Template and process for drillng and completing multiple wells

Details Template and process for drillng and completing multiple wells Template and process for drillng and completing multiple wells

E - Fixed Constructions

21

B

E21B 7/08 (2006.01) E21B 7/04 (2006.01) E21B 7/06 (2006.01) E21B 33/047 (2006.01) E21B 43/017 (2006.01) E21B 43/30 (2006.01)

Patent

CA 2129835

A template and process for drilling and completing multiple wells in a subterranean formation. A template having a plurality of axially extending, divergent bores therethrough is secured to surface or intermediate casing and a like plurality of subterranean wells are drilled through the bores and into the subterranean formation. Each well is separatly cased to the well head at the surface and separate production tubing is inserted into each well. Thus, remedial operations can be carried out in one well or fluid injected into a subterranean formation via one well while fluid, such as hydrocarbons, are simultaneously produced from a subterranean formation via the other well(s).

Plaque de base et procédé pour le forage et l'aménagement multipuits dans une formation souterraine. La plaque traversée par plusieurs trous répartis autour de son axe est fixée à un tubage de surface ou à un tubage intermédiaire; plusieurs puits sont ensuite forés à travers les trous jusque dans la formation souterraine. Chaque puits est tubé séparément à la tête de puits en surface, et un tubage de production séparé est inséré dans chaque puits. On peut ainsi procéder à certaines interventions via l'un des puits, ou injecter un fluide dans une formation souterraine par un puits, pendant que l'on extrait simultanément des hydrocarbures de cette même formation par un autre ou d'autres puits.

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