• Flow rate measurement of single wells

    UIDS.NT metring unit is a solution for metering the well flowrate in large oil fields when the wells are located at remote distances from the central facilities.

    The UIDS.NT metring units are an alternative to the BIUS metering system and are intended for measuring volume, volumetric flowrate of crude oil, gas-liquid mixture and for measuring volumetric flowrate and volume of oil gas under operating conditions and recalculating them to standard conditions. The unit allows to measure the density under the operating conditions of the emulsion, oil, water, and then calculate their mass and mass flowrate

    Number of connected wells

    1

    Measurement range:

     

    - mass rate of crude oil, tons/day

    from 2 to 400

    - volumetric rate of associated gas at flowline conditions, m3/day

    from 1.6 to 3000

    Working pressure, MPa max

    4.0

    Power supply:

     

    - current type

    AC

    - voltage, V

    380/220

    Supply voltage deviations, %

    from -15 to +10

    AC frequency, Hz

    50± 1

    Power consumption, kVA

    20

    Ambient air conditions:

     

    temperature range, °C

    from -45 °С (U1) and -60 °С (UHL1) to +40 °С  
      
     

    Characteristics of working environment - gas-liquid mixture (oil, formation water, gas)

     

    - temperature, °С, within  

    from 5 to 60

    - liquid viscosity, m²/sec

    120

    - pressure of working , MPa

    4.0

    - oil density, kg/m³

    700-900

    - formation water density, kg/m³

    1000-1200

    - range of water cut values, %

    from 0 to 95

    - wax content, wt %

    < 7,0

    - solids content, mg/L, max

    < 3000

    - solids size, mm, max

    < 5.0

    H2S content, volume %

    < 2,0

    maximum gas oil ratio, m³/ton (standard conditions)

    150

    Limits of relative error, %

     

    - at changing mass and mass liquid rate

     ±2,5

    - at changing volume and volumetric gas rate (at standard conditons)

     ±5,0

    - at determination of mass and mass oil rate as per oil water cut value range:

     

    - up to 70%

     ±6,0

    - from 70% to 95%

     ±15,0

    Life time, years

    10
     
  • Cleaning of separator vessels in metering units

    Gate valve with hydralic drive (ShZ-GP) is designed for periodic short-term opening of liquid (gas) line as well as for creating a pressure drop between the separator and the production header of the Sputnik automated group metering station. Station works with associated gas and petroleum products. 

    The design and components are presented in Fig. 1

    The device consists of gate valve 1, hydraulic cylinder 2 and has connecting flanges 3 with size corresponding to the flanges of a standard wedge gate valve.

    For shut-off the device uses gate 4, which is driven by the lever 5 through the roller 6. Lever 6 is driven through the eyelet 7 and the rod 8 by the hydraulic cylinder 2 when the hydraulic fluid is supplied to the sub-piston cavity. After connecting  the sub-piston cavity with the drain, gate 4 under spring 9 action returns to its original position.

    Adjustment of gate initial position is performed by screwing rod 10 into eyelet 7 and is locked by nut 11. Open position of gate is regulated by nut 12 and is locked by screw 13.

    Fig.1 Gate valve with hydraulic drive ShZ-GP-1

    1- gate valve; 2-hydrocylinder; 3- connecting flanges;

    4-gate; 5- lever; 6- roller; 7-eyelet; 8 - draft; 9- spring; 10-rod; 11,12-nut; 13- screw.

    Parameter

    SHZ-GP-1

    SHZ-GP-1.1

    SHZ-GP-3.1

    Parameter value

    Nominal pressure according to GOST 356, MPa, max

    4.0

    4.0

    4.0

    Test pressure according to GOST 356, MPa, max

    6.0

    6.0

    6.0

    Inside diameter of valve, mm

    41

    41

    58

    Fluid temperature

    -50...+50

    -50...+50

    -50...+50

    Norm of tightness

    GOST 9544

    GOST 9544

    GOST 9544

    Leakage class

    А.

    А.

    А.

    Gate width, mm

    3

    6

    5

    Overall dimensions, mm, max (length * width * height)

    250*160*510

    250*160*510

    310*195*550

    Mass, kg, max

    34

    34

    45
     

    Mean time between failures is, max - 4500 h;

    Life time - 10 years

  • Upgrade of metering units AGZU

    The need for the Sputnik AGZU metering unit modernization appeared due to the new national standard GOST R8.615-2005 "State system for ensuring the uniformity of measurements.  The measuring of quantity of produced oil and petroleum gas. General metrological and technical requirements". Currently used AGZU metering untis do not meet the requirements of the standard in parameters to be measured and metrological characteristics. Units measure only volumetric flowrate of liquid while the standard requires transferring to standard conditions.
    The upgrade solution of the Sputnik AGZU metering units includes the installation of Coriolis flowmeters, watercut meters.
    Scope of upgrade work:
    Technical  inspection;
     repair according to the results of the technical survey;
     unit upgarde;
    coupling of the process control system with the upper level. 

    Our company consistently deals with new technologies that solve the problems of flow rate measurements, fiscal oil metering, and accordingly, the manufacturing of all equipment kinds for the implementation of proposed new technologies.

    The enterprise performs  repair and modernization of measuring installations with reception of  measurement results of oil wells production in accordance with the requirements of GOST 8.615 The measuring of quantity of taken produced oil and petroleum gas. General metrological and technical requirements.

    Metering units are being developed where wellstream fluid to be measured is separated and alternately, separately (free water,  oil-water emulsion, oil and gas) is run through  one metering line with with determination of phases in accordance  with the requirements of GOST P 8.615.

    The proposed technical solution (reduction of flowmeters amount by two times, the use of a single measuring line for both liquid and gas) will significantly reduce cost of metering unit, significantly reduce operating costs, and as a result, improve the reliability of equipment operation, reliability of receiving information, multiply exceeding the requirements of GOST R 8.615 at watercut values exceeding fifty percent.

    All these new technologies proposals for flow measurement are based on the application of Electronic Vortex Impulse Flowmeter (ERVIP) developed by our specialists, which allows to measure the flowrate of both liquid and gas.

    We propose for our customers to pilot test our equipment, original technical solutions with the application of new technologies on the basis of the ERVIP flowmeter.

    Characteristic

    Value

    Characteristics

    Gas flowrate metering range at operating conditions, m³/h

    from 1.4 to 1000

    Range of liquid mass flowrate metering channel, t/day

    0.1 to 3000

    Working pressure, MPa max

    4.0

    Supply voltage for measuring devices, V:

    from AC source with a power frequency (50 ± 1) Hz

    200 to 240

    from DC source

    from 12 to 24

    Power consumption, W, max

    150

    Ambient air temperature, °С

    from -40 to +50

    Fluid characteristics - gas-liquid mixture (oil, formation water, gas)

    Temperature, °C:

    from 1 to 90

    - liquid viscosity, 10-6m²/sec, max

    120

    Fluid pressure, MPa, max

    4.0

    Oil density, kg / m³, max

    600

    Formation water density, kg / m³

    from 1000 to 1200

    Measure liquid density  at t = 20 °C, kg/m³

    from 760 to 1150

    Volume fraction of formation water in the fluid (watercut),%

    from 0 to 98

    Wax content, wt %

    < 7,0

    - solids content, mg/L, max

    50

    Volume content of hydrogen sulphide, %

    < 2,0

    Gas oil ratio, m³/t at standard conditions

     

    < 150

    mean time between failures, hours, min

    17250

    life time, years

    10

    Limits of relative error, %

    Limits of allowable relative error for liquid mass flowrate measuring channel (crude oil),%

    ± 2.5

    Limits of the allowable relative error for volume gas flowrate measuring channel (at standard conditions), %

    ± 5,0

    Limits of allowable relative error for liquid mass flowrate measuring channel, % in the range of water volume fraction

    up to 70%

    from 70% to 95%

    from 95 to 98 %


     

    ± 6.0

    ± 15.0

    ± 30.0
     
  • Manufacturing of new metring units AGZU

    Purpose of measuring device

    The metering units "Sputnik-Massomer HT.1" (hereinafter referred to as units) are intended for metering mass and mass flow rate of a wellstream liquid (crude oil) in the oil-gas-water mixture, mass and mass flow rate of liquid without water (oil), volume and volume flow rate of associated gas at standard conditions. 

    Description of measuring instrument

    The operation principle of the units is based on measurements of mass and mass flow rate of the well fluid (crude oil) in the oil and gas mixture, the mass and mass flow rate of the liquid without water (oil), volume and volumetric flow rate of associated gas at standard conditions after separation

    The units consist of control block (hereinafter - BKU) and  technological block (hereinafter - BT).

    The units can be manufactured in both fixed and mobile (single well) modifications. During manufacturing units in the mobile modification, BT block (single well) and BKU control block are installed in the body of the trailer or car, or on the chassis of the trailer or car.

    BKU control block includes a power cabinet, module of measurements and information processing (hereinafter - BIOI).

    BT block, depending on the version, includes measuring instruments (hereinafter referred to as SI) of mass and mass flow rate of liquid and gas, volume gas flow meters in the gas line, water cut meter, pressure sensors, temperature, gas contamination, fire alarm and equipment: Protection against unauthorized access, separation vessel (hereinafter - ES), switching and control devices, pipes with shut-off and control valves.

    Depending on the design, configuration of measuring instruments and equipment, the units are produced in four modifications:

    - modification 1 - with a mass liquid flow meter, water cut meter in a liquid line and a mass gas flow meter in the gas line;

    - modification 2 - with a mass liquid flow meter, without water cut meter in a liquid line and a mass gas flow meter in the gas line;

    - modification 3 - with a mass liquid flow meter,  water cut meter in a liquid line and a volume gas flow meter in the gas line;

    - modification 4 - with a mass liquid flow meter,  without water cut meter in a liquid line and a volume gas flow meter in the gas line;

    Units of different modifications measure the mass and mass flow rate of the wellstream liquid, the mass and mass flow of dehydrated oil, the volume and volumetric flow rate of free gas at standard conditions in an automatic mode, taking into account:

    – the values of water and oil density inputed in the BIOI data program and measured by standardized methods in laboratory conditions;

    – pressure and temperature corrections of the fluid

    – Fluid GOR

    The list of basic measuring instruments which complement the units modifications is given in Table 1. The measuring instruments included in the unit are determined on the basis of the requirements from unit questionnaire or the technical specification from the customer.

    Table 1 - List of basic measuring instruments included in the modifications of units.

    Name of measuring instrument

    Reg. No.

    Mass flowmeters Micro Motion

    45115-16

    Mass flowmeters ROTAMASS

    27054-14

    Mass flowmeters Promass

    15201-11

    Mass flowmeters SKAT

    60937-15

    Mass liquid flowmeter MASK

    12182-09

    Mass flowmeter ELMETRO-Flomac

    47266-11

    Mass Coriolis flowmeter EMIS-MASS 260

    42953-15

    Vortex meter - gas flow ERVIP.NT

    60269-15

    Gas flow meter DRG.M

    26256-06

    Gas vortex meters

    13489-13

    Universal controller MIKONT-186

    54836-13

    Secondary heat controller IM-2300

    14527-11

    Measuring transducers TEKON-19

    61953-15

    Watercut meter for crude oil VSN-AT

    42678-09

    Watercut meter of crude oil VSN-PIK

    59365-14

    Watercut meter of crude oil VSN-2

    24604-12

    Liquid and gas metering systems R-AT-MM / D / PIK

    46883-11

    Liquid and gas metering systems R-АT-ММ/FS

    50171-12

    Liquid and gas metering systems R-АT-ММ

    39821-13

    Transducers of measuring controllers, programmable I-7000, I-8000, M-7000

    20993-06

    Controller modules MK-400

    24642-03

    Controllers based on SCADAPack measuring modules

    16856-08

    Measuring controllers AT-8000

    42676-09

    Measuring and computing complexes based on the Logix 1 platform

    42664-09

    Measuring controllers R-AT-MM

    43692-10

    Measuring controllers R-AT-MM

    61017-15

    Software and hardware complex "Mega"

    48782-11

    Multifunctional software and hardware complex "Infolook"

    56369-14

    Direct Logic Measuring Controllers

    17444-11