Coiled Tubing Operations

Introduction

Coiled tubing is the process of running a reel of continuous tubing into a well that is still under pressure. Coiled tubing equipment is portable and modular although modern reels are reaching high transport weights and offers quick rig-up times.

The maximum working depth of coiled tubing is usually determined by the amount of tubing that can be spooled onto a reel rather than the TVD. Highly deviated wells can cause problems with coiled tubing as, like wireline, gravity is required to keep the tubing moving down the well-bore. This can now be overcome to a certain extent with the use of downhole “tractors” which pull the coiled tubing from the bottom. Coiled tubing can be used for a wide range of jobs such as, nitrogen lifting wells, clean-up operations, spotting acid at the perforations, fishing operations, spotting cement and PLT.

This GLOMACS training course will highlight:

• Coiled tubing equipment
• Well control equipment
• Coiled tubing application
• Job design
• Acidizing and stimulation techniques

Objectives

By the end of this training course, participants will learn to:

• Manage and execute coiled tubing interventions
• Increase overall operational performance during coiled tubing interventions
• Select the most commonly used downhole tools and explain their function
• Work safely with liquid nitrogen

Training Methodology

This training course wire line operations and techniques training course will be presented using properly designed slides, some and animation on relevant issues. A printed manual containing all the slides and/or electronic form in PDF will be delivered to each attendant. Teaching methods include also pre and post evaluation test on related issues.

Organisational Impact

Organisation will gain (direct and indirect) the following:  

• Employees who receive training have increased confidence and motivations
• Lower cost of production – eliminates risks because trained personnel are able to make better
• Lower turnover – brings a sense of security at the workplace which in turn reduces labor turnover
• Change management – involvement of employees in the change process

Personal Impact

Personnel will gain the following: 

• Manage and execute coiled tubing interventions
• Increase overall operational performance during coiled tubing interventions
• Select the most commonly used downhole tools and explain their function
• Work safely with liquid nitrogen