Managed Pressure Cementing system

Safe isolation through

innovation

®

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Reliable, high-performance isolation. MPC®.

By using MPC® you are effectively taking out an insurance policy on the integrity of the top-hole section of the well. How? Well, rather than taking the conventional cementing method route with its associated problems, MPC® offers the user a number of very real benefits including safety-enhancement and cost/time advantages.

These can help keep your project safe, on track and on budget - minimising the unforeseen and reducing risk, the

very advantages that AGR Enhanced Drilling Solutions made its name with on more than 500 RMR® (Riserless Mud Recovery system) and CTS™ (Cutting Transportation System) jobs to date.

PRECISE CONTROL IS THE KEY MPC® enables its operators to precisely control the pressure and flow of returning cement. Constant pressure is achieved at weak zones, preventing losses to the formation.

Gas and shallow water hazards are simply yet effectively kept at bay.

SAFETY, ABOVE ALL In the case of an influx or loss, rapid action can be taken by the MPC® operator, quickly and easily, to stop any situation from escalating. Any loss or gain can be identified and rectified with AGR’s proven MPC® component, the Subsea Pump Module.

What is MPC®?The Managed Pressure Cementing system (MPC®) from AGR enables you to safely isolate problematic zones - cost effectively - even in Narrow Pressure Window scenarios.

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Control is the key to success. Constant, precise pressure management, plus reliability when you need it most.

04 SAFER, FASTER, CHEAPERThe system enables the management of wellbore pressure during the circulation of cement slurry and its setting time.

This is done in such a way that unwanted fluid exchanges between the wellbore and the casing annulus are avoided.

Crucially, MPC® can use conventional cement rather than more costly foam or nitrified cements yet still achieve effective isolation.

THE CHALLENGE SOLVEDWith traditional cementing techniques, the challenge has always been to effectively isolate shallow gases and water in the top-hole section where unstable, unconsolidated formations exist.

Low fracture gradients combined with high-density slurries and circulation pressure mean that the chances of fracturing the formation are high, resulting in losses.

AGR’s MPC® system allows the operator to unload the pressure as the heavier fluid (spacer, cement slurry) flows up

the annulus above the critical zone in order to compensate for higher hydrostatic pressure.

MPC® keeps the wellbore pressure at the critical zone constant. The result? No losses and a cement job you can depend on.

With conventional cementing technique in the setting stage, a loss in hydrostatic pressure brings with it an increase in the likelihood of a fluid-bearing formation flowing into the annulus - which could ultimately lead to well-abandonment.

BRINGING CERTAINTY TO THE TASK MPC® offers the following advantages when it comes to ensuring that the cement job is both in place and can be depended on:

• The ability to verify cement at surface. • It enables the monitoring of pressure during set-up.

• Pressure can be applied to verify that the barrier is in place.

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Still taken from AGR’s MPC® video. Discover more at agr.com

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Precise pressure management, plus reliability when you need it most: MPC®.

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MPC® - the solution to two major challenges.Rapid system response that keeps both your team and your well safe.

A POwERFuL RISK-REDuCTION TOOLMPC® enables the successful isolation of high-pressure, unconsolidated water/gas bearing formations with high-performance cement.

A major operator used the system in the Caspian Sea off a semi-sub and was able to meet its top-hole objectives with MPC® - previous attempts in the area at controlling gas via conventional cementing technique had resulted in gas leakage after cementing.

This was not the case with MPC®. No gas flow either during or after cementing was experienced. The well did not become underbalanced at any time during cement setting.

CHALLENGES SOLVEDMPC® is the answer to two major problems encountered with conventional cementing techniques:

• Effective cement slurry placement in a Narrow Pressure Window scenario

• Gas flow after cementing.

Other advantages include:

• Enhanced safety thanks to the system’s rapid kick/ loss detection.

• Significant cost and time savings thanks to efficient mitigation of pressure-regime related issues

• Ability to set deeper surface casing

• Superior wellbore integrity

• Reduced logistics requirements

• Simple, effective design and operation

THE TOP-HOLE TEAM - MPC® AND RMR®RMR® (Riserless Mud Recovery) is the perfect complement to MPC®.

It is an innovative way to return mud and cuttings to the rig before the marine riser is run, without discharge to the seabed: there is no ‘Pump and Dump’.

RMR®, which has been used on more than 170-wells worldwide to date, enables top-holes to be drilled more safely, quickly and with less environmental impact.

Discover more at www.agr.com.

Contact AGR about MPC™ at the following offices:

NORWAYHead office: Smålonane 12-14, P.O.Box 1635342 StraumeTel: +47 56 31 60 00Fax: +47 56 31 60 01

AUSTRALIALevel 2,16 Milligan Street,Perth, WA 6000.Tel: +61 (0) 8 9360 4000Fax: +61 (0) 8 9360 4089

AZERBAIJANSAT Plaza, B. Safaroglu Street 133, 16th floor, Baku AZ1009AzerbaijanTel: +9945 0592 8288Fax: +4756316001

BRAZILAVN Presidente Wilson,231, Salao 503,Parte Centro Rio de Janeiro - RJ(CEP 20030 - 21).Tel: +1 281 616 0400Fax: +1 281 616 0444

CANADA16420 Park Ten Place,Suite 300,Houston, TX 77084.Tel: +1 281 616 0400Fax: +1 281 616 0444

UKUnion Plaza,1 Union Wynd,Aberdeen,AB10 1SL.Tel: +44 (0) 1224 629000Fax: +44 (0) 1224 629001

USA16420 Park Ten Place,Suite 300,Houston, TX 77084.Tel: +1 281 616 0400Fax: +1 281 616 0444

www.agr.com