Energy Policy Act of 2005 (Ultra-deepwater and Unconventional Resources Program)
Novel Concepts for Unconventional Gas Development in Shales, Tight Sands and Coalbeds
Carter Technologies Company, Sugarland, TX 77478
M-I LLC (a Smith/Schlumberger Company), Houston, TX 77072
University of Oklahoma, Norman, OK 73072
Texas A&M University, College Station, TX 77843
The project objective is to prepare a preliminary study of novel methods of formation stimulation to increase the production of large amounts of gas in shale, coal, and tight sandstone formations. This is a preliminary study of novel concepts for the development of unconventional gas resources that differ significantly from the traditional drilling and stimulation methodologies.
Methods of mechanically or hydraulically cutting large infiltration galleries connected to the well bore will be evaluated and numerically modeled. These slots are similar to steerable fractures only larger. The best concepts will be integrated with advanced fracture propagation and propping concepts for form a hybrid stimulation technique. Concept and design drawings will be prepared and cost estimates developed.
The project will perform new creative design work based on the principal investigator’s work in cutting underground pathways and modifying formation permeability. The work will utilize patented and public domain concepts as well as novel methods developed by the principal investigator. Microsoft Excel computer modeling tools will be used to evaluate mechanical and hydraulic slot cutting friction loads and economic size in various formations. The project covers early-stage conceptual studies and does do not involve field or laboratory work in the current phase.
The proposed methods do not rely on detailed knowledge of the natural fracture systems and therefore may be applicable to formations with limited data. If successful, this project will allow more efficient drainage fields with higher recovery rates.
Principal Investigator: Ernest Carter