Evaluation And Research On The Development Plan Of The Hui Shaped Well Pattern Of Heavy Oil Steam Drive

At present,the hui-shaped well network employed in the block X thick oil steam drive is Associate in Nursing innovative well network,that is that the initial of its kind reception and abroad,and its understanding isn't deep enough.Therefore,the aim of this thesis is to judge the effectiveness of hui-shaped well network steam drive development through a mix of numerical simulation and mathematical strategies,and to propose analysis criteria and suggestions for additional changes.A three-dimensional fine earth science model of Block X was established and numerical simulations were applied to the event history from steam output to steam drive as an entire to totally perceive the phenomena like fossil oil enrichment between wells and totally different degrees of utilization between formations within the production and development of hui-shaped well networks,in conjunction with the distribution rules of productive saturation field,pressure field and temperature field.Based on the in-depth understanding of this production development impact of hui-shaped well network steam drive,the inverse nine-point well network theme was designed to simulate the event impact supported the present production wells and dealing system in Block X.The distribution patterns of productive saturation field,pressure field and temperature field of hui-shaped well network and anti-nine-point well network ar compared,and therefore the application impact of hui-shaped well network is evaluated and therefore the adjustment theme of hui-shaped well network steam drive development is projected by combining the sphere dynamic observance information of Block X.It analyses the steam drive mechanism of hui-shaped well networks,reservoir characteristics,well network structure characteristics and production characteristics,conducts numerical simulations and mathematical ways to review the necessary parameters poignant the steam drive development impact of hui-shaped well networks,ANd establishes an analysis technique combining mathematical models and numerical simulations to dynamically valuate the steam drive impact of hui-shaped well networks.AN analysis system consisting of hui-shaped well network steam drive injection and recovery parameters,well network structure,steam overburden degree,productive saturation field,pressure and temperature field distribution,reservoir earth science and steam drive development stage indicators was developed.Finally,supported the calculation model of recovery rate prediction by the injection and recovery relationship technique,the dynamic analysis technique and criteria square measure established by introducing the reservoir production characteristics parameters and considering the necessary factors poignant the ultimate recovery rate,like the geologic parameters of hui-shaped well network steam drive and injection and recovery parameters,and therefore the dynamic theoretical plate used for the analysis is given.The study can more improve the theoretical aspects of hui-shaped steam-driven well networks in terms of analysis ways and analysis criteria,enrich the theoretical system of hui-shaped steam-driven well networks,promote a additional adequate basis,offer a theoretical basis and steering for the event and adjustment of hui-shaped steam-driven well networks within the field,and is of nice importance for the institution of a hui-shaped steam-driven well network analysis system.