AMSTERDAM, the Netherlands --Schlumberger has introduced its Invizion Evaluation well integrity service, designed to help operators evaluate zonal isolation through integrated drilling, cementing and well logging data.
“One key component in achieving zonal isolation is cementing, which can impact productivity, help prevent sustained casing pressure and annular flow, and mitigate loss of well control issues,” said Amerino Gatti, president, Well Services.
“The Invizion Evaluation service combines all available data from open hole, cementing placement, and acoustic logs for cement evaluation in an integrated workflow. This service supports decision making during the well construction and completion phases to help ensure a robust cement barrier.”
Invizion employs real-time and post-job data to identify zonal isolation issues that could impact well integrity. Petrotechnical specialists can use the service to evaluate drilling surface parameters, formation rock properties, cement barrier placement, and cased hole cement evaluation logs.
To date, the service has been field tested offshore in the Gulf of Mexico and Alaska, where the integrated workflow was used to assist job planning, while the Isolation Scanner cement evaluation service was applied to save more than 15 hours in waiting-on-cement and operational costs.
These services allowed the well to be logged 27 hours after the cement job instead of the typical 42-72 hrs, Schlumberger added, helping determine the quality of the cement bond and that the cement had set.