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.

Can an anionic polymer withstand drilling fluid?

The fluid loss test on this drilling system found that anionic polymer can resist about 4.5 × 105 ppm of Cl −, 4 × 105 ppm of Ca 2+, and 1.5 × 104 ppm of Mg 2+ at low pH by adding the acidic gas together at 180 °C. Thus, it can withstand the temperature of drilling fluid up to 180 °C.

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.

What is the thermal conductivity of polyacrylamide based drilling fluid?

It showed thermal conductivity around 0.9 Wm −1 K −1 that have 84% improvement when compared to the bare polyacrylamide. Study of filtration and rheological properties in polyacrylamide-based drilling fluid using graphene oxide

Does barite/polyacrylamide nanocomposite affect water-based drilling fluid?

Roodbari and Sabbaghi (2021) studied the effect of barite/polyacrylamide nanocomposite in the water-based drilling fluid, which showed the incline of its fluid viscosity and the reduction of fluid loss and filter cake thickness. Besides, Kuma et al. (2020) optimised the polyacrylamide-based drilling fluid with the inclusion of hematite.

Can hydrophobically modified polyacrylamide gel be used in high temperature drilling?

Enhanced hydrophobically modified polyacrylamide gel for lost circulation treatment in high temperature drilling J. Mol. Liq., 325 ( 2021), p. 115155, 10.1016/j.molliq.2020.115155 Rheological properties of bentonite-free water-based drilling fluids with novel polymer viscosifier J. Petrol. Sci.