WellWatcher Stim Service Verifies Diversion and Stimulation Delivery in Limited-Entry Well | Schlumberger
Tech Report
Details

Louisiana
Haynesville Shale

Completion type
Frac sleeves

Isolation method
Ball-drop sleeve activation

Stage spacing
400 ft

Perforation cluster per stage
12

Background
To ensure thorough stimulation of long, limited-entry fracturing intervals, an operator uses the BroadBand Sequence fracturing service, which includes pills of chemical diverting agents. The operator wanted clear verification that the diversion was occurring as designed. WellWatcher Stim stimulation monitoring service was used alongside microseismic analysis and step-down tests to clearly show diversion from one perforation cluster to another.
Products Used

WellWatcher Stim Service Verifies Diversion and Stimulation Delivery in Limited-Entry Well

High-frequency monitoring identifies fluid entry points, indicating thorough wellbore coverage with BroadBand Sequence service, Haynesville Shale

Chart showing: WellWatcher Stim Service Verifies Diversion and Stimulation Delivery

To study stimulation and diversion efficiency, WellWatcher Stim service used alongside microseismic analysis and step-down tests to monitor downhole and reservoir events.

Microseismic analysis, shown for one interval of three diversion stages, indicated widely scattered events, making it difficult to identify fluid entry points. Step-down testing indicated only how many perforations were taking fluid. WellWatcher Stim service indicated the approximate depth of the most profound fractures in each stage, clearly showing the diversion of fluid from one cluster to another.

Additional details of the study can be found in SPE-189850.

Products Used

Share This