Relevant bibliographies by topics / Diamond impregnated bits

Academic literature on the topic 'Diamond impregnated bits'

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Published: 10 December 2022
Last updated: 29 January 2023

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Journal articles on the topic "Diamond impregnated bits"

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Gao, Chao, Jun Tang Yuan, Hao Jin, and Zhong Quan Song. "Wear Characteristics of Impregnated Diamond Bit in Drilling Armor Ceramic." Advanced Materials Research 179-180 (January 2011): 1150–55. http://dx.doi.org/10.4028/www.scientific.net/amr.179-180.1150.

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This paper describes the wear characteristics of impregnated diamond bits when drilling in Al2O3 armor ceramic. With different bits being developed, drilling experiments and scanning electron microscope (SEM) examinations were conducted, and the results show that diamond wear types consist of complete crystal shape, micro fragmentation, whole fragmentation, wearing flat and falling off of diamond; abrasive wear, impact abrasion and erosion exist in the wear of diamond and bond; diamond grain size and concentration have their optimal value under fixed machining conditions; diamonds of high quality could increase bit drilling efficiency and serving life; the bit whose abrasion rate of bond matches that of diamonds presents the best comprehensive properties.
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Mostofi, Masood, Thomas Richard, Luiz Franca, and Suchay Yalamanchi. "Wear response of impregnated diamond bits." Wear 410-411 (September 2018): 34–42. http://dx.doi.org/10.1016/j.wear.2018.04.010.

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Li, Zhan Tao, Yong Zheng Ma, and Ken-ichi Itakura. "Development of a Rotary Drilling Mechanism for Impregnated Diamond Bits." Advanced Materials Research 989-994 (July 2014): 3136–39. http://dx.doi.org/10.4028/www.scientific.net/amr.989-994.3136.

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Impregnated diamond core bits are often used in core drilling for geological surveys. A tri-state theory is proposed to describe the three states in drilling processes for a diamond particle or a bit. These states are contacting state, cutting state, and ploughing state. Furthermore, the relations among thrust and other mechanical parameters are also summarized. The optimal value of the specific energy is in the cutting state. Several experiment results verified the proposed model. This mechanism is useful for selecting operation parameters in core drilling using impregnated diamond core bits.
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Wang, Zhaozhi, Zhihui Zhang, Youhong Sun, Ke Gao, Yunhong Liang, Xiujuan Li, and Luquan Ren. "Wear behavior of bionic impregnated diamond bits." Tribology International 94 (February 2016): 217–22. http://dx.doi.org/10.1016/j.triboint.2015.08.039.

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Xuefeng, Tian, and Tian Shifeng. "The wear mechanisms of impregnated diamond bits." Wear 177, no. 1 (September 1994): 81–91. http://dx.doi.org/10.1016/0043-1648(94)90120-1.

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Li, Shi Bin, Qi Xiang, and Li Gang Zhang. "The Wear Mechanisms of Diamond Impregnated Bit Matrix." Applied Mechanics and Materials 441 (December 2013): 15–18. http://dx.doi.org/10.4028/www.scientific.net/amm.441.15.

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The diamond impregnated bit matrix should not only wrap the diamond up firmly; also constantly wear in the drilling process to ensure that the diamond can be made exposure constantly. The wear of diamond impregnated bit matrix is the key to affect the exposure of diamond blade.In this paper, based on the tribology, the wear mechanism of drill bits matrix is analysed from the microscopic view.Then,the relationship between matrix hardness and abrasion resistance can be obtained.
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RATOV, B. T., B. V. FEDOROV, A. E. KUTTYBAYEV, S. E. KOIBAKOVA, and A. R. BORASH. "SCIENTIFIC FOUNDATIONS OF THE CREATION OF DIAMOND DRILLING TOOLS OF THE RING TYPE." Neft i Gaz 130, no. 4 (August 15, 2022): 58–73. http://dx.doi.org/10.37878/2708-0080/2022-4.04.

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To solve the mentioned problem of accelerated commissioning of minerals occurring in hard rocks, studies have been carried out to formulate the following recommendations for the creation of high-performance diamond bits: - the crown matrix should contain several (five or more) impregnated diamond-bearing layers in height, separated by diamond-free layers of significantly lower hardness (for example, VK-20 hard alloy); - each diamond impregnated layer of the matrix must have a "comb" profile, representing annular wedge-shaped protrusions and depressions; - the impregnated diamond layers of the matrix during drilling should be equally loaded along the radius of the bit, which makes it possible to increase the wear resistance of the tool and reduce the number of rough diamonds for the manufacture of the latter; - to maintain the diameters of the well and the drilled core, the inner and outer side surfaces of the matrix must be equipped with wear-resistant diamond inserts (for example, from tvesala); - to produce a high-quality wear-resistant matrix, small amounts of various components should be added to the composition of the binder of the 94WC + Co + Cu type diamond grains. Recommendations 1-4 are embodied in the design of diamond impregnated crowns, for which the Republic of Kazakhstan has received patents. Crowns have been introduced into production with a significant effect. A diamond crown has been developed and patented, the impregnated layers placed in a matrix on a three-start helical surface with a slight pitch of 0.8 - 1.2 mm. It is expected that with this design, the pre-fracture zone will be involved in the bottom hole destruction process, which lies under the intrusion zone and represents a hard rock broken and weakened by cracks to a depth ten times greater than the intrusion depth of diamond grains. An experimental batch of multilayer crowns with an equally loaded comb profile and placement of impregnated layers on a three-start helical surface was made using software and CNC (numerical control) machines.
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Zhang, Xu Liang, You Hong Sun, Yuan Chun Liao, Wen Jiang, Jin Fan Li, and Qing Nan Meng. "Bending Strength and Cutting Performance of WB-Coated-Diamond/Fe-Ni Composites." Materials Science Forum 993 (May 2020): 1065–74. http://dx.doi.org/10.4028/www.scientific.net/msf.993.1065.

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Diamond particle with tungsten boride (WB) coating was synthesized by the molten salt method. Three different diamond/Fe-Ni composites made from pristine diamond, B4C coated diamond and WB coated diamond with Fe-Ni powders were prepared by powder metallurgy. The composition and microstructure of the tungsten boride coating were investigated. Both bending strength and cutting performance of the composites were investigated. Addition of the WB coating provided an increased bending strength (871.2 MPa) and relative density (93.54%), compared with the composites consist of uncoated diamond and Fe-Ni (746.8 MPa, 92.81%). Three different Fe-Ni-based impregnated diamond drill bits contained 20 vol.% pristine diamond, B4C coated diamond and WB coated diamond were manufactured by powder metallurgy, respectively. Drilling rate of bits was measured by XY-4 geological core drill on granite. The test results show that the drilling rate of bits with WB coated diamond (2.42 m/h) was 40% higher than that with pristine uncoated diamond (1.72 m/h).
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Abdel Moneim, M. Es, and S. Abdou. "Comments on the wear mechanisms of impregnated diamond bits." Wear 205, no. 1-2 (April 1997): 228–30. http://dx.doi.org/10.1016/s0043-1648(96)07325-5.

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Zhao, Hong Shan, and Kun Zhang. "Development and Application of a Cutting - Abrasive Impregnated Diamond Bit." Advanced Materials Research 900 (February 2014): 570–74. http://dx.doi.org/10.4028/www.scientific.net/amr.900.570.

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Igneous rocks of Junggar Basin are hard, strong abrasive and poor drillability. ROP is low in drilling these rocks, and drilling cycle is long, which seriously affect the process of exploration and development in the Carboniferous reservoir. Considering the igneous rock formation characteristics and the drilling problems, using PDC impregnated diamond high strength, super abrasion as the main rock breaking device, a new type of cutting and grinding of diamond impregnated bit was developed. This bit has the following characteristics: Compound cutting structure with blades and cylindrical Impregnated cutters; big nozzle in the center + deep radiation water slot hydraulic structures; Natural diamond and TSP lengthened gauge design; Selection of 40/50 mesh diamond grit, mix two kinds of inserts with diamond concentration 70%.The bit has the combination of impregnated bit and PDC drill bit technical advantages, which improve the bit adaptability to the formations. Hassan3 Carboniferous igneous formations field test shows that: average ROP is 0.71m / h, single bit footage is 86.5m, which increased by about 20% and 302% respectively compared with high efficient three-roller bits. The success usage of this bit in Hassan 3 provide an effective means for high quality fast drilling in Junggar Basin igneous rock formation.
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Dissertations / Theses on the topic "Diamond impregnated bits"

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Mostofi, Masood. "Drilling response of impregnated diamond bits: modelling and experimental investigations." Thesis, Curtin University, 2014. http://hdl.handle.net/20.500.11937/1297.

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The research aims to develop bit/rock interaction models for Impregnated Diamond (ID) bits. An experimental approach is used to study the dominant cutting and wear processes governing the bit/rock interface. The developed models are used to investigate the effects of the bit and rock properties as well as operating conditions on the drilling response. Furthermore, a field case study is performed, at which the drilling data is analysed using the framework of the model.
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Chan, Hing Hao. "A Method to Derive Rock Strength from the Drilling Response of Impregnated Diamond Bit." Thesis, Curtin University, 2022. http://hdl.handle.net/20.500.11937/88824.

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This research investigates the effect of rock strength on force responses associated with impregnated diamond drilling. The investigation involved coring activities ran on a well-engineered laboratory-scale drilling rig, drilling a collective amount of rock samples using industry graded bit. The experimentation came upon a particular rock-related parameter under the framework of a drilling model that demonstrates a robust linear relationship with rock strength. The investigation leads to estimate uniaxial compressive strength from drilling data.
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Xu, Jiayi. "Finite element analysis of impregnated diamond drilling bits." Thesis, 2016. http://hdl.handle.net/2440/119563.

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Diamond, including its synthesis, is a unique material not just because of its rarity and decorative features. Some of its physical properties are exceptional, which can not easily be matched by other materials. It is the hardest material, measured at 10 Mohs on the Mohs scale of mineral hardness. It has the highest thermal conductivity at room temperature, the highest bulk modulus and the highest tensile strength for cleavage. It has low coefficients of friction and thermal expansion, and is relatively inert to chemical attack by common acids and bases. Due to these exceptional properties, synthetic diamond as an abrasive has been used as an advanced engineering material, in making tools for grinding, cutting and drilling purposes. Synthetic diamond is commonly used in impregnated drills for cutting purposes. For bit design and manufacturing purposes, it is important to fully understand the complex interactions between rocks and diamond bits, as well as the mechanical behaviour of diamond particles within the impregnated bit during the drilling process. Major current issues of impregnated diamond tools include premature failure of diamonds, the ineffective wear rate of the matrix to continuously expose fresh diamonds and premature diamond fall out. Published researches to date include both experimental studies and numerical modellings for performance assessments and improvement. Some experimental studies have identified different failure mechanisms of the diamond particles and have studied the wear rate of the matrix under different drilling parameters, such as torque, reactive load and penetration rates. Others have tested suitable combinations of metals for the production of different matrix composites for different drilling purposes. It is well understood that in order to achieve optimal cutting efficiency during service, the matrix and diamond must wear simultaneously such that fresh diamonds will expose themselves after worn diamonds have fallen out of the matrix. It has been found that diamonds are mostly held by the matrix through mechanical interlocking, which in general has low interfacial bond strength. Some research have been conducted to investigate the effects of metal-coating diamonds in an attempt to provide sufficiently high bond strength between diamond particles and the matrix and at the same time to ensure the bonds are weak enough so that the self-dressing capability of the drill bits can be achieved. Numerical models have been used to investigate the effects of the variation of stresses at the interface under different wear conditions. The local plastic deformation and residual stresses due to the sintering process have also been studied through numerical simulations. In this research, the finite element method (FEM) is employed to investigate the interface failure mechanism of impregnated diamond bits, which is essentially an interface de-bonding process between diamond particles and the matrix, termed the diamond particle fallout. In particular, the cohesive zone modelling (CZM) technique is implemented to simulate the crack initiation and propagation along the interface. The extended finite element method (XFEM) is used to predict fractures in the matrix under certain loading conditions. The thesis is divided into five chapters, which are described briefly below: In Chapter 1, the general background together with the objectives and originality of the present research are introduced. In Chapter 2, a two-dimensional micromechanical finite element model of diamond impregnated bits suitable for the simulation of interfacial failure between diamond particles and the metal matrix are presented. The surface based cohesive zone model (CZM) is an advanced and efficient technique that is able to adequately simulate and predict fracture initiation and propagation of an uncracked interface between two adhesive surfaces. Two numerical examples have been developed to validate the accuracy and adequacy of the presented model. The effects of different modelling parameters on the diamond particle retention capacity have also been thoroughly studied and compared in order to have a better understanding of the failure mechanism. Chapter 3 describes the extension of the two-dimensional FE model to three dimensional analysis. Similar to two-dimensional models, a model representing a single diamond particle partially embedded inside the matrix has been developed. A three-dimensional double cantilever beam (DCB) testing model has been created to simulate the crack propagation along the interface, and its results have been compared with the experimental results to validate the precision of the model. The effects of diamond particle shape, orientation, and protrusion, as well as interface properties on the diamond’s retention ability, have also been studied. Chapter 4 presents an efficient two-dimensional FE model incorporating both the cohesive zone method (CZM) and the extended finite element method (XFEM) for the prediction of de-bonding along interfaces and micro-cracking in the matrix. The effects of interface property, as well as the particle shape on failure modes, have also been investigated. Finally, the conclusions of the present research are summarised in Chapter 5. The limitations of the present study and further research recommendations are also described in this chapter.
Thesis (Ph.D.) (Research by Publication) -- University of Adelaide, School of Civil, Environmental and Mining Engineering, 2016.
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Perez, Ospina Santiago. "Acoustic analysis of rock cutting process for impregnated diamond drilling." Thesis, 2016. http://hdl.handle.net/2440/113357.

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The rock cutting industry has experienced important changes with the introduction of diamond-based drilling tools in the last few decades. Impregnated diamond (ID) bits are part of that introduction and their main use is to drill hard and abrasive rock formations. ID core drilling has emerged as the most commonly used technology employed in the advanced stages of mineral exploration. Through this technology, existing resources - mineral and energy - are expanded and greenfield exploration is carried out. As near-surface deposits are depleted, there is a global trend towards targeting deeper for exploration. Currently, in near-surface drilling, bit wear condition is determined by the experience of drilling operators –trial and error–. Although it makes the evaluation very subjective and prone to errors, it is an accepted practice. Conversely, in deep drilling, direct assessment of the bit wear condition is difficult and time consuming. Therefore, alternative techniques must be developed in order to evaluate, in real time, the wear condition of the bit and properties of the drilling medium. In this thesis, Acoustic Emission (AE) along with Measuring While Drilling (MWD) parameters are considered as an alternative technique to remotely monitor the ID bit wear condition (sharp and blunt) and rock properties (abrasivity). A series of rigorous and specialized drilling and abrasivity tests are utilised to generate the acoustic signatures with (topologically variant) and without (topologically invariant) changes in the topology of the tool cutting face. Main findings of this work are as follows: firstly, based on the step test results, linear relationships were developed that make it possible to estimate the depth of cut, weight on the bit (WOB) and torque on the bit (TOB) by simply using the time domain parameters of the AE signals. Wear tests also showed that AE amplitudes start to trend down as wear begins to accelerate. Secondly, acceptable pattern recognition rates are obtained for the majority of tool condition monitoring systems developed for predicting sharpness or bluntness of ID bits. In particular, the system composed by AErms [rms subscript] and TOB excels due to the high classification performance rates and the fewer input variables compared to other tool condition monitoring systems. Lastly, AE parameters, such as total number of events and root mean square of AE, in addition to testing parameters are found to accurately predict rock abrasivity measured via Cerchar Abrasivity Index (CAI). The importance of this index lies on: (i) the fact that ID drilling is commonly used in abrasive rock formations, and (ii) the way CAI has been defined (length of wear flat exerted on a steel pin after being scratched on one centimetre of rock surface), which intrinsically relates it to wear condition of the tool. The insights presented in this thesis open up a new promising field of study, impregnated diamond drilling using AE as an indirect technique to evaluate tool condition.
Thesis (Ph.D.) (Research by Publication) -- University of Adelaide, School of Civil, Environmental and Mining Engineering, 2016.
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Book chapters on the topic "Diamond impregnated bits"

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Liu, Baochang, Shujing Wang, Shengli Ji, Zhe Han, Xinzhe Zhao, and Siqi Li. "Simulation and Experimental Research on Flow Field and Temperature Field of Diamond Impregnated Drill Bit." In Advances in Heat Transfer and Thermal Engineering, 733–38. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4765-6_127.

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Conference papers on the topic "Diamond impregnated bits"

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Maouche, Z., F. Al-Rawahi, I. Agapie, M. Parasher, and Talal Al Nahwi. "New PDC Bit Technology Sets the Standards in Drilling Hard and Abrasive Formations in Oman - Case Study." In IADC/SPE Asia Pacific Drilling Technology Conference. SPE, 2014. http://dx.doi.org/10.2118/spe-170462-ms.

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Abstract Historically, the hardest and most abrasive rock formations in Oman have been drilled using either diamond-protected, roller-cone insert bits or impregnated bits in combination with high-speed drives. Polycrystalline diamond compact (PDC) bits have been successfuly used to drill soft and non-abrasive formations to depths of approximately 2, 500 m. Within this region, all previous attempts to drill deeper into the hard and abrasive intervals have resulted in rapid bit wear, poor rate of penetration (ROP), and repetitive trips for bit change. A new PDC cutter technology combined with a novel multi-level cutting structure force balancing has extended the PDC bit footprint, setting new records for drilling the longest intervals of hard and abrasive sandstone formation in Oman. This new technology is the result of a program committed to two years of research, which focused on the improvement of PDC cutter wear and impact resistance, as well as addressing bit vibration and wear distribution issues. As a result, Halliburton DBS PDC bits have become the standard for drilling hard and abrasive rock in the Middle East, providing significant improvement with respect to distances drilled and ROP. In rotary mode, or in combination with low-cost drives, this new technology has drastically reduced the operational cost per foot drilled in Oman.
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Perez, S., M. Karakus, and F. Pellet. "A study on the wear process of impregnated diamond bits via acoustic emission." In The 2016 Isrm International Symposium, Eurock 2016. Taylor & Francis Group, 6000 Broken Sound Parkway NW, Suite 300, Boca Raton, FL 33487-2742: CRC Press, 2016. http://dx.doi.org/10.1201/9781315388502-57.

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Abugharara, Abdelsalam N., John Molgaard, Charles A. Hurich, and Stephen D. Butt. "Study of the Influence of Controlled Axial Oscillations of pVARD on Generating Downhole Dynamic WOB and Improving Coring and Drilling Performance in Shale." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-96189.

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Abstract This work concentrates on the investigation of enhancing drilling performance through increasing drilling rate of penetration (ROP) by using a passive vibration assisted rotary drilling (pVARD) tool. It also involves analysis of how ROP was significantly increased when drilling using pVARD compared to drilling using conventional system “rigid” using coring and drilling in shale rocks. The apparatus used was a fully instrument laboratory scale rig and the bits were dual-cutter polycrystalline diamond compact (PDC) bit for drilling and diamond impregnated coring bit for coring. The flow rate was constant of (7 litter / min) using clean water at atmospheric pressure. In addition, for accuracy data recording, a data acquisition system (DAQ-Sys) using a LabVIEW software was utilized to record data at 1000HZ sampling rate. The output drilling parameters involved in the analysis included operational rpm, torque (TRQ), and ROP. All the output-drilling parameters were analyzed with relation to downhole dynamic weight on bit (DDWOB). The result of this work explained how pVARD can increase the DDWOB and improve ROP. The result also demonstrated generating a balanced and concentric increase in DDWOB and minimizing the wide-range fluctuation of DDWOB generated in rigid drilling, particularly at high DDWOB.
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Chao, Gao, Yuan Juntang, Song Zhongquan, Jin Hao, and Zheng Lei. "Wear of Diamond-impregnated Bit in Drilling Engineering Ceramic." In 2011 International Conference on Measuring Technology and Mechatronics Automation (ICMTMA). IEEE, 2011. http://dx.doi.org/10.1109/icmtma.2011.854.

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Wang, Chong, Linhong Xu, and Jinfeng Zhen. "Evaluation of Impregnated Diamond Bit based on Image Processing Technology." In 2018 International Conference on Computer Modeling, Simulation and Algorithm (CMSA 2018). Paris, France: Atlantis Press, 2018. http://dx.doi.org/10.2991/cmsa-18.2018.82.

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Abugharara, Abdelsalam N., John Molgaard, Charles A. Hurich, and Stephen D. Butt. "Study of the Relationship Between Oriented Downhole Dynamic Weight on Bit and Drilling Parameters in Coring Isotropic Natural and Synthetic Rocks." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-96176.

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Abstract Coring natural rocks (granite) and synthetic rocks (rock like material, RLM) using diamond impregnated coring bit was performed by A rigid coring system. RLM and granite were previously tested to be isotropic rocks by the author [1, 2, 3, 4] A baseline procedure was developed for isotropic rock characterization [2] and this work is to contribute to the developed baseline procedure by considering downhole dynamic weight on bit (DDWOB). The drilling parameters involved in the analysis included rate of penetration (ROP) depth of cut (DOC), rpm, and torque. All parameters were studied as a function of DDWOB at 300 and 600 input rpm. A fully instrumented laboratory scale rotary drilling rig was used with 5 liter/minute water flow rate. Samples were first cored in 47.6 mm diameter in the desired orientations. Samples of granite were cored in two perpendicular directions (vertical and horizontal) and samples of RLM were cored in three directions including vertical, oblique, and horizontal. The coring experiments were performed using 25.4 mm diamond impregnated coring bit. At each input rpm and at each applied static weight, multiple coring runs were repeated and then averaged; therefore, each point of the displayed data was averaged of at least three repeated experiments at the same inputs. DDWOB was recorded by a load cell fixed beneath the sample holder and connected to a Data Acquisition System that records at 1000 HZ sampling rate. Several sensors were used to record the required data, including operational rotary speed, advancement of drill bit for ROP calculation, and motor current for torque measurement. Results showed similar trends in different orientations at the same inputs demonstrating RLM and granite isotropy. The results also showed the influence of DDWOB on ROP, DOC, rpm, and torque (TRQ) expanding the baseline procedure through considering DDWOB for isotropic rock characterization.
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Zhao, Lei, and Jie Yang. "Research on the measurement method of protrusion of impregnated diamond bit crown." In 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering (CMCE 2010). IEEE, 2010. http://dx.doi.org/10.1109/cmce.2010.5609706.

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Fierro, M., N. Atencio, R. Solano, R. Varela, F. Iturrizaga, L. Toribio, A. Tufano, and F. Guzman. "Finding the Breakeven Point of Diamond Impregnated Bit Wear in Turbodrill Applications." In OTC Brasil. Offshore Technology Conference, 2015. http://dx.doi.org/10.4043/26302-ms.

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Yang, Daohe, Longchen Duan, Junping Li, TaiNing Yan, Xiaosong Chen, and Hongbo Wang. "Performance Compared Research of 75 Diameter Impregnated Diamond Core Bit between Chinese and Foreign." In International Conference on Pipelines and Trenchless Technology 2011. Reston, VA: American Society of Civil Engineers, 2011. http://dx.doi.org/10.1061/41202(423)172.

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Murillo, R., F. G. Guzman Rangel, E. Melo, O. Luna Gonzalez, D. A. Romero, and D. Beltran. "Turbodrilling System and Diamond-Impregnated Bit Saved Three Trips in a Hard Carbonate Reservoir." In SPE Latin America and Caribbean Mature Fields Symposium. Society of Petroleum Engineers, 2017. http://dx.doi.org/10.2118/184924-ms.

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