This paper introduces a new technical idea of synergistic application of temporary plugging and propping technologies to SRV fracturing, consequently effectively improving the effective stimulated reservoir volume (ESRV) in gas shales under the existing fracturing conditions. Experimental studies on factors influencing the efficiency of plugging and removal in a temporary plugging zone, as well as the residual propped fracture conductivity have been carried out. The results show that the greater the mass ratio of the temporary plugging agent to the proppant, the higher is the efficiency of the temporary plugging zone in the process of plugging. However, it is recommended to use a slow concentration of the temporary plugging agent since it is conducive to the fracture conductivity recovery of the temporary plugging zone. Thus, based on the plugging and removal efficiency evaluation in the temporary plugging zone and the formation damage rate, the weight combination formula has been developed to determine the optimal combination ratio of the temporary plugging agent with the proppant. The results show that when the optimal mass ratio of the temporary plugging agent to the proppant. The results show that when the optimal mass ratio of the temporary plugging agent to the proppant is 16%, the comprehensive performance values reach the maximum when the temporary plugging zone is composed of 40/70 of 70/140 mesh size proppant and 20/100 mesh size temporary plugging agent. The 16% mass ratio of the temporary plugging agent to the proppant is optimal, which can well meet the application requirements of the temporary plugging and propping technologies to SRV fracturing in gas shales.

本文介绍了一种将暂堵和支撑技术协同应用于SRV压裂的新技术思路，从而在现有压裂条件下有效提高气页岩有效增产储层体积(ESRV)。对暂堵带封堵排采效率影响因素及支撑裂缝残余导流能力进行了试验研究。结果表明，暂堵剂与支撑剂的质量比越大，暂堵层在封堵过程中的效率越高。但建议使用慢浓度的暂堵剂，有利于暂堵带裂缝导流能力恢复。因此，根据暂堵带封堵脱除效率评价和地层破坏率，建立了重量组合公式，确定暂堵剂与支撑剂的最佳配比。结果表明，当暂堵剂与支撑剂的质量比最佳时。结果表明，当暂堵剂与支撑剂的最佳质量比为16%时，暂堵层由70/140目支撑剂的40/70和20/100目支撑剂组成时，综合性能值达到最大值。网孔大小暂堵剂。暂堵剂与支撑剂的质量比为16%为最佳，