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Technology And Process Roadmap To Improve Performance In Horizontal Wells In Vaca Muerta Unconventional Reservoir, A Success Story In Argentina.Normal access

Authors: R. Hernandez, E. Rodriguez, J.D. Telles, J. Alarcon, H. Bedino, R. Krasuk, L. Diaz and L. Tisera
Event name: Second EAGE/AMGP/AMGE Latin-American Seminar in Unconventional Resources
Session: Session III.I
Publication date: 15 November 2019
DOI: 10.3997/2214-4609.201903102
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 401.41Kb )
Price: € 20

Vaca Muerta is one of the biggest unconventional finds of the last several years, located in the Neuquen Basin in Argentina, it is the second biggest shale gas reservoir and the fourth for shale oil in the world. To meet the objective of drilling horizontal wells with high performance, a roadmap focused in the fast introduction of technology and processes was established to achieve a fast learning curve. To improve drilling performance, the selection and implementation of directional tools and bit technologies through all sections was vital. To reduce flat times, a deep analysis of invisible lost time was used to find potential time saving areas. The implementation of batch drilling and offline cementing and logging operations led to huge time saving. The effective implementation of the technologies and processes roadmap along with the solutions found for the issues encountered, was the key of the success of the project. The results of the first pad drilled was 38.6 days in average time per well. For the second pad we reached an average well time of 23.7 days.

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