Drilling and completion tools---In-oil self-expanding external casing packer

➣ The in-oil self-expanding packer system is the packer based on the principle that rubber will be inflated in case of oil.;➣ Annular space can be closed after absorbing-cased expansion, and can be applied in open hole or casing well.;➣ It can isolate different producing formations effectively. It is not provided with moving components, requires no downhole or ground activities.;➣ The system is usually used in several completion programs, e.g. multilateral wells, horizontal well completion, intelligent completion, screen completion, and production/augmented injection.

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