Special Oil & Gas Reservoirs >

2023 , Vol. 30 >Issue 2: 168 - 174

DOI: https://doi.org/10.3969/j.issn.1006-6535.2023.02.024

Drilling & Production Engineering

Application of Fracture-controlled Fracturing Technology in Tridimensional Development of Shale Gas in Sichuan Basin

  • Li Pengfei
Expand
  • CNPC Greatwall Drilling Co., Ltd., Panjin, Liaoning 124109, China

Received date: 2022-02-23

  Revised date: 2022-12-14

  Online published: 2023-05-29

Fold

Abstract

Although the physical conditions of shale reservoirs in Sichuan Basin are superior, the height of fractures formed by SRV fracturing is limited, making it difficult to develop the high-quality shale reservoirs with a thickness of tens of meters vertically. To solve this problem, an infilled well test was conducted on the X platform of Weiyuan Block, and new wells were under reservoir sitmulation by fracture-controlled fracturing technology, so as to explore the feasibility of tridimensional development of this block. The results show that: with the increase of induced stress between clusters by close-spaced fracturing technology, the propagation path of hydraulic fractures gets more complex. Considering the annual production and construction cost, the optimal cluster spacing is about 10 m. Temporary plugging agent deflection technology is beneficial to enhance oil recovery. When the temporary plugging agent is injected after 50% of the total fluid volume is injected, the propagation of multi-cluster fractures is the most uniform. The multi-functional integrated fracturing fluid can achieve the stepless viscosity variation and the alternating injection of variable-viscosity fluid, making the main fracture and complex fracture progapate at the same time. The fracture-controlled fracturing technology has been applied to the Weiyuan shale gas reservoir. The cumulative gas productions of the three new wells were 1.85, 1.36 and 1.55 times of the cumulative gas production of the three neighboring old wells in 90 days, 1 year and 2 years a after the new wells are put into production, showing good fracturing effect. This technology can be used as reference for the trimensional development of shale gas well clusters.

Key words： shale gas; tridimensional development; fracture-controlled fracturing technology; fracturing fluid; Weiyuan Block; Sichuan Basin

Cite this article

Li Pengfei . Application of Fracture-controlled Fracturing Technology in Tridimensional Development of Shale Gas in Sichuan Basin[J]. Special Oil & Gas Reservoirs, 2023 , 30(2) : 168 -174 . DOI: 10.3969/j.issn.1006-6535.2023.02.024

References

[1] ALIMAHOMED F,MALPANI R,ROHANN J,et al.Stacked pay pad development in the Midland Basin[C].SPE187496-MS,2017:417-432.
[2] JILL T,NICK F,MARC S,et al.Tank development in the Midland Basin,Texas:a case study of super-charging a reservoir to optimize production and increase horizontal well densities[C].URTeC2902895-MS,2018:36-40.
[3] KELVIN A,JOHN Y,DEREK E,et al.Laboratory evaluation of multiphase permeability evolution in tight sandstones:impact of slickwater and friction reducers[C].SPE180250-MS,2016:28-36.
[4] JACOBS T.Shale sector's switch to slickwater highlights compatibility issues with produced water[J].Journal of Petroleum Technology,2019,71(1):31-32.
[5] 梁兴,王高成,张介辉,等.昭通国家级示范区页岩气一体化高效开发模式及实践启示[J].中国石油勘探,2017,22(1):29-37.
LIANG Xing,WANG Gaocheng,ZHANG Jiehui,et al.High-efficiency integrated shale gas development model of Zhaotong National Demonstration Zone and its practical enlightenment[J].China Petroleum Exploration,2017,22(1):29-37.
[6] 董大忠,施振生,管全中,等.四川盆地五峰组—龙马溪组页岩气勘探进展、挑战与前景[J].天然气工业,2018,38(4):67-76.
DONG Dazhong,SHI Zhensheng,GUAN Quanzhong,et al.Progress,challenges and prospects of shale gas exploration in the Wufeng-Longmaxi Reservoirs in the Sichuan Basin[J].Natural Gas Industry,2018,38(4):67-76.
[7] 董大忠,邹才能,戴金星,等.中国页岩气发展战略对策建议[J].天然气地球科学,2016,27(3):397-406.
DONG Dazhong,ZOU Caineng,DAI Jinxing,et al.Suggestions on the development strategy of shale gas in China[J].Natural Gas Geoscience,2016,27(3):397-406.
[8] 邹才能,赵群,董大忠,等.页岩气基本特征、主要挑战与未来前景[J].天然气地球科学,2017,28(12):1781-1796.
ZOU Caineng,ZHAO Qun,DONG Dazhong,et al.Geological characteristics,main challenges and future prospect of shale gas[J].Natural Gas Geoscience,2017,28(12):1781-1796.
[9] 龙胜祥,冯动军,李凤霞,等.四川盆地南部深层海相页岩气勘探开发前景[J].天然气地球科学,2018,29(4):443-451.
LONG Shengxiang,FENG Dongjun,LI Fengxia,et al.Prospect of the deep marine shale gas exploration and development in the Sichuan Basin[J].Natural Gas Geoscience,2018,29(4):443-451.
[10] 吴伟,黄士鹏,胡国艺,等.威远地区页岩气与常规天然气地球化学特征对比[J].天然气地球科学,2014,25(12):1994-2002.
WU Wei,HUANG Shipeng,HU Guoyi,et al.A comparison between shale gas and conventional gas on geochemical characteristics in Weiyuan Area[J].Natural Gas Geoscience,2014,25(12):1994-2002.
[11] 李剑,王晓波,侯连华,等.四川盆地页岩气地球化学特征及资源潜力[J].天然气地球科学,2021,32(8):1093-1106.
LI Jian,WANG Xiaobo,HOU Lianhua,et al.Geochemical characteristics and resource potential of shale gas in Sichuan Basin[J].Natural Gas Geoscience,2021,32(8):1093-1106.
[12] 邱振,邹才能,王红岩,等.中国南方五峰组—龙马溪组页岩气差异富集特征与控制因素[J].天然气地球科学,2020,31(2):163-175.
QIU Zhen,ZOU Caineng,WANG Hongyan,et al.Discussion on characteristics and controlling factors of differential enrichment of Wufeng-Longmaxi formations shale gas in south China[J].Natural Gas Geoscience,2020,31(2):163-175.
[13] 贾爱林,位云生,金亦秋.中国海相页岩气开发评价关键技术进展[J].石油勘探与开发,2016,43(6):949-955.
JIA Ailin,WEI Yunsheng,JIN Yiqiu.Progress in key technologies for evaluating marine shale gas development in China[J].Petroleum Exploration and Development,2016,43(6):949-955.
[14] 伍贤柱.四川盆地威远页岩气藏高效开发关键技术[J].石油钻探技术,2019,47(4):1-9.
WU Xianzhu.Key technologies in the efficient development of the Weiyuan shale gas reservoir,Sichuan Basin[J].Petroleum Drilling Techniques,2019,47(4):1-9.
[15] 陈更生,吴建发,刘勇,等.川南页岩气百亿立方米页岩气产能建设地质工程一体化关键技术[J].天然气工业,2021,41(1):72-81.
CHEN Gengsheng,WU Jianfa,LIU Yong,et al.Geology-engineering integration key technologies for ten billion cubic meters of shale gas productivity construction in the southern Sichuan Basin[J].Natural Gas Industry,2021,41(1):72-81.
[16] 马新华,谢军.川南地区页岩气勘探开发进展及发展前景[J].石油勘探与开发,2018,45(1):161-169.
MA Xinhua,XIE Jun.The progress and prospects of shale gas exploration and exploitation in southern Sichuan Basin,NW China[J].Petroleum Exploration and Development,2018,45(1):161-169.
[17] 位云生,王军磊,齐亚东,等.页岩气井网井距优化[J].天然气工业,2018,38(4):129-137.
WEI Yunsheng,WANG Junlei,QI Yadong,et al.Optimization of shale gas well pattern and spacing[J].Natural Gas Industry,2018,38(4):129-137.
[18] 李彦超,张庆,沈建国,等.页岩气藏长段多簇暂堵体积改造技术[J].天然气工业,2022,42(2):143-150.
LI Yanchao,ZHANG Qing,SHEN Jianguo,et al.Volumetric stimulation technology of long-section multi-cluster temporary plugging in shale gas reservoirs[J].Natural Gas Industry,2022,42(2):143-150.
[19] 朱海燕,沈佳栋,周汉国.支撑裂缝导流能力的数值模拟[J].石油学报,2018,39(12):1410-1420.
ZHU Haiyan,SHEN Jiadong,ZHOU Hanguo.Numerical simulation on propped fracture conductivity[J].Acta Petrolei Sinica,2018,39(12):1410-1420.
[20] 王兴文,刘琦,栗铁锋,等.威荣页岩气田水平井套变段暂堵分段压裂工艺技术研究[J]. 钻采工艺,2021,44(6):55-58.
WANG Xingwen,LIU Qi,LI Tiefeng,et al.Research on temporary plugging fracturing technology in horizontal well with casing deformation in Weirong shale gas reservoir[J].Drilling & Production Technology,2021,44(6):55-58.
Options
Outlines

/

〈 〉