清水对页岩微裂缝导流能力损伤影响
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摘要
针对清水对非支撑剂微裂缝导流能力影响的问题,采用四川龙马溪组页岩,将岩心置于清水做浸泡实验后注气干,分析浸泡前后渗透率的变化,并与含支撑剂微裂缝页岩导流能力实验做对比。研究结果表明:注气过程中,渗透率呈增高的总体趋势,且主要在后期升高幅度较大,至最后气测渗透率稳定,其测渗透率增高了约8倍。与含支撑剂微裂缝导流实验对比,本实验中岩样水化前后渗透率下降幅度更大,达到了90%。
引文
1 La Follette,R.F.,Carman,P.S.,2013.Comparison of the Impact of Fracturing Fluid Compositional p H on Fracture Wall Properties in Different.Shale Formation Samples.Paper SPE 166471 presented at the SPE Annual Technical Conference and Exhibition,New Orleans,Louisiana,U.S.A.,30 September–2 October.
2 Akrad,O.,Miskimins,J.Prasad,M.,2011.The Effects of Fracturing Fluids on Shale Rock Mechanical Properties and Proppant Embedment.Paper SPE 146658 presented at the SPE Annual Technical Conference and Exhibition,Denver,Colorado,U.S.A.,30 October-2 November.
3 Lin,S.,Lai,B.,2013.Experimental Investigation of Water Saturation Effects on Barnett Shale's Geomechanical Behaviors.Paper SPE 166234 presented at the SPE Annual Technical Conference and Exhibition,New Orleans,Louisiana,U.S.A.,30 September–2 October.
4 Zhang,J.,Kamenov,A.,Zhu,D.,Hill,A.D.,2015.Development of new testing procedures to measure propped fracture conductivity considering water damage in clay-rich shale reservoirs:An example of the Barnett Shale.J.Journal of Petroleum Science and Engineering 135(2015)352–359
5 马东民,张遂安,蔺亚兵.煤的等温吸附-解吸实验及其精确拟合[J].煤炭学报,2011(3):477-480.
6 冒海军,郭印同,等.黏土矿物组构对水化作用影响评价[J].岩土力学,2010,31(9):2723-2728.
2 Akrad,O.,Miskimins,J.Prasad,M.,2011.The Effects of Fracturing Fluids on Shale Rock Mechanical Properties and Proppant Embedment.Paper SPE 146658 presented at the SPE Annual Technical Conference and Exhibition,Denver,Colorado,U.S.A.,30 October-2 November.
3 Lin,S.,Lai,B.,2013.Experimental Investigation of Water Saturation Effects on Barnett Shale's Geomechanical Behaviors.Paper SPE 166234 presented at the SPE Annual Technical Conference and Exhibition,New Orleans,Louisiana,U.S.A.,30 September–2 October.
4 Zhang,J.,Kamenov,A.,Zhu,D.,Hill,A.D.,2015.Development of new testing procedures to measure propped fracture conductivity considering water damage in clay-rich shale reservoirs:An example of the Barnett Shale.J.Journal of Petroleum Science and Engineering 135(2015)352–359
5 马东民,张遂安,蔺亚兵.煤的等温吸附-解吸实验及其精确拟合[J].煤炭学报,2011(3):477-480.
6 冒海军,郭印同,等.黏土矿物组构对水化作用影响评价[J].岩土力学,2010,31(9):2723-2728.