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Log ASCII standard information


Log ASCII standard (LAS) is a standard file format common in the oil-and-gas and water well industries to store well log information. Well logging is used to investigate and characterize the subsurface stratigraphy in a well.

A single LAS file can only contain data for one well, but it can contain any number datasets (called "curves") from that well. Common curves found in a LAS file may include natural gamma, travel time, or resistivity logs.

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Log ASCII standard

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Log ASCII standard (LAS) is a standard file format common in the oil-and-gas and water well industries to store well log information. Well logging is used...

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Well logging

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service companies Log ASCII Standard (LAS) Wireline List of abbreviations in oil and gas exploration and production "Groundwater Logging". Harald Bolt, Wireline...

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LAS

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data Linear alkylbenzene sulfonate, a common class of surfactants Log ASCII Standard, computer file format in the petroleum industry Lung allocation score...

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List of abbreviations in oil and gas exploration and production

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activation override tool LARS – launch and recovery system LAS – Log ASCII standard LAT – lowest astronomical tide LBL – long baseline (acoustics) LC...

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Syslog

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In computing, syslog /ˈsɪslɒɡ/ is a standard for message logging. It allows separation of the software that generates messages, the system that stores...

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Escape character

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inventing this mechanism during his work on the ASCII character set. The Escape key is usually found on standard PC keyboards. However, it is commonly absent...

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Backtick

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ISO 646 was born and the ASCII standard updated to include the backtick and other symbols. Some early typewriters and ASCII peripherals designed the backtick...

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Modbus

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Modbus ASCII makes use of ASCII characters for protocol communication. The ASCII format uses a longitudinal redundancy check checksum. Modbus ASCII messages...

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FASTQ format

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Both the sequence letter and quality score are each encoded with a single ASCII character for brevity. It was originally developed at the Wellcome Trust...

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Vertical bar

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like a horizontal line of dashes. It was also (briefly) part of the ASCII standard. An initial draft for a 7-bit character set that was published by the...

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Printk

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The string specifying the log level consists of the ASCII start of the header character followed by a digit describing the log level or the character 'c'...

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Wellsite Information Transfer Specification

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ASCII-based transfer specification Layer 1 describes a binary-based format based on 25 predefined fixed-size records and the Log Information Standard...

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File Transfer Protocol

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are defined: ASCII (TYPE A): Used for text. Data is converted, if needed, from the sending host's character representation to "8-bit ASCII" before transmission...

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Value change dump

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as "variable change dump") is an ASCII-based format for dumpfiles generated by EDA logic simulation tools. The standard, four-value VCD format was defined...

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IBM MQ

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Message: Messages are collections of binary or character (for instance ASCII or EBCDIC) data that have some meaning to a participating program. As in...

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Hyphen

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is called the "hyphen-minus" by Unicode, deriving from the original ASCII standard, where it was called "hyphen (minus)". The word is derived from Ancient...

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LTspice

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are stored as an ASCII text file, which can be viewed or edited with any ASCII text editor programs. One of the side benefits of an ASCII file format is...

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Email

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webmail interface to send or receive messages or download it. Originally an ASCII text-only communications medium, Internet email was extended by Multipurpose...

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List of HTTP header fields

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headers are usually invisible to the end-user and are only processed or logged by the server and client applications. They define how information sent/received...

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International Phonetic Alphabet

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non-commercial use. Several systems have been developed that map the IPA symbols to ASCII characters. Notable systems include SAMPA and X-SAMPA. The usage of mapping...

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World Wide Web

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2005, Unicode gained ground and eventually in December 2007 surpassed both ASCII and Western European as the Web's most frequently used character encoding...

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Bcrypt

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('sha512crypt') $2a$ The original specification did not define how to handle non-ASCII character, nor how to handle a null terminator. The specification was revised...

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List of file formats

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ANS – American National Standards Institute (ANSI) text ASC – ASCII text AWW – Ability Write CCF – Color Chat 1.0 CSV – ASCII text as comma-separated...

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Basic access authentication

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encoding is by default unspecified, as long as it is compatible with US-ASCII, but the server may suggest the use of UTF-8 by sending the charset parameter...

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Simple Mail Transfer Protocol

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started out purely ASCII text-based, it did not deal well with binary files, or characters in many non-English languages. Standards such as Multipurpose...

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Trie

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encoding—resulting in, for example, a size of 256 in the case of (unsigned) ASCII.: 732  The null links within the children of a node emphasize the following...

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Post Office Protocol

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support the UIDL command. This can be any string of standard visible (non-whitespace) 7-bit ASCII characters up to 70 characters. IMAP instead provides...

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