加权断层泥比率法(WSGR)定量判别断层封闭性——以苏北盆地高邮凹陷永安地区为例

李储华; 于雯泉; 丁建荣

doi:10.11781/sysydz202401158

加权断层泥比率法(WSGR)定量判别断层封闭性——以苏北盆地高邮凹陷永安地区为例

doi: 10.11781/sysydz202401158

1.
中国石化江苏油田分公司勘探开发研究院, 江苏扬州 225009
2.
中国石化江苏油田分公司科技装备部, 江苏扬州 225009

基金项目:

中国石化科技攻关项目 P21034-4

详细信息

作者简介:
李储华(1975-), 男, 硕士, 高级工程师, 从事石油地质勘探工作。E-mail: lich.jsyt@sinopec.com

中图分类号: TE122.3
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出版历程
- 收稿日期: 2023-09-21
- 修回日期: 2023-12-14
- 刊出日期: 2024-01-28

Quantitative evaluation of fault sealing by Weighted Shale Gouge Ratio(WSGR): a case study of Yongan area in Gaoyou Sag, Subei Basin

1.
Exploration and Development Research Institute, Jiangsu Oilfield Branch Company, SINOPEC, Yangzhou, Jiangsu 225009, China
2.
Science, Technology and Equipment Department, Jiangsu Oilfield Branch Company, SINOPEC, Yangzhou, Jiangsu 225009, China

摘要

摘要: 断层封闭性评价是断块圈闭成藏条件分析的重要内容，在改进断层泥比率法基础上，提出了一种新的断层封闭性评价方法——加权断层泥比率法(WSGR)。首先，通过不同的地质模型开展断层泥比率法计算参数及影响因素分析，明确了断层断距、泥质含量及泥岩分布特征是泥岩涂抹的重要影响因素；并认为断层断距范围内，滑过目标位置的对置盘所有泥质含量都具有涂抹贡献，但不同点的涂抹贡献不同，距离目标位置越近泥质含量越高的对置盘泥岩点，其涂抹贡献越大。为此引入了一个新的表征参数——距离系数，定义为断层断距与各泥岩点到目标位置距离的差与断层断距的比值，来表征泥岩分布对泥岩涂抹的影响作用；在此基础上，构建了加权断层泥比率计算方法，定义为各点的泥质含量与距离系数的乘积之和再与距离系数之和的比值。利用加权断层泥比率法对苏北盆地高邮凹陷上含油气系统已知的油水层进行封闭性验证，认为当加权断层泥比率值大于0.6时，断层具有较好的封闭性，从而确定了该方法的封闭性判别标准。在高邮凹陷永安等地区始新统戴南组断层封闭性评价中取得了较好应用效果。
- 加权断层泥比率法 /
- 距离系数 /
- 断层封闭性 /
- 永安地区 /
- 高邮凹陷 /
- 苏北盆地
Abstract: The evaluation of fault sealing is an important part of analyzing hydrocarbon accumulation conditions in fault-block traps. Based on the improved Shale Gouge Ratio (SGR), this paper proposed a new method for evaluating fault sealing, Weighted Shale Gouge Ratio (WSGR). Firstly, the calculation parameters and influencing factors of SGR were analyzed using different geological models, and it is determined that fault distance, mud content, and mud rock distribution are important factors affecting shale smear. It was found that all muddy sediments that slide through the target reservoir have contributions to shale smear within fault distance, but the contributions of different points vary, with higher mud content and closer distances contributing more. Therefore, a new parameter called distance coefficient was introduced to represent the influence of mudstone distribution on shale smear. The distance coefficient is defined as the ratio of the difference between fault distance and the distance from mudstone to the target reservoir to the fault distance. Based on this, a calculation method named Weighted Shale Gouge Ratio (WSGR) was constructed, which is defined as the product of mud content and distance coefficient at each point, summed and divided by the sum of distance coefficients. The sealing performance of known oil and water layers in the upper oil and gas bearing system in the Gaoyou Sag is verified by using Weighted Shale Gouge Ratio (WSGR), and it is considered that when the value of WSGR is greater than 0.6, the fault has good sealing performance, thus determining the sealing discrimination criteria of this method. Finally, good application results have been achieved in the evaluation of fault sealing of Eocene Danan Formation in Yongan and other areas of the Gaoyou Sag.
- Weighted Shale Gouge Ratio (WSGR) /
- distance coefficient /
- fault sealing /
- Yongan area /
- Gaoyou Sag /
- Subei Basin

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图 1 泥岩涂抹影响因素地质模型

Figure 1. Geological model of influencing factors affecting shale smear

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图 2 苏北盆地高邮凹陷构造单元划分及含油气系统

Figure 2. Tectonic units and hydrocarbon systems in Gaoyou Sag, Subei Basin

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图 3 苏北盆地高邮凹陷上含油气系统加权断层泥比率值(WSGR)、断层泥比率值(SGR)与油水关系

Figure 3. Relationship between Weighted Shale Gouge Ratio (WSGR) value, Shale Gouge Ratio (SGR) value and oil-water in upper oil-gas bearing system in Gaoyou Sag, Subei Basin

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图 4 加权断层泥比率法(WSGR)定量评价苏北盆地高邮凹陷Y48块断层东段封闭性

Figure 4. Quantitative evaluation of fault sealing of eastern section of Y48 block in Gaoyou Sag, Subei Basin by Weighted Shale Gouge Ratio (WSGR)

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图 5 苏北盆地高邮凹陷Y48块Y48-1X井钻探成果与封闭判别对比

Figure 5. Comparison between drilling results and sealing judgement of well Y48-1X in Y48 block, Gaoyou Sag, Subei Basin

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参考文献(37)

[1]	毛凤鸣, 戴靖. 复杂小断块石油勘探开发技术[M]. 北京: 中国石化出版社, 2005. MAO Fengming, DAI Jing. The technologies of petroleum exploration & development in small complex fault blocks[M]. Beijing: China Petrochemical Press, 2005.
[2]	邱旭明, 陈伟, 李鹤永, 等. 苏北盆地走滑构造与复杂断块油气成藏[J]. 石油实验地质, 2023, 45(3): 393-401. doi: 10.11781/sysydz202303393 QIU Xuming, CHEN Wei, LI Heyong, et al. Strike-slip structures and hydrocarbon accumulation in complex fault blocks in Subei Basin[J]. Petroleum Geology & Experiment, 2023, 45(3): 393-401. doi: 10.11781/sysydz202303393
[3]	化祖献, 刘小平, 孙彪, 等. 断陷盆地斜坡带油气富集差异性及成藏主控因素: 以苏北盆地金湖凹陷三河次凹为例[J]. 石油实验地质, 2022, 44(6): 950-958. doi: 10.11781/sysydz202206950 HUA Zuxian, LIU Xiaoping, SUN Biao, et al. Differences in oil and gas enrichment in slope belts of rift basins and main controlling factors for hydrocarbon accumulation: a case study of Sanhe Sub-sag in Jinhu Sag, Subei Basin[J]. Petroleum Geology & Experiment, 2022, 44(6): 950-958. doi: 10.11781/sysydz202206950
[4]	吕延防, 付广, 张云峰, 等. 断层封闭性研究[M]. 北京: 石油工业出版社, 2002. LÜ Yanfang, FU Guang, ZHANG Yunfeng, et al. Research on fault sealing[M]. Beijing: Petroleum Industry Press, 2002.
[5]	谭丽娟, 解宏泽, 张辉, 等. 一种生长断层封闭性定量研究方法: 以辽河坳陷辽中凹陷JX1-1油田为例[J]. 石油实验地质, 2018, 40(2): 268-273. doi: 10.11781/sysydz201802268 TAN Lijuan, XIE Hongze, ZHANG Hui, et al. A quantitative research method on the sealing of growth faults: a case study of JX1-1 oil field in Liaozhong Sag, Liaohe Depression[J]. Petroleum Geology & Eperiment, 2018, 40(2): 268-273. doi: 10.11781/sysydz201802268
[6]	王来斌, 徐怀民. 断层封闭性的研究进展[J]. 新疆石油学院学报, 2003, 15(1): 11-15. WANG Laibin, XU Huaimin. Advances of research on fault sealing[J]. Journal of Xinjiang Petroleum Institute, 2003, 15(1): 11-15.
[7]	SMITH D A. Theoretical considerations of sealing and non-sealing faults[J]. AAPG Bulletin, 1966, 50(2): 363-374.
[8]	WEBER K S, MANDLE G, PILLAR W F, et al. Growth fault structure[C]//10th Offshore Technology Conference. [s. l. ]: [s. n. ], 1978: 2643-2653.
[9]	BOUVIER J D, KAARS-SIJPESTEIJN C H, KLUESNER D F, et al. Three-dimensional seismic interpretation and fault sealing investigations, Nun River Field, Nigeria[J]. AAPG Bulletin, 1989, 73(11): 1397-1414.
[10]	LINDSAY N G, MURPHY F C, WALSH J J, et al. Outcrop studies of shale smears on fault surface[M]//FLINT S S, BRYANT I D. The geological modelling of hydrocarbon reservoirs and outcrop analogues. Oxford: International Association of Sedimento-logists, 1993: 113-123.
[11]	张新顺, 王建平, 李亚晶, 等. 断层封闭性研究方法评述[J]. 岩性油气藏, 2013, 25(2): 123-128. doi: 10.3969/j.issn.1673-8926.2013.02.022 ZHANG Xinshun, WANG Jianping, LI Yajing, et al. A comment on research methods of fault sealing capacity[J]. Lithologic Reservoirs, 2013, 25(2): 123-128. doi: 10.3969/j.issn.1673-8926.2013.02.022
[12]	YIELDING G, FREEMAN B, NEEDHAM D T. Quantitative fault seal prediction[J]. AAPG Bulletin, 1997, 81(6): 897-917.
[13]	宋来明, 贾达吉, 徐强, 等. 断层封闭性研究进展[J]. 煤田地质与勘探, 2006, 34(5): 13-16. SONG Laiming, JIA Daji, XU Qiang, et al. Advance in fault sealing study[J]. Coal Geology & Exploration, 2006, 34(5): 13-16.
[14]	赵密福, 李阳, 李东旭. 泥岩涂抹定量研究[J]. 石油学报, 2005, 26(1): 60-64. ZHAO Mifu, LI Yang, LI Dongxu. Quantitative study of shale smear[J]. Acta Petrolei Sinica, 2005, 26(1): 60-64.
[15]	杨智, 何生, 王锦喜, 等. 断层泥比率(SGR)及其在断层侧向封闭性评价中的应用[J]. 天然气地球科学, 2005, 16(3): 347-351. doi: 10.3969/j.issn.1672-1926.2005.03.019 YANG Zhi, HE Sheng, WANG Jinxi, et al. Shale gouge ratio and its application in the fault seal estimation across the faulted zone[J]. Natural Gas Geoscience, 2005, 16(3): 347-351. doi: 10.3969/j.issn.1672-1926.2005.03.019
[16]	张瀛, 王雅杰, 李云鹏, 等. 断层泥比率法评价ZD油田通天断层侧向封闭性[J]. 录井工程, 2014, 25(4): 76-80. ZHANG Ying, WANG Yajie, LI Yunpeng, et al. Evaluation of lateral sealing of Tongtian fault in ZD Oilfield by Fault Gouge Ratio Method[J]. Mud Logging Engineering, 25(4): 76-80.
[17]	景紫岩, 李国斌, 付晓飞, 等. 基于砂箱物理模拟的断层封闭有效性评价新方法[J]. 地质论评, 2022, 68(1): 348-358. JING Ziyan, LI Guobin, FU Xiaofei, et al. New methods for evaluation fault sealing effectiveness based on sand box physical simulation[J]. Geological Review, 2022, 68(1): 348-358.
[18]	杨怀宇. 东营凹陷南坡断块类型及其油气封闭性研究[J]. 西南石油大学学报(自然科学版), 2020, 42(1): 1-9. YANG Huaiyu. Fault block types and their fault seals in the southern slope of the Dongying Depression[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2020, 42(1): 1-9.
[19]	张晓晴, 康玉国, 孙斌, 等. 勃利盆地七台河断陷煤层气富集特征及有利区优选[J]. 吉林大学学报(地球科学版), 2023, 53(4): 1033-1047. ZHANG Xiaoqing, KANG Yuguo, SUN Bin, et al. Enrichment characteristics of coalbed methane and optimization of favorable areas in Qitaihe Fault Depression, Boli Basin[J]. Journal of Jilin University (Earth Science Edition), 2023, 53(4): 1033-1047.
[20]	沙子萱, 孙源, 文全, 等. 砂泥岩地层断层岩压实成岩埋藏深度预测方法及其应用[J]. 断块油气田, 2022, 29(5): 654-658. SHA Zixuan, SUN Yuan, WEN Quan, et al. Prediction method and its application for burial depth of fault rock compaction diagenesis in sandstone and shale strata[J]. Fault-Block Oil & Gas Field, 2022, 29(5): 654-658.
[21]	洪国郎, 金强, 程付启, 等. 改进的断层封闭性计算参数的获取方法及应用: 以辽西凸起中南段为例[J]. 油气地质与采收率, 2018, 25(3): 50-54. HONG Guolang, JIN Qiang, CHENG Fuqi, et al. An improved method for extracting parameters and its application to calculating fault sealing capacity: a case study of the central-southern section of the Liaoxi Uplift[J]. Petroleum Geology and Recovery Efficiency, 2018, 25(3): 50-54.
[22]	吕延防, 王伟, 胡欣蕾, 等. 断层侧向封闭性定量评价方法[J]. 石油勘探与开发, 2016, 43(2): 310-316. LÜ Yanfang, WANG Wei, HU Xinlei, et al. Quantitative evaluation method of fault lateral sealing[J]. Petroleum Exploration and Development, 2016, 43(2): 310-316.
[23]	高先志, 杜玉民, 张宝收. 夏口断层封闭性及对油气成藏的控制作用模式[J]. 石油勘探与开发, 2003, 30(3): 76-78. GAO Xianzhi, DU Yumin, ZHANG Baoshou. The sealing of Xiakou fault and its model of controlling on the petroleum accumulation[J]. Petroleum Exploration and Development, 2003, 30(3): 76-78.
[24]	闻竹, 付晓飞, 吕延防. 断层封闭性评价及断圈含油气预测[J]. 中南大学学报(自然科学版), 2016, 47(4): 1209-1218. WEN Zhu, FU Xiaofei, LÜ Yanfang. Evaluation of fault seal and hydrocarbon potential prediction of fault traps[J]. Journal of Central South University (Science and Technology), 2016, 47(4): 1209-1218.
[25]	李虹霖, 杨传超, 张明升, 等. 渤海海域走滑—伸展断块区断层侧封能力定量评价: 以辽东湾坳陷旅大A区为例[J]. 海洋地质前沿, 2022, 38(8): 47-54. LI Honglin, YANG Chuanchao, ZHANG Mingsheng, et al. Quantitative evaluation of fault lateral sealing capacity in strike-slip-extension fault block area of Bohai Sea[J]. Marine Geology Frontiers, 2022, 38(8): 47-54.
[26]	李储华, 刘启东, 李勇, 等. 高邮凹陷"双因素互补法"断层封闭性研究及应用[J]. 复杂油气藏, 2012, 5(2): 1-4. LI Chuhua, LIU Qidong, LI Yong, et al. Research and application of fault sealing properties by the double-factor complementary method in Gaoyou Sag[J]. Complex Hydrocarbon Reservoirs, 2012, 5(2): 1-4.
[27]	李储华, 刘玉瑞, 王路, 等. 泥岩涂抹定量计算的对比分析及应用[J]. 石油天然气学报, 2009, 31(1): 164-166. LI Chuhua, LIU Yurui, WANG Lu, et al. Comparison analysis and application of the shale smear quantitative calculation[J]. Journal of Oil and Gas Technology, 2009, 31(1): 164-166.
[28]	刘启东, 李储华, 卢黎霞. 高邮凹陷断层封闭性研究[J]. 石油天然气学报, 2010, 32(2): 58-61. LIU Qidong, LI Chuhua, LU Lixia. Study on the fault sealing properties in Gaoyou Sag[J]. Journal of Oil and Gas Technology, 2010, 32(2): 58-61.
[29]	孙思尧, 范昌育, 蒲仁海, 等. 西湖凹陷平湖构造带断裂垂向封闭性研究[J]. 断块油气田, 2022, 29(3): 353-359. SUN Siyao, FAN Changyu, PU Renhai, et al. Research on vertical sealing of faults in Pinghu structural belt of Xihu Sag[J]. Fault-Block Oil and Gas Field, 2022, 29(3): 353-359.
[30]	刘建党, 兰正凯, 贾超. 江陵凹陷断层封闭性评价及勘探潜力[J]. 特种油气藏, 2022, 29(3): 36-42. LIU Jiandang, LAN Zhengkai, JIA Chao. Fault trap evaluation and exploration potential in Jiangling Sag[J]. Special Oil & Gas Reservoirs, 2022, 29(3): 36-42.
[31]	吴义志, 王建, 武刚. 断层气密性定量评价方法及其在油田开发中的应用[J]. 断块油气田, 2022, 29(2): 261-264, 277. WU Yizhi, WANG Jian, WU Gang. Quantitative assessment of fault gas-sealing capacity and its application in oilfield development[J]. Fault-Block Oil and Gas Field, 2022, 29(2): 261-264, 277.
[32]	张学才, 刘华, 张芷晴, 等. 济阳坳陷埕岛东部地区断层特征及其与新近系油气富集关系[J]. 油气地质与采收率, 2022, 29(3): 1-10. ZHANG Xuecai, LIU Hua, ZHANG Zhiqing, et al. Fault characteristics and their relationships with hydrocarbon accumulation in Neogene in eastern Chengdao area, Jiyang Depression[J]. Petroleum Geology and Recovery Efficiency, 2022, 29(3): 1-10.
[33]	周荔青, 江东辉, 周兴海, 等. 东海西湖凹陷西斜坡断层—岩性油气藏富集评价体系与勘探方向[J]. 石油实验地质, 2022, 44(5): 747-754. doi: 10.11781/sysydz202205747 ZHOU Liqing, JIANG Donghui, ZHOU Xinghai, et al. Evaluation system and exploration optimization for fault-lithologic reservoir on the western slope of Xihu Sag, East China Sea Shelf Basin[J]. Petroleum Geology & Experiment, 2022, 44(5): 747-754. doi: 10.11781/sysydz202205747
[34]	雷鸣, 王丹丹, 邱小松, 等. 基于ANSYS的断层安全性评价方法及应用: 以苏北盆地东台坳陷白驹含水层储气库为例[J]. 石油实验地质, 2022, 44(5): 904-913. doi: 10.11781/sysydz202205904 LEI Ming, WANG Dandan, QIU Xiaosong, et al. Evaluation method for fault safety and its application based on ANSYS: a case study of Baiju aquifer gas storage in Dongtai Depression, Subei Basin[J]. Petroleum Geology & Experiment, 2022, 44(5): 904-913. doi: 10.11781/sysydz202205904
[35]	李建红, 王延斌, 缪欢, 等. 北大港潜山滨海断层发育特征及其与上古生界二次生烃耦合成藏研究[J]. 特种油气藏, 2022, 29(1): 52-58. LI Jianhong, WANG Yanbin, MIAO Huan, et al. Study on developmental characteristics of coastal fault in Beidagang buried hill and its coupling with the Upper Paleozoic secondary hydrocarbon formation[J]. Special Oil & Gas Reservoirs, 2022, 29(1): 52-58.
[36]	丁建荣, 李储华, 马英俊. 苏北盆地高邮凹陷垛一段储盖组合定量分析及区带预测[J]. 石油实验地质, 2018, 40(6): 877-885. doi: 10.11781/sysydz201806877 DING Jianrong, LI Chuhua, MA Yingjun. Quantitative analysis of reservoir-cap rock assemblages of the first member of Sanduo Formation and prediction of favorable regions in Gaoyou Sag, North Jiangsu Basin[J]. Petroleum Geology & Experiment, 2018, 40(6): 877-885. doi: 10.11781/sysydz201806877
[37]	董荣鑫. 高邮凹陷戴南—三垛组古生物与沉积环境演变[J]. 同济大学学报, 1999, 27(3): 366-370. DONG Rongxin. Evolution of paleontology and sedimentary environment in Dainan-Sanduo formation of the Tertiary Gaoyou Depression[J]. Journal of Tongji University, 1999, 27(3): 366-370.