Study and Application of Temporary Plugging Agent for Turnaround Fracturing in Deep Well

doi:10.3969/j.issn.1006-6535.2022.01.023

Abstract

Abstract: Turnaround fracturing can widen the swept scope of hydraulic fractures and the contact area between crude oil and fractures, and it is an effective method to develop low-porosity and low-permeability reservoirs. To address the problems of low plugging pressure of turnaround fracturing and less study on temporary plugging agent suitable for turnaround fracturing of deep wells, the formulation of temporary plugging agent was optimized by laboratory experiment, the fracturing effect of the formulation was analyzed by numerical simulation, and the simulation results were compared with the field microseismic monitoring data. The results showed that no plugging was effective by using temporary plugging particles alone, and the optimized compound temporary plugging agent formulation was 0.8% fiber plus 0.5% temporary plugging particles, with the maximum pressure for borehole plugging of 8.7 MPa; the lateral swept width of the optimized turnaround fracturing system was very similar to the microseismic monitoring results, which clearly demonstrates the effectiveness of the compound temporary plugging agent. There is much for reference of the study results for improving the turnaround fracturing effect of deep wells.

Key words: turnaround fracturing, temporary plugging agent, deep well, low porosity and low permeability, microseismic, numerical simulation

CLC Number:

TE355

Li Wei, Xiao Yang, Chen Mingxin, Liu Huifeng, Fan Wentong, Huang Longzang, Peng Fen, Cao Kexue. Study and Application of Temporary Plugging Agent for Turnaround Fracturing in Deep Well[J]. Special Oil & Gas Reservoirs, 2022, 29(1): 154-159.

References

[1] WRIGHT C A,STEWART D W,EMANUELE M A,et al.Reorientation of propped refracture treatments in the lost hills field[C].SPE27896,1994:483-497.
[2] TALEGHANI A D,OLSON J E.Numerical modeling of multi-stranded hydraulic-fracture propagation:accounting for the interaction between induced and natural fractures[C].SPE124884,2009:1-10.
[3] WU Kan,OLSON J E.Investigation of critical in situ and injection factors in multi-frac treatments guidelines for controlling fracture complexity[C].SPE163821,2013:1-14.
[4] 郑力会,翁定为.绒囊暂堵液原缝无损重复压裂技术[J].钻井液与完井液,2015,32(3):76-78.
ZHENG Lihui,WENG Dingwei.Study on repeating fracturing while causing no damage to original fractures[J].Drilling Fluids & Completion Fluids,2015,32(3):76-78.
[5] ZHANG Jingchen,BIAN Xiaobing.Numerical simulation of hydraulic fracturing coalbed methane reservoir with independent fracture grid[J].Fuel,2015,143(1):543-546.
[6] WANG Daobing,ZHOU Fujian,GE Hongkui,et al.An experimental study on the mechanism of degradable fiber-assisted diverting fracturing and its influencing factors[J].Journal of Natural Gas Science and Engineering,2015,27(1):260-273.
[7] 汪道兵,周福建,葛洪魁,等.纤维暂堵人工裂缝附加压差影响因素分析[J].科技导报,2015,33(22):73-77.
WANG Daobing,ZHOU Fujian,GE Hongkui,et al.Analysis of factors influencing additional pressure drop of fiber-assisted temporary blocking of an artificial fracture[J].Science & Technology Review,2015,33(22):73-77.
[8] 胡阳明,毕曼,陈宝春,等.水力压裂近井裂缝转向延伸轨迹模拟[J].大庆石油地质与开发,2019,38(2):53-57.
HU Yangming,BI Man,CHEN Baochun,et al.Simulation of the fracture extension trajectory near the hydraulically fractured wellbore[J].Petroleum Geology & Oilfield Development in Daqing,2019,38(2):53-57.
[9] 薛亚斐,温哲豪,沈云波,等.绒囊暂堵转向压裂裂缝转向能力及其力学机理分析[J].石油钻采工艺,2018,40(5):633-640.
XUE Yafei,WEN Zhehao,SHEN Yunbo,et al.Analysis on the fracture diverting capacity and mechanical mechanisms of fuzzy-ball temporary plugging, diverting and fracturing technology[J].Oil Drilling & Production Technology,2018,40(5):633-640.
[10] 金智荣,包敏新,李升芳,等.暂堵转向分层压裂工艺在薄互层油藏中的应用研究[J].复杂油气藏,2019,12(4):76-78.
JIN Zhirong,BAO Minxin,LI Shengfang,et al.Application of temporary plugging and diversion separate layer fracturing in thin interbedded reservoirs[J].Complex Hydrocarbon Reservoirs,2019,12(4):76-78.
[11] 赵金洲,赵金,胡永全,等.水力压裂裂缝应力场变化规律[J].天然气地球科学,2019,30(12):1677-1683.
ZHAO Jinzhou,ZHAO Jin,HU Yongquan,et al.Study on stress field distribution of hydraulic fracturing[J].Natural Gas Geoscience,2019,30(12):1677-1683.
[12] 杨乾龙,黄禹忠,刘平礼,等.碳酸盐岩超深水平井纤维分流暂堵复合酸压技术及其应用[J].油气地质与采收率,2015,22(2):118-121.
YANG Qianlong,HUANG Yuzhong,LIU Pingli,et al.Research and application of composite acid fracturing technology with fiber diversion temporary plugging in ultra-deep carbonate horizontal wells[J].Petroleum Geology and Recovery Efficiency,2015,22(2):118-121.
[13] 王彦玲,原琳,任金恒.转向压裂暂堵剂的研究及应用进展[J].科学技术与工程,2017,17(32):196-204.
WANG Yanling,YUAN Lin,REN Jinheng.The progress in research and application of temporary plugging agent for diverting fracturing[J].Science Technology and Engineering,2017,17(32):196-204.
[14] 温庆志,徐希,王杏尊,等.低渗透疏松砂岩纤维压裂技术[J].特种油气藏,2014,21(2):131-134.
WEN Qingzhi,XU Xi,WANG Xingzun,et al.The fiber fracturing in low-permeability unconsolidated sandstone reservoir[J].Special Oil & Gas Reservoirs,2014,21(2):131-134.
[15] 齐天俊,韩春艳,罗鹏,等.可降解纤维转向技术在川东大斜度井及水平井中的应用[J].天然气工业,2013 33(8):58-63.
QI Tianjun,HAN Chunyan,LUO Peng,et al.Application of diversion technology using degradable fiber to highly-deviated and horizontal wells in the eastern Sichuan Basin[J].Natural Gas Industry,2013 33(8):58-63.
[16] 蒋卫东,刘合,晏军,等.新型纤维暂堵转向酸压实验研究与应用[J].天然气工业,2015,5(11):54-59.
JIANG Weidong,LIU He,YAN Jun,et al.A novel fiber temporary plugging and diverting acid fracturing technology:an experimental study and field practices[J].Natural Gas Industry,2015,5(11):54-59.
[17] 金智荣,吴林,何天舒,等.转向压裂用复合暂堵剂优选及应用[J].钻采工艺,2019,42(6):54-57.
JIN Zhirong,WU Lin,HE Tianshu,et al.Optimization and application of composite temporary blocking agent for divert fracturing[J].Drilling & Production Technology,2019,42(6):54-57.
[18] 马海洋,罗明良,温庆志,等.转向压裂用可降解纤维优选及现场应用[J].特种油气藏,2018,25(6):145-149.
MA Haiyang,LUO Mingliang,WEN Qingzhi, et al.Degradable fiber optimization and field application in diverting fracturing[J].Special Oil & Gas Reservoirs,2018,25(6):145-149.
[19] 李永寿,鄢宇杰,赵兵.缝洞型碳酸盐岩油藏重复改造工艺研究与应用[J].复杂油气藏,2019,12(1):86-90.
LI Yongshou,YAN Yujie,ZHAO Bing.Research and application of refracturing technology in fractured carbonate reservoir[J].Complex Hydrocarbon Reservoirs,2019,12(1):86-90.
[20] 赵荣华,刘文峥,邹建敏,等.复合暂堵转向酸化压裂技术在塔河油田的应用[J].特种油气藏,2019,26(6):146-150.
ZHAO Ronghua,LIU Wenzheng,ZOU Jianmin,et al.Application of temporary plugging steering acid fracturing in Tahe Oilfield[J].Special Oil & Gas Reservoirs,2019,26(6):146-150.
[21] 陈波,李勇明,刘福建,等.聚酯纤维-多粒径暂堵剂裂缝暂堵试验[J].长江大学学报(自然科学版),2020,17(4):39-45.
CHEN Bo,LI Yongming,LIU Fujian,et al.Experimental study on fracture temporary plugging of fiber-multiparticle temporary plugging agent[J].Journal of Yangtze University(Natural Science Edition),2020,17(4):39-45.