Geometry and force modeling, and mechanical properties study of polycrystalline diamond compact bit under wearing condition based on numerical analysis

Huang, Zhiqiang; Ma, Yachao; Li, Qin; Xie, Dou

doi:10.1177/1687814017702080

Cited by 27 publications

(14 citation statements)

References 4 publications

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“…An algorithm ZPT 17 was created to solve the cutting parameters of the worn teeth, and ZPT makes it possible to calculate force status of wear PDC bit. Then, mechanical properties study 25 of wear PDC bit was analysed based on ZPT method. Cutter layout optimal design of a PDC bit with wear was carried out 18 to reduce the lateral force.…”

Section: Discussionmentioning

confidence: 99%

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Optimal design of a global force-balanced polycrystalline diamond compact bit considering wear condition

Lian

Huang

et al. 2019

Advances in Mechanical Engineering

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Polycrystalline diamond compact bits are one of the most widely used oil and gas drilling tools in the world. With wear, a large unbalanced lateral force and bending moment exist. These force and moment contribute not only to bit lateral vibration and whirl but also to wellbore tilt and enlargement, which will then cause early bit failure and low drilling efficiency. In this article, considering wear condition, a single cutter force model is proposed. Lateral force and bending moment models are constructed based on space-force theory. An optimal cutter layout model considering cutter wear is established. The matching approach for the optimal model is discussed based on Kriging surrogate model and genetic algorithm. Then, an optimization case is presented. The results show that the bit force models are in line with the actual drilling condition. The optimal approach is efficient. After optimization, the lateral force to weight on bit ratio is reduced by 10.99%, and the bending moment to torque on bit ratio is reduced by 30.43%. This result is a significant improvement in the force condition and stability of the polycrystalline diamond compact bit; ultimately, the whirl and tilt motion can be reduced, and the drilling efficiency can be improved.

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Section: Discussionmentioning

confidence: 99%

“…Set the variation range of parameters u c and a to (170-200) and (10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25), respectively. Then, OLH is used to generate the initial design points, which are uniformly distributed in the variables interval, as shown by the red points in Figure 12(a).…”

Section: Optimization Approachmentioning

confidence: 99%

Optimal design of a global force-balanced polycrystalline diamond compact bit considering wear condition

Lian

Huang

et al. 2019

Advances in Mechanical Engineering

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“…The force applied on PDC is transferred to all cutters, and the cutter breaking mechanism differs because of bit design and cutters location, therefore, the analyses of the forces on the single cutter as proposed in previous work done by Glowka (1985), Hibbs and Flom (1978) is not accurate. Huang et al (2017) added that the force conditions are more related to cutting arc length and wear degree. In this model, the drilling impedance (DRIMP) as a wear evaluation index will be used instead of using cutting forces.…”

Section: Computational Model Of Pdc Bit Lifementioning

confidence: 99%

Mathematical modelling of performance and wear prediction of PDC drill bits: Impact of bit profile, bit hydraulic, and rock strength

Mazen

Mujtaba

Hassanpour

et al. 2020

Journal of Petroleum Science and Engineering

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The estimation of Polycrystalline Diamond Compact (PDC) cutters wear has been an area of concern for the drilling industry for years now. The cutter's wear has been measured practically by pulling the bit out for evaluation at the surface. It is important to find the right time for tripping out as this helps to avoid the fishing job and reduces the operational cost significantly.The prediction of the drilling performance is based on the interaction of cutter and rock. Several authors focused on the cutter-rock interface but only a few researchers tried to model the wear of the PDC bit cutters. The aim of this research is to understand the relationships between the rate of penetration (ROP) and the drilling variables per each foot, and then determine the overall bit efficiency for the whole drilling operation. A new mathematical model is derived to predict the PDC bit performance by considering the factors that were already not taken into account.These factors include rock strength, bit design, and bit hydraulic. The model investigates the effect of these parameters to estimate the abrasive cutters wear on the inner and the outer bit cones by deriving modified equations to calculate the mechanical specific energy (MSE), torque, and depth of cut (DOC) as a function of effective blades (EB). The model is used to forecast the bit cutters wear conditions in four wells in the oil fields located in Libya, which were drilled with three different PDC's sizes. The model enables the results to be compared to the actual bit cutters wear measured for inner and outer cones. The results are found that are well in agreement with the actual field data obtained in bit records.

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“…It is distributed in Xinjiang, Inner Mongolia of China, and central Asia. Inspired by the shape of horn and transverse ridges structure on it, a bionic blade for the lateral PDC reamer bit was proposed obeying the basic PDC bit technology [ 14 ]. The bionic blade was evolved from the horn shape and redefined to obtain a variable reaming radius and also to improve the utilization rate of the teeth, thus decentralizing the reaming load to most teeth on the bit.…”

Section: Introductionmentioning

confidence: 99%

Geometric Evolvement, Simulation, and Test of a Bionic Lateral PDC Reamer Bit Inspired by Capra sibirica Horn

Chen

Yan

Zou

et al. 2022

Applied Bionics and Biomechanics

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PDC (polycrystalline diamond compact) bit is the key equipment for drilling holes inside the rock in oil and mining industry. Inspired by the shape and structure of Capra sibirica horn, a bionic lateral PDC reamer bit with variable lateral reaming radius was developed. Side view of Capra sibirica horn was employed for fitting the horn shape curve based on picture processing method. PDC teeth were arranged on the horn shape blade imitating the transverse ridges on the horn to cut the rock material, found with only 30% utilization rate of the total teeth and load concentration of the last tooth. A bionic blade curve evolved from the Capra sibirica horn was defined with geometric method for the lateral reamer bit; the utilization rate of the teeth on the bionic blade curve was improved to 90% with uniformly distributed reaming load. Multigroup simulations were conducted with the finite element method; the effects of bit revolution speed and rotation feed speed of the bionic blade to reaming load were emphatically studied. Concrete sample was reamed indoors from 240 mm to 407 mm in diameter, and the bionic lateral PDC reamer bit was approved by the test result.

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Geometry and force modeling, and mechanical properties study of polycrystalline diamond compact bit under wearing condition based on numerical analysis

Cited by 27 publications

References 4 publications

Optimal design of a global force-balanced polycrystalline diamond compact bit considering wear condition

Optimal design of a global force-balanced polycrystalline diamond compact bit considering wear condition

Mathematical modelling of performance and wear prediction of PDC drill bits: Impact of bit profile, bit hydraulic, and rock strength

Geometric Evolvement, Simulation, and Test of a Bionic Lateral PDC Reamer Bit Inspired by Capra sibirica Horn

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