Physical Sciences and Mathematics Commons^™

Numerical Modeling Of Time-Lapse Seismic Experiments To Monitor Co2 Sequestration In A Layered Basalt Reservoir, Murari Khatiwada

Boise State University Theses and Dissertations

Instead of allowing carbon dioxide (CO₂) generated from the burning of hydrocarbons to escape into the atmosphere, CO₂ can be captured and stored. For the long term mitigation of the increasing amount of CO₂ emissions, its sequestration in geological formations is promising. As a measure, its short and long term monitoring is equally important for environmental and health safety issues. The seismic method is proposed as a non-invasive monitoring technique for geological sequestration of CO₂. Based on the positive results obtained from reservoir monitoring during enhanced oil recovery with CO₂ floods, geoscientists plan …

A Geologic And Hydrochemical Investigation Of The Suitability Of Central Utah's Navajo Sandstone For The Disposal Of Saline Process Water And Co2, Kevin L. Randall

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Salt water is produced from the Ferron Sandstone Member of the Mancos Shale in central Utah as part of the production of coalbed methane (CBM) and is disposed of by injection predominantly into the Navajo Sandstone between 4,500 feet to 7,300 feet and is considered to be a hazardous waste. Local government agencies are concerned about the potential impacts on shallow groundwater because of this disposal method.

Water samples were gathered from four shallow water-supply wells, and nine salt water disposal (SWD) wells to compare hydrochemistries as an indicator of potential mixing. Shallow water-supply wells are likely recharged by local …