公开(公告)号：US09982501B2

公开(公告)日：2018-05-29

申请号：US14888087

申请日：2014-04-25

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Goran Back ,  Kenneth Reid

IPC: E21B31/18 ,  E21B25/02

CPC classification number: E21B31/18 ,  E21B25/02

Abstract: A lockable overshot assembly for use in a wireline spearhead system for lowering and retrieving inner tube assemblies and other tools and equipment from a downhole location includes a pair of lifting dogs pivotally mounted to an overshot head on the lockable overshot assembly and configured for latching a spearhead. A locking arrangement is mounted into the elongated body and engagable within the lifting dogs, such that in a locked state the lifting dogs are in latched position and in an unlocked state, allows the lifting dogs to move to the release position. The locking arrangement is a pin, which can be moved laterally to be between the latching dogs to prevent them moving to the release position.

公开(公告)号：US20160017672A1

公开(公告)日：2016-01-21

申请号：US14771801

申请日：2014-02-11

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Goran Back

IPC: E21B17/046 ,  E21B25/02

CPC classification number: E21B17/046 ,  E21B23/006 ,  E21B25/02

Abstract: An overshot tool for releasable connection to a head assembly as part of a core barrel drilling apparatus. The overshot tool comprises a primary engaging portion and a secondary engaging portion and is configured for the automated coupling and de-coupling to a head assembly via selected engagement of the head assembly by the engaging portion. The overshot tool is configured to both deliver and retrieve a head assembly from a latched position at a cutting end the core barrel.

Abstract translation: 一种用于可拆卸地连接到头部组件作为芯部钻孔装置的一部分的超速工具。 所述俯视工具包括主接合部分和次接合部分，并且被构造用于通过所述接合部分经由所述头部组件的选定接合来自动地联接和去耦合到头部组件。 过冲工具被配置为从切割端的芯筒处的锁定位置输送和拾取头部组件。

公开(公告)号：US10047572B2

公开(公告)日：2018-08-14

申请号：US14771801

申请日：2014-02-11

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Goran Back

IPC: E21B17/046 ,  E21B23/00 ,  E21B25/02

Abstract: An overshot tool for releasable connection to a head assembly as part of a core barrel drilling apparatus. The overshot tool comprises a primary engaging portion and a secondary engaging portion and is configured for the automated coupling and de-coupling to a head assembly via selected engagement of the head assembly by the engaging portion. The overshot tool is configured to both deliver and retrieve a head assembly from a latched position at a cutting end the core barrel.

公开(公告)号：US10000982B2

公开(公告)日：2018-06-19

申请号：US14771796

申请日：2014-02-11

Applicant: SANDVIK INTELLECTUAL PROPERTY AB

Inventor： Goran Back

IPC: E21B21/10 ,  E21B25/02 ,  E21B47/09 ,  E21B23/00 ,  E21B34/10

CPC classification number: E21B21/103 ,  E21B21/10 ,  E21B23/00 ,  E21B23/006 ,  E21B25/02 ,  E21B34/10 ,  E21B47/091

Abstract: An inner tube assembly releasably latchable with a core barrel of a core drilling apparatus. The inner tube assembly includes a valve housing having a fluid flow port and a position guide to control a position of the valve body within the valve housing to open and close the port in response to a fluid pressure acting on the valve body.