METHOD OF INCREASING LUBRICATING CAPACITY OF WELL FLUIDS Russian patent published in 2020 - IPC C09K8/36 C09K8/35 

Abstract RU 2721983 C2

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil and gas. Method of increasing lubricating capacity of well fluid, which is drilling fluid, fluid for completion of well or fluid for coiled tubing, includes the following steps: obtaining a water-in-oil microemulsion which contains insoluble zinc hydroxide nanoparticles with size of 1 to 40 nm in an internal aqueous phase, wherein said insoluble particles are synthesized from their precursors in water drops of the microemulsion; adding to the borehole fluid a water-in-oil microemulsion; pumping of borehole fluid into underground reservoir of the deposit and drilling, completion or coil tubing in underground formation.

EFFECT: technical result is increased lubricating capacity and reduced fluctuation of coefficient of friction of well fluids for oil and gas.

6 cl, 2 dwg, 3 tbl, 8 ex

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Authors

Gallo Erik

Merli Luigi

Pirovano Pierangelo

Privitera Letizia

Cecchetto Massimo

Floridi Giovanni

Li Bassi Giuseppe

Dates

2020-05-25Published

2015-11-06Filed