Knight Information Systems, LLC Patent applications |
Patent application number | Title | Published |
20160130900 | EXPANDABLE SECTION MILL AND METHOD - An expandable section mill includes a body, a piston movably disposed within an inner cavity of the body, the piston including a wedge surface, a jaw member pivotally connected to a lower end of the body, and a blade assembly affixed to a tapered surface of the jaw member. The jaw member includes an internal channel system for fluid flow through the jaw member to one or more outlets on the jaw member. The jaw member includes a pivot surface. The wedge surface of the piston engages the pivot surface of the jaw member to pivot the jaw member between a retracted position and an extended position. In the retracted position, the blade assembly is positioned radially inward relative to an outer surface of the body. In the extended position, the blade assembly extends radially outward relative to the outer surface of the body. | 05-12-2016 |
20160130899 | Expandable Section Mill and Method - An expandable section mill includes a body having an outer surface and an inner cavity, a piston disposed within the inner cavity, a jaw member pivotally connected to a lower end of the body, and a blade assembly affixed to a tapered surface of the jaw member. The tapered surface of the jaw member includes a wear surface below the blade assembly. The jaw member includes an internal channel system for fluid flow through the jaw member to one or more outlets on the jaw member. The piston is moveable within the inner cavity for pivoting the jaw member between a retracted position and an extended position. In the retracted position, the blade assembly is positioned radially inward relative to the outer surface of the body. In the extended position, the blade assembly extends radially outward relative to the outer surface of the body. | 05-12-2016 |
20140190688 | Multi-Window Lateral Well Locator/Reentry Apparatus and Method - An apparatus and method for locating multiple windows in a wellbore. The windows are associated with lateral wells. The apparatus may include: a running tool connected to a work string, wherein the running tool contains an inner bore being located at a distal end of the running tool; a swing arm having a locating head, the swing arm being pivotally attached within an inner cavity in the running tool, wherein the locating head has a retracted position within the running tool and an extended position extending from the running tool, and wherein the locating head has a shearing surface at an aft end; a biasing member disposed within the inner bore, the biasing member configured to create a force in the direction of the locating head; a shearing rod operatively positioned within the inner bore and engaging a first end of the biasing member so that the shearing rod extends from the inner bore in the direction out of the inner bore towards the locating head, wherein the shearing rod contains a series of individual grooves; and wherein the shearing surface is configured to engage and shear the individual grooves of the shearing rod at a predetermined force in multiple, individual cycles. | 07-10-2014 |
20140182847 | Wellhead Sealing System and Method - A system for sealing a wellhead. The system includes a setting frame, a driver cylinder selectively applying an axial motion, an adaptor attached to the wellhead, and a power mandrel operatively attached to the driver cylinder. The system may also include a setting sleeve attached to the power mandrel, with the setting sleeve having a packer element, wherein the setting sleeve is responsive to a pressure applicator and retractor device so that the packer element is expanded within the master valve. A method of isolating a wellbore is also disclosed. | 07-03-2014 |
20100252275 | Lateral Well Locator and Reentry Apparatus and Method - A down-hole assembly used to locate an existing window in a main cased well bore and guide equipment through the window and into a lateral well bore after removal of a whip stock. The assembly includes a running tool with a convex section detachably connected to a concave section of a guide member. The running tool includes a window locator that locates the window. The guide member includes an inclined or wedge shaped portion for guiding tools or equipment through the window and into the lateral well bore so that remedial work can be carried out. | 10-07-2010 |