Control of particulate flowback in subterranean wells

Details Control of particulate flowback in subterranean wells Control of particulate flowback in subterranean wells

E - Fixed Constructions

21

B

E21B 43/267 (2006.01) C09K 8/575 (2006.01) C09K 8/62 (2006.01) C09K 8/80 (2006.01)

Patent

CA 2217636

The present invention provides a method of treating a subterranean formation with a particulate laden fluid whereby particulate flowback is reduced or prevented. The method includes the steps of providing a fluid suspension including a mixture of a particulate upon which at least a partial coating of a tackifying compound is formed as a result of admixture of the tackifying compound therewith, pumping the suspension into a subterranean formation and depositing the mixture within the formation whereby the tackifying compound retards movement of at least a portion of the particulate within the formation upon flow of fluids from the subterranean formation.

La présente invention a trait à une méthode de traitement d'une formation souterraine à l'aide d'un fluide chargé de particules grâce à laquelle le retour des particules est diminué ou éliminé. La méthode consiste à fournir une suspension de fluides comprenant un mélange de particules sur lesquelles au moins un revêtement partiel d'un agent d'adhésivité est constitué par suite du mélange de cet agent avec les particules, à pomper la suspension dans une formation souterraine et à placer le mélange à l'intérieur de la formation afin que l'agent d'adhésivité retarde le déplacement d'au moins une partie des particules dans la formation lors de l'écoulement des fluides à partir de la formation souterraine.

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