A new integrative evaluation method for candidate reservoirs of hydrocarbon gas drive
Before implementing hydrocarbon gas drive, an applicable evaluation of reservoirs for hydrocarbon gas drive can improve the success rate and economic benefit. On the basis of a large amount of literature research, 11 factors affecting the hydrocarbon gas injection development have been screened out. These 11 factors constitute the suitability evaluation indexes of candidate reservoirs for hydrocarbon gas drive. Meantime, the classification of 11 evaluation indexes has also been set up, and fuzzy statistical method, analytic hierarchy process, and expert assessment method have been adopted to obtain the weight value of each evaluation index. Three candidate reservoirs have been taken for example; using multi-level fuzzy comprehensive evaluation to optimize the most suitable candidate reservoir, the potential size of three candidate reservoirs for hydrocarbon gas drive is provided. By comparing the evaluation results with the numerical reservoir simulation results, the evaluation method not only gives a cor...