... remediation wax inhibition asphaltene remediation remediation of hydrates platform asphaltene inhibition deposition riser 32 scale remediation Production Chemistry Upstream Oil & Gas flowline dissolver calibration equation determination application deposit scale inhibition circulation...

.... fluid dynamics flow rate drilling fluid selection and formulation adsorption kinetic cd desorption circulation cd adsorption dolomite surfactant drilling fluids and materials cd concentration adsorption density drilling fluid property drilling fluid chemistry equilibrium flow in porous...

... Abstract A grouting system is being developed that is applicable to water shutoff, steam flooding, and high-temperature grouting/plugging for lost circulation. This grouting system uses silicate hydrates as the plugging material. We describe a means to introduce sodium silicate and an activator...

... produced a slight negative skin, and 6) The use of the surfactant pre-wash, followed by a mild HCl acid treatment produced the largest negative skin. The core faces of the acid washed samples did not show wormholes after circulation of the mild acid treatments. M-S was found to reduce the molecular weight...

... Abstract Massive lost circulation is a major and costly drilling problem. The drilling community needs a single fluid which can be pumped through the drill bit, curing losses instantly. This paper describes a novel shear-sensitive plugging fluid designed to gel rapidly after passing through...

... in southern Italy. In both wells, the use of ZrC strongly reduced the need for mud dilution, compared to previously drilled wells, and proved an effective means for stabilizing rheology during stopped circulation. On account of the sharply-reduced mud volumes required, use of ZrC reduced total fluid costs...

... Abstract We describe field tests carried out to show that salt tracers injected into the mud at the surface during drilling can be used to measure the extent of hydrodynamic dispersion during well-bore circulation. The results of one test using lithium bromide are described in detail, together...