Publication information

Geological Survey of Canada
Open File 3105

Geographic Oil & Gas Grids v. 3.1

D.W. Lepard

© Her Majesty the Queen in Right of Canada, as represented by the Minister of Natural Resources Canada, 2015

doi:10.4095/296441

Publications in this series have not been edited; they are released as submitted by the author.

View the licence agreement at http://data.gc.ca/eng/open-government-licence-canada

Recommended citation

Lepard, D.W., 2015. Geographic Oil & Gas Grids v. 3.1; Geological Survey of Canada, Open File 3105, 1 .zip file. doi:10.4095/296441

Contents

This Windows application generates Oil and Gas grids which optionally include points with area identification. There are 2 Tab Sheets. The Main Tab covers the Western Twp/Rge system, the BC NTS system, and the Canada Lands Frontier system. All grids which apply for a given area may be selected. Borders between the systems ensure that no overlaps occur. The second Tab covers the NTS and the Canada Lands Frontier system as separate universal systems.

Directory structure

readme.rtf (English version of this file)
\Application-XTwpRgeGrid (contains all files necessary to run the application)
	NTV2.bpl
	readtool.txt
	rtl70.bpl
	TwpGrid.exe
\DelphiCode-XTwpRgeGrid (complete Delphi code used to develop the tool)
	BrowseUnit.dcu, BrowseUnit.dfm, BrowseUnit.pas, Geomath.dcu, Geomath.pas, HelpU.dcu, HelpU.ddp, 	HelpU.dfm, HelpU.pas, Main.dcu, Main.ddp, Main.dfm, Main.pas, MapSubs.dcu, MapUnit.dcu, 	MapUnit.ddp, MapUnit.dfm, MapUnit.pas, NADData.dcu, NTV2.bpl, readtool.txt, rtl70.bpl, TwpGrid.cfg, 	TwpGrid.dof, TwpGrid.dpr, TwpGrid.dsk, TwpGrid.exe, TwpGrid.res, AboutDlg.dcu, AboutDlg.ddp, 	AboutDlg.dfm, AboutDlg.pas

Adobe®, Acrobat®, and Reader® are either registered trademarks or trademarks of Adobe Systems Incorporated in the United States and/or other countries.

Detailed Description

There is a dual input system. The user may select either the Grid Location or the Geographic Location. Input automatically populates the one not selected. The Geographic Location is adjusted to be 1 metre inside the grid at the selected grid point.  The Map Window, lower panel, displays both the resultant geographic coordinates and the projection coordinates. Projection coordinates are automatically computed from the appropriate grid tab sheet shown for one of UTM or TM, Lambert, Polyconic, and Albers Projection systems.

Plot File parameters are not universal. Paper size is for the PDF and plot files meant to be used on paper. The Postscript and HPGL files present the Landscape mode rotated 90 degrees within the Portrait model. Corel Draw may present this looking like a true landscape. The PDF was used as a simple preview device. The DXF(Geo) was meant to capture grids for GIS work. The projection coordinates for this case are used, as calculated, without subtracting any origin. Selecting a 1:1 scale makes it easy to convert to Geographic coordinates in a GIS system. 

Annotation presents some special problems. Surfer has none available; DXF simply presents the annotation points. There is a crude algorithm for Font Size which may need to be adjusted. For use in Corel Draw we
found PDF files failed. HPGL files failed by presenting annotation in various sizes. Postscript needed to be simplified in order to centre the annotation; the string length factor, used only in this case, may need to be adjusted.

System requirements

PC with 486 or greater processor, or Mac® with OS® X v. 10.2.2 or later; Adobe® Reader® v. 6.0 or later; video resolution of 1280 x 1024.

Author contact information

D.W. Lepard
Geological Survey of Canada
3303-33rd Street NW, Calgary, AB T2L 2A7

Availability information

This publication is available for free download through GEOSCAN (http://geoscan.nrcan.gc.ca/).