Analysis of bit balling and application of the balling-preventing drilling fluid in well Songke-2

Authors

HU Yule, School of Engineering, China University of Geosciences(Wuhan), Wuhan 430074, China
HU Chen, CAGS, Beijing 100000, ChinaFollow
ZHANG Hengchun, Institute of Exploration Techniques, CAGS, Langfang 065000, China
ZHENG Wenlong, School of Engineering, China University of Geosciences(Wuhan), Wuhan 430074, China

Abstract

In order to solve the problem of the high mud content and easy hydration and dispersion of the Cretaceous sedimentary strata in well Songke-2, the bit balling is prone to occur in the water-based drilling fluid environment, which affects the drill bit ROP and induces downhole adhesion stuck, the paper combined the core drilling technology of well Songke-2, systematically analyzed of the causes of bit balling generated by the drill bit in the mudstone and water-based drilling fluid environment, provided a basis for the design of the anti-balling of the drill bit and the formulation of the anti-ball in drilling fluid, and proposed a drilling fluid formulation with excellent anti-balling performance. The results show that the mudstone drilled in well Songke-2 had the characteristics of high shale content and easy hydration and viscosity, it is very easy to induce the bit balling caused by the adhesion of cuttings and the mechanical “inlaying” of cuttings. Mechanical adhesion of drill bit and drill structure size, bottom hole hydraulic condition, bit material and surface condition, drilling procedure parameters and drilling fluid performance indicators are closely related. Adjusting the performance of the drilling fluid is an effective way to solve the bit balling problem at the drilling site. According to the technical characteristics of the high-temperature and high-pressure sections in the fourth opening of the well Songke-2,after repeated matching, the drilling fluid composition with excellent high temperature resistance and anti-adhesion performance was obtained. The test results of high temperature inhibition, water loss wall-building and the lubricity show that this drilling fluid has strong inhibition at high temperature(230℃), little water loss and good lubricity, it can solve the bit balling problem of the well Songke-2, effectively avoid the instability of the ROP and the occurrence of sticking stuck, the field application effect is ideal.

Keywords

well Songke-2, mudstone, bit balling, drilling fluid, ROP, adhesion

DOI

10.3969/j.issn.1001-1986.2020.05.032

Recommended Citation

HU Yule, HU Chen, ZHANG Hengchun, et al. (2020) "Analysis of bit balling and application of the balling-preventing drilling fluid in well Songke-2," Coal Geology & Exploration: Vol. 48: Iss. 5, Article 33.
DOI: 10.3969/j.issn.1001-1986.2020.05.032
Available at: https://cge.researchcommons.org/journal/vol48/iss5/33

Reference

[1] 李立鑫,张丰琰,张恒春,等. 深井复合钻柱技术在特深科学钻探中的应用探讨[J]. 中国地质,2019,46(5):1200-1208. LI Lixin,ZHANG Fengyan,ZHANG Hengchun,et al. A discussion on deep-well combined drill string technology for ultra-deep drilling project[J]. Geology in China,2019,46(5):1200-1208.

[2] 郑文龙,乌效鸣,朱永宜,等. 松科2井特殊钻进工艺下钻井液技术[J]. 石油钻采工艺,2015,37(3):32-35. ZHENG Wenlong,WU Xiaoming,ZHU Yongyi,et al. Drilling fluid technique for special drilling technology in SK-2 well[J]. Oil Drilling & Production Technology,2015,37(3):32-35.

[3] 许洁,朱永宜,乌效鸣,等. 松科二井取心钻进高温钻井液技术[J]. 中国地质,2019,46(5):1184-1193. XU Jie,ZHU Yongyi,WU Xiaoming,et al. High-temperature core drilling fluid technology of well Songke-2[J]. Geology in China,2019,46(5):1184-1193.

[4] 陈修平,邹德永. PDC钻头泥页岩地层钻进泥包机理及对策研究进展[J]. 天然气工业,2014,34(2):87-91. CHEN Xiuping,ZOU Deyong. Bit balling mechanism and research progress in countermeasures for PDC bit drilling in mud shale formations[J]. Natural Gas Industry,2014,34(2):87-91.

[5] 胡郁乐,刘乃鹏,汪伟,等. 松科二井高温高压随钻测温技术的应用研究[J]. 中国地质,2019,46(5):1193-1199. HU Yule,LIU Naipeng,WANG Wei,et al. Research and application of high temperature and high pressure while drilling temperature measurement technology in well Songke-2[J]. Geology in China,2019,46(5):1193-1199.

[6] 赵建. PDC钻头泥包机理及防治方法研究[D]. 东营:中国石油大学(华东),2015. ZHAO Jian. Research on mechanism and prevention method of PDC bit balling[D]. Dongying:China University of Petroleum(East China),2015.

[7] 孟庆鸿,张恒春,胡郁乐,等. 防泥包钻头的优化设计与应用[J]. 煤田地质与勘探,2011,39(1):71-73. MENG Qinghong,ZHANG Hengchun,HU Yule,et al. Optimum design and application of balling-preventing bit[J]. Coal Geology & Exploration,2011,39(1):71-73.

[8] 侯贺晟,王成善,张交东,等. 松辽盆地大陆深部科学钻探地球科学研究进展[J]. 中国地质,2018,45(4):641-657. HOU Hesheng,WANG Chengshan,ZHANG Jiaodong,et al. Deep continental scientific drilling engineering in Songliao basin:Resource discovery and progress in earth science research[J]. Geology in China,2018,45(4):641-657.

[9] 徐建飞. 泥页岩新型防泥包PDC钻头设计及应用[J]. 石油机械,2014,42(8):12-16. XU Jianfei. Design and application of new anti-balling PDC bits for shale[J]. China Petroleum Machinery,2014,42(8):12-16.

[10] 柴喜元,雷泽勇,刘晓阳,等. 小口径深孔绳索取心钻探用泥浆泵性能参数计算[J]. 地质装备,2018,19(4):7-11. CHAI Xiyuan,LEI Zeyong,LIU Xiaoyang,et al. Calculation of performance parameters of mud pump for small diameter deep hole rope core drilling[J]. Geological Equipment,2018,19(4):7-11.

[11] 于建峰. PDC钻头泥包处理措施及新型防泥包钻头[J]. 江汉石油职工大学学报,2013,26(4):46-48. YU Jianfeng. On measures for treating PDC bit balling and new type of bits against balling-up[J]. Journal of Jianghan Petroleum University of Staff and Workers,2013,26(4):46-48.

[12] 赵佩华,朱春启. PDC钻头的水力设计和轮廓是减少泥包的关键[J]. 国外石油机械,1997,8(5):8-14. ZHAO Peihua,ZHU Chunqi. The hydraulic design and contour of the PDC bit are the key to reducing mud packs[J]. Foreign Petroleum Machinery,1997,8(5):8-14.

[13] 孙吉伟,沈立娜,杨甘生,等. 孕镶金刚石钻头的局部体积破碎研究[J]. 煤田地质与勘探,2019,47(5):232-238. SUN Jiwei,SHEN Lina,YANG Gansheng,et al. Study on local volume breakage of diamond-impregnated bit[J]. Coal Geology & Exploration,2019,47(5):232-238.

[14] 赵建,邹德永,陈修平,等. PDC钻头材料表面泥岩岩屑黏附性能试验研究[J]. 石油机械,2015,43(2):5-8. ZHAO Jian,ZOU Deyong,CHEN Xiuping,et al. Experimental research on the adhesion of shale cuttings to PDC bit surfaces[J]. China Petroleum Machinery,2015,43(2):5-8.

[15] 张宝鑫,傅雪海,张庆辉,等. 煤系泥页岩吸附性及其影响因素[J]. 煤田地质与勘探,2019,47(1):56-63. ZHANG Baoxin,FU Xuehai,ZHANG Qinghui,et al. Adsor­bability of shale in coal measures and its influencing factors[J]. Coal Geology & Exploration,2019,47(1):56-63.

[16] 居培,王传留. 新型锥形PDC齿犁削破岩理论研究[J]. 煤田地质与勘探,2019,47(2):212-216. JU Pei,WANG Chuanliu. Theoretical research on the ploughing rock breaking properties of new conical PDC cutter[J]. Coal Geology & Exploration,2019,47(2):212-216.

[17] 王镇全,周悦辉. PDC钻头切削齿切削角度对破岩效果影响规律的研究[J]. 煤矿机械,2009,30(8):49-51. WANG Zhenquan,ZHOU Yuehui. Study on rock breaking regulation in optimizing cutting angle of PDC bit[J]. Coal Mine Machinery,2009,30(8):49-51.

[18] 方俊,鄢泰宁,李田军. 双层水口超高胎体金刚石钻头孔底磨损过程分析[J]. 煤田地质与勘探,2011,39(1):74-77. FANG Jun,YAN Taining,LI Tianjun. Structure optimization and down-hole process of diamond bit with double-layer waterways and ultra-high matrix[J]. Coal Geology & Exploration,2011,39(1):74-77.

[19] 王传留,孙友宏,刘宝昌,等. 仿生耦合孕镶金刚石钻头的试验及碎岩机理分析[J]. 中南大学学报(自然科学版),2011,42(5):1321-1325. WANG Chuanliu,SUN Youhong,LIU Baochang,et al. Experiment and rock fragmentation mechanism of bionic coupling impregnated diamond bit[J]. Journal of Central South University(Science and Technology),2011,42(5):1321-1325.

[20] 孙友宏,高科,张丽君,等. 耦合仿生孕镶金刚石钻头高效耐磨机理[J]. 吉林大学学报(地球科学版),2012,42(增刊3):220−225. SUN Youhong,GAO Ke,ZHANG Lijun,et al. High drilling efficiency and wear-resistant mechanism of coupling bionics impregnated diamond bit[J]. Journal of Jilin University(Earth Science Edition),2012,42(Sup.3):220-225.

[21] 李恒,何世明,汤明,等. 塔里木盆地深部煤层失稳机理及防塌钻井液技术[J]. 煤田地质与勘探,2019,47(4):212-218. LI Heng,HE Shiming,TANG Ming,et al. Instability mechanism and anti-sloughing drilling fluid technique for deep coal seam of Tarim basin[J]. Coal Geology & Exploration,2019,47(4):212-218.

[22] 莫定强,孙平贺,赵斌魁,等. 硅质页岩岩粉侵入钻井液体系中泥饼性能研究[J]. 煤田地质与勘探,2019,47(2):200-206. MO Dingqiang,SUN Pinghe,ZHAO Binkui,et al. Properties of mud cake associated with silica shale powder intrusion into drilling fluid[J]. Coal Geology & Exploration,2019,47(2):200-206.

[23] 刘晓栋,王宇宾,宋有胜,等. 活性泥页岩钻井液技术研究与应用[C]//中国石油学会石油科技装备专业委员会. 钻井液完井液技术研讨会论文集. 2011:224-232. LIU Xiaodong,WANG Yubin,SONG Yousheng,et al. Research and application of active mud shale drilling fluid technology[C]//Petroleum Technology Equipment Professional Committee of China Petroleum Society. Symposium on drilling and completion fluids. 2011:224-232.

[24] 黄进军,李文飞,陈辛未,等. 封堵用超细碳酸钙与超细二氧化硅分散性研究[J]. 材料科学与工艺, 2017,25(3):35-40. HUANG Jinjun,LI Wenfei,CHEN Xinwei,et al. Comparative study of drilling fluid dispersion of ultrafine SiO₂ and ultrafine CaCO₃[J]. Materials Science & Technology,2017,25(3):35-40.

[25] 黄聿铭. 适于松科2井深部取心钻进的超高温聚磺钻井液室内研究[D]. 北京:中国地质大学(北京),2017. HUANG Yuming. Study on ultra-high temperature poly-sulfonate drilling fluid for deep coring drilling in Well Songke-2[D]. Beijing:China University of Geosciences (Beijing),2017.

[26] 许洁,乌效鸣,王稳石,等. 松科2井抗超高温钻井液技术[J]. 钻井液与完井液,2018,35(2):29-34. XU Jie,WU Xiaoming,WANG Wenshi,et al. Ultra-high temperature drilling fluid technology of well Songke-2[J]. Drilling Fluid & Completion Fluid,2018,35(2):29-34.