近年来，柴达木盆地基岩气藏展示了良好的勘探开发潜力。盆地内昆特依气藏昆2区块作为超深基岩气藏，其复杂的地质内幕、强非均质性储层和裂缝-溶蚀孔双介质特征，为储层预测与有利区优选带来了严峻的挑战。综合地质、测井、地震和生产动态资料，创新“井震结合-静动态融合-多属性协同”一体化研究方法，系统开展储层特征表征与天然气富集区预测，旨在揭示超深层基岩储层空间展布规律，指导井位优化部署。研究结果表明：①昆2区块基岩储层以花岗片麻岩为主，储集空间为裂缝与溶蚀孔双孔介质，裂缝呈网状发育，平面上呈北东—南西向条带状分布，横向非均质性显著，裂缝密度介于3~10 m^-1，裂缝孔隙度平均0.015%，基质孔隙度主频分布于1.8%~6.8%，整体表现为致密低渗特征。②溶蚀孔发育受断裂控制，沿昆1号、昆2北和昆101北断层分布，形成缝-孔耦合储集体，基岩顶面以下100~300 m段为溶蚀孔集中发育带，储层厚度高值区达200 m。③创新性融合最大似然属性与结构张量-波阻抗反演技术，实现裂缝与溶蚀孔空间分布的高精度刻画：最大似然属性预测显示，高角度裂缝主要分布于断层上升盘，与成像测井吻合率达85%；结构张量属性结合波阻抗反演揭示，溶蚀孔发育区与断裂走向高度一致，验证了断裂活动对溶蚀作用的控制机制。④基于储层分类评价标准，结合地震预测与动态生产资料，首次提出“断裂控缝、缝控孔”的储层发育模式，明确上盘构造高部位为天然气富集核心区。最终优选出上盘4个、下盘1个天然气富集区，其中昆2北断层两侧条带状区域为最优靶区。

In recent years, basement gas reservoirs in Qaidam Basin have demonstrated significant potential for exploration and development. The Kun 2 block in Kunteyi gasfield, as an ultra-deep basement gas reservoir, poses significant challenges for reservoir prediction and favorable area selection due to its complex internal geology, strong heterogeneity, and dual-porosity characteristics of fractures and dissolution pores. By integrating geological, logging, seismic, and production data, this study developed an innovative integrated method combining “well-seismic integration, static-dynamic fusion, and multi-attribute synergy” to systematically characterize reservoir characteristics and predict natural gas accumulation zones, aiming to reveal the spatial distribution of ultra-deep basement reservoirs and provide guidance for the optimization of well placement. The results showed that: (1) The basement reservoirs in the Kun 2 block primarily consisted of granitic gneiss, with storage spaces characterized by a dual-porosity system of fractures and dissolution pores. The fractures exhibited a network-like development and were distributed in NE-SW trending bands in the plane view. Lateral heterogeneity was significant. The fracture densities ranged from 3 to 10 m^-1, the average fracture porosity was about 0.015%, and the matrix porosity ranged from 1.8% to 6.8%. Overall, this demonstrated tight and low-permeability characteristics. (2) The development of dissolution pores was fault-controlled, primarily distributed along Kun 1, North Kun 2, and North Kun 101 faults. These faults formed fracture-pore coupled reservoirs. The interval 100-300 m below the top of the basement was a concentrated development zone, with the maximum reservoir thickness reaching up to 200 m. (3) The innovative integration of maximum likelihood attributes and structure tensor-acoustic impedance inversion technologies achieved high-precision characterization of the spatial distribution of fractures and dissolution pores. The prediction of maximum likelihood attributes revealed that high-angle fractures were mainly located on the upthrown side of faults, exhibiting an 85% consistency rate with imaging logging results. Additionally, the structure tensor-acoustic impedance inversion revealed that zones of dissolution pore development aligned closely with fault orientations, thereby validating the controlling mechanism of fault activity on dissolution process. (4) Based on reservoir classification and evaluation criteria, along with seismic prediction and dynamic production data, this study proposed a reservoir development model of “fault-controlled fractures, fracture-controlled pores” for the first time, indicating structurally high positions on upthrown side as the core zones of natural gas accumulation. Five favorable areas for natural gas accumulation were selected, including four on the upthrown side and one on the downthrown side. Among them, the NE-SW strip zones on both sides of the North Kun 2 Fault were identified as the optimal target areas.