Schlumberger

BroadBand Shield Fracture-Geometry Control Service

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Increase fracture complexity while avoiding well-to-well communication

BroadBand Shield fracture-geometry control service stimulates production in unconventional wells while limiting the risk of communicating with neighboring wells or fracturing into undesirable zones. Particularly useful for infill wells and multiwell pads in tightly spaced fields, the service delivers engineered fracture stimulation treatments that constrain fracture growth with far-field diversion. The proprietary fluid system includes a proprietary blend of multimodal particles to bridge only the fracture tip and thereby prevent excessive fracture length and height growth.

BroadBand Shield unconventional fracture geometry control service minimizes the risk of communicating with neighboring wells.BroadBand Shield unconventional fracture geometry control service minimizes the risk of communicating with neighboring wells.

Slide the bar left and right across the image to see a comparison. When BroadBand Shield service is used to stimulate an infill well (light green), far-field diversion (yellow) limits fracture growth outside of the designed fracture area, preventing communication with neighboring wells and increasing fracture complexity.

Improve fracture complexity

Where conventional fracturing aims to create one long fracture without much complexity – aiming for long fractures and deep reach—BroadBand Shield service uses far-field diversion to restrict fracture length, using the energy to create more fractures with shorter lengths.

By employing an engineered fracture design that limits fracture growth, the service both optimizes the fracture geometry and increases the fracture complexity in unconventional reservoirs. This combination helps improve reservoir drainage by maximizing reservoir contact within defined areas and limiting pressure drops along the edge and outside of the desired drainage area.

Retain fracture conductivity

Whereas conventional near-wellbore diversion relies on relatively large particles to temporarily bridge perforations and smaller particles and fibers to plug the permeability between the large particles, BroadBand Shield service uses much smaller multimodal diversion particles. The engineered particle sizes and pumping schedules ensure that these particles can pass easily through the perforations and fractures to permanently plug only the fracture tips.

The smaller particle sizes are more easily transported even in relatively low-viscosity fluids and into smaller fractures than are possible with conventional proppant. In addition, the engineered pumping schedules place the diversion material only before conventional proppant stages, which means they have no adverse impact on conductivity in the propped fracture.

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