You may have heard of our expertise in the following areas:

Stimulation of Ductile Formations - using non-invasive fluids for enhanced oil and gas recovery, geological carbon energy storage and geothermal energy
Thermal Enhanced Oil Recovery - using steam or electric resistive heating
Arctic Offshore - sea ice impacts on structures, vessels, subsea completions and pipelines
Soil and Groundwater Remediation - subsurface permeable reactive barriers, in situ thermal destruction of contaminants
Software - simulation of geomaterials and geofluids for petroleum, energy and environmental applications from pore to basin scale

Stimulation of Ductile Formations: Enhanced oil and gas recovery of tight ductile reservoir formations. Multiple azimuth inclusions installed by well stimulation technology requiring frac initiation to enable successful hydraulic fracturing of ductile formations using non-invasive fluids. GeoSierra`s geomechanics knowledge base provides design requirements for the stimulation solution based on formation geomechanical properties. GeoSierra`s experience, expertise and knowledge base of formation properties enables GeoSierra to provide stimulation design and execution guidance. Without this experience and knowledge base an operator is blind on how to design and execute a hydraulic fracturing stimulation in a ductile formation.

Attempting to hydraulically fracture a ductile formation conventionally through perforations, typically results in a fracture not being initiated, and either results in the formation of a cavity expansion in a weak formation, or a short horizontal inclusion, contrary to the prevailing stress state, in a stronger formation. Conventional hydraulic fracturing of these ductile formations does not excite the least energy dissipating mechanism, and often results in zero enhancement of well productivity.

GeoSierra has special stimulation casing systems and downhole stimulation tools, and using non-invasive fluids can place a vertical planar inclusion in these ductile formations from either a vertical or horizontal well. Retrofit stimulation systems for existing wells will be available in mid 2015. This technology is not depth limited.

Subsurface Barriers: GeoSierra has pioneered the installation of trenchless subsurface permeable reactive barriers (PRBs) for groundwater remediation and has installed miles of PRBs at >20 sites throughout the USA. The same technology is used to create a subsurface impermeable barrier, as a freeze wall, or impermeable by grout injection or the injection of a special swellable proppant. The imperable barrier can provide containment of hazardous wastes or as a fluid loss barrier for thermal enhanced oil recovery (EOR) using steam, such as in SAGD (Stream Assisted Gravity Drainage) operations. Visit our USA environmental PRB sublicensee at www.geosierraenv.com for information and costing of a PRB in the USA. Active resistivity monitoring during real time as the PRB installation proceeds, ensures the PRB is constructed as designed. To view how we construct subsurface PRBs see our Video or view ourCase_Studies. For a list of volatile organic compounds destroyed by a zero valent iron PRB and metals precipitated amd immobilized see VOCs_Metals.

Environment