From this example, we can see how comments are used to make nicely Information about the well itself, such as the location and drilling company,Īre given. The four required attributes are placed first. ft - 999.25 : Elevation of Casing Flange above Permanent Datum ft 1462.00005 : Elevation of Ground Level Above Permanent Datum ECF. ft 22.00000 : Elevation of Drill Floor Above Permanent Datum EGL. ft 22.00000 : Elevation of Kelly Bushing Above Permanent Datum EDF. ft 1462.00005 : Elevation of Permanent Datum ( PDAT ) above Mean Sea Level EKB. ![]() ft 22.00000 : Elevation of Depth Reference ( LMF ) Above Permanent Datum EPD. There should be no blank lines in a LASįile just start a line with “#” to make a “blank” line. Comments are sometimes used to make the formatting look nicer ASCII Data (~A): this final section holds the log dataĪny line starting with a number sign (#) is a comment, and the rest of the line. ![]() Other (~O): used to store information that doesn’t belong in the other.Parameters (~P): contains parameters or constants used in the file.The only required attribute is DEPT (depth). Curve Information (~C): defines the name and units of each column ofĪSCII log data.Theįour required attributes in this section are STRT, STOP, STEP, and NULL. Location, and the start value, stop value, and step size of the log data. Well Information (~W): contains information about the log data, wellbore.Version Information (~V): contains information about the version, date,.The ASCII log data sectionĮach section is separated by a line starting with a tilde (~) characterįollowed by a letter denoting the section type. They also provide information about the log data, such as the column names,Ĭolumn units, data start location, and null value. ![]() Provide metadata, such is the LAS file version, drilling location, and date. A LAS file is divided into header sections and ASCII log data.
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