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A new stimulation technique that promotes the creation of hydraulic fractures through perforations that may have been ineffectively stimulated is helping to improve productivity in unconventional reservoirs. Engineers perform at least two fracturing treatments in an interval; the treatments are separated by a fluid containing a degradable diverting agent.
For almost a century, wireline logging has been essential to petrophysical data acquisition. Although new wireline technologies continue to be developed, the basic logging cable design has remained relatively unchanged for decades. Schlumberger engineers recently introduced significant enhancements to cable design.
The oil industry is drilling and completing wells in extreme water depths and to very deep drilling depths. Geologic and mechanical complexities, remote locations and new regulatory requirements combine to create a working environment in which teamwork and technology are crucial for success.
Bioturbation is the disturbance of sediments or soil by living organisms. Petroleum geologists use bioturbation to recognize key sequence stratigraphic surfaces and infer characteristics of the depositional environment. Bioturbation often affects porosity and permeability.
Defining Intervention, Upstream Maintenance and Repair
The Defining Series—concise, authoritative 2-page summaries of E&P fundamentals.