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PROPUESTA TÉCNICA
PERFORACIÓN POZO PRODUCTOR BRS-4

RECORD DE EXPERIENCIA SUBTERRA ENGINEERING CORP

Cavern Drilling Experience

The SubTerra Group of Companies have become the leaders in Cavern Design and
Execution throughout the past ten plus years and as such, has developed a committed
and viable support structure to address all the various elements required during each
phase of a typical Cavern Project.

We can fulfill any or all the following:

• FEED studies
• Design Requirements (Single or Dual entry options)
• Vendor and Material Management
• Regulatory Applications and Filings
• Procurement – Equipment, Services and Materials
• Operations and Implementation
• Cavern Wash Programs, dissolution modelling
• Mining Integrity Testing (MITs)
• Cavern Conversions to Product
• Workovers
• Construction

Over the past few years we have been able to grow our core staffing into a world
class organization with clearly defined Roles and Responsibilities. Field Personnel
have extensive Cavern experience and have worked in areas from fully operational
Plant Facilities to undeveloped exploratory lands. Construction Supervisors have
access to local networks which help them operate safely and efficiently while
constantly communication client needs and regulatory requirements.

Our Wellsite Supervisors are among the most dependable and experienced in this
field. They have an enormous understanding of downhole issues, real-time mitigation
strategies, and understanding of the correct drilling parameters that have allowed
us to leap ahead of our competitors as far as performance, drill times, and costs.

Our Completions Supervisors have been involved throughout the evolution from
single entry to dual entry and beyond. A solid understanding of what is involved in
a “Live Cavern” second entry, to running/retrieving wash strings, and conversions
to product, they have helped us maintain the working relationships long after the
Caverns are drilled.

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