Wireline Open Hole Services
The more you understand your reservoir, the better positioned you are to manage its lifetime performance. Schlumberger offer a full range of formation evaluation services to accurately characterize reservoir rocks and fluids.
Start with the big picture of your reservoir: the DeepLook-EM crosswell EM system directly measures resistivity in the reservoir between wells up to 1,000 m [3,280 ft] apart, depending on well and reservoir conditions. You'll be able to better understand fluid distribution and predict movement to monitor fluid fronts, identify bypassed pay, and optimize reservoir simulation.
Oilfields around the world are aging, driving an increasing need to evaluate old wells. Schlumberger evaluation services for cased wells include measurements that until recently were available only in openhole environments. Production logging, cement and corrosion evaluation, and nuclear measurements made after casing has been set are increasingly used to identify problems and monitor well performance. The comprehensive Schlumberger line of production services is engineered for safety, reliability, and performance. New perforation systems have also been developed with a focus on maximizing production.
Whether open hole or cased, as well geometries have become increasingly complex, conveyance techniques for logging tools have kept pace. Most logging tools can now be conveyed on drillpipe, coiled tubing, or wireline tractors to address a wide range of well conditions.
A series of advances in downhole measurements that overcome many conventional limitations in the ability to measure and understand the subsurface.
In one trip, measure pressure, temperature, and other properties in real time to conduct downhole fluid analysis for timely decisions.
Accurately characterizing the reservoir requires petrophysical measurements, such as resistivity, neutron, density, sonic, and NMR.
Obtain microresistivity formation images with borehole imaging services for both water-base and nonconductive muds.
High-resolution seismic images around the borehole.
Evaluate borehole geometry, monitor compaction, free stuck assemblies, log while fishing, and other specialty applications.
Today, more than ever, an improved knowledge of the subsurface is essential to reduce risk and uncertainty and to optimize the productive life of every field.
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