This research has two main components. The first component addresses the evolution of mud flows (i.e. dense gravity currents) on submarine slopes, with the goal of developing the capabilities to predict the velocity, thickness, and run-out distance of mud flows. The second component of the research involves experiments on non-channelized turbidity currents (i.e. dilute density currents) and the...

A systematic study on the effect of electrostatic double layer interaction on permeate flux decline and deposit cake formation in crossflow membrane filtration of colloidal suspensions is reported. Three monodisperse silica suspensions with diameters of 47, 110, and 310 nm were used as model colloids, and a tubular zirconia membrane with an average pore diameter of 20 nm was used as a model mem...

Abstract Shale instability is a significant problem, accounting for approximately 70% of wellbore challenges during drilling operations. To address this issue, shale inhibitors are commonly added to mud stabilize the encountered formations. Ionic liquids and deep eutectic solvents have been recognized as effective due their environmental friendliness effectiveness. However, despite advantages, ...

Abstract The mud cake is easily formed during the tunnel boring machine (TBM) excavation in clay soils or rocks containing minerals. Mud will lead to soil disturbance of face, clogging cutterhead and even affect construction efficiency personnel safety. In this study, a discrimination method formation based on temperature was proposed. An online monitoring system designed installed slurry balan...

OBJECTIVE The aim was to evaluate carcass characteristics, cut yield, and meat quality in lambs that were fed different inclusion levels of palm kernel cake. METHODS Forty-five woolless castrated male Santa Inês crossbred sheep with an initial average body weight of 23.16±0.35 kg were used. The experimental design was a completely randomized design with five treatments, with palm kernel cake ...

Drilling boreholes in gas zones and with the possibility of migration or exhalation requires a high index well tightness. An important parameter determining effectiveness sealing annular space is adhesion cement sheath to rock formation. Low values formation casing surface result uncontrolled flows. The lack also reduces stabilization pipe column. To obtain required adhesion, should be properly...

Designing an effective drilling mud is a critical aspect of the process. A well-designed should not only provide efficient hydraulics but also fulfill three important functions: enhancing rheology, inhibiting hydrate formation in deepwater drilling, and suppressing shale swelling when through formations. Achieving these functions often requires use various additives, additives are expensive, no...