COMPOSITES BASED ON OYMASH SALT

Abstract

Abstract. Introduction. In recent years, an urgent task is to find materials of domestic origin and
create on their basis affordable and cheap, easy-to-use, reliable composite compositions for the
preparation of well killing fluid. Nowadays, the need for process fluids that help preserve and restore
reservoir properties always remains. Available and inexpensive natural salt from the Oimash deposit
(Mangistau region) can create the required density in the well killing fluid and be its main component.
The aim of the work is to develop compositions based on Oimash salt for the preparation of well killing
fluids, which include all necessary additives. Methodology: The physicochemical characteristics of the
composite compositions for the preparation of well killing fluid (bulk density, mass fraction of insoluble
substances in water, mass fraction of moisture, solubility) and using standard methods corrosion activity
studied. Results. The physicochemical parameters of Oimash salt showed that the salt is not prone to
caking, the proportion of insoluble substances in sea water is 0.45%, and in waste water - 0.54%. The
solubility of the developed compositions depending on the types of water was studied. All compositions
are soluble in various types of water. The solubility of all compositions in seawater is 96.64-97.56%, and
in wastewater from 95.59% to 95.97%. The optimal composition of the salt composition is the
composition of sample No. 1 with the percentage content of components TPPF: NTF: PAA = 0.5: 0.5: 0.1:
30, with a bulk density of 0.7055 t/m3
, a mass fraction of insoluble substances in water - 1.4334%, well
soluble in sea and waste water 97.56 and 95.66%. As the results of samples No. 1 showed, the corrosive
environment is slightly aggressive in terms of aggressiveness.