Quotables
"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5947644 | Construction of a fluid impermeable subterranean barrier wall A process is provided for constructing a fluid impermeable subterranean barrier wall in a permeable earthen material at an earthen surface. The process is initiated by excavating an earthen pit in the permeable earthen material. A gelable slurry is prepar... | 09/07/1999 |
| 5919354 | Removal of sulfur from a hydrocarbon stream by low severity adsorption A process is provided for reducing the sulfur content of a hydrocarbon stream, wherein a hydrocarbon stream containing sulfur constituents is contacted with a sorbent under temperature and pressure conditions of low severity. The sorbent includes a metal-... | 07/06/1999 |
| 5909772 | Apparatus and method for estimating liquid yield of a gas/condensate reservoir Apparatus and method for determining a liquid yield from a gas/condensate reservoir. The apparatus and method first determines the porosity at each depth of a reservoir, using open hole logging techniques, before the well within the reservoir is used for ... | 06/08/1999 |
| 5879563 | Use of multiple treatment agents to reduce hardness of an oilfield produced water A process is provided for treating a water to reduce its hardness by performing a series of sequential stages including a primary chemical reaction stage, a secondary chemical reaction stage and a scale removal stage. The primary chemical reaction stage i... | 03/09/1999 |
| 5879562 | Water treatment process for reducing the hardness of an oilfield produced water A multi-stage process is provided for treating a water to reduce its hardness. The feed water is initially heated to a thermal reaction temperature in a heating stage. The heated water is then maintained at or near the thermal reaction temperature for a s... | 03/09/1999 |
| 5878815 | Assembly and process for drilling and completing multiple wells An apparatus and process are provided for drilling and completing multiple subterranean wells from a template which is secured within a cased well bore extending to the surface. An orienting cam having a bore therethrough is positioned above the template ... | 03/09/1999 |
| 5861441 | Combusting a hydrocarbon gas to produce a reformed gas A system and process are provided for converting a hydrocarbon gas to a reformed gas containing hydrogen and carbon monoxide. In accordance with a first embodiment, the system includes a primary combustor, compressor and power turbine. The process is prac... | 01/19/1999 |
| 5837893 | Method for detecting pressure measurement discontinuities caused by fluid boundary changes A pressure data validation method which measures differential pressure along with measuring the absolute pressure while testing a well. The method uses a differential pressure gauge having a known distance between the two differential pressure measuring g... | 11/17/1998 |
| 5832999 | Method and assembly for igniting a burner assembly A method and assembly for igniting a burner using a pyrophoric liquid. A quantity of pyrophoric liquid is first transported from a container to a slug launching chamber and then transporting into a fuel gas stream for the burner. The slug launching chambe... | 11/10/1998 |
| 5834406 | Foamed gel for permeability reduction or mobility control in a subterranean hydrocarbon-bearing formation A process employing a foamed gel in a subterranean hydrocarbon-bearing formation to reduce the permeability of a treatment region therein or control the mobility of a drive fluid in the formation. The foamed gel is formed from a crosslinkable carboxylate-... | 11/10/1998 |
| 5816323 | Permeability reduction in a hydrocarbon-bearing formation using a stabilized polymer gel A process and composition are provided for permeability reduction in a hydrocarbon-bearing formation to improve hydrocarbon recovery therefrom. The process includes placement of a crosslinked polymer gel in the treatment region preceded by surface prepara... | 10/06/1998 |
| 5783760 | Method and apparatus for core flooding studies An apparatus and process for observing fluid replacement in core samples while simulating subsurface reservoir conditions, including oil composition, temperature, fluid pressure, and overburden pressure. Overburden pressure is applied to a core sample pla... | 07/21/1998 |
| 5778977 | Gravity concentrated carbon dioxide for process This invention relates to the recovery of oil from an oil-bearing formation having a natural fracture network with substantial vertical communication and wherein gravity drainage is the primary means of recovery. A downwardly inflating gas-cap is pressure... | 07/14/1998 |
| 5780395 | Foam for improving sweep efficiency in subterranean oil-bearing formations A foam is provided having utility for improving sweep efficiency in subterranean oil-bearing formations and having specific utility for conformance improvement treatments and mobility control in such formations. The foam is a gel medium having a gas dispe... | 07/14/1998 |
| 5775426 | Apparatus and method for perforating and stimulating a subterranean formation A method and apparatus for perforating and stimulating a subterranean formation which is penetrated by a well bore having casing positioned therein so as to establish fluid communication between the formation and the well bore. A shell, sheath or sleeve o... | 07/07/1998 |
| 5736117 | Sulfur debonding agent enhancing sulfur recovery from a hydrogen sulfide conversion process Recovery of an insoluble polymeric sulfur species from the reaction solution of a hydrogen sulfide conversion process is enhanced by adding a sulfur debonding agent to the hydrogen sulfide conversion reaction solution either at the outset of the process o... | 04/07/1998 |
| 5733941 | Hydrocarbon gas conversion system and process for producing a synthetic hydrocarbon liquid A system and process are provided for converting a light hydrocarbon gas to a synthetic heavier hydrocarbon liquid. The system includes an autothermal reformer, a Fischer-Tropsch reactor and a Brayton cycle that are structurally and functionally integrate... | 03/31/1998 |
| 5711376 | Hydraulic fracturing process A process for fracturing a subterranean formation below an earthen surface in fluid communication with a wellbore. A foamed fracturing fluid comprising an aqueous solvent, a water-soluble synthetic polymer, a surfactant, and a gas is premixed at the surfa... | 01/27/1998 |
| 5706895 | Polymer enhanced foam workover, completion, and kill fluids Polymer enhanced foam fluid is utilized for completion, workover, and kill operations in wells penetrating subterranean formations. The foam is formed by appropriately adding a gas to an aqueous solution of a substantially noncrosslinked water soluble pol... | 01/13/1998 |
| 5691809 | Method and apparatus for studying organic deposition A method and apparatus for studying the conditions under which multiple condensed phases form during production, transportation, and processing of crude oil and other organic liquids. The sample temperature and pressure are controlled, and changes in fluo... | 11/25/1997 |
| 5685373 | Assembly and process for drilling and completing multiple wells An apparatus and process are provided for drilling and completing multiple subterranean wells from a template which is secured within a cased well bore extending to the surface. An orienting cam having a bore therethrough is positioned above the template ... | 11/11/1997 |
| 5682951 | Foamed gel completion, workover, and kill fluid A process employing a foamed gel in a wellbore as a completion, workover, or kill fluid. The foamed gel is formed from an aqueous solvent, a water-soluble carboxylate-containing polymer crosslinked by a crosslinking agent containing a reactive transition ... | 11/04/1997 |
| 5655602 | Apparatus and process for drilling and completing multiple wells A subterranean well system and a process for drilling and completing such a system from a first subterranean well bore which extends to the surface of the earth. A second well bore may be drilled from the first well bore and a first tubular of a multiple ... | 08/12/1997 |
| 5651637 | Road bed construction An asphaltic roadway base or sub base which includes a by-product of petroleum refining units utilizing a Residuum Oil Supercritical Extraction (ROSE) process. The base course is a designed mixture of a resin-asphaltene residuum and aggregate, wherein the... | 07/29/1997 |
| 5650379 | Process for reducing permeability in a subterranean hydrocarbon-bearing formation utilizing a gelation solution having a controlled gelation rate A process and composition are provided for permeability reduction in a hydrocarbon-bearing formation to improve hydrocarbon recovery therefrom. The process includes placement of a crosslinked polymer gel in the treatment region preceded by surface prepara... | 07/22/1997 |
| 5609208 | pH dependent process for retarding the gelation rate of a polymer gel utilized to reduce permeability in or near a subterranean hydrocarbon-bearing formation A process and composition are provided for permeability reduction in a treatment region to improve hydrocarbon recovery from a hydrocarbon-bearing formation. The process includes placement of a crosslinked polymer gel in the treatment region preceded by s... | 03/11/1997 |
| 5598891 | Apparatus and method for perforating and fracturing An apparatus and method for perforating and fracturing subterranean formations to enhance fluid production. At least one unlined punch charge is loaded into at least one punch charge carrier, and the void spaces in the punch charge carrier are filled with... | 02/04/1997 |
| 5571986 | Method and apparatus for activating an electric wireline firing system A method and apparatus of activating electric wireline firing systems in which a firing pin is restrained against movement toward a detonator until application of sufficient voltage to the apparatus. The firing pin is not permitted to move immediately upo... | 11/05/1996 |
| 5563186 | Crosslinked alginate-based gels for matrix conformance A composition of matter for matrix conformance formed from an aqueous solution of an alginate polysaccharide and a method of forming an alginate polysaccharide gel. A Group IIA cation, Fe2+, Fe3+, Al3+, Mn2 +, Z... | 10/08/1996 |
| 5563333 | Method and apparatus for core flooding studies An apparatus and process for observing fluid replacement in core samples while simulating subsurface reservoir conditions, including oil composition, temperature, fluid pressure, and overburden pressure. Overburden pressure is applied to a core sample pla... | 10/08/1996 |
| 5547314 | Offshore system and method for storing and tripping a continuous length of jointed tubular conduit A system and method is provided for storing a continuous length of an assembled jointed tubular conduit on an offshore vessel and for conveying the tubular conduit between the deck of the vessel and a subsurface wellhead on the floor of the body of water.... | 08/20/1996 |
| 5531811 | Method for recovering entrained liquid from natural gas A process for recovering entrained liquid from natural gas. The gas containing entrained liquid flows from a subterranean formation via a well into a gas/liquid separation chamber where the liquid and gas are separated by centrifugal force. One or more va... | 07/02/1996 |
| 5513712 | Polymer enhanced foam drilling fluid A process employing a polymer enhanced foam in a wellbore as a drilling fluid during a wellbore drilling operation. The polymer enhanced foam is formed from an uncrosslinked acrylamide polymer, a surfactant, an aqueous solvent, and an added gas.... | 05/07/1996 |
| 5511617 | Apparatus and method for temporarily plugging a tubular An apparatus and method for controlling the pressure at which a fluid is introduced into a well penetrating a subterranean formation. The apparatus comprises a blow out sub having a sealed chamber between two plugs. The chamber is filled with a fluid at a... | 04/30/1996 |
| 5505074 | Apparatus and method for determining minimum miscibility pressure An apparatus and method for determining the minimum miscibility pressure of a system comprising a gas and a liquid. A liquid-filled tube is equilibrated at a predetermined temperature and initial pressure, and pressure changes are determined as a single g... | 04/09/1996 |
| 5503226 | Process for recovering hydrocarbons by thermally assisted gravity segregation A process for recovering hydrocarbons from a subterranean formation having low permeability matrix blocks separated by a well-connected fracture network. Hot light gas is injected into the formation to heat the matrix blocks and create or enlarge a gas ca... | 04/02/1996 |
| 5495891 | Foamed gel employed as a drilling fluid, a lost circulation fluid, or a combined drilling/lost circulation fluid A process employing a foamed gel in a wellbore as a drilling fluid, lost circulation fluid, or combined drilling/lost circulation fluid during the wellbore drilling operation. The foamed gel is formed from a crosslinkable carboxylate-containing polymer, a... | 03/05/1996 |
| 5488990 | Apparatus and method for generating inert gas and heating injected gas A downhole burner that economically generates hot inert gas and injects this gas into a subterranean formation. The burner has a nipple attached to a first tubing string that carries an oxidizer to the burner. The first tubing string also contains a coil ... | 02/06/1996 |
| 5476145 | Selective placement of a permeability-reducing material in a subterranean interval to inhibit vertical flow through the interval A process is provided for selectively placing a permeability-reducing material in an interval of a subterranean hydrocarbon-bearing formation penetrated by a well bore to inhibit the vertical flow of fluid between the well bore and an aquifer underlying t... | 12/19/1995 |
| 5467826 | Oilfield tubing string integrally enclosing a fluid production or injection tube and a service line An integrated oilfield tubing string is provided with two continuous fluid-isolated interior passageways extending longitudinally therethrough, wherein the first interior passageway serves as a production or injection tube and the smaller second interior ... | 11/21/1995 |
