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Title: Chemical characterization of CMC and its relationship to drilling-mud rheology and fluid loss

Journal Article · · SPE Drilling Engineering (Society of Petroleum Engineers); (United States)
OSTI ID:5912596
; ;  [1]
  1. Schlumberger Cambridge Research, Cambridge (United Kingdom)

Four carboxymethyl cellulose (CMC) polymers were characterized by molecular weight, degree of substitution, and intrinsic viscosity. These polymers were used to make simple water-based muds with various polymer and bentonite contents. API fluid loss and high shear viscosity were determined for each mud. Fluid loss is independent of polymer molecular weight at low ionic strength. The high shear viscosity of muds and polymer solutions is related to the product of the intrinsic viscosity of the polymer and its concentration.

OSTI ID:
5912596
Journal Information:
SPE Drilling Engineering (Society of Petroleum Engineers); (United States), Vol. 8:3; ISSN 0885-9744
Country of Publication:
United States
Language:
English