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首页> 外文会议>International Petroleum Technology Conference >Real-Time Downhole Coiled Tubing Communication System Allows Optimized Well Intervention and Reservoir Evaluation - A Two Well Case Study from New Zealand
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Real-Time Downhole Coiled Tubing Communication System Allows Optimized Well Intervention and Reservoir Evaluation - A Two Well Case Study from New Zealand

机译：实时井下盘绕管道通信系统允许优化井干预和水库评价 - 新西兰的两项案例研究

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New Zealand is known for deep, highly deviated wellbores often causing difficult wellbore interventions. This paper will highlight several coiled tubing (CT) interventions successfully completed in New Zealand with the help of a CT conveyed real-time downhole communication system. Well A in the study is a highly deviated gas producer which was to be converted into a gas re-injection well. A CT acid wash was required to remove deposited scale from the wellbore followed by a production log. The particular challenge with entering this well, in addition to the total depth of 7,395m, was that previous attempts hung up in a damaged seal assembly at 6400m and 66 degrees hole angle. It was decided that real-time data transmission / logging could help to increase the chances of successful CT intervention. Well B was a newly completed monobore well that was programmed for hydraulic fracturing completion in three zones. Underbalanced perforation and pre-frac flow testing was accomplished using a CT system on each of the three zones to evaluate the well productivity. To provide an accurate depth correlation for the perforating operation and to optimize the reservoir evaluation process, a real-time CT conveyed down-hole communication system was selected and successfully run. In both case histories, real-time data from downhole tools was obtained by utilizing a small diameter conductor wire which is pre-installed inside the coiled tubing. With mechanical and electrical quick connectors attached on the bottomhole assembly (BHA), a data acquisition system on surface can obtain real-time information from the casing collar locator (CCL), the down-hole pressure and temperature gauges, proving very valuable information for both CT and reservoir engineers to optimize their operations. Additionally, the CT string, with pre-installed conductor wire, allowed logging tools to be attached, retrieving live data from down-hole and allowing an optimized logging program to be performed on the fly. This paper reviews the coiled tubing real-time down-hole communication system and discusses the benefits of running it over conventional coiled tubing by illustrating case studies of successfully running the system from above two wells.
机译：新西兰被称为深，大斜度井眼往往会造成难以井筒干预。本文将重点介绍几个连续油管（CT）的干预措施在新西兰成功地完成了CT的帮助传达实时井下通信系统。井A在研究是高度偏离的天然气生产它是要转换成气体重新注入井。一种CT酸洗被要求从井筒接着是生产测井除去沉积规模。与进入该井，除了7395米的总深度的特别的挑战，是以前的尝试在损坏的密封挂了装配在6400米和66度角孔。会议决定，实时数据传输/测井能有助于提高成功的CT介入的机会。 B井是在三个区域编程水力压裂完成新建成单孔井。欠平衡穿孔和预压裂流测试使用在各三个区的CT系统来评估井产完成。以提供用于穿孔操作的准确深度的相关性，并优化储层的评估过程中，实时CT输送井下通信系统被选择，成功运行。在这两种情况下的历史，通过使用其中在连续油管内部预先安装-小直径导线获得从井下工具的实时数据。与安装在底部钻具组合（BHA）的机械和电气快速接头，上表面上的数据采集系统可以从套管接箍定位器（CCL）的实时信息，井下压力和温度计，证明对于非常有价值的信息既CT和油藏工程师优化他们的业务。此外，该CT字符串，预装导线，允许测井工具附接，从井下检索实时数据并允许被动态执行的优化的记录程序。本文回顾了连续油管实时井下通信系统，并说明成功从上面两个井运行系统案例研究讨论了传统的连续油管运行它的好处。

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