| Y422可取压裂桥塞的研制与应用 |
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| 引用本文： | 吴恩成,赵骊川,张书进,何艳. Y422可取压裂桥塞的研制与应用[J]. 石油机械, 2005, 33(12): 34-35 |
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| 作者姓名： | 吴恩成 赵骊川 张书进 何艳 |
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| 作者单位： | 1. 大庆石油学院石油工程学院;大庆油田有限责任公司采油工程研究院
2. 大庆油田有限责任公司采油工程研究院 |
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| 基金项目： | 该桥塞为大庆油田有限责任公司科研攻关课题“多层段桥塞法压裂技术研究”（2004G0109）中的部分研究成果. |
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| 摘 要： | 针对大庆油田开采薄差油层压裂的需要,研制了一种Y422可取压裂桥塞。该桥塞主要由打捞机构、平衡旁通、密封机构、锚定机构、坐封解封机构、锁紧机构等部分组成。该工具承压差70MPa,耐温120,与其它工具配合使用,一趟管柱能够完成3～4个层段的压裂,施工工艺简单,操作安全可靠;可进行大跨距压裂,满足高砂比、欠替挤压裂施工要求,且一次下井可多次重复使用。现场应用20余井次,施工成功率100%。
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| 关 键 词： | 可取压裂桥塞 结构设计 现场应用 |
| 收稿时间： | 2005-09-11 |
| 修稿时间： | 2005-09-11 |
Development and application of Y422 retrievable bridge-plug used for fracture |
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| Wu Encheng. Development and application of Y422 retrievable bridge-plug used for fracture[J]. China Petroleum Machinery, 2005, 33(12): 34-35 |
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| Authors: | Wu Encheng |
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| Abstract: | In consideration of the needs of thin and poor reservoir fracturing in Daqing Oilfield, Y422 retrievable bridge plug is developed. The plug is composed of a fishing mechanism, balance bypass, sealing mechanism, anchoring mechanism and locking device. It is lowered into the hole along with other tools, and 3-4 sections of fracturing can be carried out with one trip of string. Its process is easy, and operation is safe and reliable. It is suitable for big-span fracturing and high sand ratio fracturing and can used repeatedly with pressure differential of 70 MPa, temperature tolerance of 120 ℃. Field application is made in more than 20 wells with success ratio of 100%. |
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| Keywords: | retrievable fracture bridge-plug structural design field application |
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