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Title: Applicability of petroleum horizontal drilling technology to hazardous waste site characterization and remediation

Horizontal wells have the potential to become an important tool for use in characterization, remediation and monitoring operations at hazardous waste disposal, chemical manufacturing, refining and other sites where subsurface pollution may develop from operations or spills. Subsurface pollution of groundwater aquifers can occur at these sites by leakage of surface disposal ponds, surface storage tanks, underground storage tanks (UST), subsurface pipelines or leakage from surface operations. Characterization and remediation of aquifers at or near these sites requires drilling operations that are typically shallow, less than 500-feet in depth. Due to the shallow nature of polluted aquifers, waste site subsurface geologic formations frequently consist of unconsolidated materials. Fractured, jointed and/or layered high compressive strength formations or compacted caliche type formations can also be encountered. Some formations are unsaturated and have pore spaces that are only partially filled with water. Completely saturated underpressured aquifers may be encountered in areas where the static ground water levels are well below the ground surface. Each of these subsurface conditions can complicate the drilling and completion of wells needed for monitoring, characterization and remediation activities. This report describes some of the equipment that is available from petroleum drilling operations that has direct application to groundwatermore » characterization and remediation activities. A brief discussion of petroleum directional and horizontal well drilling methodologies is given to allow the reader to gain an understanding of the equipment needed to drill and complete horizontal wells. Equipment used in river crossing drilling technology is also discussed. The final portion of this report is a description of the drilling equipment available and how it can be applied to groundwater characterization and remediation activities.« less
Authors:
Publication Date:
OSTI Identifier:
6240330
Report Number(s):
LBL-33957
ON: DE93015270
DOE Contract Number:
AC03-76SF00098
Resource Type:
Technical Report
Research Org:
Lawrence Berkeley Lab., CA (United States)
Sponsoring Org:
DOE; USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 47 OTHER INSTRUMENTATION; DIRECTIONAL DRILLING; TECHNOLOGY ASSESSMENT; LAND POLLUTION; REMEDIAL ACTION; SITE CHARACTERIZATION; AQUIFERS; DRILLING EQUIPMENT; GROUND WATER; HAZARDOUS MATERIALS; PETROLEUM; SAMPLING; UNDERGROUND STORAGE; WASTE DISPOSAL; WELL DRILLING; DRILLING; ENERGY SOURCES; EQUIPMENT; FOSSIL FUELS; FUELS; HYDROGEN COMPOUNDS; MANAGEMENT; MATERIALS; OXYGEN COMPOUNDS; POLLUTION; STORAGE; WASTE MANAGEMENT; WATER 540250* -- Environment, Terrestrial-- Site Resource & Use Studies-- (1990-); 440400 -- Well Logging Instrumentation