APPLICATION AND COMPARISION ANALYSIS FOR BIPOLY AMMONIUM SALT IN LUNNAN 2-1-16 EWLL

In order to overcome the problems of formation characteristics,high transportion costs and high saltiness of water used in drilling fluid,the bipoly ammonium salt is recommrnded as a fluid loss additive which takes the place of the hydrolytice polyarylamide salt used in the primary drilling fluid.Through comprehensive contrast analyses of two wells drilled with similar basic conditions,the results show that the substitution of bipolyamine salt for the polymer consisting of hydrolytic polyacryamine salt or poly-sulfo-saline water base drilling fluid used in the area said for drilling is technically viable,the drilling operation is codrcted under the safe downhole condition and the significant economic effect is obtained.