Innovative at-bit imaging system produces high-resolution images of the borehole, enabling higher ROP

At an onshore well in East Texas, the Retina™ at-bit imaging system provided unprecedented high-resolution geological analysis for the 12.25-in section over the entire 4,892 ft drilled. It collected valuable data to create detailed images of the borehole throughout the entire interval. By providing high-resolution borehole images and comprehensive formation data, the system enabled precise identification of geological features such as dips, fractures, facies, and textures while also improving drilling performance. This advanced technology empowered the operator to improve well planning, update geological models, and make better-informed decisions for field development.

In East Texas, a major operator encountered significant difficulties in accurately identifying geological formations during drilling. Conventional imaging technologies were restricted by drilling fluid types, large hole sizes, and delays between rock removal and imaging, which often led to data loss caused by borehole enlargements or washouts. These limitations hindered the operator’s ability to gather reliable formation data necessary for effective well planning, placement, and field development. The operator required a solution that would overcome these challenges, deliver real-time formation insights, and maintain the accuracy and reliability of geological data to support better decision making.

SLB deployed the Retina system, an innovative hardware solution that translates force measurements captured at the drillbit face into high-resolution borehole images. Unlike traditional imaging tools, this system is compatible with any drilling fluid type and is unaffected by mud composition, making it highly adaptable to different drilling environments. During the drilling of a 12.25-in section spanning 4,892 ft, it delivered outstanding results. The Retina system captured detailed geological data, including dips, fractures, facies, and textures, and correlated these features with formation tops. This high-resolution imaging gave the operator a comprehensive understanding of the geological formation, allowing for ongoing updates to geological models and better planning for future analyses.

In addition to its imaging capabilities, the Retina system integrated advanced technologies such as the Axe™ ridged diamond element, ThermoBlade™ thermal-resistant diamond element bit, and DualHelix™ multiformation performance bit. This combination achieved the highest ROP on the pad.