A Study On Sulige Tight Sand Gas Reservoir Fracturing Effects Evaluation

Sulige has great pressure in production upgrading. But we have no effective methodto appraise the fraeturing effect in the tight sand gas reservoir at present. Therefore，Basing on deliverability information， using stepwise regression method to evaluateaffection level. evaluate it in deliverability and fracture feature.The thesis combineSulige xiandaoxing Shiyanqu condition and relevant profession standardized. Confirmevaluate it in deliverability and fissure,then synergistic evaluation. Though deliverabilityevaluation,we know that both one point method test and modified isochronal test is fitfor Sulige.Using fracturing curve, FracproPT, earth tremor, non-stabilized well test, evaluatefissure in these hands,for example, geometry, flow conductivity, symmetry and so on. Atlast，owing to the fact that fracturing effect is influenced by many factors，so we establisha suit of the method of fuzzy mathematics comprehensive evaluation to appraise itseffect.In the way，the method shows that the evaluation results are much more reliablethan ever.A case study sudong59-34H1well and another case study Sulige fracturingtechnology are used in the thesis.