well plug Articles

  • Plugging `hot` pipes in extreme environments

    Some of the world's most intricate infrastructure is found in power plants, chemical plants, refineries, and other factories that use and combine industrial chemicals. The piping for fuel, chemical transport, water supply, and cooling needs is typically very complex and subject to high temperatures and pressures. And since plants are harsh environments, it's a given that piping needs regular ...


    By Petersen Products Company

  • The Evolution of Plug Flow BNR at Durham AWWTP

    ABSTRACTThis paper describes experiences with plug flow nitrification and plug flow biological nutrient removal (BNR) at Durham Advanced WWTP. The kinetic advantages of the plug flow configuration for nitrification have been recognized for some time; however, limited plug flow BNR process design information was available at the time (1997). The case study began with pilot testing in 1998, during ...

  • Abandoning Monitoring Wells: Safety Issues

    Monitoring wells are typically constructed to gauge the extent of contamination, assess water quality and conduct other hydrogeologic studies. Depending on its objective, the monitoring well may remain in use or may be abandoned permanently. When declared inactive, the well is many a times left as it is. Open unused wells are hazardous to life and environment: • Contamination may spread from one ...

  • Trends in plug and abandonment cost in the Gulf of Mexico, 2002?2007

    Wells are drilled to explore for, delineate and produce hydrocarbon reservoirs. At the end of their useful life, wellbores are permanently abandoned in a process known as Plugging and Abandonment (P&A). The purpose of P&A is to prevent the migration of fluids from the wellbore and establish a permanent barrier to the existing geologic formation. In this paper, we assess trends in P&A costs in the ...


    By Inderscience Publishers

  • An asymptotic observer-based monitoring scheme for a class of plug flow reactors

    In this paper a monitoring tool is designed for a class of plug flow reactors whose mathematical model is described by a set of first-order partial differential equations with different coefficients in the convective terms. The infinite dimensional structure of such a tool is derived according to the methodology established in the design of the well-known asymptotic observer. As a consequence, it ...


    By IWA Publishing

  • Time to change habits, as well as light bulbs?

    November 16, 2010 We are bombarded daily by advertisements selling us soft drinks, pharmaceuticals, cars, insurance, junk food, teeth whitener, diet programs, and on and on. But when was the last time someone tried to sell you on using more electricity? I cannot think of a single commercial that encourages us to plug-in, even though electricity is the chief product of 3,000 utilities in the ...

  • An inflatable plug works better than bypass pumping when closing off a 60-inch penstock

    When Brian Simon, a project manager at Grace-Titan DVBE (based in Redding, California) first looked at the Potter Valley Bypass job it looked difficult, but straightforward. Grace-Titan was being asked to remove a section of the penstock that supplies Pacific Gas & Electric's (PGE) Potter Valley hydroelectric plant and install a Y-branch. But that meant that the five-foot diameter penstock ...


    By Petersen Products Company

  • Replacement Inflatable Packers and elements offer inflatable packers form to cement grouting packers to water well decommissioning packers

    Replacement Inflatable Packers and Elements Pty Ltd is a West Australian company with 25 years experience in designing and building inflatable packers. Replacement Inflatable Packers and Elements Pty Ltd maintain a strong competitive profile, demonstrating leadership and innovation in applying cost effective inflatable packer solutions to your engineering ...

  • Pyramat HPTRM succeeds where others fail at restoring shore

    BACKGROUND This site is on Lake Winnebago in Wisconsin. The lake is very large, the biggest in the state, and gets significant ice buildup every year that wreaks havoc on the shoreline. DESIGN AND CONSTRUCTION This site has 8 foot wave action that has been documented by the Department of Natural Resources. In years past concrete sea walls had been installed, but the walls cracked and were ...

  • Another source of methane release

    Mary Kang wasn’t even originally looking at methane emissions. The Princeton doctoral candidate was trying to get to the bottom of another issue: carbon dioxide escaping after being stored underground. During that research, she got to wondering about methane emissions from old oil and natural gas wells. What Kang, now a Stanford postdoctoral researcher, and other researchers found could be ...


    By Ensia

  • Case study - Interest grows in OPEX saving UV water treatment technology used for enhanced oil recovery

    atg UV Technology, a UK manufacturer of water treatment packages for the Oil and Gas sector have seen growing interest in the application of UV disinfection for the treatment of sea water used for well injection in enhanced oil recovery applications. UV light is a chemical-free, physical disinfection technique that is widely used throughout the offshore sector for applications such as potable ...


    By atg UV Technology

  • Lead, copper, cobalt and nickel removal from water solutions by dynamic ionic exchange in LECA zeolite beds

    LECA zeolite, a novel material containing zeolite crystallised on light expanded clay aggregates (LECA) substrates with the aid of a hydrothermal process, was used in ionic exchange applications. LECA zeolite combines the porosity, low density and good mechanical properties of LECA substrates with the microporosity and ion-exchange properties of zeolites. In the present work, the dynamic ionic ...


    By Inderscience Publishers

  • The Next-Generation Water Filter for the Oil and Gas Industry

    Many segments of the oil and gas production industry need improvements in water filtration over traditional methods. This is true because of the trend toward oil and gas production in tighter, less permeable reservoirs and the greater use of enhanced oil recovery (EOR) techniques, many of which involve injecting water into the oil reservoir. To protect the integrity of such reservoirs, the amount ...


    By Eco-Tec Inc.

  • Hybrid Solar/Wind plant in Madagascar

    Distinguished among the winners of the Sunidarity initiative, the World Energy Foundation announced Thursday that it had installed in the extreme south of Madagascar a concentration photovoltaic equipment (CPV) provided by Soitec, one of the leading manufacturers and suppliers of global CPV systems. Called Plug & Sun, this equipment allows an autonomous solar-electric generation in areas ...


    By Greenshine New Energy LLC

  • Sub-frost artesian environmental packer

    Artesian environmental well casings in cold regions pose a number of problems: Icing around the wellhead may pose safety concerns The true head cannot be measured without plugging the casing If the casing is plugged on the surface, freezing action may rupture the casing even if it is steel, almost certainly if it is PVC. The Sub-frost Artesian Environmental ...


    By RST Instruments Ltd.

  • Abrasives case study - Essroc Materials, Inc.

    Plugging, Surging and Wear-Through Virtually Eliminated by Smart Elbows® At Essroc Materials, Inc., formerly Coplay Cement, plugging and elbow wear in pneumatic conveying lines caused unnecessary downtime and repair expense. The Frederick, MD, facility is a wet-process cement plant that produces 350,000 to 400,000 tons of cement a year using two 400-foot-long rotary ...


    By HammerTek Corporation

  • Precipitator Solves Dryer Problem

    Plum Creek Manufacturing, Columbia Falls, Montana, installed a PPC Industries electrostatic precipitator to solve a direct fired dryer dust plugging problem. The electrostatic precipitator was installed in a very congested area and the project had to be done so the dryer was off-line a minimal amount of time. Plum Creek personnel relocated existing equipment, poured concrete footings, ran all of ...

  • Hydraulic Fracturing Market Analysis By Technology, Material (Proppant), Application (Shale Gas, Tight Gas, Tight Oil) To 2020

    The global hydraulic fracturing market is expected to reach USD 90.55 billion by 2020, according to a new study by Grand View Research, Inc. Regulatory support in the form of tax benefits and financial incentives, particularly in North America and Asia Pacific is expected to drive the global hydraulic fracturing market over the next six years. Depleting conventional oil & gas reserves has ...


  • Deepwell injection

    Project profile: BP Chemicals DATA: End User: BP Chemicals Location: Lima, Ohio Commissioned: November 2000 Units: (2) FDB-64P Hydromation, Deep Bed Filter Flow Rate: 1,300 gpm Process: Solids removal prior to deep well disposal ...


    By Filtra Systems

  • Broadband challenge facing global competitiveness

    Broadband has become a vital tool for producers and distributors of goods as it is for people plugging into all the social and cultural opportunities offered by the web. As a military superpower and the world's top economy, the USA is losing the race to Europe and East Asia in developing high-speed broadband. While the USA has a substantial number of broadband subscribers, it is mostly in 'basic' ...


    By Inderscience Publishers

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