Services

Formation Thermal Conductivity | Hiring GRTI

GRTI is a professional testing company that can be hired directly to perform a Formation Thermal Conductivity (FTC) Test. The following hiring options outline the various ways that GRTI can assist in determining formation thermal properties for your project.

Hiring Option 1

GRTI will contract to provide the complete installation of the test bore and provide a thermal conductivity test on the bore. GRTI will sub-contract with a local drilling contractor to construct a vertical test bore with an installed u-bend assembly to the proposed design depth for that specific project. The test bore must rest for 3-5 days (depending on the type of drilling process) after installation before the FTC test can begin. This period allows the test bore to equalize thermally with the surrounding formation. GRTI will then mobilize to the site location and perform a thermal conductivity test on the bore to the required specifications for the project. After data collection, a final report will be provided which will include the calculated thermal properties (conductivity, diffusivity, and undisturbed formation temperature), plots of collected data, and a drilling log (obtained from the drilling contractor) which can be used in the future bidding process for that specific project.

GRTI will provide a written quotation (see Request for Quotation) for this option. In order to begin, this option requires a signed purchase order against the provided quotation.

Hiring Option 2

GRTI will contract to evaluate an existing (or new installation by another source) vertical test bore with a properly installed u-bend assembly. After a minimum of 3-5 days following the installation of the test bore, GRTI will mobilize to the site location and conduct a thermal conductivity test.  This approach requires the following:

  • A "FTC Test Well Installation Form" (supplied by GRTI) shall be completed and supplied to GRTI prior to data evaluation.
  • U-Bend assembly shall be installed and grouted up to surface grade so that there are NO voids within the entire vertical length of the bore column. The installation shall comply with all state and locals laws governing the installation of vertical bore applications. In the event the bore is NOT completely free of voids, GRTI will not be responsible for inaccurate conclusion of the analysis.
  • U-Bend assembly shall be completely filled with water during installation to allow for an accurate determination of the undisturbed formation temperature.

After the conclusion of the test and receipt of the Installation Form, GRTI will issue a final report which will include the thermal conductivity, diffusivity and undisturbed formation temperature along with plots of the collected data. GRTI will provide a written quotation (see Request for Quotation) for this option. In order to begin, this option requires a signed purchase order against the provided quotation.

Hiring Option 3

GRTI can be contracted to analyze data obtained by other parties that utilize data acquisition systems that have been pre-approved by GRTI. A final report will be provided based on the supplied raw data. This option requires the following:

  • Data shall be supplied in an electronic format that is compatible with Microsoft® Excel®.
  • A "FTC Test Well Installation Form" (supplied by GRTI) shall be completed and supplied to GRTI prior to data evaluation.

GRTI reserves the right to refuse to provide an analysis of the data for any reason with no expense charged to the customer.

GRTI will provide a written quotation (see Request for Quotation) for this option. In order to begin, this option requires a signed purchase order against the provided quotation and the "FTC Test Well Installation Form" as referenced above.