MWCC Overview, Well Containment Operations & SIMOPS

Spill Control Association of America – Annual Meeting March 20, 2014

Carmine Dulisse

About Our Company Leading deepwater well containment system and

technology provider for U.S. Gulf of Mexico

Expertise in subsea containment and incident response training

Independent company, not for the purpose of making a profit

10 members, representing 70% of the deepwater wells drilled in the U.S. Gulf of Mexico

Each member has an equal share and an equal vote

Investment of over $1 billion into system

System available to all operators in the U.S. Gulf of Mexico as a member or as a non-member (per well basis)

147 permits citing MWCC’s containment system approved by BSEE

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Source Control Response Workflow

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Site Survey & Initial

Assessment

Debris Removal

Subsea Dispersant Application

Capping

Capture & Collection

Decontamination & Demobilization

SIMOPS

Relief Well

Time

Standard Source Control Response Workflow

There are multiple response functions that are critical to a successful source control effort.

Subsea Dispersant Application

Capping

Capture & Collection

Site Survey & Debris Removal

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Site Survey & Initial Assessment

A surface (aerial/vessel) and subsea (ROV) site survey will prompt the subsequent steps in the workflow by indicating:

‒ Existence of debris

‒ Potential discharge source(s)

‒ Status of surface and subsea infrastructure

‒ General magnitude of the release

Debris Removal

If debris is known or detected, debris removal becomes the critical path activity to ensure a safe working environment and access to the site for intervention

The scope of debris removal operations is unpredictable and will impact the response timeline

Capping operations will require a clean connection to the wellhead, BOP, or LMRP

Well Containment Operations

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Subsea Dispersant Application

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Subsea Dispersant Injection System (SDIS)

30-in. and 40-in. Hook Wands

Fan and 50-in. Hook Wand Subsea dispersant is a key initial response tool for mitigating hydrocarbons in the water and may be necessary to enable a safe working environment by minimizing volatile organic compounds (VOCs) on the surface

MWCC provides an initial supply of approximately 200k gallons of COREXIT 9500.

Well Containment Operations

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Capping

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Capping operations involve the installation of a capping stack onto the wellhead and closure of the ram and choke valves to shut in the well and stop the discharge of hydrocarbons.

Key Resources:‒ Deployment vessel(s) – for the capping stack and support

equipment

‒ Crane for load-out onto deployment vessel

‒ Additional connector if interface necessary

Key plans & procedures:‒ Pre-mobilization and testing plans

‒ Equipment load-out and sea fastening plans

‒ Well straightening procedure (if necessary)

‒ Installation procedures (adapted to the current situation)

‒ Well shut-in procedure and contingency plans

• Wellbore Containment Screening Tool

Well Containment Operations

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Hydrate Inhibition

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Methanol storage tanks

Chemical injection pumps & manifolds

Umbilical & reel

Hydraulic Power Unit (HPU) Launch & recovery

system

Hot stab patch panel

Flying lead deployment frame

17D hot stab assemblies

Not Used

To BOP Gooseneck

To CDP Manifold

Air tugger

Umbilical Distribution Box

Short (dynamic) chemical flying leads

Long (static) chemical flying leads

Flying lead distribution box

Methane hydrates form from natural gas exposure to very cold deep water temperatures

Hydrate Inhibition Systems inject methanol or glycol solutions into the containment system equipment to prevent potential hydrate formation and blockage

Well Containment Operations

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Well Containment Operations

Cap & Flow

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Cap & Flow operations involve the installation of additional subsea equipment such as subsea umbilicals, flowlines, risers, and manifolds to enable a well to be flowed to a surface capture vessel

The surface capture vessel will process the oil/gas/water stream for safe storage and transport

SIMOPS

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What is SIMOPS? SIMOPS is the management of Simultaneous Operations to ensure safe execution

of response activities to avoid a potential clash which could bring about an undesired event

A proper SIMOPS management program involves an exchange of information to enable efficient use of resources to accomplish multifaceted missions safely

During a response, USCG will require a comprehensive SIMOPS plan that includes deployment and operation of well containment equipment

MWCC has created a SIMOPS Guideline and associated drawings for deployment and operation of its equipment in order to provide its members with a framework for SIMOPS management

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Role of SIMOPS in the ResponseThe SIMOPS control group is responsible for coordinating the safe execution of operational plans within the designated control area(s) in the field.

Effective SIMOPS coordination requires that:

SIMOPS requirements are integrated into Command Post tactical planning

SIMOPS procedures are established and maintained for all resources in the field

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Planning Execution

Command Post Field

Coordination

SIMOPS Control

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Continuously Ready to Respond