The purpose of this review is to summarize and discuss the recent developments in
exploring cellulose and its derivatives in the applications of oilfield chemicals for petroleum …

Aiming at the problem that the oil well cement slurry is easy to settle and lose its stability
under high temperature environment, and combining with the characteristics of traditional …

Cellulose-based polymers have been successfully used in many areas of petroleum
engineering especially in enhanced oil recovery drilling fluid, fracturing and cementing. This …

A high molecular weight copolymer consisting of 2-acrylamido-2-tert butyl sulfonic acid
(ATBS) and N, N-dimethyl acrylamide (NNDMA) was encapsulated in a natural rubber latex …

The applications of cellulose ethers in the petroleum industry represent various limitations in
maintaining their rheological properties with an increase in both concentration and …

For well cementing at temperatures above 120° C, thermal thinning depicts a major problem,
promoting particle sedimentation via decreasing slurry viscosities. This is partly caused by …

Common cement retarders effective at high temperatures (> 150℃) typically also disperse
cement. Consequently, they provide a rheology which allows to easily mix the slurry at …

This study introduces a novel blocking agent composed of polymerized hydrophobic
particles to address the challenge of sealing formations with heterogeneous permeability …

A stable cement slurry is critical to the success of a cementing job, from cement placement to
long-term zonal isolation. Conventional anti-settling (AS) additives, such as clays and …

Bei der Tiefbohrzementierung treten im Bohrloch hohe Temperaturen auf. Diese führen zu
einer starken Abnahme der Viskosität der Zementschlämme. Infolgedessen setzen sich die …