Featured this monthCarbon Dioxide May Offer An Unconventional EOR OptionTests showing increased recoveries in the Bakken formation using CO2 could have significant implications for the upstream oil and gas industry.
More Carbon Dioxide Means More Oil Research into whether CO2 can be used to coax billions more barrels of oil from unconventional formations is beginning to show promise.
Managing SEMS Audits: Past, Present, and Future Oil and gas companies are adapting to new safety regulations governing operations in the US Gulf of Mexico.
Drilling Conference Covers Depth and Breadth of Industry A preview of the 2014 IADC/SPE Drilling Conference and Exhibition in Fort Worth, Texas.
Developing Long-Distance Power-Distribution Systems Over the next decade, the number of electrically powered subsea systems in operation around the world will increase as companies adopt new technologies to produce oil and gas offshore more efficiently.
Guest Editorial The oil and gas industry is a major driver of high-performance computing development, particularly for upstream seismic processing and permanent field monitoring. But exploration and production still lags behind other industries in the use of digitization.
Pioneering Subsea Gas Compression Offshore Norway The world’s first full-scale subsea gas compression system is the final stages of construction and is on schedule to be installed in the Åsgard gas field offshore Norway by year’s end.
Integrated Well-Test Strategy in Unconventional Tight Gas Reservoirs Tight gas reservoirs and shale gas reservoirs are economically viable hydrocarbon prospects that have proved to be successful in North America. In such reservoirs, established methods of well testing and data analysis are often impractical. This paper presents an integrated well-test program developed for a tight gas reservoir in southwestern China. The program, designed and … Continue reading Integrated Well-Test Strategy in Unconventional Tight Gas Reservoirs
New Techniques in Interpretation of Closure Pressure in the Montney Formation The Montney formation in Canada is one of the largest resource plays in North America. Horizontal multistaged fracturing is the best method for developing this vast resource. Before hydraulic fracturing of the wellbore, the toe stage is frequently minifractured to obtain reservoir and geomechanical properties. Various pressure-transient-analysis (PTA) -based interpretation techniques have been introduced to … Continue reading New Techniques in Interpretation of Closure Pressure in the Montney Formation
Pressure-Transient Testing of Low-Permeability Multiple-Fracture Horizontal Wells A common well-completion configuration for shale-gas wells is a horizontal well with multiple transverse hydraulic fractures. This configuration is becoming common for tight gas reservoirs. Pressure-transient testing of this completion configuration has not been considered practical or useful because extracting completion parameters (e.g., fracture conductivity and fracture half-length) from the recorded response requires estimating the effective … Continue reading Pressure-Transient Testing of Low-Permeability Multiple-Fracture Horizontal Wells
Nanotechnology Applications for Challenges in Egypt Precise manipulation and control of matter at dimensions of 1–100 nm have transformed many industries including the oil and gas industry. Nanosensors enhance the resolution of subsurface imaging, leading to advanced field-characterization techniques. Nanotechnology could greatly enhance oil recovery by use of molecular modification and by manipulating interfacial characteristics. Egypt’s oil consumption has grown by more … Continue reading Nanotechnology Applications for Challenges in Egypt
High-Performance Water-Based Drilling Fluids Offshore Cameroon Historically, invert-emulsion drilling fluids are the preferred system for drilling offshore Cameroon. However, with a regulatory environment moving toward zero discharge, associated costs are rising. Therefore, an operator planning to drill in this environment investigated high-performance water-based-mud (HPWBM) system alternatives. HPWBM systems offer the potential advantage of offshore discharge of drilled cuttings and effluents (owing … Continue reading High-Performance Water-Based Drilling Fluids Offshore Cameroon
Application of a Nanofluid for Asphaltene Inhibition in Colombia This paper describes the evaluation of a nanofluid containing nanomaterials with high adsorption capacity used for asphaltene inhibition in the volatile Cupiagua Sur oil field in Colombia. Asphaltene precipitation has been identified as one of the most potentially damaging mechanisms affecting this field’s productivity. The goal of the injection of nanofluids containing nanoparticles of alumina with high … Continue reading Application of a Nanofluid for Asphaltene Inhibition in Colombia
Offshore Facilities Ian G. Ball, SPE, Technology Advisor and Project Manager, Intecsea
In recent years, an unprecedented upsurge in offshore field-development activity has been driven largely by the corresponding sustained surge in oil price on world markets.
Turret-Mooring-System Experience and Enhancements in the Atlantic Frontier The Schiehallion floating production, storage, and offloading vessel (FPSO) is moored by a turret-mooring system (TMS) located in a water depth of 400 m in the Atlantic in very challenging environmental conditions. The Schiehallion FPSO went onstream in 1998. As part of the planned field development, the Quad 204 FPSO currently under construction will replace … Continue reading Turret-Mooring-System Experience and Enhancements in the Atlantic Frontier
Deepwater Floating Production Systems in Harsh Environments Offshore Norway Deepwater field developments are regarded as standard technology in several areas of the world, but in harsher environments, extreme design loads and increased fatigue loading become more challenging. In particular, risers and mooring solutions are vulnerable to loading conditions in harsh environments. Development solutions that work well in more-benign environments may not work as required … Continue reading Deepwater Floating Production Systems in Harsh Environments Offshore Norway
Offshore Dry-Docking of FPSOs The large number of floating production, storage, and offloading units (FPSOs) commissioned more than a decade ago now require offshore-asset-integrity management and maintenance. The FPSOs were originally designed for continuous service for periods up to 25 years. However, although designed to strict criteria, structural and hull-maintenance shortcomings have become apparent, prompting remedial actions or extensive … Continue reading Offshore Dry-Docking of FPSOs
Re-Engineering and Upgrade of a Semiautomated 3,000-hp Drilling Rig In 2011, the Kuwait Oil Company (KOC) considered enhancement of equipment specifications for deep drilling rigs to integrate state-of-the-art technologies. UPDC Rig 776 was the first to be upgraded, and this work was handled as an integrated project by the rig contractor working closely with the field operator. With regard to the rig design, major changes were … Continue reading Re-Engineering and Upgrade of a Semiautomated 3,000-hp Drilling Rig
ECD-Management Strategy Solves Lost Circulation Issues Drilling horizontal infill wells in the Pierce field in the UK central North Sea is challenging because of a narrow drilling window caused by depletion in a highly fractured reservoir. Wellbore strengthening was attempted in the reservoir section of Pierce B5 although, when a pre-existing fracture further weakened by depletion was encountered, losses occurred. A … Continue reading ECD-Management Strategy Solves Lost Circulation Issues
Annular-Pressure Losses While Casing Drilling Casing drilling is a method by which the well is drilled and cased simultaneously. The small annulus from casing drilling can create a controllable dynamic equivalent circulating density (ECD). Casing-drilling technology enables obtaining the same ECD as with conventional drilling but with a lower (optimized) flow rate and lower rheological properties and mud weight. Frictional … Continue reading Annular-Pressure Losses While Casing Drilling
Managed-Pressure Drilling – A Solution for Challenging Wells in Vietnam Managed-pressure drilling (MPD) has been used in Vietnam since 2007 to address a number of drilling and reservoir challenges. The main application of MPD has been to overcome the challenges of granite-basement, fractured and vugular carbonate, high-pressure/high-temperature (HP/HT), and overpressured clastic reservoirs. This paper examines the procedural approaches of MPD, including constant bottomhole pressure (CBHP), … Continue reading Managed-Pressure Drilling – A Solution for Challenging Wells in Vietnam