Properties of mud cake associated with silica shale powder intrusion into drilling fluid

Authors

MO Dingqiang, School of Geosciences and Information Physics, Central South University, Changsha 410083, China; Key Laboratory of Metallogenic Prediction and Geoenvironmental Monitoring of the Ministry of Education, Changsha 410083, China
SUN Pinghe, School of Geosciences and Information Physics, Central South University, Changsha 410083, China; Key Laboratory of Metallogenic Prediction and Geoenvironmental Monitoring of the Ministry of Education, Changsha 410083, China; Arizona State University, Tempe 85282, USAFollow
ZHAO Binkui, School of Geosciences and Information Physics, Central South University, Changsha 410083, China; Key Laboratory of Metallogenic Prediction and Geoenvironmental Monitoring of the Ministry of Education, Changsha 410083, China
WANG Jingyuan, School of Geosciences and Information Physics, Central South University, Changsha 410083, China; Key Laboratory of Metallogenic Prediction and Geoenvironmental Monitoring of the Ministry of Education, Changsha 410083, China
ZHANG Shaohe, School of Geosciences and Information Physics, Central South University, Changsha 410083, China; Key Laboratory of Metallogenic Prediction and Geoenvironmental Monitoring of the Ministry of Education, Changsha 410083, China
CAO Han, School of Geosciences and Information Physics, Central South University, Changsha 410083, China; Key Laboratory of Metallogenic Prediction and Geoenvironmental Monitoring of the Ministry of Education, Changsha 410083, China; Arizona State University, Tempe 85282, USA

Abstract

Drilling fluid is very important for maintaining the stability of the hole wall in shale drilling. The mud cake formed by the fluid loss also plays a decisive role in protecting the reservoir. In order to study the influence of shale rock powder intrusion into low-solid-phase drilling fluids on the basic properties of mud cakes, the paper selects the siliceous shale powders in northwestern Hunan as the research object, and designs orthogonal experiments. In addition, the test results are analyzed using variance and range, which show that the content of rock powder is the main factor affecting the thickness of the cake. Besides, the main factors influencing the toughness of the cake are rolling time and the powder gradation. The mass fraction of 6% of the 200 mesh rock powder forms the thinnest mud cake after the rolling 6 hours. When the rock powder with a particle size of 150 mesh has a mass fraction of 6%, the toughness of the mud cake formed after rolling for 12 hours are the maximum. For the rock powder with a gradation of (200+100) mesh, the rock powder with 2% mass fraction forms the thinnest mud after rolling for 24 hours. When the gradation is (200+150) mesh, the rock powder with 4% mass fraction forms the greatest toughness of mud cake after rolling for 12 hours. The conclusion of the study has positive significance for the solid-phase control of the drilling fluid.

Keywords

northwest Hunan, shale gas, orthogonal design, drilling fluid, mud cake

DOI

10.3969/j.issn.1001-1986.2019.02.031

Recommended Citation

MO Dingqiang, SUN Pinghe, ZHAO Binkui, et al. (2019) "Properties of mud cake associated with silica shale powder intrusion into drilling fluid," Coal Geology & Exploration: Vol. 47: Iss. 2, Article 32.
DOI: 10.3969/j.issn.1001-1986.2019.02.031
Available at: https://cge.researchcommons.org/journal/vol47/iss2/32

Reference

[1] 高莉,张弘,蒋官澄,等. 鄂尔多斯盆地延长组页岩气井壁稳定钻井液[J]. 断块油气田,2013,20(4):508-512. GAO Li,ZHANG Hong,JIANG Guancheng,et al. Drilling fluid for wellbore stability of shale gas in Yanchang Formation,Ordos basin[J]. Fault-Block Oil & Gas Field,2013,20(4):508-512.

[2] SCHLEMMER R,FRIEDHEIM J E,GROWCOCK F B,et al. Chemical osmosis,shale,and drilling fluids[J]. SPE Drilling & Completion,2003,18(4):318-331.

[3] 范宜仁,胡云云,李虎,等. 泥饼动态生长与泥浆侵入模拟研究[J]. 测井技术,2013,37(5):11-13. FAN Yiren,HU Yunyun,LI Hu,et al. Numerical simulation of mud-cake dynamic formation and reservoir mud filtrate invasion[J]. Well Logging Technology,2013,37(5):11-13.

[4] 黄立新,王昌军,罗春芝,等. 油气层保护与内外泥饼关系的实验研究[J]. 断块煤气田,2000,7(6):24-26. HUANG Lixin,WANG Changjun,LUO Chunzhi,et al. The laboratory study of relationship between reservoir pro-tection and drilling fluid cake[J]. Fault-Block Oil & Gas Field,2000,7(6):24-26.

[5] 王平全,敬玉娟,彭真,等. 针对页岩气井钻井液的新型滤失造壁性能评价方法[J]. 钻井液与完井液,2017,34(2):51-56. WANG Pingquan,JING Yujuan,PENG Zhen,et al. New method for evaluating filtration and mud cake building performance of drilling fluid for shale drilling[J]. Drilling Fluid & Completion Fluid,2017,34(2):51-56.

[6] 黄维安,邱正松,岳星辰,等. 页岩气储层损害机制及保护水基钻完井液技术[J]. 中国石油大学学报(自然科学版),2014,38(3):99-105. HUANG Wei'an,QIU Zhengsong,YUE Xingchen,et al. Damage mechanism and water-based drilling fluid protection technology for shale gas reservoir[J]. Journal of China University of Petroleum,2014,38(3):99-105.

[7] 陈德飞,康毅力,李相臣,等. 煤层气钻井过程中钻井液对煤岩储层损害评价[J]. 煤田地质与勘探,2014,42(6):44-49. CHEN Defei,KANG Yili,LI Xiangchen,et al. Evaluation of reservoir damage caused by drilling fluid[J]. Coal Geology & Exploration,2014,42(6):44-49.

[8] GU Jun,HUANG Ju,ZHANG Su,et al. Solidifying mud cake to improve cementing quality of shale gas well:A case study[J]. Open Fuels & Energy Science Journal,2015,8(1):149-154.

[9] 杨宝林,顾军,郑涛,等. 泥饼厚度对固井二界面胶结强度的影响[J]. 钻井液与完井液,2009,26(1):42-43. YANG Baolin,GU Jun,ZHENG Tao,et al. the influences of mud cake thickness on bonding strength of the cement-formation interface[J]. Drilling Fluid & Completion Fluid,2009,26(1):42-43.

[10] 王平全,马瑞. 泥饼质量的影响因素研究[J]. 钻井液与完井液,2012,29(5):21-25. WANG Pingquan,MA Rui. Research on influential factors of mud cake quality[J]. Drilling Fluid & Completion Fluid,2012,29(5):21-25.

[11] FATTAH K A,LASHIN A. Investigation of mud density and weighting materials effect on drilling fluid filter cake proper-ties and formation damage[J]. Journal of African Earth Sciences,2016,117:345-357.

[12] 王志龙,杨龙龙,罗跃,等. 钻屑和黏土对重泥浆流变性能的影响及筛网目数在固相控制中的作用[J]. 化学工程师,2014,2(1):9-12. WANG Zhilong,YANG Longlong,LUO Yue,et al. Effects of drilling cuttings and bentonite clay on rheological properties of high density drilling fluid and mesh number impact on solid phase control[J]. Chemical Engineer,2014,2(1):9-12.

[13] 王剑波,莫军,熊跃,等. 钻井液组分对泥饼抗剪强度的影响[J]. 钻井液与完井液,2015,32(3):65-69. WANG Jianbo,MO Jun,XIONG Yue,et al. Effect of composition of drilling fluid on filter cake shear strength[J]. Drilling Fluid & Completion Fluid,2015,32(3):65-69.

[14] 王利中,王凤春. 浅谈厄瓜多尔钻井固控处理技术[J]. 西部探矿工程,2017,29(7):56-58. WANG Lizhong,WANG Fengchun. On Ecuador's drilling solid control technology[J]. Western Exploration En-gineering,2017, 29(7):56-58.

[15] 田明锦,曹函,孙平贺,等. 离子稳定剂ENI对湘西北页岩气储层护壁机理的初探[J]. 煤田地质与勘探,2018,46(3):168-173. TIAN Mingjin,CAO Han,SUN Pinghe,et al. Preliminary study on borehole wall protection mechanism of ionic stabilizer ENI for shale gas reservoir in northwestern Hunan[J]. Coal Geology & Exploration,2018,46(3):168-173.

[16] 张晓静,乌效鸣,蔡记华,等. LG植物胶泥浆在煤田复杂地层钻探中的应用研究[J]. 探矿工程(岩土钻掘工程),2006,33(12):42-49. ZHANG Xiaojing,WU Xiaoming,CAI Jihua,et al. Applying study on LG plant glue drilling mud for drilling in complicated coalfield strata[J]. Exploration Engineering(Rock & Soil Drilling and Tunneling),2006,33(12):42-49.

[17] 董洪栋,朱金勇,陈礼仪,等. 复杂地层低密度钻井液研究与应用[J]. 煤田地质与勘探,2017,45(1):168-172. DONG Hongdong,ZHU Jinyong,CHEN Liyi,et al. Research and application of low-density drilling fluid for complex formation[J]. Coal Geology & Exploration,2017,45(1):168-172.

[18] 周风山,王世虎,李继勇,等. 泥饼结构物理模型与数学模型研究[J]. 钻井液与完井液,2003,20(3):4-8. ZHOU Fengshan,WANG Shihu,LI Jiyong,et al. Mathematical & physical models for drilling fluid filter cake[J]. Drilling Fluid & Completion Fluid,2003,20(3):4-8.

[19] 侯化国,王玉民. 正交试验法[M]. 长春:吉林人民出版社,1985.