| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 166142000 | With controllable passage between central chamber and space below packer | 8 |
| 20080217001 | Flow control device for choking inflowing fluids in a well - A flow arrangement ( | 09-11-2008 |
| 20090095467 | BYPASS GAS LIFT SYSTEM AND METHOD FOR PRODUCING A WELL - The present invention is about the completion system for delivering lifting gas supplied from surface via a casing annulus thru the packer for injecting to the wellbore at bottom hole as lifting gas for maximizing hydrocarbon producing from a subterranean well while maintaining integrity and serviceability as a typical gas lift well. | 04-16-2009 |
| 20100032153 | BYPASS GAS LIFT SYSTEM AND METHOD FOR PRODUCING A WELL - A completion system delivers lifting gas supplied from the surface via a casing annulus through the packer for injecting to the wellbore at bottom hole. So, lifting gas maximizes hydrocarbon producing from a subterranean well while maintaining integrity and serviceability as a typical gas lift well. More specifically, a single completion system uses the same tubing string for both producing the well and delivering lifting gas to the wellbore at downhole. The top section of the tubing is used for producing the well, while the bottom section of the tubing is used for delivering lifting gas for injecting at bottom hole. The lifting gas will be injected to the wellbore proximately at perforation intervals for helping unloading liquid and producing the well. The use of modified equipment named “TK Bypass Mandrel” and “JP Bypass Nipple Sub” allows delivering and controlling of the lifting gas for injecting at bottom hole via a single tubing string. | 02-11-2010 |
| 20130025850 | METHOD OF DRILLING AND RUNNING CASING IN LARGE DIAMETER WELLBORE - A well is drilled and casing installed utilizing a casing drilling technique. A bottom hole assembly having a drill bit and a fluid diverter is secured to a string of drill pipe and installed within a casing string. Drilling fluid is pumped down the drill pipe string to cause the drill bit to rotate and drill the well while the fluid diverter is in a drilling mode position. At the total depth for the casing string, the operator moves the fluid diverter to a cementing position and pumps cement down the drill pipe and up the casing string annulus. After cementing, the operator moves the fluid diverter to a packer set position and again pumps drilling fluid down the drill string to set the packer. | 01-31-2013 |
| 20130043020 | METHOD OF DRILLING AND RUNNING CASING IN LARGE DIAMETER WELLBORE - A well is drilled and casing installed utilizing a casing drilling technique. A bottom hole assembly having a drill bit and a fluid diverter is secured to a string of drill pipe and installed within a casing string. Drilling fluid is pumped down the drill pipe string to cause the drill bit to rotate and drill the well while the fluid diverter is in a drilling mode position, At the total depth for the casing string, the operator moves the fluid diverter to a cementing position and pumps cement down the drill pipe and up the casing string annulus. After cementing, the operator moves the fluid diverter to a packer set position and again pumps drilling fluid down the drill string to set the packer. | 02-21-2013 |
| 166147000 | Passage connects with space between packer or plug seals | 2 |
| 20090020283 | 2D Well Testing with Smart Plug Sensor - An apparatus for characterising the permeability of a formation surrounding a wellbore, comprising:
| 01-22-2009 |
| 20110315372 | FLUID SAMPLING TOOL - The present disclosure relates to one or more an apparatuses including a downhole tool configured for conveyance in a wellbore extending into a subterranean formation. The downhole tool may include a first unit having a first fluid port configured to provide fluid communication between the first unit and the wellbore, a second unit having a second fluid port configured to provide fluid communication between the second unit and the wellbore, a connector configured to connect a first connecting end of the first unit with a second connecting end of the second unit, such that the connector does not include packer elements, a first packer element mounted on the first unit and not located between the first fluid port and the first connecting end, and a second packer element mounted on the second unit and not located between the second fluid port and the second connecting end. | 12-29-2011 |
| 166149000 | With passageway between central chamber and space above packer | 1 |
| 166151000 | Passageway valve directly responsive to fluid pressure | 1 |
| 20100051260 | Fluid Isolating Pressure Equalization in Subterranean Well Tools - A fluid isolating pressure equalization in a subterranean well. A well system includes a well tool including a chamber therein containing an electrical assembly in a dielectric fluid, and a pressure equalization apparatus including a flowpath having opposite ends. One end is connected to the chamber, and the other end is connected to a source of another fluid. The flowpath extends alternately upward and downward between the opposite ends. A pressure equalization apparatus for use with a well tool in a subterranean well includes multiple spiral wraps of a tube. A flowpath in the tube extends in opposite directions in respective successive wraps of the tube. | 03-04-2010 |
