Petroleum drilling fluid additives, HV-PAC, LV-PAC

Question: Should HV-PAC or LV-PAC be used as oil drilling fluid additive?

answer:

In common oil drilling processes, both HV-PAC and LV-PAC are used in drilling fluid additives.

HV-PAC and LV-PAC can play different roles in preparing petroleum drilling fluids.

The main advantages of high-viscosity polyanionic cellulose (HV-PAC) are its high viscosity and good rheological properties. It can increase the viscosity and density of drilling fluid, support the well wall, cool the drill bit, and bring out cuttings. In addition, it can effectively control the fluidity of drilling fluid and has good suspension and stability. During the drilling process, high-viscosity polyanionic cellulose can enhance the rock-carrying ability of drilling fluid and improve drilling efficiency.

The main advantage of low-viscosity polyanionic cellulose (LV-PAC) is that it can reduce the viscosity and viscosity of drilling fluids and has good dispersion and adsorption properties. This makes the drilling fluid more fluid, which is beneficial to improving drilling efficiency. It can also reduce drill bit wear and effectively prevent well wall erosion. During the drilling process, low-viscosity polyanionic cellulose can exert its excellent lubrication properties, reduce the loss of drilling equipment, and improve drilling efficiency.