强水淹油气藏成功改建储气库

Core Insights - The successful completion of the pilot test for the Ma19 gas storage project marks a significant advancement in the feasibility study phase, establishing it as a pioneer in the transformation of water-flooded oil reservoirs into gas storage facilities in China [1][2] Group 1: Project Overview - The Ma19 gas storage facility is part of the Liaohe Oilfield, which is the largest peak-shaving and supply guarantee center in Northeast China, evolving from a single model of depleted oil and gas reservoirs to a diversified development model that includes various types of gas storage facilities [1] - The Ma19 project faces challenges such as unclear gas drive liquid discharge efficiency and ambiguous operational models, highlighting the difficulties in transforming water-flooded oil reservoirs into gas storage [1][2] Group 2: Research and Development Efforts - The research team at the Liaohe Oilfield Exploration and Development Research Institute focused on four core challenges: feasibility of construction, injection and production capacity, construction efficiency, and construction methods [2] - Innovative approaches were taken, including the introduction of an "asynchronous injection and production" operational model, which effectively addresses rapid gas channeling issues during high-permeability gas injection processes, facilitating the initial formation of an artificial gas cap [2] - The successful pilot test represents a major breakthrough in the construction of gas storage facilities, transitioning from a "single-type" to a "diversified" model, and achieving significant advancements in the technology for transforming water-flooded oil reservoirs into gas storage [2]