Journal of Jilin University(Earth Science Edition) ›› 2018, Vol. 48 ›› Issue (3): 705-718.doi: 10.13278/j.cnki.jjuese.20170006

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Comprehensive Quantitative Evaluation of Vertical Sealing Ability of Faults in Caprock: An Example of Ed2 Mudstone Caprock in Nanpu Sag

Hu Xinlei, Lü Yanfang, Sun Yonghe, Sun Tongwen   

  1. College of Earth Sciences, Northeast Petroleum University, Daqing 163318, Heilongjiang, China
  • Received:2017-09-16 Online:2018-05-26 Published:2018-05-26
  • Supported by:
    Supported by National Oil and Gas Major Project (2016ZX05007-003-03),National Science and Technology Major Project (2016ZX05006-005),National Natural Science Foundation of China (41572127),Ortheast Petroleum University Graduate Students' Innovative Project (YJSCX2017-001NEPU),PetroChina Company Limited Science and Technology Major Project (2016D-0702)

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Abstract: To accurately evaluate the vertical sealing ability of the faults in caprock, based on the experiment of verifying the influence of the rock anisotropy and the mechanical relation of the displacement pressure of the fault rock and the reservoir rock in different directions, we improved the pressure-difference method to evaluate the fault sealing ability,and further analyzed the vertical sealing ability of the main faults Fnp5-3 and Fnp5-5 in 5th structure of Nanpu sag in the Bohai Bay basin, in combination with the differences in diagenetic time of different rocks, as well as the influence of the rock anisotropy on displacement pressure. The results indicate that:there is a low limit of displacement pressure difference between the fault rock and the reservoir rock, and only if the displacement pressure of the fault rock is larger than that of the reservoir rock,and the difference between the above two is larger than or equal to the low limit, then the faults seal vertically. From this, it is determined that the low limit of the reverse fault Fnp5-3 is 0.221 MPa, and the low limit of the forward fault Fnp5-5 is 0.311 MPa. Influenced by the accumulation of oil-gas and the characteristics of the fault internal structure, reverse faults are more likely to seal than forward faults. This is coincided well with the pattern of oil-gas accumulation; while the evaluation results obtained by the previous method without considering the above factors are inconsistent with the actual drilling oil-gas results. The improved method is reasonable and feasible for a comprehensive evaluation of the fault vertical sealing ability.

Key words: vertical sealing ability, displacement pressure, diagenetic time, anisotropy of rock, mudstone, Nanpu sag

CLC Number: 

  • P618.13
[1] Hager D. Practicle Oil Geology[M].New York:McGraw-Hill, 1915:20-35.
[2] Landes K K. A Scrutiny of the Abstract[J]. American Association of Petroleum Geologists Bulletin, 1951, 35:1660-1966.
[3] Perkins H. Fault-Closure Type Fields, Southeast Louisiana:Gulf Coast[J]. Association of Geological Societies Transactions, 1961, 11:177-196.
[4] Weber K J, Daukora E. Petroleum Geology of the Niger delta[C]//Satoh Y. Deltaic Deposits and Petroleum. Tokyo:9th World Petroleum Congress, 1975:209-221.
[5] Weber K J, Mandl G, Pilaar W F, et al. The Role of Faults in Hydrocarbon Migration and Trapping in Nigerian Growth Fault Structures[C]//Weber K. 10th Annual OTC. Houston:Offshore Technology Conference, 1978:2643-2653.
[6] Watts N L. Theoretical Aspects of Cap-Rock and Fault Seals for Single and Two Phase Hydrocarbon Columns[J]. Marine and Petroleum Geology, 1987, 4:274-307.
[7] 吕延防,沙子萱,付晓飞,等. 断层垂向封闭性定量评价方法及其应用[J]. 石油学报, 2007, 28(5):34-38. Lü Yanfang, Sha Zixuan, Fu Xiaofei, et al. Quantitative Evaluation Method for Fault Vertical Sealing Ability and Its Application[J]. Acta Petrolei Sinica, 2007, 28(5):34-38.
[8] 吕延防,黄劲松,付广,等. 砂泥岩薄互层段中断层封闭性的定量研究[J]. 石油学报, 2009, 30(6):824-829. Lü Yanfang, Huang Jinsong, Fu Guang, et al. Quantitative Study on Fault Sealing Ability in Sandstone and Mudstone Thin Interbed[J]. Acta Petrolei Sinica, 2009, 30(6):824-829.
[9] 史集建,李丽丽,付广,等. 盖层内断层垂向封闭性定量评价方法及应用[J]. 吉林大学学报(地球科学版), 2012, 42(增刊2):162-170. Shi Jijian, Li Lili, Fu Guang, et al. Quantitative Evaluation Method and Application of Vertical Sealing Property of Faults in Caprock[J]. Journal of Jilin University (Earth Science Edition), 2012, 42(Sup.2):162-170.
[10] 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):1-7. Lü Yanfang, Wang Wei, Hu Xinlei, et al. Quantitative Evaluation Method of Fault Lateral Sealing[J]. Petroleum Exploration and Development, 2016, 43(2):1-7.
[11] Allan U S. Model for Hydrocarbon Migration and Entrapment Within Faulted Structures[J]. AAPG Bulletin, 1989, 73:803-811.
[12] Knipe R J. Juxtaposition and Seal Diagrams to Help Analyze Fault Seals in Hydrocarbon Reservoirs[J]. AAPG Bulletin, 1997, 81(2):187-195.
[13] Lindsay N G, Murphy F C, Walsh J J, et al. Outcrop Studies of Shale Smears on Fault Surfaces[J]. Special Publications of the International Association of Sedimentologists, 1993, 15:113-123.
[14] Fulljames J R, Zijerveld L J J, Franssen R C M W. FaultSeal Processes:Systematic Analysis of Fault Seals Over Geological and Production Time Scales[J]. Norwegian Petroleum Society Special Publications, 1997, 7(7):51-59.
[15] Yielding G. Shale Gouge Ratio:Calibration by Geo-history[J]. Norwegian Petroleum Society Special Publications, 2002, 11(2):1-15.
[16] Bretan P, Yielding G, Jones H. Using Calibrate Shale Gouge Ratio to Estimate Hydrocarbon Column Heights[J]. AAPG, 2003, 87(3):397-413.
[17] Tveranger J, Braathen A, Skar T, et al. Centre for Integrated Petroleum Research:Research Activities with Emphasis on Fluid Flow in Fault Zones[J]. Norwegian Journal of Geology, 2005, 85(1/2):63-71.
[18] Bozkurt Ç N, Laurent L, Julian S, et al. Efficiency ofa Faulted Regional Top Seal, Lakes Entrance Formation, Gippsland Basin, SE Australia[J]. Petroleum Geoscience, 2014, 20:241-256.
[19] 付广,王浩然,胡欣蕾. 断层垂向封闭的断-储排替压力差法及其应用[J]. 石油学报, 2014, 35(4):687-691. Fu Guang, Wang Haoran, Hu Xinlei. Modification and Application of Fault-Reservoir Displacement Pressure Differential Method for Vertical Sealing of Faults[J]. Acta Petrolei Sinica, 2014, 35(4):687-691.
[20] 付广,陈章明,姜振学. 盖层物性封闭能力的研究方法[J]. 中国海上油气, 1995, 9(2):83-88. Fu Guang, Chen Zhangming, Jiang Zhenxue. Research Method on Capillary Sealing Ability of Caprocks[J]. China Offshore Oil and Gas, 1995, 9(2):83-88.
[21] 张立宽,罗晓容,宋国奇,等. 油气运移过程中断层启闭性的量化表征参数评价[J]. 石油学报, 2013, 34(1):92-100. Zhang Likuan, Luo Xiaorong, Song Guoqi, et al.Quantitative Evaluation of Parameters to Characterize Fault Opening and Sealing during Hydrocarbon Migration[J]. Acta Petrolei Sinica, 2013, 34(1):92-100.
[22] 席道瑛,陈林. 岩石各向异性参数研究[J]. 物探化探计算技术, 1994(1):16-21. Xi Daoying, Chen Lin. On Anisotropismof Rock in Geophysics[J]. Computing Techniques for Geophysical and Geochemical Exploration, 1994(1):16-21.
[23] 吕延防,陈章明,付广,等. 盖岩排替压力研究[J]. 大庆石油学院学报, 1993, 17(4):1-7. Lü Yanfang, Chen Zhangming, Fu Guang, et al. Research on the Displacement Pressure of Caprock[J]. Journal of Daqing Petroleum Institute, 1993, 17(4):1-7.
[24] 黄志龙,郝石生. 盖层突破压力及排替压力的求取方法[J]. 新疆石油地质, 1994, 15(2):163-166. Huang Zhilong, Hao Shisheng.A Method of Estimating Breakthrough Pressure and Displacement Pressure of Caprock[J]. Xinjiang Petroleum Geology, 1994, 15(2):163-166.
[25] 付晓飞,方德庆,吕延防,等. 从断裂带内部出发评价断层垂向封闭性的方法[J]. 地球科学:中国地质大学学报, 2005, 30(3):328-336. Fu Xiaofei, Fang Deqing, Lü Yanfang, et al. Method of Evaluating Vertical Sealing of Faults in Terms of the Internal Structure of Fault Zones[J]. Earth Science:Journal of China University of Geosciences, 2005, 30(3):328-336.
[26] 王思琦,鲜本忠,万锦峰, 等. 南堡凹陷滩海地区东营组和沙河街组一段储层特征及其成因机制[J]. 东北石油大学学报, 2015, 39(4):54-62. Wang Siqi, Xian Benzhong, Wan Jinfeng, et al.Reservoir Characteristics and Controlling Factors in the Offshore Areas, the Eocene Period of the Nanpu Sag[J]. Journal of Northeast Petroleum University, 2015, 39(4):54-62.
[27] 刘之的,杨双定,刘有霞,等. 南梁油田长4+5储层泥质含量计算方法[J]. 西安石油大学学报(自然科学版), 2015, 30(2):25-29. Liu Zhidi, Yang Shuangding, Liu Youxia, et al. Calculation Method of Shale Content of Chang 4+5 Reservoir in Nanliang Oilfield[J]. Journal of Xi'an Shiyou University(Natural Science Edition), 2015, 30(2):25-29.
[28] 刘畅,陈冬霞,董月霞,等. 断层对南堡凹陷潜山油气藏的控制作用[J]. 石油与天然气地质, 2015, 36(1):43-50. Liu Chang, Chen Dongxia, Dong Yuexia, et al. Control of Faults on Hydrocarbon Accumulation of Buried Hill Reservoirs in the Nanpu Sag,Bohai Bay Basin[J]. Oil & Gas Geology, 2015, 36(1):43-50.
[29] 曹中宏,张红臣,刘国勇,等. 南堡凹陷碳酸盐岩优质储层发育主控因素与分布预测[J]. 石油与天然气地质, 2015, 36(1):103-110. Cao Zhonghong, Zhang Hongchen, Liu Guoyong, et al. Main Control Factors and Distribution Prediction of High-Quality Carbonate Reservoirs in the Nanpu Sag,Bohai Bay Basin[J]. Oil & Gas Geology, 2015, 36(1):103-110.
[30] 柳波,贾梦成,吕延防,等. 南堡凹陷不同相态天然气成因联系及勘探意义[J]. 中国矿业大学学报, 2016, 45(1):101-109. Liu Bo, Jia Mengcheng, Lü Yanfang, et al. Genesis Connections Among Different Phase States of Natural Gas in Nanpu Sag and Their Exploration Significance[J]. Journal of China University of Mining & Technology, 2016, 45(1):101-109.
[31] 吕延防,许辰璐,付广,等. 南堡凹陷中浅层盖-断组合控油模式及有利含油层位预测[J]. 石油与天然气地质, 2014,35(1):86-97. Lü Yanfang, Xu Chenlu, Fu Guang, et al. Oil-Controlling Models of Caprock-Fault Combination and Preidiction of Favorable Horizons for Hydrocarbon Accumulation in Middle-Shallow Sequences of Nanpu Sag[J]. Oil & Gas Geology, 2014,35(1):86-97.
[32] 罗群,庞雄奇. 海南福山凹陷顺向和反向断裂控藏机理及油气聚集模式[J]. 石油学报, 2008, 29(3):363-367. Luo Qun, Pang Xiongqi. Reservoir Controlling Mechanism and Petroleum Accumulation Model for Consequent Fault and Antithetic Fault in Fushan Depression of Hainan area[J]. Acta Petrolei Sinica, 2008, 29(3):363-367.
[33] 韦丹宁,付广. 反向断裂下盘较顺向断裂上盘更易富集油气机理的定量解释[J]. 吉林大学学报(地球科学版), 2016, 46(3):702-710. Wei Danning, Fu Guang. Quantitative Explanation of Mechanism About Lower Wall of Antithetic Faults Accumulating More Oil-Gas than Upper Wall of Consequent Faults[J]. Journal of Jilin University (Earth Science Edition), 2016, 46(3):702-710.
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