P.O. Box 42028 Abu Dhabi UAE.

Web : www.ipcc.ae

Tel: 00971 2 6216860

Fax: 00971 2 6216855

Program Objective:

Course Outlines:

The course will address design basics, calculations, and "field tested" rules of thumb

fundamental to achieving the successful execution of an underbalanced drilling

project.

Introduction

Candidate Screen and Selection

Project Economics

Multiphase Flow Modeling in UBD

Multiphase Flow Modeling in UBD

• Conventional & Underbalanced Drilling

• Principle Of Mud Cap Drilling

• History Of Underbalanced Operations

• Benefits Of UBD

• Business And Technical Drivers

• Standards And Nomenclature

• Good Candidate Indicators For UBD

• Drivers To The Consideration Of UBD

• Bad Candidate Indicators for UBD

• Candidate Selection

• Technical Feasibility Of UBD

• Cost Of Underbalanced Drilling

• Complexity Of The System

• Cost Savings

• Reduced Drilling Cost

• Increased ROP

• Increased Bit Life

• Reduced Fluid Cost

• Decreased Trouble Time

• Post Drilling Stimulation

• Reduced Formation Damage

• Increased Productivity

• Quantifying Productivity

• Hole Cleaning

• Other Factors Influencing Hole cleaning

• Consideration Of Foam

• Pressure Gradient Modeling In Foam

• Applications Of multiphase Flow modeling

• Data Needed For Modeling

• Hole Cleaning

• Other Factors Influencing Hole cleaning

• Consideration Of Foam

• Pressure Gradient Modeling In Foam

• Applications Of multiphase Flow modeling

P.O. Box 42028 Abu Dhabi UAE.

Web : www.ipcc.ae

Tel: 00971 2 6216860

Fax: 00971 2 6216855

• Data Needed For Modeling

• General considerations To select a Fluid

• Well Fluid Design

• ECD

• Compatibility of Fluids

• Compatibility Of Base Fluids

• Injected Fluid to Produced Fluid Compatibility

• Fluid To Formation Compatibility

• Hole cleaning Issues

• Viscous Pills

• Temperature Effects

• Corrosions

• Health And Safety Issues

• Sulfide Stress and cracking

• Environmental And disposal Issues

• Fluid System Selection

• Gas Drilling

• Mist Drilling

• Foam Drilling

• Gasified liquids

• Liquid drilling

• Separation Equipment

• Other Design Considerations

• Summery Of Operating parameters

• Margins Of safety in Design

• Conclusions

• Volume Calculations

• Pipe conveyance

• Conventional Drill Pipe system

• Coil Tubing

• Gas Injection Method

• Impact Of Drillstring Design

• Drill pipe Condition

• Connections

• Non Return Valves

• Bottom Hole Assembly

• Down Hole Equipment

• Bit Selection

• Pressures

• Hydrostatic Pressure

• Normal Formation Pressure

• Abnormal Formation Pressure

Fluids

Drilling System Design

Drilling String Design and Down Hole Tools

Formation Evaluations and Underbalanced Drilling

P.O. Box 42028 Abu Dhabi UAE.

Web : www.ipcc.ae

Tel: 00971 2 6216860

Fax: 00971 2 6216855

• Bottom Hole Pressure

• Formation Evaluation

• Open Hole Completions

• Through Tubing Completions

• Underground Cementing

• Running Completions String

• Underbalanced Snubbing

• Handling Drilling Fluid And Returns

• Safety Considerations

• Down Hole Fires

• Corrosion

• Bore Hole Stability

• Drillstring Vibration

• Hole Cleaning

• Water And Fluid influxes

• Leak In Pressure Control Equipment

• Different Problems During UBD

• Stuck pipe And Fishing

• Injection Equipment

• Rotating Control Head

• Blowout Preventer stack

• Annular Preventer

• Flow Line From Rig

• Blooey Line

• Surface Safety Valves

• Choke Manifold

• Separation Equipment

• Gas Handling Flare System

• Snubbing

• Coil Tubing System

• Accumulator Unit

Designed for engineers, technologists, wellsite supervisors, service personnel and

others involved in the design, planning and execution of underbalanced drilling

projects, will provide an excellent overview of underbalanced drilling principles.

Duration varies along with level of the candidate and the program chosen for the

course.

Environmental Effect and Underbalanced Drilling

Problems while Underbalanced Drilling

Surface Equipment

This program is designed for:

Program Duration: