Unconventional Resources

Case Study: Summit ESP® Successfully Replaces Rod Lift System

Multi-technology solution generates USD 1.4 Million in revenue for operator in just six months Challenge – Rod lift systems have their own challenges, especially in extreme conditions with excessive gas and high depths. Gas is compressed within the pump itself before actually producing liquid. Solids fallback is also an issue, particularly in the Bakken formation. The client had wells with pump set depth...

Case Study: RapidStart® Initiator CT Sleeve Helps Seneca Resources Pump an Extra Frac Stage

Single toe sleeve increases return on investment Challenge – In horizontal wells, a toe sleeve is used to provide the necessary access from the wellbore to the formation at the toe of the well. Communication between the wellbore and the formation is needed to provide a flow path that will allow displacing either frac plugs and/or frac balls downhole so that multistage fracturing...

Tech Paper: Saturated Salt and Diesel Emulsion Fluid Reduces Drilling Costs in New Mexico

Direct emulsion water-based drilling mud system helps operator overcome challenges In the Delaware Basin of New Mexico, shallower formations, such as the Salado, include halite and anhydrite layers followed by weaker formations in the Delaware Sands- (e.g., the Brushy Canyon). The fracture gradient difference between these two zones has typically required an intermediate casing string to seal off salt formations before reducing fluid...

Tech Paper: Redevelopment of an Unconventional Oil Reservoir: Finding Unstimulated and Bypassed Reservoir Volume

Increasing oil production in a tight carbonate formation through re-stimulation opportunities This paper identifies re-stimulation opportunities in existing horizontal wells with existing multistage hydraulic fracturing to increase oil production in a tight carbonate formation, offshore Black Sea. Pilot candidates were screened and ranked through the following decision criteria described in this paper, coupling reservoir, production and completion parameters. Favorable pilot candidates were verified...

Case Study: Halliburton Enters Conventional Liner Hanger Market on Sinclair Well

First MatchSet™ system is successfully installed in highly deviated horizontal application Challenge – The customer had limited operations in the Williston Basin, and was faced with the complexity of a highly deviated horizontal well with a sidetrack. It needed a hanger with a modular design that could handle long and heavy liners with minimal stress to the parent casing. The MatchSet™ conventional liner...

Case Study: BaraShale™ Lite Fluid Enables Sustained Success of Unconventionals in Low-Cost Oil Environment

New water-based fluid system helps operators save time and reduce costs Challenge – With its unconventional field developments, the outstanding success of the Permian Basin as a global oil and gas swing producer has been sustained by operators and service companies using innovative technologies and cost-efficient operational practices. Overlying much of the hydrocarbon-rich Delaware Basin – the western province of the Permian Basin...

Tech Paper: Wellbore Placement in the Middle Bakken Formation Using an Azimuthal Gamma-Ray Measurement

Identify shearing or faulting early using an azimuthally sensitive natural gamma-ray tool The Bakken formation is a large, unconventional resource located in North Dakota. Horizontal wells are drilled from pads at tight spacings, and placement within the target formation is critical to ultimate recovery rates. Geologic placement is established by evaluating the natural gamma-ray tool response and comparing it to a representative gamma-ray...

Case Study: SentinelCem™ Cement Cures Losses in Iraq Wells

Cement treatment saves operators millions of dollars annually Challenge – For years, operators drilling in the Rumaila, Zubair, and West Qurna fields in southern Iraq have routinely experienced severe and even total circulation losses at depths of 450–750 meters (1,476–2,461 feet). Underlying these fields is the karstified dolomite of the Dammam Formation, which has geological characteristics that include caverns, vugs, and large fractures....

Case Study: Operator Achieves More Reservoir Insight Using a New Azimuthal Gamma Ray Service

Azimuthal gamma-ray images uncover stratigraphic features in a seemingly featureless unconventional reservoir Challenge – Unconventional resources are often costly to produce as a result of the need for hydraulic fracturing. In order for these shale plays to be considered economical, drilling costs must be kept to a minimum, and many operators drill and geosteer wells with only average gamma-ray measurements obtained from a...

Tech Paper: Mapping the Bakken with Azimuthal Gamma Ray

New, cost-effective measurement allows for better unconventional well placement in difficult-to-interpret situations This paper defines current geosteering practices in the Middle Bakken formation using conventional gamma-ray detectors and discusses the use of a new azimuthally sensitive gamma-ray sensor for more accurate well placement in the target formation. Two wells were drilled in the Middle Bakken formation using both a conventional gamma-ray detector and a...

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