Continuous monobore liquid lining system

Details Continuous monobore liquid lining system Continuous monobore liquid lining system

E - Fixed Constructions

21

B

E21B 33/13 (2006.01)

Patent

CA 2532990

A process for drilling a well or a portion of a well capable of providing a generally constant interior wall diameter (monobore) and does not require installation of any liner or steel casing. The process comprises circulating settable material into the borehole wherein the settable material sets on at least a portion of the interior wall of the borehole to create a liner along the wall of the borehole and removing excess settable material out of the borehole.

L'invention concerne un procédé de forage d'un puits ou d'une partie d'un puits pouvant présenter un diamètre de paroi intérieure (puits simple) généralement constant et ne nécessitant pas d'installation d'une chemise ou d'un cuvelage en acier. Ce procédé consiste à faire circuler un matériau durcissable dans le trou de sonde, ce matériau durcissable durcissant sur au moins une partie de la paroi intérieure du trou de sonde, de sorte qu'une chemise soit créée le long de la paroi du trou de sonde, et à enlever le matériau durcissable du trou de sonde.

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