本文關(guān)鍵詞： 克拉氣田 烴露點 反凝析現(xiàn)象 改進流程　出處：《石油與天然氣化工》2017年02期 　論文類型：期刊論文

【摘要】：克拉氣田某處理廠采用三甘醇脫水工藝對原料氣進行脫水處理,脫水后的干氣水露點合格,但烴露點較高。由于天然氣具有反凝析現(xiàn)象,隨著干氣在輸送過程中壓力的降低,會有液態(tài)烴析出,從而對管道、設(shè)備、下游用戶造成不同程度的危害。為了達到合格的烴露點,避免液態(tài)烴的析出,根據(jù)我國國家標準對烴露點的不同規(guī)定,提出了烴露點控制的改進流程及兩種烴露點的控制方案。使用HYSYS軟件進行模擬比較,確定采用GB 17820-2012《天然氣》對天然氣烴露點的控制要求,以保證處理廠至輪南首站的外輸管線內(nèi)無液態(tài)烴析出。同時,對氣-氣換熱器和低溫分離器進行初步選型,并提出了反凝析現(xiàn)象的控制措施。
[Abstract]:In a treatment plant of Kela gas field, the raw gas was dehydrated by triethylene glycol process. The dry gas water dew point was qualified after dehydration, but the hydrocarbon dew point was higher. Due to the reverse condensate phenomenon of natural gas, the pressure of dry gas in the transportation process decreased. There will be liquid hydrocarbon precipitation, which will cause varying degrees of harm to pipelines, equipment and downstream users. In order to achieve qualified hydrocarbon dew points and avoid liquid hydrocarbon precipitation, according to the different regulations of China's national standards on hydrocarbon dew points, The improved flow chart of hydrocarbon dew point control and the control scheme of two kinds of hydrocarbon dew point are put forward. The control requirements of natural gas hydrocarbon dew point by using GB 17820-2012 are determined by using HYSYS software to carry out simulation and comparison. In order to ensure that there is no liquid hydrocarbon precipitation in the pipeline from the treatment plant to the first station in Lunnan, the preliminary selection of gas-gas heat exchanger and cryogenic separator is carried out, and the control measures of reverse condensate phenomenon are put forward.
【作者單位】： 西南石油大學;
【分類號】：TE64

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本文編號：1494430