Electric Submersible Pumping Systems
Electric submersible pumping systems are an integral part of Weatherford's artificial-lift portfolio. Today we offer a complete solution—not simply parts and components—to enhance production over the life of a well or field and improve our clients' system run-lives and overall profitability.
The Lift Experts
SM
Electric Submersible Pumping Systems We take full responsibility for the entire job—well design concept through commissioning. Our experienced personnel understand that there's more to providing a finely tuned ESP completion than just excellent hardware. Weatherford's ESP team uses its experience in design, engineering, installation and optimization to provide a fulltime ESP support structure and ensure our clients maximum returns on their investments. The durability and service life of a Weatherford ESP system relies heavily on the quality of each system component. From robust, dependable downhole motors to an extensive range of intakes,
gas separators and multistage centrifugal pumps and surface components, our ESP systems can be customized and assembled for a variety of applications for long-term efficiency and extended service life.
Shanghai, China; Alexandria, Egypt; and Nisku, Canada. All of these facilities are ISO 9001:2000 certified. So, whether the situation calls for a specific product or a complete well analysis and system design, Weatherford has the right solution for all your needs.
In addition, our sensing and monitoring systems allow for well production control with complete monitoring capabilities in conjunction with any existing communication system. Our global infrastructure speaks for itself, with highly professional specialists in all the major oilproducing regions of the world. We also operate technologically advanced ESP manufacturing, assembly and service facilities in
Weatherford’s 400, 513 and 538 Series Pumps Operating Range at 3,500 rpm 5,000
16,000
4,500 14,000
400 Series
4,000 12,000 3,500
Head (ft)
Head (m)
2,500
513 Series
10,000
3,000
8,000
2,000 6,000
538 Series
5 1/2-in. Casing
1,500 4,000 1,000
6 5/8-in. Casing
2,000
7-in. Casing
500
2,000
4,000
6,000
8,000
10,000
12,000
14,000
16,000
Flow (BPD) 500
1,000
1,500
Flow (m3/d)
2
© 2006-2007 Weatherford. All rights reserved.
2,000
2,500
18,000
Pump Application Head
Shaft
O-ring Upper bearing Compression nut
Housing
Diffuser
Impeller
Lower bearing O-ring
Base
The principal components of Weatherford's multistage centrifugal pumps are nickelalloyed iron stages, which consist of rotating impellers and stationary diffusers. Depending on desired rates and performance, this corrosionresistant stage construction can be either floater or compression. Compression-style pumps can cover a wider range of flow rates. They can absorb greater downthrust by transferring the forces downward through the pump to the motor seal thrust bearing, as opposed to floater construction, where the thrust is absorbed by the pump stages themselves. The stage geometry for all of Weatherford's pumps is either radial flow or mixed flow. Typically, the radial-flow type is more efficient at flow rates lower than 2,500 BPD. Mixed-flow stages are more efficient at higher flow rates and also offer improved gas handling characteristics. Selecting the correct number of stages provides the required lift or head for the application, and the size of each stage determines the volume of fluid through the pump. Weatherford specifies a recommended operating range (ROR) for all pumps. It is important to operate the pump within this range to ensure optimal efficiency and to maximize run-life.
The stages are mounted onto a nickel-copper super-alloy shaft, which has high inherent yield strength. As with all our ESP components, we will only specify equipment specifically designed to handle the well conditions. For example, if the pump horsepower requirements are higher than normal, we will specify a higher-strength shaft material. The main housing material is a low-carbon steel. The head and base are made from mediumcarbon steel and also house abrasion-resistant tungsten carbide bearings to prevent radial wear and vibration at the two most susceptible points in the pump. In corrosive applications stainless steel housings can be provided; or, in some applications, “flamespraying” the carbon steel housings with a MONEL® coating is preferred. For abrasive (sandy) conditions, abrasion-resistant ceramic (tungsten carbide) can be used throughout the pump to maintain radial stability. Higher-strength shafts are available for cases in which the number of stages and load on the shaft could cause the shaft to deform or even break under normal operating conditions. All Weatherford pumps are built to ISO 9001:2000 standard and are tested to API-RP-11S2.
MONEL is a registered trademark of the Special Metals Corporation group of companies.
© 2006-2007 Weatherford. All rights reserved.
3
Electric Submersible Pumping Systems Series OD (in.)
4.00
Series OD (in.)
5.13
400 Series (3,500 RPM) Standard Shaft Pump Type Rating (HP) 400-180 94 400-350 400-450 125 400-700 94 400-950 400-1250 125 400-1750-a 400-2200 400-3000-a 256 400-4500 400-5800
Recommended Flow Range (BPD) 75 to 300 203 to 420 300 to 555 500 to 900 650 to 1,200 800 to 1,600 1,200 to 2,050 1,550 to 2,650 2,100 to 3,900 3,000 to 5,400 4,250 to 7,500
513 Series (3,500 RPM) Standard Shaft Pump Type Rating (HP) 513-1600 256 513-2500 513-3900 375 513-6000-a 513-7500-a 637 513-10000
Recommended Flow Range (BPD) 1,200 to 2,000 1,860 to 3,000 3,180 to 5,000 4,080 to 7,200 5,080 to 9,100 8,000 to 12,000
Weatherford is the leading singlesource provider of artificial lift worldwide and the only company that offers comprehensive systems for all forms of lift. To learn more about our line of ESP systems, contact us at
[email protected], or visit www.weatherford.com.
538 Series (3,500 RPM) Series OD (in.)
Pump Type
5.38
538-1900 538-2600 538-3600 538-4700 538-7000 538-9000 538-12500
Standard Shaft Rating (HP) 256
375 637
Recommended Flow Range (BPD) 1,050 to 2,300 1,600 to 3,200 2,400 to 4,600 3,500 to 6,000 4,000 to 10,000 5,500 to 11,000 8,000 to 16,000
Note: 675 and 862 Series pumps are also available on request.
515 Post Oak Blvd., Suite 600 Houston, Texas 77027 USA Tel: 713-693-4000 www.weatherford.com
[email protected]
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.
© 2006-2007 Weatherford. All rights reserved.
Brochure 765.04
