Complex well architectures—especially multilateral and extended reach wells—create significant challenges for intervention. Operators often struggle to reliably enter multiple laterals, confirm wellbore positioning, and perform effective stimulation without multiple runs or costly trial-and-error approaches.
Traditional methods lack the precision, control, and efficiency required in HT or geometrically complex wells. This results in extended operational time, increased risk, and suboptimal production outcomes.
The ExaCT access service, part of the ExaCT™ electrical downhole CT control system, combines on-command electrical control, real-time telemetry, and integrated downhole tools to address access and navigation challenges in multilateral and extended-reach wells. Operators enter, confirm, and stimulate multiple laterals in a single CT run without relying on pressure cycling or repeated trial-and-error attempts.
The direction and inclination (D&I) module maps wellbore orientation, while the electrical multilateral module (eMLT) provides azimuth measurements that confirm lateral entry in seconds. Controlled jetting supports precise placement and stimulation, and CT tractor conveyance extends reach beyond lockup limits in complex well geometries.
This integrated workflow reduces repeat trips, confirmation time, and operational uncertainty. In early field deployments, the system completed multilateral entry and stimulation 30–40% faster while reducing overall operational costs by 15–20%. The D&I module and eMLT also operated reliably in corrosive, HT environments exceeding approximately 165 degC [329 degF], supporting first-attempt lateral entry.
Enter and stimulate multiple laterals in one run.
Electrical control eliminates pumping, enabling precise navigation.
Go beyond lockup limits with CT tractor conveyance.
Improve placement with optimized jetting.
Reduce complexity in challenging wells.
Cut time and overall intervention cost.
Field deployments completed multilateral entry and stimulation 30–40% faster than conventional hydraulically actuated CT runs.
Electrical control reduced repeat CT trips and lowered overall operational costs by 15–20% across multiple field deployments.
Azimuth measurements from the eMLT reduced lateral entry confirmation from hours to minutes, as shown in the ExaCT D&I module and eMLT video.
The D&I module and eMLT operate reliably in HT, corrosive environments exceeding approximately 165 degC [329 degF], supporting first-attempt lateral entry.
Talk to an SLB well intervention expert about deploying the ExaCT access service to enter, confirm, and stimulate multiple laterals with real-time electrical control in a single CT run.
Electrical multilateral entry uses on-command actuation and azimuth measurements to confirm lateral entry. Unlike hydraulic tractor systems, it does not depend on pressure cycling or fluid pumping. The eMLT confirms entry before stimulation begins, reducing trial and error.
With the eMLT, azimuth measurements confirm in real time that the BHA has entered the selected lateral, reducing confirmation time from hours to minutes.
Multilateral and extended-reach wells, including HT environments exceeding approximately 165 degC [329 degF], are primary candidates. The technology is especially useful where hydraulic actuation is unreliable or where each lateral would otherwise require a separate CT run.
Yes. The ExaCT access service combines D&I mapping, eMLT lateral entry, and controlled jetting to enter, confirm, and stimulate multiple laterals in one run without pulling the CT string between laterals.
The D&I module and eMLT are designed for operation in HT, corrosive environments exceeding approximately 165 degC [329 degF].
