Class / Patent application number | Description | Number of patent applications / Date published |
166185000 | With central conduit and fluid port to space outside | 6 |
20090008083 | METHOD AND APPARATUS FOR WELLBORE FLUID TREATMENT - A tubing string assembly for fluid treatment of a wellbore includes substantially pressure holding closures spaced along the tubing string, which each close at least one port through the tubing string wall. The closures are openable by a sleeve drivable through the tubing string inner bore. | 01-08-2009 |
20090107665 | Methods and Apparatus for Injecting Fluids at a Subterranean Location in a Well - Disclosed are retrievable through-tubing tools and methods for use in wellbores to inject fluids at subterranean locations wherein the tool have spaced foamed seal elements that are retracted during installation and expand when in use. | 04-30-2009 |
20100276137 | Swellable Downhole Apparatus and Support Assembly - A downhole apparatus and support assembly is described. The downhole apparatus has a radially expanding portion comprising a swellable elastomeric material selected to increase in volume on exposure to at least one predetermined fluid, and the support assembly is operable to be deployed from a first retracted position to a second expanded condition. The support assembly comprises an inner surface arranged to face the radially expanding portion, and at least a portion of the inner surface is concave. In another aspect the support assembly is configured to direct a force from the swellable material to boost or energize a seal created between the radially expanding portion and a surrounding surface in use. | 11-04-2010 |
20110240284 | Tubular Embedded Nozzle Assembly for Controlling the Flow Rate of Fluids Downhole - An apparatus ( | 10-06-2011 |
20160069152 | GAS LIFT MANDREL AND ISOLATOR - An isolation tool is presented for use in fluidly isolating first and second sections of tubing and more typically to a bleed valve/port of a gas lift mandrel. The isolation tool is configured for disposition within an interior of a gas lift mandrel. The isolation tool includes one or more resilient elements that may be compressed to expand to and seal against an inside surface of the tubing/mandrel. Such expansion and sealing by the resilient element(s) fluidly isolates sections of the tubing/mandrel. The isolation tool may be removed through the tubing when desired by releasing the compression of the resilient element(s) such that the resilient element(s) disengage the inside surface of the tubing/mandrel. | 03-10-2016 |
166186000 | Port between sealing portions and bypass around | 1 |
20090301708 | Parallel fracturing system for wellbores - Downhole fracturing tools comprise upper and lower isolation devices and a housing disposed in between. The housing comprises a housing bore that is divided into two chambers isolated from each other within the housing bore. The upper bore is in fluid communication with a fluid injection line through which a fracturing fluid is pumped into the upper bore. The fracturing fluid flows down the upper bore, substantially parallel to a longitudinal length of the tool, and exits the tool through at least one port. The fracturing fluid then travels down the wellbore annulus. Returns from the fracturing fluid flow through a screen in the tool and up a return line that empties into the wellbore annulus above the upper isolation device. | 12-10-2009 |