AFA Documentation
AFA Documentation
Breadcrumbs

Hydraulically Fractured Vertical Wells

Introduction

In traditional single bi-wing fractures in a vertical well, fluid can move perpendicular to the fracture face, and then parallel (within in the fracture) to the wellbore.


image-20240405-043449.png
A: Flow Perpendicular to the Fracture Face
image-20240405-043534.png
B: Flow inside the fracture (parallel) to the wellbore

The graphic below shows the 3D pressure profile for a rectangular reservoir with linear flow in finite conductivity fracture is shown below:


image-20240405-060554.png

If the fracture conductivity is very high, there may be no/minimal pressures losses due to the flow inside the fracture resulting in Pure Linear Flow.

If the fracture conductivity is low, there may be substantial pressure losses due to the flow inside the fracture resulting in BiLinear Flow

Types of Fracture Models:

AFA has available two types of fracture models:

References:

  • B. Guo, Well Productivity Handbook: Vertical, Fractured, Horizontal, Multilateral, and Intelligent Wells, 2008