SAGD Wellhead-A4
SAGD Wellhead-A4
SAGD Wellhead-A4
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<strong>SAGD</strong> <strong>Wellhead</strong><br />
Building flexibility and efficiency.<br />
Steam rises and<br />
heats bitumen<br />
Heated bitumen<br />
flows to well
<strong>SAGD</strong> <strong>Wellhead</strong><br />
Achieve the flexibility and efficiency you need at the wellhead<br />
for the toughest heavy-oil challenges.<br />
1000<br />
2000 3000<br />
0 5000<br />
4000<br />
Long string<br />
annulus gate valve<br />
2 © 2009 Weatherford. All rights reserved.<br />
1000<br />
2000 3000<br />
0 5000<br />
Short string<br />
annulus gate valve<br />
4000<br />
Tubing hanger mandrel<br />
1000<br />
2000 3000<br />
0 5000<br />
4000<br />
Lock screw<br />
Alignment pin<br />
Lock screw<br />
Surface casing<br />
annulus gate valve<br />
Lower tubing hanger<br />
400<br />
800 1200<br />
0 2000<br />
1600<br />
Companion fl ange<br />
Master valve<br />
Coiled-tubing<br />
extension fl ange<br />
Coiled-tubing<br />
hanger<br />
Master Valve<br />
Carrier<br />
Studded cross<br />
Tubing bonnet<br />
Upper tubing hanger<br />
Lock screw<br />
Unihead assembly<br />
Long string<br />
annulus gate valve<br />
<strong>SAGD</strong> wellhead takes the heat<br />
As a world leader in heavy-oil technology,<br />
Weatherford offers a wellhead engineered to<br />
meet the tough challenges of steam-assisted<br />
gravity drainage (<strong>SAGD</strong>) applications. These<br />
steam-injection and thermal-producing wellhead<br />
assemblies operate in temperatures from<br />
−60°F to 650°F (−45°C to 343°C). What’s more,<br />
the low-profile design increases operating<br />
flexibility, efficiency and safety. The <strong>SAGD</strong><br />
wellhead is everything you would expect from<br />
the people who deliver innovative products<br />
and services for producing heavy oil and<br />
oil sands reserves.<br />
High recovery rates of up to 60 percent make the<br />
economics of the <strong>SAGD</strong> process highly attractive.<br />
And Weatherford’s <strong>SAGD</strong> wellhead adds further<br />
value to the process with its unique low-profile,<br />
unitized design that increases efficiency and<br />
operational flexibility.<br />
This new design enables concentric landing of<br />
multiple strings into one body, reducing overall<br />
wellhead height while enabling access to all<br />
annuli. The result is greater operational<br />
flexibility, efficiency and safety.<br />
And to further ensure peak performance,<br />
Weatherford can customize the wellhead<br />
assembly to complement your well design.<br />
Short string<br />
annulus gate valve<br />
Surface casing<br />
annulus gate valve
High recovery rates plus<br />
high efficiency<br />
• Temperature range: −60°F to 650°F<br />
(−45°C to 343°C) per API 6A<br />
• Special graphoil packing material in the<br />
mandrel tubing hanger enables seals to<br />
withstand temperatures as low as −400°F<br />
(−240°C) and as high as 1,200°F (648°C)<br />
• Mandrel tubing-hanger enables easy<br />
manipulation of additional control lines<br />
• Unitized design enables concentric landing<br />
of multiple strings into one body<br />
• Reduced overall wellhead height provides better<br />
access to all annuli<br />
• API-monogrammed wellhead ensures reliability<br />
• Applicable for both <strong>SAGD</strong> and sour service (H 2 S)<br />
• <strong>Wellhead</strong> assembly can be customized to suit your<br />
well design<br />
• Designed, built and backed by Weatherford<br />
• Available in two different configurations—producer or injector—which<br />
are customizable to your specific application<br />
<strong>SAGD</strong> <strong>Wellhead</strong><br />
The Alberta Energy and Utilities Board credits the <strong>SAGD</strong> process with helping to increase Canada’s proven oil reserves<br />
to 179 billion bbl—second only to Saudi Arabia. The process features two horizontal wells drilled with about 16 ft (4.9 m)<br />
of vertical separation. Steam is injected into the upper well to heat the crude oil or bitumen, which lowers its viscosity,<br />
enabling it to flow down into the lower wellbore where it is pumped to the surface. Canada, Venezuela and Saudi Arabia<br />
have the world’s largest deposits of bitumen.<br />
© 2009 Weatherford. All rights reserved.<br />
3
<strong>SAGD</strong> <strong>Wellhead</strong><br />
515 Post Oak Blvd., Suite 600<br />
Houston, Texas 77027 USA<br />
Tel: 713-693-4000<br />
weatherford.com<br />
Open up the full potential<br />
of heavy-oil reserves.<br />
Weatherford is a single source for products and services to make<br />
heavy oil economical to produce. We have everything it takes<br />
to make the most out of drilling, completion and production in<br />
heavy oil and oil sands. Along with <strong>SAGD</strong> technology and services,<br />
we can help you meet the challenges of cold production,<br />
cyclic-steam stimulation (CSS) and cold heavy-oil production<br />
with sand (CHOPS).<br />
To find out more about the <strong>SAGD</strong> wellhead and how Weatherford’s<br />
total heavy-oil capabilities can help you maximize recovery, contact<br />
your Weatherford representative at 403.693.7500 or visit<br />
weatherford.com/wellheads.<br />
Weatherford products and services are subject to the Company’s standard terms and conditions, available on request<br />
or at weatherford.com. For more information contact an authorized Weatherford representative. Unless noted otherwise,<br />
trademarks and service marks herein are the property of Weatherford. Specifications are subject to change without notice.<br />
Weatherford sells its products and services in accordance with the terms and conditions set forth in the applicable contract<br />
between Weatherford and the client.<br />
© 2009 Weatherford. All rights reserved. 6182.00
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