岩性油气藏 ›› 2018, Vol. 30 ›› Issue (3): 17–26.doi: 10.12108/yxyqc.20180303

• 油气地质 • 上一篇    下一篇

鄂尔多斯盆地华池—合水地区长31储层孔喉结构特征

廖明光1,2, 郭芸菲1,2, 姚泾利3, 廖纪佳1,2, 南郡祥3   

  1. 1. 四川省天然气地质重点实验室·西南石油大学, 成都 610500;
    2. 西南石油大学 地球科学与技术学院, 成都 610500;
    3. 中国石油长庆油田分公司 勘探开发研究院, 西安 710018
  • 收稿日期:2017-10-16 修回日期:2018-02-03 出版日期:2018-05-21 发布日期:2018-05-21
  • 通讯作者: 廖纪佳(1983-),男,博士,讲师,主要从事沉积学和储层地质学方面的教学与科研工作。Email:liaojijia198433@163.com E-mail:liaojijia198433@163.com
  • 作者简介:廖明光(1967-),男,博士,教授,主要从事储层地质学、油气田开发地质方面的教学与科研工作。地址:(610500)四川省成都市新都区新都大道8号西南石油大学天然气地质重点实验室。Email:liaomg1967@163.com
  • 基金资助:
    国家自然科学基金项目“泥质岩层对低渗透砂岩储层油气成藏的控制机理研究”（编号：41502146）和国家重点基础研究发展（973计划）项目“中国陆相致密油（页岩油）形成机理与富集规律基础研究”（编号：2014CB239005）联合资助

Pore throat structure characteristics of Chang 31 reservoir in HuachiHeshui area, Ordos Basin

LIAO Mingguang1,2, GUO Yunfei1,2, YAO Jingli3, LIAO Jijia1,2, NAN Junxiang3   

  1. 1. Sichuan Provincial Key Laboratory of Natural Gas Geology, Southwest Petroleum University, Chengdu 610500, China;
    2. School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, China;
    3. Research Institute of Exploration & Development, PetroChina Changqing Oilfield Company, Xi'an 710018, China
  • Received:2017-10-16 Revised:2018-02-03 Online:2018-05-21 Published:2018-05-21

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摘要： 鄂尔多斯盆地华池—合水地区长31低渗透砂岩储层物性差、孔喉结构复杂，存在注水开发效率低的问题，基于高压压汞、恒速压汞技术对孔喉特征进行研究，并结合镜下薄片鉴定及扫描电镜分析，探讨了微观孔喉结构的成因。结果表明：依据高压压汞实验结果可将储层孔喉发育程度分为较好、适中及较差等3类，依据恒速压汞实验结果可将储层分为Ⅰ类大孔中细喉型、Ⅱ类大孔细喉型和Ⅲ类大孔微细喉型等3类；不同孔喉结构储层孔隙特征相似，喉道特征差异明显，储层物性受单位体积有效孔隙体积与喉道参数影响，其中孔隙度主要受单位体积有效孔隙体积、单位体积有效喉道体积和单位体积有效喉道数量影响，渗透率主要受单位体积有效孔隙体积和喉道半径影响；Ⅰ类、Ⅱ类、Ⅲ类储层孔喉比依次增大，孔喉配置关系依次变差，孔喉比与渗透率负相关性好；微观孔喉结构受胶结作用、溶蚀作用控制，胶结作用越弱，溶蚀作用越强，孔喉结构越好。

关键词: 加水热解, 排出油, 洗出油, 残留油, 总液态烃, 族组成

Abstract: The Chang 31 low permeability sandstone reservoir in Huachi-Heshui area of Ordos Basin suffers low efficiency in water injection development, which results from the poor formation physical properties and complex pore throat structure. In order to formulate a reasonable development scheme,the pore throat characteristics were investigated by high pressure mercury injection and rate-controlled mercury injection technique. Microscopic identification and scanning electron microscope analysis were also conducted to discuss the genesis of microscopic pore throat structure. The results of high pressure mercury injection experiment show that reservoir porosity development could be classified into three types, including superior one,moderate one and poor one. According to the constant-rate mercury injection experiment,the reservoirs could be classified into typeⅠ large pore and midfine throat, type Ⅱ large pore and fine throat,and type Ⅲ large pore and tiny throat. Regarding the formations with different pore-throats structures,the pore characteristics are similar but the throat characteristics are evidently different. The reservoir physical properties are influenced by effective pore volume per unit volume and throat parameters. Porosity is mainly influenced by effective pore volume per unit volume, effective throat volume per unit volume and number of effective throats per unit volume. Permeability is mainly influenced by effective pore volume per unit volume and the radius of the throat. The pore throat ratio of typeⅠ,typeⅡ and typeⅢ reservoirs increase successively and the pore throat configuration relationship deteriorates successively. The pore throat ratio is negatively correlated with the permeability. The micropore throat structure is controlled by cementation and dissolution. The weaker cementation resulted in stronger dissolution and better micropore throats structure.

Key words: hydrous pyrolysis, expelled oil, wash-out oil, residual oil, total liquid hydrocarbons, group compositions

中图分类号: 

  • TE122
[1] 冉新权, 吴胜和, 付晶, 等.鄂尔多斯盆地陇东地区延长组低渗透储层孔隙结构分类研究.地学前缘, 2013, 20(2):77-85. RAN X Q, WU S H, FU J, et al. Research on the pore structure classification of low permeability reservoir of the Yanchang Formation in Longdong area, Ordos Basin. Earth Science Frontiers, 2013, 20(2):77-85.
[2] 高永利, 张志国.恒速压汞技术定量评价低渗透砂岩孔喉结构差异性.地质科技情报, 2011, 30(4):73-76. GAO Y L, ZHANG Z G. Quantitative evaluation of pore-throat structure difference in low permeability sandstone by constantrate pressure mercury technique. Geological Science and Technology Information, 2011, 30(4):73-76.
[3] 高辉, 解伟, 杨建鹏, 等.基于恒速压汞技术的特低-超低渗砂岩储层微观孔喉特征.石油实验地质, 2011, 33(2):206-211. GAO H, XIE H, YANG J P, et al. Micro-pore throat characteristics of ultra-low permeability sandstone reservoir based on constant speed mercury intrusion technique. Petroleum Experimental Geology, 2011, 33(2):206-211.
[4] RANGEL-GERMAN E, AKIN S, CASTANIER L. Multiphaseflow properties of fractured porous media. Journal of Petroleum Science & Engineering, 2005, 51(3):197-213.
[5] 李珊, 孙卫, 王力, 等.恒速压汞技术在储层孔隙结构研究中的应用.断块油气田, 2013, 20(4):485-487. LI S, SUN W, WANG L, et al. Application of constant velocity mercury injection technique in reservoir pore structure study. Fault-Block Oil and Gas Field, 2013, 20(4):485-487.
[6] 李涛. 渭北长3低渗储层注水损害机理与储层保护技术研究.成都:西南石油大学, 2015. LI T. A study on waterflooding damage mechanism and reservoir protection technology of Chang 3 low permeability reservoir in Weibei. Chengdu:Southwest Petroleum University, 2015.
[7] 李忠兴, 杨克文, 史成恩, 等.鄂尔多斯盆地低渗透油田注水开发的调整与优化.西安石油大学学报自然科学版, 2003, 18(6):43-46. LI Z X, YANG K W, SHI C E, et al. Adjustment and optimization of waterflooding development in low permeability oil field of Ordos Basin. Journal of Xi'an Shiyou University(Natural Science Edition), 2003, 18(6):43-46.
[8] 徐黎明, 牛小兵, 梁晓伟, 等.华庆地区长6致密油储层微观孔喉结构特征.西南石油大学学报(自然科学版), 2017, 39(4):36-46. XU L M, NIU X B, LIANG X W, et al. Microstructure characteristics of the micropore throat of Chang 6 tight oil reservoir in Huaqing area. Journal of Southwest Petroleum University(Natural Science Edition), 2017, 39(4):36-46.
[9] 喻建, 马捷, 路俊刚, 等.压汞-恒速压汞在致密储层微观孔喉结构定量表征中的应用——以鄂尔多斯盆地华池-合水地区长7储层为例.石油实验地质, 2015, 37(6):789-795. YU J, MA J, LU J G, et al. Application of mercury injection and rate-controlled mercury penetration in quantitative characterization of microscopic pore structure of tight reservoirs:an example from Chang 7 reservoir of Huachi-Heshui area in Ordos Basin. Petroleum Geology and Experiment, 2015, 37(6):789-795.
[10] 高辉, 王美强, 尚水龙.应用恒速压汞定量评价特低渗透砂岩的微观孔喉非均质性——以鄂尔多斯盆地西峰油田长8储层为例.地球物理学进展, 2013, 28(4):1900-1907. GAO H, WANG M Q, SHANG S L. Quantitative evaluation of micro-pore-throat heterogeneity of extra-low permeability sandstone by constant pressure mercury:an example from Chang 8 reservoir of Xifeng Oilfield in Ordos Basin. Progress in Geophysics, 2013, 28(4):1900-1907.
[11] 李卫成, 张艳梅, 王芳, 等.应用恒速压汞技术研究致密油储层微观孔喉特征——以鄂尔多斯盆地上三叠统延长组为例. 岩性油气藏, 2012, 24(6):60-65. LI W C, ZHANG Y M, WANG F, et al. Study on micro-pore-throat characteristics of tight oil reservoir by constant velocity mercury injection technique:a case study of the Upper Triassic Yanchang Formation in Ordos Basin. Lithologic Reservoirs, 2012, 24(6):60-65.
[12] 陈转转, 高永利, 高辉.陇东地区长7致密油储层微观孔喉结构特征.西安石油大学学报(自然科学版), 2014, 29(2):29-33. CHEN Z Z, GAO Y L, GAO H. Pore throat structure characteristics of Chang 7 tight oil reservoir in Longdong area. Journal of Xi'an Shiyou University(Natural Science Edition), 2014, 29(2):29-33.
[13] 郑忠文, 张汉生.鄂尔多斯盆地富县探区延长组长6-长8段超低渗砂岩储集层孔喉特征. 新疆石油地质, 2016, 37(1):13-17. ZHENG Z W, ZHANG H S. Pore and throat characteristics of Chang 6-Chang 8 ultra-low permeability sandstone reservoir Yan-chang Formation in Fuxian exploration area of Ordos Basin. Xinjiang Petroleum Geology, 2016, 37(1):13-17.
[14] 蔡玥, 赵乐, 肖淑萍, 等.基于恒速压汞的特低-超低渗透储层孔隙结构特征——以鄂尔多斯盆地富县探区长3油层组为例.油气地质与采收率, 2013, 20(1):32-35. CAI Y, ZHAO L, XIAO S P, et al. Study on pore structure characteristics of super-low permeability and ultra-low permeability reservoirs by means of constant-speed mercury intrusion technique-case of oil layers of Chang 3 of the Yanchang Formation in Fuxian area of the Ordos Basin. Petroleum Geology and Recovery Efficiency, 2013, 20(1):32-35.
[15] 谢渊.鄂尔多斯盆地东南部延长组湖盆致密砂岩储层层序地层与油气勘探.北京:地质出版社, 2004:12-19. XIE Y. Sequence stratigraphy and oil and gas exploration of tight sandstone reservoirs in Yanchang Formation of Southeastern Ordos Basin. Beijing:Geological Publishing House, 2004:12-19.
[16] 李文厚, 庞军刚, 曹红霞, 等.鄂尔多斯盆地晚三叠世延长期沉积体系及岩相古地理演化. 西北大学学报:自然科学版, 2009, 39(3):501-506. LI W H, PANG J G, CAO H X, et al. Sedimentary system and lithofacies palaeogeography evolution of Late Triassic Yanchang Formation in Ordos Basin. Journal of Northwest University (Natural Science Edition), 2009, 39(3):501-506.
[17] 蔺宏斌, 侯明才, 陈洪德, 等, 鄂尔多斯盆地上三叠统延长组沉积体系特征及演化.成都理工大学学报(自科版), 2008, 35(6):674-680. LIN H B, HOU M C, CHEN H D, et al. Characteristics and evolution of sedimentary system of the Upper Triassic Yanchang Formation in Ordos Basin. Journal of Chengdu University of Technology(Science & Technology Edition), 2008, 35(6):674-680.
[18] 冷先刚,张志国,陈建文, 等.鄂尔多斯盆地合水地区长31油藏油气富集规律.大庆石油地质与开发, 2016, 35(4):38-42. LENG X G, ZHANG Z G, CHEN J W, et al. Hydrocarbon accumulation in Chang-31 reservoir of Heshui area in Ordos Basin. Petroleum Geology and Oilfield Development in Daqing, 2016, 35(4):38-42.
[19] 李道品. 低渗透油田高效开发决策论. 北京:石油工业出版社, 2003:3-4. LI D P. Effective development decision in low permeability oilfield. Beijing:Petroleum Industry Press, 2003:3-4.
[20] 王道富.鄂尔多斯盆地特低渗透油田开发.北京:石油工业出版社, 2007:32-41. WANG D F. Development of extra low permeability oilfield in Ordos Basin. Beijing:Petroleum Industry Press, 2007:32-41.
[21] DENNEY D. Characterization of water injection in low-permeability rock using sandstone micromodels. Journal of Petroleum Technology, 2004, 56(5):71-72.
[22] 朱玉双, 柳益群, 赵继勇, 等.不同流动单元微观渗流特征研究——以华池油田长3油藏华152块为例. 石油实验地质, 2008, 30(1):103-108. ZHU Y S, LIU Y Q, ZHAO J Y, et al. Micro seepage characteristics of different flow units:an example from Hua 152 of Chang 3 oil reservoir in Huachi Oilfield. Petroleum Geology and Experiment, 2008, 30(1):103-108.
[23] 庞振宇, 李艳, 段伟, 等.低渗、特低渗储集层微观孔隙结构分类表征——以延长油田延长组长2段和长6段储集层为例. 新疆石油地质, 2017, 38(2):193-197. PANG Z Y, LI Y, DUAN W, et al. Classification and characterization of microscopic pore structures in low and extra-low permeability reservoirs:a case study of reservoirs Chang 2 and Chang 6 in Yangchang Formation of Yanchang Oilfield. Xinjiang Petroleum Geology, 2017, 38(2):193-197.
[24] 朱永贤, 孙卫, 于峰, 等.应用常规压汞和恒速压汞实验方法研究储层微观孔隙结构——以三塘湖油田牛圈湖区头屯河组为例.天然气地球科学, 2008, 19(4):553-556. ZHU Y X, SUN W, YU F, et al. Application of high pressure Hg injection and rate-controlled Hg penetration experimental technique to studying reservoir microscope pore structure:Taking Toutunhe Formation in Niuquanhu area of Santanghu Oilfield as an example. Natural Gas Geoscience, 2008, 19(4):553-556.
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