| 冷科1井?139.7mm油层套管双级固井技术 |
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| 引用本文： | 齐奉中,王文凯.冷科1井?139.7mm油层套管双级固井技术[J].石油钻采工艺,1999,21(5):32-36. |
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| 作者姓名： | 齐奉中 王文凯 |
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| 作者单位： | 1.石油勘探开发科学技术研究院廊坊分院 |
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| 摘 要： | 冷科1井位于柴达木盆地冷潮五号,是石油天然气集团公司的1口重点科学探索井。完钻井深5200m,?139.7mm油层套管下深4854.63m,封固段从套管鞋到井口,钻井液密度为1.80g/cm3,井底循环温度达到120℃。在高温、高压、长封固段井中综合采用提高顶替效率、防气窜、高密度水泥浆等技术措施后,双级固井取得成功,固井质量优质。
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| 关 键 词： | 油层套管 固井 防窜 顶替 固井质量 |
| 收稿时间： | 2019-05-23 |
TWO STAGE CEMENTING METHOD FOR 139.7mm PRODUCTION CASING IN WELL LENGKE-1 |
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| Qi Fengzhong,Wang Wenkai.TWO STAGE CEMENTING METHOD FOR 139.7mm PRODUCTION CASING IN WELL LENGKE-1[J].Oil Drilling & Production Technology,1999,21(5):32-36. |
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| Authors: | Qi Fengzhong Wang Wenkai |
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| Affiliation: | Qi Fengzhong;Wang Wenkai |
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| Abstract: | Well Lengke-1,located in No.5 block,Lenghu of Chaidam Basin,is a key scientific investigation well of CNPC.The.drilling depth is 5200m,and 139.7mm production casing was set to the depth of 4854.63m.The cementing interval is from the casing shoe to the wellhead.The mud density is 1.80g/cm3.The bottomhole circulating temperature is 120℃.The two stage cementing method is succeeded with high quality,after measures such as the enhanced displacement efficiency,channeling prevention and high density slurry method are used in high temperature,high pressure and long-distance cementing interval. |
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| Keywords: | production casing well cementing channeling prevertion displace cementing quality |
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