Application Focused Drill Bit Engineering Delivers Consistent Improvement in Efficient Drilling Performance

2016 ◽  
Author(s):  
Waleed Agawani ◽  
Abdulla M. Al-Ajmi ◽  
Mohamed Taha ◽  
Ashish Gohain ◽  
Marwa Omar ◽  
...  
Keyword(s):  
Drill Bit ◽  
Drilling Performance

Engineered Hybrid Drill Bit Technology Doubles Drilling Performance in Impact-Prone Carbonates Heavy Oil Application

2018 ◽  
Author(s):  
Waleed Agawani ◽  
Dakhil R. Al-Enezi ◽  
Mehul Pandya ◽  
Pravind Gupta ◽  
Atef Abdelhamid ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Drill Bit ◽  
Drilling Performance

Hybrid Drill Bit Technology on Performance Motor Bottom Hole Assembly Yields Breakthrough Drilling Performance in Kuwait

2019 ◽  
Author(s):  
Waleed Al-Baghli ◽  
Mohammad Al-Salamin ◽  
Sulaiman Sulaiman ◽  
Atef Abdelhamid ◽  
Ali Alnemer ◽  
...  
Keyword(s):  
Drill Bit ◽  
Drilling Performance ◽  
Bottom Hole ◽  
Bottom Hole Assembly

Setting a New Standard: PDC Bits Equipped with Compact Vibration Recorders Monitor Entire Run and Reveal Stick-Slip Mitigation System Dysfunction and Downhole Motor Under Performance

2021 ◽  
Author(s):  
Gilles Pelfrene ◽  
Bruno Cuilier ◽  
Dhaker Ezzeddine ◽  
Alfazazi Dourfaye ◽  
Dimo Dimov ◽  
...  
Keyword(s):  
Real Time ◽  
Cost Effective ◽  
Fine Tuning ◽  
Drill Bit ◽  
Stick Slip ◽  
Drilling Performance ◽  
Horizontal Drain ◽  
Monitoring Tools ◽  
Bottom Hole Assembly ◽  
Sensor Package

AbstractDownhole vibration measurements are used real-time and post-run to monitor drilling dynamics. Real-time monitoring tools are applied to facilitate immediate corrective actions but their deployment adds operational constraints and costs. This paper describes a new high-capability vibration recorder embedded in the drill bit as a standard component. The analysis of two case studies in the Middle East shows how memory devices available at a reduced cost and on every run are a valuable option for many appraisal or development wells.Developing a fleet of reliable downhole recording tools typically takes years and involves teams of experts in various fields. The paper describes the strategy followed by a drill bit manufacturer to develop and deploy a compact, high capability and cost-effective vibration recorder to provide continuous readings of accelerations, rotation speed (RPM) and temperature at 100Hz and over 250 hours. Sensors and batteries have been packaged to fit into the drill bit shank or elsewhere in the bottom hole assembly (BHA). The recording starts automatically and thus removes the need for onsite personnel. The paper also presents proprietary data analytics software used to retrieve, process and synchronize the recorded data with other available data (mud logs, Measurement/Logging While Drilling logs) and to present critical drilling events.In the first application, the 8 ½-in. bit drilled a 20,000 ft horizontal drain. More than 250 hr of data were recorded showing intense levels of stick-slip. During the entire run, the drilling team deployed several strategies to mitigate stick-slip, including the use of two surface-based stick-slip mitigation systems. The analysis shows that these systems are sometimes unsuccessful in mitigating stick-slip and are difficult to calibrate. It is demonstrated how the vibration recorder may contribute to fine tuning these mitigation efforts through optimization of their settings. In the second application, the vibration recorder was mounted on a 12 1/4-in. bit used to drill 5,000 ft through cement and formation. The analysis shows the motor was subjected to erratic RPM cycles, leading to frequent stalls and acceleration peaks during the run. It is shown how motor performance then decreased consistently during the last hundreds of feet of the section and how this affected rate of penetration (ROP).Deployment of a vibration recorder over the entire drill bit manufacturer's fleet allows continuous monitoring of critical drilling issues and malfunctions related to a variety of drilling equipment that enables the operator to improve drilling performance. The bit-sensor package makes high frequency data systematically available at a reduced cost for every drilling application.

Introduction of 25mm-PDC Cutters in the Latest Drill Bit Technology Leads to Multiple Drilling Performance Records and Reduces Days to Production in Oman

2016 ◽  
Author(s):  
Ahmed Al-Hinaai ◽  
Saleh Al Esry ◽  
Dan E. Scott ◽  
Danielle Fuselier ◽  
Roger Lee ◽  
...  
Keyword(s):  
Drill Bit ◽  
Drilling Performance

Effect of Micro Scale Textures on Drilling Performance of Carbide Tools in Dry and Wet Machining of Ti-6Al-4V

2016 ◽  
Author(s):  
Niketh Saseendran ◽  
Samuel Gonumakulapalle Lodi
Keyword(s):  
Laser Scanning ◽  
Thrust Force ◽  
Average Diameter ◽  
Mechanical And Thermal Properties ◽  
Drill Bit ◽  
Drilling Performance ◽  
Electron Microscopy Analysis ◽  
Microscopy Analysis ◽  
Dry And Wet Conditions ◽  
Micro Dimples

Surface textures helps in controlling the tribological, optical, mechanical, and thermal properties on the surfaces. The recent advancements in precision machining, makes it possible to generate micro/nano patterns on the surfaces with high dimensional control. In the present work an attempt has been made to reduce the thrust force and torque developed during drilling super alloy, Ti-6Al-4V by creating micro dimples on the tool surfaces. Circular dimples having an average diameter of 35 micrometer were created on the flute and margin side of the drill bit using Nd:YAG laser. Scanning electron microscopy analysis has been done to evaluate the quality of generated micro dimples. Drilling experiments were carried out on the titanium alloy in both dry and wet conditions using flute textured, margin textured and non textured tool for understanding the effect of micro textures on the tool. From the force analysis it was observed that in both dry and wet conditions there was a considerable reduction in thrust force and torque. Surface inspections of the drill bit were performed using Stereomicroscope for investigating the titanium buildup on the cutting tool surfaces. Results showed that the margin textured tool performed better than the flute textured and untextured tool in both dry and wet conditions.

Hybrid Drill Bit Improves Drilling Performance in Heterogeneous Formations in Brazil

2011 ◽  
Author(s):  
Ian James Thomson ◽  
Raul M. Krasuk ◽  
Nalon Silva ◽  
Kertis Romero
Keyword(s):  
Drill Bit ◽  
Drilling Performance ◽  
Heterogeneous Formations

scholarly journals Prediction Model of Drilling Performance for Percussive Rock Drilling Tool

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Dae-Ji Kim ◽  
Jaewon Kim ◽  
Booyeong Lee ◽  
Min-Seok Shin ◽  
Joo-Young Oh ◽  
...  
Keyword(s):  
Prediction Model ◽  
Dynamic Effect ◽  
Drill Bit ◽  
Motion Model ◽  
Percussive Drilling ◽  
Drilling Tool ◽  
Rock Types ◽  
Drilling Performance ◽  
The Impact

This study suggests a method for quantitatively estimating the drilling performance of the down-the-hole (DTH) hammer during percussive drilling of rock surfaces. A pneumatic dynamic model of the DTH hammer was developed that considers the mass flow rate relations representing the orifice opening areas of the air tube, the piston, and bit flushing channels. A drill bit motion model was developed to represent the dynamics of a drill bit impacted by a dropped piston and explain the impact stress propagation and rock-crushing mechanism. The rock-crushing effect of the drill button bit was measured through a piston drop test. The pneumatic hammer model and drill bit motion model were then combined in a prediction model to determine the impact efficiency according to different rock types (i.e., soft, medium-hard, and very hard). The drilling efficiency was defined as the input value of the prediction model, which was used to simulate the drilling performance of DTH hammers considering the rock type and dynamic effect of the drill bit. Finally, the simulation results were compared with the results of in situ drilling tests for verification.

Optimal button arrangement of a percussion drill bit and its operating condition for improving drilling efficiency

2017 ◽  
Vol 232 (16) ◽  
pp. 2887-2898 ◽  
Author(s):  
Hoon Kang ◽  
Jin-Young Park ◽  
Jung-Woo Cho ◽  
Jin-Seok Jang ◽  
Kun-Woo Kim ◽  
...  
Keyword(s):  
Evaluation Method ◽  
Optimal Solution ◽  
Operating Conditions ◽  
Rock Surface ◽  
Drill Bit ◽  
Operating Condition ◽  
Drilling Performance ◽  
Impact Area ◽  
Specific Operating Condition ◽  
The Impact

This paper proposes an optimal button arrangement of a percussion drill bit and its operating condition to improve drilling efficiency. A new evaluation method is introduced for the button arrangement that utilizes the superimposed impact area, blank area, and drilling deviation moment as the quantitative indices to evaluate the impact of buttons on the rock surface. To determine the optimal button arrangement and its operating conditions, a progressive metamodel-based design optimization was conducted using the new evaluation indices as the analysis response, and then the optimal solution was determined through iteration. Consequently, all the button evaluation indices were reduced significantly and the impact areas were distributed uniformly under a specific operating condition. Additionally, the drilling performances of the optimal button arrangement were investigated according to the operating conditions to obtain the maximum drilling performance in terms of the drilling machine operation.

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