本文關鍵詞：蘇里格天然氣水系統(tǒng)管線腐蝕及防護研究　出處：《西安石油大學》2015年碩士論文　論文類型：學位論文

  更多相關文章： 管線腐蝕 掛片實驗 腐蝕影響因素 防腐措施

【摘要】：在蘇里格氣田天然氣的開采中,地層水會侵入氣藏并伴隨天然氣一同被采出,將氣田采出水進行簡單處理后再回注,既可以減少環(huán)境污染,又可以節(jié)約水資源。但是隨著氣田采出水處理系統(tǒng)的運行,污水處理系統(tǒng)常常出現(xiàn)管線刺漏、設備腐蝕穿孔的現(xiàn)象,嚴重影響著生產(chǎn)的正常運行,造成了嚴重的經(jīng)濟損失。本課題針對蘇里格天然氣處理廠水處理系統(tǒng)管線腐蝕的具體情況。通過對蘇里格氣田采出水進行水質(zhì)分析,確定水質(zhì)的離子成分及特性,并對管線中的腐蝕產(chǎn)物進行電鏡掃描、能譜分析、X衍射。并且通過對影響20#鋼腐蝕的各種因素進行了室內(nèi)實驗研究,得出了溫度、含氧量、Cl-含量、PH值、流速、振動等對20#鋼的腐蝕速率的影響規(guī)律。用靜態(tài)掛片實驗篩選出適合蘇里格氣田采出水水質(zhì)特征的殺菌劑、緩蝕劑及加量濃度。本文從應用的可行性和經(jīng)濟性角度出發(fā),對蘇里格氣田污水的腐蝕問題進行實際調(diào)查、實驗和理論分析,設計了一套適合蘇里格氣田污水現(xiàn)場應用的防腐措施方案。
[Abstract]:In the exploitation of natural gas in Sulige gas field, formation water will invade the gas reservoir and be produced along with natural gas. It can reduce the environmental pollution by simply treating the produced water of the gas field and re-injecting it. But with the operation of the water treatment system in the gas field, the sewage treatment system often appears pipeline leakage, equipment corrosion perforation phenomenon, which seriously affects the normal operation of production. This subject aims at the concrete condition of pipeline corrosion in water treatment system of Sulige natural gas treatment plant. Through the analysis of the produced water quality of Sulige gas field. The ion composition and characteristics of water quality were determined, and the corrosion products in the pipeline were scanned by electron microscope and analyzed by X-ray diffraction. The laboratory experiments were carried out on various factors affecting the corrosion of 20 # steel. The pH value and flow rate of the temperature, oxygen content and Cl-content are obtained. The effect of vibration on the corrosion rate of 20 # steel was studied. The fungicides suitable for the characteristics of produced water quality in Sulige gas field were screened by static hanging test. From the point of view of feasibility and economy of application, the corrosion problem of sewage in Sulige gas field is investigated, tested and analyzed theoretically. A set of anticorrosive measures suitable for the field application of sewage in Sulige gas field is designed.
【學位授予單位】：西安石油大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TE986

【參考文獻】

相關期刊論文 前10條

1 趙景茂,左禹,熊金平,田連朋;pH值對低碳鋼在高含鹽污水中的腐蝕影響[J];材料保護;2001年07期

2 周云,付朝陽,鄭家q，

本文編號：1393046