New improvements:

• new features for the “three-phase separator” object: methods for hydraulic resistance calculation and distribution of dispersed particles;
• more methods of pipeline strength calculations;
• the interface for creating a custom component and working with distillation data is modified;
• the pumping equipment database is expanded;
• the interface of the object properties editor for calculations by dates is modified;
• Parrish-Prausnitz method for hydrate formation temperature calculation, accounting for the inhibitor;
• data import into object browser from MS Excel is corrected.

New improvements:

• more features of “local resistance” object: it is now possible to calculate expansion and contraction;
• data import and export into the object browser from MS Excel is expanded for the pipe, separator, pump, furnace, cooler, heater, etc.;
• the results of complications calculation are now included into the report on pipeline network nodes;
• PVT model can now be adapted using Vcrit parameter;
• when specifying the pressure drop or outlet pressure, the diameter calculation is corrected;
• pipeline network model import is corrected;
• calculation of hydrate formation temperature is corrected.

New improvements:

• Adsorption/desorption calculation, a new object – Adsorber;
• Calculation of carryover in separators accounting for equipment geometry;
• Amine treatment calculation, a new object – Amine gas treatment;
• Calculation of glycol gas dehydration, a new object – Absorber;
• To simulate a pipeline network in equilibrium mode, more available components and new objects have been added: Compressor, Regulator, Refrigerator, Heater, Pressure Reducing Valve, Bean, Saturator, Air Cooler;
• A new UOM is added for gas content of Black Oil model – m3/t;
• New features of Splitter object: it is now possible to set mass and molar flow rate of the mixture;
• Import of Heater and Control Valve objects from commercial software.

New improvements:

• Integrating equilibrium calculation of Gathering system pipeline network with Processing system calculations and RPM system equilibrium;
• Calculation of the control valve Kv capacity on the vapor-liquid flow;
• STO Gazprom method implementation for calculating flame radiation from a horizontal flare;
• It is now possible set calculation methods, liquid content coefficients and friction coefficients for each pipeline locally;
• It is now possible to select a liquid content coefficient in pipelines when adapting a flowsheet;
• It is now possible to activate calculations of flame radiation, emission composition and concentration during flare calculation;
• The user manual is updated: the information on calculation by time and data import via Browser has been added, the objects are described etc.;
• Reports on pipeline network nodes can now be generated;
• More parameters for reporting;
• Import of subflowsheets from the hydraulic calculation module of commercial software;
• More features of distillation calculation.

New improvements:

• A library of pumping equipment with head and rate specifications has been added for Pump object;
• A strength calculation of the recommended pipeline wall thickness for safe operation has been implemented;
• Control valve object has been added to the pipe network equilibrium calculation;
• An option has been added to disable SVP and DPT (saturated vapor pressure and dew point temperature) parameters to speed up the calculations of treatment objects;
• The message field has been optimized - Status, Log and Recommendations windows are highlighted.

New improvements:

• In reports on flows and objects it is now possible to customize the list of displayed parameters and export reports for the time period during calculation by dates;
• Dynamic oil viscosity can now be set using kinematic viscosity values for BlackOil model;
• In the pipeline editor, line is now highlighted when editing segment parameters, and the required columns can be fixed in the table;
• It is now possible to add components in the right order when forming a set of components;
• VFP table files can now be saved to the required folder;
• It is now possible to set the simulation period in time using the starting and ending dates and the number of time steps.

New improvements:

• a new item of equipment is added to the object panel – Absorber;
• it is now possible to set emulsion viscosity via the user table for the fluid model;
• it is now possible to set degassed oil viscosity via the user table for the BlackOil fluid model;
• VFP tables for the pipeline network can now be generated using the BlackOil fluid model;
• it is now possible to change the font and its size for object and flow captions, as well as property tables on the flowsheet;
• the Start window is optimized: actions for creating, opening, importing models, as well as access to templates and recent projects are collected on the Getting Started tab.

New improvements:

• calculation of hydrate formation conditions, taking into account inhibitor dosage, as well as the estimated inhibitor consumption to prevent hydrate formation;
• it is now possible to perform model calculations in Excel;
• a new method to split the components – using the TBP;
• Totalizer calculation is expanded by setting pressure and temperature on the output stream;
• a single-phase flow calculation method is displayed for information in project settings.

New improvements:

• A database of soils and insulation is added to calculate the heat transfer of pipelines;
• New calculation parameters are displayed in the interface: specific pressure drop, friction losses, hydrostat losses;
• Work with a set of components is accelerated;
• It is now possible to disable logical objects;
• It is now possible to manage the color of the flowsheet and connections.

New improvements:

• The object library to create flowsheets has been expanded – a new logical element "Logical setpoint" has been developed, it is designed to create dependencies between one or several parameters of various objects simultaneously based on mathematical operations;
• Saving and opening RN-SIMTEP projects based on the xml file has been implemented;
• A simplified calculation of the heat exchange area for heat exchange and heating/cooling equipment has been implemented;
• Calculation of pumping equipment, flare systems and tube furnace has been optimized;
• It is now possible to sort and filter by generated report content;
• It is now possible to edit parameters by time in Object Browser.

New improvements:

• A new flowsheet element "Virtual Object" has been implemented, it allows simultaneously simulating various scenarios for flows when changing pressure and temperature conditions and flow rates;
• The report on flows with flexible settings for displaying parameters can now be exported to Word;
• It is now possible to search in the Project Tree for easy navigation through flowsheets and fluid models;
• During calculation by time, a flowsheet check for a specific date has been added to analyze the calculation result;
• The association of RN-SIMTEP project files has been corrected when they are opened by double-clicking.

New improvements:

• pump head-flow characteristics can now be set to calculate the outlet pressure and power consumption according to specifications;
• when calculating by dates, it is now possible to change the flowsheet to take into account changes in the structure of surface facilities and additional equipment input/output;
• Time Calculation Editor is added for more convenient setting of time parameters in a tabular form;
• in valve adjustment, options have been added to take into account transient processes (inertia) when changing its position;
• project settings window is improved for quick navigation in custom options.

New improvements:

• sulfur content can now be calculated for black oil fluid model;
• the list of flare system calculated parameters has been expanded;
• oil viscosity can now be calculated when mixing flows with various black oil models, the viscosities of which are specified in a tabular form;
• elements are now sorted in the component set and compositional fluid model;
• it is now possible to collapse the legend in the flowsheet workspace.

New improvements:

• it is now possible to model independent pipeline systems in one workspace;
• pipe sample database by outer diameter and wall thickness is extended;
• an individual object or flowsheet part can now be included in or excluded from the calculation;
• RN-SIMTEP user manual is updated;
• data can now be copied to Pipe Editor with automatic addition of segments;
• the buttons for importing third-party software models have been moved from the toolbar to the File menu.

New improvements:

• a new control module (a template project is available for review - "control model");
• the control valve functionality has been expanded, now taking into account its opening degree;
• flare header purge calculation method is implemented (a template project is available for review - "flare system");
• surrogate models for the following objects: compressor, heater, cooler, air cooler unit.

New improvements:

• pipe network calculation is optimized to minimize calculation time;
• new flowsheet objects: PID controller, ratio controller, split range controller;
• a new surrogate modeling module (a template project is available for test use - "machine learning");
• more components in the database (400+ elements).

New improvements:

• calculation of flare systems for two types of fluid models (black oil, compositional model) is implemented;
• fluid gas content redefining is implemented on Source;
• functionality for importing models from RN-KIN is expanded:
  • sorting and exploration are added,
  • it is now possible to add the data source (data of operating practices or forecast),
  • refined fluid model import is implemented,
  • equipment operating time is now taken into account;
• more imported commercial software models (importing connectors, fluid information, parameters of sources).

New improvements:

• flare systems module is implemented for the composite fluid;
• it is now possible to adapt pipelines using friction coefficients;
• methods for calculating saturated vapor pressure, condensation pressure, water and hydrocarbons dew points are corrected;
• there are more template projects now.

New improvements:

• mixing flows with various compositional models is implemented;
• mixing flows with various blackoil models is implemented;
• it is now possible to import/export data on sources and stocks via Object explorer;
• it is now possible to take into account complications (highly viscous emulsions, ARPD) when calculating multiphase flow in a pipe;
• a new report is added to analyze the effect of complications (highly viscous emulsions, ARPD) when calculating multiphase flow in a pipe.

New improvements:

• more imported commercial software models (pipeline wall thickness, GOR, water cut at network boundaries, viscosity data);
• new correlations of pipeline network hydraulic calculation have been added (Tulsa Unified, Mukherjee-Brill);
• space-saving export of pipeline hydraulic calculation results is added into report templates;
• phase equilibrium calculation is corrected.

New improvements:

• new equations of state and mixing rules for compositional models are implemented;
• inflow curve importing is implemented for producing wells based on hydrodynamic model data;
• pipe profile report is generated in "branch" mode for direct pipeline network calculation;
• UOM can be selected during profile report generating.

New improvements:

• adapting the parameters of technological models to actual data is accelerated;
• implementation of the adaptation algorithm for splitter parameters is corrected;
• it is now possible to use "local resistance" object in the pipeline network equilibrium calculation;
• correlations for calculating the friction resistance coefficient are implemented on local resistances.

New improvements:

• a new method for calculating thermal conductivity Steel-Todos has been implemented;
• it is now possible to select pipeline parameters for all segments during flowsheet adaptation;
• a new object Local resistance has been developed for calculating hydraulic resistances of bends, tee bends, pipe knees, etc.

New improvements:

• a new object Saturator for saturating the gas flow with water;
• additional methods for calculating the viscosity of emulsions: Woelflin Loose, Woelflin Medium, Woelflin Tight;
• the adaptation module is extended with the possibility of fine adjustment with the help of scales;
• it is now possible to generate a report on the profile of pipelines based on selecting in the flowsheet;
• flow search and copying is implemented on the flowsheet;
• calculation of hydrate formation temperature is corrected.

New improvements:

• new logical elements: Adjust, Set;
• the adaptation module is extended with the ability to configure an equilibrium network of pipelines;
• calculation of user's component parameters by density is implemented;
• a new method for calculating carbon dioxide corrosion rate – de Waards (1995)-Pipesim.

New improvements:

• the "property table" is added to the equipment toolbar to view input data and calculation results on the diagram simultaneously;
• it is now possible to sequentially display calculated parameters of several pipelines in the pipeline profile report;
• gas moisture calculation for three-phase equilibrium "oil-gas-water" is implemented;
• import of models from HYSYS is corrected (parameters of carryover, pipeline heat transfer parameters, temperature differences);
• accounting for heat loss in hydraulic calculations is corrected.

New improvements:

• it is now possible to determine dead oil viscosity with two points entered by the user;
• kinematic viscosity parameter is added into the list of properties;
• it is now possible to open and save project files on network resources;
• Beggs-Robinson correlation is corrected for dead oil viscosity at low temperatures;
• import from HYSYS is corrected:
  • import of fractions and water, helium, methanol components;
  • duplication of component sets and fluid models;
  • importing parameters of compressor and heat transfer equipment;
  • importing subflowsheets.

New improvements:

• the adaptation module is extended: now it is possible to select variable and target parameters of flowsheets located on different Systems (Gathering/Processing/RPM Systems);
• search for components is added when creating a set of fluid components;
• the required property search is added into the Properties Table displayed on the flowsheet for the selected object;
• percent UOMs are updated for water cut and separator carryover;
• the flowsheet calculation is fixed in case of excess pressure setting.

New improvements:

• calculating length and frequency of gas-liquid slugs is implemented;
• now it is possible to vary the fluid model parameters during adaptation;
• the adaptation module based on user feedback is improved (setting the change step for each variable parameter; quick inclusion/exclusion of variable parameters during adaptation);
• calculation of gas temperature at the three-phase separator outlet is fixed when setting carryover values.

New improvements:

• a module for adapting the parameters of flowsheet objects to target values is implemented;
• the process of opening saved projects is optimized;
• displaying calculation results at the end of flowsheet calculation is optimized;
• heat transfer calculation is corrected when ground temperature changes;
• the rules for connecting objects when creating flowsheets are corrected.

New improvements:

• calculation of organochlorine compounds in oil was implemented in technological modeling;
• the interface for specifying the compositional fluid model is modified;
• scaling of graphs along the Y axis is adjusted;
• in the object browser (wells and sources) it is now possible to set fluid models.

New improvements:

• simulation of oil treatment facilities using black oil model is implemented;
• import of models from RN-KIN is adjusted (connection of gathering and RPM systems diagrams, methods for calculating emulsion viscosity, parameters of RPM system objects);
• the component database is updated with the data from commercial software.

New improvements:

• models of oil gathering and RPM pipeline networks can now be imported from RN-KIN;
• database of components is extended for creating compositional fluid models;
• the method for calculating multiphase flow can be adjusted depending on the pipe inclination angle;
• enthalpy calculation correlations are added into creating Black Oil models;
• the list of parameter restrictions is extended in project settings.

New improvements:

• date/time dependent flowsheet calculation is implemented (as a sequence of steady states);
• now it is possible to set the flow type in equilibrium calculation of the pipeline network in black oil mode;
• setting the way of displaying the objects connecting on the flowsheet is added;
• import of models from commercial software is implemented.

New improvements:

• water is added into the database of components;
• the calculation of three-phase "oil-gas-water" equilibrium is implemented;
• flow summarizing valve simulation is adjusted in black oil mode;
• wells are added into the equipment library during oil treatment facility simulation;
• project reporting is fixed.

• Compositional model of three-phase equilibrium "vapor-liquid-liquid" uses cubic equations of state and Huron-Vidal mixing rules. It takes into account the liquid non-hydrocarbon phase and allows calculating phase equilibrium in the presence of polar components such as water, methanol, glycols etc.
• Compositional model of equilibrium "vapor-liquid" uses cubic equations of state and classical mixing rules. It has an expanded library of components and allows calculating phase equilibrium in a wide range of temperature and pressure conditions.
• Three-component Black Oil model, which allows calculating the PVT properties of oil, gas and water according to the selected correlations with minimal laboratory fluid information.

• empirical and mechanistic models for determining the pressure gradient in vertical, horizontal and inclined pipes during the movement of multiphase flows, taking into account the route profile: Beggs-Brill, Ansari, Azis, Xiao
• analytical and numerical models for determining heat loss taking into account changes in the flow phase state and heat transfer in buried and partially buried pipes
• determination of PVT parameters at each pipeline section depending on changes in temperature and pressure conditions and phase state
• modeling of branched pipelines, taking into account crossflows, loopings and loop sections
• predicting the risks of complications (high viscosity emulsions, corrosion, ARPD, hydrating, scale, organochlorine compounds)

• modeling of separation/heat transfer/transport equipment
• using the laws of mass and heat balance at each facility, taking into account phase flow state changing
• simulation of process equipment using compositional and Black Oil fluid models
• simulating various processes of: flash and stage separation, compression, condensation, throttling, flow heat exchange, flow heating/cooling, flow mixing, taking into account phase carryover during separation, equipment power consumption, complications at surface facilities
• predicting the risks of complications (high viscosity emulsions, corrosion, ARPD, hydrating, scale, organochlorine compounds)