WELLDEFINED SERVICES

Directional Surveying that improves wellbore positioning for precise well placement and anticollision.

K+ M Technology group provides a wide scope of comprehensive WellDefined Drilling survey services to reduce drilling and geological risk by providing the level of well placement accuracy required to prevent geological sidetracks. 

WellDefined Drilling Survey Services Include:

In-Field Referencing IFR

K&M WellDefined drilling survey services offer In-Field Referencing IFR survey tool codes (IFR1 and IFR2) as defined by the Operator Wellbore Survey Group of the Industry Steering Committee on Wellbore Survey Accuracy. The IFR1 tool code does not account for real-time disturbance and requires a high-resolution local crustal model that must be created to cover the drilling area of interest. The IFR2 tool code includes real-time disturbance compensation and must be deployed at high latitudes to compensate using a nearby INTERMAGNET magnetic observatory OMO) or the disturbance field forward prediction (DFFP) technique. DFFP is achieved by deploying instruments to the rig site and modeling the disturbance effects using the nearest IMO.

Multi-Station Analysis MSA

K&M WellDefined drilling survey services compensate for axial and cross-axial magnetic interference and minimize MWD survey sensor errors. The services utilize a proprietary multi-station technique that is independent of wellbore orientation and that produces a proven highly accurate corrected magnetic azimuth.

High Definition Surveys

High Definition Survey service utilizes continuous accelerometer and magnetometer measurements of the MWD tool to build a higher resolution survey that describes all wellbore deflections, including microdoglegs, which are not identified by static surveys. The HDS service surveys as often as every 10 ft. greatly improving on the 100 ft [30ml survey interval of traditional MWD surveys. This process replaces traditional directional survey methods with a high-resolution description of the well path to better capture true borehole trajectory and avoid significant TVD errors

HDS Special Benefits :

  • Reduce rig time by decreasing static survey frequency
  • Enables high accuracy wellbore position through the use of actual tortuosity for TVD calculation.
  • Increases post-job torque and drag calculation accuracy
  • Optimized ESP setting depth selection
  • Improves log interpretation and reservoir modeling Enhances TVD accuracy for LWD tie-in
SAG

Utilizing the MWD collar deflection technique caused by gravity and wellbore curvature, this service offers a BHA sensor misalignment correction to qualify for OWSG SAG tool code. The SAG correction magnitude depends on BHA type, sensor placement. hole size, stabilizer size, and several other factors.

Combine Inclination of Two Packages

The Dual Inclination Processing is a feature that enables the clarification of inclination, by comparing it to real-time inclination readings from another tool. This technology utilizes using two survey packages within the same drill string to improve the inclination angle accuracy by improving the accelerometer sensor bias and scale factor. The primary package is within the MWD tool while the secondary package is installed within the Rotary Steerable System (RSS). Two independent survey packages are measuring the same wellbore and allow a reduction of the accelerometer bias. Several strict QC rules are applied to filter the data and give the most reliable reading possible. Dual inclination surveys significantly improve TVD accuracy and reduce the vertical uncertainty while drilling.

APPLICATIONS

  • Unconventional drilling
  • Hardline drilling
  • Pad or multi-pad drilling
  • Extended reach drilling ERO
  • Collision avoidance
  • Tight geological targets
  • Thin-layer drilling with Tight TVD
  • Geosteering drilling
  • Lateral wellbore spacing
  • Mature field development
  • Relief well drilling
  • Geothermal wells
  • Well interception application

BENEFITS

  • Increased wellbore accuracy
  • Decreased drilling time
  • Reduced costs
  • Longer Laterals
  • More wells per pad
  • Mitigated collision risk
  • Better TVD control
  • Better reservoir mapping
  • Increased confidence in LWD correlation
  • Real-time with no additional crew nor tools on the rig

FEATURES

  • Applicable to all MWD systems
  • 24 / 7 survey processing center
  • Multi-station compensation-axial and cross-axial interference
  • 3D crustal cube modeling
  • Real-time disturbance compensation
  • Sag and BHA deflection correction
  • High-definition survey from continuous data
  • Combine surveys from two tools
  • Drill pipe depth correction
  • Drilling engineering and directional drilling support

Directional surveys produce valuable information for drilling operations. Without accurate and properly maintained surveys, the risk of colliding with another well and losing production increases significantly.

K&M WellDefined drilling survey services optimize drilling applications in real-time by providing accurate wellbore positioning data, enabling timely correc­tions to wellbore trajectory without requiring additional tools or onsite per­sonnel. The services are designed for geologists, geophysicists, and drillers who need highly accurate, real-time guidance methods to position horizontal wells precisely while decreasing the well spacing.

For pad drilling operations, K&M WellDefined drilling survey services allow to drill and place multiple horizontal wells in the reservoir while minimizing the risk of wellbore collision that can result in HSE situations. Integrating these services into pad designs allows simultaneous operations to ensure that drilling and financial objectives are met. The services also increase the size of the drilling target and are available to all MWD service providers for all types of MWD tools.

Drilling Service Flyer
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Schlumberger offers standard infield referencing (IFR) survey tool codes as defined by the Operator Wellbore Survey Group of the Industry Steering Committee on Wellbore Survey Accuracy. The IFR1 tool code does not account for real-time disturbance and requires a high-resolution local crustal model that must be created to cover the drilling area of interest. The IFR2 tool code includes real-time disturbance compensation and must be deployed at high latitudes to compensate using a nearby intermagnet magnetic observatory (IMO) or the disturbance field forward prediction (DFFP) technique. DFFP is achieved by deploying instruments to the rigsite and modeling the disturbance effects using the nearest IMO.

flyerimage3

To compensate for axial and crossaxial interference
and to minimize sensors errors. the services utilize a
proprietary multistation technique that is independent
of wellbore orientation and that produces a highly
accurate corrected magnetic azimuth.
Schlumberger drilling survey services are optimized
for efficient land drilling through the deployment of a
centralized survey processing and support center.
which is located in Denver and is operational 24 /?.
Additional support is available from centers in Houston
and Calgary.

When Schlumberger drilling survey services are used in conjunction with an optimized pad design, operators are able to drill and place multiple horizontal wells more precisely.

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Locations:

US Office:
Houston, TX, U.S.A
480 Wildwood Forest Drive, Suite 440
The Woodlands TX 77380
Phone: (281) 298-6900
Fax: (281) 298-6875

UK Office:
8, Kirkton Av,
Dyce Aberdeen
Phone:+44 7881 676325

UAE Office:
Abu Dhabi, U.A.E.
28th Floor Sky Tower, Al Reem Island
P.O. Box 21
Abu Dhabi
Phone: +971 261 017 74

RUSSIA Office:
Moscow, Russia
Leningradskoye shosse,
16 A Bld 3, 125171
Moscow, Russia
Phone: +7 910 481 1648

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