Fractal Characteristics of Fracture of Xujiahe Formation in Fault-fold Belt of Central Yuanba Area

doi:10.11885/j.issn.1674-5086.2016.03.08.02

Abstract

Abstract: Fractures in the rock masses of the Xujiahe Formation in the fault-fold belt of the central Yuanba area of the Sichuan Basin are characterized by good self-similarity and fractal characteristics that are attributed to the tectonic stress field. Thus, this research is conducted with respect to the fractal characteristics of fault developments in the Xujiahe Formation, as well as factures in the rock core. The box-covering method was employed in this study to derive the fractal dimension values of faults and fractures. Further, using the fracture density in the core, mathematical formulae were adopted to fit the capacity dimensions of faults in each sub-area, as well as factures in the rock core, where the quantitative relation thereof was established. In this manner, the favorable fracture development zone of the Xujiahe Formation in the fault-fold belt of the central Yuanba area of the Sichuan Basin is obtained. The results show that the areas where the fractal dimension value of fractures in the Xujiahe Formation exceeds 1.45 belong to the fracture development zones, which are characterized by a high level of oil and gas enrichment and accumulation. The areas with fractal dimension values ranging from 0.95 to 1.45 are the relatively developed fracture zones, while areas with less than 0.95 are underdeveloped fracture zones.

Key words: fractures, fault, fractal characteristics, Xujiahe Formation, central Yuanba area

CLC Number:

TE132

FAN Cunhui, TAO Jiali, ZHOU Kun, HU Feng, HUANG Wei. Fractal Characteristics of Fracture of Xujiahe Formation in Fault-fold Belt of Central Yuanba Area[J]. 西南石油大学学报(自然科学版), 2017, 39(1): 35-42.

0
/ / Recommend

Add to citation manager EndNote|Ris|BibTeX

URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.11885/j.issn.1674-5086.2016.03.08.02

http://journal15.magtechjournal.com/Jwk_xnzk/EN/Y2017/V39/I1/35

References

[1] 李跃纲,巩磊,曾联波,等. 四川盆地九龙山构造致密砾岩储层裂缝特征及其贡献[J]. 天然气工业, 2012, 32(1):22-26. doi:10.3787/j.issn.1000-0976.2012.01.004 LI Yuegang, GONG Lei, ZENG Lianbo, et al. Characteristics of fractures and their contribution to the deliverability of tight conglomerate reservoirs in the Jiulongshan Structure, Sichuan Basin[J]. Natural Gas Industry, 2012, 32(1):22-26. doi:10.3787/j.issn.1000-0976.2012.01.004
[2] 王珂,张荣虎,戴俊生,等. 低渗透储层裂缝研究进展[J]. 地球科学与环境学报, 2015, 37(2):44-58. doi:10.3969/j.issn.1672-6561.2015.02.006 WANG Ke, ZHANG Ronghu, DAI Junsheng, et al. Review on low-permeability reservoir fracture[J]. Journal of Earth Sciences and Environment, 2015, 37(2):44-58. doi:10.3969/j.issn.1672-6561.2015.02.006
[3] 唐永,梅廉夫,唐文军,等. 裂缝性储层属性分析与随机模拟[J]. 西南石油大学学报(自然科学版), 2010, 32(4):56-66. doi:10.3863/j.issn.1674-5086.2010.04.011 TANG Yong, MEI Lianfu, TANG Wenjun, et al. Property analysis and stochastic modelling of fractured reservoirs[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2010, 32(4):56-66. doi:10.3863/j.issn.1674-5086.2010.04.011
[4] MANDELBORT B B. The fractal geometry of nature[M]. San Francisco:W. H. Freeman & Co., 1982.
[5] SCHOLZ C H, AVILES C A. Fractal dimension of the 1906 San Andreas fault and 1915 Pleasant Valley faults (abstract)[J]. Earth Quakes Notes, 1985, 56:20.
[6] 苏玉平,吕延防,付晓飞,等. 分形理论在贝尔凹陷基岩潜山裂缝预测中的应用[J]. 吉林大学学报(地球科学版),2006,36(4):563-569. doi:10.3969/j.issn.1671-5888.2006.04.011 SU Yuping, LÜ Yanfang, FU Xiaofei, et al. Application of fractal theory on the fracture prediction in the buried hill of bed rock in Beier Depression[J]. Journal of Jilin University (Earth Science Edition), 2006, 36(4):563-569. doi:10.3969/j.issn.1671-5888.2006.04.011
[7] 周廷全,陈俊侠. 济阳坳陷桩西古潜山储层裂缝的分形特征[J]. 中国石油大学学报(自然科学版), 2011, 35(5):1-5, 13. doi:10.3969/j.issn.1673-5005.2011.05.001 ZHOU Tingquan, CHEN Junxia. Fractal characteristics of fracture in Zhuangxi buried-hill reservoir, Jiyang Depression[J]. Journal of China University of Petroleum, 2011, 35(5):1-5, 13. doi:10.3969/j.issn.1673-5005.2011.05.001
[8] 范存辉,郭彤楼,王本强,等. 四川盆地元坝中部地区须家河组储层裂缝发育特征及控制因素[J]. 油气地质与采收率, 2013, 20(5):52-54. doi:10.3969/j.issn.1009-9603.2013.05.012 FAN Cunhui, GUO Tonglou, WANG Benqiang, et al. Characteristics and controlling factors of reservoir fractures in Xujiahe Formation, central Yuanba of Sichuan Basin[J]. Petroleum Geology and Recovery Efficiency, 2013, 20(5):52-54. doi:10.3969/j.issn.1009-9603.2013.05.012
[9] 王杰,秦建中,刘文汇,等. 川东北元坝地区中生代构造与动态热演化史-磷灰石、锆石(U-Th)/He定年分析[J]. 石油实验地质, 2012, 34(1):19-24. doi:10.3969/j.issn.1001-6112.2012.01.004 WANG Jie, QIN Jianzhong, LIU Wenhui, et al. Mesozoic tectonics and dynamic thermal history inYuanba area of northeastern Sichuan Basin:Application of (U-Th)/He dating of apatite and zircon[J]. Petroleum Geology & Experiment, 2012, 34(1):19-24. doi:10.3969/j.issn.1001-6112.2012.01.004
[10] 周英杰,张敬轩,杜玉山,等. 埕北-30-潜山岩心裂缝的分维数及与裂缝密度的关系[J]. 油气地质与采收率,2004,11(3):19-21. doi:10.3969/j.issn.1009-9603.2004.03.007 ZHOU Yingjie, ZHANG Jingxuan, DU Yushan, et al. Fractal dimension of core fractures in Chengbei 30 buried hill reservoir and its relation to fracture density[J]. Petroleum Geology and Recovery Efficiency, 2004, 11(3):19-21. doi:10.3969/j.issn.1009-9603.2004.03.007
[11] 何光明,高如曾. 分形理论在裂缝预测中的尝试[J]. 石油物探, 1993, 32(2):11-13. HE Guangming, GAO Ruzeng. Fracture prediction based on fractal theory[J]. Geophysical Prospecting for Petroleum, 1993, 32(2):1-13.
[12] 隋少强,宋丽红,李淑敏. 分形理论在储集层横向预测和油气层判断中的应用[J]. 新疆石油地质, 2001, 22(4):342-344. doi:10.3969/j.issn.1001-3873.2001.04.024 SUI Shaoqiang, SONG Lihong, LI Shumin. The application of fractal theory in lateral prediction of reservoir and hydrocarbon diagenesis[J]. Xinjiang Petroleum Geology, 2001, 22(4):342-344. doi:10.3969/j.issn.1001-3873.2001.04.024
[13] 曾联波,金之钧,李京昌,等. 柴达木盆地北缘断裂构造分形特征与油气分布关系研究[J]. 地质科学, 2001, 36(2):241-247. doi:10.3321/j.issn:0563-5020.2001.02.013 ZENG Lianbo, JIN Zhijun, LI Jingchang, et al. Fractal characteristics of fractural structures and its relation to oilgas distribution in North Qaidam Basin[J]. Chinese Journal of Geology, 2001, 36(2):241-247. doi:10.3321/j.issn:0563-5020.2001.02.013
[14] 张吉昌,田国清,刘建中. 储层构造裂缝的分形分析[J]. 石油勘探与开发, 1996, 23(4):65-67. ZHANG Jichang, TIAN Guoqing, LIU Jianzhong. A fractal analysis on structural fractures of reservoirs[J]. Petroleum Exploration and Development, 1996, 23(4):65-67.
[15] 胡春明,周海强,李红,等. 断裂分形理论的应用[J]. 大庆石油地质与开发,2005,23(6):11-12. doi:10.3969/j.issn.1000-3754.2004.06.005 HU Chunming, ZHOU Haiqiang, LI Hong, et al. Application of fault fractal theory[J]. Petroleum Geology & Oilfield Development in Daqing, 2005, 23(6):11-12. doi:10.3969/j.issn.1000-3754.2004.06.005
[16] 徐兵. 塔里木盆地塔中地区断裂分形特征[J]. 油气地质与采收率, 2007, 14(4):35-37. doi:10.3969/j.issn.1009-9603.2007.04.010 XU Bing. Fractal analysis of fault system in Tazhong area, Tarim Basin[J]. Petroleum Geology and Recovery Efficiency, 2007, 14(4):35-37. doi:10.3969/j.issn.1009-9603.2007.04.010
[17] 徐亚军,杨坤光,马乾. 冀东南堡凹陷断裂系统分形研究[J]. 天然气地球科学, 2004, 15(6):619-621. doi:10.3969/j.issn.1672-1926.2004.06.012 XU Yajun, YANG Kunguang, MA Qian. Study on fractal of faults system in the Nanpu sag[J]. Natural Gas Geoscience, 2004, 15(6):619-621. doi:10.3969/j.issn.1672-1926.2004.06.012
[18] 刘敬寿,戴俊生,王硕,等. 断层容量维、信息维与数值模拟预测裂缝对比[J]. 新疆石油地质, 2015, 36(2):222-227. doi:10.7657/XJPG20150219 LIU Jingshou, DAI Junsheng, WANG Shuo, et al. Comparisons of fault capacity dimension and information dimension with numerical simulation in fracture prediction[J]. Xinjiang Petroleum Geology, 2015, 36(2):222-227. doi:10.7657/XJPG20150219
[19] 武昱东,琚宜文,侯泉林,等. 断层分层信息维及其在深部煤炭开采地质条件预测中的应用[J]. 煤炭学报, 2010, 35(8):1323-1330. WU Yudong, JU Yiwen, HOU Quanlin, et al. Application of fault's information dimensions among mboxdifferent coal seams in the prediction of deep coal resources exploitation[J]. Journal of China Coal Society, 2010, 35(8):1323-1330.
[20] 赵力彬,戴俊生,孙勇,等. 分形几何方法在克拉2气田裂缝预测中的应用[J]. 新疆石油地质, 2012, 33(5):595-598. ZHAO Libin, DAI Junsheng, SUN Yong, et al. Application of fractal geometry method for prediction of fractures in Kela2 Gas Field of Tarim Basin[J]. Xinjiang Petroleum Geology, 2012, 33(5):595-598.
[21] 李玮,闫铁,毕雪亮. 基于分形方法的水力压裂裂缝起裂扩展机理[J]. 中国石油大学学报(自然科学版), 2008, 32(5):87-91. doi:10.3321/j.issn:1673-5005.2008.05.018 LI Wei, YAN Tie, BI Xueliang. Mechanism of hydraulically created fracture breakdown and propagation based on fractal method[J]. Journal of China University of Petroleum (Natural Science Edition), 2008, 32(5):87-91. doi:10.3321/j.issn:1673-5005.2008.05.018