克拉美丽气田天然气烃水露点控制工艺改造.pdf

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石油与天然气化工
CHEMICAL ENGINEERING OF OIL &. GAS
2013
克拉美丽气田天然气烃水露点控制工艺改造
曹洪责蒋洪陶玉林李虎王楚琦
1.新疆油田公司采气一厂2.西南石油大学石油工程学院
摘要克拉美丽气田天然气处理站烃水露点控制工艺采用J-T門节流制冷,注乙二醇防冻
的低温分离工艺,但其外输天然气烃水露点出现不稳定、不合格现象。应用 HYSYS软件根据天然
气处理流程的物料及能量平衡评价烃水露点控制工艺,结果为;高压节流注醇エ艺选择合理;通过
对其核心设备包括低温分离器和气一气換热器结构及工作性能分析,找出烃水露点不合格的主要原
因是低温分离器和气气换热器选型不合理。根据克拉美丽天然气处理站烃水露点不合格原因提
出了改造方策:沿用高压节流注醇エ艺,其关鍵设备选型采用两台管売式換热器(固定管板式)串联
+ SMMSM高效分离器的组合方案,将外輸天然气烃水露点计算值控制在-13C左右,考虑低温
分离器与烃水露点的实际温差,可控制外输气烃水露点能达到小于-5℃的要求。
关键词烃水露点控制方案改造重力式分离器管壳式换热器
中图分类号:TFE644文献标志码:BDO1:10.3969/j.issn.1007-3426.2013.04.003
Technology transformation of hydrocarbon and water dew point
control process in Kelameili gas field
10 Hogg
Tao Yulin, Li Hul. W:
(1. No. 1 Gas Recovery Factory of Xinjiang Oilfield, Karamay 834000, Xinjiang, China
(2. Petroleum Engineering College, Southwest Petroleum University, Chengdu 610500, Sichuan, China)
Abstract: The hydrocarbon and water dew point control process of natural gas treatment plant
in Kelameili gas field adopts a low temperature separation process by J-T valve refrigeration and
glycol antifreezing, but hydrocarbon and water dew point of the transported natural gas is unsta
bie and unqualified. According to material and energy balance of natural gas, HYSYS software is
used to evaluate hydrocarbon and water dew point control process. The results show that process
selection is reasonable. Based on the analysis of structure and working performance of core equip
ments including low temperature separator and gas-gas heat exchanger, the main reason of hy-
drocarbon and water dew point unqualified is the unreasonable selection of low temperature sepa-
rator and gas-gas heat exchanger. A transformation scheme is proposed: the high pressure throt
tle technology is continued to use; the key equipment selection involves two tube and shell heat
exchanger(fixed tube plate) series+SMMSM high efficiency separator, and the calculation value
of hydrocarbon and water dew point of transmission natural gas is controlled at13 C or so
Considering of the temperature difference, the hydrocarbon and water dew point can be decreased
to less th
5 C
作者简介:曹洪贵(1982一),男,四川荣县人,2006年毕业于西南石油大学石油工程专业,本科,工程师,现任新疆油田采
气ー厂工艺研究所副所长。主要从事天然气开发方面的研究工作。地址:(834000)新疆克拉玛依新疆油田公司采气一厂。电
if:0990-6812533.E-mail:caohg@petrochina.com.cn