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首页> 外文会议>SPE Russian Petroleum Technology Conference and Exhibition >Coiled Tubing Complex Implementation at Stimulation and Testing Project of Deviated Exploration Gas Well at Chayandinskoe Oilfield, Yakutia, Russia
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Coiled Tubing Complex Implementation at Stimulation and Testing Project of Deviated Exploration Gas Well at Chayandinskoe Oilfield, Yakutia, Russia

机译：在Chayandinskoe油田，俄罗斯展开勘探煤气井刺激和试验项目的刺激和试验项目

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Recently drilled exploration well at Chayandinskoye Gas Condensate Field in East Siberia, where at the moment exploration drilling is at the final stage, was selected as a candidate to evaluate effectiveness of hydraulic fracturing stimulation to boost the production. During the production logging and the well test on the pilot vertical section, three prolific zones were identified for further development. As a result of several discussions with the Client and based on the preliminary data analysis, the decision was made to proceed with hydraulic fracturing treatment. Due to the remoteness of the field, unique and complicated geology and reservoir properties, it was clear that the single contactor is required who has a relevant experience and technology being capable to address the challenges and provide an integrated approach. This approach included designing fit-for-purpose well completion, multistage selective hydraulic fracturing and coiled tubing applications inclusive of capability to perform real-time downhole measurements to monitor and evaluate complex multiphase flow profile. Company's completion segment had introduced and run 168-114mm combined premium-port liner down to 2034m MDDF equipped with 3 ports able to be shifted in open/close position, and hydraulic open-hole swelling packers to isolate annular. This type of completion allows selective or combined production from all the zones. Moreover, it enables selective stimulation of each zone, as well as selective or combined production well testing. In case of water breakthrough, knowing which zone is contributing to the water production, the premium-port can be shift closed to prolong the production without the immediate need to perform costly water shutoff treatment. Historically hydraulic fracturing has been a very effective way of increasing production in low permeability reservoirs. Based on the job design, three treatments were performed with 39t, 95t and 20t accordingly. Coiled Tubing services performed debris and residual proppant wellbore cleanout, multiple shifting of premium-ports, nitrogen kick off, and real-time downhole measurements of bottomhole pressure, temperature and production logging. The remoteness of the gas condensate field and the limited timeframe created additional challenges in terms of logistics, equipment and chemicals mobilization. It was clear that the proper preparation and planning were the key to succeed. Needless to mention that the company state-of-the-art technologies, competent personnel and close collaboration between the segments and the Client were the essential part of the equation.
机译：最近在东西伯利亚的Chayandinskoye气体凝析气田钻井勘探勘探，目前探索钻探在最后阶段，被选为评估水力压裂刺激效果的候选人，以提高生产。在生产测井期间和试验垂直部分的井测试中，确定了三种多产区域以进一步发展。由于与客户进行了多次讨论并基于初步数据分析，决定进行液压压裂处理。由于现场的远程性，独特和复杂的地质和储层属性，很明显，需要具有相关经验和技术能够解决挑战并提供综合方法的相关经验和技术。这种方法包括设计适合于目的井完成，多级选择性液压压裂和卷绕管道应用，包括执行实时井下测量以监测和评估复杂的多相流动轮廓。公司的完工部门已介绍并运行168-114毫米的优质港口衬垫至2034米MDDF，配备3个端口，能够在开放式/关闭位置移动，以及液压开孔膨胀封装器，以隔离环形。此类完成允许从所有区域选择性或组合生产。此外，它能够选择性地刺激每个区域，以及选择性或组合的生产井测试。在水突破性的情况下，了解哪个区域对水生产有贡献，可以在没有立即需要进行昂贵的水截止治疗的情况下延长生产以延长生产。历史上液压压裂是一种非常有效的途径，即在低渗透油藏中增加产量。基于工作设计，相应地进行39T，95T和20T进行三种处理。盘绕的管道服务进行了碎片和残留的支撑剂井筒清洁，多次移位的高档端口，氮气启动，以及实时井下测量的底孔压力，温度和生产测井。气体冷凝水域的远程性和有限的时间表在物流，设备和化学品动员方面创造了额外的挑战。很明显，正确的准备和规划是成功的关键。毋庸置疑，公司最先进的技术，能干人员和细分市场之间的密切合作是等式的重要组成部分。

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