Schlumberger implemented the first instrumented platform integrating advanced measurements in real-time while perforating with plug-in gun connections. This paper presents the results obtained at field level using this technology in Ecuador and a comparison of this technology with perforating operations and techniques in terms of efficiency, reliability, and correlation between the predicted and measured dynamic events to perform a full evaluation of the perforating design process, execution and its impact in well performance
Out of more than 120 jobs performed year to date in Ecuador, the authors selected 5 wells covering operations with dynamic underbalance (simultaneous and standalone) and gas fracturing to illustrate the efficiency gains of a faster and more reliable arming system and to analyze the match between simulated and measured dynamic events (pressure and shock). Among the 5 wells, two of them achieved positive production results, and the real time measurements showed additional information in terms of: reservoir pressure, well response, and perforations cleanup during the job execution. The other three wells provided key information related to well control and pressure buildup after perforations, withal they did not provide comparatively consolidated production results.
Number of Pages
Guedes, C. E., Benavides, M., Baumann, C., Garcia-Osuna, F., Aboelnaga, S., Zaouali, Z., … Smart, M. (2019, March 18). Docking Perforating System with Integrated Real Time Downhole Measurements. Society of Petroleum Engineers. doi: 10.2118/194239-MS
Marfil, Rafaela & Estupiñán, Jenny & Scherer, Michael & Permanyer, A.. (2010). Reservoir Sandstones of the Cretaceous Napo Formation U and T Members in the Oriente Basin, Ecuador: Links between Diagenesis and Sequence Stratigraphy. Journal of Petroleum Geoscience. 33. 221-246.
Looking for more?
Some of the OnePetro partner societies have developed subject- specific wikis that may help.