Schlumberger
launches rotary steerable with integrated measurements to optimise
drilling performance and wellbore placement
Posted: 4 March 2004
PowerDrive X5 System engineered from ground up to combine
full rotation and exceptional reliability
Schlumberger Oilfield Services announced the debut of its first
rugged rotary steerable system (RSS) with integrated measurements
to optimize drilling performance and wellbore placement.
With a temperature rating of 302oF [150oC] and providing azimuthal
gamma ray images measurements close to the bit for real-time detection
of slip and fault boundaries, the PowerDrive X5 system operates
reliably in hot holes, increases time on bottom through downlink
and efficient directional control and features a tangent and inclination
hold function.
“The system has been designed for hot, tough drilling environments
and for reservoirs in which geosteering is aided by near-bit gamma
ray or where tighter total vertical depth control is required,”
said Schlumberger Paul Wand, Business Development Manager, Drilling
Technologies. “Typically these targets are found in offshore
and high-tier markets.”
Developed to increase run length, optimize wellbore placement and
reduce drilling time, the PowerDrive X5 system provides significant
reliability and efficiency gains. The automatic inclination hold
and efficient downlink functions minimize needed interaction with
the directional driller to maintain directional control while drilling
ahead. Increased productive time on bottom is the result.
This fully rotational system incorporates real-time 360o azimuthal
gamma ray measurement for geosteering applications and enables drillers
and geologists to identify bed boundaries quickly. An MWD-type triaxial
sensor package close to the bit provides accurate azimuth and inclination
information and allows fast, responsive directional control in either
automatic or manual operation mode, and enables tight control of
TVD.
Design efficiencies gained in the area of the control and bias
units, facilitates longer runs, optimum wellbore placement, and
a reduction in drilling time. The system, with chassis-mounted electronics,
utilizes the latest Schlumberger electronics design standards.
The Schlumberger suite of full-rotation rotary steerable services--the
PowerDrive* family--delivers leading-edge technology for all directional
drilling environments. They offer exceptional rates of penetration
(ROP) and efficient hole cleaning in the most demanding applications--kickoff
from vertical, open hole sidetracks, tangent sections, slimhole
extended-reach drilling, long lateral sections, and drilling under
harsh conditions at elevated temperatures.
For more information see www.oilfield.slb.com/powerdrivex5
About Schlumberger
Schlumberger is the world's leading oilfield services company supplying
technology, project management and information solutions that optimize
performance for customers working in the oil and gas industry. The
company employs more than 50,000 people of over 140 nationalities
working in 100 countries, and comprises two primary business segments.
Schlumberger Oilfield Services supplies a wide range of products
and services from formation evaluation through directional drilling,
well cementing and stimulation, well completions and productivity
to consulting, software, information management and IT infrastructure
services that support core industry operational processes. WesternGeco,
jointly owned with BakerHughes, is the world's largest seismic company
and provides advanced acquisition and data processing services.
In 2003, Schlumberger operating revenue was $11.5 billion.
For more information see http://www.slb.com
Posted by Richard Price,
Editor Pipeline Magazine
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