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Vol. 230 No. 11 |
Progressing cavity pump for multiphase production
The Moyno Tri-Phaze System is a progressing cavity pump for multiphase pumping applications in the oil and gas industry. The system allows all fluids produced at the well site, including oil, water and gas, to be transported simultaneously through one pipeline to a central processing station. Its high abrasion resistance allows for smooth transfer of sandy fluid as well. The unit is capable of generating flowrates up to 60,000 bfpd with suction pressures up to 900 psi and discharge pressures up to 1,200 psi. Additionally, the Tri-Phaze System features a stator elastomer formulation wtih exceptional resistance to aromatics. Additional features include efficient handling of gas void fractions up to 99%, low-shear pumping action that preserves each fluid’s characteristics without emulsification or degradation, extended well production life and decreased wellbore pressures.
Artificial lift monitoring and optimization service Baker Hughes has launched its Centrilift Vision real-time artificial lift system monitoring and optimization service. The new service collects data from artificial lift operations and then provides clients critical information necessary to optimize production and minimize field down time. It includes several differentiating features compared to other industry artificial lift monitoring and optimization offerings, including fuzzy logic alarming, daily exception reporting and advanced key performance indicator tracking. All of these features allow operators to highlight and diagnose artificial lift issues and opportunities in real time, which ensures optimal production levels from artificially lifted wells and maximizes the life of the artificial lift system. Additionally, Vision provides ease of use and accessibility while conforming to stringent data security standards. Combined with Baker Hughes downhole sensors, the system can unlock the full potential of artificial lift completions.
HPHT memory gauge
Kuster Company introduced the first fully hybridized High-Pressure/ High-Temperature 20,000-psi downhole memory gauge. The K10 Quartz HPHT 200°C hybrid gauge records pressure and temperature to memory in extreme conditions for extended periods of time. The gauge is manufactured from Hastelloy C-276 and Inconel 718/Incoloy 925 alloys, which are fully H2S and CO2 resistant. Unlike surface-mount electronics, the hybrid components are not encapsulated in plastic; the electronics are hermetically sealed in a high-strength enclosure with metal-to-metal seals for high-pressure sour service applications. This significantly increases the life of the circuit in harsh environments. Utilizing a Quartzdyne digital hybrid quartz pressure transducer, the design incorporates a rugged, high-temperature FPGA (Field Programmable Gate Array). The electronics can be pre-configured to acquire samples at a specified fixed interval. Operating with a low-voltage 200°C-capable lithium battery, the gauge utilizes the same PC software as existing Kuster K10 Series gauges.
High-capacity magnet tool
The Magnostar magnet tool from M-I SWACO Wellbore Productivity is a single-piece tool specifically designed for high-torque strings, but that can also be used in conventional workstrings. The tool provides a large magnetic surface area for high-volume ferrous debris extraction when circulation is not enough for wellbore clean-up. The Magnostar is run in the well on the workstring with other wellbore clean-up tools for a variety of applications, including displacements, post-perforating, prefracturing, multi-zone completions, milling, burning, fishing and smart completions. It can be run whenever there is a potential for significant ferrous debris in the wellbore. The magnet is a single-piece mandrel with no internal connections. With its high strength, rare earth magnets, rated to 350°F, it can remove up to 200 lb of ferrous material. It is available in common casing/lining sizes and weights from 13⅜ in. to 7 in. and has a casing-compatible facing material to minimize casing wear.
Fracturing control service BJ Services Co. and Baker Hughes Inc. have launched the IntelliFrac service, an integration of fracturing and production-enhancement services from BJ with microseismic services from Baker Hughes. The combined offering enables operators to monitor fracture dimensions during stimulation treatments and allows real-time control of fracture operations. During hydraulic fracturing, the service monitors and measures the microseismic events that indicate key fracture properties, including azimuth, height, length, volume and complexity of the induced fractures. Once the data set has been gathered and processed, operators can use it to optimize field development plans, and potentially reduce the number of wellbores required to develop the field.
Improved reamer shoe
Downhole Products (DHP) has introduced a modification of its Pen-O-Trator line of reamer shoes with the inclusion of an enhanced aluminum nose with pre-stressed zones on the exterior surface. The design assists in the break-up of the reamer shoe’s aluminum nose during drill-out of the shoe-track following cementing. The engineered pattern of stress zones allows the aluminum to fracture into small pieces when the drillbit encounters the inside of the nose. The smaller pieces are more easily milled, drilled and evacuated from the wellbore. Previous reamer shoes have occasionally caused problems when large pieces of aluminum broke out and spun beneath the drill-out bit, greatly reducing penetration. In those cases, the PDC cutters affixed to the drillbit would sometimes get coated with heated aluminum, reducing their cutting efficiency. Other features of the reamer shoe include surge reduction enhancement, penetration by reaming past obstructions with or without rotation, an integral float valve, and anti-aggressive left-hand blades. The tool’s slick body eliminates solids buildup. It can also include an optional integral low-torque centralizer, dynamically positioned circulating ports for effective hole cleaning, and a self-cleaning cutting structure. The reamer shoes are available in sizes from 65/8 in. to 20 in.
Shallow-water subsea tree
GE Oil & Gas has introduced a new subsea tree.
The VetcoGray S-Series SVXT subsea tree merges horizontal and vertical tree technology, reducing weight by 20%, decreasing height, and also delivering functionality in a pre-engineered, pre-configured modular system. Installation of the SVXT is achieved through a design that enables deployment using standard offshore jackup drilling rigs without the need for major modifications.
New design features include smaller tree and fisher-friendly wellhead protection structures, as well as a barrier approach that removes the need for a separate tree cap. The tree comes with a SemStar5-powered ModPod as the standard control system, along with service and analysis packages, including flow-assurance, riser analysis and other elements.
Three-screw crude oil pipeline pump
Colfax Corp. has begun production of the world’s largest rotary positive-displacement three-screw crude oil pump. The Imo 8L-912Y pump can be installed on pipelines up to 24-in. diameter and transport more than 85,000 bopd at pressures up to 2,000 psi. The pump allows the transport of more viscous fluids using less energy than when using centrifugal pumps, since the hydraulic principle behind screw pump operation delivers both high volumetric and high overall operating efficiencies. In addition, Imo 8L series pumps offer long mean time between repairs and ease-of-maintenance features. Other features include: constant flow, even in the presence of varying system backpressures due to changes in viscosity; nonpulsating flow, without the need for pulsation dampeners; and low noise and vibration levels, minimizing foundation requirements. The pump does not require an external lube system, and can be direct-coupled to a synchronous-speed driver, without a gear reducer, reducing the overall footprint of the equipment. Pump performance can be further controlled with the use of a variable-speed drive to dial in the required flowrate.
Largest stimulation vessel for ultradeep GOM
BJ Services Co. announced the launch of the world’s largest high-performance stimulation vessel for oil and gas wells. Focused for use in the Lower Tertiary and other Gulf of Mexico formations, the Blue Dolphin is designed to provide 20,000 psi of working pressure via multiple Coflexip reeled flexible umbilical lines. With accommodations for up to 45 crew, the vessel can perform large-volume, high-pressure stimulation operations with minimal downtime for multizone or multiwell operations. The vessel features a DP-2 dynamic positioning system, and comes equipped with eight skid-mounted 3,000-bhp Gorilla fracturing units and storage capacity for 2.75 million lb of proppant. It can provide up to 23,000 hydraulic hp and 80 bpm blending rates. At over 300 ft in length, the vessel includes additional storage for up to 11,800 bbl of fluids, 12,600 gal of raw acid and 6,300 gal of solvent. Maximum on-the-fly acid blending capacity is 50 bpm.
Gulf of Mexico well completions have become increasingly complex with the exploration and development wells at 20,000 ft deep or more, in water depths beyond 5,000 ft. High-pressure, high-temperature conditions and complex geologies require advanced sand control and well stimulation technologies. The Blue Dolphin is designed to meet a variety of frac-pack, gravel-pack, proppant fracturing and acidizing conditions. For job control, the vessel features a touch-screen control room with fully automated ratio controls for the addition of proppant and additives. Stimulation processing tanks are continuously monitored with treatment level sensors and indication alarms. Wireless transmission of wellhead parameters permits remote monitoring and reporting of job conditions via satellite and backup systems. Additional control room electronics enable remote critical valve processing actuation, full-flow pressure relief valve actuation, and redundant overpressure shutdown capabilities. The vessel is also equipped with fire and gas detection systems on various levels.
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