公开(公告)号：US20130312982A1

公开(公告)日：2013-11-28

申请号：US13481099

申请日：2012-05-25

Applicant: KEVEN O'CONNOR ,  BASIL J. JOSEPH

Inventor： KEVEN O'CONNOR ,  BASIL J. JOSEPH

IPC: E21B23/00

CPC classification number: E21B23/00

Abstract: A release mechanism for use in setting a downhole tool comprises two connectors releasably connected to one other. One of the connectors includes a material having a coefficient of thermal expansion that is different from a material included in the second connector. The difference in the coefficients of thermal expansion causes one of the connectors to expand greater than the other connector when heat is applied to one or both of the connectors. As a result of the greater expansion of one of the connectors, the connectors release from each other. Upon release, an actuator within the downhole tool is permitted to move and cause actuation or setting of the downhole tool.

Abstract translation: 用于设置井下工具的释放机构包括可释放地彼此连接的两个连接件。 一个连接器包括具有与第二连接器中包括的材料不同的热膨胀系数的材料。 当对一个或两个连接器施加热量时，热膨胀系数的差异导致连接器中的一个膨胀比另一个连接器大。 由于连接器之一的更大的膨胀，连接器彼此脱离。 在释放时，井下工具内的致动器被允许移动并引起井下工具的致动或设定。