CAJ | 학술논문

研究的新型缔合压裂液（GRF压裂液）无造壁性，因此，设计了一种适合此类压裂液滤失量测定的简易装置并制定了其滤失测定方法，评价结果表明其滤失性能较好。利用RS6000流变仪及岩芯驱替装置研究了GRF压裂液的黏弹性对其在多孔介质中渗流阻力的影响，结果表明：GRF由于具有优良的黏弹性，能在岩芯孔隙中建立有效的渗流阻抗R0，并且黏弹性越强、岩芯渗透率越低，R0就越大，压裂液渗流越困难；而液体表观黏度和黏弹性对滤失的影响实验结果进一步表明，液体黏弹性是压裂液滤失控制的最主要因素，因此提出了GRF压裂液黏弹性控制滤失的理论。
연구적신형체합압렬액（GRF압렬액）무조벽성，인차，설계료일충괄합차류압렬액려실량측정적간역장치병제정료기려실측정방법，평개결과표명기려실성능교호。이용RS6000류변의급암심구체장치연구료GRF압렬액적점탄성대기재다공개질중삼류조력적영향，결과표명：GRF유우구유우량적점탄성，능재암심공극중건립유효적삼류조항R0，병차점탄성월강、암심삼투솔월저，R0취월대，압렬액삼류월곤난；이액체표관점도화점탄성대려실적영향실험결과진일보표명，액체점탄성시압렬액려실공제적최주요인소，인차제출료GRF압렬액점탄성공제려실적이론。
A new associated fracturing fluid(GRF)with non-building capacity was studied in this paper. Because it has no wall building capacity,a simple device for filtration measurement suitable for this kind of fracturing fluid was designed, and the methods for filtration measurement were also developed. The evaluation results show that the filtration property of GRF is better than before. The influence of the viscoelasticity on filtrational resistance in the porous medium was studied with RS6000 flowage meter and the core displacement device. The results show that GRF fracturing fluid can establish effective filtrational impedance(R0)in core pore owing to its excellent viscoelasticity;the stronger the viscoelasticity is and the lower the core permeability is,the larger R0 is,and the more difficult the fracturing fluid filtrates;the test results further indicate that the viscoelasticity of the liquid is the most important factor to filtration controlling,and the influence of apparent viscosity and viscoelasticity on the fluid loss was studied in the paper. Therefore we conclude that viscoelasticity of GRF fracturing fluid can control its filtration.