低渗透砂岩储集层渗透性伤害的微观机理与改造技术—以济阳坳陷胜利油田为例

张守鹏; 方正伟

doi:10.11698/PED.2020.02.13

石油勘探与开发 >

2020 , Vol. 47 >Issue 2: 349 - 356

DOI: https://doi.org/10.11698/PED.2020.02.13

油气田开发

低渗透砂岩储集层渗透性伤害的微观机理与改造技术—以济阳坳陷胜利油田为例

张守鹏 ,
方正伟

展开

1. 中国石油化工股份有限公司胜利油田分公司勘探开发研究院,山东东营 257015;
2. 中国石化页岩油气勘探开发重点实验室,山东东营 257015;
3. 国家能源局页岩油研发中心,山东东营 257015;
4. 中国石油化工股份有限公司胜利油田沉积模拟与储层评价重点实验室,山东东营 257015;
5. 中国石油大学（华东）地球科学与技术学院,山东青岛 266580

张守鹏（1963-）,男,山东高青人,中国石化胜利油田分公司勘探开发研究院教授级高级工程师,主要从事石油地质、低渗透油藏增产增注改造方面的研究工作。地址：山东省东营市聊城路2号,胜利油田勘探开发研究院,邮政编码：257015。E-mail: zhangshoupeng_ff@163.com 联系作者简介：方正伟（1986-）,男,湖北宜都人,中国石化胜利油田勘探开发研究院高级工程师,现为中国石油大学（华东）地质资源与地质工程专业在读博士研究生,主要从事油区储集层综合评价及低渗透油藏增产增注改造方面的研究工作。地址：山东省东营市聊城路2号,胜利油田勘探开发研究院,邮政编码：257015。E-mail: Slgfzw@163.com

收稿日期: 2019-06-19

修回日期: 2020-02-04

网络出版日期: 2020-03-21

基金资助

国家科技重大专项"济阳坳陷页岩油勘探开发目标评价"（2017ZX05049-004）

收起

Permeability damage micro-mechanisms and stimulation of low-permeability sandstone reservoirs: A case study from Jiyang Depression, Bohai Bay Basin, China

ZHANG Shoupeng ,
FANG Zhengwei

Expand

1. Research Institute of Petroleum Exploration and Development, Shengli Oilfield Company, Sinopec, Dongying 257015, China;
2. Key Laboratory of Shale Oil/Gas Exploration and Production, Sinopec, Dongying 257015, China;
3. Shale Oil Research and Development Center of National Energy Administration, Dongying 257015, China;
4. Key Laboratory of Sedimentary Simulation and Reservoir Evaluation, Shengli Oilfield Company, Sinopec, Dongying 257015, China;
5. School of Geosciences, China University of Petroleum (East China), Qingdao 266580, China

Received date: 2019-06-19

Revised date: 2020-02-04

Online published: 2020-03-21

Fold

摘要

针对低渗透砂岩储集层岩石样品"组构要素"（骨架颗粒、填隙物和孔喉结构等）特征,研发了"分步溶解、溶离"酸化、酸压的增产增注改造技术并进行现场应用。影响低渗透砂岩储集层渗透性的主要因素有3种：①砂岩颗粒骨架间的泥质充填物阻塞渗流通道;②同沉积地层水在深埋过程中矿化度-溶解度变化、地层流体不均衡迁变引发矿物结晶沉淀占据孔喉空间;③岩石在上覆压力作用下逐渐深埋,骨架碎屑经压实更致密,渗流通道变窄。"分步溶解、溶离"酸化（酸压）改造技术以缓释酸为主体,以超分子溶剂取代盐酸溶解碳酸盐、利用氟化氢铵+氟硼酸+氟磷酸复合体系溶解硅酸盐,分步溶解、逐级实施,最终达到扩孔增渗的目的。使用该技术能有效溶解对孔隙中流体有明显阻滞作用的主要填隙物成分,并能将被溶解的填隙物反应残渣从岩石架构中分离出来,扩大有效泄流半径,实现单井增产增注。经矿场试验证实该技术可靠实用。图3参22

关键词： 济阳坳陷; 低渗透砂岩; 渗透性伤害; 组构要素; 溶解; 溶离; 储集层改造; 增产增注

本文引用格式

张守鹏 , 方正伟 . 低渗透砂岩储集层渗透性伤害的微观机理与改造技术—以济阳坳陷胜利油田为例[J]. 石油勘探与开发, 2020 , 47(2) : 349 -356 . DOI: 10.11698/PED.2020.02.13

Abstract

According to the characteristics of "structural elements" (framework grain, interstitial material and pore throat structure) of low-permeability sandstone reservoir, the "step by step dissolution and separation" acidification and acid fracturing technology has been developed and tested in field. There are three main mechanisms affecting permeability of low-permeability sandstone reservoir: (1) The mud fillings between the framework grains block the seepage channels. (2) In the process of burial, the products from crystallization caused by changes in salinity and solubility and uneven migration and variation of the syn-sedimentary formation water occupy the pores and throat between grains. (3) Under the action of gradual increase of overburden pressure, the framework grains of the rock is compacted tighter, making the seepage channels turn narrower. The "step by step dissolution and separation" acidification (acid fracturing) technology uses sustained release acid as main acidizing fluid, supramolecular solvent instead of hydrochloric acid to dissolve carbonate, and a composite system of ammonium hydrogen fluoride, fluoroboric acid, and fluorophosphoric acid to dissolve silicate, and dissolving and implementing step by step, finally reaching the goal of increasing porosity and permeability. By using the technology, the main blocking interstitial material can be dissolved effectively and the dissolution residual can be removed from the rock frame, thus expanding the effective drainage radius and increasing production and injection of single well. This technology has been proved effective by field test.

Key words： Jiyang Depression; low permeability sandstone; permeability damage; structural element; dissolution; separation; reservoir stimulation; increasing production and injection

参考文献

[1] 马洪, 李建忠, 杨涛, 等. 中国陆相湖盆致密油成藏主控因素综述[J]. 石油实验地质, 2014, 36(6): 668-677.
MA Hong, LI Jianzhong, YANG Tao, et al.Summary of control factors of dense oil reservoir in Chinese continental lake basin[J]. Petroleum Experimental Geology, 2014, 36(6): 668-677.
[2] 王光付, 廖荣凤, 李江龙, 等. 中国石化低渗透油藏开发状况及前景[J]. 油气地质与采收率, 2007, 14(3): 84-89.
WANG Guangfu, LIAO Rongfeng, LI Jianglong, et al.The development situation and future of low permeability oil reservoirs of SINOPEC[J]. Petroleum Geology and Recovery Efficiency, 2007, 14(3): 84-89.
[3] 王秉海, 钱凯. 胜利油区地质研究与勘探实践[M]. 东营: 中国石油大学出版社, 1992: 239-243.
WANG Binghai, QIAN Kai.Geology research and exploration practice in the Shengli petroleum province[M]. Dongying: China University of Petroleum Press, 1992: 239-243.
[4] 林森虎, 邹才能, 袁选俊, 等. 美国致密油开发现状及启示[J]. 岩性油气藏, 2011, 23(4): 25-30.
LIN Senhu, ZOU Caineng, YUAN Xuanjun, et al.Development status and enlightenment of American tight oil[J]. Rock and Gas Reservoirs, 2011, 23(4): 25-30.
[5] 景东升, 丁锋, 袁际华. 美国致密油勘探开发现状、经验及启示[J]. 国土资源情报, 2012(1): 18-19.
JING Dongsheng, DING Feng, YUAN Jihua.Present situation, experience and inspiration of exploration and development of tight oil in the United States[J]. Land and Resources Information, 2012(1): 18-19.
[6] SONNENBERG S A, PRAMUDITO A.Petroleum geology of the giant Elm Coulee field, Williston Basin[J]. AAPG, 2009, 93(9): 1127-1153.
[7] SCHMOKER J W, HESTER T C.Organic carbon in Bakken Formation, United States portion of Williston Basin[J]. AAPG Bulletin, 1983, 67(12): 2165-2174.
[8] WEBSTER R L.Petroleum source rocks and stratigraphy of Bakken Formation in North Dakota[J]. AAPG Bulletin, 1984, 68(7): 953.
[9] ECONOMIDES M J, NOHE K G.油藏增产措施[M]. 张宏逵, 翁家乡, 杨义连等译. 东营: 中国石油大学出版社, 1991: 549-590.
ECONOMIDES M J, NOHE K G.Reservoir stimulation[M]. ZHANG Hongkui, WENG Jiaxiang, YANG Yilian, et al, Trans. Dongying: China University of Petroleum Press, 1991: 549-590.
[10] 张守鹏, 李怀渊, 张成玉, 等. 岩石微观分析判识油层伤害的技术方法与应用[J]. 石油学报, 2000, 21(5): 52-57.
ZHANG Shoupeng, LI Huaiyuan, ZHANG Chengyu, et al.Technical method and application for reservoir damaged identification by microexamination rock construction[J]. Acta Petrolei Sinica, 2000, 21(5): 52-57.
[11] 蔡进功, 张守鹏, 谢忠怀, 等. 胜利油区砂岩成岩作用及油层保护措施研究[J]. 石油大学学报, 2001, 25(4): 13-15.
CAI Jingong, ZHANG Shoupeng, XIE Zhonghuai, et al.Sandstone diagenesis and formation damage prevention in Shengli oildom[J]. Journal of the University of Petroleum, China, 2001, 25(4): 13-15.
[12] 伦增民, 李生华, 房会春, 等. 现河庄油田牛872块油井酸化液体系优选实验[J]. 油气地质与采收率, 2005, 12(5): 59-61.
LUN Zengmin, LI Shenghua, FANG Huichun, et al.Optimization experiment of acidizing fluid system in oil well of Niu872 block in Xianhezhuang Oilfield[J]. Geology and Recovery Efficiency, 2005, 12(5): 59-61.
[1] 李丕龙, 姜在兴. 东营凹陷储集体与油气分布[M]. 北京: 石油工业出版社, 2000: 53-78.
LI Pilong, JIANG Zaixing.Reservoir and oil-gas distributing in Dongying depress[M]. Beijing: Petroleum Industry Press, 2000: 53-78.
[2] APPELO C A.Cation and proton exchange pH variation and carbonate reactions in a freshening aquifer[J]. Water Resources Research, 1994, 30(10): 2793-2805.
[3] JOCBSON R L, LANGMUIR D.Dissociation constants of calcite and CaHCO₃+ from 0 to 50 ℃[J]. Geochimica ET Cosmochimica Acta, 1974, 38(2): 301-318.
[4] 康玉柱. 中国非常规致密岩油气藏特征[J]. 天然气工业, 2012, 32(5): 1-4.
KANG Yuzhu.Characteristics of Chinese non-conventional dense rock oil and gas reservoirs[J]. Natural Gas Industry, 2012, 32(5): 1-4.
[5] 刘应学, 解琪, 陈晓源, 等. 酸化解堵增能返排技术[J]. 油气地质与采收率, 2002, 9(3): 85-88.
LIU Yingxue, XIE Qi, CHEN Xiaoyuan, et al.Energization and flowback technology through plugging removal and acidization[J]. Geology and Recovery Efficiency, 2002, 9(3): 85-88.
[6] 赵福麟. 采油用剂[M]. 东营: 石油大学出版社, 1997: 147-152.
ZHAO Fulin.Oil recovery reagent[M]. Dongying: China University of Petroleum Press, 1997: 147-152.
[7] 胡文瑞, 魏漪, 鲍敬伟. 中国低渗透油气藏开发理论与技术进展[J]. 石油勘探与开发, 2018, 45(4): 646-656.
HU Wenrui, WEI Yi, BAO Jingwei.Development of the theory and technology for low permeability reservoirs in China[J]. Petroleum Exploration and Development, 2018, 45(4): 646-656.
[8] 童晓光, 张光亚, 王兆明, 等. 全球油气资源潜力与分布[J]. 石油勘探与开发, 2018, 45(4): 727-736.
TONG Xiaoguang, ZHANG Guangya, WANG Zhaoming, et al.Distribution and potential of global oil and gas resources[J]. Petroleum Exploration and Development, 2018, 45(4): 727-736.
[9] 姚泾利, 邓秀芹, 赵彦德, 等. 鄂尔多斯盆地延长组致密油特征[J]. 石油勘探与开发, 2013, 40(2): 150-158.
YAO Jingli, DENG Xiuqin, ZHAO Yande, et a1. Characteristics of tight oil in Triassic Yanchang Formation, Ordos Basin[J]. Petroleum Exploration and Development, 2013, 40(2): 150-158.
[10] 邹才能, 杨智, 陶士振, 等. 纳米油气与源储共生型油气聚集[J]. 石油勘探与开发, 2013, 39(1): 13-26.
ZOU Caineng, YANG Zhi, TAO Shizhen, et al.Nano-hydrocarbon and the accumulation in coexisting source and reservoir[J]. Petroleum Exploration and Development, 2013, 39(1): 13-26.

Options

文章导航

模态框（Modal）标题

摘要

本文引用格式

Abstract

参考文献