Method for multi-lateral completion and cementing the...

Details Method for multi-lateral completion and cementing the... Method for multi-lateral completion and cementing the...

E - Fixed Constructions

21

B

E21B 33/13 (2006.01) E21B 33/16 (2006.01) E21B 41/00 (2006.01) E21B 43/10 (2006.01)

Patent

CA 2158291

The present invention relates to two improved methods for multilateral completion and cementing (e. g. sealing) the juncture between primary and lateral wellbores. These two completion methods of the present invention address the issue of cementation of the lateral wellbores for the purpose of zonal isolation. It is desirable to have the ability to re-enter each lateral wellbore as well as maintain the option to perform any function that could be done in a single wellbore. For this reason, cemented lateral wellbores are desirable so that normal isolation, stimulation or any other operation can be achieved. The methods allow sealing and reworking of either wellbores with single laterals or multiple laterals and provide safe durable junctions therebetween.

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