ELECTRICAL PROPERTIES (FF, m, & n)

Contact

Weatherford Laboratories employs the latest in electrical properties techniques. These are designed best practices for optimizing results.

Resistivity logs are perhaps the most important tools available to a petrophysicist.  They can contribute information on lithology, texture, facies, and source rock aspects.  However, the main use is to find and help determine hydrocarbon reserves by providing a method for calculating water saturation. 


The raw data from these tools are of lesser importance unless some kind of calibration model is used to interpret the data.

Data from the resistivity log, Rt (formation resistivity at a given saturation) as a function of depth, has to be used with a model and some conversion factors. The conversion factors, i.e. the saturation exponent n and the formation factor FF, are obtained from cores. Using these together with Archie's relation between water saturation, resistivity index, and the Rt signal from the log, the hydrocarbon reserves are found.

What makes Weatherford Laboratories different?

  • Largest industry capacity for FF and RI w/porous plate Pc

  • 1,000 psi membrane plate technology

  • Oil/Brine FFRI/Pc at Rescon

  • Multidiameter electrical testing (rotary sidewall up to a full diameter of 4 in.)

Why Weatherford Laboratories? Our Story.

Core sample measurements have offered a tangible and direct means of determining critical reservoir parameters. Our staff at Weatherford Laboratories, along with guidance from the clients we serve, customize special core analysis (SCAL) to maximize results with a focus on streamlining cost. 


In the exploration and exploitation of hydrocarbon bearing reservoirs, direct measurement of physical and chemical properties have proven themselves priceless.