| 全过程欠平衡水平井在大庆油田的应用 |
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| 引用本文： | 孙念,刘永贵,奚广春,李锁成,邢广宇. 全过程欠平衡水平井在大庆油田的应用[J]. 探矿工程, 2009, 36(5): 29-32,35 |
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| 作者姓名： | 孙念 刘永贵 奚广春 李锁成 邢广宇 |
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| 作者单位： | 中国石油大庆钻探工程公司钻井工程技术研究院,黑龙江大庆163413 |
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| 摘 要： | 南扶273-平253井是大庆油田一口重点实验井,采用全过程欠平衡技术钻进,钻探目的层位是F15油层。在全过程欠平衡钻井作业过程中,通过井下套管阀开关,保证井底始终处于欠平衡状态,成功地进行了欠平衡钻进、不压井起下钻等作业,有效地保护了储层。介绍了应用于该井的全过程欠平衡技术、井眼轨迹控制技术、设备选择以及现场出现过的问题和解决方法等。
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| 关 键 词： | 水平井 欠平衡 钻井 井眼轨迹 |
| 收稿时间： | 2008-11-17 |
| 修稿时间： | 2009-04-03 |
Application of Whole Process Underbalanced Horizontal Well in Daqing Oil Field |
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| SUN Nian,LIU Yong-gui,XI Guang-chun,LI Suo-cheng and XING Guang-yu. Application of Whole Process Underbalanced Horizontal Well in Daqing Oil Field[J]. Exploration Engineering:Rock & Soil Drilling and Tunneling, 2009, 36(5): 29-32,35 |
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| Authors: | SUN Nian LIU Yong-gui XI Guang-chun LI Suo-cheng XING Guang-yu |
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| Affiliation: | ( Drilling Technology Research Institute of PetroChina Daqing Drilling Engineering Company, Daqing Heilongjiang 163413, China) |
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| Abstract: | Nanfu 273 - Ping 253 well is an important experimental well in Daqing oil field, which was drilled by whole process unbalanced technology with the target layer of F15 oil reservoir. Unbalanced state was kept at the bottom of the well by downhole casing shut-off valve in whole process unbalanced drilling operation, the oil reservoir was protected by unbal- anced drilling and non-snubbing service. The paper introduced the whole process unbalanced technology, well trajectory control, equipment selection, the difficult problems in field and the countermeasures. |
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| Keywords: | horizontal well whole process unbalanced technology drilling well trajectory unbalance |
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