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A recent assessment of Diagnostic Fracture Injection Tests (DFITS) revealed inconsistent report quality and unsubmitted reports, so operators are reminded of the requirements for submissions of well test data.

DATE ISSUED: Sept. 15, 2022


The BC Energy Regulator (Regulator) is reminding operators of the requirements for submissions of well test data.

Diagnostic Fracture Injection Tests (DFITs)

The Regulator recently completed an assessment of Diagnostic Fracture Injection Tests (DFITS) submissions. Also known as “mini-fracs”, these commonly performed tests gather valuable rock mechanics and reservoir pressure data, supporting well completion design and risk mitigation. Results of the assessment revealed inconsistent report quality and numerous unsubmitted reports.

The following clarifies expectations for test submissions:

A report of any DFIT tests conducted must be submitted to the Regulator within 60 days of the end of the test, in accordance with section 73(3) of the Drilling and Production Regulation. As of June 1, 2020 a DFIT submission must comprise of one PAS file and one or more PDF file(s) which include the following:

a. A plot of the entire test (if converting from surface pressure or run depth to mid-point of perforations (MPP), include calculation details),

b. A log-log diagnostic plot with pressure derivative,

c. G-Function plot,

d. Pre-closure analysis methodology of geomechnical results, including closure pressure and closure time,

e. After closure analysis methodology including reservoir pressure extrapolation, and

f. A summary regarding the analyst’s confidence level regarding the results.

Well Test Submissions

All well test data submissions are made using the Regulator’s eSubmission portal and are to be comprised of one PAS file and one or more PDF file(s). A separate submission is required for each PAS file generated. Further information on well data submissions can be found on the Documentation section of the Regulator’s website.

The Well Testing and Reporting Requirements Guideline document and additional information related to well testing is located on the Regulator’s website under Reservoir Management – Well Testing.

If you have any questions regarding this Technical Update, please contact:

Terence Tkatchuk

Well Test Analyst

BC Energy Regulator


Michelle Gaucher

Senior Reservoir Engineer

BC Energy Regulator


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