Well Integrity and Control
Presented by: Martin Geddes
Offshore Completion Systems Meeting the Reservoir Needs
©2013 Weatherford International Ltd. All rights reserved. Incorporates proprietary and patented technology.
We start our Completions from the reservoir up.
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Convention #27
Some Completion teams can only
operate down to the reservoir level.
©2013 Weatherford International Ltd. All rights reserved. Incorporates proprietary and patented technology.
To implement tailored Completions that…
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Our philosophy:
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Maximise your return.
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Reduce Your risk.
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Meet the life of field needs of your asset.
©2013 Weatherford International Ltd. All rights reserved. Incorporates proprietary and patented technology.
We do this by…
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©2013 Weatherford International Ltd. All rights reserved. Incorporates proprietary and patented technology. 9 ©2013 Weatherford International Ltd. All rights reserved. Incorporates proprietary and patented technology.
Targeting multiple zones per well to minimise drilling and completion costs.
©2013 Weatherford International Ltd. All rights reserved. Incorporates proprietary and patented technology.
Reliable Open Hole Zonal Isolation
Proven Open Hole Sealing Capability
Less than 180psi radial stress exerted on the borehole
Capable of supporting high axial loads.
Operate up to 150oC Bottom Hole temperature
Proven sealing capability at minimum and maximum
temperature and over multiple temperature swings in
excess of 100oC
Capable of operating in low and high temperature
swing conditions.
Set without washpipe
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©2013 Weatherford International Ltd. All rights reserved. Incorporates proprietary and patented technology.
Compression/Propped Packer High Stress Loading on the Rock Face
Cup Seal Element is shown to induce very low stress on the Rock Face
Conventional Set Packer vs. Weatherford Cup Packer
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Assisting with selection of the most appropriate sand control technique for your application.
©2013 Weatherford International Ltd. All rights reserved. Incorporates proprietary and patented technology.
Technical Centre of Excellence
Petroleum and Reservoir Engineering
Sand Control Expertise
Rock Mechanics
Lab testing and Research
Materials Engineering
Pre and post-job analysis for improved performance
In-flow performance modelling – initial set-up based on reservoir model, updated in field from reservoir characteristics as drilled
Laboratory Studies & Capabilities
©2013 Weatherford International Ltd. All rights reserved. Incorporates proprietary and patented technology. 14
10 Steps Sand Control Selection Process
©2013 Weatherford International Ltd. All rights reserved. Incorporates proprietary and patented technology. 15
Due-Diligence Engineering – Step 1
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Due-Diligence Engineering – Step 1
©2013 Weatherford International Ltd. All rights reserved. Incorporates proprietary and patented technology. 17
Due-Diligence Engineering – Step 2 to 10
©2013 Weatherford International Ltd. All rights reserved. Incorporates proprietary and patented technology. 18
Due-Diligence Engineering – Step 2 to 10
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Providing technology which can autonomously manage water production throughout well life.
©2013 Weatherford International Ltd. All rights reserved. Incorporates proprietary and patented technology.
Functions as Passive ICD during oil production
Delays water or gas breakthrough
Balances inflow profile in long horizontal wells
Additional restriction unwanted water or gas production
at breakthrough when compared to Passive ICD
Increases ultimate recovery
Extends well life
No intervention or connection to surface required
Each unit functions independently joint-to-joint
Technology licensed to Weatherford
A number of wells completed to date
Autonomous ICD (RCP Valve)
©2013 Weatherford International Ltd. All rights reserved. Incorporates proprietary and patented technology.
Principle of operation
Functions per Bernoulli principle
One moving part – disk
Free floating disk rests during oil production allowing maximum flow area
As Water-Oil or Gas-Oil Mobility Ratio increases high mobility fluid velocity increases
Pressure is lower at the flowing side of the disc due to the large velocity of high mobility fluid
Higher pressure behind the disc will lift it towards its seat
Upward movement of the disk restricts the flow of high mobility fluid (water or gas)
Reference papers
SPE-146737 & SPE-159634
Autonomous ICD (RCP Valve) - Concept
Standard ICD/AICD
Oil production
Standard ICD
Gas production
AICD
Gas or Water production
©2013 Weatherford International Ltd. All rights reserved. Incorporates proprietary and patented technology.
Passive ICD Autonomous ICD
Homogeneous reservoirs
Preset to delay coning at the heel
Improved mud clean-up at the toe
Heterogeneous reservoirs
Preset to delay coning at high permeable zones
Improved mud clean-up across low permeable zones
Heavy oil reservoirs
Provides limited restriction to flow of high mobility fluids
Homogeneous reservoirs
RCP Valve further restricts high mobility fluid flow to favour oil production
Heterogeneous reservoirs
RCP Valve will further restrict high mobility fluid flow to favour oil production.
RCP Valve provides best solution in wells with high reservoir uncertainty
Heavy oil reservoirs
Provides active restriction to flow of high mobility fluids
Additional
Benefits
Additional
Benefits
Additional
Benefits
Autonomous ICD (RCP Valve) – Well Applications
©2013 Weatherford International Ltd. All rights reserved. Incorporates proprietary and patented technology.
We have the solutions and capabilities to deliver.
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©2013 Weatherford International Ltd. All rights reserved. Incorporates proprietary and patented technology. 24 ©2013 Weatherford International Ltd. All rights reserved. Incorporates proprietary and patented technology.
Each reservoir brings Its own challenges.
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We strive to understand what is best for your reservoir.
©2013 Weatherford International Ltd. All rights reserved. Incorporates proprietary and patented technology.
Ensuring you find
a system with
Well Integrity
and Control built in.
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©2013 Weatherford International Ltd. All rights reserved. Incorporates proprietary and patented technology.
Questions?
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