产品展厅>>项目研发>>缝洞型储层产能评价方法研究

油藏受断溶控制,缝洞结构复杂、组合模式多样,且井间连通状况好,单井产能评价和预测需综合考虑缝洞结构和井间连通性影响。通过项目研究,在广泛掌握现有各类产能评价方法的基础上,结合油藏实际特点,分析缝洞型油气藏产能评价影响因素,针对性的开展瞬时和长期产能评价方法研究,形成断熔体缝洞型油气藏不同开发方式下的合理产能评价、预测技术,最终编制形成软件,高效便捷的服务现场产能评价工作。

地层中流体高压物性参数计算方法研究,针对油相高物性参数,产能计算中尽量采用实验室测量的数值,在无法获得实验室测量数据情况下,采用本软件提供的组件

计算。

油井的常规产能计算方法:Vogel法产能、Fetkovich法产能、Jones产能、Wiggins法产能、顺北地区产能经验公式。

建立缝洞型油藏的流动数学模型。

缝洞型油藏动态产能方法研究。

软件采用组件模式进行软件研发。

由产能试井进行产能预测是国内外普遍采用的方法,但产能试井方法自上世纪50年代提出以来一直没有改进,由于产能试井要求每个流量下的压力必须稳定,在实际的产能试井中,井底压力往往难以稳定,导致产能预测结果存在误差,同时计算的产能不随时间变化。针对缝洞型油气藏产能评价及预测,目前国际上还没有相关产品。

Products>>Project Development>>Study on Productivity Evaluation of Fracture-Hole Reservoir

The reservoir is controlled by fault solution, the fracture and hole structures are complex and the combinations are various, and the cross-well connectivity is good. The influence of fracture-hole structure and cross-well connectivity should be considered comprehensively in the evaluation and prediction of single well productivity. Through the project research, on the basis of the existing productivity evaluation methods, combined with the actual characteristics of the reservoir, this project analyzes the influencing factors of productivity evaluation of fracture-hole oil and gas reservoirs, carries out the research on instantaneous and long-term productivity evaluation methods, and forms reasonable productivity evaluation, prediction technology under different development methods of faulting solution fracture-hole type oil gas reservoir, finally the software and the efficient and convenient in-situ service and production evaluation are completed.

The calculation of high pressure physical parameters of fluid in formation, according to the high physical parameters of oil phase, the laboratory measured values are used in the productivity calculation as far as possible, and the components provided by this software are usually calculated under the condition of lacking laboratory measurement data.

The conventional productivity calculation methods of oil wells are: Vogel productivity, Fetkovich productivity, Jones productivity, Wiggins productivity, and the empirical formula of productivity in Shunbei area.

The flow mathematical model of fracture-hole reservoir is established.

Study on dynamic productivity method of fracture-hole reservoir.

The software adopts the component mode to carry on the software research and development.

Productivity prediction by productivity well testing is a widely used method domestic and abroad, but the productivity test method has not been improved since 1950s. Because productivity testing requires that the pressure under each flow rate must be stable, in the actual productivity test, the bottom hole pressure is not stable, resulting in errors in productivity prediction results, and the calculated productivity does not change with time. At present, there are no related products in the world for the evaluation and prediction of fracture-hole oil and gas reservoir productivities.