New on-line chromatograph
The new GAS EMU analyzer is designed for low-maintenance on-line measurement of the energy content in natural gas.
Introduced as a replacement for manual or periodic sampling, the GAS micro displays the btu value of the gas on an integral LCD and provides component mole percent analysis as required for AGA8 calculations. Component concentrations can be transmitted using standard Modbus protocol via an RS-232 port while configuration and real-time chromatograms are available through a Windows-based MMI.
Designed for single-valve, single-column installation in Division II hazardous areas, the GAS EMU uses the thermistor TCD detector and operates from a 24 v dc electrical supply. Typical uses include natural gas processing, gas transmission, quality control, and process control.
Source: APK Engineers Ltd., Banda Industrial Estate, Nursteed Rd., Devizes, Wiltshire, SN10 3DY, England.
Flare system modified
The Hydra flare system has been modified with a proprietary high-pressure water injection technology. The result is the Poseidon smokeless flare system.
This company says it is a common experience to find production platform operators flaring more gas on a continuous basis than was originally intended. Specific to high-pressure flare designs, this firm has commercialized the idea of injecting water into a flare to help reduce radiation and flare noise levels.
Offshore production platforms and floating storage, production, and off-loading units try to minimize the expensive boom or mounting structure necessary to limit radiation and noise generated by the flare. The main advantage offered by this high-pressure flare design is a low thermal radiation profile allowing shorter boom designs. For an existing installation retrofit, it can allow a significant increase in production capacity without modifying the boom structure, the company says.
Source: John Zink Co., Box 21220, Tulsa, OK 74121-1220.
Tools help analyze petrochemical streams
This firm's liquid standards combined with Welker Engineering Co. constant pressure cylinders (CPCs) help unravel trace impurities in complex liquid petrochemical streams. CPCs help keep volatile trace components liquefied and the standard accurate and unchanged throughout its life. This company's liquid standards and the CPCs use high pressure and a physical barrier to eliminate the headspace, keeping partially soluble gases dissolved in the liquid matrix. A mixer agitates stratified components, helping assure the analyst a homogeneous mixture and reliable analyses, the company says.
The CPC is made from 316 stainless steel, providing corrosion resistance and longevity. It helps assure the analyst that a single phase, nonstratified sample is injected into the gas chromatograph. Vortex mixer and gravity mixer assemblies are available. The vortex mixer offers good mixing for immiscible components or highly stratified blends. The touchless gravity mixer mixes the contents while avoiding any contact with the cylinder wall, virtually eliminating internal wear.
Source: DCG, 4170A Main, Pearland, TX 77581.
Safety valves, retrievable packers
A new poster-sized, 8-page foldout brochure includes four-color exploded views of T-Series safety valves. The large isometric drawings of T Series Models T, TM, and TSM valves are suited for display and orientation to construction and operating details. The nonelastomeric dynamic seal assemblies, rod piston design and leak paths, metal-to-metal flapper seals, and metal-to-metal housing connections are shown in cut-away detail.
These units are normally closed, single-line, hydraulically controlled downhole safety valves used in emergency shutdown systems. Rated for service at 5,000-13,500 psi working pressures and 20-300° F. (-7° to +149° C.) temperatures, the T-Series can be used in casings ranging from 3.625 in. to 11.770 in., and can be set at depths beyond 4,000 ft (1,219 m). The series employs a patented radial-punch fluid communication design that prevents inadvertent actuation by a tool passing through the valve ID.
RBT premium threads help extend valve life, and ultrastrong flapper closures help ensure reliable, repeated sealing. The design provides for optional through-the flapper self-equalization. A special flapper lock-open accessory is available for uses requiring permanent lock open to obviate accidental actuation under long-term degradation of downhole conditions.
The firm also offers-free on request-a poster-sized 8-page foldout of its Reliant Series retrievable packers. The large isometric drawings of Models M and WL are also suited for display and orientation to construction and operating details. Sealing systems, dual body lock rings, and the slip systems and release mechanisms are illustrated, along with exploded views of key functional packer features.
The Reliant Series is a new generation of single-string retrievable packers rated for high pressure/high temperature service, with high tension load limits and easy set and release. Model M is a mechanical, compression set packer designed for through-tubing fracs. Model WL is a wireline set packer that can be run under pressure and allows placement of a retrievable plug at the top of the packer.
Source: Baker Hughes, 654 N. Sam Houston Pkwy. E., Suite 400, Houston, TX 77060-5919.
