This course has been developed with the principle of "Prevention is better than Cure" in mind. It aims to provide participants with a comprehensive understanding of three common mechanisms of stuck pipe, the underlying causes for each mechanism, and how to recognize warning signs. Participants will also learn how to perform trend analysis and develop the ability to interpret the "language of the well" by listening attentively.

The course includes a table for identifying stuck pipe mechanisms and provides recommended initial actions for each scenario. To enhance the learning experience, the course incorporates real-life case histories of stuck pipe incidents. Additionally, participants will gain knowledge about formations and borehole instability issues, along with guidelines for implementing best practices during tripping operations.

Course Objectives:

At the end of this course participants will:

Identify the three sticking mechanisms and their causes
Recognize the sticking causes at an early stage and what preventive actions to take before full sticking develops
Understand the fundamentals of hole cleaning
Discover techniques on stuck pipe prevention
Learn to “listen to the well”
Perform trend analysis of drilling parameters
Read a stratigraphic column with identification of potential problem formations
Review case histories with in-depth analysis.
Understand the workings of drilling jars, pump open force, and jarring load calculations
Appreciate the team approach and the need for good communication
Identify the sticking mechanism and what “First Actions” to take to free a stuck pipe

Who Should Attend?

Drilling crews
Rig Managers
Drilling Foreman
Drilling engineers
Mud engineers
Wellsite geologists
Directional drillers
Drilling contractors staff

Course Outlines:

Introduction to Oil & Gas Drilling

Oil and gas development
Formations, rock pressure, fluid traps
Fundamentals of petroleum
Basic geology

Major Causes of Lost Time

Definitions
Global statistics
Stuck pipe causes and mechanisms

Rock Mechanics

Stratigraphic column
Deviated and horizontal wells
Wellbore stresses and instability
Drilling window
Drilling fluid properties and mud weight

Identification of Sticking Mechanisms

Use of identification table
Hole pack-off / bridging
Wellbore geometry
Differential sticking
“First Actions”

Drilling Jars

Types of drilling jars
How jars work
Pump-open force
Calculation of jarring loads
Why jars don’t work
Jars placement

Hole Pack-Off / Bridging

First mechanism
Causes
Drilled cuttings – bit
Caving – not from bit
Causes of insufficient hole cleaning
Annular velocity
Hole angle
Boycott effect
Pipe rotation
Hole cleaning guidelines
“First Actions”

Causes of bore hole instability
Tripping guidelines

Well is Talking

Drilling parameters recording
“Learning to Listen” – trend analysis

Wellbore Geometry

Second mechanism
Causes
Key seating
Ledges and doglegs
Under-gauge hole
Collapsed casing
Junk

Shoe joint back-off
“First Actions” FIRST ACTIONS

Differential Sticking

Third mechanism
Fire prevention triangle and differential sticking prevention square

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