Development and Application of Snubbing?Delivery Well-head Protection Assembly

doi:10.3969/J. ISSN.1006-768X.2021.04.20

Drilling & Production Technology ›› 2021, Vol. 44 ›› Issue (4): 86-89.DOI: 10.3969/J. ISSN.1006-768X.2021.04.20

• DRILLING & PRODUCTION EQUIPMENT • Previous Articles Next Articles

Development and Application of Snubbing?Delivery Well-head Protection Assembly

HAN Xianghai¹ , PING Enshun¹ , AN Xiaoping², WANG Lin¹ , HE Yanfei¹, WANG Zhimin¹ , HUANG Feng¹

1 . Downhole Technology Service CO. , CNPC Bohai Drilling Engineering CO. , LTD. , Tianjin 300283, China; 2. The Fourth Oil Production Plant ofPetroChina Dagang Oilfield CO. , Dagang, Tianjin 300280, China

Online:2021-07-25 Published:2021-07-25

带压投送井口保护装置的研制及应用

韩祥海¹, 平恩顺¹, 安小萍², 王林¹, 贺燕飞¹, 王志民¹, 黄峰¹

1 中国石油集团渤海钻探工程有限公司井下技术服务分公司 2 中国石油大港油田公司第四采油厂(滩海开发公司)

作者简介:韩祥海(1975-) , 高级工程师,1999 年毕业于大庆石油学院石油与天然气地质勘查专业, 现主要从事井控技术方面的研究工作。地址: (300283) 天津市滨海新区大港油田港西大道 640 号渤海钻探井下技术服务分公司, 电话:15922276567, Email: hanxianghai@ cnpc.com. cn
基金资助:
中石油重大科技专项“ 大港油区效益增储稳产关键技术研究与应用—闭塞湖盆致密油增储建产一体化关键技术研究” ( 编号:2018E-11-03) 和中国石油集团渤海钻探局级指导性研究项目“ 液压伺服驱动的带压投送油管封隔器技术研究”( 编号:2018Z33 K) 联合资助。

Abstract

Abstract:

In order to solve the contradiction between pressure bearing of 350 Christmas tree and pressure limit of acidification construction, the tubing packer is delivered to the predetermined position inside the tubing under pressure and set, to achieve internal plugging of the tubing and isolate the internal pressure passage of the tubing, thereby protecting the wellhead device and performing normal acidification operations. So, a new type snubbing delivery wellhead protection assembly was developed. The main structure, working principle, main technical performance parameters as well as performance characteristics of the snubbing delivery wellhead protection assembly were introduced. The water injection well without moving column acidification construction process was further perfected, and was carried out field test in Dagang Oilfield well Ban X. The field test results show that the snubbing delivery well-head protection assembly successfully completed water injection wells without moving column acidification construction process, and set a maximum pressure record without moving column acidification construction of 350 type Christmas tree in Dagang Oilfield with more extensive application prospects.

Key words: 350 Christmas tree, snubbing delivery well-head protection assembly, water injection wells, without moving column acidification construction, field test

摘要： 为解决350采油树承压与酸化施工限压之间的矛盾，将油管封隔器在带压状态下投送至油管内部预定位置并坐封，实现油管内部封堵，隔离油管内部压力通道，从而保护井口装置，进行正常的酸化作业，因此研制了一种新型带压投送井口保护装置。介绍了带压投送井口保护装置的主要结构、工作原理、主要技术性能参数以及性能特点，进一步完善了注水井不动管柱酸化施工工艺，并在大港油田板Ｘ井进行了现场应用。现场应用结果表明，带压投送井口保护装置成功完成了注水井不动管柱酸化施工，创大港油田350 型采油树不动管柱酸化施工最大压力记录，具有较广泛的应用前景。

关键词: ３５０采油树, 带压投送井口保护装置, 注水井, 不动管柱酸化施工, 现场试验

HAN Xianghai, PING Enshun, AN Xiaoping, WANG Lin, HE Yanfei, WANG Zhimin, HUANG Feng. Development and Application of Snubbing?Delivery Well-head Protection Assembly[J]. Drilling & Production Technology, 2021, 44(4): 86-89.

韩祥海, 平恩顺, 安小萍, 王林, 贺燕飞, 王志民, 黄峰. 带压投送井口保护装置的研制及应用[J]. 钻采工艺, 2021, 44(4): 86-89.

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Development and Application of Snubbing?Delivery Well-head Protection Assembly

带压投送井口保护装置的研制及应用

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