Based on a 7,000-foot vertical wellbore, the AccuDrift® system
saved 15 minutes per survey over a traditional wireline survey,
reducing nonproductive time at the survey station by 17.5 hours,
for a cost savings of up to $32,000 per vertical well section.
ACCUDRIFT® MWD SYSTEMNabors’ AccuDrift® MWD system is an
unmanned survey system that saves time and resources by replacing
the need for traditional wireline inclination surveys. Besides
eliminating the need for additional crew members at the rig site,
the system provides accurate, high-quality data that prevents
unwanted drilling events. If the system doesn’t indicate any
deviation, customers can be more aggressive in their drilling
parameters for ROP gains and reduced drilling times.The AccuDrift®
system features:• No wellsite assembly for higher
reliability and reduced HSE risks• Reduced dogleg severity for
a
smoother well bore• Automatic surveys on every
connection for reduced NPT • High resolution data that can
be
downloaded post well• 24/7 remote monitoring capability
to ensure quality control
• Long battery life (up to 1,000 hours) to enable drilling with
the same tool on multiple wells or a pad
• Shock & Vibration- Axial and Lateral Shock and
Vibration–Peak, RMS, Average• Temperature
VERSATILE APPLICATIONThe AccuDrift® system is ideal for all
vertical wells and vertical well sections that require
inclination-only surveys, including wells without planned
deviations and those with planned deviations during later sections.
The tool allows drillers to eliminate blind drilling which can lead
to excessive displacement from the surface location. The AccuDrift®
system helps avoid unforeseen trends in inclination that can lead
to potential collision risks, well revisions, and lost penetration
rate.
AccuDrift® Measurement While Drilling (MWD) survey system
provides automatic inclination surveys on every connection to
enable faster rate of penetration and reduced rig costs.
CASE STUDY
24/7 TECHNICAL SUPPORT• Remotedirectionaldrillingand
MWD operations:- Infrastructure capable to perform
multiple directional & MWD jobs- DD, MWD and drillers
trained on
remote directional drilling• SupportingNDSoperationswith
- QA/QC of sensor data and reports to ensure consistent and
reliable reporting
- 24/7 support for troubleshooting- Standard escalation process
to
include SMEs, engineers etc. to supportfieldstaff
- As required, technicians/support
staffdispatchedtoensurefastresponse
AccuDrift® MWD System Specifications
Sensor Range: 0-7°
Accuracy Inclination ± 0.1° (Resolution .25 in real-time 0.1° in
memory)
Signal Transmission Positive Mud Pulse
Pulse Height Adjustable
Pulse Activation Vibration–flowandrotation
Tool Length 8 ft.
Collar Size
4.75 in. OD x 8 ft. x 3.5 IF box pin
6.5 in. OD x 8 ft. x 4.5 XH box pin
8 in. OD x 8 ft. x 6.625 reg. or NC56 box pin
9.5 in. OD x 8 ft. x 7.625 reg. box pin
Flow Ranges
4.75 in.: 150-325 gpm
6.5 in.: 300-850 gpm
8 & 9.5 in.: 300-1300 gpm
LCM Tolerance
25-40lbs/bblfine,30-50lbs/bblmediumorcoarse(wellmixed)
Battery Life 1,000 hours
Maximum Temperature 150°C (302°F)
Maximum Pressure 20,000 psi
Max. Vibrations, g 20 (rms, random, 15-1,000 Hz)
Max. Shock, g 500
Service Type/Support Unmanned – 24 x 7 x 365
MUD PULSER
SHOCK & VIBRATION
TEMPERATUREINCLINATION
SENSOR
Why choose Nabors’ AccuDrift® System over the competition?
Enhance your operations
Nabors offers an integrated suite of performance products and
services that work with the AccuDrift® system to improve drilling
performance, including Total Control Non-Stop Driller, a sub-based
constant circulation system designed to improve drilling
efficiency, operational safety, hold condition and equipment
integration.
Quality survey data that prevents surprises
Enables faster drilling
Reduced non-productive time
Rig time savings of up to 10 percent
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