Invention Grant
- Patent Title: Casing patch overshot
- Patent Title (中): 套管贴片超
-
Application No.: US11127569Application Date: 2005-05-12
-
Publication No.: US07422068B2Publication Date: 2008-09-09
- Inventor: Gerald D. Lynde
- Applicant: Gerald D. Lynde
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agent Steve Rosenblatt
- Main IPC: E21B43/10
- IPC: E21B43/10 ; E21B29/10

Abstract:
A connection to a stub downhole is accomplished in a variety of ways. A string has a tapered lower end inserted into the stub and expansion occurs from within the tapered lower end into the stub to leave a connection without reduction of the internal diameter. An overshot fitting can be lowered outside the stub and the stub expanded from within against the overshot. Both options in a single tool can be used to get sealing around the inside and the outside of the stub. An adjustable swage can be used with the overshot configuration where the overshot has an internal groove. The adjustable swage expands from within the stub into the surrounding groove in the overshot.
Public/Granted literature
- US20060254779A1 Casing patch overshot Public/Granted day:2006-11-16
Information query
IPC分类: