GEOLOG’s BitLife bit-wear-monitoring service identifies the optimal time to pull a drilling bit on the basis of wear by monitoring the increase in friction from the bit and comparing other important parameters such as rate of penetration and the computed mechanical specific energy. The frictional increases are identified through the measurement of artificially generated alkene gases. Recently, the service was deployed in an unconventional shale gas well onshore UK. The client’s goal was to achieve optimal bit trip timing, reduce the need for reaming caused by bit wear, and drill with the minimum number of bit runs. The 12¼-in. section had to be drilled through problematic shale formations that caused excessive bit wear and premature bit damage. After deployment, GEOLOG was able to monitor the bit wear in real time, giving the client a better understanding of the condition of the bit, independent of the formation changes and optimizing the time to trip for a bit change. Through the service, the client was able to pull the bit once wear was seen, but before it became excessive, and return to bottom without the excessive reaming previously required, thus improving the footage drilled with the new bit and reducing the number of bits and bit trips required to drill the section.
For more information, visit www.geolog.com.
Don't miss out on the latest technology delivered to your email weekly. Sign up for the JPT newsletter. If you are not logged in, you will receive a confirmation email that you will need to click on to confirm you want to receive the newsletter.