The carbonate reservoir of Hojagurluk gas field has strong asisotropy, complex flow characteristics and large production differences. In order to clarify the reservoir types and productivity characteristics of gas wells and provide reference developing appropriate strategies for different types of gas wells, this paper utilizes productivity tests and pressure buildup test data. Combined with static data such as geological structure, reservoir properties, and connectivity characteristics of the gas field, the study investigates reservoir types and analyzes the factors controlling high productivity. The results show that the pressure buildup test curves mainly exhibit three characteristics: homogeneous, dual-porosity, and single-fracture. Gas wells in the structurally higher parts of the field have stronger production capacity, while wells in the flanks have weaker production capacity. The fracture development is better in the area close to the fault. The study also found that high-production gas wells have a large additional skin factor generated by flow rate, The true skin can be calculated through variable-rate pressure buildup tests. Most gas wells experience liquid fallback in the wellbore during pressure buildup tests, leading to abnormal drops in the pressure buildup curves due to liquid accumulation at the wellbore bottom. In the subsequent dynamic monitoring process, it is necessary to place the pressure gauge as close to the bottom of the well as possible to minimize the impact of liquid accumulation. These findings can guide the design and interpretation of future well testing programs in the gas field and provide a reference for developing different strategies for gas well development.