A pH Regulator Used in Low Concentration HPGG Fracturing Fluids
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摘要: 针对常规的羟丙基瓜胶和有机硼交联剂压裂液体系瓜胶使用量大、残渣多、成本高等问题,通过研究新型交联增效剂,改变交联环境,使有机硼交联剂在胶体体系内可以不断提供交联所需的B(OH)4-,保证常规羟丙基瓜胶在极限的低浓度下发挥出最高的成胶性能,从而达到降低瓜胶压裂液稠化剂用量、减少压裂液残渣对地层的伤害目的,形成了一系列在45~120℃下,能有效降低瓜胶用量的低浓度压裂液体系。与常规体系相比,羟丙基瓜胶的使用量下降20%~35%,体系的残渣量减少25%~30%,但体系的耐温性能、耐剪切性能,携砂能力不变,可充分保障施工要求,降低了压裂液体系对地层的伤害,也缩短了配液时间和施工成本。Abstract: Conventional fracturing fluids formulated with hydroxypropyl guar gum (HPGG) and organoboron crosslinking agent have those problems such as high consumption of guar gum, excessive residue and high operation cost etc. Using a new crosslinking extender, the crosslinking environment can be changed, and the B(OH)4- ions necessary for crosslinking reaction are continuously provided by the organoboron in the gel fluid system, ensuring HPGG to do its utmost to gel at the lowest concentration. In this way the consumption of HPGG can be reduced, and formation damage by fracturing fluid residue can be minimized. With this theory, a series of low guar gum fracturing fluids used between 45℃ and 120℃ have been developed. Compared with conventional fracturing fluids, the consumption of HPGG in these low guar gum fracturing fluids was reduced by 20%-35%, and amount of residue reduced by 25%-30%. The temperature resistance, shearing resistance and sand carrying capacity of the low guar gum fracturing fluids are not compromised, and can satisfy the needs of field operations. The new fracturing fluids not only reduce formation damage, they also help reduce time required for fluid mixing and operation cost.
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[1] 张颖,陈大均,刘彦锋,等. 低浓度胍胶压裂液体系的室内研究[J]. 应用化工,2013,42(10):1836-1838.ZHANG Ying,CHEN Dajun,LIU Yanfeng,et al. Laboratory research for low-concentration guanidine gum fracturing fluids[J].Applied Chemical Industry,2013, 42(10):1836-1838. [2] 张玉广, 肖丹凤, 张宗雨, 等.羧甲基瓜胶压裂液的研究与应用[J]. 大庆石油地质与开发, 2011, 30(3):118-121.ZHANG Yuguang,XIAO Danfeng,ZHANG Zongyu,et al.Study and application of carboxymethyl guar fracturing fluid[J].Petroleum Geology and Oilfield Development in Daqing,2011,30(3):118-121. [3] 王博涛,刘欢,刘峰,等. 羧甲基酸性压裂液在安塞油田的应用[J]. 石油化工应用,2010,29(5):34-37.WANG Botao,LIU Huan,LIU Feng,et al.Th application of carboxymethyl acid fracturing fluid in Ansai oilfield[J].Petrochemical Industry Application, 2010,29(5):34-37. [4] DAWSON J,CRAMER D.Reduced polymer based fracturing fluid:is less really more.SPE 90851,2004. [5] 蔺吉春,李达,马得华,等. 低伤害压裂液在苏里格气田东区水平井的应用[J]. 石油化工应用, 2012, 31(12):25-28.LIN Jichun,LI Da,MA Dehua,et al.Apply the low damage fracturing in fluids horizontal well at Sue's east gas field[J].Petrochemical Industry Application,2012, 31(12):25-28. [6] 李小玲,丁里,石华强,等. 超低浓度羟丙基胍胶压裂液体系的研制及在苏里格气田的应用[J]. 石油与天然气化工,2013,42(3):274-278.LI Xiaoling,DING Li,SHI Huaqiang,et al. Development of the super-low concentration hydroxypropyl guar gelled fracturing fluid and its application in Sulige gas field[J].Chemical Engineering of Oil and Gas,2013,42(3):274-278. [7] 杨冠科,王成. 低浓度羟丙基胍胶压裂液在苏里格气田的应用[J]. 天然气与石油,2014,32(2):73-76.YANG Guanke,WANG Cheng.Application of low concentration hydroxypropylguar gum fracturing fluid in sulige gas field[J].Natural gas and oil,2014,32(2):73-76. [8] 王帅,谢元,张明,等. 低浓度羟丙基胍胶压裂液体系研究[J]. 化学工程师,2016,30(11):15-19.WANG Shuai,XIE Yuan,ZHANG Ming,et al. Research of low concentration hydroxypropyl guar gum fracturing fluid system[J].Chemical Engineer,2016,30(11):15-19. [9] 李永明, 刘林, 李莎莎, 等. 含纤维的超低浓度稠化剂压裂液的研究[J]. 钻井液与完井液, 2010, 27(2):50-53.LI Yongming,LIU Lin,LI Shasha,et al.Study on fracturing fluid having fiber and ultra-low concentration thickening agent[J].Drilling Fluid & Completion Fluid, 2010,27(2):50-53. [10] 黄贵存,马飞,李勇明,等. 致密碎屑岩气藏低伤害压裂液的研究与应用. 石油与天然气化工, 2011, 40(3):289-293.HUANG Guicun,MA Fei,LI Yongming,et al. Research and application on the low damage fracturing fluid in the tight sandstone gas reservoir[J].Chemical Engineering of Oil&Gas,2011,40(3):289-293. [11] 彭继,张成娟,周平,等. 青海油田低浓度瓜胶压裂液的性能研究与现场应用[J]. 天然气勘探与开发, 2014, 37(1):79-82.PENG Ji,ZHANG Chengjuan,ZHOU Ping,et al. Performance of low-concentration guar fracturing fluid and its application to Qinghaioilfield[J].Natural Gas Exploration and Development,2014,37(1):79-82. [12] 董景锋,汪志臣,怡宝安,等. 低浓度瓜胶压裂液体系的研究与应用[J]. 油田化学,2017,34(1):43-47.HUANG Jingfeng,WANG Zhichen,YI Baoan,et al. Development and application of guar gum fracturing fluid with concentration[J].Oilfield Chemistry,2017,34(1):43-47.
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