Analysis of rock cutting process with a blunt PDC cutter under different wear flat inclination angles

Rostamsowlat, Iman; Akbari, Babak; Evans, Brian

doi:10.1016/j.petrol.2018.06.003

Cited by 53 publications

(10 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this stage, the incremental cutting response is governed by the pure cutting of the diamond particle. These findings from the impregnated diamond bit are consistent with those of other types of bits (Adachi, 1996;Dagrain, 2006;Detournay et al, 2008;Rostamsowlat et al, 2018).…”

Section: Discussionsupporting

confidence: 86%

“…The study's findings indicate that the confining pressure (P f ) has a significant impact on the cutting response of the impregnated diamond bit in both cutting and cutting and friction regimes, as illustrated in Figures 4, 5. The confining pressure can affect the elastic and elastoplastic regimes of frictional contact, depending on the two regimes of frictional contact (Rostamsowlat et al, 2018). Figure 6 depicts the torque force versus thrust force plots for sandstone, limestone, and granite.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

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.

View full text Add to dashboard Cite

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.

show abstract

Section: Discussionsupporting

confidence: 86%

Section: Discussionmentioning

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.

View full text Add to dashboard Cite

show abstract

“…The reaming cutting load and time length for reaming the four concrete samples were combined in Figure 8. d. As the rotation speed of the concrete sample was improved from 24rot/min to 36 rot/min, 48 rot/min and 60rot/min, the reaming cutting torque for single teeth row was reduced from about 20.5Nm to 13.3Nm, 11.3Nm and 9.6Nm as expected (Abugharara et al, 2019;Rostamsowlat et al, 2018), but the rate for torque decline became smaller. The time length for concrete sample reaming was also reduced from 4.1h to 3h, 2.3h and 1.6h, it was more efficient to ream the rock with higher rotations speed under the circumstances of device safety.…”

Section: Prototype and Indoor Experimentsmentioning

confidence: 77%

Research of a Lateral Reamer Bit for Digging Planting Hole in Rocky Abandoned Mine Area

Luo

Chen

2021

INMATEH

View full text Add to dashboard Cite

In the abandoned mine area with Karst landform in China, soils are few and thin but rocks are common, traditional planting hole diggers are unequal to work in rocks for vegetation restoration. A reamer bit with variable lateral drilling radius was designed based on the PDC (polycrystalline diamond compact) bit technology and metamorphic mechanism. Two lateral camber blades with PDC teeth were installed inside the bit body, a screw mechanism was employed as the actuation and a spatial double triangle mechanism was taken for the transmission. The curve of the camber blade was specially defined thus the reaming load was decentralized to 85.7% teeth on the blade. The kinematics of the lateral reamer bit was analysed, the mapping models from the actuation to the reaming radius and speed were established. Concrete samples were reamed indoors from 240mm to 407mm in diameter, the reaming cutting load and time length were measured and analysed. The lateral reamer bit was approved with the experiment results, this study provided equipment support for digging the planting hole in rocky abandoned mine areas and also expanded the PDC bit application.

show abstract

“…Modern day rock drill bits are equipped with steel cylinders containing cemented carbide or Polycrystalline Diamond Compacts (PDC) teeth or milled steel with tungsten carbide coating or button inserts (Rostamsowlat et al, 2018). Improvement in the drilling and cutting of rocks needs a better understanding of the breakage and disintegration of the polycrystalline materials.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation and numerical simulation of chip formation mechanisms in cutting rock-like materials

Aresh

Khan

Haider

2022

Journal of Petroleum Science and Engineering

View full text Add to dashboard Cite

Analysis of rock cutting process with a blunt PDC cutter under different wear flat inclination angles

Cited by 53 publications

References 36 publications

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

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

Research of a Lateral Reamer Bit for Digging Planting Hole in Rocky Abandoned Mine Area

Experimental investigation and numerical simulation of chip formation mechanisms in cutting rock-like materials

Contact Info

Product

Resources

About