A New Fracturing Fluid with Temperature Resistance of 230℃
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摘要: 目前使用的天然植物胶压裂液,耐温极限约为177℃。为了解决压裂液的耐超高温问题,通过大量的室内实验,筛选出新型的超高温稠化剂、耐高温的锆交联剂、高温稳定剂和有效的破胶剂,形成了一种耐温在200~230℃的超高温压裂液体系。实验结果表明,这些添加剂协同作用下,形成适用于地层温度高于常规冻胶耐温极限的超高温聚合物压裂液体系,该压裂液在230℃时具有很好的耐温耐剪切性能,并且显著降低了聚合物用量,可以实现完全破胶,对支撑剂导流层的伤害小。Abstract: The natural vegetable gum fracturing fluid presently in use works effectively at temperatures up to 177℃. To fracture formations with higher temperatures, a fracturing fluid with temperature resistance of 200-230℃ has been developed with ultrahigh temperature thickening agent, high temperature resistant zirconium crosslinking agent, high temperature stabilizer and efficient gel breaker through large quantity of laboratory experiments. The experimental results showed that, under the synergetic effect of these additives, the fracturing fluid is suitable for use in fracturing formations whose temperatures are higher than the temperature limit of conventional gels. The fracturing fluid has good shear-resistance property at high temperatures up to 230℃, and the polymer consumption for formulating the fracturing fluid is obviously reduced. Complete gel breaking can be realized with the fracturing fluid, and damage to the fluid conducting formations with proppants is low.
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Key words:
- Fracturing fluid /
- Ultra high temperature /
- Synthetic polymer /
- Crosslinking agent /
- Gel breaker
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[1] FUNKHOUSER G P,Lewis R N.Methods of fracturing subterranean zones penetrated by well bores and fracturing fluids therefor[P].Patent 6986391,2006. [2] GARY P FUNKHOUSER,JEREMY HOLTSCLAW. Hydraulic fracturing under extreme HPHT conditions:successful application of a new synthetic fluid in south texas gas wells[J].SPE 132173,2010. [3] GUPTA S D V,CARMAN PAUL.Fracturing fluid for extreme temperature conditions is just as easy as the rest[J].SPE 140176,2011. [4] LEE W,MAKARYCHEV-MIKHAILOV S M,LASTRE BUELVAS M J,et al.Fast hydrating fracturing fluid for ultrahigh temperature reservoirs[J].SPE 172018, 2014. [5] FENG LIANG,GHAITHAN AL-MUNTASHERI, LEIMING LI."Maximizing performance of residuefree fracturing fluids using nanomaterials at high temperatures"[J].SPE 180402,2016. [6] 何春明,陈红军,刘超,等.高温合成聚合物压裂液体系研究[J]. 油田化学,2012,29(1):65-68.HE Chunming,CHEN Hongjun,LIU Chao,et al.Study of high temperature synthetic polymer fracturing fluid[J]. Oilfield Chemistry,2012,29(1):65-68. [7] 杨振周,陈勉,胥云,等. 新型合成聚合物超高温压裂液体系[J]. 钻井液与完井液,2011,28(1):49-51.YANG Zhenzhou,CHEN Mian, XU Yun,et al. Research of new high temerature synthetic polymer fracturing fluid[J].Drilling Fluid & Completion Fluid, 2011,28(1):49-51. [8] 段贵府,胥云,卢拥军,等.耐超高温压裂液体系研究与现场试验[J].钻井液与完井液,2014,31(3):75-77.DUAN Guifu, XU Yun,LU Yongjun,et al.Study and field application of an ultrahigh temperature fracturing fluid[J]. Drilling Fluid & Completion Fluid,2014,31(3):75-77. [9] 才博,张以明,金凤鸣,等. 超高温储层深度体积酸压液体体系研究与应用[J]. 钻井液与完井液,2013, 30(1):69-72.CAI Bo,ZHANG Yiming,JIN Fengming,et al. Research on acid fracturing system with improving stimulated reservoir volume[J].Drilling Fluid & Completion Fluid,2013,30(1):69-72. [10] ISO 13503-5:2006 Procedures for measuring the longterm conductivity of proppants[S]. [11] ISO 13503-1:2011 Measurement of viscous properties of completion fluids[S].
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