低渗透油藏压裂选层方法研究及应用

受油藏属性的限制,Q油田大批次的井需要压裂,部分井进入了二次或者二次以上的压裂,所以压裂选层已经成为该油田的重要工作.为了避免传统压裂选层的经验性和主观性,依据多口压裂井的效果与压裂参数间关系,应用层次分析法(AHP)建立起了适合Q油田的压裂选层模型.通过模型求解与实际应用给出了选层方法,并对候选层段进行了优劣排序,定量判断合适的压裂层段.研究成果可为Q油田压裂选层工作做出重要指导意义,减少人为的主观因素,提高选层的准确性和时效性.

Study and application of fracturing selection method in low permeability reservoir

Due to the limitation of the oil reservoir, the well needs to be fractured in the large batch of Q oilfield, some wells have entered two or more than two times, so the selection of layer for fracturing has become the important work of the oil field. In order to avoid the traditional selection of layer for fracturing of empirical and subjective, it base on the relationship between multiport fracturing wells and fracturing parameters and apply analytic hierarchy process (AHP) to establish for the Q oilfield selecting fractured layer model. The layer selection method is given by solving and the practical application, and the advantages and disadvantages of the candidate layer are sorted. The research results can provide important guiding significance for Q oilfield fracturing selection work, and reducing the human factors, improve the accuracy and timeliness of the layer.