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Vol. 225 No. 6 |
Biocides in oilfield water
New technical literature on the performance advantages of UCARCIDE glutarladehyde products in oilfield water and fluid applications is available from the Biocides Group of The Dow Chemical Company. Both UCARCIDE glutaraldehyde products and THPS are widely specified for oilfield applications, due to their broad-spectrum performance and efficacy at higher pH levels. However, determining which biocide is best suited for the job is contingent upon the specific performance demands of the application. The literature highlights several studies comparing the performance of the proprietary glutaraldehyde products and THPS against seawater sulfate-reducing bacteria and biofilm, including efficacy and speed of kill. The combined use of the biocides to control unique bifouling challenges and their environmental challenges are also examined.
High-capacity control valve
 Flowserve Corp. has launched its new Mark 100 globe control valve, designed for improved capacity, extra-fine control, and easy maintenance. The valve delivers higher capacity in a smaller valve than conventional globe control valves in sizes 6 – 16 in. and pressure classes 150 – 600 psi. The wide, streamlined gallery of the valves increases capacity an average of 15% over competing valves. A 10-in. Mark 100 has a tested capacity comparable to the catalog capacity of many 12-in. valves. Available with a full range of noise and cavitation reduction, severe service trims, the valves utilize longer strokes than any competing solution, which enables precise flow even under rigorous demands. With top-entry clamped seats, the heaviest stems in the industry, and an integral body stand, the Mark 100 globe allows easy maintenance and reduces downtime.
Magnetic resonance service
Baker Atlas introduced the new Magnetic Resonance Explorer (MREX). This service acquires higher quality NMR data in less time than previous generation NMR logging systems. The new-generation tool measures porosity, fractional volumes of bound and moveable fluids, and formation permeability. Also, comprehensive data acquisition packages are available for accurately characterizing reservoir fluids. The MREX service was developed, based on NMR logging experience in thousands of wells worldwide. The design incorporates the strengths of previous-generation NMR logging technologies, with new features added to overcome many of the problems these tools encountered in the downhole environment. The tool incorporates a side-looking antenna design that keeps the sensor close to the borehole wall. This provides high-quality data regardless of mud conductivity, borehole size or deviation. The service also employs a gradient magnetic field to provide comprehensive NMR data for formation evaluation and fluid analysis in almost any borehole environment. The MREX instrument operates at multiple frequencies, allowing for faster logging and multiple, simultaneous, NMR experiments in a single logging pass. These instrument capabilities, along with new acquisition techniques, provide improved NMR data accuracy, and superior hydrocarbon typing and fluids analysis.
Well-log imaging
A2D Technologies has released the technical specifications for a new, calibrated image format, RasterML, into the public domain. The modernized format uses XML-based technology to describe depth-calibrated well-log images. XML is an open standard for identifying and describing data, and facilitates the exchange of data between individual applications or between data stores. RasterML is a simple format for exchanging well log images over networks. The company's A2D depth-calibrated well-log images, under the tradename smartRASTER, are basic TIFF files, or well-log scans, that have had additional intelligence added to them about the log type, log-curve scales, measured depth positions and unique well identifier. The images can be imported into a number of industry-standard well-log correlation tools for tops picking and cross-section construction.
High-pressure needle valves
 New Swagelok F10 series forged-body needle valves feature working pressures up to 10,000 psig (690 bar). They are available in straight, 90° and oblique angle configurations. A non-rotating hardened needle provides positive shutoff. Additional highlights include: cold, rolled stem threads to provide high strength and smooth operation; stem threads located above the packing and protected from system media with a shroud to protect the stem threads from dust and dirt; stainless steel handle with a square drive stem and lockout; and a choice of PTFE or graphite packing materials
Rig elevating system
Offshore Source introduces the Hydrajack rig elevation system, a jacking device that is less costly than conventional rack-and-pinion configurations. The Hydrajack is able to exactly match the requirements for lift capacity, from 50 to 2,500 kips per pinion, and more. The scaleable design offers a safe method of lift, where the load is always positively supported and where lift is continuous, with no starts and stops. The system also has variable speed, so exact position placement of the platform is possible. The design is a combined lift and lock-off system, therefore, no extra lock-off system is required to maintain position or ride out a storm. The control system can even tell operators in real-time what the load is at each leg and send data remotely via rig communications to the operations office. The PLC displays, in real time, all the system's operating conditions combined with system diagnostics.
Integrated workflow software
Landmark Graphics Corp. released The Engineer's Desktop, an integration platform for drilling and completions, and production operations workflows. The product provides a comprehensive suite of well design, real-time operations, field surveillance and economic tools in a common data management environment. It combines the capability of the Drilling Desktop, released last year, with production and economics. The Drilling Desktop, a critical component of the Engineer's Desktop, has new capabilities that allow cross-domain analysis, enabling drilling engineers to achieve better wellbore placement, greater levels of efficiency and reduced drilling costs. The product suite features new data management, visualization, engineering and query capabilities to help deliver superior well performance through integrated engineering, reporting and analysis work processes.
Extra-high-strength casing
For deepwater environments where large-OD casing is required, Grant Prideco offers TCA 140-Q1 and TCA 150-Q1 casing. The super-tough casing has extremely high burst resistance and impact toughness that is at least 10% better than standard API/ISO Q125-Type 1 grade casing, without sacrificing strength, allowing lighter-weight casing to be used. Simultaneous ID/OD quenching ensures complete, through-wall, martensitic transformation, resulting in superior metallurgical uniformity. Hot-sizing/ straightening at near-temporing temperatures prevents degradation, and optimizes burst and collapse resistance. GrantPrideco's in-house electromagnetic imaging inspection provides more precise flaw detection than traditional EMI. In addition, an independent third party conducts full-length ultrasonic inspection.
Sealless pump website
Magnatex Pumps, Inc., launched a new interactive website that features the complete line of Magnatex and Texel sealless, mag-drive pumps. The site offers a comprehensive overview of both metallic and fluoropolymer-lined, sealless pumps, including product features and benefits, animated internal fluid flow paths, full-color cutaway product views, technical and maintenance information, performance curves and e-mail contact access. Downloadable technical literature is also included. Magnatex MP/MPL, MPH and MPT close-coupled pumps are designed to handle low- to medium-flow, medium- to high-head applications, using standard C-face motors. Their efficient designs allow easy maintenance and require no alignment. Also offered is the Magnatex MAXP Series of magnetically-driven, ANSI pumps that conform to ANSI B73.3 hydraulic and dimensional standards.
H2S-in-liquids analyzer
The ability to analytically quantify H2S in non-volatile liquids, such as water and light crude, are enhanced with the Sample Transfer Stripper (Membrane Technology) and ratiometric colorimetric technologies from Analytical Systems International. The STS unit separates the liquids in a heated vessel from the H2S gas sample, which is then swept into the analyzer on an air or nitrogen carrier for quantitative analysis in ppb/w and ppm/w, up to saturation levels. Analysis uses lead acetate sensing tape, the only detection method that is absolutely specific to H2S. Optical illumination and detection are integrated for maximum resolution accuracy. The process is automated and continuous.
Subsea inspection
 EV Offshore Ltd has introduced the CamScan EVO2, a turnkey subsea camera inspection system designed specifically for the offshore oil and gas industries to visually inspect conditions downhole and subsea. The CamScan EVO2, which operates effectively in depths to 6,500 ft (2,000 m), is a complete turnkey system that can be used to visually inspect wellheads, analyze risers, completions, tieback threads and pressure seals. The system can be used while free-hanging or mounted on drill pipe, subsea tools or a variety of structures. With a black-and-white, low-light camera and a high-definition color camera mounted in the same head, users can more easily adapt to conditions downhole or subsea. CamScan EVO2 offers a main viewing console, with recording on digital tape, and also remote viewing on a separate console, recording on standard VHS tape. The camera features infinitely variable internal LEDs, each of which is mounted in a ball and yolk that provide continuous 360° rotation and tilt utilizing miniature sliprings. Rotary encoder technology with onscreen graphics gives feedback for exact position of the camera to the operator. The system comes with a drill pipe running tool.
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