Well ASCII file format

OBJECT WELL Name

[CRS Authority Code Name HorizontalUnit]

[CSYSTEM Easting Northing TVDSS Inclination Azimuth]

[UNITS EastingUnit NorthingUnit VerticalUnit InclinationUnit AzimuthUnit]

[COLOR Red Green Blue [Alpha]]

[UNKNOWN UnknownValue]

[COORDINATES WellEasting WellNorthing DFE]

[WELLTYPE WellType]

[WELLSTATUS WellStatus]

WELLBORE WellBoreName

[COLORWB Red Green Blue [Alpha]]

[TIEIN MDTieIn InclinationTieIn AzimuthTieIn EastingTieIn NorthingTieIn TvdssTieIn]

[STATIONS StationSpecificationType]

Easting Northing TVDSS MD Inclination Azimuth |

Easting Northing TVDSS MD |

Easting Northing TVDSS |

MD Inclination Azimuth

....

[

SIDETRACK SideTrackName KickOffDepth [ParentWellBoreName]

[COLORWB Red Green Blue [Alpha]]

[STATIONS StationSpecificationType]

Easting Northing TVDSS MD Inclination Azimuth |

Easting Northing TVDSS MD |

Easting Northing TVDSS |

MD Inclination Azimuth

....

]

Keywords (the order of these keywords does not matter, except from the OBJECT keyword – this keyword should always be the first one – and the STATIONS keyword; this keyword should always be defined after the corresponding WELLBORE or SIDETRACK keyword)

Keyword	Description	Optional	Comment
WELL	Specifies the object type in this file	No	One value is expected: 1. Name of the well
WELLSTATUS	Specifies the well status	Yes	One value is expected: 1. Status of well (default = EXISTING) When this keyword is not included, the value is assumed as EXISTING well
WELLTYPE	Specifies the well type	Yes	One value is expected: 1. Type of well (default = UNDEFINED) When this keyword is not included, the default type is applied
COORDINATES	Specifies the well coordinates (easting, northing + Derrick Floor Elevation)	Yes	Three values are expected: 1. Easting 2. Northing 3. DFE DFE is a negative depth but positive elevation.
AZIMUTHREFERENCE	Indicates that all azimuths exported from JewelSuite Geomechanics are referenced to Grid North.	Yes (Not present in files exported prior to release JewelSuite Geomechanics).	Has one possible value: 1. GridNorth
TRAJECTORYDEFINITION	Used internally to indicate which type of trajectory data was active for this wellbore at the time it was exported. Thus its setting determines which trajectory data type is used on import.	Yes (Not present in files exported prior to release JewelSuite Geomechanics).	Allowed values are: 1. DeviationSurvey 2. PositionLog
WELLBORE	Main wellbore section	No	Two values are expected: 1. WellBoreName 2. WellBoreType (optional – default = EXISTING) Only 1 WELLBORE keyword can be specified per WELL. All other wellbore need to be SIDETRACK wellbores
COLORWB	Color of the wellbore	Yes	Four values are expected: 1. Red (0-255) 2. Green (0-255) 3. Blue (0-255) 4. Alpha (0-255 – default = 255) When this keyword is not included for the current object, the color will be used from the parent well object
TIEIN	Specifies the wellbore tie in values	Yes	Six values are expected: 1. MDTieIn (default = 0.0) 2. InclinationTieIn (default = 0.0) 3. AzimuthTieIn (default = 0.0) 4. EastingTieIn (default = 0.0) 5. NorthingTieIn (default = 0.0) 6. TVDSSTieIn (default = 0.0) When this keyword is not included in the file, all values are assumed as 0.0 This keyword is ONLY used in context with the WELLBORE keyword; SIDETRACK wellbores do not need the TIEIN keyword.
SIDETRACK	Define a sidetrack section	Yes	Two values are expected: 1. SideTrackName 2. SideTrackType (optional – default = EXISTING) Multiple SIDETRACK keywords can be specified per WELL. Only the first wellbore need to be defined with the WELLBORE keyword
STATIONS	Define the way stations are specified	Yes	One value is expected: 1. StationSpecificationType (default = AHD_ANGLES) When this keyword is not included, the values is assumed as AHD_ANGLES (e.g. Ahd, Inclination, Azimuth only)

Variables

Variable	Description	Description	Min	Max	Comment
WellNorthing	Northing well location	double	-	-	Default = 0.0
WellEasting	Easting well location	double	-	-	Default = 0.0
DFE	Derrick Floor Elevation value	double	-	-	Default = 0.0 DFE is a negative depth but positive elevation.
WellBoreName	Name of the wellbore in this well	string	-	-	No spaces allowed
ParentWellBoreName	Name of the parent wellbore to attach the sidetrack to	string	-	-	No spaces allowed when the parent wellbore is not specified, the previous wellbore is the file is assumed to be the parent wellbore
KickOffDepth	Kick off depth of a sidetrack (ahd value at parent well bore)	double	-	-	Value should be between start and end ahd of specified parent wellbore
WellStatus	Status of the well	int	1	3	1 = EXISTING 2 = PLANNED 3 = UNDEFINED
WellType	Type of the well	int	0	14	0 = UNDEFINED 1 = RBWATINJ 2 = STBWATINJ 3 = RBGASINJ 4 = MCFINJ 5 = STBOIL 6 = MCF 7 = MCFWET 8 = STBLIQ 9 = RBTOT 10 = RBOIL 11 = RBGAS 12 = RBWAT 13 = RBLIQ 14 = STBWAT
MDTieIn	Measured depth tie in value	double	-	-	Default = 0.0
InclinationTieIn	Inclination tie in value	double	0	180deg	Default = 0.0
AzimuthTieIn	Azimuth tie in value	double	0	360deg	Default = 0.0
NorthingTieIn	Northing tie in value	double	-	-	Default = 0.0
EastingTieIn	Easting tie in value	double	-	-	Default = 0.0
TVDSSTieIn	TVDSS tie in value	double	-	-	Default = 0.0
StationSpecificationType	Specifies the way the stations are represented in the file	int	0	3	0 = AHD_ANGLES 1 = XYZ 2 = XYZ_AHD 3 = XYZ_AHD_ ANGLES
MD	Measured depth value of the station	double	-	-
Inclination	Inclination value at station	double	0	180deg
Azimuth	Azimuth value at station	double	0	360 deg
Northing	Northing station location	double	-	-
Easting	Easting station location	double	-	-
TVDSS	TVDSS station location	double	-	-

Example 1 (vertical well)

OBJECT WELL Well2

CRS EPSG 4931 "Australian Antarctic" m

CSYSTEM 569000 168000 1600.0 0.0 0.0

UNITS m m m deg deg

COLOR 0 255 255 255

COORDINATES 2450 600 1600

WELLSTATUS 2

WELLTYPE STBOIL

WELLBORE WellBore2

COLORWB 255 0 0 255

TIEIN 0 0 0 0 0 1600

STATIONS 0

0 0 0

120 0 0

140 0 0

160 5 157

180 9 157

200 14 157

219 18 157

239 23 157

259 27 157

279 32 157

299 36 157

319 41 157

339 46 157

359 50 156

378 55 156

398 59 156

418 64 156

438 68 156

458 73 155

478 77 155

498 82 155

947 82 155

1041 82 155

1052 83 155

1063 84 156

1074 86 156

1085 87 156

1095 88 157

1106 89 157

1117 90 158

1128 92 158

1137 92 157

1145 92 156

1154 92 155

1163 92 154

1172 92 153

1180 92 152

1189 92 151

1198 92 150

1206 92 149

1215 92 148

Example 3 (multi-lateral well)

OBJECT WELL Well3

UNITS m m ft deg deg

COLOR 255 153 0 255

COORDINATES 1000 250 0

WELLBORE WellBore3

COLORWB 255 0 0 255

STATIONS 0

0 0 0

1600 0 0

SIDETRACK Side1 500 WellBore3

COLORWB 255 255 0 255

STATIONS 0

500 0 0

1500 45 90

2000 90 90

3000 90 90

SIDETRACK Side2 2000 Side1

COLORWB 0 255 255 255

STATIONS 0

2000 90 90

3500 90 0

Example 4 (vertical well, using tie-in)

OBJECT WELL Well4

COORDINATES 500 800 0

TIEIN 200 0 0 100 150 500

WELLBORE WellBore4

500 0 0

1500 0 0

Example 5 (vertical well, minimum / all optional fields left out )

OBJECT WELL Well5

WELLBORE WellBore5

0 0 0

1500 0 0