Catch samples:

The samples are obtained from drilling fluid as it emerges from the wellbore or, in cable-tool drilling, from the bailer.

Cuttings are carefully washed until they are free of foreign matter, dried, and labeled to indicate the depth at which they were obtained.

Terms Related to Catch samples

• Samples

  1. The well cuttings obtained at designated footage intervals during drilling. From an examination of these cuttings, the geologist determines the type of rock and ...

• Show

  The appearance of oil or gas n cuttings, samples, or cores from a drilling well

• Bottoms up

  1. A complete trip from the bottom of the wellbore to the top 2. Pertaining to the mud and cuttings that are calculated or measured ...

• Cuttings

  Small pieces of rock that break away due to the action of the bit teeth. Cuttings are screened out of the liquid mud system at ...

• Sidewall coring

  A coring technique in which core samples are obtained from the hole wall in a zone that has already been drilled. A hollow bullet is ...

• Circulation time

  The elapsed time for mud to circulate from the suction pit, down the wellbore and back to surface. Circulation time allows the mud engineer to catch ...

• Centrifuge

  1. A shake-out or grind-out machine. Samples of oil are placed in the machine and whirled at high speed to settle out sediment. 2. An ...