| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 166910100 | With flow restrictions (e.g., chokes or beans) | 7 |
| 20100206546 | Apparatus and Method for Recovering Fluids From a Well and/or Injecting Fluids Into a Well - Methods and apparatus for diverting fluids either into or from a well are described. Some embodiments include a diverter conduit that is located in a bore of a tree. The invention relates especially but not exclusively to a diverter assembly connected to a wing branch of a tree. Some embodiments allow diversion of fluids out of a tree to a subsea processing apparatus followed by the return of at least some of these fluids to the tree for recovery. Alternative embodiments provide only one flowpath and do not include the return of any fluids to the tree. Some embodiments can be retrofitted to existing trees, which can allow the performance of a new function without having to replacing the tree. Multiple diverter assembly embodiments are also described. | 08-19-2010 |
| 20100206547 | Apparatus and Method for Recovering Fluids From a Well and/or Injecting Fluids Into a Well - Methods and apparatus for diverting fluids either into or from a well are described. Some embodiments include a diverter conduit that is located in a bore of a tree. The invention relates especially but not exclusively to a diverter assembly connected to a wing branch of a tree. Some embodiments allow diversion of fluids out of a tree to a subsea processing apparatus followed by the return of at least some of these fluids to the tree for recovery. Alternative embodiments provide only one flowpath and do not include the return of any fluids to the tree. Some embodiments can be retrofitted to existing trees, which can allow the performance of a new function without having to replacing the tree. Multiple diverter assembly embodiments are also described. | 08-19-2010 |
| 20120175103 | Apparatus and Method for Recovering Fluids From a Well and/or Injecting Fluids Into a Well - Methods and apparatus for diverting fluids either into or from a well are described. Some embodiments include a diverter conduit that is located in a bore of a tree. The invention relates especially but not exclusively to a diverter assembly connected to a wing branch of a tree. Some embodiments allow diversion of fluids out of a tree to a subsea processing apparatus followed by the return of at least some of these fluids to the tree for recovery. Alternative embodiments provide only one flowpath and do not include the return of any fluids to the tree. Some embodiments can be retro-fitted to existing trees, which can allow the performance of a new function without having to replacing the tree. Multiple diverter assembly embodiments are also described. | 07-12-2012 |
| 20130168079 | CONSTRUCTION ARTICLES AND METHODS OF FORMING SAME - A pipe choke for use in drilling and mining operations comprising a body including a first end and a second end configured to couple to a pipe, an opening extending through the body from the first end to the second end, and wherein the body includes a first phase comprising recrystallized silicon carbide and a second phase comprising silicon. | 07-04-2013 |
| 20150122482 | Annular Blowout Container (ABOC) - An annular blowout container (ABOC) that may be used in multiples in a stack in conjunction with additional gate and shear valves to protect a wellhead. The ABOC incorporates a cylindrical formed bladder that provides a tight constrictive seal around whatever pipe or tubing may be in the well bore. The bladder is made of top and bottom rotator plates with springs extending between the plates. The springs are encased in Teflon® and held in place by Kevlar® then covered over completely with cured Viton® that is injected to complete the overall bladder in a molded form. Rotation of the top and bottom rotator plates effects a twisting constriction around the drill pipe or tubing. Electrical and hydraulic operational components are housed inside chambers within the ABOC for predominantly self-contained operation. The cylindrical bladder assembly may be removed and replaced after extended use. | 05-07-2015 |
| 20150345251 | MECHANICAL SHAFT COUPLING FOR FLUID SYSTEM CONNECTIONS - A fluid control system includes a choke valve having a first connector shaft an actuator haying a second connector shaft; a collar disposed around the first and second connector shafts; and a spring disposed on the first connector shaft. The collar may have an internal taper and a plurality of engagement pins. | 12-03-2015 |
| 20160108699 | SYSTEM FOR CONTROLLING FLUID FLOW - A system includes a choke valve having a fluid inlet configured to receive a fluid at a first pressure and a fluid outlet configured to output the fluid at a second pressure. The choke valve also includes a fixed component and a movable component defining a throttling orifice between the fluid inlet and the fluid outlet. Additionally, the movable component is configured to automatically move relative to the fixed component in response to a change in the first pressure to maintain a consistent percent pressure drop between the first pressure at the fluid inlet and the second pressure at the fluid outlet. | 04-21-2016 |
