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WIRELINE LOGGING [2 records]

Record 1 2004-07-12

English

Subject field(s)
  • Oil Drilling
DEF

A continuous measurement of formation properties with electrically powered instruments to infer properties and make decisions about drilling and production operations ...

CONT

A log is the recording of one physical property of the formation crossed through by a borehole or of the geometric characteristics of the hole or casing or the flow behavior of a well as a function of depth. Wireline logging is performed with a sonde or probe lowered into the borehole or well, usually after the drillstring has been withdrawn.

OBS

Measurements include electrical properties ... sonic properties, active and passive nuclear measurements, dimensional measurements of the wellbore, formation fluid sampling, formation pressure measurement, wireline-conveyed sidewall coring tools, and others. In wireline measurements, the logging tool (or sonde) is lowered into the open wellbore on a multiple conductor, contra-helically armored wireline. Once lowered to the bottom of the interval of interest, the measurements are taken on the way out of the wellbore. This is done in an attempt to maintain tension on the cable (which stretches) as constant as possible for depth correlation purposes ... Most wireline measurements are recorded continuously even though the sonde is moving.

French

Domaine(s)
  • Forage des puits de pétrole
DEF

Mesure des propriétés physiques des couches géologiques traversées dans le puits à l'aide d'un câble transmettant l'information à un appareil enregistreur en surface [...]

CONT

Afin d'assurer une bonne évaluation d'un puits, l'exploitant prend un nombre suffisant de diagraphies au câble pour [...] évaluer correctement toutes les parties non tubées du puits [...] permettre un calcul précis de la porosité, de la saturation et des niveaux de contact entre fluides de tous les réservoirs potentiels [...] déterminer le diamètre du trou ainsi que le potentiel spontané et la radioactivité naturelle de toute formation [...] aider à déterminer la lithologie de toute formation [...] permettre de calculer avec précision l'angle vertical et la direction du trou et le pendage des formations [...]

Spanish

Save record 1

Record 2 2002-02-11

English

Subject field(s)
  • Research and Development (Petroleum Tech.)
DEF

Companies that "map" the interiors of oil wells.

CONT

... many wireline logging companies used density tools to determine fluid density in productive wellbores.

French

Domaine(s)
  • Recherche et développement (Technol. pétrol.)
OBS

Les mesures en cours de forage, diagraphies différées, opérations auxiliaires, diagraphies de production sont généralement exécutées en Occident par des sociétés de services qui viennent sur les puits avec leur matériel et leur personnel. Le travail est réalisé dans le cadre d'un contrat qui prévoit un paiement pour les services rendus. Les principales sociétés de disgraphies en cours de forage sont (1) : Baroid, Corelab, Exlog [...]

OBS

wireline logging : diagraphie au câble.

Spanish

Save record 2

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