4-3/4" AutoTrak V Rotary Steerable System Precise Vertical Drilling

Transcription

4-3/4" AutoTrak V Rotary Steerable System Precise Vertical Drilling
Technical Data S ummary
4-3/4" AutoTrak V Rotary Steerable System
Precise Vertical Drilling
AutoTrak V is a stand-alone rotary steerable
drilling system that automatically seeks and
maintains a strictly vertical, straight and
smooth wellbore.
Whether drilling a top-hole section, the end of
an S-curve or correcting an unintentionally
deviated wellbore, AutoTrak V offers an
economical, efficient solution with superior
drilling performance and continuous string
rotation.
The AutoTrak V vertical-seeking system is
based on the field proven, reliable AutoTrak
Rotary Steerable System, but tailored for the
challenge of cost effective drilling of vertical
wells or hole intervals. Three hydraulically
controlled steering ribs keep the wellbore
vertical while constantly rotating the drillstring.
AutoTrak V is automated, to run without any
additional MWD system and provides a
continuous near-bit inclination update.
The perfectly straight vertical borehole
delivered by the AutoTrak V system minimizes
the risk of wellbore collision in pad drilling
applications, and the superior hole quality
reduces operational risks during wireline
logging and when running casing.
It can be combined with high-power drilling
motors for ultimate performance and
optimized drilling dynamics.
Unlike other systems on the market the
steering mechanism is independent from bit
pressure drop, so that hydraulic parameters
like flow rate, mud weight and bit nozzle
selection can be optimized for maximum rate
of penetration. The steering ribs are
decoupled from string rotation to minimize
equipment wear and formation damage,
especially in softer formations, like in typical
top-hole sections.
Features
Benefits
Steering ribs automatically keep the wellbore
vertical while the drillstring rotates 100% of the
drilling time.
Delivers a vertical wellbore and reduces time
on well by eliminating correction runs and
sliding time with steerable motors.
Steering mechanism that provides continuous
steering while drilling ahead.
Improved wellbore quality minimizes issues
when running casing.
Near-bit inclination and diagnostic data in realtime.
Minimizes wellbore collision risks and ensures
that target is precisely intersected
Steering mechanism that is independent of
hydraulic parameters such as flow rate, mud
weight and mud properties.
Drilling performance is optimized by allowing
the adjustment of hydraulic conditions for the
application.
Capability to combine with Baker Hughes'
large and diverse fleet of high-power
downhole motors.
Improves rate of penetration by minimizing
drilling dysfunctions.
Economical and simple deployment with
minimal surface interaction during the drilling
process.
Reduces set up time and ensures efficiency
during drilling operations.
4-3/4" AutoTrak V Rotary Steerable System
©2011-2011 Baker Hughes Incorporated. All rights reserved.
ATKV-70-01-001 Rev. B
Technical Data S ummary
4-3/4" AutoTrak V Rotary Steerable System
Precise Vertical Drilling
General Tool Specifications
Nominal Tool Size (OD)
Hole Size Range
Tool Weight
Tool Connections
Up
Down
Tool Length
Operating Specifications and Limits
SI Units
US Units
121 mm
146 - 171 mm
650 kg
4-3/4"
5-3/4" - 6-3/4"
1,432 lbs
3-1/2" IF Box
3-1/2" Reg. Box
7,0 m
23.1 ft
SI Units
US Units
Nominal Tool Size (OD)
Flow Rates
Maximum WOB
Maximum RPM Variation
121 mm
4-3/4"
475 - 1 325 lpm
125 - 350 gpm
100 kN
22,500 lbf
±50% Maximum deviation from mean
RPM (e.g. 100 RPM: RPM Range=50150), limited by maximum tool rotation
specification, (from recorded memory or as
flagged by corresponding real-time
severity level)
Maximum Tool Rotation
250 RPM
"RPM specification may be reduced depending on circulating temperature, mud
properties and well bore geometry. Please contact Baker Hughes representative for
specific applications."
Maximum Drilling Torque (at the Bit)
14 kNm
10,300 ft-lbf
Maximum Torque to Failure (at the Bit)
18 kNm
13,300 ft-lbf
Max Overpull w/o Rotation
1000 kN
224,808 lbf
(Continued Operation)
Max Overpull w/o Rotation To Failure
2100 kN
472,000 lbf
"Maximum overpull values may be reduced depending on well bore geometry. Please
contact Baker Hughes representative for specific applications."
Operating Temperature
Maximum
150°C
302°F
Minimum
-20°C
-4°F
Maximum Hydrostatic Pressure
1380 bar
20,000 psi
Optional High-Pressure Service
2070 bar
30,000 psi
Bit Pressure Drop
No Limitation
Sand Content
1 % max. volume, acc. to API 13B
(<0,5% recommended)
Maximum LCM Concentration
40 ppb = 114 kg/m³ (Any pumping of LCM
must be carried out according to AutoTrak
G3 operations manual)
Maximum DLS for Tool Passage
With Rotation
10°/30 ft
10°/100 ft
Without Rotation
30°/30 ft
30°/100 ft
"Maximum DLS for tool passage should only be used as a guide. Actual limits may vary
depending on BHA configuration. Please contact Baker Hughes representative for
specific applications."
Maximum Axial & Lateral Vibration
Refer to Supplemental Technical
Specification document
TDS-20-60-0000-00
Near Bit Inclination
Sensor Type: 3-Axis Accelerometer
Package
Distance from Bottom of Tool
1,16 m
3.8 ft
Drilling & Evaluation
2001 Rankin Road
Houston, Texas 77073
Phone: +1 713-625-4200
www.bakerhughes.com
Although the information contained herein is believed to be accurate, no other representations are made concerning the information. Under no circumstances shall Baker Hughes be liable for any incorrect or incomplete
information. All technical specifications and commercial information concerning the product and/or services described herein may be changed at any time without further notice. Refer to Supplemental Technical Specifications
(TDS-20-60-0000-00) for further environmental specific specifications and information on the application, operation, and handling of Baker Hughes tools. Technical Data Summaries are controlled documents and can only be
released through the Documentation & Records Management System(s) Group.
ATKV-70-01-001