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中江气田高庙区块JS_3~(3-2)气层单井测试产能及生产情况在区域上差异较大;气层储集空间主要为残余粒间孔、粒间溶孔、粒内溶孔;气层测井解释孔隙度为6.4%~14.0%,渗透率为(0.03~0.86)×10~(-3)μm~2,属于典型的低孔、低渗储层。气藏目前正处于开发建产早期阶段,影响气井产能的主要因素尚不明确。利用录井、测井、薄片、测试及试采分析资料,对JS_3~(3-2)气层产能分布特征及主控因素进行研究。结果表明:JS_3~(3-2)气层3条河道实测地压系数各不相同,河道之间储层连通性较差,西部河道气井产能低,东西向河道及东部河道气井产能较高,地压系数高低与气井产能之间无明显对应关系;JS_3~(3-2)气层气井产能主要受气井构造相对位置、储层非均质性及储层有效厚度共同控制,单条河道内构造位置相对较高,孔、渗性能相对较好,储层有效厚度相对较大的气井产能较高。
The productivity and production of single well in JS_3 ~ (3-2) gas layer in the Gaomi block of Zhongjiang gas field are quite different in the region. The main reservoir space for gas reservoirs is residual intergranular pores, intergranular dissolved pores, intragranular dissolved pores The gas logging shows that the porosity is 6.4% ~ 14.0% and the permeability is (0.03 ~ 0.86) × 10 ~ (-3) μm ~ 2, which belongs to typical low porosity and permeability reservoirs. Gas reservoirs are currently in the early stages of development and production, and the main factors affecting gas well productivity are not yet clear. Based on logging, well logging, thin slice, test and test and analysis data, the productivity distribution features and main controlling factors of JS_3 ~ (3-2) gas reservoirs were studied. The results show that the measured ground pressure coefficients of three rivers in JS_3 ~ (3-2) are different, the reservoir connectivity between the channels is poor, the productivity of the western river gas wells is low, the productivity of the east and west river channels and the east river gas wells are high, The productivity of JS 3 ~ (3-2) gas wells is mainly controlled by the relative position of gas wells, reservoir heterogeneity and reservoir effective thickness, and the single channel structure The location is relatively high, the pore and permeability properties are relatively good, and the productivity of gas wells with relatively large effective reservoir thickness is higher.