skip to main content

Title: Crosswell Imaging Technology & Advanced DSR Navigation for Horizontal Directional Drilling

The objective of Phase II is to develop and demonstrate real-time measurement-while-drilling (MWD) for guidance and navigation of drill strings during horizontal drilling operations applicable to both short and long holes. The end product of Phase II is a functional drill-string assembly outfitted with a commercial version of Drill String Radar (DSR). Project Objectives Develop and demonstrate a dual-phase methodology of in-seam drilling, imaging, and structure confirmation. This methodology, illustrated in Figure 1, includes: (1) Using RIM to image between drill holes for seam thickness estimates and in-seam structures detection. Completed, February 2005; and (2) Using DSR for real-time MWD guidance and navigation of drillstrings during horizontal drilling operations. Completed, November 2008. As of November 2008, the Phase II portion of Contract DE-FC26-04NT42085 is about 99% complete, including milestones and tasks original outlined as Phase II work. The one percent deficiency results from MSHA-related approvals which have yet to be granted (at the time of reporting). These approvals are pending and are do not negatively impact the scope of work or project objectives.
Authors:
Publication Date:
OSTI Identifier:
973559
DOE Contract Number:
FC26-04NT42085
Resource Type:
Technical Report
Research Org:
Stolar Research Corporation
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; BOREHOLES; DETECTION; DIRECTIONAL DRILLING; DRILLING; FUNCTIONALS; MWD SYSTEMS; NAVIGATION; RADAR; THICKNESS