Scientific Drilling International推出的HALO旋转导向系统兼具高效与快速，能够最大限度提高钻井作业水平。
来自丨Worldoil
编译丨TOM
Scientific Drilling International在今年的SPE年度技术会议与展览会（ATCE）上，宣布该公司的HALO高性能旋转导向系统（RSS）已经实现商业化。经济高效的HALO系统结合了更强的水平与方向控制、单个集成式套筒等，帮助开发商优化井眼轨迹，消除NPT与作业风险，缩短整体钻井时间。
Scientific Drilling International公司首席执行官Phil Longorio表示：“旋转导向系统在非常规页岩中的重要性变得愈发突出，特别是作业者目前追求钻出更长的水平段，以扩大储层的产量。我们很高兴的宣布，我们的新型HALO旋转导向系统已经商业化，这有助于满足作业者对可靠性与经济性的要求，同时还可更高效的钻出平滑的定向井筒，从而加快建井作业与完井作业。”
Scientific Drilling的HALO高性能旋转导向系统解决了北美陆地作业者的可靠性与经济性挑战，其成本低，同时作业高效，钻得的井筒更平滑。HALO系统设计坚固耐用，可在一趟钻中钻出垂直段、造斜段以及水平井段，且始终有助于避免昂贵的起下钻，并提高机械钻速（ROP），即使在最恶劣的条件下也是如此。HALO系统的造斜率高达15°/ 100英尺，其高级3D方向控制功能可提供无与伦比的水平段轨迹，使井眼更多的接触目的层。
推进式HALO系统可以与传统的泥浆马达配合使用，最高作业转速可达350 RPM，从而最大限度地提高性能，并减少作业时间与起下钻次数。数据从系统的高速泥浆脉冲遥测传输到地面。该系统可以在不中断钻进作业的情况下，进行精确的动态定向控制。
HALO系统由一个集成式转向装置与MWD测量组件组成，具有方位角伽马射线地质导向与随钻测压的功能，在交付到钻井现场之前，可实现完全组装与鉴定合格。这将最大限度地减少了BHA组装时间，并降低了相关的HSE风险。
得益于其紧凑的结构及优异的性能，HALO非常适用于非常规挑战的高性能旋转导向系统，并提供最大价值：
- 兼容高性能泥浆马达，最高转速可达350转/分钟；
- 造斜率高达15°/100ft，使油藏接触面积最大化；
- 精确的动态定向控制，且不会中断钻进作业；
- 实时方位伽玛射线测量与近钻头井斜角测量能够提供最佳井眼布置，并防止意外的地层界面干扰；
- 通过连续的等效循环密度（ECD）监测，及早发现与预防钻井问题；
- 下行命令可以随钻传输，将MWD数据脉冲传输到地面，无需额外的钻机设备；
- 精确的井眼轨迹与出色的井眼质量。
其作业优势包括：
- 提高钻井性能，更高的转速限制；
- 油藏接触面积的最大化，高造斜率，最高可达15°/100ft；
- 提高钻进效率，卓越的3D高级方向控制系统；
- 降低处理风险与隐形时间，集成式单套筒设计。
相对于同类工具，其特点也非常明显：
- 从垂直段开始进行磁定位；
- 兼容高性能泥浆马达；
- 实时方位伽玛射线测量与近钻头导向组件；
- 利用实时环空压力传感器来进行连续的等效循环密度(ECD)监测；
- 在钻进期间传输下行命令，同时将MWD数据脉冲传输到地面；
- 实时振动读数：横向、轴向与粘滑。
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Scientific Drilling International today announces the commercialization of its HALO high-performance rotary steerable system (RSS) at the SPE Annual Technical Conference and Exhibition (ATCE). The cost-efficient HALO system combines enhanced lateral and proportional steering control with a single integrated collar and high-performance capabilities to help operators optimize wellbore placement, reduce handling time and risk, and improve overall drilling time.
“The importance of rotary steerable systems in unconventional shales has become increasingly important, especially as operators are drilling longer laterals to extend their payzone yield,” said Phil Longorio, Chief Executive Officer, Scientific Drilling International. “We’re excited to announce the commercialization of our new HALO rotary steerable system, which helps meet operators’ reliability and economic challenges, while yielding more efficient, smoother directional wellbores, resulting in faster well construction and completion operations.”
Scientific Drilling’s HALO high-performance rotary steerable system solves U.S. land operators’ reliability and economic challenges while yielding more efficient, smoother wellbores. Designed to drill vertical, curve and lateral sections in a single run, the rugged HALO system consistently helps avoid costly trips and improves rates of penetration (ROP) even in the harshest conditions. The HALO system maximizes wellbore exposure in the target zone by drilling curve sections with build rates of up to 15°/100 ft, and its 3D advanced directional control functionality delivers unparalleled lateral placement.
The push-the-bit HALO system can be paired with conventional mud motors and operates at a maximum bit speed up to 350 RPM, maximizing performance and reducing rig time and trips. Data is transmitted to surface from the system’s high-speed mud pulse telemetry. The system allows precise on-the-fly directional control without interrupting the drilling process.
Consisting of an integrated steering unit and MWD survey package, with azimuthal gamma ray geosteering and pressure-while-drilling capabilities, the HALO system is fully assembled and qualified prior to delivery to the rig site. This minimizes BHA assembly time and mitigates associated HSE risks.
High-Performance Rotary Steerable System for Unconventional Challenges
DELIVERING THE ULTIMATE VALUE
- Compatible with high-performance mud motors with maximum bit speed up to 350 rpm
- Capable of drilling curve section with build rate up to 15°/100 ft, maximizing wellbore exposure in target zone
- Allows precise on-the-fly directional control without interrupting the drilling process
- Real-time azimuthal gamma ray measurements and near-bit inclination deliver optimal wellbore placement and prevent unintended bed boundary exit
- Early detection and prevention of drilling problems via continuous Equivalent Circulating Density (ECD) monitoring
- Downlink commands can be transmitted while drilling, pulsing MWD data to surface, and without requiring additional rig equipment
- Precise wellbore placement and exceptional hole quality
Benefits
- Improves drilling performance: higher RPM limits
- Maximizes reservoir exposure: high-build capabilities, up to 15°/100 ft
- Enhances drilling efficiency: superior 3D advanced directional control system
- Reduces handling risk and invisible time: integrated one-collar design
Features
- Magnetic referenced kickoff from vertical
- Compatible with high-performance mud motors
- Real-time azimuthal gamma ray measurements and near-bit navigation package
- Continuous equivalent circulating density (ECD) via a real-time annular pressure sensor
- Downlink commands are transmitted during drilling, while pulsing MWD data to surface
- Real-time vibration readings: lateral, axial and stick-slip
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