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International Experience

Environmental Impact Study for Petroleum Operation, Bolivia

WALSH used existing information to write an Environmental Impact Assessment for a wildcat well that was to be drilled in the tropical rainforest of Bolivia. Due to a short time frame, WALSH completed the project in Tarapoa in days, working in the client's office in La Paz to use all available information.

Environmental Impact Study for Petroleum Operation, Argentina

WALSH prepared an Enviromental Impact Assessment (EIA) for a wildcat well in the Province of San Luis, Argentina. WALSH studied the environmental baseline, developed a description of the project and made recommendations to minimize impacts to the environment in this region of cattle ranches. 

Environmental Inpact Study & Environmental Monitoring Program for Seismic, Peru

WALSH conducted an EIA for Mobil and worte an EMP for a seismic acquisition program in Block 78 in the Madre de Dios region in Peru. In conducting the EIA, WALSH assessed the ecology, geology, geomorphology, meteorology, soil, water, air and water quality and analyzed vegetation, fauna, land use, as well as archaeological and socio-economic conditions. The EMP presented a rigorous program to minimize damage during seismis acquisition activities. In addition to writing the EIA and EMP, WALSH conducted environmental monitoring of the seismic contractor. Walsh also provided training and guidance to the staff of the geophysics.

Environmental Assessment of Discharging Produced Water, Australia

WALSH evaluated for a U.S. oil consortium operating in Queensland, Australia, the potential environmental impacts associated with the discharge of produced water to the atmosphere in an area of oil production. WALSH reviewed data from water samples and native soils along with climate data of Queensland. WALSH provided recomendations for practices to mitigate the harmful effects of pumping water to high salinity, sodium compounds to the local soils. These practices include the use of evaporation ponds for salt recovery using gypsum or sulfur corrections or removal to a permanent disposal facility. Other options mentioned included the use of percolation ponds and reinjection of produced water.

Consulting Services for Discharging Produced Water, Columbia

WALSH provided consulting services to a U.S. oil company which facilities for the extraction of 200,000 barrels of oil and gas per day in the northeastern region of Colombia. WALSH evaluated the alternatives for the control and treatment of 250 pounds of phenols contained in approximately 30 million gallons of daily discharge produced water into surface waters near the facilities. WALSH evaluated chemical oxidation, biological oxidation by microbes and physical treatment technologies for removal of phenols, hydrocarbons, and oil and grease in wastewater to comply with water standards based on the toxicity estringente. Walsh also mentioned the design of plant operational changes to reduce the amount of pollutants requiring treatment.

Remote Sensing for Environmental Audit, Oil Field, China

WALSH provided technical support for remote sensing, including the interpretation of Landsat immaging and soil testing for the audit of an oil field in the Shonqdong Province, China. WALSH's client is entered into an oil assets production sharing agreement for this area of 550 km2 which produces 20,000 bpd.

 
   
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