Dual completion natural flow-natural flow

Dual completion natural flow-natural flow is used for simultaneous dual oil production from two formations according to scheme: bottom – natural flow, top – natural flow.

Application

Dual completion of oil through two parallel production strings.

Advantages

Separate flow rate metering;
Infinite adjustment of buffer pressure of each formation;
Each formation pressure and temperature measurement;
Separate sampling from each formation without well stop;
Provision of deparaffination unit for each production string;
Master valves available at wellhead;
Emergency tubing disconnection from packer-anchor equipment;

Benefits

Increased oil production by eliminating formations interaction;
Decreased drilling footage;
Double-lift wellhead allowing to explore one formation without stopping another;
Killing of each formation without packer unset;
(De-) installation with standard equipment and tools by workover crews;
Double-lift arrangement for production from one formation when the other one is idle;
Technological service provided by manufacturer: selection, production, installation, supervision and maintenance;
Package supply of subsurface and surface equipment;

Order reference

DUAL COMPLETION NATURAL FLOW – NATURAL FLOW

Technical specification

Casing ID, inch (mm):
not less than 6 5/8 (168)
Tubing OD, inch (mm):
from 2 3/8 (60)
Unit max. setting depth, ft (m):
up to 14760 (4500)
Max. pressure, MPa (Psi):
21 (3045)
Type of downhole deparaffination unit:
automatic, semi-automatic