A gas lift method with surfactant injection

E - Fixed Constructions – 21 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

E21B 43/12 (2006.01) C09K 8/584 (2006.01) C09K 8/594 (2006.01) E21B 43/22 (2006.01)

Patent

CA 2446628

Disclosed is a method for optimizing gas lift operations in the production of crude oil. A surfactant is injected with the lift gas into the an oil well such that the surface tension between the lift gas and the formation fluid being produced is reduced and/or a lift gas-formation fluid foam is formed. The reduction in surface tension and/or foam formation increases the efficiency of the lift gas for lifting the formation fluid to the surface. The surfactant is selected to minimize corrosion. Exemplary surfactants include those in the group consisting of ethoxylated alcohols and all salts thereof, ethoxylated alkyl phenols and all salts thereof, ethoxylated amines and all salts thereof, alkyl ether sulfates and all salts thereof, all betaines and all salts thereof, all sultaines and all salts thereof, perfluorinated polyurethanes, and mixtures thereof.

La présente invention concerne un procédé permettant d'optimiser des opérations d'extraction par éjection dans la production de pétrole brut. On injecte un agent de surface avec le gaz d'éjection dans un puits de pétrole de sorte que la tension de surface entre la gaz d'éjection et la formation de fluide produite soit réduite et/ou qu'une mousse fluide de formation d'éjection se forme. La réduction de tension de surface et/ou la formation de mousse augmente l'efficacité du gaz d'éjection pour éjecter le fluide de formation à la surface. L'agent de surface est sélectionné de façon à minimiser la corrosion. Des agents de surface de l'invention sont sélectionnés dans le groupe constitué d'alcools éthoxylés, de phénols alkyle éthoxylés, d'amines éthoxylés, de sulfates éther alkyle, de toutes les bétaïnes et de tous les sels de ceux-ci, de toutes les sultaïnes et de tous les sels de celles-ci, de polyuréthannes perfluorinés et de mélanges de ces éléments.

LandOfFree

Say what you really think

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

Rating

A gas lift method with surfactant injection does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with A gas lift method with surfactant injection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A gas lift method with surfactant injection will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1538238

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