压裂液渗吸与富气页岩气井典型生产规律关系剖析

doi:10.3969/j.issn.1006-6535.2024.03.021

特种油气藏 ›› 2024, Vol. 31 ›› Issue (3): 158-166.DOI: 10.3969/j.issn.1006-6535.2024.03.021

压裂液渗吸与富气页岩气井典型生产规律关系剖析

王科^1,2, 卢双舫², 娄毅³, 李楠⁴, 李海涛⁵, 叶铠睿⁶, 张砚⁷, 李松雷⁸

1.贵州大学资源与环境工程学院,贵州贵阳 550025;
2.东北石油大学三亚海洋油气研究院,海南三亚 572024;
3.贵州盘江煤层气开发利用有限责任公司,贵州贵阳 550081;
4.中国石油新疆油田分公司,新疆克拉玛依 834000;
5.西南石油大学油气藏地质及开发工程全国重点实验室,四川成都 610500;
6.中国石油集团川庆钻探工程有限公司,四川成都 610051;
7.中国石油西南油气田分公司,四川成都 610051;
8.中国石油渤海钻探工程有限公司,天津 300450

收稿日期:2023-06-25 修回日期:2024-03-20 出版日期:2024-06-25 发布日期:2024-07-26
作者简介:王科(1990—),男,副教授,2014年毕业于长江大学石油工程专业,2019年毕业于西南石油大学油气田开发工程专业,获博士学位,现主要从事页岩气排采及储层评价研究工作。
基金资助:
贵州省科技重大专项“贵州省煤层气(煤矿瓦斯)抽采提产增效关键技术及工程试验”(黔科合战略找矿[2022]ZD001);贵州省科技计划“页岩气井预注CO₂增压防井间压窜机理研究”(黔科合基础-ZK[2022]一般106)

Analysis of the Relationship Between Fracturing Fluid Imbibition and Typical Production Rules of Gas-rich Shale Gas Wells

Wang Ke^1,2, Lu Shuangfang², Lou Yi³, Li Nan⁴, Li Haitao⁵, Ye Kairui⁶, Zhang Yan⁷, Li Songlei⁸

1. College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou 550025, China;
2. NEPU Sanya Offshore Oil & Gas Research Institute, Sanya, Hainan, 572024, China;
3 Guizhou Panjiang Coalbed Methane Development and Utilization Company Limited, Guiyang, Guizhou 550081, China;
4. PetroChina Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China;
5. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
6. CNPC Chuanqing Drilling Engineering Company Limited, Chengdu, Sichuan 610051, China;
7. PetroChina Southwest Oil & Gas Field Company, Chengdu, Sichuan 610051, China;
8. CNPC Bohai Drilling Engineering Company Limited, Tianjin 300450, China

Received:2023-06-25 Revised:2024-03-20 Online:2024-06-25 Published:2024-07-26

摘要/Abstract

摘要： 压裂液渗吸会改变储层内的原始气水赋存特征,进而影响页岩气井生产规律。为此,通过动态驱替与核磁共振实验,结合前人研究成果,剖析了孔隙内原始气水分布、压裂液渗吸对通孔和盲孔内气体赋存的影响以及气井生产规律与压裂液渗吸的关系。研究表明:孔隙内原始气水赋存类型与矿物种类、裂缝孔径及储层湿度有关,小孔隙、孔角处存在束缚水,大孔隙内甲烷吸附面积随储层湿度的增大而减小,吸附气含量受有机质孔隙占比及成熟度的影响;近裂缝区存在渗吸影响区,在影响区内压裂液渗吸可促进吸附气解吸,并驱替非均衡渗吸通孔中的游离气,压缩均衡渗吸通孔及盲孔中的游离气;非均衡渗吸通孔中被驱替出的气体是水力裂缝中游离气的主要来源之一,只有当井筒、裂缝及影响区内滞留的压裂液排出,各区域内部的气体才能产出,从而导致产气曲线滞后于产水曲线的现象,且裂缝排液阻力远小于基质孔隙排液阻力,是产气及产水曲线呈“L”形递减的主要因素。该研究成果聚焦于压裂液渗吸对气体赋存及产出的影响,可丰富页岩气储层保护理论,对气井高效开发具有指导作用。

关键词: 页岩气, 压裂液渗吸, 孔隙, 气水赋存, 吸附

Abstract: The imbibition of fracturing fluid can alter the original gas-water occurrence in reservoirs,thereby affecting the production behavior of shale gas wells.However,through dynamic displacement and nuclear magnetic resonance experiments,combined with previous research results,we analysis of the original gas-water distribution in pores,the effects of fracturing fluid imbibition on gas occurrence in through-pores and blind-pores,and the relationship between gas well production behavior and fracturing fluid imbibition were carried out.The study reveals that the occurrence of original gas and water in pores is related to mineral types,fracture apertures,and reservoir humidity.There is bound water in small pores and pore corners.The adsorption area of methane in large pores decreases with increasing reservoir humidity,and the amount of adsorbed gas is influenced by the proportion of organic matter pores and maturity.A zone affected by imbibition exists near fractures,where fracturing fluid imbibition can promote desorption of adsorbed gas,displace free gas in non-equilibrium imbibition through-pores,and compress free gas in equilibrium imbibition through-pores and blind-pores.The gas displaced from non-equilibrium imbibition through-pores is one of the main sources of free gas in hydraulic fractures.Only when the fracturing fluid retained in the wellbore,fracture and influence area is discharged,was gas be produced from various areas,resulting in the phenomenon that the gas production curve lags behind the water production curve,and the fracture drainage resistance is much smaller than that of the matrix pore,which is the main reason for the "L"type decline of gas production and water production curve.The research findings focus on the impact of fracturing fluid imbibition on the occurrence and production of gas,contributing to the enrichment of shale gas reservoir protection theories.This has guiding significance for the efficient development of gas wells.

Key words: shale gas, fracturing fluid imbibition, pores, gas-water occurrence, adsorption

中图分类号:

TE375

王科, 卢双舫, 娄毅, 李楠, 李海涛, 叶铠睿, 张砚, 李松雷. 压裂液渗吸与富气页岩气井典型生产规律关系剖析[J]. 特种油气藏, 2024, 31(3): 158-166.

Wang Ke, Lu Shuangfang, Lou Yi, Li Nan, Li Haitao, Ye Kairui, Zhang Yan, Li Songlei. Analysis of the Relationship Between Fracturing Fluid Imbibition and Typical Production Rules of Gas-rich Shale Gas Wells[J]. Special Oil & Gas Reservoirs, 2024, 31(3): 158-166.

参考文献

[1] 李鹏飞.四川盆地页岩气立体开发缝控压裂技术应用[J].特种油气藏,2023,30(2):168-174.
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.
[2] 郭建春,赵峰,詹立,等.四川盆地页岩气储层暂堵转向压裂技术进展及发展建议[J].石油钻探技术,2023,51(4):170-183.
GUO Jianchun,ZHAO Feng,ZHAN Li,et al.Recent advances and development suggestions of temporary plugging and diverting fracturing technology for shale gas reservoirs in the Sichuan Basin[J].Petroleum Drilling Techniques,2023,51(4):170-183.
[3] 龚月,高和群,李小越,等.四川盆地及周缘页岩气赋存方式展布特征研究[J].非常规油气,2023,10(2):49-56.
GONG Yue,GAO Hequn,LI Xiaoyue,et al.Study on the distribution characteristics of occurrence modes of shale gas in the Sichuan Basin and its periphery[J].Unconventional Oil & Gas,2023,10(2):49-56.
[4] 蒙冕模,葛洪魁,纪文明,等.基于核磁共振技术研究页岩自发渗吸过程[J].特种油气藏,2015,22(5):137-140.
MENG Mianmo,GE Hongkui,JI Wenming,et al.NMR Study on shale spontaneous imbibition[J].Special Oil & Gas Reservoirs,2015,22(5):137-140.
[5] WANG K,LI Z X,YE K R,et al.A new dynamic imbibition model for penny-shaped blind pores in shale gas well[J].Journal of Natural Gas Science and Engineering,2022,101:04553.
[6] 王香增,张建锋,郝世彦.延安地区陆相页岩气勘探开发关键技术[J].非常规油气,2023,10(1):1-10.
WANG Xiangzeng,ZHANG Jianfeng,HAO Shiyan.Key technologies of continental shale gas exploration and development in Yan′an Area[J].Unconventional Oil & Gas,2023,10(1):1-10.
[7] 李兆敏,赵艳玲,王海涛,等.注入水矿化度对盐间页岩油储层物性影响研究[J].特种油气藏,2020,27(2):131-137.
LI Zhaomin,ZHAO Yanling,WANG Haitao,et al.Effects of injection water salinity on physical properties of inter-salt shale oil reservoir[J].Special Oil & Gas Reservoirs,2020,27(2):131-137.
[8] 王乾宇,吴飞鹏,孙秋分,等.页岩气产能预测方法的优选与评价[J].断块油气田,2023,30(4):559-565,578.
WANG Qianyu,WU Feipeng,SUN Qiufen,et al.Optimization and evaluation of prediction methods for shale gas productivity[J].Fault-Block Oil & Gas Field,2023,30(4):559-565,578.
[9] 胡志明,穆英,顾兆斌,等.渗吸效应对页岩气赋存状态的影响规律[J].天然气工业,2020,40(5):66-71.
HU Zhiming,MU Ying,GU Zhaobin,et al.Law of imbibition effect on shale gas occurrence state[J].Natural Gas Industry,2020,40(5):66-71.
[10] 周博成,熊炜,赖建林,等.武隆区块常压页岩气藏低成本压裂技术[J].石油钻探技术,2022,50(3):80-85.
ZHOU Bocheng,XIONG Wei,LAI Jianlin,et al.Low-cost fracturing technology in normal-pressure shale gas reservoirs in Wulong Block[J].Petroleum Drilling Techniques,2022,50(3):80-85.
[11] 王聪,黄世军,赵凤兰,等.基于波前快速法的页岩气藏重复压裂储层动用评价方法[J].断块油气田,2023,30(6):940-946.
WANG Cong,HUANG Shijun,ZHAO Fenglan,et al.Reservoir evaluation method for refracturing in shale gas reservoir based on fast marching method[J].Fault-Block Oil & Gas Field,2023,30(6):940-946.
[12] WANG K,YE K R,JIANG B B,et al.The mechanism of gas-water extraction in micro- and nanoscale pores in shale gas reservoirs:based on gas-water interactions[J].Chemical Engineering Science,2022,248:117259.
[13] 刘树根,焦堃,张金川,等.深层页岩气储层孔隙特征研究进展——以四川盆地下古生界海相页岩层系为例[J].天然气工业,2021,41(1):29-41.
LIU Shugen,JIAO Kun,ZHANG Jinchuan,et al.Research progress on the pore characteristics of deep shale gas reservoirs:an example from the Lower Paleozoic marine shale in the Sichuan Basin[J].Natural Gas Industry,2021,41(1): 29-41.
[14] 刘洪林,王红岩.中国南方海相页岩超低含水饱和度特征及超压核心区选择指标[J].天然气工业,2013,33(7):140-144.
LIU Honlin,WANG Honyan.Ultra-low water saturation characteristics and the identification of over-pressured play fairways of marine shales in south China[J].Natural Gas Industry,2013,33(7):140-144.
[15] MENG M M,GE H K,SHEN Y H,et al.The effect of clay-swelling induced cracks on shale permeability during liquid imbibition and diffusion[J].Journal of Natural Gas Science and Engineering,2020,83:103514.
[16] WASHBURN E W.The dynamics of capillary flow[J].Physical review,1921,17(3):273-283.
[17] CAI J C,YU B M,ZOU M Q,et al.Fractal characterization of spontaneous co-current imbibition in porous media[J].Energy & Fuel,2010,24(3):1860-1867.
[18] 熊健,李羽康,刘向君,等.水岩作用对页岩岩石物理性质的影响——以四川盆地下志留统龙马溪组页岩为例[J].天然气工业,2022,42(8):190-201.
XIONG Jian,LI Yukang,LIU Xiangjun,et al.Influences of water-rock interaction on the physical and mechanical properties of shales:a case study of the Lower Silurian Longmaxi Formation in the Sichuan Basin[J].Natural Gas Industry,2022,42(8):190-201.
[19] 孙金声,许成元,康毅力,等.致密/页岩油气储层损害机理与保护技术研究进展及发展建议[J].石油钻探技术,2020,48(4):1-10.
SUN Jinsheng,XU Chengyuan,KANG Yili,et al.Research progress and development recommendations covering damage mechanisms and protection technologies for tight/shale oil and gas reservoirs[J].Petroleum Drilling Techniques,2020,48(4):1-10.
[20] 卢双舫,沈博健,许晨曦,等.利用GCMC分子模拟技术研究页岩气的吸附行为和机理[J].地球科学,2018,43(5):1783-1791.
LU Shuangfang,SHEN Bojian,XU Chenxi,et al.Study on adsorption behavior and mechanism of shale gas by using GCMC molecular simulation[J].Journal of Earth Science,2018,43(5):1783-1791.
[21] LI J,LI X F,WANG X Z,et al.Water distribution characteristic and effect on methane adsorption capacity in shale clay[J].International Journal of Coal Geology,2016,159:135-154.
[22] XIONG J,LIU X J,LIANG L X,et al.Investigation of methane adsorption on chlorite by grand canonical Monte Carlo simulations[J].Petroleum Science,2017,14(1):37-49.
[23] DE LEEUW N H,HIGGINS F M,PARKER S C.Modeling the surface structure and stability of α-quartz[J].Journal of Physical Chemistry B,1999,103(8):1270-1277.
[24] GENSTERBLUM Y,BUSCH A,KROOSS B M.Molecular concept and experimental evidence of competitive adsorption of H₂O,CO₂,and CH₄ on organic material[J].Fuel,2014,115:581-588.
[25] HU Y N,DEVEGOWDA D,STRIOLO A,et al.Microscopic dynamics of water and hydrocarbon in shale-kerogen pores of potentially mixed-wettability[J].SPE Journal,2014,20(1):112-124.
[26] 方朝合,黄志龙,王巧智,等.富含气页岩储层超低含水饱和度成因及意义[J].天然气地球科学,2014,25(3):471-476.
FANG Chaohe,HUANG Zhilong,WANG Qiaozhi,et al.Cause and significance of the ultra-low water saturation in gas-enriched shale reservoir[J].Natural Gas Geoscience,2014,25(3):471-476.
[27] 张砚,惠栋,张鉴,等.四川盆地海相页岩水蒸气吸附特征及其主控因素——以川南地区下志留统龙马溪组页岩为例[J].石油与天然气地质,2022,43(6):1431-1444.
ZHANG Yan,HUI Dong,ZHANG Jian,et al.Characteristics and main controlling factors of water vapor adsorption in marine shale:a case study of the Lower Silurian Longmaxi shales in southern Sichuan Basin[J].Oil & Gas Geology,2022,43(6):1431-1444.
[28] LIN H,YANG B,SONG X X,et al.Fracturing fluid retention in shale gas reservoir from the perspective of pore size based on nuclear magnetic resonance[J].Journal of Hydrology,2021,601:126590.
[29] ZAN Y R,YU Q C.Experimental investigation of spontaneous water imbibition into methane-saturated shales under different methane pressures[J].Energy & Fuels,2020,34(11):14356-14367.
[30] 申颍浩,葛洪魁,宿帅,等.页岩气储层的渗吸动力学特性与水锁解除潜力[J].中国科学:物理学力学天文学,2017,47(11):88-98.
SHEN Yinghao,GE Hongkui,SU Shuai,et al.Imbibition characteristic of shale gas formation and water-block removal capability[J].Scientia Sinica Physica,Mechanica & Astronomica,2017,47(11):88-98.
[31] WANG K,YE K R,JIANG B B,et al.Mechanism of the production impact in shale gas wells caused by water invasion during interwell interference[J].ACS Omega,2021,6(51):35821-35829.
[32] 王海柱,李根生,郑永,等.超临界CO₂压裂技术现状与展望[J].石油学报,2020,41(1):116-126.
WANG Haizhu,LI Gensheng,ZHENG Yong,et al.Research status and prospects of supercritical CO₂ fracturing technology[J].Acta Petrolei Sinica,2020,41(1):116-126.
[33] 张金风,梁成钢,陈依伟,等.表面活性剂对页岩油储层高温高压渗吸驱油效果的影响因素[J].大庆石油地质与开发,2023,42(3):167-174.
ZHANG Jinfeng,LIANG Chenggang,CHEN Yiwei,et al.Influence factors of surfactant on high-temperature and high-pressure imbibition displacement effect of shale oil reservoir[J].Petroleum Geology & Oilfield Development in Daqing,2023,42(3):167-174.

压裂液渗吸与富气页岩气井典型生产规律关系剖析

Analysis of the Relationship Between Fracturing Fluid Imbibition and Typical Production Rules of Gas-rich Shale Gas Wells

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