可解挂双向锚定悬挂封隔器关键技术

梁文龙; 薛占峰; 马兰荣

doi:10.11911/syztjs.2019017

可解挂双向锚定悬挂封隔器关键技术

梁文龙^1,,
薛占峰^{2, 3},
马兰荣^{2, 3}

1.
中国石化华北油气分公司，河南郑州 450006
2.
中国石化石油工程技术研究院，北京 100101
3.
页岩油气富集机理与有效开发国家重点实验室，北京 100101

基金项目: 国家科技重大专项“低渗透油气藏高效开发钻完井技术”课题五“高压低渗油气藏固井完井技术”（编号：2016ZX05021-005）部分内容

详细信息

作者简介:
梁文龙（1973—），男，河南新乡人，1996年毕业于成都理工学院石油工程专业，高级工程师，主要从事压裂工艺及配套工具方面的研究与相关技术管理工作。E-mail：erdoszhb@126.com

中图分类号: TE925
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出版历程
- 收稿日期: 2018-07-09
- 修回日期: 2019-03-07
- 网络出版日期: 2019-03-20
- 刊出日期: 2019-06-30

Key Technologies for a Detachable Bi-Directional Anchoring Suspension Packer

1.
Sinopec Huabei Oil and Gas Company, Zhengzhou, Henan, 450006, China
2.
Sinopec Research Institute of Petroleum Engineering, Beijing, 100101, China
3.
State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effertive Development, Beijing, 100101, China

摘要

摘要:
针对常规双向锚定封隔器存在的提前坐挂坐封、密封失效和坐封后无法解挂等问题，研制了集成重载锚定、高压密封、防提前坐封和解挂等多种功能的可解挂双向锚定悬挂封隔器，开展了高承载技术、高压密封技术、防提前坐封技术和解挂技术等关键技术研究，并采用有限元方法分析了整体式卡瓦张开后的应力应变情况。性能测试结果表明，各功能单元的性能参数均达到了设计要求。可解挂双向锚定悬挂封隔器在20多口井进行了现场应用，坐挂坐封均成功，解决了常规双向锚定封隔器存在的问题。可解挂双向锚定悬挂封隔器的成功研制，为多种完井工艺的顺利实施提供了一种可靠的锚定封隔工具。
- 封隔器 /
- 双向锚定 /
- 分段压裂 /
- 可解挂
Abstract:
Due to the fact that the conventional bi-directional anchoring packer has problems, which include pre-setting/suspending, sealing failure, and failed detachment after packer setting, the detachable bi-directional anchoring suspension packer that has multi-functionality, including heavy-load anchoring, high-pressure sealing, prevention of pre-setting and detachment was developed. The technical research was conducted on high load-bearing technology. In addition, they studied high pressure sealing technology, and the prevention of pre-setting and detachment. A finite element method was used to analyze the stress and strain after the integrated slip is opened. The results of the surface performance evaluation showed that the performance parameters of each module could meet design requirements. The field application of this packer has been conducted in 20 wells, and the suspension and setting were all successful, which solves the hidden dangers of conventional bi-directional anchoring packers. The successful development of detachable bi-directional anchoring suspension packer provides a reliable anchoring and sealing tool for the smooth implementation of various completion technologies.
- packer /
- bi-directional anchoring /
- staged fracturing /
- detachment

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图 1 可解挂双向锚定悬挂封隔器结构

Figure 1. Structure of detachable bi-directional anchoring suspension packer

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图 2 整体式卡瓦的结构

Figure 2. Structure of integrated slip

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图 3 整体式卡瓦受力分析结果

Figure 3. Force analysis results of integrated slip

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图 4 密封装置的组成

Figure 4. Structure of sealing device

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图 5 防提前坐封装置的结构

Figure 5. Structure of pre-setting prevention device

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图 6 可解挂式双向锚定封隔器与解挂工具的结构

Figure 6. Structure of the detachable bi-directional anchoring packer and detachment tool

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图 7 卡瓦悬挂能力测试曲线

Figure 7. Test curve of the slip suspension capacity

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图 8 封隔器密封性能测试曲线

Figure 8. Curve for the packer pressure-sealing performance

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表 1 整体式卡瓦材料的参数

Table 1 Materials parameters of integrated slip

材料	弹性模量/GPa	泊松比	屈服强度/MPa
20CrMnTi	207	0.25	850
35CrMo	206	0.30	758

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