Waterfrac treatments are one of the primary techniques for hydraulic
fracturing in low permeability reservoirs. The success of these
treatments requires the proppant to be transported deep into
the created fracture and maintain its fracture flow capacity
over the lifetime of the well.
Crushing and Fines Generation in Waterfracs
The most predominant problem that occurs due to improper proppant
selection is proppant crushing. Proppant crushing occurs when
the fracture closure stress exceeds the strength of the proppant
that is placed in the fracture. This leads to fines generation,
resulting in lower fracture flow capacity and diminished well
5% fines generation = 60% decrease
in fracture flow capacity (SPE 3298).
Realistic Test Procedures
To more accurately simulate downhole conditions, Hexion developed
two test procedures: the Wet, Hot Crush Test and the Cyclic Stress
Test. These tests demonstrate how different waterfrac proppants
perform under “real-world” conditions.
Benefits of Prime Plus
the Prime Plus Brochure (PDF)
- Superior "Real-World" Fracture Flow Capacity
Compared to Uncoated Sands, Tempered Sands, and Uncoated
- Eliminates Proppant Flowback – The Only Partially
Cured Waterfrac Proppant Available
- Significantly Less Fines Generation Compared to Other Waterfrac
- Partially Cured Stress Bond™ (SB) Technology Prevents
- Plants and Transloads Strategically Located Near Key Waterfrac
Plus Case History
An East Texas operator fractured two similar offsetting Lower
Cotton Valley wells; one with the partially cured Prime Plus
40/70 and one with a conventional, tempered resin coated 40/70
proppant. Initial production on the Prime Plus well was 143%
higher and 90-day production was more than 300% higher.
the Prime Plus Case History (PDF)
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