05/03/2023

INTELLIGENT WELL COMPLETIONS

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Presented by:Nikhil BarshettiwarMaharashtra Institute of TechnologyPune (Maharashtra)

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CONTENTS

1. Definition

2. Components

3. Application

4. Case studies

5. References

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DEFINITION

Definition-An intelligent well is a permanent system capable of collecting, transmitting, and analyzing wellbore production and reservoir and completion integrity data, and enabling remote action to better control reservoir, well, and production processes.

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COMPONENTS

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SENSORS- 1. Parameters-Pressure, Temperature & Fluid density.

2. Analyzing of data allows which type of fluid is moving inside wellbore.

3. It allow to take decision to operator, how to operate the well.

FLOW CONTROL-1.Control of fluids from reservoir to wellbore and wellbore to reservoir.

2.Heart of flow control is ICV, it permits operator to throttle or shut-off flow of fluids from zone.

INFRASTRUCTURE4. Equipment necessary to power and communicate with downhole sensor and flow control

equipment.

5. Consist of Control Lines, Surface Data Acquisition System, Hydraulic Power supplies, PLC, Control Software, User Interface.

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APPLICATIONS

1. WATER AND GAS SHUT OFF

2. OPTIMAL SEQUENTIAL PRODUCTION

3. COMMINGLED PRODUCTION

4. INTELLIGENT WATER FLOODING

5. INTELLIGENT GAS LIFT

6. MONITORING

7. DOWNHOLE PRODUCTION TEST

8. SAND CONTROL

9. CHEMICAL INJECTION SYSTEM

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APPLICATION

CUMMULUTIVE PRODUCTION Vs TIME

AUTOMATED GAS LIFT

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Advantages-1. Elimination of intervention

2. Reduce number of wells required to exploit the formation

3. Less number of the equipments required for fewer wells

4. Eliminate need of Production Well Testing

Disadvantages-

5. High Capital Expenditure (CAPEX)

6. Complex design and implementation

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CASE STUDYIntellizone Compact Modular System

1. Integrated Assembly

2. Downhole assembly include- Packer, Handling Sub, an FCV

3. Each assembly tested at the factory.

4. Using frequency shift keying (FSK) , data is transmitted to surface, system monitors downhole pressure, temperature, and valve position every second.

5. Data transmitted to surface via mono-conductor single cable.

6. Hydraulic Control unit controls all hydraulic line fluid outflow, inflow and pressures required to actuate downhole flow.

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CASE STUDY –I (Savings in Brazil)

•Petrobras decide to use Intellizone Compact System in Carapeba-27 injection well in campos basin offshore Rio-de-Janeiro.

•Objective- 1.Optimization of production of mature field by conventionally completed one zone wells with three-zone IC’s.

2.Use of Intellizone Compact System in an injector well to optimize sweep efficiency and to perform injectivity test to allocate injection rates in each zone.

•System description-1. Assembled and tested at the factory.2. Each three –zone modular completion included an isolation packer, a dual pressure and

temperature gauge for tubing and annulus reading.3. Two or Four position FCV and FCV sensor.

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CASE STUDY –II (Savings in India)

India’s offshore operator decide to complete three zone well within economic restraints of a marginal field. They sought to reduce CAPEX by using already purchased equipment and optimum return on their investment through control of each zone independently.

•Completion choices- Sliding sleeves and Surface Controlled downhole flow control system.

•Problem-1. Sliding sleeve requires interventions to shift them and to bring these wells online they would

have to perform coiled tubing-conveyed acid treatments across each zone individually.

2. Treating all zones at once would have result in most of acid entering in one permeable zone and leaving the other two untreated.

3. Its not possible to isolate each zone using SCSFS because three have required more hydraulic lines than existing penetrations in company own wellhead.

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Solution-1. This include deploying multidrop module in an Intellizone Compact system.

2. Surface Controlled downhole downhole FCV’s were deployed across three zones using single hydraulic lines.

3. Zonal Isolation is achieved using cased hole packer and two swellable packers.

4. Using multidrop module , its possible to open one zone and while other two were closed .

5. It ensures that acid treatments were reaching their targets.

Savings-1. The elimination of three out of four control lines required by traditional system and

need of coil tubing based interventions saved operator’s three week of rig time.

2. Operator optimized production at 165% of the originally expected rates and saved $1 million within first two months following system installation.

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1.Halliburton WellDynamics Catalogue

2. Mike Robinson, Energy Development Partners Ltd. ‘Chapter 3 –Intelligent Well Completions’, Vol. IV Emerging and Peripheral Technologies, 2007,SPE

3. Kevin Beveridge et al: ‘Intelligent completions at the ready’, Oilfield Review autumn 2011, pp.18-27

4. Saeed Mubarak et.al : ‘Lessons Learned from 100 Intelligent Wells Equipped with Multiple Downhole Valves’, ’The Journal of Saudi Aramco Technology’, Fall 2009, pp.2-7

5. http://www.spe.org/jpt/print/archives/2003/08/JPT2003_08_techtoday.pdf, accessed at 17/09/2013 at 10.45 am

6. http://www.halliburton.com/en-US/ps/well-dynamics/well-completions/intelligent-completions/default.page?node-id=hfqel9vs&nav=en-US_completions_public, accessed at 18/09/2013 at 12.05 am

7. http://www.ogj.com/articles/print/volume-101/issue-15/drilling-production/multilateral-intelligent-well-completion-benefits-explored.html , accessed at 18/09/2013 at 1 am

8. http://www.weatherford.com/Products/Completion/IntelligentWellSystems/, accessed at 20/09/2013 at 11.15 am

REFERENCES

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THANK YOU

05/03/2023

BACK UP SLIDES

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ICD Selection and DesignThe following objectives were considered for completion of the horizontal openhole section of the main bore and upper lateral of the smart multilateral wells:◗◗ Facilitate uniform inflow across the entire horizontal production section of both the main bore and upper lateral.

◗◗ Control water production from relatively high-permeability layers upon water breakthrough.

◗◗ Allow automatic adjustment to compensate for changes in well inflow profile over the production life of wells.

◗◗ Provide uniform sweep efficiency across sand face.

◗◗Minimize annular flow.

◗◗ Minimize pressure drop through ICD housing to improve flowing bottomhole pressure (FBHP) in main bore and upper lateral.

◗◗ Minimize bypassed-oil regions, and maximize oil recovery.

◗◗ Maximize production life of wells.

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19DOWNHOLE PRESSURE SYSTEMDATA INFRASTRUCTURE