A Drilling Rate Model for Roller Cone Bits and Its Application

Hareland, Geir; Wu, Andrew; Rashidi, B.

doi:10.2118/129592-ms

Cited by 24 publications

(7 citation statements)

References 3 publications

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“…where h f is the fractional dullness of the bit tooth. On the other side, the general relationship for bit-bearing life was expressed as: (26) where T ( • F) is the temperature of the bottom-hole setting and h t (Btu/ • F) is the coefficient of heat transfer.…”

Section: Review On Empirical Rop Modelsmentioning

confidence: 99%

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A Survey on the Shortcomings of the Current Rate of Penetration Predictive Models in Petroleum Engineering

Khalilidermani

Knez

2023

Energies

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In drilling engineering, the rate of penetration (ROP) is a prevalent indicator to evaluate the energy efficiency of drilling operations. Nowadays, ROP prediction has become more critical since the production from deeper hydrocarbon resources is unprecedentedly escalating. So far, a wealth of theoretical and practical investigations has been conducted to develop ROP models; however, the existing models have not been adequately updated with the new technological advancements or geological restrictions. This research strives to integrate the latest advancements, restrictions, and future requirements in ROP prediction. To do this, the existing empirical and data-driven ROP models are elaborated and compared. From the conducted research, it was deduced that four uncontrollable factors, including the rock permeability, wellbore inclination, temperature, and rock hardness, have not been adequately considered in ROP models. Moreover, although data-driven ROP models deliver more accurate results than the empirical models, the determination of the number and type of the input parameters is still challenging. To tackle this issue, it is recommended to develop a formation-based classification system of input parameters for future investigations. This inclusive review can be adopted by the companies and engineers involved in drilling operations to update and reform their drilling strategies.

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Section: Review On Empirical Rop Modelsmentioning

confidence: 99%

“…In better words, mud properties, e.g., density and viscosity, and the effect of jet impact force were incorporated in ROP modeling. Improvement and development of empirical ROP models was then followed by several researchers [22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

A Survey on the Shortcomings of the Current Rate of Penetration Predictive Models in Petroleum Engineering

Khalilidermani

Knez

2023

Energies

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“…A numerical model is presented in his study to optimise drilling performance. The penetration rate is the bit performance index, which plays an essential role in drilling operations and predicts the impact of rock formations' strength on drill bits 3 . The Rate of Penetration (ROP) is altered by variables like Weight on Bit (WOB), rotational speed, bit wear, concluded that the drill bit performance is related to drilling parameters, bit life and ROP.…”

Section: Introductionmentioning

confidence: 99%

A Review on Tool Life in Coal Measures Rocks

Prakash

2024

jmmf

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Tungsten carbide inserts in rock drill bits are predominantly used in drilling rocks, particularly in mining industries. The research studies performed on drill bits have been limited to several factors such as collecting failure data of bit components from the field, conducting wear tests considering rock properties, and introducing new coated insert materials. The role of Artificial Intelligence (AI) and Machine Learning (ML) for the betterment of tool wear with real-time data is limited. The present study has offered an evaluative perspective of an essential industrial issue. In this review, a concept map presents a visual organization and representation of knowledge obtained during the study. Utilizing the propositions from the concept map, a brief review of the integrated concepts of researchers relating drill bits, failure data, numerical and statistical models, wear analysis, reliability assessment, and prerequisites in developing new materials have been discussed in the backdrop of the present study.

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“…Moreover, it is applied as a quasi-nondestructive field method and easily facilitated because of non-sampling and simple movement (Kalantari et al, 2018). Researchers have developed several methods for estimating rock strength based on forces limit equilibrium and energy equilibrium (Merchant, 1945;Evans, 1962;Nishimatsu, 1972;Roxborough and Philips, 1975;Nakajima and Kinoshita, 1979;Hoover and Middleton, 1981;Detournay and Defourny, 1992;Wojtanowicz and Kuru, 1993;Gerbaud et al, 2006;Franca, 2010;Hareland, 2010;Chiaia et al, 2013). However, except for Nakajima and Kinoshita's model and Gerbaud' model, the crushed zone has not been considered in the proposed relations between the drilling data and rock strength.…”

Section: Introductionmentioning

confidence: 99%

Estimation of mechanics parameters of rock in consideration of confining pressure using monitoring while drilling data

Zhang¹,

Zhao²,

Xiao³

et al. 2023

Front. Earth Sci.

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During the drilling process, high-strength rock can lead to various issues such as drilling suppression, bit wear, and increased operational costs. To ensure safe and efficient drilling operations, it is crucial to accurately predict the strength parameters of the rock and recommend modifications to operational procedures. This paper proposes a low-cost and fast measurement method for predicting the strength parameters of rock in the field. To evaluate the effectiveness of this method, a drilling process monitoring experiment was conducted on sandstone, limestone, and granite. The experiment studied the effect of confining pressure on the response of cutting with an impregnated diamond bit. By analyzing the relationship between the thrust force, torque force, and penetration depth under different confining pressures, the researchers developed an analytical model for drilling that considers confining pressure, compressed crushed zone, and bit geometry. The results show that the confining pressure has a significant effect on the cutting response. As the confining pressure increases, the thrust force, torque force, and penetration depth at the cutting point also increase. Furthermore, a new measurement method was proposed to determine the strength parameters, such as cohesion, internal friction angle, and unconfined compressive strength. The estimated strength parameters for the three rock types using the drilling method were in good agreement with those of the standard laboratory test, with an error range of 10%. This method of estimating rock strength parameters is a practical tool for engineers. It can continuously and quickly obtain the drilling parameters of in-situ rocks.

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A Drilling Rate Model for Roller Cone Bits and Its Application

Cited by 24 publications

References 3 publications

A Survey on the Shortcomings of the Current Rate of Penetration Predictive Models in Petroleum Engineering

A Survey on the Shortcomings of the Current Rate of Penetration Predictive Models in Petroleum Engineering

A Review on Tool Life in Coal Measures Rocks

Estimation of mechanics parameters of rock in consideration of confining pressure using monitoring while drilling data

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