Method and Apparatus for Secondary Recovery Operations in Hydrocarbon Formations

摘要

A production casing string including a plurality of propellant sleeves positioned on an exterior of the production casing string, and each propellant sleeve includes a firing mechanism and a firing sleeve for selectively covering and uncovering the firing mechanism. The casing string also includes an identifiable marker associated with each propellant sleeve and at least one selective bi-directional valve assembly associated with each propellant sleeve.

主权项

1. A method of managing a hydrocarbon producing formation having a primary wellbore including at least one deviated branch wellbore, the method comprising the steps of:
a. positioning a production casing string in the deviated branch wellbore, the production casing string including: i. a plurality of propellant sleeves positioned on the exterior of the production string; ii. an identifiable marker associated with each propellant sleeve; iii. at least one discharge-only valve and at least one intake-only valve associated with each propellant sleeve; b. cementing the production casing string within the deviated branch wellbore; c. positioning a tool within the production casing string where the tool locates on the identifiable marker associated with one of the propellant sleeves; d. selectively igniting propellant in the propellant sleeve of step (c); and e. opening at least one of the discharge-only valve or intake-only valve associated with the propellant sleeve in step (c).