Coiled Tubing Services

Coiled Tubing Services

Blog

August 2nd, 2024

Wellpro’s coiled tubing units have been designed and manufactured by Wellpro for local conditions and regulations. Our truck mounted CTU’s are highly mobile and offer the smallest operational footprint in the sector.

Our coiled tubing units are capable of the following operations:

• Well bore clean outs
• Milling
• Unloading well using Air/Nitrogen
• Formation Testing
• Installation of coiled deployed pumping systems
• Well work-overs
• Plug & Abandonment
• Packer and plugs setting/retrieving
• Chemicals stimulation & washouts
• Well stimulation
• Fishing
• Down-hole camera
• Perforation using explosives charges
• Abrasive jetting using specifically formulated sand slurry
• Memory Logging

Coiled Tubing Unit Specifications

Carrier

• Mercedes Benz 480 HP 3244L carrier – w/Amco Veba 820F handling crane (unit mounted)

Injector Unit

• Capacity: 48,000 lb pull & 30,000 lb push
• Speed high: 70m/min
• Chain tension hydraulically adjusted
• Skate pressure hydraulically adjusted

Control Cabin

• Hydraulically telescoping cabin
• Climate controlled
• Electric and hydraulic controls

Data Acquisition

• Medco real time data acquisition system

Coil Tubing Reel Capacity

• 4,000m of 1-1/4” Tubing
• 2,000m of 1-1/2” Tubing (8,000m in stock)
• 1,800m of 1-3/4” Tubing
• 1,200m of 2” Tubing
• Drive Type Hydraulic Motor & Chain

Unit Safety Features

• All operations controlled from inside controller cabin
• Unit mounted/remote emergency shutdowns
• Safety guards over chain and reel
• Secondary egress from operator cabin

Single Contractor Option for Well Plug & Abandonment

Coiled Tubing – Simulation Program

Wellpro’s Coiled Tubing Simulator is theworld’s leading commercial modelingsoftware, which allow us to provide solutions in job design

Features/Benefits

• Job design tools
• Fatigue life tracking (Achilles™)
• Tubing forces model (Orpheus™)
• Tubing stress limits (Hercules™)
• Hydraulics simulation (Hydra™)
• String design and selection
• Bottomhole assembly (BHA) configuration
• Job reporting
• Asset Management
• Real-time job monitoring

Job Design

The Coiled tubing module allows the user to input basic and important data about the wellbore geometry, deviation and equipment to be used, allowing a virtual comprehension of downhole conditions and to make a simulation or real conditions of expected parameters during the execution of the job.

The three principle stresses and the shear stress experience by the CT during a job are combine using the Von Mises Yield Condition to determine what pressure and axial force combinations will cause the CT to yield.

Hydraulics Simulation

Hypothetical fluid hydraulics situations may be modelled / calculated to determine the effects of differing variables such as type of fluids and pump rate.

Fatigue Life Tracking

Viewable in the screen are the different factors affecting fatigue life and diameter growth. In every trip the operator can recognize high fatigue points and make decisions to optimize the use of the string.

Tubing Forces Model and Stress Limits

An accurate calculation of the surface weight vs. depth is displayed in a graph as the CT is run into the well and out of the well. From the graph the user may calculate Yield Limit, Disconnect limit and Lockup limit.

The Hydra module use wizard applications to calculate data of particular type of jobs:

• Foam wizard: to optimize the fluid pump rates and pressures to desire foam quality.
• Fill removal: Calculate the minimum and maximum pump rate, pressures and annular velocity to remove fill, such as sand.
• Well unloading: Estimate the required gas in order to achieve a given target bottom hole pressure if the CT is set at different depths. This result will be helpful to select a proper gas injection depth and gas rate.

Job reporting

Based on the job parameters measured during the operation a post job report can be personalized to show a summary of job parameters acquired during the execution.

Mobile coiled tubing unit

Custom work floor minimising load transfer to well head