... on the first attempt. Meanwhile, CDE survived more than 100 impacts without major damage. Based on the previous runs in MDR and KLL fields, a combination of CDE 716 with underexposed trailing cutting structures with axial oscillation motor was generating good ROP on the beginning of the run. Another study from...

... demonstrated a significant time saving of 24% for the shallow well (final depth around 1800 m) and 27% for the deep well (final depth around 4300 m) in the block. These practices have also made a new record of the fastest well completion in 2.17 days and the highest drilling ROP for 141 m/hour with drilling...

... rate of penetration (ROP), rerun-ability, torsional response, and ability to maintain tool-face control during directional drilling. A high-performance drilling application was selected with several existing offset wells using a 12¼-in., five-bladed, 19-mm (519) drill bit design, and a concept bit...

... were achieved. Reduced drilling parameters were used as per anti-collision and lost circulation practices, however, the overall rate of penetration (ROP) and directional behavior with the special disk heel bit was similar to conventional ST bits used in offset wells without collision risks. Turn...

... losses scenario may lead to a failure of the PDM, Measure While Drilling (MWD) tool, jar and any other components of the Bottom Hole Assembly (BHA). This manuscript describes the study of BHA dynamic in total loss scenario aiming to increase Rate of penetration (ROP) and decrease mechanical failures...

... than 80 bits run. A supervised machine-learning algorithm was used to classify drilling parameters that increase ROP and bit endurance. To achieve this goal, our focus was on a) optimizing PDC bit design, drilling hydraulics and b) developing a Drillers Roadmap to ensure optimal parameters were run...

... adjustments of various dynamic control parameters (such as weight on bit, rotary speed, circulation rate). However, selection of the appropriate parameters is not a trivial task. A few iterations in parameter modification may be essential before the desired target rate of penetration (ROP) is obtained...

... with high variance in the unconfined compressive strength (UCS) across these formations. The downhole environment is unsuitable for PDC bits due to impact damage from the variable UCS, and TCI bits provide unsatisfactory rates of penetration (ROP) requiring a new drilling approach for the application. Poor...

.... The client saved multiple trips of PDC bit runs and drilled 50% farther, double rate of penetration (ROP) than the best PDC bit run in the offset wells. The revolutionary bit cutter design works well regardless of any hole size and BHA configuration. This study will present an analysis of the drilling data...

... tool failures, increasing ROP, this translates to a reduction of drilling time by 24%. This paper will share with the industry a case study demonstrating the value of the utilization of the advanced dynamic modeling which has been able to save over 500 K$ per well to the operating company...

.... The process of computing VIP is available in the literature ( Wold et al., 1993 ). Sensitivity Analysis After creating the predictive models for mud losses, ECD, and ROP, an essential step is to quantify and comprehend the effect of each parameter on the model. Once the effect of each parameter...

...) combined solution to overcome the high torsional vibrations challenge and improve drilling energy efficiency. In Kuwait, the first field deployment of the optimized solution reduced vibration levels by 33% and raised Rate of Penetration (ROP) by 42% from average field performance. The adaptive drill bit...

... A large body of work has been published regarding the improvement of drilling performance. Early studies focused on improving performance by identifying the relationship between rate of penetration (ROP) and drilling parameters such as weight on it (WOB), rotational speed (RPM) or mud flow...

... encountered while drilling, the ROP decreased greatly and the cost of drilling operation increase rapidly. With falling oil and natural gas prices, greater efficiency and excellence in well construction is called for, the optimal and fast drilling technology and successful application for shale gas horizontal...

... was developed and manufactured, and its field performance was compared to the model and to PDC bit performance in offset wellbores. The optimized design was manufactured in a 6 1/8-in PDC bit and run on motorized and non-motorized RSS. It resulted in significant ROP increases and a lower cost per foot compared...

..., and the tools and techniques used to drill and complete the wells safely and efficiently. These efforts achieved a milestone record rate of penetration (ROP) in the Middle East of 5,000 feet per day, and as a direct result contributed to minimizing well delivery time by 35 % and average 25% reduction in well...

... bit was run in a motor assembly and improved 14% rate of penetration (ROP) with exceptional dull condition. The drilling parameters indicated that the bit generated higher ROP with lower weight on bit (WOB) compared to other bit types. This performance convinced the operator to run the dual-diameter...

... steering system was also implemented to further improve the drilling speed in the lateral section. The combination of technical approaches led to significant drilling improvement. The rate of penetration (ROP) on bottom at the curve section has improved 200% over conventional drilling. The well drilling...

... the interval with virtually no wear on the bit and significantly improved borehole quality. The second trial of the hybrid bit with a modified, more aggressive design approximately doubled the ROP of a PDC bit while maintaining a smooth hole profile and minimizing torque. PDC bits generally provide faster...

..., tuff and breccia with unconfined compressive strength (UCS) up to 30 kpsi. Polycrystalline Diamond Compact (PDC) bits experience high vibrations and premature wear and bit ring-outs. Overall, PDC performance results in short footage and very low rates of penetration (ROP). For a decade, heavy-set...