As the demand for hydrocarbons increases, the search frontiers for petroleum and natural
gas deposits keep being pushed towards unconventional terrains. An example of an …

During the drilling operations, drilling fluids invade the drilled formations which could cause
a plugging or permeability alteration in the reservoir zone and consequently additional cost …

Chelating agents show very effective performance in different applications in the upstream
oil and gas industry. This study presents a critical review of the application of chelating …

The removal of barite filter cake is a challenging problem because the conventional filter
cake removal treatments that use hydrochloric acid (HCl) or chelating agents were …

Novel conformance control and polymerflood applications that exploit the pH-sensitivity of
partially hydrolyzed polyacrylamide (HPAM) are proposed. The key feature of this process is …

Filter cake occurs intentionally during the drilling operations to prevent fluid losses to the
formation and allow good circulation for drilling fluids from the bottom hole to the surface …

Drilling fluids are designed to optimize the drilling performance and minimize the formation
damage. Various compositions can be used to prepare the drilling fluids depending on the …

Abstract Treatment of the filter cake layer after drilling is essential for better cement integrity
and to retain the original reservoir permeability. Compared to water-based filter cake, oil …

Long-term zonal isolation is crucial for the development of fossil hydrogen energy, while
efficient filter cake removal is the basis for successful zonal isolation. However, enhanced …

钻井液的密度对于地层的压力控制至关重要, 而流变性和沉降稳定性控制是高密度钻井液技术
存在的主要技术难点之一. 传统的加重材料, 例如API 重晶石在高密度钻井液中存在严重的沉降 …