• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Society of Petroleum Engineers Coiled Tubing and Well Intervention Conference and Exhibition >First Successful HP/HT Coiled Tubing Milling Job in the Norwegian Continental Shelf Deployed With Telemetry: Kvitebjoern Case Study and Lessons Learned
【24h】

First Successful HP/HT Coiled Tubing Milling Job in the Norwegian Continental Shelf Deployed With Telemetry: Kvitebjoern Case Study and Lessons Learned

机译：首先成功的HP / HT盘绕管铣刀在挪威大陆架部署的遥测：KviteBjoern案例研究和经验教训

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Kvitebjoern is a Statoil operated gas and condensate field that lies in block 34/11 in the Norwegian North Sea. The reservoir lies about 4,000 meters down, and features high pressure and temperature conditions (770 bar and 160 deg C). 34/11-A-9 T2 well was drilled as a gas producer by end of October 2009 and completed in February 2010. During the final completion phase, it was not possible to open the High Pressure/High Temperature (HP/HT) isolation ball valve set in the 9 7/8” liner at 6245.7 m MD / 3795.8 m TVD through pressure cycling. After several failed attempts to open the isolation ball valve with wireline using mechanical override tools, it was decided to punch above it to allow well production passing the outside of the valve through the annulus between 9 7/8” liner and the 5 ?” tail pipe. However, the production performance was poor. A feasibility study was carried out to evaluate available methods for opening or milling out the valve with the objective to improve the production characteristics. The well is an exploration well and an important objective for the operation was also to allow access for future production logging tools. The decision was then taken to mill the stuck-closed isolation ball valve using Coiled Tubing (CT). The operation presented several critical challenges. Statoil had not performed any HP/HT CT operations and the available experience was limited. To minimize uncertainty relating to depth determination during the milling operation, it was decided to use a telemetry system run at its operational pressure and temperature limits to provide real time Casing Collar Locator (CCL) reading in addition to downhole pressure and temperature data. The paper covers the detailed planning phase for this first successful HP/HT CT milling job in the Norwegian Continental Shelf including experience with use of telemetry system. It illustrates the relevant well and reservoir data, operational steps, well control stack up configuration, operational risk analysis and lessons learned during the job execution leading up to successfully milling out the isolation ball valve with a 4” dome mill.
机译：Kvitebjoern是一个驻星运行的气体和凝析领域，位于挪威北海的34/11块。水库下降约4,000米，具有高压和温度条件（770巴和160℃）。 34/11-A-9 T2井是2009年10月底作为天然气生产商钻井，并于2010年2月完成。在最终完成阶段，不可能打开高压/高温（HP / HT）隔离在9 7/8” 衬垫在6245.7米MD /3795.8米通过压力循环TVD球阀集。经过几次使用机械覆盖工具打开隔离球阀的次隔离球阀，决定在其上方打孔以允许通过9 7/8“衬里和5的星形来穿过阀门外部的生产。尾管。但是，生产表现差。进行了可行性研究以评估可用的方法，以便在阀门打开或铣削阀门，以提高生产特性。井是一个探索良好的探索，并对操作的重要目标也允许访问未来的生产测井工具。然后将该决定采用卷绕管（CT）铣削桩闭隔离球阀。该行动呈现了几个关键挑战。 Statoil未执行任何HP / HT CT操作，并且可用的经验有限。为了最小化与铣削操作期间深度测定有关的不确定度，决定使用遥测系统在其操作压力和温度限制下运行，以提供除井下压力和温度数据之外的实时套环定位器（CCL）读数。本文涵盖了在挪威大陆架中第一次成功的HP / HT CT铣削工作的详细规划阶段，包括使用遥测系统的经验。它说明了相关的井和储层数据，操作步骤，井控制堆叠配置，操作风险分析和在工作执行期间学到的经验教训，以便用4“圆顶磨机成功铣削隔离球阀。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号