Churchill******的DAV MX循环短节屡屡在钻井作业中创造纪录。 编译 | 惊蛰 Churchill******是一家专注于钻******，该公司透露，其屡获殊荣的DAV MX循环短节本月已解锁一项成就，目前已经有超过***次成功应用案例。 DAV MX循环短节是一种应急工具，每年应用于数百口井，以其可靠性、弹性与多功能性而著称，可帮助作业者在低风险下更快、更高效地钻井。例如在****年*月，包括波斯湾的两次独立作业，发生意外钻井事故后，开发商了采用了DAV MX循环短节，成功的使钻井作业重回正轨。 在首个作业中，管柱堵塞导致压力骤增，从而停止作业。通过激活DAV MX紧急开放球阀(EOB)，作业人员在一小时内重新建立了循环。随后利用DAV MX进行井眼清洁，然后在起出钻具之前，泵入起下钻泥浆。鉴于其强大的功能，作业者非常重视DAV MX循环短节，因为它提供了应急循环通道，非常适合封堵或管柱堵塞的情形。在这种情况下，作业者节省了大量时间与成本，并继续在其他作业中部署DAV MX。 在中东的另一次作业中，钻井作业存在失稳风险，作业者停止钻井作业以降低漏失量。作业者四次激活DAV MX循环短节，以便在*****英尺的井深处泵送堵漏材料（LCM）。只需不到十分钟时间，Churchill公司的智能投球就可以激活DAV MX，使钻井工程师能够快速解决井漏并重新开始钻井作业，从而限制非生产时间。DAV MX特有的锁定打开功能已启用，其可靠性与弹性确保了作业者的底部钻具组合未被损坏。 Churchill中东业务总经理Nicholas Kjaer表示:“中东作业者需要可靠、高弹性与灵活的工具，这些工具还需简单易用，缩短作业时间。而且，他们还需要一个合作伙伴，拥有经验丰富的优质团队，以提供全天候的专家与作业支持。这就是为何我们的中东业务能够持续增长，并且DAV MX循环短节的需求显著增加。” “波斯湾的两次作业很好地证明了我们旗舰产品的灵活性与可靠性。作业者可充满信心地知道，使用DAV MX，他们不仅能够重新建立循环或解决漏失，还可以优化一系列其他作业，例如井眼清洁，自充填或干起钻。”Churchill公司的智能化DAV MX是一款多功能、多循环通道的循环短节，可显著提高性能并易于使用。该工具快捷、通用且可靠，适用于大多数环境与各种作业。 DAV MX是一款多功能、多循环通道的循环接头，需要利用Churchill公司的MX智能投球专利技术来激活该工具。系统将使用效果与可靠性提高了一个档次，却没有增加用户的操作复杂性。该工具还具备其他一些专利特性，如保持开启和闩锁&密封。显而易见，它是循环短节用户的明智之选。 通过将不同的投球泵入简单而又坚固的短节与球座中，可实现不同的功能，并带来一流的可靠性。该工具非常人性化，无需在使用前进行配置，只需将所需的投球丢入井中即可。在深水井、高温高压井、大井斜井的作业中，DAV MX的速度惊人，效果显著，在全球范围内为客户们节省了数千小时的作业时间。 DAV MX是开发商的明智之选，智能投球系列短节可为客户提供分流、全旁通与井控等诸多功能，适用于多种作业。与传统的投球相比，DAV MX智能投球不会从开口处掉落，因此可以以更高的速度泵入。此外，该工具简单易用，无需专业技术人员，DAV MX?的循环很大程度上不受井斜、温度、压力、泥浆类型与比重变化的影响，这意味着它可以应用于几乎所有作业类型与作业环境。 Reykjanes半岛上的深井钻探项目（IDDP）正在钻进世界上最深、最热的地热井，该项目选用了DAV MX?循环短节。IDDP井将成为冰岛地热能生产的重要组成部分，利用岩浆加热的超临界蒸汽来提供清洁的可再生能源。 钻进作业耗时***天，将一口现有的地热井加深达到****米。IDDP团队在****米的深度遭遇了***°C的高温，同时打破纪录，钻出有史以来最深、温度最高的地热井，并且在比预期更浅的深度遇到了超临界条件。IDDP项目的主要作业者和合作伙伴强烈推荐了DAV MX循环短节，该工具为IDDP团队提供了应急措施，可妥善处理封堵造成的井漏。若发生井漏，底部钻具组合（BHA）的组件将很快被“煮熟”。 该公司首席执行官兼商业总监Mike Churchill表示:“我们很高兴在这口井上创造了两项世界第一。IDDP井是有记录以来最深、最热的地热井，DAV MX被选用于该井的管柱中。该工具已在很多高温高压井中证明了自己的实力，能够承受各种恶劣环境。在IDDP井中，该工具同样也发挥出色。地热井是Churchill公司的一个新领域，我们正在寻求扩大市场，因为我们在地热井领域的竞争力根本无法与该循环短节强大的适应能力相媲美。”Churchill Drilling Tools, a leading oilfield service company specialising in drilling innovation, has revealed that its award-winning DAV MX? CircSub was activated for a landmark ***th time this month. Run in hundreds of wells every year and recognised for its reliability, resilience and versatility the dart activated DAV MX? CircSub is a contingency tool that has helped operators drill faster and more efficiently at low risk. In February ****, for example, the DAV MX? was activated by operators across the globe, including in two separate Persian Gulf campaigns to get their drilling operations back on track following unplanned events.? In the first project, a plugged string led to a pressure spike and a halt to operations. By activating the DAV MX?’s emergency opening ball (EOB), the operator regained circulation in just an hour. The operator subsequently used the DAV MX? to hole clean, then displaced the tripping mud prior to pulling out of the hole.? Operators value the DAV MX? given the contingency circulation path it provides, ideal for pack off or plugged string scenarios. On this occasion, the operator saved significant time and cost and has gone on to deploy the DAV MX? on other campaigns.? The DAV MX? CircSub was deployed on a second Middle Eastern campaign when drilling was halted to combat total losses after the stability of the well was threatened. The operator activated the CircSub four times to pump lost circulation material (LCM) pills at depths of up to **,***ft. It took less than ** minutes for Churchill’s smart darts to activate the DAV MX? allowing the drilling engineer to tackle losses quickly and recommence drilling, limiting non-productive time. The DAV MX?’s unique lock open feature was enabled, and its reliability and resilience ensured that the operator’s BHA was not contaminated. Nicholas Kjaer, General Manager for Churchill’s Middle East operations, said: “Middle East operators demand tools that are reliable, resilient and flexible which are simple to use and cut operating time. They want a partner that can provide **/* specialist and operational support, delivered by an experienced quality team. That’s why our Middle East operations continue to grow and demand for the DAV MX? CircSub increases significantly. “The two campaigns in the Persian Gulf are an excellent illustration of the flexibility and reliability of our flagship product. Operators take confidence knowing that with the DAV MX? in their strings they can not only regain circulation or tackle losses but also optimise a range of other applications such as hole cleaning, self-filling or dry tripping.” Churchill’s smart dart activated DAV MX? is a multi-functioning, multi-cycling circulation sub that delivers significantly improved performance and is simple to use. Fast, versatile and reliable, it can be run in most environments and in a wide range of applications. The DAV MX? is a multi-function, multi-cycling circulating sub which is activated with our patented MX? Smart Dart technology. The system raises the bar on performance and reliability without adding complexity for the user. With several patented features, such as hold open and latch & seal, the tool is clearly the smart choice for CircSub users. Class leading reliability is delivered by a range of robust dart options pumped into a simple rugged sub and catcher. The tool is extremely user-friendly with no need for configuration prior to use simply drop the required dart to ‘plug and play’. In Deepwater, HPHT and High Angle operations, the speed and performance of the DAV MX? has delivered thousands of hours of savings across the globe. The Smart Choice:Versatile – our range of Smart Darts provides users with split flow, full-bypass and well control options for a countless number of applications. Reliable – unlike with conventional balls, DAV MX? darts will not blow-thru on opening therefore can be pumped down at much higher speeds. Simple – the tool is simple and easy to operate, requiring no service hand. Performance – the DAV MX? cycling is largely immune to variations in angle, temperature, pressure, mud type and weight, meaning it can be run in virtually any environment and for endless applications.Extreme heat no sweat for Churchill Drilling Tools. Our flagship DAV MX? CircSub was selected for the world’s deepest and hottest geothermal borehole in the Iceland Deep Drilling Project (IDDP) on the Reykjanes Peninsula. The IDDP well is earmarked to become an integral part of Iceland’s geothermal energy production – providing clean, renewable energy by using supercritical steam heated by the earth’s magma. Drilling took *** days and involved the deepening of an existing geothermal borehole to a depth of ****m. The IDDP team encountered temperatures of ***°C at a depth of ****m – simultaneously creating the deepest and hottest ever geothermal borehole and encountering supercritical conditions at a shallower depth than anticipated.? The DAV MX? CircSub was selected on the recommendation of a major operator and partner in the IDDP project due to its robust temperature resistance and experience in HPHT conventional wells. The tool offered a contingency for the IDDP team against pack-off related circulation loss in which the bottom hole assembly (BHA) components would be literally cooked if circulation was lost.? Mike Churchill, CEO and commercial director said: “We are delighted to secure two world firsts’ on this well. The IDDP well is both the deepest and hottest geothermal well on record and it is a reflection on the DAV MX? that it was selected to be run in this string. The tool has a significant case history in HPHT wells and can withstand a good deal of punishment – both of which suited the client in this unconventional case.? “Geothermal wells are a new area for Churchill and it is a market we are looking to expand as our competition in the segment simply cannot match the resilience of the CircSub.”