| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 166371000 | Including non-expulsive material placed in well | 6 |
| 20080202762 | FLUID FILTRATION TOOL - A dual use fluid filtration tool to separate both solids and gas from a fluid. The fluid filtration tool is suspended from and connected to downhole equipment, such as a downhole submersible pump having a motor, which rotates a shaft. The tool includes a housing having a cylindrical wall with a plurality of perforations therethrough and m interior chamber therein. A removable cylindrical filter surrounds the interior chamber of the housing in order to filter solid particles. At least one centralizer bearing within the interior chamber of the housing centralizes the shaft which passes therethrough. The fluid in the interior chamber is radially induced in order to separate gas from fluid. The gas separated from the fluid is directed out of the chamber while the fluid remaining in the interior chamber is directed to the intake of the downhole pump. | 08-28-2008 |
| 20090183882 | PACKER VARIABLE VOLUME EXCLUDER AND SAMPLING METHOD THEREFOR - A down hole apparatus includes a first expandable packer and a second expandable packer, where the first expandable packer longitudinally spaced from the second expandable packer. The apparatus further includes an optional expandable bladder disposed at a longitudinal location between the first expandable packer and the second expandable packer. The expandable bladder inflates to displace drilling fluid between the first and second bladder elements. The down hole apparatus can optionally displace drilling fluid between the first and second bladder elements with another fluid. Fluids and/or slurry can be selectively removed using ports between the first and second expandable packers, and optionally placed in sample chambers, or expelled to the bore hole. | 07-23-2009 |
| 20090242208 | DEAD STRING COMPLETION ASSEMBLY WITH INJECTION SYSTEM AND METHODS - In some embodiments, apparatus useful for providing fluids or equipment into a subterranean well through a production tubing and associated dead string includes an injection system that is movable into and out of the well without removing the production tubing. The injection system includes a stopper that forms the seal that creates the dead string. | 10-01-2009 |
| 20090321082 | Method for Protecting Hydrocarbon Conduits - The invention provides a method of protecting a hydrocarbon conduit during a period of reduced hydrocarbon flow, said method comprising introducing nitrogen into said conduit during a said period at a pressure p of 1 to 350 bar g and at a rate of (1.5 to 35). A kg/sec (where A is the internal cross sectional area of the conduit in square metres) for a period of t hours where t=p.d/n where d is the length in km of the conduit from the nitrogen introduction location and n is 10 to 400. | 12-31-2009 |
| 20120255737 | APPARATUS, SYSTEM, AND METHODS FOR GENERATING A NON-PLUGGING HYDRATE SLURRY - Provided are apparatus, systems, and methods for generating a non-plugging hydrate slurry. The apparatus, systems, and methods for generating a hydrate slurry are useful for transport and/or production of wellstream hydrocarbons in subsea and arctic environments. The present invention provides methods of seeded or unseeded methods of making dry hydrates. Dry hydrates are made with or without the aid of chemicals and, preferably, with minimum use of rotating or other energized equipment. | 10-11-2012 |
| 20140262319 | ENVIRONMENTALLY FRIENDLY PERMANENT QUATERNARIES OF POLYAMINES AND THEIR USE AS CLAY STABILIZERS AND METHODS FOR MAKING AND USING SAME - New classes of temporary and/or permanent clay stabilization compositions including at least one quaternary salt of polyamines or a reaction product of at least one polyamine having an NH moiety with an aldehyde, and to methods for making and using same, where the quaternary salts of polyamines have reduced toxicity. | 09-18-2014 |
