Well completion method

Details Well completion method Well completion method

E - Fixed Constructions

21

B

166/17

E21B 43/10 (2006.01)

Patent

CA 1208537

ABSTRACT OF THE DISCLOSURE Disclosed is a method for reducing or preventing migration of a formation fluid from a first earthen formation to a second earthen formation each of which is intersected by a drilled bore hole. The method includes running an inflatable packer in a string of casing into the bore hole, the packer including a mandrel with an elastic sleeve thereabout and a valve for permitting the flow from the interior of the mandrel into the interior of the sleeve to expand the sleeve against the formation. The method further includes the steps of determining each of the pore pressure of the formation, the radial shrinkage of the cement within the sleeve, and the maximum pressure which can be exerted by the sleeve on the formation without fracturing same. The method-further includes the step of pumping cement down through the casing and mandrel and into the sleeve at a pressure less than the maximum pressure that can be exerted on the sleeve without fracturing the same, but sufficient to resiliently strain the mandrel, sleeve, and formation in an amount sufficiently greater than the shrinkage of the cement during setting to provide a pressure of the sleeve against the formation, after the cement has set, greater than the pore pressure of the formation.

446000

Affiliated with

Also associated with

Rating

Well completion method does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1241622