A Review of Total Job Times for Repair and Maintenance Jobs for Well Servicing Activities in the Permian Basin

摘要

The well servicing function is one of the last frontiers in the exploration and production industry to utilize modern instrumentation coupled with continuous improvement techniques to improve the safety, quality and efficiency of this particular industry segment. In 1999 Newman, et al, described a device for recording critical rig parameters while operating a well service unit. In a later paper (2002) he described several examples of how to utilize the data to gain insight into the operation of the service unit. This current paper analyzes job time data for 4,532 Repair and Maintenance jobs in the Permian Basin performed during 2009-2012. All jobs utilized in the analysis include rod and tubing activities but do not include traditional workover activities such as cementing, logging, perforating, swabbing or acidizing. The data encompasses twenty one counties in the heart of the Permian Basin from a variety of operators, although no individual operators are named. Several standard metrics such as total job time and job time versus depth will be included. The job times will also be subdivided into various groups of activities (categories) such as mobilization, tripping activities, BOP/TAC/PKR activities, transition activities, well control activities, crew break time, safety time, wait time and miscellaneous activities. In addition, ranges of expected performance times will be shown for both total job times and activity groups (categories) based on Statistical Process Control calculations. It is anticipated that by establishing quantitative benchmarks for service rig activities, producers will be able to identify areas for operational improvement, thereby resulting in an increase in the well service rig productivity. The basic data for this study has been obtained from the Key Energy Services Database. The authors are not aware of any previous papers which have presented this type of detailed well servicing time based information.