New Well Report (Well Log) Form
Mike Wei, P. Eng., WLAPDiana Allen, P. Geo., SFU
Tammy Blair, WLAP
BCGWA AGM Penticton, March 4, 2005
Outline
• Purpose for a new well form
• Overview of form
• Next steps
• Example of information in well construction reports to assist in regional mapping of the aquifer at Grand Forks
Why change the current well log form?
• Update existing form with new terms in the Ground Water Protection Regulation (GWPR); e.g., class of well
Elements of the new form• Primarily designed for water wells
• Record of work of:
– Well construction,
– Significant alteration,
– Well closure
• Incorporates new terms and requirements in the GWPR
• Promotes standardization of well reporting, with particular focus on lithologic description
• Facilitates more efficient analysis of well data
How was the form developed?
• Based largely on the existing well log form
• Incorporates GWPR reporting requirements for well construction, alteration or closure work
• Review / input from the Ground Water Advisory Board (GWAB) and select water well drillers
Two options for the form
• Two options for the form are available:
– “free” form
– “Ontario” form
• Both promote the use of standard lithological terms; difference in the form is how lithology is entered by the driller;
• Everything else on the form is the same
Overview of the form - header
Overview of form - top part
• Well owner and mailing address• Well location (critical for processing into WELLS)
– Address, Legal or PID and
– GPS (UTM or LAT LONG)• Type of work• Method of drilling• Type of well (refer to class and sub-class on back of form)
Overview of form - lithology
• Refer to standard lithologic descriptions on the back of the form
• What are standard lithologic descriptions?– Lithology type
– Hardness
– Colour
Overview of form – lithology(Ontario form)
• Requires a “shift in thinking” on how lithology is filled out “by numbers”
• Benefit: standardized lithology provides a common basis for describing, processing and eventual interpretation of data
• Electronic well report can be printed out with lithologic terms as word descriptions, not numbers
Example of Ontario Litho Entry
1 = most dominant; 2 = second most dominant; 3 = minor; 4 = trace
Overview of form – casing and screen details
Overview of form – development, yield, water quality, summary, (closure)
Overview of form – footer
• Disclaimer
• Form number
• Additional sheets, if necessary
• Copies
Overview of form – back• Class, sub-class of wells
• FOI statement
• Guidance on how to fill out the lithologic table
• Guidance on how to fill out the well closure table
• Information on who is responsible for the work
• Abbreviations
How does the form relate to the WELLS database?
• Database is now being formatted to accommodate this new form
• 8 ½” X 14” forms (hard copy “pads”) will need to be entered into WELLS by WLAP staff
• A driller will be able to enter the data directly on-line using a new web-based well entry form (under development). For on-line submission, the report may be formatted to print on an 8 ½” X 11” sheet
Next steps
• Indication of interest from drillers in trying out one or both versions of the form in the field
• WLAP to print up well form “pads”
• Get feedback from drillers for improvement of structure of the form
• Revise and finalize version of form by Nov. 1, 2005
Well records are critical to ouroverall understanding of aquifers
• Recent aquifer assessment studies:
– Grand Forks, Abbotsford, Gulf Islands
– Okanagan Basin
– All aquifer classification mapping and vulnerability studies
• Contaminated site assessments
Grand Forks valley
Kettle River
Grand Forks city
Bedrock surfacemodel (bottom ofvalley sediment fill)
Deep sands (probably more extensive in reality)
Clay / Till (deep, mostly unknown sediments)
Silt / silty sands (lacustrine deposits, with fluvial sediments)
Sands (“aquifer”) (fluvial & glaciofluvial sediments)
Gravels (“aquifer”) (most recent fluvial sediments)
Thank you!
Questions?