Abstract

A mathematical model describing thermohydrodynamic processes in an oil reservoir opened by a horizontal well has been developed. An inverse problem for estimating the filtration parameters of the oil reservoir is formulated. Temperature–time and pressure–time curves obtained simultaneously by several autonomous downhole devices placed in different sections of the wellbore of a horizontal well are used as initial information. It is shown that the solution of the inverse problem based on numerical simulation and regularization methods makes it possible to construct the inflow profile along the wellbore of a horizontal well and estimate the reservoir properties of bottomhole and remote zones of the reservoir and the radii of bottomhole zones in the vicinity of downhole devices.

中文翻译：

---

从水平井热力动力学研究结果评价油藏的过滤性能

摘要

已经建立了描述由水平井打开的油藏中的热流体动力学过程的数学模型。提出了用于估计油藏的过滤参数的反问题。由水平井井筒不同部分中的几个自主井下设备同时获得的温度-时间和压力-时间曲线被用作初始信息。结果表明，基于数值模拟和正则化方法的反问题求解，可以构造出水平井沿井筒的入水剖面，并估算出井底和远隔区的储层性质以及井底半径井下设备附近的区域。