张光普, 陈继明, 张效羽, 董事尔, 李学忠, 刘积松, 孙建华, 孟令祥. 我国油田套管损坏的原因探讨[J]. 石油钻采工艺, 1996, 18(5): 7-12. DOI: 10.3969/j.issn.1000-7393.1996.05.002
引用本文: 张光普, 陈继明, 张效羽, 董事尔, 李学忠, 刘积松, 孙建华, 孟令祥. 我国油田套管损坏的原因探讨[J]. 石油钻采工艺, 1996, 18(5): 7-12. DOI: 10.3969/j.issn.1000-7393.1996.05.002
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Zhang Xianpu, Chen Jiming, Zhang Xiaoyu, Dong Shier, Li Xuezhong, Liu Jisong, Sun Jianhua, Meng Lingxiang. DISCUSSION ON CAUSES OF CASING FAILURE IN OILFIELDS[J]. Oil Drilling & Production Technology, 1996, 18(5): 7-12. DOI: 10.3969/j.issn.1000-7393.1996.05.002
Citation: Zhang Xianpu, Chen Jiming, Zhang Xiaoyu, Dong Shier, Li Xuezhong, Liu Jisong, Sun Jianhua, Meng Lingxiang. DISCUSSION ON CAUSES OF CASING FAILURE IN OILFIELDS[J]. Oil Drilling & Production Technology, 1996, 18(5): 7-12. DOI: 10.3969/j.issn.1000-7393.1996.05.002
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我国油田套管损坏的原因探讨

DISCUSSION ON CAUSES OF CASING FAILURE IN OILFIELDS

    摘要
  • 摘要: 近年来,我国油田套管损坏速度呈直线上升趋势,有的井不足1年时间,有的井刚完井1个月套管就坏了,给原油生产带来重大损失。套管损坏,一是套管柱设计不合理,特别是在盐岩、泥(页)岩地层,设计载荷偏小;二是不合理的注水,加速了套管的损坏;三是套管柱强度设计本来就不富余,射孔给套管带来一定的损害,加速了套管损坏;四是套管的外腐蚀使套管穿孔造成内腐蚀,腐蚀使套管更易损坏;五是油层出砂、固井质量、套管缺陷等使套管损坏。造成套管损坏的因素很多,具体到每口井必然有一些主要因素,找到主要因素才好采取防范措施。

     

    Abstract: Casing failure is increasing rapidly in recent years.Some wells,for instance,were found the casing damaged only a year or even a month after completion.It has caused great losses to oilfield’s production.Those causes of casing failure are:1.unreasonable design of casing string(especially in salt bed and mudstone(shale) formation);2.unreasonable water injection;3.casing Perforation;4.corrosion;5.sand problems,cementing quality and casing defect.

     

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