drilling mud additives phpa viscosity improver in luxembourg

drilling mud additives phpa viscosity improver in luxembourg
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  • Does PHPA reduce mud viscosity?
  • The addition of 1.0 lbm/bbl [2.9 kg/m3] PHP A reduced the free water to the point that the mud viscosity was excessive. This same mud operating at 15.3lbm/gal [1830 kg/m3] exhibited a normal viscosity. In retrospect, PHPA should have been added in stages and allowed to circulate several times between each stage to avoid these excessive viscosities.
  • What is the technology of PHPA mud systems?
  • Although more is known from field applications about how practices, although more is known from field applications about how the products work and the systems behave, the technology of PHPA mud systems is still developing. Drilling of oil and gas wells always results in the incorporation of native clays into the mud system.
  • How does PHPA polymer affect rheological and fluid loss properties?
  • The enhanced rheological properties were attributed to the formation of strong hydrogen bonding network in the drilling fluid which also reduced the fluid loss and enhanced the pore connectivity in the filter cake to minimize the formation damage. (Kelessidis et al., 2013) studied the effect of PHPA polymer on rheological and fluid loss properties.
  • Why do mud formulations have low viscosities at high shear rates?
  • As shown in Fig. 9, the low viscosities at high shear rates indicate that not high pump pressure will be needed to pump the mud formulations, thereby preventing formation fracture.