Variability of stresses along a lateral have recently been measured to be as high as 1,000 psi. That’s a LOT of variability behind pipe! What that means for operators is less control of their carefully designed stimulation treatments because they don’t always know if or where this variability is occurring. What makes this such a large issue in some areas is the designs that are executed are done so based on fluid entering a predicted number of entry points based on an assumed constant stress behind pipe.
When stress variabilities inhibit perforation breakdown and diversion, it becomes nearly impossible to control frac dimensions. This can be a rather large issue when trying to avoid breaking into water productive intervals or through known ductile layers that can act as productivity barriers.
Fracture ID has collected over 350 wells worth of mechanical rock properties that can help operators with things as simple as shifting perforations around into like rock to ensure all entry points are within a small stress variance.
We’ll be presenting a paper at the SPE International Hydraulic Fracturing Technology Conference in Oman (October 16-18, 2018). The paper outlines how an operator successfully measured reservoir depletion along the lateral and employed the data to effectively execute their stimulation treatment by staging according to like stresses.
This is just the tip of the iceberg of topics we’ll cover on this blog. We’re excited to interact with everyone on things that matter to you most! What are some problems you’re facing today with drilling, completions and modeling?