Results indicate a robust reservoir was successfully created
 |
| A 3-D data plot showing the EGS reservoir. (Courtesy Altarock) |
Stimulation at the Newberry EGS injection well began on September 23, and continued for just over three weeks, wrapping up on October 15. We began stimulation with a step-rate injectivity test, reaching pressures as high as 2,800 psi at the wellhead. We continued to run the pumps at high pressures over most of the stimulation period, reducing the pressure when needed to replace leaky gaskets and valves and inject diverter.
The first microseismic events from stimulation were recorded on September 24 and continued throughout stimulation, totaling over 250 events recorded to date. Microseismic event data is currently being reviewed by seismologists and while we expect some location adjustments, the initial data indicates a robust reservoir was successfully created. Microseismic data is available for your viewing pleasure at the Lawrence Berkeley National Laboratory website and the Pacific Northwest Seismic Network.
Distributed temperature sensing (DTS) cable and pressure temperature spinner (PTS) survey data indicate six major connection points between the reservoir and the well bore. Over the past three weeks, we analyzed data and developed a plan to further improve reservoir connectivity to the wellbore. The second stage of stimulation for 2014 will run from November 11-21. We will report on those results in the next post.
The first microseismic events from stimulation were recorded on September 24 and continued throughout stimulation, totaling over 250 events recorded to date. Microseismic event data is currently being reviewed by seismologists and while we expect some location adjustments, the initial data indicates a robust reservoir was successfully created. Microseismic data is available for your viewing pleasure at the Lawrence Berkeley National Laboratory website and the Pacific Northwest Seismic Network.
Distributed temperature sensing (DTS) cable and pressure temperature spinner (PTS) survey data indicate six major connection points between the reservoir and the well bore. Over the past three weeks, we analyzed data and developed a plan to further improve reservoir connectivity to the wellbore. The second stage of stimulation for 2014 will run from November 11-21. We will report on those results in the next post.
