Relevant bibliographies by topics / PDC bit performance

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'PDC bit performance'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "PDC bit performance"

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JPT staff, _. "Steel-Body PDC-Bit Technology Improves Bit Performance." Journal of Petroleum Technology 50, no. 12 (December 1, 1998): 42–43. http://dx.doi.org/10.2118/1298-0042-jpt.

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JPT staff, _. "PDC-Bit Performance in Deep Shales." Journal of Petroleum Technology 50, no. 12 (December 1, 1998): 44–46. http://dx.doi.org/10.2118/1298-0044-jpt.

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Andersen, E. E., and J. J. Azar. "PDC Bit Performance Under Simulated Borehole Conditions." SPE Drilling & Completion 8, no. 03 (September 1, 1993): 184–88. http://dx.doi.org/10.2118/20412-pa.

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Ayop, Ahmad Zhafran, Ahmad Zafri Bahruddin, Belladonna Maulianda, Aruvin Prakasan, Shamammet Dovletov, Eziz Atdayev, Ahmad Majdi Abdul Rani, et al. "Numerical modeling on drilling fluid and cutter design effect on drilling bit cutter thermal wear and breakdown." Journal of Petroleum Exploration and Production Technology 10, no. 3 (October 11, 2019): 959–68. http://dx.doi.org/10.1007/s13202-019-00790-7.

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Abstract The unconventional reservoir geological complexity will reduce the drilling bit performance. The drill bit poor performance was the reduction in rate of penetration (ROP) due to bit balling and worn cutter and downhole vibrations that led to polycrystalline diamond compact (PDC) cutter to break prematurely. These poor performances were caused by drilling the transitional formations (interbedded formations) that could create huge imbalance of forces, causing downhole vibration which led to PDC cutter breakage and thermal wear. These consequently caused worn cutter which lowered the ROP. This low performance required necessary improvements in drill bit cutter design. This research investigates thermal–mechanical wear of three specific PDC cutters: standard chamfered, ax, and stinger on the application of heat flux and cooling effect by different drilling fluids by using FEM. Based on simulation results, the best combination to be used was chamfered cutter geometry with OBM or stinger cutter geometry with SBM. Modeling studies require experimental validation of the results.
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Li, Yan, Yin Fang Song, and Yi Lin Mao. "Study on the Statics Analysis of Promoting the Drilling Efficiency of PDC Anchor Bit." Advanced Materials Research 989-994 (July 2014): 2749–52. http://dx.doi.org/10.4028/www.scientific.net/amr.989-994.2749.

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PDC anchor bit has the very good rock fragmentation abilities with high penetration rate and long drilling time,which makes the drilling efficiency highly improved and the economic benefit remarkably increased.Now PDC anchor bit has been widely used in drilling field.But for the reason that it is sensitive to the formation characteristics and working conditions,it doesn’t achieve good performance in homogeneous formations such as conglomerate and interbeded sections.In order to reach the goal of enlarging the scope of PDC anchor bit application in oilfields,it is necessary to study the breakage mechanism in conglomerate formations and design the PDC anchor bit optimally.
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Karasawa, H., and S. Misawa. "Development of New PDC Bits for Drilling of Geothermal Wells—Part 1: Laboratory Testing." Journal of Energy Resources Technology 114, no. 4 (December 1, 1992): 323–31. http://dx.doi.org/10.1115/1.2905960.

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Rock cutting, drilling and durability tests were conducted in order to obtain data to design polycrystalline diamond compact (PDC) bits for geothermal well drilling. Both conventional and new PDC bits with different rake angles were tested. The rock cutting tests revealed that cutting forces were minimized at −10 deg rake angle independent of rock type. In drilling and durability tests, a bit with backrake and siderake angles of −10 or −15 deg showed better performance concerning the penetration rate and the cutter strength. The new PDC bit exhibited better performance as compared to the conventional one, especially in hard rock drilling. Furthermore, a new PDC core bit (98.4 mm o. d., 66 mm i. d.) with eight cutters could be successfully applied to granite drilling equally as well as a bit with twelve cutters.
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Clement, Alaba O. "Comparative analysis of drilling performance of kymera and PDC bits in salt formation." Brilliant Engineering 1, no. 2 (January 5, 2020): 25–28. http://dx.doi.org/10.36937/ben.2020.002.005.

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The study compares the drilling performance of Kymera and PDC bits in salt formation using River and Delta State Continental Shelf of Nigeria as a case study. The measurement while drilling (MWD) and the logging while drilling (LWD) methods were used to measure the real time well drilling operation. well formation and drilling statistics. The data obtained from the Ogbaimbiri. Ossiomo. Utorogu and Okporhuftu wells have the penetration rate of 6.2 m/hr. 5.9 m/hr. 12.2 m/hr. 6.3 m/hr for Kymera bit and 4.2 m/hr. 3.4 m/hr. 6.8 m/hr. 3.9 m/hr for PDC bit respectively. The pearson correlation coefficient has a value of r = 0.897. n = 4. p<0.05 and r = 0.784. n = 4. p<0.05 for both kymera and PDC bits. The results established a strong and positive correlation between the penetration rate and distance drilled in each bit. It also shows that the higher the penetration rate the more the distance drilled by each bit. The study concluded that the Kymera bit was more efficient as it was able to penetrate the different formations with a lesser time and at a greater penetration rate.
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Wojtanowicz, A. K., and E. Kuru. "Mathematical Modeling of PDC Bit Drilling Process Based on a Single-Cutter Mechanics." Journal of Energy Resources Technology 115, no. 4 (December 1, 1993): 247–56. http://dx.doi.org/10.1115/1.2906429.

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An analytical development of a new mechanistic drilling model for polycrystalline diamond compact (PDC) bits is presented. The derivation accounts for static balance of forces acting on a single PDC cutter and is based on assumed similarity between bit and cutter. The model is fully explicit with physical meanings given to all constants and functions. Three equations constitute the mathematical model: torque, drilling rate, and bit life. The equations comprise cutter’s geometry, rock properties drilling parameters, and four empirical constants. The constants are used to match the model to a PDC drilling process. Also presented are qualitative and predictive verifications of the model. Qualitative verification shows that the model’s response to drilling process variables is similar to the behavior of full-size PDC bits. However, accuracy of the model’s predictions of PDC bit performance is limited primarily by imprecision of bit-dull evaluation. The verification study is based upon the reported laboratory drilling and field drilling tests as well as field data collected by the authors.
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JPT staff, _. "Cooperative Approach Yields Better Understanding of PDC-Bit Performance." Journal of Petroleum Technology 50, no. 12 (December 1, 1998): 34–36. http://dx.doi.org/10.2118/1298-0034-jpt.

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Huang, Kuilin, Chunxiao Zhou, Yingxin Yang, Haitao Ren, and Qingzhi Niu. "Working Load Characteristics of the PDC-Cone Composite Bit under Impact and Scraping." Shock and Vibration 2020 (January 31, 2020): 1–9. http://dx.doi.org/10.1155/2020/7540519.

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The PDC-roller hybrid bit combines the cutting structure of a tricone bit with a PDC bit. It can achieve good results, breaking rock in directional drilling, drilling in inhomogeneous formations, and drilling in formations with high levels of hardness, and it can achieve the engineering goals of increasing speed and efficiency. First, we analyzed the rock-breaking mechanism of the composite bit and the principles of cushioning, torsion reduction, and prebreaking of the cone teeth during the breaking of rock. Second, cutting load models of the cone teeth and PDC teeth were established through unit experiments and through the calculation methods of the axial force, lateral force and torque, and lateral bending moment of the composite bit. Third, the digital simulation and analysis system was improved to include the function of calculating the working load of the composite bit. Taking an 8-1/2 inch, 2 + 4 type composite bit as an example, the working load characteristics of three cutting structures (cone, blade, and composite) were analyzed and compared. The analysis shows that the composite bit has high drilling efficiency, obvious deviation advantages, and good working stability under specific formation conditions. This paper provides technical support for the performance analysis, formation adaptability evaluation, and cutting structure design optimization of the PDC-cone bit.
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Dissertations / Theses on the topic "PDC bit performance"

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Mazen, Ahmed Z., Nejat Rahmanian, Iqbal M. Mujtaba, and A. Hassanpour. "Effective mechanical specific energy: A new approach for evaluating PDC bit performance and cutters wear." Elsevier, 2020. http://hdl.handle.net/10454/18154.

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Yes
Predicting the PDC bit performance during drilling operation is important for the cost effectiveness of the operation. The majority of PDC bits are assessed based on their performance that are relative to offset wells. Determination of mechanical specific energy (MSE) in real time and compare it with the known MSE for a sharp bit to assess the bit life has been utilized by several operators in the past. However, MSE still cannot be used to predict the bit performance in exploration wells and also it cannot assess the bit efficiency in the inner and outer cones. A more precise approach needs to be devised and applied to improve the prediction of bit life and the decision when to pull the bit out of the hole. Effective mechanical specific energy (EMSE) developed in this work is a new wear and performance predictive model that is to measure the cutting efficiency based on number of cutters, which contact the rock as a function of weight on bit (WOB), rotary speed (RPM), torque, and depth of cut (DOC). This model modifies the previous MSE model by incorporating such parameters and including detailed design of the bit, number of blades, cutter density, cutter size, and cutting angle. Using this approach together with the analysis of rock hardness, a level of understanding of how the drilling variables influence the bit performance in the inner and outer cone is improved, and a convenient comparison of the bit condition in the frame of the standard bit record is achieved. This work presents a new simple model to predict the PDC cutters wear using actual data from three sections drilled in three oil wells in Libya. It is found that the obtained results are in well agreement with the actual dull grading shown in the bit record.
The full-text of this article will be released for public view at the end of the publisher embargo on 20 Oct 2021.
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Ersoy, A. "Performance analysis of polycrystalline diamond compact (PDC) core bits in rocks." Thesis, University of Nottingham, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309552.

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Shah, Syed Mohammad Ali. "The optimisation of PCD bit performance in coal measure rocks." Thesis, University of Nottingham, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385944.

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Todorov, Borislav St. "Performance evaluation of 12 and 14-bit converter technology for software radio applications." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0016/MQ57742.pdf.

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Cruz, Curtis Matthew. "Characterizing softball bat modifications and their resulting performance effects." Online access for everyone, 2005. http://www.dissertations.wsu.edu/Thesis/Spring2005/c%5Fcruz%5F050505.pdf.

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Johnson, Conrad C. "Significant Trade Contractor Performance Characteristics as Evaluated by Big-D Construction." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd1764.pdf.

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Tunç, Hakan Albeni Mesut. "Bir yenilik göstergesi olarak patent ve Türkiye patent performansı /." Isparta : SDÜ Sosyal Bilimler Enstitüsü, 2008. http://tez.sdu.edu.tr/Tezler/TS00610.pdf.

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Gomez, Elisa Valderas. "Performance of the Kenward-Project when the Covariance Structure is Selected Using AIC and BIC." Diss., CLICK HERE for online access, 2004. http://contentdm.lib.byu.edu/ETD/image/etd431.pdf.

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Pederick, Stuart. "Investigation of the effect of waterjet created slots in improving the performance of tricone drill bits in hard rock /." [St. Lucia, Qld.], 2005. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18616.pdf.

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Ménudier, Cyrille. "Caractérisation des performances d’antennes à réflecteurs paraboliques illuminées par une source focale BIE : application à l’optimisation d’une couverture multimédia multi-faisceaux." Limoges, 2007. https://aurore.unilim.fr/theses/nxfile/default/b4c850a8-8764-4e21-b926-0dda8386e3df/blobholder:0/2007LIMO4038.pdf.

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L’antenne BIE à défaut multi-sources peut être une solution de substitution aux sources focales existantes ou conçues actuellement pour les antennes à réflecteurs dédiées aux télécommunications spatiales haut débit. En diminuant le nombre de focaliseurs, la solution reposant sur l’antenne BIE permettrait de réduire la masse, l’encombrement et bien sûr, le coût du satellite. Les performances de ce type de source focale n’ont cependant pas été caractérisées. Cette étude est l’objet de ce mémoire. Après avoir présenté un état de l’art des systèmes de télécommunications spatiales multifaisceaux, nécessaire pour appréhender les propriétés de ces dispositifs, un outil de calcul de performances a été développé. Il est ensuite appliqué à la caractérisation de l’antenne BIE à défaut pour mettre en avant ses différents potentiels. Cette étude a permis une amélioration significative des performances de la source focale et aussi de mettre en place une méthode de conception, qui manquait jusqu’ici. Les résultats obtenus, très satisfaisants, ont ensuite été validés par la réalisation d’un prototype
The multisources EBG antenna with defect may be an alternative solution to classical focal feed dedicated to high data rate coverage with reflector antennas onboard satellite. By reducing the number of reflectors, the EBG antenna can decrease the satellite weight and cost. However, its performances must be studied before concluding on its interest. This is the aim of this thesis. After presenting a state of the art of multibeam solution for space telecommunications, a software developed to characterize these performances is presented. It has been used to determine the EBG antenna focal feed advantages and drawbacks. Then, a useful design method is presented. As good performances have been obtained, a prototype has been realized to validate all these results
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Book chapters on the topic "PDC bit performance"

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Hussaini Jagaba, Ahmad, Shamsul Rahman Mohamed Kutty, Gasim Hayder Ahmed Salih, Azmatullah Noor, Mohammad Fakhuma Ubaidillah bin Md Hafiz, Nura Shehu Aliyu Yaro, Anwar Ameen Hezam Saeed, Ibrahim Mohammed Lawal, Abdullahi Haruna Birniwa, and Abdullahi Usman Kilaco. "Palm Oil Clinker as a Waste by-Product: Utilization and Circular Economy Potential." In Elaeis guineensis [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.97312.

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Conservation of natural resources to create ecological balance could be significantly improved by substituting them with waste by-products. Palm oil industry operations increases annually, thereby generating huge quantity of waste to be dumped into the landfill. Palm oil clinker (POC) is a solid waste by-product produced in one of the oil palm processing phases. This chapter is designed to highlight the generation, disposal problems, properties and composition of POC. The waste to resource potentials of POC would be greatly discussed in the chapter starting with the application of POC in conventional and geopolymer structural elements such as beams, slabs, columns made of either concrete, mortar or paste for coarse aggregates, sand and cement replacement. Aspects such as performance of POC in wastewater treatment processes, fine aggregate and cement replacement in asphaltic and bituminous mixtures during highway construction, a bio-filler in coatings for steel manufacturing processes and a catalyst during energy generation would also be discussed. Circular economy potentials, risk assessment and leaching behavior during POC utilization would be evaluated. The chapter also discusses the effectiveness of POC in soil stabilization and the effect of POC pretreatment for performance enhancement. Towards an efficient utilization, it is important to carry out technical and economic studies, as well as life cycle assessments, in order to compare all the POC areas of application described in the present review article. POC powder has proven to be pozzolanic with maximum values of 17, 53.7, 0.92, 3.87, 1.46, for CaO, SiO2, SO3, Fe2O3 and Al2O3. Therefore, the present chapter would inspire researchers to find research gaps that will aid the sustainable use of agroindustry wastes. The fundamental knowledge contained in the chapter could also serve as a wake-up call for researchers that will motivate them to explore the high potential of utilizing POC for greater environmental benefits associated with less cost when compared with conventional materials.
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"Pixel Value Differencing Steganography." In Advanced Digital Image Steganography Using LSB, PVD, and EMD, 43–74. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-7516-0.ch003.

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In this chapter, the author describes the different categories of pixel value differencing (PVD) techniques and their performances. The main goal in PVD technique is to find the pixel value difference. If it is large, hide the larger number of bits; otherwise, hide the lesser number of bits. The traditional PVD techniques operates on 2, 4, and 8 pixel blocks to calculate the pixel value difference and then take the embedding decision. The traditional PVD techniques use a range table to decide the embedding capacity in a block. The adaptive PVD techniques do not use any range table and calculate the embedding capacity dynamically for every block based on the pixel values of that block. Most of the traditional PVD techniques are attacked by pixel difference histogram (PDH) analysis, but adaptive PVD techniques are tolerant to PDH analysis.
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Gupta, Priya, Anu Gupta, and Abhijit Asati. "Detailed Analysis of Ultra Low Power Column Compression WALLACE and DADDA Multiplier in Sub-Threshold Regime." In Advances in Computational Intelligence and Robotics, 78–123. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-4666-9474-3.ch004.

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In this chapter, the design and comparative analysis is done in between the most well-known column compression multipliers by Wallace and Dadda in sub-threshold regime. In order to reduce the hardware which ultimately reduces area, power and overall power delay product, an energy efficient basic modules of the multipliers like AND gates, half adders, full adders and partial product generate units have been analyzed for sub-threshold operation. At the last stage ripple carry adder is used in both multipliers. The performance metrics considered for the analysis of the multipliers are: power, delay and PDP. Simulation studies are carried out for 8x8-bit and 16x16-bit input data width. The proposed circuits show energy efficient results with Spectre simulations for the TSMC 180nm CMOS technology at 0.4V supply voltage. The proposed multipliers so implemented outperform its counterparts exhibiting low power consumption and lesser propagation delay as compared to conventional multipliers.
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Mohanty, Sanatan, and Sarat Kumar Patra. "Performance Evaluation of Quality of Service in IEEE 802.15.4-Based Wireless Sensor Networks." In Sensor Technology, 644–78. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-2454-1.ch031.

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Wireless Sensor Network (WSN) consists of many tiny, autonomous sensor nodes capable of sensing, computation and communication. The main objective of IEEE 802.15.4 based WSN standard is to provide low cost, low power and short range communication. Providing QoS in WSN is a challenging task due to its severe resource constraints in terms of energy, network bandwidth, memory, and CPU. In this chapter, Quality of Service (QoS) performance evaluation has been carried out for IEEE 802.15.4 networks based WSN star and mesh topology using routing protocols like AODV, DSR and DYMO in QualNet 4.5 simulator. Performance evaluations metrics like Packet Delivery Ratio (PDR), throughput, average end to end delay, energy per goodput bit, network lifetime of battery model and total energy consumption which includes transmission, reception, idle and sleep mode were considered for both the topology. From the simulation studies and analysis, it can be seen that on an average DSR and DYMO performs better than AODV for different traffic load rates.
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Mohanty, Sanatan, and Sarat Kumar Patra. "Performance Evaluation of Quality of Service in IEEE 802.15.4-Based Wireless Sensor Networks." In Advances in Wireless Technologies and Telecommunication, 213–48. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-0486-3.ch009.

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Wireless Sensor Network (WSN) consists of many tiny, autonomous sensor nodes capable of sensing, computation and communication. The main objective of IEEE 802.15.4 based WSN standard is to provide low cost, low power and short range communication. Providing QoS in WSN is a challenging task due to its severe resource constraints in terms of energy, network bandwidth, memory, and CPU. In this chapter, Quality of Service (QoS) performance evaluation has been carried out for IEEE 802.15.4 networks based WSN star and mesh topology using routing protocols like AODV, DSR and DYMO in QualNet 4.5 simulator. Performance evaluations metrics like Packet Delivery Ratio (PDR), throughput, average end to end delay, energy per goodput bit, network lifetime of battery model and total energy consumption which includes transmission, reception, idle and sleep mode were considered for both the topology. From the simulation studies and analysis, it can be seen that on an average DSR and DYMO performs better than AODV for different traffic load rates.
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Barkouk, Hamid, and El Mokhtar En-Naimi. "Intelligent Transport Systems Services in VANETs and Case Study in Urban Environment." In Innovative Applications of Big Data in the Railway Industry, 183–207. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-3176-0.ch008.

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The VANET (Vehicular Ad hoc Network) is a collection of mobile nodes forming a temporary network on variable topology, operating without base station and without centralized administration. Communication is possible between vehicles within each other's radio range as well as with fixed components on road side infrastructure. The characteristics of VANET network that distinguishes it from other ad hoc networks, such as high mobility and communication with the infrastructure to support security or comfort applications, have prompted researchers to develop models and mobility specific protocols. The main goal of this chapter is firstly to compare the performance of three Ad hoc routing protocols: OLSR, AODV and DSDV, and secondly to examine the impact of varying mobility, density and pause time on the functionality of these protocols. The results of this chapter demonstrate that AODV have better performance in terms of Throughput and Packets Delivery Rate (PDR), whereas OLSR have best performance in terms of Packet Delivery Time (Delay).
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Conference papers on the topic "PDC bit performance"

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Smith, L. M., V. P. Perrin, and R. Delwiche. "Steel Body PDC Bit Technology Demonstrates Performance Improvements." In IADC/SPE Asia Pacific Drilling Technology. Society of Petroleum Engineers, 1998. http://dx.doi.org/10.2118/47815-ms.

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Cheatham, C. A., and D. A. Loeb. "Effects of Field Wear on PDC Bit Performance." In SPE/IADC Drilling Conference. Society of Petroleum Engineers, 1985. http://dx.doi.org/10.2118/13464-ms.

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Al-Salah, Fawaz, Saad Al-Mejmed, Atef Abdelhamid, Ali Alnemer, Tahir Gada, and Mehul Pandya. "Hybrid Bit Technology Deployment Yields Breakthrough Drilling Performance & Cost Savings for Operator." In IADC/SPE Asia Pacific Drilling Technology Conference. SPE, 2021. http://dx.doi.org/10.2118/201018-ms.

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Abstract Optimized drilling performance and minimized cost per well are key objectives for operators in the current challenging oil and gas industry. The process of collecting lessons learned and designing new drill bit technologies based on these learnings is critical for optimizing drilling performance and reducing non-productive time (NPT). Southeast Kuwait onshore wells are drilled with conventional drill bit technology such as tungsten carbide insert (TCI) and polycrystalline diamond compact (PDC) bits on rotary or directional-motor bottom hole assemblies (BHA). This paper discusses the analysis that enabled breakthrough-drilling performance of 16-in. hybrid drill bit technology, delivering outstanding results and cost savings for an operator. The non-homogeneous carbonate formation in these onshore wells cause impact damage, limit the drilling efficiency of PDC and TCI bits, and result in a low rate of penetration (ROP) and poor dull conditions. A collaborative technical analysis identified key performance objectives to ensure a step change in section drilling performance. The analysis involved reviewing: Post-run dull conditions Operating parameters Formation compressive strengths Bit design Previous deployments results On Multiple wells, advanced hybrid bit technology and optimized drilling methods achieved outstanding 73-percent improvement in ROP over conventional technologies, saving operator's 3.8 drilling days and more than 27% of drilling costs. The hybrid design completed two consecutive best in class (BIC) wells in southeast Kuwait compared with the typical TCI performance of a single well per bit.
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Nygaard, Runar, and Geir Hareland. "How to select PDC bit for optimal drilling performance." In Rocky Mountain Oil & Gas Technology Symposium. Society of Petroleum Engineers, 2007. http://dx.doi.org/10.2118/107530-ms.

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Witt-Doerring, Ysabel, Paul Pastusek Pastusek, Pradeepkumar Ashok, and Eric van Oort. "Quantifying PDC Bit Wear in Real-Time and Establishing an Effective Bit Pull Criterion Using Surface Sensors." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/205844-ms.

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Abstract It is useful during drilling operations to know when bit failure has occurred because this knowledge can be used to improve drilling performance and provides guidance on when to pull out of hole. This paper presents a simple polycrystalline diamond compact (PDC) bit wear indicator and an associated methodology to help quantify wear and failure using real-time surface sensor data and PDC dull images. The wear indicator is used to identify the point of failure, after which corresponding surface data and dull images can be used to infer the cause of failure. It links rotary speed (RPM) with rate of penetration (ROP) and weight-on-bit (WOB). The term incorporating RPM and ROP represents a "sliding distance", i.e. the number of revolutions required to drill a unit distance of formation, while the WOB represents the formation hardness or contact pressure applied by the formation. This PDC bit wear metric was applied and validated on a data set comprised of 51 lateral production hole bit runs on 9 wells. Surface electric drilling recorder (EDR) data alongside bit dull photos were used to interpret the relationship between the wear metric and observed PDC wear. All runs were in the same extremely hard (estimated 35 – 50 kpsi unconfined compressive strength) and abrasive shale formation. Sliding drilling time and off-bottom time were filtered from the data, and the median wear metric value for each stand was calculated versus measured hole depth while in rotary mode. The initial point in time when the bit fails was found to be most often a singular event, after which ROP never recovered. Once damaged, subsequent catastrophic bit failure generally occurred within drilling 1-2 stands. The rapid bit failure observed was attributed to the increased thermal loads seen at the wear flat of the PDC cutter, which accelerate diamond degradation. The wear metric more accurately identifies the point in time (stand being drilled) of failure than the ROP value by itself. Review of post-run PDC photos show that the final recorded wear metric value can be related to the observed severity of the PDC damage. This information was used to determine a pull criterion to reduce pulling bits that are damaged beyond repair (DBR) and reduce time spent beyond the effective end of life. Pulling bits before DBR status is reached and replacing them increases overall drilling performance. The presented wear metric is simple and cost-effective to implement, which is important to lower-cost land wells, and requires only real-time surface sensor data. It enables a targeted approach to analyzing PDC bit wear, optimizing drilling performance and establishing effective bit pull criteria.
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Mensa-Wilmot, Graham, and David Truax. "Twin Edge Cutter (TEC) - Enhancing PDC Bit Development and Performance." In SPE/IADC Drilling Conference. Society of Petroleum Engineers, 1997. http://dx.doi.org/10.2118/37637-ms.

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Smith, John Rogers. "Addressing the Problem of PDC Bit Performance in Deep Shales." In IADC/SPE Asia Pacific Drilling Technology. Society of Petroleum Engineers, 1998. http://dx.doi.org/10.2118/47814-ms.

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Crane, Davon, Youhe Zhang, Charles Douglas, Huimin Song, Xiaoge Gan, Zhijun Lin, Levi Mueller, Greg Skoff, Jordan Self, and Bradley Krough. "Innovative PDC Cutter with Elongated Ridge Combines Shear and Crush Action to Improve PDC Bit Performance." In SPE Middle East Oil & Gas Show and Conference. Society of Petroleum Engineers, 2017. http://dx.doi.org/10.2118/183984-ms.

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Watson, G. R., N. A. Barton, and G. K. Hargrave. "Using New Computational Fluid Dynamics Techniques to Improve PDC Bit Performance." In SPE/IADC Drilling Conference. Society of Petroleum Engineers, 1997. http://dx.doi.org/10.2118/37580-ms.

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Sun, Mingguang, Yunlian Zhang, Yukun Yang, _. Huangtao, and Jinhai Zhao. "New Cutting Structure Design Improves the Performance of The PDC Bit." In SPE/AAPG Western Regional Meeting. Society of Petroleum Engineers, 2000. http://dx.doi.org/10.2118/62858-ms.

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Reports on the topic "PDC bit performance"

1

Glowka, D. A. Development of a method for predicting the performance and wear of PDC (polycrystalline diamond compact) drill bits. Office of Scientific and Technical Information (OSTI), September 1987. http://dx.doi.org/10.2172/5591640.

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Fahr, Sven, Daniel Tschopp, Jan Erik Nielsen, Korbinian Kramer, and Philip Ohnewein. Review of In Situ Test Methods for Solar Collectors and Solar Collector Arrays. IEA SHC Task 55, December 2020. http://dx.doi.org/10.18777/ieashc-task55-2020-0014.

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This fact sheet presents three in situ test methods for solar collectors and solar collector arrays, namely In situ Collector Certification (ICC), Performance Check for Collector Arrays (PC) and Dynamic Collector Array Test (D-CAT). A comparison is made regarding their scopes and use cases, methodologies and outcomes, which could serve as a decision-making aid for stakeholders in selecting the procedure that best suits their needs. The analysis shows that the methods do not contradict, but rather complement each other.
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Wei, Fulu, Ce Wang, Xiangxi Tian, Shuo Li, and Jie Shan. Investigation of Durability and Performance of High Friction Surface Treatment. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317281.

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The Indiana Department of Transportation (INDOT) completed a total of 25 high friction surface treatment (HFST) projects across the state in 2018. This research study attempted to investigate the durability and performance of HFST in terms of its HFST-pavement system integrity and surface friction performance. Laboratory tests were conducted to determine the physical and mechanical properties of epoxy-bauxite mortar. Field inspections were carried out to identify site conditions and common early HFST distresses. Cyclic loading test and finite element method (FEM) analysis were performed to evaluate the bonding strength between HFST and existing pavement, in particular chip seal with different pretreatments such as vacuum sweeping, shotblasting, and scarification milling. Both surface friction and texture tests were undertaken periodically (generally once every 6 months) to evaluate the surface friction performance of HFST. Crash records over a 5-year period, i.e., 3 years before installation and 2 years after installation, were examined to determine the safety performance of HFST, crash modification factor (CMF) in particular. It was found that HFST epoxy-bauxite mortar has a coefficient of thermal expansion (CTE) significantly higher than those of hot mix asphalt (HMA) mixtures and Portland cement concrete (PCC), and good cracking resistance. The most common early HFST distresses in Indiana are reflective cracking, surface wrinkling, aggregate loss, and delamination. Vacuum sweeping is the optimal method for pretreating existing pavements, chip seal in particular. Chip seal in good condition is structurally capable of providing a sound base for HFST. On two-lane highway curves, HFST is capable of reducing the total vehicle crash by 30%, injury crash by 50%, and wet weather crash by 44%, and providing a CMF of 0.584 in Indiana. Great variability may arise in the results of friction tests on horizontal curves by the use of locked wheel skid tester (LWST) due both to the nature of vehicle dynamics and to the operation of test vehicle. Texture testing, however, is capable of providing continuous texture measurements that can be used to calculate a texture height parameter, i.e., mean profile depth (MPD), not only for evaluating friction performance but also implementing quality control (QC) and quality assurance (QA) plans for HFST.
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NUMERICAL STUDY ON SHEAR BEHAVIOUR OF ENHANCED C-CHANNELS IN STEEL-UHPC-STEEL SANDWICH STRUCTURES. The Hong Kong Institute of Steel Construction, September 2021. http://dx.doi.org/10.18057/ijasc.2021.17.3.4.

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This paper firstly developed a three-dimensional (3D) finite element model (FEM) for enhanced C-channels (ECs) in steel-UHPC-steel sandwich structures (SUSSSs). The FEM was validated by 12 push-out tests on ECs with UHPC. With the validated FEM, this paper performed in-depth parametric studies on shear behaviours of ECs with ultra-high performance concrete (UHPC). These investigated parameters included bolt-hole gap (a), grade (M) and diameter (d) of bolt, core strength (fc), length of C-channel (Lc), and prestressing force ratio on bolt (ρ) in ECs. Under shear forces, the ECs in UHPC exhibited successive fractures of bolts and C-channels. Increasing the bolt-hole gap within 0-2 mm has no harm on the ultimate shear resistance, but greatly improves the slip capacity of ECs. Increasing grade and diameter of bolts improves the shear resistance and ductility of ECs through increasing the PB/PC (shear strength of bolt to that of C-channel) ratio. Increasing the core strength increased the shear resistance, but reduced the ductility of ECs due to the reduced PB/PC ratio. The ECs with Lc value of 50 mm offer the best ductility. Prestressing force acting on the bolts reduced the shear strength and ductility of ECs with UHPC. Analytical models were proposed to estimate the ultimate shear resistance and shear-slip behaviours of ECs with UHPC. The extensive validations of these models against 12 tests and 31 FEM analysis cases proved their reasonable evaluations on shear behaviours of ECs with UHPC.
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