RECYCLABLE LOW SOLID CONTENT MICRO-BUBBLE DRILLING FLUID OR COMPLETION FLUID

A recyclable low solid content micro-bubble drilling fluid or completion fluid is provided. By the parts of weight, the fluid comprises: ? recyclable micro-bubble low solid content composite treating agent SD-LGA 3-4; ? low-density low solid content tackifier SD-LGV 0.5-1; ? low-density regulator SD-LFD 0.5-1; ? low-density foam stabilizer SD-LFS 0.5-1; ? low-density flow-type regulator SD-LFR 0.5-1; ? clear water 100. The procedure of preparing the fluid comprises: adding the above-mentioned materials in accordance with composition and content in clear water successively at normal temperature and normal pressure by conventional preparation method, mixing and stirring uniformly. La présente invention concerne un fluide de complétion ou un fluide de forage recyclable à faible teneur en solides et à microbulles. En parties en poids, le fluide comprend : 1) un agent de traitement composite recyclable à faible teneur en solides et à microbulles SD-LGA, 3 à 4 ; 2) un agent donnant du collant à faible masse volumiq