Diverting compositions, fluid loss control pills, and...

Details Diverting compositions, fluid loss control pills, and... Diverting compositions, fluid loss control pills, and...

C - Chemistry, Metallurgy

09

K

C09K 8/487 (2006.01) C09K 8/035 (2006.01) E21B 43/25 (2006.01)

Patent

CA 2643835

A method of treating a well that includes selectively emplacing a fluid loss pill into the well, wherein the fluid loss pill includes at least one of diethylene glycol, triethylene glycol, and tetraethylene glycol, and wherein the at least one of diethylene glycol, triethylene glycol, and tetraethylene glycol reacts with a calcium brine present in the well to form a plug is disclosed.

La présente invention concerne un procédé de traitement d'un puits comprenant le placement sélectif de pilules de perte de fluide dans le puits, ladite pilule de perte de fluide comportant au moins parmi le diéthylène glycol, le triéthylène glycol, le tétraéthylène glycol, et ledit au moins parmi le diéthylène glycol, le triéthylène glycol, le tétraéthylène glycol réagissant avec une saumure de calcium présente dans le puits pour former un bouchon.

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