Results 141 to 150 of about 431 (193)
Mathematical model of velocity and distribution law in gas lift reverse circulation well washing flow field for drilling shaft sinking. [PDF]
Sci RepGuo L +5 more
europepmc +1 more source
Microdevice for confinement of T-cells on functionalized bio-interfaces.
Lab ChipTrenzinger C +6 more
europepmc +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Comparative analysis cutting characteristics of stinger PDC cutter and conventional PDC cutter
Journal of Petroleum Science and Engineering, 2020Abstract The Stinger PDC cutter has a better performance than the conventional PDC cutter drilling for hard, interbedded and highly abrasive rocks. Although researchers have investigated the cutter's characteristic, such as impact resistance, wear resistance and cutter's life, the cutting behaviors of the Stinger PDC cutter still remains unclear.
Mao Sheng, Huai Zhong, Zhongwei Huang
exaly +2 more sources
The Analysis of Force on PDC Cutter
2014In order to study the influences of different factors (such as cutting area, contact arc length, back dim angle and drillability of rocks) on the force of PDC bit, cutting tests on different kinds of rocks were done with PDC cutters. Conclusions can be drawn from those tests that with the same cutting area, the force on PDC cutter changes linearly and ...
Erguo Liang +3 more
exaly +2 more sources
Review of PDC cutter – Rock interaction: Methods and physics
Geoenergy Science and Engineering, 2023Evren Ozbayoglu +2 more
exaly +2 more sources
Modeling of Cutting Rock: From PDC Cutter to PDC Bit—Modeling of PDC Cutter
SPE Journal, 2021Summary The main purpose of this paper is to present our polycrystalline diamond compact (PDC) cutter model and its verification. The PDC cutter model we developed is focused on a PDC cutter cutting a rock in 3D space. The model studies the forces between a cutter and a rock and applies the theory of poroelasticity to calculate the ...
Pengju Chen +3 more
openaire +1 more source
Rock Mechanics and Rock Engineering, 2021
The Stinger PDC cutter has superior impact resistance, wear resistance, and rock-breaking efficiency compared to the conventional PDC cutter. Thus, hybrid PDC bits that combine conventional and Stinger PDC cutters have significant advantages in drilling hard, interbedded, and highly abrasive rocks.
Chao Xiong +5 more
openaire +1 more source
The Stinger PDC cutter has superior impact resistance, wear resistance, and rock-breaking efficiency compared to the conventional PDC cutter. Thus, hybrid PDC bits that combine conventional and Stinger PDC cutters have significant advantages in drilling hard, interbedded, and highly abrasive rocks.
Chao Xiong +5 more
openaire +1 more source
Modeling of Cutting Rock: From PDC Cutter to PDC Bit—Modeling of PDC Bit
SPE Journal, 2021Summary In this paper, we integrated our polycrystalline diamond compact (PDC) cutter model (Chen et al. 2021) into a PDC bit model that can predict the weight on bit (WOB), torque on bit (TOB), and imbalanced side force on a bit under given drilling conditions.
Pengju Chen +3 more
openaire +1 more source
Effect of Cutter Shape on the Resistance of PDC Cutters Against Tip Impacts
SPE Journal, 2022Summary Under harsh downhole conditions, the quasibrittle characteristics of polycrystalline diamond compact (PDC) cutters are a serious drawback, which readily causes the cutters’ premature failure under impact loads. Innovating 3D cutter shapes is an effective solution for optimizing the cutter’s interaction with the rock and improving
Jiusen Wei, Wei Liu, Deli Gao
openaire +1 more source