SELF-ORIENTING SELECTIVELY ALIGNED SPLIT BUSH AND METHOD FOR BUSH INSTALLATION IN WELL

摘要

FIELD: oil field development, particularly to deliver different equipment in well bore. ^ SUBSTANCE: split bush comprises at least one leaf to be pressed out and guiding extension connected to the leaf. The bush also has locking profile formed from outer bush side. Method for split bush usage involves arranging at least two guiding profiles with selectively mating aligning profiles in liner; inserting split bush having guiding extension and locking profile corresponding to aligning profile in the liner; orienting split bush by moving guiding extension resting upon guiding profile and bringing thereof into engagement with aligning profile if it mates locking bush profile. ^ EFFECT: increased accuracy of equipment alignment inside well. ^ 26 cl, 7 dwg