Technical Papers

Tech Paper: Numerical Maximization of the Secondary Polymer Flooding Value in a Mature, Offshore, Heavy Oil Reservoir

Methodology helps improve the chances of finding the maximum net present value solution Successfully implementing polymer flooding and maximizing benefits requires selecting best options of variables such as polymer concentration and slug, and number and location of new wells. Option-decisions combined generate thousands of scenarios. Therefore, even using smart algorithm optimizers to efficiently find the maximum of a business objective mathematical function can be a very...

Tech Paper: Modeling Flow Profiles Using Production Log Temperature Data in Single and Multiphase Wells

Real-time multiphase flow monitoring proves valuable This paper presents the application of a method to determine a generalized wellbore-flow profile using predominantly fluid temperature data obtained through a platinum-resistance thermometer (PRT) tool. The method is advantageous, enabling the calculation of multiphase rates independently of spinner data, and it is based almost solely on temperature measurements, which are reliable and available with every production-logging string. The method...

Tech Paper: The Radial Approach to Safety Factors for Tubular Design

New radial safety factor can help assist well engineers with safer and more straightforward tubular design. Traditionally, collapse safety factor (SF) is the ratio of tubular collapse resistance to collapse load. The collapse resistance is usually calculated using formulas suggested in API 5C3 or ISO 10400. If the collapse load is very small while the tension stress and/or internal pressure are high, the collapse SF could...

Tech Paper: Study of Multilateral-Well-Construction Reliability

Examining 22 years of actual multilateral-well applications to determine true reliability Multilaterals are often cited as technology that can be implemented to maximize reservoir-recovery rates. However, few operators have been willing to put multilaterals into practice. The most frequently cited reason for not considering multilaterals is risk. Without access to data to show otherwise, it is difficult to overcome this industry perception of risk toward multilateral...

Tech Paper: Enhance Production by Infinite Conductivity Technique Applied in Tight Formations

Pulsed proppant fracturing process helps provide enhanced and sustained production over conventional treatments The infinite conductivity theory to enhance production was introduced to the industry around 1971. Exploration from the 1970s to the 1990s focused on high permeability formations. The unconventional reservoirs and tight formations were left behind until new technology could enable hydrocarbons to be produced in economical manner. Operators seek methods to both increase...

Tech Paper: Fast Track Well Planning Borneo

Malaysian operator uses collaborative well planning method in their first fast track drilling operation in deepwater This paper highlights the phenomenal achievement of a Malaysian operator’s first fast track drilling operation in a deepwater well offshore Borneo. The collaborative well planning (CWP) method fundamental to the drilling success is discussed. The discussed drilling environment is an overpressured deepwater area that has not only forced the earlier...

Tech Paper: High Performance Water-Based Mud HPWBM: Turning Old Ways into New Opportunities

Novel alternative fluid system helps reduce waste management cost for both onshore and offshore wells For decades, wells targeting the Rotliegend reservoir in the Southern North Sea Basin have been drilled using conventional water-based mud (WBM) in the top hole section and oil-based mud (OBM) systems throughout the remaining sections of the well. The standard well design generated high waste disposal costs onshore and offshore, particularly with...

Tech Paper: Field Application of an Innovative, Minimally Damaging Low-ECD Invert Emulsion Fluid for Drilling and Completion of HP/HT Wells: Update on Fluid Performance

Invert emulsion fluid helps operator save time and money while drilling on an HP/HT field Previous publication SPE-174176-MS discussed the development of a novel high-pressure/high-temperature (HP/HT) organophilic clay-free (OCF) invert emulsion fluid (IEF) for first use as a combined reservoir drilling fluid (RDF) and screen running fluid (SRF) for stand-alone screen (SAS) completions. The current paper details the continued application of this innovative fluid in a...

Tech Paper: Multilateral TAML-4 and -5 Junctions Provide Consistent Results for Arabian Gulf Operator

Successful implementation of multilateral technology expands the use of multilateral completions in the Middle East Since 1999, more than 120 wells in Saudi Arabia have been completed using multilateral technology (MLT). This paper will discuss case histories, associated technology improvements, and best practices in which dual-lateral completions, with and without pressure-isolated junctions (Technical Advancement of Multilaterals (TAML) levels 4 and 5), were developed and used to help ensure...

Tech Paper: Innovative Sidewall Pressure Coring Technology Improves Reservoir Insight in Multiple Applications

New tool helps eliminate the loss of important reservoir fluids during core recovery process Oil and gas exploration and development projects require reservoir properties that need to be evaluated to help ensure both economic and operational success. These reservoir properties include determination of the volume of original hydrocarbon in place, the residual hydrocarbon saturation after sustained production, and the reservoir drive mechanisms. Additionally, an accurate analysis...

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