| 克拉玛依油田二厂八区套管破损机制研究 |
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| 引用本文： | 高先超,张新荣,方石,袁述武,张冠杰,沈伟,张雷.克拉玛依油田二厂八区套管破损机制研究[J].世界地质,2018,37(2):567-578. |
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| 作者姓名： | 高先超 张新荣 方石 袁述武 张冠杰 沈伟 张雷 |
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| 作者单位： | 1. 吉林大学 地球科学学院, 长春 130061;2. 新疆油田分公司采油二厂, 新疆 克拉玛依 834000;3. 新疆万盾能源科技有限责任公司, 新疆 克拉玛依 834000 |
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| 基金项目： | 国家自然科学基金项目（41472173，40902057，40702027）和国土资源部公益性行业科研专项经费项目（201311111）联合资助. |
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| 摘 要： | 克拉玛依油田二厂八区井区经过长期开采出现了大量的套管破损问题。对套管破损位置进行总结归纳发现,套管破损主要存在于白垩系吐谷鲁群、侏罗系齐古组、二叠系乌尔禾组等地层中。对研究区连井进行地层对比、地震数据体进行波阻抗反演和砂体分析,发现研究区内白垩系吐谷鲁群和侏罗系齐古组的砂体十分发育,广泛存在于整套地层中。砂体中流体的渗流作用对套管的腐蚀为套管破损的主要因素。泥岩吸水蠕变膨胀、油层出砂和固井质量不合格为套管破损的其他因素。
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| 关 键 词： | 套管破损 腐蚀 泥岩吸水 油层出砂 固井质量 |
| 收稿时间： | 2018-01-15 |
| 修稿时间： | 2018-03-12 |
Research on casing damage mechanism of No.8 block of No.2 plant in Karamay oilfield |
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| GAO Xian-chao,ZHANG Xin-rong,FANG Shi,YUAN Shu-wu,ZHANG Guan-jie,SHEN Wei,ZHANG Lei.Research on casing damage mechanism of No.8 block of No.2 plant in Karamay oilfield[J].World Geology,2018,37(2):567-578. |
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| Authors: | GAO Xian-chao ZHANG Xin-rong FANG Shi YUAN Shu-wu ZHANG Guan-jie SHEN Wei ZHANG Lei |
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| Institution: | 1. College of Earth Sciences, Jilin University, Changchun 130061, China;2. No.2 Oil Production Plant of Xinjiang Oilfield Branch, Karamay 834000, Xinjiang, China;3. Wan-dun Energy Technology Limited Liability Company of Xinjiang, Karamay 834000, Xinjiang, China |
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| Abstract: | A lot casing failures have occurred after long-term production in No.8 block of No.2 plant in Karamay oilfield. The summary of casing damage locations indicates that casing damage is mainly found in the Cretaceous Tugulu Group, the Jurassic Qigu Formation and the Permian Urho Formation. Based on the stratigraphic correlation of the wells in the study area, seismic acoustic impedance inversion and the sand body analysis, it was found that the sand bodies are well developed and widely occurred in the Cretaceous Tugulu Group and the Jurassic Qigu Formation. In the sand bodies, corrosion of casing by seepage of fluid is the main factor of the casing damage. In addition, mudstone expansion after water absorption, oil sand production and cementation quality failure are other factors causing casing damage. |
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| Keywords: | casing damage corrosion mudstone water absorption oil sand production cementation quality |
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