Probe提供数字遥测技术的高速传输功能，可提高数据采集速度！
编译 | 惊蛰
Probe公司是全球石油、天然气、地热行业的套管井测井服务与监测技术供应商，该公司近日宣布，通过采用高速数字（HD）遥测技术平台，可以大幅提升数据采集能力。
随着技术进步，越来越多高速、高灵活配置的数字传感器都可归属为HD平台，它们在帮助开发商有效地采集数据方面发挥着关键、独特的作用。Probe公司不仅拥有一系列的标准与阵列生产测井工具，还专注于下套管井的地层评价解决方案：
- Mac 24多臂测径规，可识别井筒完整性问题，例如完井管柱内部的矿物沉积、腐蚀、磨损、机械变形等。
- RADii分区水泥胶结测井仪，可测量与绘制油气井下套管后的固井质量。
- RAS油藏分析探头，是一种三探头脉冲中子测井工具，利用Sigma与碳氧技术来测量油藏饱和度。
- Spectral伽马射线工具，是一种地层评价工具，可以深入了解下套管井地层的放射性与矿物成分。
Probe公司全球销售副总裁Martin Barratt说：“多年来，油气行业对高灵活配置，且能够更高效采集高质量数据的测井工具需求持续上升。因此我们坚信继续扩大智能、有效的地层评估解决方案，对开发商的收益至关重要，HD平台正是在此背景下应运而生。它可赋予我们工具更强大的能力，获得业内最高质量的测量数据。通过实现更灵活的组合配置，我们确信Probe公司可在每个方面都提供服务。通过使用HD平台兼容的测井工具，如今服务商可在每次修井作业中获取更多的数据。这使得作业者能够以更少的井眼数量，获得关键目标，从而实现降本增效。”
那么，HD平台是什么，以及它如何更有效地采集数据呢？新型HD平台由两部分组成：工具间通信总线以及由遥测控制设备（TCU）管理的单导体遥测。工具间通信总线是单线双向系统，运行速度为500kpbs，足以容纳多种不同的测井工具组合。
控制遥测设备（或内存工具）的采样传感器的速度为每秒50次，因此适用于高数据率的工具，例如高垂直分辨率的多臂测径规。命令与指令也被发送至同一单线总线上的传感器。
TCU能够建立所有井下工具与地面的通信连接。该设备可控制井下工具的数据采集，并将数据包传输至地面系统。它通过快速下行链路接收来自地面系统的命令，并根据需要对地面做出响应。TCU可由存储式测井工具（MLT）替代，使所有HD传感器都安装在钢丝绳与连续油管上。
HD平台采用模块化设计，依靠插入式电子板，且只需简单的机械维护。它非常适合传统作业与远程作业。展望未来，作为其数据采集技术发展战略的一部分，该公司计划将HD遥测技术集成到现有与未来的所有套管井测井工具中。
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Probe, a leading supplier of cased-hole logging and advanced monitoring technology to the global oil and gas and geothermal industries, has announced that it continues to make headway in offering its customers additional resources to dramatically increase their data logging capabilities through the adoption of its high-speed digital (HD) telemetry platform.
Known as the HD Platform, an increasingly wider range of high-speed, highly configurable digital sensors play critical – and unique – roles in helping operators to log data much more efficiently. In addition to its range of Standard and Array Production logging tools, Probe has been focusing on cased-hole formation evaluation solutions:
- The MAC 24 Multi-arm Caliper Tool, which makes it possible to identify integrity problems, such as mineral deposition, corrosion, wear or mechanical deformation, inside a completion.
- The RADii Segmented Bond Tool, which measures and maps the quality of cement behind casing in oil and gas wells.
- The RAS Reservoir Analysis Sonde, a three-detector pulsed-neutron logging tool for measuring reservoir saturation using Sigma and Carbon-Oxygen techniques.
- The Spectral Gamma-ray Tool, an evaluation tool that offers insight into the radioactivity and mineral composition of cased-hole formations.
More data gathered per well intervention
“For years, the demand for logging tools that are highly configurable and capable of gathering high quality data more efficiently has continued to rise unabated, so we believe that continuing to expand our truly intelligent, effective formation evaluation solutions is critical to our customers’ success,” said Martin Barratt, VP Global Sales of Probe. “The HD Platform is the result of a concerted initiative to enhance our field-proven tools with the highest quality measurements in the industry. By enabling fully combinable configurations, we are confident that Probe delivers on every front. By employing HD Platform compatible logging tools, service providers can now acquire more data per run in every well intervention. This enables operators to meet key objectives with a minimal number of well entries, improving efficiency and reducing cost.”
The HD Platform: what it is and how it gathers data more efficiently
The new HD Platform consists of two parts: an inter-tool communications bus and mono-conductor telemetry which is managed by the Telemetry Control Unit (TCU). The inter-tool communications bus is a single wire bi-directional system that operates at 500kpbs, which is ample speed to accommodate many different combinations of logging tools. The controlling telemetry – or alternative memory tool – samples sensors at a rate of 50 times per second, allowing high data rate tools and, for example, multi-arm calipers to provide high vertical resolution. Commands and instructions are also sent to the sensors on the same single wire bus.
The TCU handles all communications to surface. This device controls the data collected by the tools below, and packages it for transmission to the surface system. It receives commands from the surface system via the fast downlink, and responds back to the surface, as necessary. The TCU can be replaced by the Memory Logging Tool (MLT) allowing all HD sensors to be deployed on slickline and coil tubing, among others.
The HD Platform is a modular design offering simple mechanical maintenance and supported by plug0in electronic boards. It is well suited to both conventional and remote environment operations.
Looking ahead, as part of its continuing commitment to developing technologies that gather comprehensive data, Probe plans to integrate HD telemetry technology into all current and future cased-hole logging tools.
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