Systems for measuring the quantity and quality indicators of liquid and gaseous products SIKN, SIKG, SIKNS, SIKV, SIKNP are a functionally integrated set of measuring instruments (MI), technological and auxiliary equipment, which is intended for automated (commercial or operational) accounting of commercial, crude oil, oil products, gas, water between the delivering and receiving parties in accordance with the requirements of regulatory documentation, comply with the requirements of the Technical Regulations of the Customs Union 010/2011 “On the safety of machinery and equipment”.

Features of measurement systems:

• Ergonomic design and layout solutions;
• Wide range of technological modes (flow, pressure, temperature);
• Any existing flow measurement methods;
• Use of a wide range of measuring instruments and components, both domestic and imported;
• Full package of design, operational and permitting documentation;
• Metrological support for measurements;
• Optimal compliance with Customer requirements;
• Individual development of Technical Specifications for the specific requirements of the Customer or the features of the object for each Measurement System;
• Maximum degree of factory readiness of products, minimizing the Customer’s costs during installation work on site;
• Production of blocks, both open and in block boxes with life support systems (lighting, heating, ventilation, air conditioning, security and fire alarms, gas control) in climatic versions U1 or UHL1;
• Use of certified explosion-proof and intrinsically safe electrical equipment in accordance with the PUE.

Composition of works and services:

• Development and metrological examination of the Technical Specifications (TOR);
• Development and metrological examination of the Technical Design (TP), coordination with the design institute;
• Examination of industrial safety of the SIKG project;
• Development of Measurement Methodology (MI), approval, certification of MI;
• Development of our own set of Design Documentation (CD);
• Manufacturing, packaging, testing and supply of products;
• Transportation of products to the Customer’s warehouse;
• Installation supervision;
• Commissioning work;
• Verification of measuring instruments included in the Measurement System;
• Tests for the purpose of approving the type of measuring instrument (MI) with obtaining a Certificate of Approval of the MI type and developing a Verification Methodology (MP);
• Instruction of technical operating personnel of the Measurement System;
• Development of a set of operational documentation, including executive and permitting documentation, certificates, certificates;
• Carrying out acceptance tests jointly with the Customer and putting them into pilot operation (PIO);
• Warranty.

System for measuring the quantity and quality indicators of oil (SIKN), crude oil (SIKNS), petroleum products (SIKNP)

The system for measuring the quantity and quality indicators of oil (SIKN), crude oil (SIKNS), petroleum products (SIKNP) is a functionally integrated set of measuring instruments (MI), technological and auxiliary equipment, which is intended for automated (commercial or operational) accounting of commodity, crude oil or petroleum products by direct dynamic mass or indirect volumetric mass method between the delivering and receiving parties in accordance with the requirements of GOST R 8.595, GOST R 8.615, as well as other regulatory documentation.

In general, the composition of the SIKN (SIKNS, SIKNP) includes the following set of blocks and components:

• Measuring line block;
• Blocks for measuring quality indicators of oil (petroleum products);
• Filter block;
• Validation unit;
• Block of reference tools;
• Control room block;
• Information collection and processing system.

The measuring line block (MLB) consists of input and output manifolds, as well as measuring lines on which flow, pressure and temperature measuring instruments, shut-off valves at the inlet and outlet of the line, and control valves are installed. The BIL is designed to measure flow, temperature and pressure of the product and transmit the corresponding signals to the information processing system. A sampling device (SSD) is installed on the BIL collector to select the product into the BIC. The BIL provides a connection unit for a verification unit (UCPU) to allow verification of flowmeters of measuring lines without dismantling and stopping metering.

The quality indicators measurement unit (QIK) is a quality line (pipeline) on which the following redundant measuring instruments and technological equipment are located sequentially:

• • Fine filters, pumps, check valves;
  • Manual and automatic samplers;

• In-line oil moisture meters;
• In-line density meters;
• In-line viscometers;
• In-line seromer;
• Flow indicator;
• Thermostatic cylinder;
• Pressure and temperature measuring instruments.

NIR is designed for taking an oil sample to the laboratory, as well as for continuous measurement of density, viscosity, temperature, pressure, moisture content, sulfur content of oil (petroleum product). The NIR ensures that the product flow is isokinetic. The composition may include a system for washing quality devices.

A filter unit (BF) is necessary to purify the oil (petroleum product) entering the SIKN from mechanical impurities and is mounted at the entrance to the SIKN. Structurally, the BF consists of an input and output manifold and a working and backup filter with shut-off valves installed between them. To monitor filter clogging, means of measuring the pressure difference before and after the filter are used. Filters are equipped with quick-release covers.

The main element of the Verification Unit (VPU) is a compact prover, or a pipe-piston verification unit. The block is designed to control metrological characteristics and verify flow meters on BIL measuring lines by comparing flow readings with a known calibrated prover volume. Verification processes are carried out without stopping the accounting of oil (petroleum products). The composition may include a system for washing devices.

The reference means block (TSB) ensures verification of a pipe piston installation or prover included in the BPU. Standard means are standard measuring instruments and scales. In addition to the above, the TSB may include weights and a comparator scale for checking the main scales.

The control room block is designed to accommodate information processing system equipment and is a fully factory-ready block box with interior finishing and lighting, heating, ventilation, and fire alarm systems.

The information collection and processing system (IOP) is an element of the system for measuring quantity and quality indicators, designed to automatically perform the functions of collecting, processing, displaying, recording and storing information based on measurement results and controlling the operating modes of the system for measuring the quantity and indicators of oil, crude oil, petroleum products. It is assembled in unified instrument cabinets and represents a set of functionally related components: a measuring and computing complex (flow computer), a control controller, secondary equipment of measuring instruments, uninterruptible power supplies, automatic input of backup power, system and application software. Also included in the SOI is the required number of automated operator workstations (AWS) of desktop design or cabinet design with a touch control panel. SOI is designed to receive signals from sensors and devices.

System for measuring gas quantity and quality parameters (SIKG)

The system for measuring the quantity and parameters of gas quality (SIKG) is a set of measuring instruments (MI), technological and auxiliary equipment, which is designed for automated commercial or operational accounting of free oil and natural gas using ultrasonic, rotary, vortex, turbine flow meters or the variable pressure drop method between the delivering and receiving parties in accordance with the requirements of the Legislation of the Republic of Kazakhstan.

In general, the SICG includes the following set of blocks and components:

• Measuring line block;
• Blocks for measuring gas quality indicators;
• Control room block;
• Information collection and processing system.

The measuring line block (MLB) consists of input and output manifolds, as well as measuring lines on which instruments for measuring flow, pressure and temperature are installed, if necessary: shut-off valves at the inlet and outlet of the line, control valves, filters. The BIL is designed to measure flow, temperature and pressure of the product and transmit the corresponding signals to the information processing system. A gas sampling system (GS) and/or a sampling device (SSD) is installed on the BIL manifold for sampling the product in the BIC (if necessary).

Determination of the numerical values of the uncertainty of the results (errors) and other parameters of the SICG are performed using the ISO Flowmeter software package.

The quality indicator measurement unit (QIR) is a redundant set of in-line gas analyzers and process equipment:

• Gas sample preparation system;
• Gas supply and calibration unit (cylinders with helium, compressed air, nitrogen, calibration mixture);
• Industrial flow chromatograph for automatic cyclic measurement of gas component composition, calculation of density, volumetric heat of combustion, Wobbe number. At the Customer’s request, a separate chromatograph can be used to determine sulfur-containing gas components and their parameters;
• In-line density meter;
• Dew point analyzer for moisture and hydrocarbons, or gas humidity meters;
• Oxygen analyzer.

The control room block is designed to accommodate information processing system equipment and is a fully factory-ready block box with interior finishing and lighting, heating, ventilation, and fire alarm systems.

The information collection and processing system (IPS) is an element of the system for measuring the quantity and parameters of gas, designed to automatically perform the functions of collecting, processing, displaying, recording and storing information based on the results of measurements and controlling the operating modes of the system for measuring the quantity and parameters of gas. It is assembled in unified instrument cabinets and represents a set of functionally related components: a measuring and computing complex (flow computer), a control controller, secondary equipment of measuring instruments, uninterruptible power supplies, automatic input of backup power, system and application software. Also included in the SOI is the required number of automated operator workstations (AWS) of desktop design or cabinet design with a touch control panel. SOI is designed to receive signals from sensors, instruments and units of SIKG technological units, carry out accounting operations, display information on a monitor, archive data, control modes, generate and print reports and protocols and transfer information to the Customer’s upper-level systems.

System for measuring water quantity and quality indicators (WQI)

The system for measuring water quantity and quality indicators (SIQI) is a functionally integrated set of measuring instruments (MI), technological and auxiliary equipment, which is designed for automated operational accounting of water by direct dynamic mass or indirect volumetric mass method between the delivering and receiving parties in accordance with requirements of the Customer, as well as other regulatory documentation.

In general, the SIKV includes the following set of blocks and components:

• Measuring line block;
• Control room block;
• Information collection and processing system.

The measuring line block (MLB) consists of input and output manifolds, as well as measuring lines on which instruments for measuring flow, pressure and temperature, shut-off valves at the inlet and outlet of the line, control valves, and filters are installed. The BIL is designed to measure flow, temperature and pressure of the product and transmit the corresponding signals to the information processing system. A sampling device (SSD) is installed on the BIL collector to select the product for analysis in the laboratory, or an automatic sampler.

The control room block is designed to accommodate information processing system equipment and is a fully factory-ready block box with interior finishing and lighting, heating, ventilation, and fire alarm systems.

The system for collecting and processing information (IOP) is an element of the System for measuring the quantity and indicators of water, designed to automatically perform the functions of collecting, processing, displaying, recording and storing information based on the results of measurements and managing the operating modes of the system for measuring the quantity and indicators of water. It is assembled in unified instrument cabinets and represents a set of functionally related components: a measuring and computing complex (flow computer), a control controller, secondary equipment of measuring instruments, uninterruptible power supplies, automatic input of backup power, system and application software. Also included in the SOI is the required number of automated operator workstations (AWS) of desktop design or cabinet design with a touch control panel. SOI is designed to receive signals from sensors, instruments and units of SIKV technological units, carry out accounting operations, display information on a monitor, archive data, control modes, generate and print reports and protocols, transfer information to the Customer’s upper-level systems.

Mobile measuring unit

Mobile measuring installations (hereinafter referred to as installations) based on a Roxar MPFM 2600 or Pietro Fiorentine multiphase flow meter are designed to measure the current flow rate and mass of crude oil, crude oil without water, the volume fraction of water, the current gas flow rate in volumetric and mass units and volume of gas in multiphase flows of oil well production without preliminary separation of the measured medium, as well as display and storage of measurement results.

Main advantages and capabilities of a mobile measuring unit

• Measurement of flow rates of fluid phases under complicated flow conditions (viscous oil, slug flow, emulsions, low temperatures, foaming);
• No influence of changes in the operating mode of the well on the accuracy of measurements;
• Accurate measurements of the number of phases in real time without flow separation;
• Bringing a well to optimal production mode without waiting for stationary measuring systems to be put into operation;
• Eliminating the risk of failure of stationary separation-type metering installations;
• Minimizing the risk of loss of raw material production while minimizing the presence of working personnel to service the installation (two people);
• Elimination of lengthy procedures for preparing and measuring raw materials, reducing the labor intensity of measurements;
• Carry out continuous measurement of multiphase flow in real time over the entire range of well flow rates;
• Possibility of determining the H2S fraction in a gas-liquid flow;
• Reliability and compactness.

Completeness and layout of equipment

Typically, the installation consists of technological and hardware blocks.

The technological block is designed to accommodate and ensure normal operating conditions for the measuring instruments and technological equipment included in the installation. For example, the block can be made in the form of an insulated room, inside of which the following are installed:

• multiphase flow meter Roxar MPFM 2600;
• safety valve;
• check valve;
• main piping used to connect the installation inputs to the flow meter input and the flow meter output line to the output manifold;
• drainage piping;
• hydraulic station;
• chemical tank;
• dosing pump;
• shut-off and control valves;
• control and measuring instruments;
• fire alarm and gas sensors;
• and other technological equipment depending on the project requirements.

The hardware unit is designed as an insulated room, inside of which the following are located:

• flow computer*;
• power cabinet and control cabinet (if available);
• Secondary fire alarm devices and gas analyzers were installed.

To maintain the required positive temperature in the room, an electric heater is installed. If necessary, diesel power plants with a fuel reserve tank are optionally installed.
The flow computer is a computational unit for quickly executing all algorithms for calculating flow parameters. It communicates with all internal meters and interfaces with flowmeter service software and client systems. This allows you to reduce the number of metrologically significant elements of the installation to a minimum, eliminating the need for additional computers and controllers.