METHOD FOR AUTOMATIC MAINTENANCE OF DENSITY OF UNSTABLE GAS CONDENSATE SUPPLIED TO MAIN CONDENSATE LINE, USING TURBOEXPANDER UNIT, IN INSTALLATIONS OF LOW-TEMPERATURE GAS SEPARATION IN AREAS OF EXTREME NORTH Russian patent published in 2019 - IPC F17D5/00 

Abstract RU 2697208 C1

FIELD: technological processes.

SUBSTANCE: invention relates to the field of production and preparation of gas and gas condensate for long-distance transport. Proposed method comprises purification of incoming gas-condensate mix coming from production wells from mechanical admixtures in separator of first stage of separation. At the plant gas-condensate mixture is divided into UGC, gas and aqueous solution of inhibitor (ASI), with subsequent removal UGC and ASI into separator of liquids for degassing. From separator of liquids ASI is withdrawn for regeneration of inhibitor in inhibitor regeneration shop, and UGC pump is fed into manifold condensate line (MCL). Weathering gas from liquid separator is sent for use for own needs, for compression with subsequent pumping into main gas line or for recycling. To control density UGC APCS monitoring density sensor density UGC, supplied to MCL. Simultaneously APCS temperature sensor controls the temperature of the gas at the outlet of the low-temperature separator, the value of which is automatically maintained by controlling the rotational speed of the turbine expander (TDA), which is set by cascade of two proportional-integral-differentiating (PID) of regulators implemented based on APCS plant. To this end, the SP input PID-density maintenance regulator UGC at fluid separator output density setting signal is transmitted UGC, which value is set by maintenance personnel. And to feedback input PV of same PID-controller transmits actual density signal UGC from sensor installed at fluid separator outlet. Comparing said signals, PID-regulator generates at its output CV a rotor rpm setting signal TDA, providing required cooling of gas-liquid mixture supplied to input of low-temperature separator, and ensuring achievement of required density UGC at fluid separator outlet. Setpoint signal APCS sends SP input to input PID-rotor speed control regulator TDA. Simultaneously, to feedback input PV of this PID-regulator, from rotor rpm sensor TDA, rotor actual rpm signal is supplied TDA. Comparing input signals, PID-rotor speed control device TDA generates at its output CV control signal of control valve installed at output from turbine TDA. Due to this, control over the volume of dried gas leaving the low-temperature separator and passing through the compressor TDA. At that, APCS simultaneously controls and pressure in separator of liquids, automatically maintaining its value specified by process procedure of installation, by means of control valve installed at gas outlet from separator of liquids.

EFFECT: disclosed method enables automatic monitoring and maintaining a given density UGC, supplied to MCL, prevent formation of gas plugs and their accumulations in condensate line, reduced risk of occurrence of emergencies during operation MCL, associated with density fluctuations UGC.

1 cl, 2 dwg

Similar patents RU2697208C1

Title Year Author Number
METHOD FOR AUTOMATIC SUPPORT OF THE TEMPERATURE MODE OF TECHNOLOGICAL PROCESSES WITH THE USE OF TURBOEXPANDER AGGREGATE ON THE INSTALLATION OF LOW-TEMPERATURE GAS SEPARATION UNDER THE FAR NORTH CONDITIONS 2018
  • Nikolaev Oleg Aleksandrovich
  • Arabskij Anatolij Kuzmich
  • Zavyalov Sergej Vladimirovich
  • Efimov Andrej Nikolaevich
  • Makshaev Mikhail Nikolaevich
  • Smerdin Ilya Valerievich
  • Gunkin Sergej Ivanovich
  • Turbin Aleksandr Aleksandrovich
  • Talybov Etibar Gurbanali Ogly
  • Ponomarev Vladislav Leonidovich
  • Datkov Dmitrij Ivanovich
RU2680532C1
METHOD FOR AUTOMATIC CONTROL OF A LOW-TEMPERATURE GAS SEPARATION UNIT WITH TURBO-EXPANDER UNITS IN THE EXTREME NORTH OF THE RUSSIAN FEDERATION 2022
  • Arno Oleg Borisovich
  • Arabskij Anatolij Kuzmich
  • Ageev Aleksej Leonidovich
  • Gunkin Sergej Ivanovich
  • Turbin Aleksandr Aleksandrovich
  • Talybov Etibar Gurbanali Ogly
  • Ponomarev Vladislav Leonidovich
RU2783033C1
METHOD FOR AUTOMATIC MAINTENANCE OF DENSITY OF UNSTABLE GAS CONDENSATE USING TURBO-EXPANDER UNITS AT OUTLET OF LOW-TEMPERATURE GAS SEPARATION UNITS OF NORTHERN OIL AND GAS CONDENSATE FIELDS OF THE RUSSIAN FEDERATION 2021
  • Arno Oleg Borisovich
  • Arabskij Anatolij Kuzmich
  • Ageev Aleksej Leonidovich
  • Gunkin Sergej Ivanovich
  • Turbin Aleksandr Aleksandrovich
  • Talybov Etibar Gurbanali Ogly
  • Ponomarev Vladislav Leonidovich
  • Zheleznyj Sergej Petrovich
RU2768837C1
METHOD FOR AUTOMATIC MAINTENANCE OF DENSITY OF UNSTABLE GAS CONDENSATE SUPPLIED TO THE MAIN CONDENSATE LINE, USING THE AIR COOLING APPARATUS, AT THE UNITS OF LOW-TEMPERATURE GAS SEPARATION IN AREAS OF THE FAR NORTH 2018
  • Arno Oleg Borisovich
  • Arabskij Anatolij Kuzmich
  • Zavyalov Sergej Vladimirovich
  • Efimov Andrej Nikolaevich
  • Khasanov Oleg Sajfievich
  • Smerdin Ilya Valerievich
  • Gunkin Sergej Ivanovich
  • Turbin Aleksandr Aleksandrovich
  • Talybov Etibar Gurbanali Ogly
  • Ponomarev Vladislav Leonidovich
  • Datkov Dmitrij Ivanovich
RU2692164C1
METHOD FOR AUTOMATIC MAINTENANCE OF TEMPERATURE CONDITION AT LOW-TEMPERATURE GAS SEPARATION INSTALLATIONS WITH TURBO-EXPANDER UNITS IN THE EXTREME NORTH OF THE RUSSIAN FEDERATION 2022
  • Moiseev Viktor Vladimirovich
  • Arabskij Anatolij Kuzmich
  • Ageev Aleksej Leonidovich
  • Gunkin Sergej Ivanovich
  • Turbin Aleksandr Aleksandrovich
  • Talybov Etibar Gurbanali Ogly
  • Ponomarev Vladislav Leonidovich
RU2783036C1
METHOD FOR AUTOMATIC CONTROL OF LOW-TEMPERATURE GAS SEPARATION UNIT WITH TURBO-EXPANDER UNITS IN THE NORTH OF RF 2022
  • Moiseev Viktor Vladimirovich
  • Arabskij Anatolij Kuzmich
  • Ageev Aleksej Leonidovich
  • Gunkin Sergej Ivanovich
  • Turbin Aleksandr Aleksandrovich
  • Talybov Etibar Gurbanali Ogly
  • Ponomarev Vladislav Leonidovich
RU2781238C1
METHOD FOR AUTOMATIC MAINTENANCE OF DENSITY OF UNSTABLE GAS CONDENSATE, SUPPLIED TO MAIN CONDENSATE LINE, AT INSTALLATIONS OF LOW-TEMPERATURE GAS SEPARATION IN AREAS OF EXTREME NORTH 2018
  • Nikolaev Oleg Aleksandrovich
  • Arabskij Anatolij Kuzmich
  • Zavyalov Sergej Vladimirovich
  • Efimov Andrej Nikolaevich
  • Khasanov Oleg Sajfievich
  • Zuev Oleg Valerevich
  • Gunkin Sergej Ivanovich
  • Turbin Aleksandr Aleksandrovich
  • Talybov Etibar Gurbanali Ogly
  • Ponomarev Vladislav Leonidovich
RU2700310C1
METHOD FOR AUTOMATIC SUPPORT OF THE TEMPERATURE MODE OF TECHNOLOGICAL PROCESSES OF THE INSTALLATION OF LOW-TEMPERATURE GAS SEPARATION UNDER THE FAR NORTH CONDITIONS 2018
  • Arno Oleg Borisovich
  • Arabskij Anatolij Kuzmich
  • Zavyalov Sergej Vladimirovich
  • Efimov Andrej Nikolaevich
  • Khasanov Oleg Sajfievich
  • Smerdin Ilya Valerievich
  • Gunkin Sergej Ivanovich
  • Turbin Aleksandr Aleksandrovich
  • Talybov Etibar Gurbanali Ogly
  • Ponomarev Vladislav Leonidovich
  • Zheleznyj Sergej Petrovich
RU2685460C1
METHOD FOR AUTOMATIC MAINTENANCE OF TEMPERATURE MODE OF INSTALLATION OF LOW TEMPERATURE GAS SEPARATION BY ADIABATIC EXPANSION, AIR COOLING DEVICES AND/OR THEIR COMBINATION 2020
  • Arno Oleg Borisovich
  • Arabskij Anatolij Kuzmich
  • Ageev Aleksej Leonidovich
  • Partilov Mikhail Mikhajlovich
  • Khasanov Oleg Sajfievich
  • Gunkin Sergej Ivanovich
  • Turbin Aleksandr Aleksandrovich
  • Talybov Etibar Gurbanali Ogly
  • Ponomarev Vladislav Leonidovich
  • Zheleznyj Sergej Petrovich
  • Dyachenko Ilya Aleksandrovich
  • Linnik Aleksandr Ivanovich
RU2756965C1
METHOD FOR AUTOMATICALLY MAINTAINING THE DENSITY OF UNSTABLE GAS CONDENSATE AT THE OUTPUT OF LOW-TEMPERATURE GAS SEPARATION UNITS OF THE NORTHERN PETROLEUM AND GAS CONDENSATE FIELDS OF THE RUSSIAN FEDERATION 2021
  • Efimov Andrej Nikolaevich
  • Arabskij Anatolij Kuzmich
  • Ageev Aleksej Leonidovich
  • Gunkin Sergej Ivanovich
  • Turbin Aleksandr Aleksandrovich
  • Talybov Etibar Gurbanali Ogly
  • Ponomarev Vladislav Leonidovich
  • Kirsanov Sergej Aleksandrovich
RU2775126C1

RU 2 697 208 C1

Authors

Nikolaev Oleg Aleksandrovich

Arabskij Anatolij Kuzmich

Zavyalov Sergej Vladimirovich

Efimov Andrej Nikolaevich

Khasanov Oleg Sajfievich

Zuev Oleg Valerevich

Gunkin Sergej Ivanovich

Turbin Aleksandr Aleksandrovich

Talybov Etibar Gurbanali Ogly

Ponomarev Vladislav Leonidovich

Zheleznyj Sergej Petrovich

Dates

2019-08-13Published

2018-10-08Filed