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首页> 外文会议>International Association of Drilling Contractors and Society of Petroleum Engineers Drilling Conference and Exhibition >Utilizing Wired Drill Pipe Technology During Managed Pressure Drilling Operations to Maintain Direction Control, Constant Bottom-hole Pressures and Well-bore Integrity in a Deep, Ultra-depleted Reservoir
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Utilizing Wired Drill Pipe Technology During Managed Pressure Drilling Operations to Maintain Direction Control, Constant Bottom-hole Pressures and Well-bore Integrity in a Deep, Ultra-depleted Reservoir

机译：在管理压力钻孔操作期间利用有线钻杆技术，保持方向控制，恒定的底孔压力和深层超耗尽水库的良好钻孔完整性

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Wells drilled with nitrified drilling fluids require a solution for the transmission of measurement-while-drilling (MWD) surveys, bi-directional communication with rotary steerable systems, and transmission of MWD and and logging-while-drilling (LWD) measurements of downhole temperature and annular pressure for surface choke adjustments. Wired drillpipe (WDP) provides the solution for these requirements. Results from a recent well drilled into an underpressured reservoir in southern Mexico provided an opportunity to demonstrate the applicability of WDP to deliver the required measurements and maintain the proper directional control while keeping the well fluids under control. During WDP operations, both the traditional mud pulse transmission and the new WDP transmission methods are available, providing 100% reliability for receiving the downhole MWD/LWD data. During the drilling of this well, both single and multi-phase Managed Pressure Drilling (MPD) techniques were used. The plan called for the overburden and reservoir sections to be drilled in one bit run but with different mud types and constant bottom- hole pressure (BHP). Before drilling the reservoir section, the single-phase mud used to drill the overburden had to be changed- over to multi-phase mud while monitoring the wellbore for signs of instability. Maintaining constant BHP in this type of MPD operation is complicated by the fact that current hydraulic models do not have the proven capability to support constant BHP in a nitrified OBM. With mud pulse telemetry, downhole data transmission stops when the rig pumps are shut-down. But with WDP, downhole data is actively transmitted during the time between pump shut-down and pipe disconnection. This allows MPD personnel to monitor actual annular pressure during pump transitions and more accurately determine the optimum choke position for constant BHP. During the connection, the downhole annular pressure is stored in memory. Once the connection has been made the data is transmited up-hole for evaluation and analysis, which provides immediate feedback on the stability of the BHP during the connection. Pressure sensors (along string measurements or ASM) within the multiple WDP repeater subs allow us to compute the fluid density at multiple intervals along the annulus for the first time in the history of drilling. We document a rather surprising case of temperature effects overriding pressure effects during the use of a single-phase compressible OBM used in the first stage of this drilling operation. This has implications for using WDP measurements to calibrate and verify hydraulic models for both single and multi-phase drilling fluids. Proper hydraulic modeling capabilities are critical for MPD operations. This well provides the opportunity to demonstrate other applications for these newly invented 搃nterval fluid densities.?For example, they are used to verify the top of the fluid level with and without the presence of nitrogen injection when accurate flow- in versus flow-out measurements are not available. This is used to verify the presence or absence of lost circulation and formation fluid influx during MPD operations, which is very difficult otherwise. WDP allows for the transmission of high-frequency vibration and collar rotation data from the bottomhole assembly (BHA). This is used to determine the dynamic rotational tendencies of this drillstring under varying conditions, which can then be used to calibrate a dynamic mathematical drillstring model. This is then used to predict optimum drilling parameters to minimize stick/slip, bit bounce, and bit whirl to optimize rate of penetration (ROP).
机译：用硝化的钻井液钻井井需要用于传输测量 - 钻孔（MWD）调查，与旋转可操纵系统的双向连通，以及MWD的传输和钻孔（LWD）井下温度的测量表面扼流圈调整的环形压力。有线钻孔管（WDP）为这些要求提供了解决方案。据墨西哥南部的压力水库近期钻孔的结果提供了机会，以证明WDP的适用性提供所需的测量并保持适当的方向控制，同时保持井流体在控制下进行控制。在WDP操作期间，传统的泥浆脉冲传输和新的WDP传输方法都可用，为接收井下MWD / LWD数据提供100％的可靠性。在钻井期间，使用单相和多相管理的压力钻孔（MPD）技术。该计划要求在一点运行中钻出的覆盖层和储层部分，但用不同的泥浆类型和恒定的底孔压力（BHP）。在钻井储层部分之前，用于钻取过载的单相泥浆必须在监控井筒时被改变到多相泥浆中，以便稳定的迹象。在这种类型的MPD操作中保持恒定的BHP由于当前的液压模型没有经过验证的能力来支持硝化OBM中的恒定BHP。使用泥浆脉冲遥测，钻机泵关闭时的井下数据传输停止。但是对于WDP，在泵关闭和管道断开之间的时间内积极传输井下数据。这允许MPD人员在泵过渡期间监测实际环形压力，更准确地确定恒定的BHP的最佳阻尼位置。在连接期间，井下环形压力存储在存储器中。一旦连接了连接，数据被传输了孔，以进行评估和分析，这提供了在连接期间对BHP稳定性的即时反馈。多个WDP中继器内的压力传感器（沿串测量或ASM）允许我们在钻孔历史中首次将流体密度以沿环形的多个间隔计算流体密度。我们记录了在使用该钻井操作的第一阶段使用的单相可压缩OBM期间的温度效应的温度效应相当令人惊讶的情况。这具有对使用WDP测量来校准和验证单相和多相钻井液的液压模型的影响。适当的液压建模能力对于MPD操作至关重要。这很好地提供了展示这些新发明的搃和液体密度的其他应用程序的机会。例如，它们用于验证流体水平的顶部，并且在准确流动时不存在氮气喷射的情况测量不可用。这用于验证MPD操作期间存在或不存在丢失的循环和形成流体流入，这否则非常困难。 WDP允许从底座组件（BHA）的高频振动和套环旋转数据传输。这用于确定在不同条件下该钻头串的动态旋转趋势，然后可以用于校准动态数学钻头模型。然后使用这是为了预测最佳钻孔参数，以最小化棒/滑移，位反弹和比特旋转以优化穿透速率（ROP）。

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