Improving Economics of Subsea Fields with Intelligent Completions.

Improving Economics of Subsea Fields with Intelligent Completions

© 2009 Halliburton. All Rights Reserved. 2

Topics

Subsea Field Development SmartWell™/Intelligent Completions System integration Case Study Summary


Evolution to Subsea Fields

Major reservoir basins are maturing

Reservoirs are more complex

Giant fields discovered in deep water


Operations - Expanding


Operations - Increasing

2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013

-

1,000

2,000

3,000

4,000

5,000

6,000

7,000

Qu

an

tity

Year

Subsea Tree Sales/DemandSource: Quest Offshore

Base Case High Case


Origins and the Case for SmartWells™

Well construction outpaces existing tools and workflows

Subsea wellsare declining

Deepwater subseainterventions are costly

Drilling technologiescreate complex wells

Late 1980s

Drive to remotely control and monitor different reservoir zones withoutintervention

• Concept of “intelligent completion” is born• First intelligent completion system:

Surface Controlled Reservoir AnalysisSystem

1997

SmartWells


Implications of unexpected subsea intervention

Situation: Unexpected water breakthrough in a subsea well

Average intervention cost: $6,000,000 Intervention Activities

Schedule and move deepwater rig to well Install and test riser Run drifts and production logs Run isolation tool Suspend well and recover riser Move rig


SmartWell™ Solution for Subsea wells

HF1 Packer

Interval Control Valve

Permanent Down-hole Gauge Cluster

Control Line Umbilical

A SmartWell intelligent completion enables the operator to remotely monitor and control well inflow or injection down-hole, at the reservoir, with no physical intervention, to permit optimization of well, production and reservoir management processes.


Commingled SmartWell

Zone 5 Sequential

Zone 4 Sequential

Zone 3 Sequential

Zone 2 Sequential

Zone 1 Sequential

Pro

duc

tion

Rat

eC

umu

lativ

e P

rodu

ctio

n

Years

Zone 5

Zone 4

Zone 3

Zone 2

Zone 1

Zone 5 Zone 4 Zone 3 Zone 2 Zone 1Economic Rate Limit

Commingled SmartWell

Completion

Commingled SmartWellCompletion

Commingled SmartWell® System vs. Sequential Development

SmartWell completion reaches economic limit


Installation Record

Over 130 smartwells in Subsea by Halliburton WellDynamics

Installations in oil producers, gas producers, water injectors and gas injectors

Installations in most subsea regions with most operators


Improving Reliability


SmartWells in Subsea - Gulf of Mexico

• Challenge−Differential pressure, crossflow, or early water breakthrough

were the main risks identified with producing multiple-completion wells that might lead to costly well interventions

• Results−SmartWell systems installed in Shell/BP Na Nika field in 2003−Downhole valves and sensors optimize production offtake

and provide downhole data in real-time−Field experiences published in 2007

“ The project has been an economic and technical success. The application of intelligent well technology has enabled developing Na Kika with a minimum number of wells and continues to help provide world-class reservoir surveillance data and ensure high standards of reservoir management”

-Source: IPTC11784Na Kika Field Experiences in the Use of Intelligent Well Technology to Improve Reservoir Management

A. Chacon, SPE, J.B. McCutcheon, SPE, D.W. Schott, SPE, B. Arias, SPE, and J.M. Wedgwood, SPE, BP America


SmartWells in Subsea gas wells - Egypt

Challenges Zones with different permeability and productivity Monitor and reduce water production Security of supply Eliminate intervention to reduce OPEX

Results Reduction in CAPEX by reducing well count Maximize production rate by completing in multiple

zones Remotely monitor and control water Minimizing well intervention

-Source: SPE128572Smart Technology Application,, preparation, implementation case study

Taher Abd El Rahmim Ali et.al. Rashid Petroleum Company


SmartWells in Subsea oil wells- West Africa

Challenges

Various reservoir with multiple lobes Uncertainity in water and gas flood

movement

Solutions

Intelligent completions with downhole control valves

Manage zonal injection and production for optimal recovery


Results of SmartWells – West Africa

Control injection for voidage replacement and pressure maintenance

Continuous zonal flow allocation

Incremental recovery in most wells

Sustain Plateau Capex reduction – less wells Opex reduction - less

intervention-Source: OTC20191

Intelligent Well Completions in Agbami: A review of the value added and execution performanceAdekunle Mojeed Adeyemo et.al. Chevron Nigeria Limited


Subsea Considerations

Gauge Interface at tree Type of sensors Volume of data

Hydraulic Interface at tree High Pressure Supply Low Pressure Supply Isolated System (Needle valves downstream

of DCVs)

Successfully interfaced with subsea suppliers


Intelligent Well Applications

Relative Business Value

Increase ultimate recovery

Reduce surface facilities

Reduce well costs

Accelerate production

Reduce well intervention costs


Summary

Intelligent wells / SmartWells has improved the economics of subsea field development

Over 130 installations in different subsea regions

Interfaced with different subsea vendors

Several field cases of value addition


Intelligent Well Applications

Animation

Improving Economics of Subsea Fields with Intelligent Completions.

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