WellDefined Automated Survey Solutions
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.
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 (IMO) 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 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
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.
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.