METHOD OF DUAL OPERATION OF TWO STRATA WITH ONE WELL Russian patent published in 2014 - IPC E21B43/14 E21B47/12 

Abstract RU 2513896 C1

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil industry and can be applied in dual operation of two strata in the same well. The installation contains a flow column located in the well casing thus forming tubular annulus, a packer, a submersible electric centrifugal pump, an electrical submersible cable passing through the packer and a regulating closing and bypass device in a cylindrical body installed in the packer and limited at butt ends by sleeves for cross flows of strata fluids. The body of the device is connected by its upper sleeve to the flow column at the level above gravel and sand filler in the tubular annulus above the packer. By its lower sleeve the body is connected to the pump through a sleeve adapter. In the upper sleeve there is an opening with a nipple installed in it resting upon the edge of a socket made in the lower sleeve which forms with the body a channel for fluid passage from the sleeve adapter to the flow column through longitudinal channels inside the sleeves and to this end two pairs of lip-type seals are installed at the nipple. In the nipple there is a needle valve with electric drive. In the nipple there are windows communicating with radial channels of the upper sleeve through the groove made from outside the nipple at the window level for fluid extraction depending on pressure drop in strata.

EFFECT: excluding effect of the upper stratum depression with possibility of regulation.

6 cl, 1 dwg

Similar patents RU2513896C1

Title Year Author Number
PLANT FOR DUAL OPERATION OF MULTIPLE-ZONE WELL WITH TELEMETRY SYSTEM 2012
  • Nikolaev Oleg Sergeevich
RU2512228C1
METHOD OF SIMULTANEOUS-SEPARATE OPERATION OF DUALLY-COMPLETED WELL AND WELL PUMP UNIT FOR ITS IMPLEMENTATION 2014
  • Nikolaev Oleg Sergeevich
RU2562641C2
PROGRAM-CONTROLLED INJECTION WELL 2015
  • Nikolaev Oleg Sergeevich
RU2578078C2
DEVICE FOR DUAL INJECTION OPERATION OF AGENT IN WELL FORMATIONS (VARIANTS) 2016
  • Nikolaev Oleg Sergeevich
RU2626485C2
INJECTION WELL 2015
  • Nikolaev Oleg Sergeevich
RU2574641C2
METHOD FOR INTERVAL OIL PRODUCTION FROM A MULTIPLE ZONE WELL AND A PACKERLESS PUMPING PLANT FOR IMPLEMENTATION THEREOF 2017
  • Nikolaev Oleg Sergeevich
RU2653210C2
SINGLE PACKER PUMP FACILITY FOR FLUID PRODUCTION FROM TWO WELL FORMATIONS 2016
RU2611786C2
OIL PRODUCING PLANT 2018
  • Nikolaev Oleg Sergeevich
RU2691039C1
SINGLE PACKER UNIT FOR SIMULTANEOUS-SEPARATE EXTRACTION OF FLUID FROM TWO FORMATIONS OF ONE WELL (VERSIONS) 2015
  • Nikolaev Oleg Sergeevich
RU2591225C2
CONTROL UNIT AND PRODUCED FLUID FLOW METER FOR MULTIPAY WELL (VERSIONS) 2014
  • Nikolaev Oleg Sergeevich
RU2557023C2

RU 2 513 896 C1

Authors

Nikolaev Oleg Sergeevich

Dates

2014-04-20Published

2012-11-21Filed