Five-zone composite model for horizontal wells with volumetric fracturing operations is characterized by high adaptability and high computation speeds. On the other hand,since the model is based on presumption of con-stant productivity,it can be used for calculation of constant productivity only. Development of unconventional reser-voir formations may involve complicated production system,and accordingly,it is very difficult to maintain constant productivity. By using overlapping principles,the five-zone composite model can be modified to cope with compli-cated production system with variable productivities,flowing pressures and other conditions. In this way,restrictions related to constant productivity of the conventional five-zone composite model can be removed effectively. In addi-tion,innovative techniques have been developed for interpretation of testing data in horizontal wells with volumetric fracturing operations in any complicated production system. Transient well test data in one well with volumetric frac-turing operations have been interpreted to highlight reservoir and fracturing parameters. It can be seen that the inno-vative technique can be used for interpretation of transient well test data in horizontal wells with volumetric fractu-ring operations under complicated production system. Relevant research results may provide necessary theoretical supports for interpretation of transient well test data in horizontal wells with volumetric fracturing for development of unconventional oil reservoirs.%体积压裂水平井五区复合模型实用性强、计算速度快,但模型基于定产假设推导,只能计算定产量生产问题,而非常规油藏生产过程中很难保证定产量生产,生产制度往往较复杂.为此,基于叠加原理,将五区复合模型改进为可以计算包括变产量、变流压等任意复杂生产制度的情形,突破了以往五区复合模型定产条件的限制.在此基础上,建立了任意复杂生产制度体积压裂水平井试井解释方法,并对一口体积压裂实例井的不稳定试井资料进行了解释,得到了储层及压裂裂缝参数,说明该方法可以解释具有复杂生产制度的体积压裂水平井不稳定试井资料.研究结果可为非常规油藏体积压裂水平井不稳定试井资料解释提供一定的理论基础.
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