Frequently Asked Questions

You will find answers to many of your questions below, ranging from equipment setup to data interpretation.

1.) FIS Related Questions

1.1) What is the typical amount of sample that needs to be provided?

FIS analysis requires at least 5 grams of clean and dry sample or 15-25 grams per sample if they are dirty (i.e., OBM, chemical additives, etc).

1.2) What is the difference between a long tier well and a short tier well?

A short tier well consists of 180 samples or less. A long tier well ranges from 181 samples to 575 samples (the maximum possible). There is also a discounted price for short tier wells.

1.3) What is the recommened sample interval for a well?

Our recommendation is to sample heavily through zones of interest (1-3 m or 3-10 ft intervals) and then fill in samples (5-10 m or 15-30 ft intervals) above and below until a target price structure is reached (long tier or short tier).

1.4) Should I provide additional information?

Any geological information such as mud gas log, lithology track/log, and formation tops will be beneficial to our petrography selections and interpreations.

1.5) What is the typical turn around time for an FIS analysis

Based on average work loads, a turn around time of 7 weeks is typical. It is usually around 3-4 weeks for initial FIS report to be finished. Please add an extra 2 weeks if the samples need washing.

1.6) Where do I ship the samples?

Please email us with this question as it can depend on your location and the current work load of our contracted sample washers.

1.7) What customs information should I put down when shipping internationally?

Please label all samples on customs related forms as "Deep Earth Samples." This will help US Customs recognize that a soil permit is not necessary, which can slow delivery.

1.8) Can old cuttings or core be analyzed even if they are 40+ years old?

Yes they can and their age will not affect the analysis.

1.9) Can an FIS analysis help when we're unable to run a traditional well log?

Yes. We can analyze the cuttings from the well and report on the most likely well bore content.

1.10) Can an FIS analysis help me locate highly fracture reservoirs?

Yes and we are capable of distinguishing zones that are highly fractured and possibly determine fault location.