FIELD: mining.
SUBSTANCE: tool includes drill collar, at least one chamber of sampler, at least one flow line and at least one cover. Drill collar is connected to drill column of sampling tool during drilling process. Drill collar has at least one groove passing along its outer surface and inward its cavity. Drill collar has channel for passage of drill fluid through it. Sampler chamber is located in cavity of drill collar. Flow line in drill collar is connected to sampler chamber in order to transfer well fluid to it. Cover is located at least around one groove of drill collar, by means of which sampler chamber is retained there in removable manner.
EFFECT: random access to sampler chambers, insulation against bumps, vibrations, cyclic deformations or other well stresses, protection of sealing mechanism of sampler chamber.
14 cl, 8 dwg
