油套管的服役條件及產(chǎn)品研制開發(fā)現(xiàn)狀(上)
Service Conditions and Current R & D Situation of Oil Tubing and Casing（PartⅠ）
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摘要: 我國油井管制造廠和油田用戶密切合作,結(jié)合油田實(shí)際,聯(lián)合研發(fā)攻關(guān),極大地推進(jìn)了油井管的國產(chǎn)化進(jìn)程,使油套管產(chǎn)量、品種規(guī)格和質(zhì)量實(shí)現(xiàn)根本性轉(zhuǎn)變。簡要介紹了油套管柱的力學(xué)、環(huán)境服役條件及油套管失效的類型及原因。綜述了油套管產(chǎn)品研發(fā)的進(jìn)展和現(xiàn)狀,建議進(jìn)一步加強(qiáng)非API鋼級(jí)、特殊螺紋連接油套管和特殊用途油井管的開發(fā),提出應(yīng)解決的突出技術(shù)問題并注意評(píng)價(jià)標(biāo)準(zhǔn)的建立和評(píng)價(jià)方法的科學(xué)性。Abstract: Taking the actual circumstances of oil fields into consideration,domestic OCTG manufacturers and the end-users have been closely cooperating in R & D activities,which has tremendously speeded up the localization pace of OCTG production,and brought about radical improvement on production capacity,types and sizes as well as quality of the oil tubing and casing.Briefed here in the article are mechanical and environmental service conditions of tubing and casing columns and types of and causes for failures of the oil tubing and casing.Also presented are the progress and current situation relating R & D of oil tubing and casing products.It is proposed that development of non-API steel grade tubing and casing with premium thread connections and special-purposed OCTG should be strengthened.Critical technical issues that need to be solved are pointed out.Finally it is emphasized to build up relevant evaluation criteria and methods in a rather scientific way.
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