Limiter Redesign Process Expands To Cover Flat-Time Operations

Fig. 1: Days vs. depth.

The Fast Drill Process has become a well-known work flow to identify hole-making limiters and mitigate them through redesign to the economic limit of performance. To address operations that do not include drilling of rock, the operator launched a similar effort and work flow that focus on flat-time portions of well construction. This process is yielding significant savings globally and has been accomplished through planning, real-time recognition and response, and collaboration while improving safety performance continuously.

Evolution of the Fast Drill Process

In 2004, the operator started a pilot program to determine if drilling performance could be improved by analyzing and reacting to trends in mechanical specific energy (MSE). MSE is a performance measurement parameter that approximates the bit’s drilling efficiency and is a function of weight on bit (WOB), surface torque, bit rotation per revolution, and rate of penetration (ROP) for a given hole size. Results of a pilot program confirmed that significant ROP performance gains could be obtained simply by monitoring MSE trends and adjusting the drilling parameters (WOB and bit rotation per revolution) at the rigsite to minimize MSE. This process was deployed in 2005 and is known as the Fast Drill Process.

This article, written by Special Publications Editor Adam Wilson, contains highlights of paper SPE 170751, “Maximizing Capital Efficiency by Expanding the Limiter Redesign Process to Flat-Time Operations,” by M.A. Valenta, SPE, M.W. Walker, SPE, P.E. Pastusek, SPE, J.R. Bailey, SPE, W.C. Elks, SPE, S.B. Lewis, SPE, and N.D. Mitchell, ExxonMobil Development Company, prepared for the 2014 SPE Annual Technical Conference and Exhibition, Amsterdam, 27–29 October. The paper has not been peer reviewed.
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Limiter Redesign Process Expands To Cover Flat-Time Operations

01 September 2015

Volume: 67 | Issue: 9


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