|Table of Contents|

Parameter Optimization and Field Application of Downhole Low Frequency Pulsation Hydraulic Fracturing Technology(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2023年第03期
Page:
643-652
Research Field:
沉积地质与油气勘探
Publishing date:

Info

Title:
Parameter Optimization and Field Application of Downhole Low Frequency Pulsation Hydraulic Fracturing Technology
Author(s):
NI Wei-jun1;  YANG Guo-hao1;  LIU Gang2;  FAN Chao-bo2;  XIE Cong2
(1. College of Petroleum Engineering, Xi'an Shiyou University, Xi'an 710065, Shaanxi, China; 2. No.4 Gas Production Plant, Yanchang Petroleum(Group)Exploration Company, Yan'an 727500, Shaanxi, China)
Keywords:
low frequency pulsation;  hydraulic fracturing;  pulsating pressure;  pulsation frequency;  parameter optimization;  construction pressure;  compressive strength;  fatigue failure
PACS:
TE35
DOI:
10.19814/j.jese.2022.11058
Abstract:
For the reservoir with high formation pressure and rock fracture pressure, the hydraulic fracturing is faced with the difficult problems of high wellhead pump pressure and high equipment requirements. By producing low frequency pulsation at the bottom of the well, the downhole low frequency pulsation hydraulic fracturing technology can significantly reduce rock initiation pressure and extension pressure, and improve the stimulation effect of fracturing. Through laboratory experiment and theoretical calculation, two key parameters of low frequency pulsation hydraulic fracturing technology, including pulsation frequency and pulsating pressure amplitude were optimized. The results show that when the pulsation frequency is 20 Hz, the rock damage is the most serious; the higher the pulsation frequency, the faster the pulsating pressure amplitude decays; the compressive strength of rock is inversely proportional to pulsating pressure amplitude; the greater the pulsating pressure amplitude, the lower the compressive strength of rock. Field tests of low frequency pulsation hydraulic fracturing technology were carried out on three wells in low permeability oilfield of northern Shaanxi. The test results show that compared with the adjacent conventional fracturing wells, the sand plugging problem of the test wells after low frequency pulsation hydraulic fracturing is significantly reduced, so downhole low frequency pulsation hydraulic fracturing technology has a significant effect in reducing the construction pressure.

References:

[1] 史广山,魏风清,高吾斌.基于空气脉冲循环作用的抽采钻孔增透技术研究[J].煤炭技术,2023,42(3):207-210.
SHI Guang-shan,WEI Feng-qing,GAO Wu-bin.Research on Permeability Improvement Technology of Borehole Based on Air Pulse Circulation[J].Coal Te-chnology,2023,42(3):207-210.
[2] 李 偲.定向长钻孔水力压裂煤层增透提高瓦斯抽采效果研究[D].贵阳:贵州大学,2022.
LI Si.Study on Permeability Improvement and Gas Extraction Effect of Hydraulic Fracturing of Coal Seam with Directional Long Borehole[D].Guiyang:Guizhou University,2022.
[3] 冯仁俊.脉冲射流割缝控制压裂技术关键参数研究及应用[J].煤炭工程,2022,54(1):63-69.
FENG Ren-jun.Research on Key Technical Parameters of Control Fracturing with Pulse Jet Slotting and Its Application[J].Coal Engineering,2022,54(1):63-69.
[4] 李晓绅,刘瑞鹏.含夹矸煤层水力割缝瓦斯抽采技术研究及应用[J].工矿自动化,2023,49(4):134-140.
LI Xiao-shen,LIU Run-peng.Research and Application of Hydraulic Slotting Gas Extraction Technology in Coal Seams Containing Gangue[J].Journal of Mine Automation,2023,49(4):134-140.
[5] 骆家宁,谢雄刚,杨家向,等.煤巷条带超高压水力割缝增透试验[J].湖南科技大学学报(自然科学版),2023,38(1):19-24.
LUO Jia-ning,XIE Xiong-gang,YANG Jia-xiang,et al.Experimental Study on Anti-reflection of Ultra-high Pressure Hydraulic Seam in Coal Roadway[J].Journal of Hunan University of Science and Technology(Natural Science Edition),2023,38(1):19-24.
[6] 孙 京,李贤忠,李克相.水力割缝增透技术在近距离煤层群石门揭煤中的应用[J].煤炭科技,2023,44(1):123-126.
SUN Jing,LI Xian-zhong,LI Ke-xiang.Application of Hydraulic Slitting and Permeability Enhancement Technology in Coal Seam Group Crosscut Uncovering[J].Coal Science & Technology Magazine,2023,44(1):123-126.
[7] 叶功勤,曹 函,高 强,等.充填型单缝煤岩水力脉动解堵试验研究[J].工程科学学报,2022,44(3):348-356.
YE Gong-qin,CAO Han,GAO Qiang,et al.Experimental Study of the Unblocking of Coalbed with Single-slit Filling by Pulse Hydraulic Fracturing[J].Chinese Journal of Engineering,2022,44(3):348-356.
[8] 杨宏民,贾镇府,尹 海.巷帮钻场扇形钻孔水力造穴增透促抽技术研究[J].煤炭技术,2023,42(2):112-116.
YANG Hong-min,JIA Zhen-fu,YIN Hai.Research on Technology of Hydraulic Cave-making to Increase Permeability and Promote Drainage for Fan-shaped Drilling in Roadway Side Drilling Field[J].Coal Technology,2023,42(2):112-116.
[9] 李全贵,武晓斌,翟 成,等.脉动水力压裂频率与流量对裂隙演化的作用[J].中国矿业大学学报,2021,50(6):1067-1076.
LI Quan-gui,WU Xiao-bin,ZHAI Cheng,et al.Effect of Frequency and Flow Rate of Pulsating Hydraulic Fracturing on Fracture Evolution[J].Journal of China University of Mining & Technology,2021,50(6):1067-1076.
[10] 吴 琼,张凤翔,陈松柏,等.基于水力压裂下脉冲放电技术的煤层气开采应用研究[J].煤炭与化工,2022,45(8):108-224.
WU Qiong,ZHANG Feng-xiang,CHEN Song-bai,et al.Application of Pulse Discharge Technology in Coalbed Methane Exploitation Based on Hydraulic Fracturing[J].Coal and Chemical Industry,2022,45(8):108-224.
[11] 魏 超.预脉冲组合压裂下水力裂缝扩展及缝网形成机制研究[D].济南:山东大学,2022.
WEI Chao.Study on the Mechanism of Hydraulic Fracture Propagation and Fracture Network Formation Under Pre-pulse Hydraulic Fracturing[D].Jinan:Shandong University,2022.
[12] 董康兴,赵安楠,王素玲,等.脉冲参数对致密储层水力压裂起裂压力影响[J].辽宁工程技术大学学报(自然科学版),2022,41(1):22-26.
DONG Kang-xing,ZHAO An-nan,WANG Su-ling,et al.Effect of Pulse Parameters on Hydraulic Fracturing Initiation Pressure of Tight Reservoir[J].Journal of Liaoning Technical University(Natural Science Edition),2022,41(1):22-26.
[13] 饶 庆.加脉冲条件下的水力压裂裂缝扩展规律研究[D].北京:中国石油大学,2020.
RAO Qing.Research on Fracture Propagation Law of Hydraulic Fracturing Under Pulsed Condition[D].Beijing:China University of Petroleum,2020.
[14] 马淑胤.水力压裂增透工艺及瓦斯综合治理效果考察研究[J].能源与环保,2023,45(3):134-139,143.
MA Shu-yin.Investigation and Research on Hydraulic Fracturing and Permeability Enhancement Technology and Comprehensive Gas Control Effect[J].China Energy and Environmental Protection,2023,45(3):134-139,143.
[15] 尹 陈,石学文,才 博,等.天然裂缝复杂程度对致密储层破裂特征的影响[J].高校地质学报,2023,29(1):128-137.
YIN Chen,SHI Xue-wen,CAI Bo,et al.The Effect of Pre-existing Fracture Complexity on Rupture Characteristics of Tight Reservoir[J].Geological Journal of China Universities,2023,29(1):128-137.
[16] 柴锡军,熊俊杰,杨程涛.煤矿井下机械造穴卸压增透装置研究与应用[J].煤炭技术,2023,42(2):163-166.
CHAI Xi-jun,XIONG Jun-jie,YANG Cheng-tao.Research and Application of Pressure Releasing and Permeability Improvement Equipment for Mechanical Cavitations in Underground Coal Mine[J].Coal Technology,2023,42(2):163-166.
[17] 易书钢,郝 殿,赵庆红,等.机械造穴增透技术在硬煤层穿层抽采钻孔的应用研究[J].煤矿机械,2023,44(2):137-140.
YI Shu-gang,HAO Dian,ZHAO Qing-hong,et al.Study on Application of Mechanical Caving and Permeability Increasing Technology in Hard Coal Seam Cross Seam Drainage Drilling[J].Coal Mine Machi-nery,2023,44(2):137-140.
[18] 聂翠平,兰剑平,王祖文,等.井下低频水力脉动压裂技术及其应用[J].钻采工艺,2021,44(2):38-42.
NIE Cui-ping,LAN Jian-ping,WANG Zu-wen,et al.Downhole Low Frequency Hydraulic Pulsing Fracturing Technology and Its Application[J].Drilling & Production Technology,2021,44(2):38-42.
[19] 聂翠平,兰剑平,王祖文,等.井下低频水力脉动压裂机理与应用[J].西安石油大学学报(自然科学版),2020,35(5):54-59.
NIE Cui-ping,LAN Jian-ping,WANG Zu-wen,et al.Mechanism Study and Application of Downhole Low-frequency Pulsing Hydraulic Fracturing Technology[J].Journal of Xi'an Shiyou University(Natural Science Edition),2020,35(5):54-59.
[20] 张世殊,刘恩龙,张建海.砂岩在低频循环荷载作用下的疲劳和损伤特性试验研究[J].岩石力学与工程学报,2014,33(增1):3212-3218.
ZHANG Shi-shu,LIU En-long,ZHANG Jian-hai.Experimental Study of Fatigue Damage Properties of Sandstone Samples Under Cyclic Loading with Low Frequencies[J].Chinese Journal of Rock Mechanics and Engineering,2014,33(S1):3212-3218.
[21] 李贤忠.高压脉动水力压裂增透机理与技术[D].徐州:中国矿业大学,2013.
LI Xian-zhong.The Mechanism and Technology of Permeability Enhancements in Coal Seam Based on High Pressure Pulsating Hydraulic Fracturing[D].Xuzhou:China University of Mining and Technology,2013.
[22] 杜金磊.低透气性突出煤层高压水力割缝增透技术研究及应用[D].武汉:武汉工程大学,2022.
DU Jin-lei.Research on Damage Deformation Laws and Acoustic Emission Characteristics of Raw Coal Under Different Loading and Unloading Methods[D].Wuhan:Wuhan Institute of Technology,2022.
[23] 邓华锋,胡 玉,李建林,等.循环荷载的频率和幅值对砂岩动力特性的影响[J].岩土力学,2017,38(12):3402-3409,3418.
DENG Hua-feng,HU Yu,LI Jian-lin,et al.Effects of Frequency and Amplitude of Cyclic Loading on the Dynamic Characteristics of Sandstone[J].Rock and Soil Mechanics,2017,38(12):3402-3409,3418.
[24] 张海波.低频水力脉动压裂中脉动在垂直裂缝中的传播特性研究[D].西安:西安石油大学,2020.
ZHANG Hai-bo.Study on Propagation Characteristics of Pulsing in Vertical Fractures During Low-frequency Hydraulic Pulsing Fracturing[D].Xi'an:Xi'an Shiyou University,2020.
[25] 李全贵.脉动载荷下煤体裂隙演化规律及其在瓦斯抽采中的应用研究[D].徐州:中国矿业大学,2015.
LI Quan-gui.Research on the Evolution Law of Coal Fracture Under Pulse Loading and Its Application on Gas Extraction[D].Xuzhou:China University of Mining and Technology,2015.
[26] 宋建民,邹永洺.机械造穴增透技术在高瓦斯低透气性煤层的应用研究[J].山西煤炭,2022,42(4):25-32.
SONG Jian-min,ZOU Yong-ming.Application of Mechanical Cavitation and Permeability Enhancement Technology in Coal Seams of High Gas and Low Permeability[J].Shanxi Coal,2022,42(4):25-32.
[27] 张小军,郭继香,许振芳,等.压裂增产过程中页岩储层伤害机理研究进展[J].科学技术与工程,2022,22(34):14991-14998.
ZHANG Xiao-jun,GUO Ji-xiang,XU Zhen-fang,et al.Research Progress on Shale Formation Damage Me-chanism During Fracturing Stimulation[J].Science Technology and Engineering,2022,22(34):14991-14998.
[28] 杨长鑫,杨兆中,李小刚,等.中国煤层气地面井开采储层改造技术现状与展望[J].天然气工业,2022,42(6):154-162.
YANG Chang-xin,YANG Zhao-zhong,LI Xiao-gang,et al.Status and Prospect of Reservoir Stimulation Technologies for CBM Surface Well Production in China[J].Natural Gas Industry,2022,42(6):154-162.
[29] 康红普,姜鹏飞,冯彦军,等.煤矿巷道围岩卸压技术及应用[J].煤炭科学技术,2022,50(6):1-15.
KANG Hong-pu,JIANG Peng-fei,FENG Yan-jun,et al.Destressing Technology for Rock Around Coal Mine Roadways and Its Applications[J].Coal Science and Technology,2022,50(6):1-15.
[30] 徐经苍,南晶晶,刘 斌,等.瓦斯抽采影响因素及布孔参数优化模拟研究[J].煤炭科技,2023,44(2):74-80.
XU Jing-cang,NAN Jing-jing,LIU Bin,et al.Simulation Study on Influencing Factors of Gas Drainage and Optimization of Hole Layout Parameters[J].Coal Science & Technology Magazine,2023,44(2):74-80.

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Last Update: 2023-05-30