新型封隔式尾管悬挂器的研制及应用

Development and application of new isolated liner hanger

刘国祥 郭朝辉 孙文俊 赵德利 初永涛 万斌

LIU Guoxiang GUO Zhaohui SUN Wenjun ZHAO Deli CHU Yongtao WAN Bin

中国石化石油工程技术研究院德州大陆架石油工程技术有限公司，山东德州　253000 中国石化石油工程技术研究院，北京　100029 中国石油化工股份有限公司西南油气分公司，四川成都　610016

Continental Shelf Petroleum Engineering Technology Co., Ltd., SINOPEC Research Institute of Petroleum Engineering, Dezhou 25300, China SINOPEC Research Institute of Petroleum Engineering, Beijing, 100029, China Southwest Oil & Gas Branch Company of SINOPEC, Chengdu 610016, China

为适应元坝地区高温高、高压、高含硫等，以及高固相井况条件，解决环空气窜问题，研发了新型封隔式尾管悬挂器。封隔器单元采用单胶筒结构，保证了工具的安全可靠性。防退卡瓦结合内部防退卡簧结构设计，有效减小了胶筒胀封后的回弹间隙，保证了封隔器的封隔能力。现场4 口井的应用效果分析表明，该工具使用安全性及使用效果，总体上达到了设计要求，初步解决了元坝气田环空气窜难题。

In order to adapt to high temperature, high pressure, high sulfur content and high solid wellbore conditions in Yuanba region, a new isolated liner hanger was developed to solve the gas channeling problem of hollow ring. The packer unit uses single-barrel structure, which ensures safety and reliability of the tool. The retrieve-proof slip is designed along with the internal retrieve-proof spring structure, which effectively reduces the rebound clearance after expansion of the barrel and ensures the isolation capacity of the packer. Application of the tool in four wells shows that this tool satisfies the design requirement in terms of safety and effectiveness and solves the problem of gas channeling in annulus in Yuanba Gas Field.

10.13639/j.odpt.2014.05.030