连续油管

海底油井无立管连续油管服务提高效率和安全性

本文介绍了在海底作业井中首次进行的无立管连续油管服务操作以及相关的效率、成本节约和安全性改进。

图1——LCT动员。
图1——LCT动员。
来源：SPE 224032。

无立管轻型井修井 (RLWI) 相较于基于立管的修井方式具有诸多优势。传统上，无立管模式下只能进行电缆作业和钢丝作业。因此，如果需要连续油管 (CT)，通常需要切换到基于立管的修井方式。无立管连续油管 (RLCT) 的引入解决了这个问题，增强了各种作业的能力。

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Coiled tubing

Riserless Coiled Tubing Services in Live Subsea Well Enhance Efficiency, Safety

This paper describes the first riserless coiled tubing services operation performed in a live subsea well and the associated improvements in efficiency, cost savings, and safety.

Fig. 1—RLCT mobilization.
Fig. 1—RLCT mobilization.
Source: SPE 224032.

Riserless light well intervention (RLWI) offers several advantages over riser-based intervention. Traditionally, only wireline and slickline services could be performed in riserless mode. Thus, if coiled tubing (CT) were required, typically it was necessary to switch to a riser-based intervention. The introduction of riserless coiled tubing (RLCT) addresses this issue, enhancing capabilities for a wide range of operations.

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