Application of coiled tubing dynamic monitoring technique inXiangguosi Gas Storage

The injection-production capacity of injection-production wells for gas storage is a key parameter in the design of gas storage engineering and determines the maximum emergency regulating capacity of gas storage, so it is especially important to accurately evaluate the injection-production capacity of drilling injection-production wells. In view of large deviation angle, long horizontal section, complex injection and production string structure and forced injection and production for Xiangguosi Gas Storage, analysis was conducted to the suitability of dynamic monitoring technique, the coiled tubing dynamic monitoring tool and job scheme was optimized, and coiled tubing dynamic monitoring was conducted at site on two injection-production wells under high steam injection condition, and the dynamic monitoring data was obtained. Evaluation and analysis of field operation technology, matching tools and monitoring data show that the coiled tubing dynamic monitoring technique can satisfy the dynamic monitoring operation for injection-production wells for gas storage, the obtained data is true and reliable, and the technique can provide sufficient basis for determining the maximum peak load regulating capacity of injection-production wells and regulation of injection-production wells and is of reference significance to the work of dynamic monitoring for gas storage injection-production wells.