Development and deepening of profitable development of tight glutenite oil reservoirs in Xinjiang oilfield:application of geology-engineering integration in Mahu area and its enlightenment

doi:10.3969/j.issn.1672-7703.2018.02.003

Abstract

Abstract: The Junggar Basin in Xinjiang is the important onshore oil and gas accumulation site in China and its tight oil and gas potential is enormous, but its development is faced with multiple challenges, such as complicated geological condition, high engineering difficulty and high cost. The concept of geology-engineering integration was applied to focus on researching the development of tight oil reservoirs in Mahu area so as to increase its development benefit. To cope with the challenges in the process of well drilling and completion, the geological cognition and engineering practice were combined closely by taking a series of measures, e.g. establishing fine geological model and rock mechanics model, optimizing drilling tools and drilling fluid systems, conducting geosteering drilling in which adjustment is conducted while drilling, and optimizing the stimulation strategy based on fracturing simulation and experimental results. It is indicated that tight oil and gas in Mahu area can be profitably developed by drilling horizontal wells and conducting stimulated reservoir volume (SRV). The drilling ratio of horizontal wells is vital to the productivity of oil and gas wells. The drilling ratio and drilling efficiency can be improved effectively by means of geosteering drilling under the guidance of fine 3D geological model. Multi-stage SRV strategy in the pattern of division and cutting is suitable for Mahu area and the fracturing parameters of high sand concentration, large fluid volume and high flow rate are adopted. Based on researches, the reservoir quality, drilling quality and completion quality of newly developed wells in Mahu area are improved significantly, the profitable development of tight oil reservoirs are preliminarily broken through, and large-scale development and productivity construction of this block has been launched recently.

Key words: geology-engineering integration, tight oil reservoir, Mahu sag, profitable development

CLC Number:

Du Hongling, Xu Jiangwen, Li Xun, Lu Jun, Zhang Jing, Peng Yongcan, Chen Jin, Wang Lei. Development and deepening of profitable development of tight glutenite oil reservoirs in Xinjiang oilfield:application of geology-engineering integration in Mahu area and its enlightenment[J]. China Petroleum Exploration, 2018, 23(2): 15-26.

References

[1] 马永平,黄林军,滕团余,谭开俊,王国栋,尹路.准噶尔盆地玛湖凹陷斜坡区三叠系百口泉组高精度层序地层研究[J].天然气地球科学,2015,26(增刊1):33-40. Ma Yongping, Huang Linjun, Teng Tuanyu, Tan Kaijun, Wang Guodong, Yi Lu. Study on the high-resolution sequence stratigraphy of Triassic Baikouquan Formation in the slope zone of Mahu depression in the Junggar Basin[J]. Natural Gas Geoscience, 2015,26(Supp.1):33-40.
[2] 匡立春,唐勇,雷德文,吴涛,翟建华.准噶尔盆地玛湖凹陷斜坡区三叠系百口泉组扇控大面积岩性油藏勘探实践[J].中国石油勘探,2014,19(6):14-23. Kuang Lichun, Tang Yong, Lei Dewen, Wu Tao, Zhai Jianhua. Exploration of fan-controlled large-area lithologic oil reservoirs of Triassic Baikouquan Formation in slope zone of Mahu depression in Junggar Basin[J]. China Petroleum Exploration, 2014,19(6):14-23.
[3] 雷德文,陈刚强,刘海磊,李啸,阿布力米提,陶柯宇,等.准噶尔盆地玛湖凹陷大油(气)区形成条件与勘探方向研究[J].地质学报,2017,91(7):1604-1619. Lei Dewen, Chen Gangqiang, Liu Hailei, Li Xiao, Abilimit, Tao Keyu, et al. Study on the forming conditions and exploration fields of the Mahu giant oil (gas) province, Junggar Basin[J]. Acta Geological Sinica, 2017,91(7):1604-1619.
[4] 章敬,罗兆,徐明强,江洪,陈仙江,王腾飞,等.新疆油田致密油地质工程一体化实践与思考[J].中国石油勘探,2017,22(1):12-20. Zhang Jing, Luo Zhao, Xu Mingqiang, Jiang Hong, Chen Xianjiang, Wang Tengfei, et al. Application of geology-engineering integration in development of tight oil in Xinjiang oilfield[J]. China Petroleum Exploration, 2017,22(1):12-20.
[5] 邹才能,朱如凯,吴松涛,杨智,陶士振,袁选俊,等.常规与非常规油气聚集类型、特征、机理及展望——以中国致密油和致密气为例[J].石油学报,2012,33(2):173-187. Zou Caineng, Zhu Rukai, Wu Songtao, Yang Zhi, Tao Shizhen, Yuan Xuanjun, et al. Types, characteristics, genesis and prospects of conventional and unconventional hydrocarbon accumulations:taking tight oil and tight gas in China as an instance[J]. Acta Petrolei Sinica, 2012,33(2):173-187.
[6] 贾承造,邹才能,李建忠,李登华,郑民.中国致密油评价标准、主要类型、基本特征及资源前景[J].石油学报,2012,33(3):343-350. Jia Chengzao, Zou Caineng, Li Jianzhong, Li Denghua, Zheng Min. Assessment criteria,main types,basic features and resource prospects of the tight oil in China[J]. Acta Petrolei Sinica, 2012,33(3):343-350.
[7] 印峰,刘若冰,秦华.也谈致密砂岩气藏的气源——与戴金星院士商榷[J].石油勘探与开发, 2013,40(1):125-128. Yin Feng, Liu Ruobing, Qin Hua. About origin of tight sandstone gas:to discuss with academician Dai Jingxing[J]. Petroleum Exploration and Development, 2013,40(1):125-128.
[8] 李阳.中国石化致密油藏开发面临的机遇与挑战[J].石油钻探技术,2015,43(5):1-6. Li Yang. Opportunities and challenges for sinopec to develop tight oil reservoirs[J]. Petroleum Drilling Techniques, 2015, 43(5):1-6.
[9] 杜金虎,何海清,杨涛,李建忠,黄福喜,郭彬程,等.中国致密油勘探进展及面临的挑战[J].中国石油勘探,2014,19(1):1-9. Du Jinhu, He Haiqing, Yang Tao, Li Jianzhong, Huang Fuxi, Guo Bincheng, et al. Progress in China's tight oil exploration and challenges[J]. China Petroleum Exploration, 2014,19(1):1-9.
[10] 王丽忱,田洪亮,甄鉴,雷启鸿.北美致密油开发现状及经济效益分析[J].石油科技论坛,2014,33(5):56-61. Wang Lichen, Tian Hongliang, Zhen Jian, Lei Qihong. Present conditions of tight oil in North America and analysis of economic performance[J]. Oil Forum, 2014,33(5):56-61.
[11] 戴勇,陈开明,彭景云,李立,韩永刚,杜刚."科研+生产"一体化运作模式探索与实践[J].石油科技论坛,2015,34(2):10-15. Dai Yong, Chen Kaiming, Peng Jingyun, Li Li, Han Yonggang, Du Gang. Integration of technological research and production[J]. Oil Forum, 2015,34(2):10-15
[12] 吴奇,梁兴,鲜成钢,李峋.地质-工程一体化高效开发中国南方海相页岩气[J].中国石油勘探,2015,20(4):1-23. Wu Qi, Liang Xing, Xian Chenggang, Li Xun. Geoscience-to-production integration ensures effective and efficient south China marine shale gas development[J]. China Petroleum Exploration, 2015,20(4):1-23.
[13] 常少英,朱永峰,曹鹏,戴传瑞,刘炜博,闫晓芳.地质工程一体化在剩余油高效挖潜中的实践及效果——以塔里木盆地YM32白云岩油藏为例[J].中国石油勘探,2017,22(1):46-52. Chang Shaoying, Zhu Yongfeng, Cao Peng, Dai Chuanrui, Liu Weibo, Yan Xiaofang. Application of geology-engineering integration in high-efficiency remaining oil potential tapping and its results:a case study on YM32 dolomite oil reservoirs in Tarim Basin[J]. China Petroleum Exploration, 2017,22(1):46-52.
[14] 杨向同,郑子君,张杨,于银华,冯觉勇,王振兰,等.地质工程一体化在应力敏感型致密储层产能预测中的应用——以库车西部某区块为例[J].中国石油勘探,2017,22(01):61-74. Yang Xiangtong, Zheng Zijun, Zhang Yang, Yu Yinhua, Feng Jueyong, Wang Zhenlan, et al. Application of geology-engineering integration in productivity prediction for stress-sensitive tight reservoir:a case study of×block in western Kuqa[J]. China Petroleum Exploration, 2017,22(1):61-74.
[15] 王峰,李兴科,张应安.地质工程一体化在大平台集约化建井中的实践——以吉林油田新立Ⅲ区块为例[J].中国石油勘探,2017,22(1):6-11. Wang Feng, Li Xingke, Zhang Yingan. Application of geology and engineering integration in the intensive well construction on a large platform:a case study on Xinli Ⅲ block, Jilin Oilfield[J]. China Petroleum Exploration, 2017,22(1):6-11.
[16] 谢军,张浩淼,佘朝毅,李其荣,范宇,杨扬.地质工程一体化在长宁国家级页岩气示范区中的实践[J].中国石油勘探,2017,22(1):21-28. Xie Jun, Zhang Haomiao, She Chaoyi, Li Qirong, Fan Yu, Yang Yang. Practice of geology-engineering integration in Changning state shale gas demonstration area[J]. China Petroleum Exploration, 2017,22(1):21-28.
[17] 王昕,杨斌,王瑞.吐哈油田低饱和度油藏地质工程一体化效益勘探实践[J].中国石油勘探,2017,22(1):38-45. Wang Xin, Yang Bin, Wang Rui. Beneficial exploration based on geology-engineering integration in low-saturation oil reservoirs of Tuha oilfield[J]. China Petroleum Exploration, 2017,22(1):38-45.
[18] 文乾彬,杨虎,孙维国,陈伟峰,张宁.吉木萨尔凹陷致密油大井丛"工厂化"水平井钻井技术[J]. 新疆石油地质,2015,36(3):334-337. Wen Qianbin, Yang Hu, Sun Weiguo, Chen Weifeng, Zhang Ning. Factory-Like drilling technology of cluster horizontal wells for tight oil development in Jimusaer sag, Junggar Basin[J]. Xinjiang Petroleum Geology, 2015,36(3):334-337.
[19] 鲍海娟,刘旭,周亚丽,杨翼波,郭旭光.吉木萨尔凹陷致密油有利区预测及潜力分析[J].特种油气藏,2016,23(5):38-42 Bao Haijuan, Liu Xu, Zhou Yali, Yang Yibo, Guo Xuguang. Prediction and potential analysis of the sweet point of tight oil in Jimusaer depression[J]. Special Oil & Gas Reservoirs, 2016,23(5):38-42.
[20] 章敬,李佳琦,史晓川,江洪,黄兴龙,蔡贤平.吉木萨尔凹陷致密油层压裂工艺探索与实践[J].新疆石油地质,2013,34(6):710-713. Zhang Jing, Li Jiaqi, Shi Xiaochuan, Jiang Hong, Huang Xinglong, Cai Xianping. Fracturing technology for dense oil reservoir in Jumusaer sag:probe and practice[J]. Xinjiang Petroleum Geology, 2013,34(6):710-713.
[21] 姚宗全,于兴河,高阳,马聪,王进,黄丁杰,等.地震多属性拟合技术在粗粒扇体沉积相图编制中的应用——以玛131井区百口泉组二段为例[J].沉积学报,2017,35(2):371-382. Yao Zongquan, Yu Xinghe, Gao Yang, Ma Cong, Wang Jin, Huang Dingjie, et al. Application of multiple seismic attributes matching technology in mapping coarse-grain fan deposition:a case from Triassic Baikouquan Formation Member 2 in Ma 131 area[J]. Acta Sedimentologica Sinica, 2017,35(2):371-382.
[22] 孙晓瑞,戎克生,向冬梅,闫鹏,蒲晓林,罗霄.准噶尔盆地玛湖凹陷泥页岩水化特性及分类研究[J].科学技术与工程,2017,17(1):177-181. Sun Xiaorui, Rong Kesheng, Xiang Dongmei, Yan Peng, Pu Xiaolin, Luo Xiao. The characteristics and classification of hydration of shale fed from Mahu sag in Dzungaria Basin[J]. Science Technology and Engineering, 2017,17(1):177-181.
[23] 王海涛,张伟,王国斌,甘仁忠,李君,张雪飞.准噶尔盆地环玛湖凹陷钻井提速技术[J].石油钻采工艺,2014,36(4):30-33. Wang Haitao, Zhang Wei, Wang Guobin, Gan Renzhong, Li Jun, Zhang Xuefei. ROP enhancing technology for circum-Mahu lake depression in Junggar Basin[J]. Oil Drilling & Production Technology, 2014,36(4):30-33.