Sensors and Logging Tools

During drilling activities, useful information can be extracted from the formation to help gather information about porosity, permeability and rock characteristics — leading to better characterization of the reservoir to support faster, more efficient drilling and better production. Measurement while drilling (MWD) and logging while drilling (LWD) tools have helped to increase yields and profitability.

Contours of electrometric from LWD tool in the well and interaction with formation.

ANSYS solutions are used both for sensor/tool design and for signal optimization within the formation. By helping engineers understand acoustic, pressure, electromagnetic and magnetic resonance issues, software from ANSYS leads to more robust product designs. Fluid mechanics, structural analysis and electromagnetic solutions from ANSYS can be applied to these aspects of sensor and logging tool design:

  • LWD antenna design. Simulation can help maximize sensitivity for complex three-dimensional drill bit trajectories as they enter complex formations. ANSYS software can account for realistic environmental conditions such as antenna shape, mandrel affect, borehole effect, mud invasion zones, anisotropic formation properties and mandrel eccentricity.
  • Parametric studies of tool and environmental variables. ANSYS software can quickly model a wide range of real-world conditions — and determine the appropriate product response. Engineers can design responsive, smart drilling systems that allow operators to quickly interpret operating conditions and adjust equipment as needed.
  • LWD antenna electromagnetic characterization. ANSYS can ensure the compatibility of receiver/transmitter electronics, in order to maximize signal integrity and ensure that tools never operate "blind" in the field.

LWD tool design and resulting electromagnetic field.