Method for determining a property of a hydrocarbon-bearing...

E - Fixed Constructions – 21 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

E21B 49/00 (2006.01) E21B 21/08 (2006.01) E21B 43/20 (2006.01)

Patent

CA 2385025

Method is disclosed of estimating a property of a hydrocarbon-bearing formation penetrated by at least one injection (A, B, C, D) well through which fluid is injected into the formation and penetrated by at least one production well (E) through which fluid is produced from the formation. The injection rates of fluid through the injection wells are periodically varied and measured at substantially regular time intervals and measurements are also made of the production rate of fluid produced through the production well. A series of production well response delays are selected. A set of correlation coefficients between the injection rate for each injection well and the production rate as a function of response delay are determined. From each set of correlation coefficients, a time lag, corresponding to the maximum correlation coefficient is determined. The time lag is then used to characterize a formation property, such as channel volume, permeability, or transmissibility.

L'invention concerne un procédé permettant d'évaluer une propriété d'une formation contenant des hydrocarbures pénétrée par au moins un puits (A, B, C, D) d'injection à travers lequel un fluide est injecté dans la formation, et par au moins un puits (E) de production à travers lequel le fluide est produit à partir de ladite formation. Les taux d'injection de fluide à travers les puits d'injection sont périodiquement modifiés et mesurés à intervalles sensiblement réguliers. On mesure également le taux de production du fluide produit par l'intermédiaire du puits de production. Des séries de délais de réponses du puits de production sont sélectionnées. On détermine un ensemble de coefficients de corrélation entre le taux d'injection pour chaque puits d'injection et le taux de production ayant une fonction de délais de réponse. Un décalage dans le temps correspondant au coefficient de corrélation maximum est déterminé à partir de chaque ensemble de coefficients de corrélation. Le décalage dans le temps est ensuite utilisé pour caractériser une propriété de la formation, telle que le volume du canal, la perméabilité ou la transmissibilité.

LandOfFree

Say what you really think

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

Rating

Method for determining a property of a hydrocarbon-bearing... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for determining a property of a hydrocarbon-bearing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for determining a property of a hydrocarbon-bearing... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1949770

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