O'Reilly logo

Well Test Analysis for Multilayered Reservoirs with Formation Crossflow by Chengtai Gao, Hedong Sun

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 2

Single-Phase Fluid Flow in a Two-Layer Reservoir with Significant Crossflow

Abstract

Single-phase flow of a slightly compressible fluid is considered in a two-layer, infinite reservoir. The layers are separated everywhere by a semipermeable barrier, which allows significant crossflow. Solutions are obtained for pressure response and crossflow during drawdown and buildup tests when both layers are perforated and when only one layer is completed.

The numerical results provided an asymptotic analytical solution for pressure and crossflow, in terms of a modified Boltzmann variable. Analytical approximations were discovered for crossflow, which apply during “middle” times (the time before area crossflow rate reaches it's stationary limit). ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required