Method and apparatus for stimulating hydrocarbon wells

Details Method and apparatus for stimulating hydrocarbon wells Method and apparatus for stimulating hydrocarbon wells

E - Fixed Constructions

21

B

E21B 34/10 (2006.01) E21B 43/25 (2006.01)

Patent

CA 2528130

One or more flapper valve assemblies are placed in a casing string extending through one or more hydrocarbon bearing intervals. The flapper valve assemblies are placed between some of the hydrocarbon bearing intervals. In an open or inoperative position, the flapper valve assemblies are full opening compared to the casing string. The hydrocarbon bearing intervals are stimulated, typically by fracing, starting with the bottom zone. The flapper valve assembly immediately above the stimulated interval is manipulated to allow it to close, preventing downward flow in the well and thereby isolating the lower stimulated interval so an upper interval can be stimulated. The well is easy to put on production because the flapper valves will normally open simply by opening the well at the surface.

Un ou plusieurs clapets à battant sont disposés dans une colonne de tubage se prolongeant dans un ou plusieurs intervalles d'une formation pétrolière. Les clapets à battant sont placés entre certains des intervalles de la formation pétrolière. En position ouverte ou inopérante, les clapets à battant sont ouverts au maximum comparativement à la colonne de tubage. Les intervalles de la formation pétrolière sont stimulés, normalement par fracturation hydraulique, à partir de la zone du fond. Les clapets à battant juste au-dessus de l'intervalle stimulé est commandé pour se fermer, empêchant l'écoulement vers le fonds du puits et isolant ainsi l'intervalle stimulé inférieur de sorte qu'un intervalle supérieur puisse être stimulé. Il est facile de mettre le puits en production car les clapets à battant s'ouvriront normalement par simple ouverture du puits à la surface.

Affiliated with

Also associated with

Rating

Method and apparatus for stimulating hydrocarbon wells 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 and apparatus for stimulating hydrocarbon wells, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for stimulating hydrocarbon wells will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1984087