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

Control box

Multi-purpose equipment for automated oil production. In partnership with ABB international holding.

Application

Automatic protection and speed control of electric motor for enhanced oil production.

Advantages

High reliability;
Wide range of customized equipment upgrade options;
Flexible real-time drive control:
– by pump filling level;
– by calendar;
– by timer;
– by SCADA remote commands;
– in manual mode;
Accurate measurement of load and position of polished rod;
Unit operation data archiving;
Remote control, monitoring, reading of dynamograms and emergency notification in real time are available;
Modifications with ELKAM-RM remote monitoring and control system, additional control sensors, video cameras and other electrical equipment are available;

Benefits

Optimized and automated production;
Improved energy efficiency;
Runlife exceeds 5 years;

Types of control boxes

Direct start and automatic control;
VFD with manual and automatic control;
Sensorless automated control;
Intelligent control boxes;

Order reference

CONTROL BOX-ELKAM-BPU80*-VFD
*BPU80 – beam pumping unit

Technical specification

Power, kWt:
up to 75 (more – as per Customer’s request)
Protection index IP:
as per Customer’s request
Climatic version:
as per Customer’s request

Beam pumping unit

Surface drive for SRP operation.

Application

Reciprocal motion transmission to plunger of sucker rod pump.

Advantages

Serial equipment tested for decades around the world;
High reliability and efficiency;
Low energy consumption;
High maintainability and repairability;
ELKAM control box is available with remote control, monitoring and real-time display of dynamograms;

Benefits

Energy saving;
Service life exceeds 10 years;
Stable operation throughout the entire runlife;

Order reference

BPU-ELKAM 60

Technical specification

	BPU ELKAM 60	BPU ELKAM 80	BPU ELKAM 120
Polished rod load, kN (t)	60 (6)	80 (8)	120 (12)
Stroke, ft (m)	up to 6 (2.1)	up to 11(3.5)	up to 16 (5)
Strokes per minute	up to 10	up to 10	up to 5
Engine speed, rpm	500-750	500-750	1500
Engine rated power, kW	up to 18	up to 22	up to 45
Weight, kg	8 600	12 500	24 000

Hydraulic pumping unit

Surface drive for well completion & production by SRP.

Application

Reciprocal motion transmission to plunger of sucker rod pump.

Advantages

Easy installation and compact size;
Low metal consumption;
No foundation is required;
Various modifications are available;
Reduced dynamic loads on rod string due to smooth reverse;
Rod rotator is available;
Upstroke / downstroke speed may differ;
Electro-hydraulic system duplication ensures high reliability;
Spudding mode (when sucker rod string is clogged);

Benefits

Remote control, monitoring and real-time display of dynamograms;
Energy saving;
Reduced well infrastructure cost;
Reduced installation time;
Higher mobility;
Increased efficiency of pumping system;
Improved performance in complicated oil production;

Order reference

HPU-120-4

Technical specification

Polished rod load, kN:
up to 200
Stroke length, ft (m):
up to 20 (6)
Strokes per minute, 1/min:
up to 6
Operating pressure, MPa (Psi):
up to 19 (2755)
Control system:
electronic, VFD
Polished rod OD, inch (mm):
1.25 (32); 1.57 (40)
Support type:
base plate, A-shape support
Modification of well module:
open/closed, double lift for dual completion

Linear pumping unit

Mobile surface drive for well completion & production by SRP.

Application

Reciprocal motion transmission to plunger of sucker rod pump.

Advantages

Remote control and monitoring;
Smooth regulation of number of strokes;
No foundation is required;
Easy (de-) installation;
Real-time monitoring of pumping unit operation;
Rod rotator is available;
Installation on different wellhead setup;

Benefits

Reduced well infrastructure cost;
Reduced installation time;

Order reference

LPU-80-1.5

Technical specification

Polished rod load, kN:
up to 80
Stroke length, ft (m):
5 (1.5)
Strokes per minute, 1/min:
up to 6
Control system:
electronic, VFD
Polished rod OD, inch (mm):
up to 1.5 (38)

Polished rod

ELKAM produces polished rods up to 11 meters long, with nitrided, spray metal or plain working surface.

Application

Wellhead sealing, as well as connection of surface drive with sucker rod string and transmission of reciprocal motion to sucker rod pump plunger or transmission of rotary motion to PCP rotor during oil production.

Advantages

Rolled connection thread for high fatigue strength;
Rod surface hardening by spinning;
Improved strength and anti-corrosion properties;

Benefits

Coating and rolled thread ensure extended runlife

Order reference

PR-1.25-7/8-11000-D

Technical specification

Polished rod OD, inch (mm):
0.98 (25); 1.12 (28.6); 1.25 (31.8); 1.5 (38.1)
Connection thread, inch (mm):
3/4 (19), 7/8 (22), 1(25)
Length, inch (mm):
up to 435 (11000)
Grade:
K, C, D, D special
Сoating:
nitrided / spray metal / plain

Hollow polished rod

Hollow polished rod is used as component of dual completion, production, heating and washing equipment.

Application

Wellhead sealing;
Transmission of reciprocal motion from surface drive to sucker rod pump plunger;
Extraction of produced fluid from pump to production line through inner channel;
Hollow sucker rod and tubing string washing in order to remove paraffin and salt deposits and to improve efficiency of equipment set;
Injection of chemical agents or steam into well through hollow sucker rod string to reduce effects of complicating factors and to enhance oil recovery;

Advantages

Rolled connection thread for high fatigue strength;
Thrust cones reduce bending stress at threads and ensures tight connection;
Nitrided hardening of outer surface;

Benefits

Coating and rolled thread ensure extended runlife;
Separate lifting of produced fluid at dual completion and injection;

Order reference

HPR-42-4880-D

Technical specification

Nominal size:
42, 44
Diameter, inch (mm):
1.65 (42); 1.73 (44)
Length, inch (mm):
155 (3890), 190 (4880), 315 ( 8000)
Grade:
C, D

PCP hollow polished rod

PCP hollow polished rod is used for oil production as component of PCP system.

Application

Wellhead sealing;
Transmission of torque from a surface drive to PCP rotor;
Hollow sucker rod and tubing string washing in order to remove paraffin and salt deposits and to improve efficiency of system;
Can be used for reciprocal motion from surface drive to plunger of sucker rod pump;

Advantages

Hot-upset rod head ensures equal strength across polished rod;
Tool-joint threads are used for transmission of high torques and ensure reliability and tightness of connections at bending stress and tensile loading;

Benefits

Tubing string can be flushed with idle drive without affecting formation zone;
Minimum volume of flush agents;
Rod length allows to extract rotor from stator for direct flushing without wellhead disassembly;

Order reference

PCP HPR-38-8000-D

Technical specification

Nominal size:
38
Diameter, inch (mm):
1.5 (38.1)
Length, inch (mm):
315 (8000)
Grade:
C, D

Stuffing box

Stuffing box is used for wellhead sealing.

Application

Sealing of polished rod in wellhead setup during oil production using SRP.

Advantages

Double sealing allows to replace cups and repair stuffing box without well killing;
Corrosion- and temperature-resistant modifications;
Modification with shutoff valve to prevent wellhead depressurization;
Self-aligning head is available to reduce wear of cups and increase stuffing box runlife;

Benefits

Improved SRP non-stop operation;
Elimination of wellhead depressurization;

Order reference

SB-25-32-14
25 (2 7/8”) – tubing ID
32 (1.25) – polished rod OD
14 – working pressure with idle BPU

Technical specification

Operating pressure with running BPU, MPa (Psi):
4 (580)
Operating pressure with idle BPU, MPa (Psi):
14 (2030); 21 (3045)
Polished rod OD, inch (mm):
1.25 (32); 1.5 (38); 1.65 (42)
Radial movement of stuffing box axis, inch (mm):
0.47 (12)
Stuffing box tilt angle (taking into account radial movement), degree:
5
Temperature properties, °F (°C):
-140 up to +572 (-60 up to +300)

Bypass check valve

Bypass check valve ensures reliable discharge of gas from annular space into production line.

Application

Gas bypass from annulus to production line.

Advantages

Easy to install;
High repairability;
High reliability;
Corrosion-resistant modification is available;

Benefits

Low maintenance cost;
Normalization of well operation due to maintenance of constant annular pressure;

Order reference

BCV-65**х21*

Technical specification

Operating pressure*, MPa (Psi):
up to 21 (3045)
Nominal pipe size**, inch (mm):
2.5 (65)
Flow rate, bopd (m3 /d):
up to 25160 (4000)
Connection flanges:
up to Customer’s requirements