E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/5
E21B 49/08 (2006.01) E21B 43/08 (2006.01) G01N 1/14 (2006.01)
Patent
CA 2033173
ABSTRACT A method and device is used for producing uncontaminated water samples when drilling a well, using a hollow bar for transporting drilling fluid whose conduits consists of nonperforated tubes and at least one perforated tube; the water sample is pumped through filter sand from a water-conducting horizontal, approached by the boring bar, via a perforated conduit positioned in the latter after the filter sand is deposited between the perforated conduit, the adjacent nonperforated conduit and the bore wall and incorporated into the system as a filter; according to the invention, the bore up to the first water-conducting horizontal is drilled with the closed perforated conduit and the first water sample obtained; after closing the perforations, drilling is continued and the filter sand removed until the next water-conducting horizontal is reached, from which a second water sample is taken after reopening the perforations.
Fetherstonhaugh & Co.
Terratronic Vertrieb von Zielbohrsystemen Gmbh
LandOfFree
Process and device for obtaining unadulterated samples of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process and device for obtaining unadulterated samples of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and device for obtaining unadulterated samples of... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1448744