泾河油田裂缝型致密油藏地质特征及开发对策

doi:10.11885/j.issn.1674-5086.2018.06.04.03

摘要/Abstract

摘要： 在阐述裂缝致密油藏地质及开发动态特征的基础上，明确了开发难点，并提出开发对策，可为同类型油田开发提供借鉴。泾河油田储层致密、孔喉细小、连通性差、可动流体百分数低，发育构造和水平层理裂缝，裂缝是高产主控因素。储层可划分为4类，I、Ⅱ类为"甜点"，非均质性强、厚度薄、孔隙度低、含油饱和度低、储量丰度低；油井产量低、产能差异大、产量递减快、累产低、采收率低，开发难度大。开发难点主要有"甜点"精细描述难度大、提高井控储量难度大、提高采收率难度大、能量补充难度大等。针对开发难点，提出了"非连续"性井位部署、水平井分段压裂、滚动建产、优化油藏工程参数、能量补充先导试验、实施低成本战略等6项开发对策。

关键词: 致密油藏, 裂缝, 地质特征, 开发对策, 泾河油田

Abstract: Based on the geological characteristics and the development perspectives, this paper discusses the challenges in the exploration of fractured tight oil reservoirs, and proposes strategies for the development of their exploitation. The work, based on results from the Jinghe Oilfield, provides a reference for the development of oil fields of the same type. The Jinghe oil field is a dense reservoir with fine pore structure, poor connectivity, and a low percentage of movable fluids. Such structure, as well as the horizontal layered fractures, are the main factors controlling the yield of the reservoir. The reservoirs can be divided into four types, among which types I and Ⅱ are" sweet spots", and are characterized by a strong heterogeneity, low thickness, low porosity, low oil saturation, and low abundance. The wells have a low production, large difference in the production capacity, rapid decline in the production, low cumulative production, and low recovery capability. It is highly difficult to economically develop the reservoir. The issues in its development include the difficulty in accurately locating the " sweet spots", improving the controllable reserves, improving the recovery rate, and in performing energy injection. Six development strategies are proposed, to address the development difficulties specifically, namely:a "discontinuous" well location deployment, a segmental fracturing of horizontal wells, a rolling construction and production, the optimization of reservoir engineering parameters, the implementation of pilot tests for energy injection, and the implementation of low-cost procedures.

Key words: tight oil reservoir, fracture, geological character, development strategies

中图分类号:

TE122
TE371

刘忠群. 泾河油田裂缝型致密油藏地质特征及开发对策[J]. 西南石油大学学报(自然科学版), 2019, 41(2): 23-32.

LIU Zhongqun. Geological Characteristics and Development Strategies of Fractured Tight Oil Reservoirs in Jinghe Oilfield[J]. 西南石油大学学报(自然科学版), 2019, 41(2): 23-32.

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参考文献

[1] 刘忠群,秦锐,郝前勇,等. 泾河油田长8致密油藏地震Likelihood裂缝预测[J]. 成都理工大学学报(自然科学版),2016,43(5):609-616. doi:10.3969/j.issn.1671-9727.2016.05.11 LIU Zhongqun, QIN Rui, HAO Qianyong, et al. Seismic Likelihood fracture prediction technology for Chang-8 tight oil reservoir in Jinghe Oil Field, Ordos Basin, China[J]. Journal of Chengdu University of Technology (Science & Technology Edition), 2016, 43(5):609-616. doi:10.3969/j.issn.1671-9727.2016.05.11
[2] 周翔,何生,刘萍,等. 鄂尔多斯盆地代家坪地区长6致密油储层孔隙结构特征及分类评[J]. 地学前缘, 2016, 23(3):253-265. doi:10.13745/j.esf.2016.03.029 ZHOU Xiang, HE Sheng, LIU Ping, et al. Characteristics and classification of tight oil pore structure in reservoir Chang 6 of Daijiaping Area, Ordos Basin[J]. Earth Science Frontiers, 2016, 23(3):253-265. doi:10.13745/j.esf.-2016.03.029
[3] 肖宇,刘洪平,赵彦超. 鄂尔多斯盆地泾河油田长8段致密砂岩油层岩电性质研究[J]. 地球物理学进展, 2016, 31(2):829-835. XIAO Yu, LIU Hongping, ZHAO Yanchao. Rock electrical properties of tight oil sandstones of Chang 8 Member in Jinghe Oil Field, Ordos Basin[J]. Progress in Geophysics, 2016, 31(2):253-265.
[4] 王香增,任来义,贺永红,等. 鄂尔多斯盆地致密油的定义[J]. 油气地质与采收率, 2016, 23(1):1-7. doi:10.3969/j.issn.1009-9603.2016.01.001 WANG Xiangzeng, REN Laiyi, HE Yonghong, et al. Definition of tight oil in Ordos Basin[J]. Petroleum Geology and Recovery Efficiency, 2016, 23(1):1-7. doi:10.3969/-j.issn.1009-9603.2016.01.001
[5] 李凌川,徐文玺,郑虎成,等. 泾河油田三叠系长8段天然裂缝特征与预测[J]. 新疆石油地质, 2016, 37(3):291-296. doi:10.7657/XJPG20160308 LI Lingchuan, XU Wenxi, DENG Hucheng, et al. Characteristis and prediction of natural fractures in triassic Chang-8 Member, Jinghe Oilfield[J]. Xinjiang Petroleum Geology, 2016, 37(3):291-296. doi:10.7657/XJPG2016-0308
[6] 冯乔,赵一鸣,宋宜平,等. 陕北川口油田低渗透岩性油藏地质特征[J]. 西北大学学报(自然科学版), 1997, 27(2):151-154. FENG Qiao, ZHAO Yiming, SONG Yiping, et al. The geological characteristics of the lithological deposit of low permeability in Chuankou Oil Field, North Shaanxi[J]. Journal of Northwest University (Natural Science Edition), 1997, 27(2):151-154.
[7] 张小菊,邓虎成,毕钰,等. 水平井剖面天然裂缝响应特征及识别方法研究——以泾河油田17井区长8油藏致密砂岩储层为例[J]. 石油地质与工程, 2016, 30(4):88-91. doi:10.3969/j.issn.1673-8217.2016.04.024 ZHANG Xiaoju, DENG Hucheng, BI Yu, et al. Natural fracture response characteristics and its identification methods of horizontal wells:A case study of Chang-8 sandstone reservoir in well Block-17 of Jinghe Oilfiled[J]. Petroleum Geology and Engineering, 2016, 30(4):88-91. doi:10.3969/j.issn.1673-8217.2016.04.024
[8] 屈雪峰,孙卫,魏红玫,等. 西峰油田白马区长8油藏地质特征及开发对策[J]. 西北大学学报(自然科学版), 2006, 36(2):301-304. doi:10.3321/j.issn:1000-274X.-2006.02.032 QU Xuefeng, SUN Wei, WEI Hongmei, et al. The percolation feature and development strategy of Chang 8 reser-voir in Xifeng Oilfield, Ordos Basin[J]. Journal of Northwest University (Natural Science Edition), 2006, 36(2):301-304. doi:10.3321/j.issn:1000-274X.2006.02.032
[9] 巩磊,高铭泽,曾联波,等. 影响致密砂岩储层裂缝分布的主控因素分析——以库车前陆盆地侏罗系-新近系为例[J]. 天然气地球科学, 2017, 28(2):199-208. doi:10.11764/j.issn.1672-1926.2016.12.003 GONG Lei, GAO Mingze, ZENG Lianbo, et al. Controlling factors on fracture development in the tight sandstone reservoirs:A case study of Jurassir-Neogene in the Kuqa foreland Basin[J]. Natural Gas Geoscience, 2017, 28(2):199-208. doi:10.11764/j.issn.1672-1926.2016.12.003
[10] 付金华,罗安湘,喻建,等. 西峰油田成藏地质特征及勘探方向[J]. 石油学报, 2004, 25(2):25-29. doi:10.3321/j.issn:0253-2697.2004.02.005 FU Jinhua, LUO Anxiang, YU Jian, et al. Geological features of reservoir formation and exploration strategy of Xifeng Oilfield[J]. Acta Petrolei Sinica, 2004, 25(2):25-29. doi:10.3321/j.issn:0253-2697.2004.02.005
[11] 宋广寿,高辉,高静乐,等. 西峰油田长8储层微观孔隙结构非均质性与渗流机理实验[J]. 吉林大学学报(地球科学版),2009,39(1):53-59. doi:10.3969/j.issn.1671-5888.2009.01.008 SONG Guangshou, GAO Hui, GAO Jingle, et al. Experimental of microscopic pore structure heterogeneity and flow mechanism of Chang 8 Reservoir in Xifeng Oil Field[J]. Journal of Jilin Unviersity (Earth Science Edition), 2009, 39(1):53-59. doi:10.3969/j.issn.1671-5888.-2009.01.008
[12] 冷先刚,孙卫,解伟,等. 西峰油田庄58井区长81储层出水原因[J]. 断块油气田, 2009, 16(2):89-91. LENG Xiangang, SUN Wei, XIE Wei, et al. Causation of water producing for Chang 81 low permeability reservoir in Block Zhuang 58 of Xifeng Oilfield[J]. Fault-Block Oil & Gas Field, 2009, 16(2):89-91.
[13] 顾燕凌,何举涛,樊红旗,等. 西峰油田长8储层增注工艺研究[J]. 断块油气田, 2008, 15(2):113-115. GU Yanling, HE Jutao, FAN Hongqi, et al. Research on enhancing injectivity technology in Chang 8 reservoir of Xifeng Oilfield[J]. Fault-Block Oil & Gas Field, 2008, 15(2):113-115.
[14] 王小琳,武平仓,韩亚萍,等. 西峰油田长8层注水现状及投注措施效果[J]. 石油勘探与开发, 2008, 35(3):344-348. doi:10.3321/j.issn:1000-0747.2008.03.013 WANG Xiaolin, WU Pingcang, HAN Yaping, et al. Current situation and measures of water injection in Chang 8 Layer, Xifeng Oilfield, Changqing[J]. Petroleum Exploration and Development, 2008, 35(3):344-348. doi:10.-3321/j.issn:1000-0747.2008.03.013
[15] 高辉,宋广寿,高静乐,等. 西峰油田微观孔隙结构对注水开发效果的影响[J]. 西北大学学报(自然科学版), 2008, 38(1):121-126. GAO Hui, SONG Guangshou, GAO Jingle, et al. The influences of microscopic pore structure on waterflooding effectiveness in Xifeng Oilfield[J]. Journal of Northwest University (Natural Science Edition), 2008, 38(1):121-126.
[16] 贾永刚,宁中宏. 西峰油田注水压力升高原因及对策[J]. 钻采工艺, 2008, 31(5):95-98. doi:10.3969/j.-issn.1006-768X.2008.05.029 JIA Yonggang, NING Zhonghong. Reasons of injection pressure rise and preventive measures in Xifeng Oilfield[J]. Drilling & Production Technology, 2008, 31(5):95-98. doi:10.3969/j.issn.1006-768X.2008.05.029
[17] 王勇刚,文志刚,陈玲. 特低渗透油藏水驱油效率影响因素研究——以西峰油田白马中区长8油层为例[J]. 石油天然气学报, 2009, 31(4):284-288. doi:10.3969/j.issn.1000-9752.2009.04.070 WANG Yonggang, WEN Zhigang, CHEN Ling. Study on water-flooding influential factors in super-low permeability reservoirs:By taking Chang 8 Reservoir of Middle Baima Area in Xifeng Oilfield as an example[J]. Journal of Oil and Gas Technology, 2009, 31(4):284-288. doi:10.-3969/j.issn.1000-9752.2009.04.070
[18] 付晓燕,孙卫. 低渗透储集层微观水驱油机理研究——以西峰油田庄19井区长82储集层为例[J]. 新疆石油地质, 2005, 26(6):681-683. doi:10.3969/j.-issn.1001-3873.2005.06.023 FU Xiaoyan, SUN Wei. Study of microscopic oil-water displacement mechanism of low-permeability reservoir:An example of Chang 82 Reservoir in Wellblock Zhuang-19 of Xifeng Oilfiled[J]. Xinjiang Petroleum Geology, 2005, 26(6):681-683. doi:10.3969/j.issn.1001-3873.-2005.06.023
[19] 李中锋,何顺利,门成全,等. 低渗透储层垂直缝延伸规律研究[J]. 大庆石油地质与开发, 2005, 24(5):24-26. doi:10.3969/j.issn.1000-3754.2005.05.007 LI Zhongfeng, HE Shunli, MEN Chengquan, et al. Research on vertical fracture extension rules in low permeability reservoirs[J]. Petroleum Geology & Oilfield Development in Daqing, 2005, 24(5):24-26. doi:10.3969/-j.issn.1000-3754.2005.05.007
[20] 杨斌虎,张洪军,罗静兰. 安塞油田特低渗微裂缝性油藏合理注水参数[J]. 西安科技大学学报, 2010, 30(4):430-435. doi:10.3969/j.issn.1672-9315.2010.04.011 YANG Binhu, ZHANG Hongjun, LUO Jinglan. Reasonable parameters of periodic water injection for ultra-low permeability reservoir with micro-fissures of Ansai Oil Field[J]. Journal Of Xi'an University of Science and Technology, 2010, 30(4):430-435. doi:10.3969/j.issn.1672——9315.2010.04.011
[21] 曾亚勤,徐永高,黄远. 安塞油田提高水驱效率试验研究[J]. 江汉石油学院学报, 2004, 26(2):124-125. doi:10.3969/j.issn.1000-9752.2004.02.050 ZENG Yaqin, XU Yonggao, HUANG Yuan. Experimental study for improving waterflooding efficiency in Ansai Oilfield[J]. Journal of Jianghan Petroleum Institute, 2004, 26(2):124-125. doi:10.3969/j.issn.1000-9752.2004.02.-050
[22] 段春节,吴汉宁,杨琼警,等. 镇泾油田镇泾5井区长81油藏单井产能差异原因探讨[J]. 西北大学学报(自然科学版), 2009, 39(5):841-845. DUAN Chunjie, WU Hanning, YANG Qiongjing, et al. Probe into the cause of single-well productivity difference for Chang 81 Oil Reservoir of ZJ5 Wellblock in Zhenjing Oilfield[J]. Journal of Northwest University (Natural Science Edition), 2009, 39(5):841-845.
[23] 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[J]. 西安石油学院学报(自然科学版),2003,18(6):43-46. doi:10.3969/j.issn.1673-064X.2003.06.011 LI Zhongxing, YANG Kewen, SHI Cheng'en, et al. Adjustment and optimization of water injection development of the low-permeability oilfields in Eerduosi Basin[J]. Journal of Xi'an Petroleum Institute (Natural Science Edition), 2003, 18(6):43-46. doi:10.3969/j.issn.1673-064X.-2003.06.011
[24] 丁晓琪,张哨楠,谢世文,等. 鄂尔多斯盆地镇泾地区中生界成藏系统[J]. 石油与天然气地质, 2011, 32(2):157-164. DING Xiaoqi, ZHANG Shaonan, XIE Shiwen, et al. Hydrocarbon accumulation system of the Mesozoic in Zhenjing Oilfield, the Ordos Basin[J]. Oil & Gas Geology, 2011, 32(2):157-164.
[25] 葛鹏莉,张哨楠,丁晓琪,等. 鄂尔多斯盆地镇泾地区长62储层含油性研究[J]. 岩性油气藏, 2009, 21(3):65-69. doi:10.3969/j.issn.1673-8926.2009.03.013 GE Pengli, ZHANG Shaonan, DING Xiaoqi, et al. Oiliness of Chang 62 Reservoir in Zhenyuan and Jingchuan Area in southern Ordos Basin[J]. Northwest Oil & Gas Exploration, 2009, 21(3):65-69. doi:10.3969/j.issn.1673-8926.2009.03.013
[26] 郭彦如,刘俊榜,杨华,等. 鄂尔多斯盆地延长组低渗透致密岩性油藏成藏机理[J]. 石油勘探与开发, 2012, 39(4):417-425. GUO Yanru, LIU Junbang, YANG Hua, et al. Hydrocarbon accumulation mechanism of low permeable tight lithologic oil reservoirs in the Yanchang Formation, Ordos Basin, China[J]. Petroleum Exploration and Development, 2012, 39(4):417-425.