• Failure Reduction and Time Optimization on Casing Rotation Operations in Directional Wells of Mature Fields in Ecuadorian Jungle (in Spanish)

    This presentation in Spanish (slides in English) is from the 2020 SPE Latin American and Caribbean Petroleum Engineering Conference. Our archived 2020-21 event content is now available free to SPE members!

    • Paper Number: SPE-199059-MS
    • Published: 20 July 2020
    • Authors: Sergio Hernández; Cristian Giol; Randall Rodríguez; Jaysmlen Rodmilt Jaspe Rodriguez

    In the Ecuadorian jungle, operators use the same location to drill several deviated wells. The geometries of these “S” or “J” type wells present high dogleg severity (DLS) in different sections, requiring rotation and reaming of the casing string to reach the target depth. During the rotation in deviated sections, the combination of the resultant bending of the string and its rotation generate alternating stresses in the pipe body and the connections. Likewise, contact forces on the string during the process promote the increase of drag and torque that the casing string must withstand during its installation. These service characteristics can lead to create the conditions for potential fatigue and over-torque damages in the components of the casing strings installed in these wells.

    This paper presentation shares the strategy applied to achieve the reduction failure occurrence and promote the time optimization during the casing running in these directional wells. Some results obtained from the pilot phase of the overall project are also presented.

     

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  • Failure Reduction and Time Optimization on Casing Rotation Operations in Directional Wells of Mature Fields in Ecuadorian Jungle (in Spanish)