DELINEATING THE GEOTHERMAL STRUCTURE AND FLOW PROPERTIES IN A SUB-HORIZONTAL WELL WITH THE USE OF WIRELINE AND LWD DATA IN A MULTIPHYSICS APPROACH (SPWLA-5065)
Authors : Erik Wielemaker, Chiara Cavalleri, Leon Dahlhaus, Alejandra Reynaldos and Giovanni Sosio, Schlumberger, Pierre Ungemach, Miklos Antics and Melanie Davaux, Geofluid
SPEAKER: Erik Wielemaker, Schlumberger
Speaker Bio: Erik Wielemaker is a Principal Acoustic Domain Champion for the Eastern Hemisphere with the Wireline product line of Schlumberger, based in The Hague. He holds an MSc in Geophysics from the University of Utrecht, The Netherlands. He joined Schlumberger in 1997.
Abstract:
Geothermal projects are rapidly developing in Continental Europe to provide an alternative energy source. These projects typically involve a doublet of a producer and injector well, which are typically vertical wells drilled with minimal measurement technology. We discuss how advanced wireline measurements guided the decision making for completion strategy in a subhorizontal geothermal well in the suburbs of Paris, France, which at the time was a world premiere in geothermal well design. In addition, we will describe how these measurements aided understanding of the overall structural model. The project provided a 150% increase in geothermal productive/injective capacity vs. previous conventional approaches.
The study was conducted in the Cachan project in the Paris Basin, which was developed to provide a city on the outskirts of Paris with geothermal heat. The project targets thin porous oolitic layers within a dolomite formation as an excellent geothermal target to produce from. The well was geosteered with Logging While Drilling (LWD) density images after which wireline Nuclear Magnetic Resonance (NMR) and dipole sonic measurement tools were operationally efficiently conveyed on tractor throughout the long horizontal drain section.
There are two identical sessions:
Thursday, November 12th
1st Morning Session: 3am – 4am US Central Time.
2nd Morning Session: 10am – 11am US Central Time.
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