New drilling, production carrier fluid
ArivaSol, a new carrier fluid for use in drilling and production operations, offers solvent performance the developer says is equivalent to that of aromatic solvents and physical characteristics that offer enhanced performance in the field. It has minimal environmental impact because it is readily biodegradable, nonbioaccumulating, non-fish-tainting, and has low aquatic toxicity.
ArivaSol carrier fluids show ready biodegradability, no bioaccumulation, and low aquatic toxicity.
Source: Uniquema, Concord Plaza, 3411 Silverside Rd., Wilmington, DE 19810.
Pipe, tubular goods blast-finishing system
Tubular drilling rod couplings weighing up to 70 kg in sizes of l60-385 mm outside diameter can be handled, deburred, and surface finished to precise standards with a Euroblast Plus 6SF pipe and tubing blast-finishing system. The surface profile of the critical threads and seal surfaces is clearly specified and subject to precise evaluation after blasting, the company says.
The new system features a single gun suction feed cabinet.
Designed to assist the operator with lateral and rotational movement of each coupling-inside and outside the blast chamber-a custom built trolley-mounted turntable with a 2 m twin-rail track is integrated within the system. Loading is by overhead crane directly to a 600 mm turntable where the coupling is positioned between four rollers and then wheeled along the track into the blast chamber. During the blast process the operator rotates the coupling about its own axis as first the interior of one end is blast finished, after which the turntable is rotated 180° and the process repeated to finish the opposite end of the coupling. The finished coupling and turntable are then moved outside the cabinet for crane off-loading.
The system can accommodate larger diameter, heavier, and longer pipe and tubing by increasing the size of the blast chamber and using a turntable of 900 mm in diameter with a maximum evenly distributed load of up to 500 kg. The largest blast chamber in the range measures 2,000 mm wide by 2,000 mm deep and 1,145 mm high. By extending the side-loading track, pipe and tubing up to 3 m can be handled and processed.
Source: Guyson International Ltd., Snaygill Industrial Estate, Keighley Rd., Skipton, North Yorkshire BD23 2QR, UK.
Connector quickly joins double wall steel pipe
A new connector is designed to quickly join double wall steel pipe.
Especially suited for offshore deepwater applications, the patented S-SK collar connector allows the field installer to join the internal steel carrier pipe without welding. In doing so, the external steel containment pipe can be easily welded over the bonded joint once the two pipes are connected, the company says.
One circumferential weld on the external pipe replaces one internal weld and up to four external welds Half sleeves or slideover sleeves are not needed to complete the connection of the external containment pipe.
The collar is a bonded joint that features a combination of different contact surface finishes, interference, metal grades, and epoxy compounds. The collar is constructed of steel with a locking-thread serration and a slight taper. The locking serration provides minimum resistance during insertion and resistance to separation. This serration design also provides geometry for epoxy fill, sealing, and lap shear resistance. An o-ring provides an additional measure of protection.
The collar was designed mainly for subsea applications where the J-Lay procedure is utilized. Testing has helped prove its ability to function properly under difficult installation conditions and operating pressures of 7,500 psi. Hydrotests were performed to simulate anticipated pressure cycles over a 30-year design life. The S-SK joint was initially tested to 10,000 psi. In each test cycle, the joint was pressurized to 7,500 psi and temperatures were maintained at approximately 180° F. A final test was conducted at 10,000 psi and no leaks or adverse effects were observed, the firm points out.
Source: Unisert Multiwall Systems Inc., 13295 Rocky Rd., Conroe, TX 77306.
Continuous level transmitter
The Delavan Process Instrumentation Versa-Cap 460 (remote electronics), shown here with a flexible probe, is a series of intelligent radio frequency capacitance continuous level transmitters used to monitor bulk solids and liquids. The 460 requires only one level change for calibration-2% or greater-and has
a convenient analog and digital process display. Other features include keystroke set-up of analog relay, deadband, time-delay, and fail-safe settings along with independently adjustable relay set points with differential.
Source: L&J Technologies, 5911 Butterfield Rd., Hillside, IL 60162.
