• 主题
高级搜索  >
历史搜索 清空历史
首页> 外国专利> METHOD FOR AUTOMATIC CONTROL OF LOW-TEMPERATURE GAS SEPARATION AT OIL AND GAS CONDENSATE FIELDS IN THE NORTH OF THE RUSSIAN FEDERATION

METHOD FOR AUTOMATIC CONTROL OF LOW-TEMPERATURE GAS SEPARATION AT OIL AND GAS CONDENSATE FIELDS IN THE NORTH OF THE RUSSIAN FEDERATION

机译：俄罗斯联邦北北方石油和天然气冷凝物田的低温气体分离的自动控制方法

页面导航
  • 摘要
  • 著录项
  • 相似文献

摘要

FIELD: oil and gas industry.;SUBSTANCE: claimed method for automatic control of low-temperature gas separation in oil and gas condensate fields in the north of the Russian Federation. The method includes primary cleaning in the separator of the first stage of separation of the produced gas-condensate mixture from mechanical impurities, an aqueous solution of an inhibitor - ASI and heavy hydrocarbons of unstable gas condensate - UGC, which, as they accumulate in the lower part of this separator, are diverted to a liquid separator - LS for its separation into components and degassing. The weathering gas is disposed of. ASI is sent for regeneration. UGC is fed with the help of a pumping unit to the main condensate pipeline - MCP. The purified gas-condensate mixture at the outlet of the separator of the first separation stage is divided into two streams. One stream is fed to the inlet of the first section of the recuperative heat exchanger - HE "gas-gas". The second flow through the valve-regulator - VR is directed to the inlet of the first section of the "gas-condensate" HE. At the exit from the first sections of these HE, the flows are combined and the combined flow is fed through the reducing choke into the low-temperature separator, in which the final separation of the dried gas from the ASI and UGC solution is carried out, which, as it accumulates in the lower part of the low-temperature separator, is sent to the VR through the second section "gas-condensate" HE, providing cooling of the flow of the produced gas-liquid mixture passing through its first section. The dried gas from the outlet of the low-temperature separator through the second section of the "gas-gas" HE is fed for cold recovery to the second flow of the produced gas-liquid mixture passing through the first section of the same HE. Then it is sent to the main gas pipeline – MGP. A VR controlled by a proportional-integral-differentiating - PID controller is installed, which is built on the basis of an automated process control system of the installation, on the bypass line of the second section of the "gas-gas" HE. The input of this PID controller and the PID controller, which controls the distribution of the produced gas-liquid mixture between the first sections of the gas-gas and gas-condensate HE, is fed a single value of the temperature setpoint signal in the low-temperature gas separator, which must the current operating conditions of the field in a given range, and at the same time a signal from the temperature sensor in the low-temperature separator is fed to the feedback input of the same PID controllers. By processing these signals, these PID controllers generate control signals for their VRs at their outputs. The amount of dried gas passing through the bypass line of the second section of the "gas-to-gas" HE, and the flows of the produced gas-condensate mixture passing through the first sections of the "gas-gas" and "gas-condensate" HE are controlled, and thus the temperature is kept in the low-temperature separator in a predetermined range, and at the same time control the temperature value of the dried gas entering the MGP and the temperature of the UGC supplied to the MCP. All these operations are performed using the APCS.;EFFECT: invention increases the efficiency of the process of preparing natural gas and STC for long-distance transport with the optimization of the use of reservoir energy for the process of low-temperature gas separation and improving the quality of prepared products supplied to consumers.;2 cl, 2 dwg
机译：田地：石油和天然气工业。;物质：俄罗斯联邦北方石油和天然气冷凝水中低温气体分离的索赔方法。该方法包括从机械杂质分离的第一阶段的分离器中的初级清洁，从机械杂质，抑制剂 - ASI和不稳定气体缩合物的重质烃的水溶液，因为它们积聚在内该隔膜的下部转移到液体分离器 - LS中，以分离成分和脱气。耐候气体被处理。 ASI被送入再生。 UGC伴随着泵送单元到主要的冷凝水管道 - MCP。将第一分离阶段的隔膜出口处的纯化的气体冷凝物混合物分成两个流。将一个流送入恢复热交换器的第一部分的入口 - 他“气体气体”。通过阀调节器 - VR的第二流涉及“气凝液”的第一部分的入口。在从这些HE的第一部分的出口处，组合流动并将组合的流动通过将减速器进入低温分离器，其中对干燥气体与ASI和UGC溶液的最终分离进行其中，当它在低温分离器的下部积累时，通过第二部分“气凝块”送到VR，提供通过其第一部分的产生的气液混合物的流动冷却。从低温分离器出口的干燥气体通过“气体气体”的第二部分，他被加入冷却到产生的气液混合物的第二流动，通过其的第一部分。然后它被送到主气管线 - MGP。由比例 - 积分 - 微区分 - PID控制器控制的VR，基于安装的自动化过程控制系统，在“气体气体”的第二部分的旁路线上构建。该PID控制器的输入和PID控制器，其控制气体气体和气凝液的第一部分之间产生的气液混合物的分布，以低温为低温设定点信号的单一值。 - 温度的气体分离器，必须在给定范围内的场的电流运行条件，并且在低温分离器中的来自温度传感器中的信号被馈送到相同PID控制器的反馈输入。通过处理这些信号，这些PID控制器在其输出处产生VRS的控制信号。穿过“气 - 气”的第二部分的旁通管线的干燥气体的量，以及通过“气体气体”和“气体的第一部分的产生的气凝酯混合物的流动的流动 - 将细化物“控制，因此温度在预定范围内保持在低温分离器中，同时控制干燥的气体进入MGP的温度值和提供给MCP的UGC的温度。所有这些操作都是使用APC进行的。;效果：发明增加了制备天然气和STC的过程的效率，以便利用储层能量的使用用于低温气体分离和改善的过程为消费者提供的准备产品的质量。; 2 Cl，2 DWG

著录项

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号