Drilling fluid circulation loss is referred to as “the most severe problem in drilling of oil and
gas wells”, as a routine solution, loss circulation materials are added to fill any fractures and …

Immense oil and gas reserves exist in the deepwater of the South China Sea, and the first
priority for implementing successful drilling and completion operations without reservoir …

Lost circulation has been a serious problem while drilling that may lead to heavy financial
costs in the form of lost rig time and lost mud fluid. In severe cases, it can lead to well …

To keep the stability and integrity of wellbore, it is required to figure out the interaction
between clays, water and rock strength in the drilling process. As revealed in available …

Oil and gas operators worldwide are expecting service companies to deliver integrated
techniques to minimize, if not prevent, drilling problems. Drilling fluids perform vital functions …

The damage mechanism of fracturing fluids has always been the hot research topic in the
development of low-permeability reservoir with hydraulic fracturing. At present, the research …

Drilling fluids Invasion and mud filtration is a complex process that is influenced by several
variables, and has NPT (Non-Productive Time) implications. Most of these variables are …

Filtrate and solid invasion from drilling fluids are two key sources of formation damage, and
can result in formation permeability impairment. Typically, spurt invasion of mud solids …

Along with the development of the oil & gas industry, the word" fracture" is now a quite
familiar subject to well stability and integrity over the drilling process. However, the fracturing …

Flow of suspensions through the complex porous network is typically characterized by the
initial spurt and then the formation of internal/external filter cake which impedes the flow …