Tesleem Lawal

University of Texas at Austin | UT · Department of Petroleum & Geosystems Engineering

This paper presents an experimental study of aqueous nanobubble dispersion of carbon dioxide (CO2-NB) for enhanced oil recovery. CO2-NB was compared with brine and slightly supersaturated carbonated water (eCW) in corefloods with Berea sandstone cores and dead oil at room temperature. CO2-NB was also compared with a mixture of CO2 and brine with no...

Geological sequestration of carbon dioxide (CO2) is considered an important technology for mitigating the increasing level of atmospheric CO2. One of the most common methods for CO2 geological sequestration is to inject CO2 into depleted oil reservoirs, which recovers part of the remaining oil that has been unrecovered by simpler methods of oil rec...

Enhanced oil recovery (EOR) has been studied for high-salinity high-temperature (HSHT) carbonate reservoirs, but their thermodynamic conditions, brine chemistry, and petrophysical properties tend to pose various technical challenges for both gas- and chemical-based EOR. This paper presents an experimental study of aqueous solution of 3-pentanone fo...

The amount of gaseous species in water or brine can be greatly enhanced in the form of nanobubble (NB) dispersion. Aqueous NB dispersion has vast industrial applications, potentially in enhanced oil recovery (EOR) and carbon dioxide (CO2) sequestration to control the mobility of gaseous species and the geochemistry associated with CO2 dissolution....

The amount of gaseous species in water or brine can be greatly enhanced in the form of nanobubble (NB) dispersion. Aqueous NB dispersion has vast industrial applications, potentially in enhanced oil recovery and carbon dioxide (CO2) sequestration to control the mobility of gaseous species. Development of such NB technologies depends on a proper und...

Mud motor failure is a significant contributor to non-productive time in lower-cost land drilling operations, e.g. in North America. Typically, motor failure prevention methodologies range from re-designing or performing sophisticated analytical modeling of the motor power section, to modeling motor performance using high-frequency downhole measure...

Activity codes recorded by drillers are very useful for quantifying invisible lost time (ILT). However, classifying more than 100 activity codes accurately and consistently across various rig operations becomes infeasible for human operators. We propose an auto-suggestive system that guides the drillers to the correct codes based on memos they ente...