深层碳酸盐岩气藏储层温度、压力高，孔缝洞发育，储集类型多样，造成了各气井产能差异大，利用常规生产动态监测技术进行储层类型识别存在一定困难。因此，基于高石梯-磨溪区块典型缝洞结构特征，设计并刻蚀了裂缝-缝洞型典型缝洞结构的拟三维储集体物理模型，开展了气体示踪剂返排运移实验，明确了不同焖井时间、流动方向、气体示踪剂浓度条件下的气体示踪剂返排浓度曲线特征。结果表明：裂缝-缝洞型，孔隙度为5.93%，浓度曲线存在单峰，且强度为17.13%，拖尾时间为3 615 s，单一优势通道明显，洞结构有效延缓了气体示踪剂浓度下降的趋势。焖井时间的增加，扩大了气体示踪剂的扩散范围，降低了气体示踪剂的峰值浓度，延长了气体示踪剂的见效时间，存在一部分气体示踪剂扩散到更深的孔隙结构中，但整体峰值特征并未改变。对于孔渗条件较好的Ⅰ类储层裂缝-缝洞型而言，示踪剂的流动方向的改变均不改变其特定峰形特征，且数值差异幅度较小，而示踪剂的量不同造成了SF₆浓度曲线峰值浓度存在较大差异。

The high temperatures and pressures in deep carbonate reservoirs, coupled with well-developed pore-seam structures and diverse reservoir types, result in significant variations in production capacities among gas wells. Identifying reservoir types using conventional production dynamic monitoring techniques presents certain challenges. Therefore, based on the characteristic seam structure of the Gaoshiti-Moxi block, a quasi-three-dimensional physical model of the fracture-slit type typical seam structure has been designed and etched. Gas tracer flowback migration experiments were conducted to elucidate the gas tracer flowback concentration curve characteristics under different conditions of shut-in time, flow direction, and gas tracer concentration. The results reveal that for the Fracture fracture-cavity type with a porosity of 5.93%, the concentration curve exhibits a single peak with an intensity of 17.13%. The tailing time is 3 615 s, indicating a prominent single dominant channel. The cavity structure effectively delays the reduction trend of gas tracer concentration. Increasing shut-in time expands the diffusion range of the gas tracer, reduces its peak concentration, and prolongs its effective duration. Some of the gas tracer diffuses into deeper pore structures, yet the overall peak characteristics remain unchanged. In the case of Class I reservoirs with better pore-permeability conditions in fracture fracture-cavity type, changes in tracer flow direction do not alter their specific peak characteristics significantly. However, variations in tracer amounts lead to substantial differences in the peak concentration of the SF₆ concentration curve.