Open AccessTechnical solution for supplying a solvent of asphalt-resin-paraffin deposits (AFS) to a tubing string of oil wells equipped with electric centrifugal pumps.
Author(s) -
С. Е. Чебан,
М. Д. Валеев,
S. A. Leontiev,
A. V. Mayer,
A. R. Samoilov
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/921/1/012004
Subject(s) - reagent , wellhead , solvent , casing , chemistry , petroleum engineering , chromatography , materials science , chemical engineering , organic chemistry , engineering
For prevention and combating paraffin deposites different chemical regents are widely used (ihibitors and AFS solvents). In field conditions many ways of chemical regents dosing are applied. Injection of chemical reagents in oilwell tubing is the most effective for ARPD solvents; in this case consumption of reagents is largely decreasing by comparison with chemical reagents dosing through the well-casing annulus. The article describes design and operating processes of technology of ARPD-solvent dosing in electric centrifugal well pumps installation. This process opens fluid access to oilwell tubing at higher pressure at the wellhead. Reagent RT-1-3, is used as aromatic ARPD solvent. In RT-1-3there is butylbenzene fraction of Kazan Production Association Orgsintez containing a mixture of butylbenzene, isopropylbenzene and polyalkylbenzene.