Gas Lift Systems

Weatherford Advantages

Weatherford's gas lift systems offer exceptional economic value and flexibility in a variety of onshore and offshore gas lift applications. Our McMurry-Macco™ gas lift systems include a complete portfolio of value-added products, services and solutions for production enhancement and ultimate reservoir recovery. Weatherford is leading the way by expanding valve technology and developing hybrid lift systems based on our gas lift expertise.

Weatherford's complete family of McMurry-Macco gas lift products ensures compatible, flexible solutions for every gas lift requirement. Whether for a low-producing, onshore, intermittent producing well or a deepwater, highly deviated, high-producing continuous lift well, Weatherford has the equipment and expertise to ensure maximized reservoir productivity and increased operational efficiency.

We are the only company that can provide all major forms of artificial lift. Our technical support capabilities and field support are second to none. Using state-of-the-art analysis software for installation design and sizing, individual well evaluation, and troubleshooting, our technical experts provide custom solutions to your gas lift challenges.

In addition to gas lift, Weatherford offers other compatible lift enhancement solutions, including water flooding, steam flooding, downhole gauge carriers, concentric packoffs, downhole corrosion monitoring and chemical injection.

Complete system integration

Full range of downhole capabilities, including waterflooding, steam flooding and chemical injection

Globally recognized leading developer of new valve technology and extensive performance testing

Market leader in development of hybrid lift systems employing gas lift technologies

Field-proven solutions, including deepwater and high-volume applications

Products and services backed by a solid global supply chain

Ability to offer all forms of artificial lift

The most comprehensive suite of gas lift solution offerings, including a wide range of sizes

A complete line of computerized engineering optimization (CEO ) electronic controllers

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The Lift Experts™

Weatherford International Ltd.515 Post Oak Blvd., Suite 600Houston, Texas 77027Phone: 713-693-4800www.weatherford.com © 2004–2006 Weatherford. All rights reserved. 775.01

Application Considerations

System Components

Gas Lift Valves

Weatherford offers a complete line of McMurry-Macco wireline-retrievable and tubing-retrievable gas lift valves, including injection pressure-operated, pilot-operated and production pressure-operated valves. Special application valves are also offered in tubing and wireline-retrievable configurations in 5/8-, 1- and 1 1/2-in. outside diameter (OD) models.

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Gas Lift Mandrels

Weatherford offers an extensive range of wireline-retrievable side-pocket mandrels and tubing-retrievable mandrels. Each product family features 1- and 1 1/2-in. inside diameter (ID) pocket profiles and includes both oval and round body designs. Several configurations and models are available, ranging from forged and machined pocket designs to high-pressure, solid-body and special-clearance designs. Each model can be configured with a variety of porting options including annular, tubing, side-string, bypass and chemical-treating injection.

Kickover Tools (KOT)

Weatherford’s KOT series kickover tools are an integral part of this fully compatible gas lift product line. These tools encompass a “re-cocking” feature that allows the operator unlimited attempts at removing or installing the valve without having to come out of the well.

Other Gas Lift Equipment

Latches:

Communication and Isolation Devices:

Surface Controls:

Slimhole Mandrels:

Pack-off Equipment:

Chemical Injection, Steamflood and Waterflood Systems:

Automation:

a complete line for side pockets with 180° K-type and 360° A-type latch-pocket profiles, specifically designed to lock gas lift valves and side-pocket accessories into the appropriate side-pocket mandrel.

an integrated line of communication and isolation devices, including wireline-retrievable dummy valves, equalizing dummy valves, and shear orifice valves.

including an in-line variable orifice choke, which is a calibrated adjustable choke for regulating injection gas. Pneumatically operated motor valves and electronic controllers are also offered for use in wells needing intermittent-type lift control.

used with pack-off assemblies or coiled tubing strings for maximum flexibility.

including isolation tools for tubing strings.

comprehensive packages of production enhancement solutions that have a proven history of exceptional performance in demanding environments throughout the world.

a complete offering of production enhancement solutions featuring real-time predictive information at the wellsite or from the desktop.

Typical Range Maximum

Operating depth 5,000 to 10,000 ft TVD 15,000 ft TVD

Operating volume 100 to 10,000 BPD 30,000 BPD

Operating temperature 100 to 250°F 400°F

Wellbore deviation 0 to 50° 70° (short to medium radius)

Corrosion handling

Gas handling

Solids handling

Fluid gravity

Servicing

Prime mover type

Offshore application

System eff iciency

Wireline or w orkover rig

Compressor

Excellent

10 to 30%

Good to excellent w ith upgraded materials

Excellent

Good to excellent w ith upgraded materials

>15° API

Weatherford products and services are subject to the Company’s standard terms and conditions, available on request or at www.weatherford.com. For more information contact an authorized Weatherford representative. Unless noted otherwise, trademarks and service marks herein are the property of Weatherford. Specifications are subject to change without notice. Weatherford sells its products and services in accordance with the terms and conditions set forth in the applicable contract between Weatherford and the client.