This feature class represents wells of all types. Additional data about wells should be in a linked external table via Well_ID or API.
| Field Name | Field Alias | Length (text fields) |
Field Type | Field Value | Default | Allow Nulls? | Attributes / Examples | Description / Notes |
|---|---|---|---|---|---|---|---|---|
| FGDC_code | " | 16 | String | CVD variable | [null] | TRUE | 30.3.12 | FGDC geologic symbol reference number. |
| Well_ID | " | 128 | String | variable | FALSE | well name | Well Identifier | |
| API | " | 20 | String | variable | [null] | TRUE | 3003500013 | Well API number (unique ID) |
| WellClass | " | 16 | String | variable | unspecified | FALSE | unspecified, exploration, oil, gas, water, etc | Class of well |
| WellType | " | 16 | String | variable | [null] | TRUE | supply, injection, monitor, production | Type of well of specified class. |
| WellSubTyp | " | 16 | String | variable | [null] | TRUE | Subype of well of specified type. | |
| DrillType | " | 16 | String | variable | [null] | TRUE | core, mud-rotary, reverse circ, wire rig | Drilling method. |
| Township | " | 5 | String | variable | [null] | TRUE | 10N, 12.5S | Township (some 1/2 Townships) |
| Range | " | 5 | String | variable | [null] | TRUE | 20W, 21.5E | Range (some 12 Ranges) |
| Sectn | Section | short integer | Range domain | [null] | TRUE | 1 through 36 | Section | |
| UnitLetter | " | 1 | String | variable | [null] | TRUE | A through P | Quarter-quarter section ID |
| County | " | 50 | String | [null] | TRUE | San Juan | County | |
Operator |
" | 25 | String | variable | [null] | TRUE | Yates Petroleum | Operator of well. |
| Owner | " | 25 | String | variable | [null] | TRUE | Owner of well. | |
| Status | " | 12 | String | variable | [null] | TRUE | unknown, producing, monitoring, municipal, domestic, p&a | Status of use of well. |
| TotalDepth | " | Single | variable | [null] | TRUE | 1000 | Total depth of well | |
| CollarElev | " | Single | variable | [null] | TRUE | collar elevation | Elevation of well collar (AKA Kelley Bushing) | |
| Dpth2Water | Depth2Water | Single | variable | [null] | TRUE | 200.2 | Depth to water | |
| StWaterElv | StaticWaterElevation | Single | variable | [null] | TRUE | 5430.6 | Static elevation of water table | |
| Units | " | 8 | String | CVD fixed | [null] | y |
feet, meters, etc. see: LengthUnits |
Units used for elevation and TD |
| VertDatum | " | 8 | String | CVD fixed | [null] | TRUE | unknown, NGVD-29, NGVD-88, GRS-80 | Vertical Datum used for reported elevation. |
| FtgNS | Footage_NS | 8 | Single | variable | [null] | TRUE | Footage from north or south section line | |
| NS | North_or_South | 1 | String | CVD fixed | [null] | y |
N, S | Whether footage is measured north or south |
| FtgEW | Footage_EW | Single | variable | [null] | TRUE | footage from east or west section line | ||
| EW | East or West | 1 | String | CVD fixed | [null] | y |
E, W | Whether footage is measured east or west |
| SpudDate | " | date | variable | [null] | TRUE | Date drilling started | ||
| CompDate | CompletionDate | date | variable | [null] | TRUE | Date drilling completed | ||
| PlugDate | " | date | variable | [null] | TRUE | Date well was plugged | ||
| DwnHoleSur | DownholeSurvey | 1 | short integer | boolean | [null] | y |
y, n | Downhole survey done? |
| Geophyslog | GeophysicalLog | Short Integer | boolean | no | FALSE | 1=yes/TRUE, 0=no/FALSE | Geophysical log made? | |
| GeolLog | GeologistsLog | Short Integer | boolean | no | FALSE | 1=yes/TRUE, 0=no/FALSE | Geologist logged well? | |
| CoreExists | " | Short Integer | boolean | no | FALSE | 1=yes/TRUE, 0=no/FALSE | Core sampels exist? | |
| Cuttings | CuttingsExist | Short Integer | boolean | no | FALSE | 1=yes/TRUE, 0=no/FALSE | Cuttings exist? | |
| LocAccType | LocAccuracyType | 50 | String | variable | [null] | TRUE | precision gps, handheld gps, good topo, poor topo, planimetric, survey, map and compass, triangulation, distinctive feature | Accuracy of position. |
| LocAccMeas | LocAccuracyMeasure | 16 | String | variable | [null] | TRUE | EPE(m), PDOP | Criteria for deterimining accuracy of position. |
| LocAccVal | LocAccuracyValue | Single | variable | [null] | TRUE | 15 | Numeric measurement of locataion accuracy | |
| DsplyScale | DisplayScale | Long Integer | CVD fixed | 24000 | TRUE | see: DisplayScale | Denominator of display scale: display feature at scales larger than number specified (=< denominator). Zero indicates data that should never be displayed. | |
| SourceID | " | 128 | String | variable | [null] | unknown; unspecified; Smith, 2006b [variable] | Feature level metadata (who mapped this); related to bibliographic detail | |
| Comments | " | 255 | String | variable | [null] | TRUE | description | Comments about this particular well. |