drilling mud

Polymer-FLR for Mud Fluid Loss Reduction

A fluid loss reducer polymer (polymer-FLR) was synthesized using acrylamide, hydroxyethyl methacrylate, N-vinyl pyrrolidone, and N,N-dimethyl acrylamide by free radical polymerization, followed by partial hydrolysis. Its composition was confirmed using FTIR and 1H NMR spectroscopy. API mud fluid loss reduction of polymerFLR was about 10-fold lower than the blank. High temperature, high pressure fluid loss reduction of about 9-fold were achieved compared with the blank.

Influence of the Technological Gap Value of the Tool-Joint Tapered Thread on the Drilling Mud Flow Rate in Its Screw Coupling

Tightness is one of the parameters of the quality of pipe drill string. Consequently, the reduction of hydraulic costs and wear of the tool-joint tapered thread of the drill string can be achieved by changing the cutting part of the cut tools.