Well operating elements comprising a soluble component and...

E - Fixed Constructions – 21 – B

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E21B 43/25 (2006.01)

Patent

CA 2546089

Well operating elements are described, one embodiment comprising a first component that is substantially non-dissolvable when exposed to a selected wellbore environment and a second component that is soluble in the selected wellbore environment and whose rate and/or location of dissolution is at least partially controlled by structure of the first component. A second embodiment includes the component that is soluble in the selected wellbore environment, and one or more exposure holes or passages in the soluble component to control its solubility. The second embodiment may or may not include a substantially non-dissolvable component. Methods of using the well operating elements in oilfield operations are also described. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

La présente description porte sur des composants de puits de forage. Une certaine configuration fait intervenir un premier composant, qui est quasiment non soluble lorsqu'il est exposé à un certain environnement de puits de forage, et un second composant, qui est soluble dans l'environnement de puits de forage retenu et dont la vitesse et/ou l'emplacement de dissolution est au moins partiellement contrôlé par la structure du premier composant. Une deuxième configuration concerne l'utilisation du composant qui est soluble dans l'environnement de puits de forage retenu, ainsi qu'un ou plusieurs passages ou trous d'exposition dans le composant soluble dans le but de contrôler sa solubilité. La deuxième configuration peut éventuellement concerner un composant quasiment non soluble. La description concerne également les méthodes d'utilisation des composants de puits de forage dans des opérations d'infrastructures pétrolières. Ce résumé permet au chercheur ou au lecteur de cerner rapidement le sujet de la divulgation. Il ne sera pas utilisé pour interpréter ou limiter la portée ou le sens des revendications (37 CFR 1.72(b)).

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