Abstract: A method has been invented for separating components of a wastewater stream, the stream containing water, oil (e.g. heavy oil and/or light oil), undesirable organic material (solid and/or liquid), and contaminating solids, the method including feeding a wastewater stream to a first pre-treatment unit producing a first pretreated stream, feeding the first pretreated stream to a first centrifuge for centrifugal separation, producing a first liquid centrifuged stream, and a second liquid stream, and feeding the first liquid centrifuged stream to a second centrifuge producing a resultant centrifuged stream of recoverable oil and a water phase centrifuged stream which can be treated further or fed back to a source for re-use. The source may be a facility from the group including refineries, chemical plants, paper mill plants, and oil and gas processing facilities.

Abstract: A method for remediating cuttings from a wellbore has been invented which, in certain aspects, includes transporting a system for remediating the cuttings to an offshore rig in transportable containers, the system including a thermal treatment system and a condensing system; feeding a slurry of the cuttings with oil and water to the thermal treatment system and heating the cuttings therein producing heated cuttings an a stream with oil and water; discharging the heated cuttings from the thermal treatment; feeding the stream with oil and water to a condenser system producing a liquid stream; and feeding the liquid stream to an oil/water separator producing an oil stream and a water stream.

Abstract: A method for recovering a component from a wellbore fluid mixture has been invented that includes feeding a wellbore fluid mixture to a decanting centrifuge, the wellbore fluid containing at least one liquid component and undesirable solids; separating undesirable solids from the wellbore fluid mixture with the decanting centrifuge, producing an intermediate fluid containing the at least one liquid component and a reduced amount of the undesirable solids; and feeding the intermediate fluid to a secondary centrifuge, producing a final fluid containing the at least one liquid component and a further reduced amount of the undesirable solids. In certain aspects at least some of the undesirable solids are barite pieces, which in one aspect have a largest dimension of no more than 192 microns, and in one aspect wherein at least 50% or 99% of the barite pieces by weight are removed. Such a method is useful, in certain aspects, to separate undesirable solids have a largest dimension of at least 75 microns.

Abstract: A lined tubular assembly and a method and apparatus for lining an elongated tubular article to form the assembly. The lined tubular assembly has a metal tube with a non-metallic liner bonded to the internal surface thereof by a bonding agent. A non-metallic flanged end piece is secured to each end of the metal tube and has a first portion extending into the tube between the liner and the internal surface of the tube and a second portion covering the end surface of the tube. The method for producing the assembly includes introducing simultaneously into the tubular article both a tubular liner and a bonding agent for bonding the liner to the internal surface of the tubular article. The apparatus for producing the assembly includes an elongated liner installation device that simultaneously introduces the liner and bonding agent to the interior of the tubular article.

Abstract: A transducer assembly and method for the ultrasonic inspection of tubing. An elastic membrane is used to form a reservoir of ultrasonic fluid coupled to ultrasonic transducers with the membrane conforming to the surface of the tubing being inspected. Guide wheels maintain the membrane out-of-contact with the tubing during relative rotational movement of the assembly and tubing during inspection. Water is introduced between the membrane and the tubing to provide ultrasonic coupling of the tubing to the transducers through the fluid of the reservoir.

Abstract: A coupling assembly having an annular coupling with internal threads having a continuous plastic, corrosion-resistant coating. Opposed tubes are provided with a similar internal coating. The tubes have external threads inserted into the coupling with the internal and external threads being in threaded engagement. An annular gasket is provided of rigid material and is mounted between and in sealing engagement with opposed ends of the tubes within the coupling. The gasket has a continuous radial portion extending between the opposed ends of the tubes and in spaced apart relation thereto. O-rings are in sealing engagement with the tubing ends and the continuous radial portion of the gasket. A pair of opposed flanges extend from opposite sides of the continuous radial portion of the gasket and are in sealing contact with an interior surface portion of the tubes.

Abstract: A transducer support device is provided which when employed with magnet flux leakage detectors renders the detectors sufficiently compact and lightweight to facilitate use thereof at the wellhead to avoid the requirement of a lay-down horizontal inspection at a location apart from the wellhead.

Abstract: An in situ method of cleaning contaminated soil and/or water comprises breaking up contaminated soil, admixing soil with water and a biodegradable detergent in a proportion effective to obtain an aqueous slurry where the contaminant and the detergent interact, allowing the slurry to stand under conditions effective to permit any contaminant-detergent formations to rise in the aqueous slurry, separating the contaminant-detergent formations from the aqueous slurry, now comprising partially decontaminated soil and water, separating the soil from the water, repeating the cleaning and separation steps until the soil has less contaminant than a predetermined value, typically a 80 to 90 percent decrease, admixing the low contamination-soil with water and an activating agent for contaminant-degrading microorganism, the agent being capable of generating hydrogen peroxide (H.sub.2 O.sub.

Abstract: A device for the in-line inspection of pipe. The device is spring-loaded to provide an adequate pressure between the supporting brushes of the device and the interior pipe wall for effective magnetic inspection with pipe of various internal diameters. A biasing spring is used in association with the spring-loaded device to extend and provide a supplemental force when the device passes from a relatively small to a relatively large diameter pipe to rapidly and effectively position a magnetizing section of the device within the larger diameter pipe.

Abstract: A coupled pipe assembly having a pair of opposed, axially-positioned pipes each having opposed beveled ends and interior corrosion-resistant linings. A sleeve having heat-deflecting material is provided axially within the pipes with the heat-deflecting material being positioned adjacent the opposed pipe ends to protect the corrosion-resistant linings from heat damage during welding of the pipe ends. The sleeve has a tapered cross-section extending to and forming a rounded end edge portion.

Abstract: An in situ method of cleaning soil and/or water contaminated with a contaminant comprising one or more compounds selected from the group consisting of metal compounds, sulfur compounds and cyanide compounds comprises breaking up contaminated soil, admixing soil with water and a biodegradable detergent in a proportion effective to obtain an aqueous slurry where the soil, any contaminant and the detergent interact to form contaminant-detergent formations, allowing the slurry to stand under conditions effective to permit any contaminant-detergent formations to rise in the aqueous slurry, separating the contaminant-detergent formations from the aqueous slurry now comprising partially decontaminated soil and water, separating the soil from the water, repeating the cleaning and separation steps until the soil has less contaminant than a predetermined value, typically a 80-90% decrease, admixing the soil having a lower contamination level with water and an activating agent for microorganisms capable of removing the

Abstract: A filter plate for removing hydrocarbons and other contaminants from solutions and gases comprises a plate provided with rows of alternate perpendicular and parallel, substantially linear openings. A liquid and gas filtering apparatus comprises a container provided with the filter plate of the invention, means for inflow and outflow of water or air and means for introducing and removing filtering materials. A method of purifying a solution or a gas comprises removing impurities by passing the solution or gas through a filtering material supported on the filter plate of the invention. A method of removing hydrocarbons and other contaminants from a solution or gas comprises passing the solution or gas through a filtering material supported on the present filter plate. A method of reducing clogging when removing contaminants from a solution comprises passing the solution through a filtering material supported on the filter plate of this invention.

Abstract: A method and apparatus for removing contaminants, including hydrocarbon and metal, from contaminated particulate material, such as gravel, soil, and the like. Initially, contaminants are removed by contact with water at a temperature higher than a melting temperature of the contaminants to remove them by melting. The removed contaminants are then subjected to specific gravity separation in water and filtration, including ion exchange and activated carbon filtration.

Abstract: An in situ, on-the-ground method of cleaning contaminated soil comprises breaking and piling up contaminated soil, placing the broken soil in a substantially enclosed on-the-ground system and circulating air under pressure to promote an increase in temperature which aids the oxidation, vaporization and gasification of the contaminants and substantially harmless metabolic products thereof produced by indigenous microorganisms, extracting any gases or vapors comprising the contaminants and metabolic products thereof from the now substantially decontaminated soil under vacuum, filtering the thus extracted gas- or vapor-containing air to separate clean air from the contaminants, and return it to the environment or recycle it, and returning the decontaminated soil to the environment.

Abstract: A flexible double U-joint assembly that includes structure for locking the assembly in a single U-joint mode to permit easy insertion into a pipeline with an associated inspection device. When in the pipeline, the assembly may be converted to a double U-joint mode by applying tension to the device.

Abstract: The apparatus of the present invention is a machine for feeding, indexing, testing, and storing tubular goods. The machine concentrates on the end segments of the tubular goods. The machine uses the eddy current test method to test the outer surface, the inner surface, and internal and external threads. The tests may be conducted simultaneously and at each end of the pipe. The pipe is spun during the examination so that the sensors of the inner and outer surfaces, when driven, trace a helical pattern on the pipe, and the thread sensor is driven along the thread by the rotational force applied to the pipe being tested.