Apparatus and method for controlling well fluid sample pressure

E - Fixed Constructions – 21 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

E21B 49/08 (2006.01) E21B 49/10 (2006.01)

Patent

CA 2401375

An apparatus and method for maintaining the pressure of a well fluid sample as the sample is transported to the well surface from a downhole wellbore location. The invention collects a formation fluid sample under pressure. The fluid sample is further pressurized with a traveling piston powered by the hydrostatic wellbore pressure. The pressurized formation fluid sample is contained under high pressure within a fixed volume chamber for retrieval to the well surface. Multiple collection tanks can be lowered into the wellbore during the same run to sample different zones with minimal rig time. The tanks can be emptied at the well surface with an evacuation pressure so that the fluid sample pressure is maintained above a selected pressure at all times.

L'invention concerne un dispositif et un procédé permettant de maintenir la pression d'un échantillon de fluide de puits lorsque cet échantillon est acheminé vers la surface du puits, depuis un point de puits de forage. On recueille un échantillon de fluide de formation sous pression, lequel est ensuite soumis à une pression accrue au moyen d'un piston mobile entraîné par la pression hydrostatique du puits de forage. L'échantillon de fluide de formation sous pression est contenu sous haute pression dans une chambre de volume fixe en vue de sa récupération à la surface du puits. Moyennant un temps de montage minime, on peut descendre dans le puits une pluralité de réservoirs de collecte, et ce en une seule fois et vers différentes zones d'échantillonnage. Les réservoirs peuvent être vidés à la surface du puits sous l'effet d'une pression d'évacuation permettant de maintenir, en permanence, la pression d'échantillon de fluide au-dessus d'une pression déterminée.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Apparatus and method for controlling well fluid sample pressure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for controlling well fluid sample pressure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for controlling well fluid sample pressure will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1682619

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.