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Mechanics of Hydraulic Fracturing, 2nd Edition by Xiaowei Weng, Ching H. Yew

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Chapter 1

Fracturing of a wellbore and 2D fracture models

Abstract

The early fracture models are reviewed. And, the effects of dry zone and filter-cake on the behavior of a hydraulically induced fracture are discussed in this chapter.

Keywords

Constant height fracture

Breakdown pressure

KGD model

PKN model

Circular fracture

Energy method

Dry zone

Filter-cake

Poroelasticity

Introduction

The hydraulic fracturing process has been employed to enhance the production of oil and gas from underground reservoirs for many decades. In the process, the frac-fluid is pumped at a high pressure into a selected section of wellbore. This fluid pressure creates one or more fractures extending into the rock medium that contains oil or gas. Since the fracturing ...

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