Mud Weight
Drilling Mud Additives: Types, Functions and Examples
Learn the main groups of drilling mud additives, what each one does, and common examples such as barite, bentonite, PAC and KCl.
What Is a Well Kick? Causes, Warning Signs and Control
A kick is an unwanted flow of formation fluid (gas, oil or water) into the wellbore. It happens when the pressure of…
How to Calculate Hydrostatic Pressure: Formula, Examples and Calculator
Hydrostatic pressure is the pressure created by the weight of a column of fluid at rest. In drilling, it is the pressure…
Drilling Mud and its Additives
In the years since drilling muds were first used in exploratory and development wells, the technology has undergone many changes. Today, better…
Overview of Well Planning
Drilling an oil or gas well plays a key role in overall field development. Good well planning makes sure the well is…
The Leak-off Test
The leak-off test (LOT) is the most reliable way to find the maximum mud weight allowed in the open-hole section of a…
