Laboratory Investigations for the Role of Flushing Media in Diamond Drilling of Marble

Bhatnagar, Anupam; Khandelwal, Manoj; Rao, K. U. M.

doi:10.1007/s00603-011-0144-7

Cited by 13 publications

(5 citation statements)

References 6 publications

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“…More recently, Watson et al (1991) reported that polyethylene oxide (PEO), a water-soluble non-ionic polymer could enhance drilling performance. This effect has been confirmed on different rocks such as Sioux quartzite Rao and Misra, 1998), Minnesota taconite and marble (Bhatnagar et al, 2011). Zhao and Gao (2013) discussed the effects of different inorganic salts on the ROP in rotary diamond drilling and the relevant mechanism.…”

Section: Introductionmentioning

confidence: 75%

Laboratory investigations on the effects of surfactants on rate of penetration in rotary diamond drilling

Zhao

et al. 2015

Journal of Petroleum Science and Engineering

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Section: Introductionmentioning

confidence: 75%

Laboratory investigations on the effects of surfactants on rate of penetration in rotary diamond drilling

Zhao

et al. 2015

Journal of Petroleum Science and Engineering

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“…It was reported that there was a substantial change of both parameters while the bit was progressing through the various layers of rocks that have different rock strength. During the drilling of marble, Bhatnagar et al [8] examined the effect of frequency of bit rotation on thrust and torque. From the test data, it was noticed that both thrust and torque would vary almost in the same way at different bit speed.…”

Section: Literature Reviewmentioning

confidence: 99%

Experimental investigation on potential use of drilling parameters to quantify rock strength

Lakshminarayana¹,

Tripathi²,

Pal

2021

Geo-Engineering

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The uniaxial compressive strength (UCS) represents the strength of the rock. It frequently requires during the introductory phase of mining projects such as tunneling, rock excavation, blast hole designs, etc. Usually, the determination of UCS of rocks is carrying out in a concerned laboratory. The main drawback of determining the UCS in a laboratory requires at least five core samples of high-grade quality. Many problems and limitations are associated with removing the core, and also preparing the test specimen for UCS is tedious, time-consuming, and expensive. Therefore an attempt is made to develop an efficient indirect method to estimate the UCS of rocks without using the core samples. In this experimental investigation, the drilling response, such as thrust, is gathered by drill tool dynamometer considering the different drill operating parameters. The prediction model is developed with a regression technique using the measured thrust and calculated torque. The prediction capacity and validation of the model are carried out using the standard procedure. The experimental results show that the model could explain the variance in UCS up to 93.60%. RMSE and MAPE values in terms of percentage are 3.49% and 11.27%, respectively. Besides, the model's validation is checked for sandstone and limestone having the UCS 28 MPa and 35 MPa, respectively, and yielded the best prediction results with an error of 8.51% and 8.01% suggesting that the developed model could predict the UCS of sedimentary rock types within acceptable error limit, and reasonably. The correlation of UCS of rocks and drilling specific energy is also tested and found that linear relationship between them with an R2 value of 92.10%.

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“…As summarized by Bhatnagar et al (2011) and also investigated by a number of researchers, drilling performances are compared on the basis of the penetration rate as well as the specific energy. Even the wear rate and cost per unit length of the hole drilled are some other factors which can be taken into consideration during the evaluation of drilling performance.…”

Section: The Specific Energy Of Drillingmentioning

confidence: 99%

Performance Evaluation of Button Bits in Coal Measure Rocks by Using Multiple Regression Analyses

2015

Rock Mech Rock Eng

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Electro-hydraulic and jumbo drills are commonly used for underground coal mines and tunnel drives for the purpose of blasthole drilling and rock bolt installations. Not only machine parameters but also environmental conditions have significant effects on drilling. This study characterizes the performance of button bits during blasthole drilling in coal measure rocks by using multiple regression analyses. The penetration rate of jumbo and electro-hydraulic drills was measured in the field by employing bits in different diameters and the specific energy of the drilling was calculated at various locations, including highway tunnels and underground roadways of coal mines. Large block samples were collected from each location at which in situ drilling measurements were performed. Then, the effects of rock properties and machine parameters on the drilling performance were examined. Multiple regression models were developed for the prediction of the specific energy of the drilling and the penetration rate. The results revealed that hole area, impact (blow) energy, blows per minute of the piston within the drill, and some rock properties, such as the uniaxial compressive strength (UCS) and the drilling rate index (DRI), influence the drill performance.

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Laboratory Investigations for the Role of Flushing Media in Diamond Drilling of Marble

Cited by 13 publications

References 6 publications

Laboratory investigations on the effects of surfactants on rate of penetration in rotary diamond drilling

Laboratory investigations on the effects of surfactants on rate of penetration in rotary diamond drilling

Experimental investigation on potential use of drilling parameters to quantify rock strength

Performance Evaluation of Button Bits in Coal Measure Rocks by Using Multiple Regression Analyses

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