Research And Field Application On Cement Slurry System Of Exhausted Gas Storage Reservoirs

As effective means of gas peaking during peak function as well as its strategicreserves,gas storage has been received national attention in recent years.However, due to thecomplexity of the working environment and conditions of the reciprocating injection, gasstorage wells cementing make more stringent requirements and more difficult thanconventional oil and gas well cementing.On the anti-cementing properties of the slurry gaschanneling requirements are prominently high, and the production process requires injectioncement to have a better deformation under cyclic stress.In this paper, for the slurry system performance requirements on gas storage wellscementing operations and production operations, carry out the design and application ofslurry system.Analyse silicon micro-elastic material, fluid loss, latex and other performanceadditives influence for cement slurry, optimize the amount of each additive plus.Fromrheology, water loss, thickening time, sedimentation stability, mechanical properties andanti-channeling performance aspects of the configuration,do the overall evaluation of theslurry,and optimize a new gas storage suitable for cementing slurry system.The designedslurry system successfully used depleted gas reservoir-type gas storage wells Su203-6-9andSu49K-P1, the construction was smooth, and the quality of cementing was high.Provide ascientific and reasonable technical support for depleted gas reservoir-type gas storage wellscement slurry system developing.