METHOD FOR PREVENTING DEPOSITS OF ASPHALT-RESINS AND PARAFFIN COMPONENTS OF OIL IN PUMP COMPRESSOR TUBES IN THE WELL AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2018 - IPC E21B37/06 

FIELD: oil industry.

SUBSTANCE: group of inventions refers to the oil industry and can be used in the production of oil with a high content of asphalt-resins and paraffin components of oil (heavy oil deposits). With a fountain production method or with the help of electric centrifugal pump (ESP) units, the gas-liquid flow (GVF) of the well production, moving in the tubing cavity starting from the depth of the beginning of the crystallization of paraffin to the mouth, are accelerated to the quadratic flow regime by switching to transportation along a coaxially placed additional "small diameter" tubing suspension (floppy disk drive). At the same time, from the laminar nature of the movement along the tubing in the cavity of the additional suspension of small diameter (floppy disk drive), GZHP transforms into a turbulent motion regime (quadratic flow regime). Stream turbulence continuously updates the wall oil film together with paraffin crystals and excludes their accumulation, and on the annular space of working tubing and tubing of small diameter, through the outlets of wellhead reinforcement by ground pumps (selectively), the ASPO removers are delivered.

EFFECT: reliability of the work of mechanized wells equipped with ESP in conditions of deposition of heavy oil deposits in the tubing cavity is increased.

2 cl, 2 dwg