What is partially hydrolyzed polyacrylamide (PHPA) based high molecular weight drilling polymer?

Partially Hydrolyzed Polyacrylamide (PHPA) based high molecular weight drilling polymer for use in controlling of fluid loss and increasing drilling mud viscosity and removal of colloidal from deep drilling foundations such as diaphragm walls, piling concretes, etc.

Can polyacrylamide/clay nanocomposite be used as drilling fluid additive?

The troublesome shale formations need special formulation of drilling fluids having high shale inhibition characteristics to mitigate wellbore instability problems. In the present study, polyacrylamide/clay nanocomposite (PANC) was synthesized and used as drilling fluid additive.

Can polyacrylamide be used for drilling?

However, polyacrylamide with high molecular weight can be a good candidate at lower concentrations to meet the drilling requirements. The viscosity of polyacrylamide at all concentrations decreases with increasing temperature, according to Magzoub et al. (2021).

What is modified polyacrylamide drilling fluid?

Indeed, modified polyacrylamide drilling fluid has been proven to be of great interest for use in the construction of bored piles and diaphragm walls in recent years. 1. Introduction Drilling fluid is a critical component in exploration and excavation, classified into water-based, oil-based, synthetic-based, and gas-based.

How stable is silica in polyacrylamide based drilling fluid?

Kumar et al. (2020) studied the stability of silica in polyacrylamide-based drilling fluid with the saline environment. The result revealed a maximum pH value of 8 with 2 wt% of sodium dodecyl sulphate (SDS) in that drilling fluid maintained loading up to 3 wt% NaCl.

How is polyacrylamide/clay composite synthesized?

Polyacrylamide/clay composite was synthesized by free radical polymerization. Synthesized composite had good filtration control properties in drilling mud. High shale recovery was obtained with synthesized composite.