TREATMENT METHODS FOR NAHCOLITIC OIL SHALE FORMATIONS WITH FRACTURES

TREATMENT METHODS FOR NAHCOLITIC OIL SHALE FORMATIONS WITH FRACTURES

A method for treating a hydrocarbon containing layer in a subsurface formation includes forming a plurality of substantially vertical fractures in the formation at selected intervals along a length of at least one production wellbore positioned substantially horizontally in the hydrocarbon containin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: FOWLER THOMAS DAVID
Format: Patent
Sprache:eng
Schlagworte:
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:A method for treating a hydrocarbon containing layer in a subsurface formation includes forming a plurality of substantially vertical fractures in the formation at selected intervals along a length of at least one production wellbore positioned substantially horizontally in the hydrocarbon containing layer. Heat is provided from a plurality of heaters to the hydrocarbon containing layer such that at least some hydrocarbons in the hydrocarbon containing layer are mobilized. At least some of the plurality of heaters are positioned substantially horizontally in the hydrocarbon containing layer. At least some mobilized hydrocarbons are produced through at least one production wellbore.