Oklahoma Quakes Linked to Flowback Operations

摘要

Two minor earthquakes recorded near Oklahoma City Sunday may be linked to flowback, the process after a well is hydraulically fractured when water, oil and natural gas flows to the surface. Oklahoma Corporation Commission (OCC) spokesman Matt Skinner said these two quakes - minor ones in the magnitude 1.0-0.2 range - were not natural and not linked to wastewater disposal or fracking operations. When flowback occurs, the ratio of water to oil and natural gas levels out over several days and the well is considered producing.