| 摘要 |
FIELD: oil and gas production. ^ SUBSTANCE: invention refers to system of upper drive with multitude of upper drive quick-release modules. The modules of the upper drive can have one or several following components: a module of the main case, a module of a reducer, a module of a driven motor, a module of a tube manipulator, an upper fluid module, a module of a lower distributing valve of a well, an adapter module, a module of an adapting frame in a withdrawal system, a module of a cooling system, a module of work platform fence and a module of safety device replacement for a replaceable spindle. As an alternative, the upper drive can have the first and the second quick-released upper drives. ^ EFFECT: repair, maintenance, inspection or change of working assembly outside working route which reduces idle time for whole drilling rig. ^ 22 cl, 4 dwg |
