TCO AS Patent applications |
Patent application number | Title | Published |
20150218918 | PUNCHER TOOL - A device and a method are for perforating downhole casings. The method includes arranging a device on a drill string, running the device into a bore hole, dropping a ball down through the drill string down to the device for causing a first sequence of pressure rise and relief, causing a firing system to trigger a charge for punching one or more holes through a surrounding casing wall in response to the first sequence of pressure rise and relief, driving the pressure inside of the drill string up to a second level, and causing a rupture disc at the second level to burst so as to establish a fluid communication between the inside and outside of the drill string through the opening in the pipe wall of the pipe section. | 08-06-2015 |
20140182855 | INJECTION DEVICE - An injection device for use in injecting a fluid into a target location comprises a housing and a valve assembly located within the housing. The housing defines an inlet for communicating with an injection line, an outlet for communicating with a target location, and an injection fluid flow path extending between the inlet and outlet. The valve assembly located is configured to control the flow of injection fluid along the flow path and comprises first and second valve members both arranged to move within the housing, wherein in an open configuration to permit flow the first and second members are disengaged, and in a closed configuration to prevent flow the first and second members are engaged and the first valve member is biased against the second member by inlet fluid pressure to assist sealing therebetween. | 07-03-2014 |
20130153044 | APPARATUS FOR FLOW REGULATION - An apparatus for regulating the flow of a fluid from a source to a target location comprises a housing defining a fluid inlet configured to communicate with a fluid source and a fluid outlet configured to communicate with a target location, and a flow path extending between the fluid inlet and fluid outlet. An inlet valve assembly is mounted in the flow path and comprises a valve seat and a valve member configured to cooperate with the valve seat to regulate flow through the flow path. A balance arrangement is provided and is configured to balance the effect of fluid pressure acting on the inlet valve assembly. | 06-20-2013 |
20110000676 | PLUG CONSTRUCTION COMPRISING A HYDRAULIC CRUSHING BODY - A plug element for conducting tests of a well, a pipe or the like, comprising one or more plug bodies of disintegratable/crushable material set up to be ruptured by internally applied effects, is disclosed. The plug element of the invention comprises an internal hollow space set up to fluid communicate with an external pressure providing body, and the plug is designed to be blown apart by the supply of a fluid to the internal hollow space so that the pressure in the hollow space exceeds an external pressure to a level at which the plug is blown apart. | 01-06-2011 |