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Definition
Ohio Department of Natural Resources Division of Geological Survey Digital Well Location Data Files Disclaimer The information contained in the accompanying digital well location files has not been fully reviewed for accuracy and conformity with present Ohio Geological Survey standards for published or open-file materials. The Ohio Geological Survey does not guarantee these files to be free from errors, omissions, or inaccuracies and disclaims any responsibility or liability for interpretations or decisions based thereon. Notice: The accompanying well location data files are the first release from a long-term project to convert Ohio's oil and gas well data to digital format. Problems exist in these files concerning well permit numbers. This is due to the variability in the methods that have been used over time to issue permit numbers and other types of well identifiers in Ohio. Therefore, a number of different types of well ID's will be found in the accompanying files. Duplicate permit numbers may also be found within a given county. Over the next year, the Divisions of Geological Survey and Oil & Gas will be working to assign well identifiers to all Ohio wells following the American Petroleum Institute's standards for numeric well codes. Until this work is complete, it may not be possible to use the data, as released, to create a unique index of well numbers for Ohio. File Format The well data files were created in Microsoft Access v.7.0. All files have an extension of .DBF. These files can be read directly by most common PC database management programs (e.g. Dbase, FoxPro, Paradox) and by many popular spreadsheet programs (Excel, Lotus, Quattro Pro). Update Frequency The well location files will be updated periodically over the next few months depending upon well drilling and completion per township/county. Keep a record of the file dates that you download to compare to later versions. Comments Your feedback on this project is very important to us. Please send comments to: Larry Wickstrom Ohio Geological Survey 4383 Fountain Sq. Dr. Columbus, Ohio 43224-1362 Or email to: larry.wickstrom@dnr.state.oh.us ======================================================================================= Export fields from Digitized well spot maps. PERMIT Permit number associated with the well. It can include regular permit numbers issued by the Division of Oil and Gas, old "A" permit numbers issued by the Division of Mines before 1965, Pepper numbers, "D" permit numbers, "L" permit numbers, and other assorted numbering schemes. It can also include permit numbers that start with OCI - NNNN. These are temporary permit numbers assigned by the contractor to those wells that either have an unknown or uncertain permit number. These temporary numbers will be used to identify wells whose permit numbers need to be resolved or assigned new permit numbers in those instances where they do not have a permit number. TYPECODE Code used to identify the type of permit number. Below is the list of typecodes: R = Regular permit numbers issued by the Division of Oil and Gas since 1965 A = Permit number issued by the Division of Mines before 1965. D = Permit numbers assigned to unpermitted wells for a specific Ohio Geological Survey project prior to 1965. L = Permit numbers assigned to unpermitted wells for a specific Ohio Geological Survey project prior to 1965. P = Pepper numbers. Numbers assigned to unpermitted wells by the U.S. Geological Survey for the Clinton sandstone and Berea Sandstone studies. U = Wells which have unknown permit numbers. They are assigned OCI or MCI numbers. CELLNAME Well Symbol. The list of well symbols is located below: WELLB = Permitted location. WELLH = Expired permit location. WELLE = Gas show. WELLS = Gas well. WELLF = Plugged gas well. WELLG = Gas and oil show. WELLJ = Plugged gas and oil show. WELLO = Oil show. WELLR = Oil well. WELLT = Plugged oil well. WELLN = Gas well with oil show. WELLU = Oil well with gas show. WELLX = Plugged oil well with gas show. WELLV = Oil and gas well. WELLY = Plugged oil and gas well. WELPN = Plugged gas well with oil show. WELLW = Dry hole. WELLK = Dry hole with gas show. WELLL = Dry hole with oil show. WELLM = Dry hole with oil and gas show. WELLD = Injection well. WELLP = Plugged injection well WELLQ = Plugged water well. The well was originally drilled for petroleum. WELLZ = Well producing oil and gas from two or more horizons. WDHPS = Plugged well that produced gas from two or more horizons. WEDHN = Well producing gas with a show of oil from two or more horizons. WEDHS = Well producing gas from two or more horizons. WEDHR = Well producing oil from two or more horizons. WDHPU = Plugged well that produced oil with a gas show from two or more horizons. WDHPR = Plugged well that produced oil from two or more horizons. WEDHU = Well producing oil with a gas show from two or more horizons. WDHPN = Plugged well that produced gas with a oil show from two or more horizons. WELPZ = Plugged well that produced oil and gas from two or more horizons. STARR = Unknown status. CELORG_X X coordinate of the well, in Ohio State Plane Coordinate System. Please refer to the county to determine the Ohio State Plane Coordinate System Zone CELORG_Y Y coordinate of the well, in Ohio State Plane Coordinate System. Please refer to the county to determine the Ohio State Plane Coordinate System Zone MAPNAME The graphics file in which the well is located. The first three numbers of the file name correspond to the API county code and the second four numbers correspond to a township coding scheme that is used by the Ohio Geological Survey. This township-coding scheme is located in the Survey's DDF3 data files. An example of map name is below: 1330110.wel = this is the graphics file name in which the well is located. 133 corresponds to Portage County and 0110 corresponds to AURORA township. PDFM1 A field generally used to display the first producing formation. It is also used as a general text field for such items as Lost Hole (LH), SWIW, along with any other text that appears around a well. PDFM2 A field generally used to display the second producing formation. It is also used as a general text field for such items as Lost Hole (LH), SWIW, along with any other text that appears around a well. IPOIL Initial production of oil. IPGAS Initial production of gas. |
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