Production Liner Cementing Practices in Challenging Horizontal Wellbores
- Islam Al-Baiyat (Saudi Aramco) | Mohamed Khalil (Saudi Aramco) | Thomas Heinold (Saudi Aramco) | Dean Porter (Saudi Aramco)
- Document ID
- International Petroleum Technology Conference
- International Petroleum Technology Conference, 26-28 March, Beijing, China
- Publication Date
- Document Type
- Conference Paper
- 2019. International Petroleum Technology Conference
- 2.2 Installation and Completion Operations, 1.10.1 Drill string components and drilling tools (tubulars, jars, subs, stabilisers, reamers, etc), 2.10 Well Integrity, 2.1.3 Completion Equipment, 2.10.3 Zonal Isolation, 1.10 Drilling Equipment, 2 Well completion
- Liner, Production Liner, Horizontal, Best Practices, Cementing
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- 77 since 2007
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Providing competent hydraulic isolation between multiple reservoir sections in horizontal wellbores represents a difficult industry challenge. This paper will discuss some of the practices and tools used for cementing production liners in critical horizontal wells.
Issues with bore hole conditioning, ovality, effective solids removal, and hole collapse are more problematic in horizontal wells. Historically issues occurred while running and cementing highly deviated liners. This was true before and after the cement placement including the premature setting of cement, an inability to run the liner to bottom, difficulties in setting the hanger assembly, pressure in the tubing-casing annulus, and cement channeling. Proper pre-job preparedness including pilot testing of the fluid systems, mud conditioning practices, centralization, cement placement simulations, and well site execution procedures for cementing these liners will be discussed.
The practices to be presented have been executed for horizontal as well as deep vertical gas well applications. Scorecards were developed to measure and assess the processes used. This work explains how this effort as well as the cementing service delivery practices have led to successful jobs. The recommended practices have a positive business impact by minimizing or mitigating operational complications, saving rig time, and reducing the need for remedial work due to poor primary cementing operations.
The paper highlights how the combination of enhanced cementing practices in conjunction with new cementing tools and technologies made important contributions to delivering effective zonal isolation in a highly challenging wellbore environment.
|File Size||647 KB||Number of Pages||9|
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