Non-invasive cement spacer fluid compositions, spacer fluid products, methods of well operation and well apparatus

Abstract

Spacer compositions and products may include a biopolymer component, a plant fiber component, and a weighting agent component, and in further non-limiting embodiments may include xanthan gum, a blend of plant fibers, and a weighting agent component. These spacer compositions and spacer products may be utilized in well fluid operations, including well cementing operations and well completion operations.

1 . A well operation spacer composition comprising:
 a polymeric component;   a fiber component; and,   a weighting agent component.   
     
     
         2 . The spacer composition of  claim 1 , wherein the polymeric component comprises a biopolymer, and the fiber component comprises plant fiber component. 
     
     
         3 . The spacer composition of  claim 2 , wherein the biopolymer comprises a polysaccharide. 
     
     
         4 . A well operation fluid comprising
 an aqueous component;   a polymeric component;   a fiber component; and,   a weighting agent component.   
     
     
         5 . The fluid of  claim 4 , wherein the polymer component comprises biopolymer, and the fiber component comprises plant fiber. 
     
     
         6 . The fluid of  claim 5 , wherein the biopolymer comprises polysaccharide, and the plant fiber component comprises a plant fiber blend. 
     
     
         7 . A well comprising a fluid in the wellbore, the fluid comprising:
 an aqueous component;   a polymeric component;   a fiber component; and,   a weighting agent component.   
     
     
         8 . A well of  claim 7 , wherein the polymer comprises a biopolymer, and the fiber comprises plant fiber. 
     
     
         9 . The well of  claim 8 , wherein the biopolymer comprises polysaccharide and the plant fiber comprises a plant fiber blend.