‘Deep experience. Strong reputation'‘Deep experience. Strong reputation'

CORPORATE BROCHURE

RC 689034

THE PROLOGUE

OUR SERVICES

GreatWall Technology Limited is a nimble oil field services company with experience dealing with Oil and Gas companies in Nigeria and Gulf of Guinea with a deep commitment to serving clients with smarter, customized answers and world-class resources.

Our people are dedicated to qualifying what you want to accomplish, and then developing solutions that fit your project, your budget and your goals.

We believe in being a partner to our client, thinking outside the box and accomplishing what others cannot.

With a combined senior management experience of over a hundred industry years, we strive to bring global best practices to the Nigerian content domain and across the gulf of Guinea.

We strive to provide solutions that reduce environmental impact, improve well productivity and lower risk to the Oil and Gas operators.

GreatWall specializes on the following services:

Ÿ Well Completion Ÿ Wireline/Slickline

Ÿ Well testing,

Ÿ Drill stems testing

Ÿ Perforation services - TCP/WCP

Ÿ Marine services

Ÿ Logistics Services (Marine – Land)

GREATWALL TECHNOLOGY LIMITED

With a consortium of Service Providers in Well Completion, Project Management and Well Intervention services, we provide the client a one-stop shop for:

Ÿ Completions ServicesŸ Slickline and Electric Line ServicesŸ Coiled Tubing ServicesŸ Well TestingŸ Pumping Services

We know wireline and what it takes to earn trust in the industry. Our reputation rides on helping our customers achieve the maximum efficiencies in production through exceptional services and wellsite execution.

Our customers have come to count on our experience, technology and reliability. When you want better than good enough, you can depend on GreatWall.

GreatWall offers a complete array of Well Completion Services including intelligent Completion Designs, Equipment and Installation. We provide complete well completions solutions for every conceivable reservoir drainage pattern from conception design to installation.

GreatWall provides complete Well designs with the aid of the latest computer software and procures all well Completion equipment including; Flow Couplings, Stainless Steel or Incoloy Control Lines, Sub-surface Safety Valve (Wireline or tubing retrievable), Gas-lift Mandrels with Live or Dummy Valves, Sliding Sleeves, Snap Latch Seal Assemblies, Single Production Packers, Blast Joints, G-locators with Seal Assemblies, Liner Top Packers and Liner Tieback Systems with Liner Hanger Assemblies. We also provide Bridge Plugs and Cement Retainers. Our completion engineers bring over 100 combined years of tested experience to any well.

Well CompletionsProject ManagementCapability

Wireline/Slikline Services(FEETS OF WIRELINE AND STILL MEASURING)

Nothing is predictable in the oilfield. Maximizing production and minimizing costs is a balancing act. In challenging, unconventional environments, it's important that you have a partner who understands how to get the job done efficiently and effectively.

At GreatWall Technology, we don't offer off-the-shelf solutions. We customize completion solutions for every project—and provide the tools and the knowledge to deliver the lowest costs and highest efficiencies. With GreatWall, you have access to a full array of completion solutions, all designed, tested and proven.

Back by GreatWall's partnership with Halliburton, they are tested known Services Company in the Industry worldwide.

Our proof of performance...GreatWall and partners have a proven track record with over 2,000 successful stimulation zones deployed since 2007. In addition, we have a number of proprietary products that offer unmatched performance. And with an industry-leading plug-n-perf team, we are ready to deploy when you need us the most.

GreatWall brings you a comprehensive well intervention portfolio.The oilfield is unpredictable, and the demands to achieve objectives while operating responsibly are high. As a recognized leader in well intervention, GreatWall provides consistent service, innovative solutions and proven experience to help you succeed.

At GreatWall, wireline service is our business—not just a small segment of what we do. Our exemplary track record in the field enables us to provide exceptional service to each customer. With every job, we strive to operate more efficiently and deliver better results each time.

In addition to advanced equipment, we provide proficient, skilled people onsite to execute the job. Our high volume of diverse wireline work ensures that our crews are experienced and equipped to respond appropriately to a range of unexpected well conditions.

Our employees learn quickly in our accelerated training program, which integrates classroom knowledge with hands-on experience and GreatWall's involved management team provides oversight and direction for every job in the field and works to enhance service quality with every run.

We focus on helping every GreatWall customer get the job done more efficiently and effectively. We rely on an array of innovative products, techniques and processes to provide the best quality at the right price. Our arsenal of services includes:

Tubing Conveyed Perforating Services (TCP):GreatWall a TCP company, so we know the technology and understand how to meet customer needs. Can efficiently set plug and shoot guns on same run

We run it right...

We've got the tools...

THE WAYCOMPLETIONS SHOULD BEGREATWALL TAKES A DIFFERENT APPROACH TO COMPLETIONS –

Our conventional testing services include:

TCP SERVICESOur TCP systems are designed to provide intelligent perforation using mechanical, hydraulic and electro-mechanical firing system. Engineered firing systems and accessories along with a wide range of high performing perforating guns ensure optimum results specific to all of your needs.

All options can be deployed in long or short intervals and also in both balanced and under-balanced conditions.

DST SERVICES

Drill Stem Test Tools and Downhole Memory GaugesMulti-Function Test Tools in conjunction with Downhole Memory Gauges and TCP, keeping well control and providing temperature and formation pressure throughout the test.

WORK OVER SERVICESWe are committed to providing a broad range of remedial and stimulation tools and equipment to our customers for enhancement and/or recovery of well production.

* Cement Squeeze Tools* Acidizing Tools* Bridge Plugs (Retrievable, Composite and Cast Iron)

THINK OUTSIDE THE PRODUCT CATALOGNOW YOU CAN COUNT ON GREATWALL TECHNOLOGY FOR COMPLETIONS, WIRELINE AND MARINE SERVICES.

RC 689034

CONTACT INFORMATION:PLOT 35 TRANS AMADI INDUSTRIAL LAYOUT,

PORT HARCOURT, NIGERIA.TEL: +234-809 866 2562,0703 066 2562

EMAIL: CONTACTUS@GREATWALLLTD.COM

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