Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7854260 | Steam driven turbine drive A downhole arrangement including an outer housing, an inner housing disposed within the outer housing and defining with the outer housing a chamber, a turbine disposed within the chamber, and one or more nozzles disposed at the chamber capable of exhausting steam in... | 12/21/2010 |
| 7284601 | Casing conveyed well perforating apparatus and method Disclosed is a device and method for externally perforating a well-bore casing. The perforating apparatus is attached to the outside of the casing itself and is conveyed along with the casing when it is inserted into the well bore. The perforation is accomplished us... | 10/23/2007 |
| 7284489 | Casing conveyed well perforating apparatus and method Disclosed is a device and method for externally perforating a well-bore casing. The perforating apparatus is attached to the outside of the casing itself and is conveyed along with the casing when it is inserted into the well bore. The perforation is accomplished us... | 10/23/2007 |
| 7278482 | Anchor and method of using same An anchoring tool to position an attached tool, such as a chemical cutter or other tools, in a predetermined position within the bore of a tubular. After the desired location for cutting the tubular or performing other functions is determined, the anchoring tool, al... | 10/09/2007 |
| 7174963 | Device and a method for disconnecting a tool from a pipe string A disconnection device for disconnecting a tool and a pipe string comprises a first connection part releasably connected to a second connection part by means of a locking device and a release object. The release object is soluble by means of, for example, acid. ... | 02/13/2007 |
| 6994161 | In situ thermal processing of a coal formation with a selected moisture content A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to... | 02/07/2006 |
| 6978837 | Production of natural gas from hydrates Methods and apparatus for producing methane gas from a hydrate formation. A column of modified material substantially filling a wellbore extending into the hydrate formation. The column of modified material is permeable to gases. A heat source extends into the colum... | 12/27/2005 |
| 6971238 | Method for disposal of produced water A method and apparatus useful for disposing of the high volumes of produced water associated with coal bed methane natural gas wells. The method taught is to create steam from the produced water and vent the steam into the atmosphere. The apparatus taught utilizes t... | 12/06/2005 |
| 6926080 | Operation method of an oil well pumping unit for well development and device for performing said operation method The invention relates to pumping units for extraction oil from oil wells comprising, all of them being installed on the piping string, a packer, a back pressure valve, a jet pump having the active nozzle, the mixing chamber, the diffuser and the central channel for ... | 08/09/2005 |
| 6886466 | Method and apparatus for sleeving a borehole A novel method and device for sealing a borehole that is filled either partially or completely with water. A water-permeable sleeve is capable of expanding to the diameter of the borehole, and is constructed of a material that will allow the passage of water in and ... | 05/03/2005 |
| 6755249 | Apparatus and method for perforating a subterranean formation Method and apparatus are presented for perforating a subterranean formation so as to establish fluid communication between the formation and a wellbore, the wellbore having casing cemented therein, the casing having a cement sheath therearound. The casing is perfora... | 06/29/2004 |
| 6488086 | Method of thermochemical treatment of a producing formation and combustible-oxidizing compound (COC) for realizing the same Methods for thermochemically augmenting hydrocarbon inflow from a production formation increases the treatment efficacy in the oil and gas producing industry. A combustible oxidizing compound (COC) is pumped into the formation treatment zone and a combust... | 12/03/2002 |
| 6412557 | Oilfield in situ hydrocarbon upgrading process A well configuration is provided comprising an injection well (102) completed relatively high in an oil reservoir (100) and a production well (103-106) completed relatively low in the reservoir (100). The production well has a horizontal leg (107) oriente... | 07/02/2002 |
| 4615391 | In-situ combustion in hydrocarbon-bearing formations Finely divided, preferably colloidally sized magnesium metal particles in an aqueous suspension are infused throughout a hydrocarbon-bearing formation and combusted or reacted with water for in-situ combustion to heat the formation.... | 10/07/1986 |
| 4502539 | Method for the underground gasification of coal or browncoal A method for the underground gasification of coal or browncoal, using two boreholes extending through a coal layer with the slope of said layer, for supplying oxygen to a combustion and gasification front in said layer and discharging combustion gases res... | 03/05/1985 |
| 4458756 | Heavy oil recovery from deep formations Method of heavy oil recovery from deep formations using in-situ wet oxidation steam generation, and a generator for such purpose, comprising a feed for a coal/water slurry and a feed of oxidative gas from ground level to the formation, forming a cavity in... | 07/10/1984 |
| 4441554 | Method for the underground gasification of coal or browncoal A method for the underground gasification of coal or browncoal in an inclined coal layer, in which two boreholes are drilled into said layer, and are continued downwards in a converging manner with the inclination of said layer. After initiating the combu... | 04/10/1984 |
| 4153110 | Ignition of fragmented oil shale below a sill pillar in an in situ oil shale retort An in situ oil shale retort is formed in a subterranean formation containing oil shale. The retort contains a fragmented permeable mass of particles containing oil shale. An open base of operation is excavated in the formation above the retort site, and a... | 05/08/1979 |
| 4102397 | Sealing an underground coal deposit for in situ production A previously mined underground coal deposit is sealed so that the underground void space can be pressurized for production by in situ techniques. Excavated communication passages are sealed by barricades which are further sealed by applying hydrostatic he... | 07/25/1978 |
| 4042026 | Method for initiating an in-situ recovery process by the introduction of oxygen A method for starting a process to recover energy raw materials from a subterranean formation whereby igniters are injected into the upper region of the formation and inert gas is injected into the lower region of the formation, and thereafter an oxygen-c... | 08/16/1977 |
| 3952802 | Method and apparatus for in situ gasification of coal and the commercial products derived therefrom The process of the invention includes the concept of igniting a coal formation in situ with hot granular material and subsequently allowing the material to flow into the burning coal formation to serve as a propping agent in the event of a cave-in. Gasify... | 04/27/1976 |
