Chuong 1b drilling cost and drilling rate

1

Well Drilling Engineering

Drilling Cost & Drilling Rate

Dr. DO QUANG KHANH

2

Contents

 The AFE

 Drilling Cost and Bit Change

 Factors Affecting Drilling Rate

 Bit Weight, Rotary Speed

 Bottom-hole Cleaning

 Mud Properties, Solids Content

 HW #. ADE 1.12, 1.13, 1.14

3

Before getting approval to drill a well the

Drilling Engineer must prepare an AFE

- a detailed cost estimate for the well

DRY COMPLETED

HOLE

INTANGIBLE COSTS $ $

TANGIBLE COSTS $ $

TOTAL COST $ $