 西南石油大学学报(自然科学版),2023,45(1):33-42.
ZHANG Qian, TANG Haizhong, MU Mingyang, et al.A study on the characteristics of reservoir pore structure based on nand mercury injection data[J].Journal of Southwest Petroleum University (Science & Technology Edition),2023,45(1):33-42.
[24] 曹小朋,刘海成,任允鹏,等.胜利油田低渗透油藏开发技术进展及展望[J].油气地质与采收率,2024,31(5):48-55.
CAO Xiaopeng,LIU Haicheng,REN Yunpeng,et al.Progress and prospects of development technologies for low-permeability oil reservoirs in Shengli Oilfield[J].Petroleum Geology and Recovery Efficiency,2024,31(5):48-55.

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