دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

the total time required for an acoustic wave to travel through a substance.

velocity of an imposed sound wave through a rock.

n: the process of recording the acoustic characteristics of sub- surface formations, based on the time required for a sound wave to travel a specific distance through rock. The rate of travel depends on the composition of the formation, its porosity, and its fluid content. Also called sonic logging.

n: land owned by the United States, acquired by deed or otherwise. Such land has never been in the public domain or was in the public domain at one time and was later reacquired by purchase, condemnation, or donation.

the raw, real time recording of the data, later formed into a digital or playback log.

n: a unit of volume often used in oil reservoir analysis, equivalent to the volume (as of oil or water) necessary to cover 1 acre to a depth of 1 foot

abbr: acre-foot.

one acre (43560 ft2) to a depth of one ft.

land leased for drilling exploration.

n: acreage owned in the vicinity of a test well being drilled by another party and contributed to the driller of the well in return for information obtained from its drilling. The assignment of information is usually made on completion of the well.