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Magician Harry Houdini patented a "Diver's Suit" enabling the wearer to "quickly divest himself of the suit while being submerged and to safely escape and reach the surface of the water."
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| Number | Title | Issue Date |
| 7069657 | Method to reduce the width of a slot in a pipe or tube A method for reducing the width of slots spaced about the surface of a pipe or tube. The method comprises subjecting the surface of the pipe or tube to bombardment by a quantity of shot of a pre-determined size and for a pre-determined length of time to cause deform... | 07/04/2006 |
| 6328103 | Methods and apparatus for downhole completion cleanup A method of performing a downhole well completion cleanup is provided. In a described embodiment, completion fluids from a first zone are flowed into a tubular string, and then the fluids are discharged into a second zone. An apparatus usable in the metho... | 12/11/2001 |
| 6311774 | Method and apparatus for securing a well casing to a wellbore A well casing for receiving well fluid from a producing formation includes a first tubular section that has a tortuous outer surface for directing the flow of a bonding agent around the exterior of the first tubular section. The first tubular section has ... | 11/06/2001 |
| 6237688 | Pre-drilled casing apparatus and associated methods for completing a subterranean well A tubular casing section for a subterranean well has side wall apertures therein which are temporally sealed with plug structures. The plugged casing section is positioned within a wellbore at a selected subterranean formation and cemented in place within... | 05/29/2001 |
| 6230802 | Method and apparatus for gravel packing a well An apparatus for use in gravel packing a well includes a tool body adapted to be lowered into the well, a screen coupled to the tool body, and a resilient member coupled to the screen. The apparatus is placed at a selected position in the well, and sand c... | 05/15/2001 |
| 5690173 | Apparatus for enhanced bioremediation of underground contaminants A method and apparatus for achieving in situ bioremediation of dissolved or dispersed organic contaminants in the groundwater phase at a contaminated site. The apparatus of this invention is configured to be used within an injection well of the type emplo... | 11/25/1997 |
| 5560427 | Fracturing and propping a formation using a downhole slurry splitter A method and apparatus for fracturing and propping a fracture interval wherein a workstring is lowered into the wellbore and a fracturing slurry comprised of a fracturing fluid and proppants is flowed down the workstring to a downhole slurry splitter whic... | 10/01/1996 |
| 5394938 | Gravel pack screen for well completions A gravel pack well tool comprised of a workstring having a gravel pack screen thereon wherein the workstring can be rotated without applying any substantial torque to the screen jacket which forms part of the gravel pack screen. This allows the workstring... | 03/07/1995 |
| 5366009 | Gravel pack well completions with auger-liner A gravel pack well tool for use in a gravel pack completion which does not require the circulation of fluids during installation. The gravel is first placed or preset within the completion zone and then the well tool having a auger-liner assembly is lower... | 11/22/1994 |
| 5261486 | Method and apparatus for gravel pack well completions A method and apparatus for installing a gravel pack well completion wherein flow of fluid in the well can be effectively blocked and excessive hydrostatic pressure can be isolated from the top of a pre-placed column of gravel while an auger-liner assembly... | 11/16/1993 |
| 5190108 | Method and apparatus for inhibiting biological fouling of water wells Biological fouling of water wells is inhibited by replacing the air in the well column with an anoxic gas such as nitrogen to deprive aerobic bacteria of oxygen. The anoxic gas is applied from a cylindrical tank at the surface and through a gas pipe exten... | 03/02/1993 |
| 5143606 | Arrangement for cleaning contaminated ground water An arrangement for cleaning contaminated ground water and a ground region through which it flows, comprises a shaft extending to a region of the ground water to be cleaned and having water permeable shaft walls separated from one another by a separating w... | 09/01/1992 |
| 5143607 | Arrangement for driving out volatile impurities from ground water An arrangement for driving out volatile impurities from ground water by air or another gas, has a shaft adapted to extend to a ground water region and having at least locally a water-permeable wall formed as another wall and limiting at least partially an... | 09/01/1992 |
| 5036920 | Gravel pack well completion with auger-screen A method and apparatus for installing a gravel pack completion which does not require the circulation of fluids during installation. The gravel is first placed or preset within the completion zone and then a well completion tool (e.g. a fluid-permeable li... | 08/06/1991 |
| 5033551 | Well packer and method A method and apparatus for sealing a well annulus, the apparatus comprising a resilient sealing element molded in a upwardly oriented frustro-conical form affixed to a packer body. A running tool is mated with the packer body, the running tool having an i... | 07/23/1991 |
| 4497370 | Apparatus and method for recovery of liquid hydrocarbons from ground water Apparatus and method for recovery of liquid hydrocarbons on ground water in which one or more perforate, small diameter (2 to 4 inch) well casings are installed in the ground in or at least adjacent to a contaminated soil area containing the liquid hydroc... | 02/05/1985 |
| 4359092 | Method and apparatus for natural gas and thermal energy production from aquifers Natural gas and thermal energy are produced from aquifers containing appreciable quantities of dissolved natural gas at or near saturation levels in the aquifer water, with or without associated dispersed vapor phase gas, using a particular method and app... | 11/16/1982 |
| 4260016 | Self-cleaning helical spring sand screen A self-cleaning helical spring sand screen for use at the petroliferous unconsolidated sand strata of an oil well are disclosed. The sand screen comprises a hydraulically actuated, spring based spool valve connected to the upper end of the sand screen for... | 04/07/1981 |
| 4182414 | Water screen A water screen displaying a variable filtration feature is provided wherein the water screen comprises a pipe length made of a compressible plastic material. The pipe length is provided with a plurality of inlet openings thereby permitting fluid located p... | 01/08/1980 |
