Hello Everyone and thank you for joining us weekly during our live Wed(NSI)days!
This week we are excited to welcome Muhammad Mujtaba K., Completion Manager, Seismos
Our guest speaker will be sharing a presentation titled: Evaluating Completion Design Effectiveness Using Acoustic Friction Analysis
This study demonstrates the real-time assessment of perforation efficiency during stage pumping using acoustic friction analysis. Quantifying friction in both the pipe and perforations at each sand step evaluates how perforation erosion and sand ramps contribute to perforation loss during each stage. This method optimizes perforation efficiency to enhance well productivity and treatability.
Researchers used a rapid rate change of 3-5 bpm during pumping to generate a water hammer to measure pressure losses during hydraulic fracture treatment. Researchers then employed acoustic principles to investigate pipe, perforation, and near-wellbore pressures. By analyzing high-frequency pressure data waveforms at different rates, the method distinguishes pipe friction from perforation and near-wellbore pressures, overcoming the limitations of traditional step-rate tests.
Multiple rate drops are performed within each stage to better understand perforation efficiency at each proppant step. By evaluating pressure losses at various points in a stage through a sharp rate drop, the data identified two critical points where increased proppant concentration caused a sudden drop in perforation efficiency. Four of five different cluster designs showed similar perforation efficiency. The tighter cluster spacing design exhibited stress shadowing, mitigated by spacing out the clusters. Additionally, two perforation diameters were tested, and deviations from the specified EHD were investigated using pre-sand rate drop acoustic friction analysis.
Acoustic friction analysis offers a novel approach to evaluate the evolution of perforation efficiency during a stage with a proppant ramp. By utilizing small drops in rate as its source, this methodology enables operators to reduce non-productive time (NPT)to obtain real-time data without the need for downhole tools, jewelry, or other techniques. This method provides an opportunity to take immediate mitigation actions, ensuring the highest possible perforation efficiency and fluid uniformity across the clusters.
Join us this week in welcoming our guest speaker and participating in what is sure to be a great discussion!
Wednesday, July 30th at 9 am CT
Topic: Evaluating Completion Design Effectiveness Using Acoustic Friction Analysis
Guest Speaker: Muhammad Mujtaba K., Completion Manager, Seismos
Host: Dante Guerra, Ph.D., President, NSI Technologies, LLC
FREE Registration Link: https://lnkd.in/e8QWq5A
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