Research Papers: Petroleum Engineering

Experimental Investigation of the Effect of Shale Anisotropy Orientation on the Main Drilling Parameters Influencing Oriented Drilling Performance in Shale

[+] Author and Article Information
A. N. Abugharara

Department of Process Engineering,
Faculty of Engineering and Applied Science,
Memorial University of Newfoundland,
St. John’s, NL, A1B3X5, Canada
email: a_nasar@mun.ca

Bashir Mohamed

Department of Process Engineering,
Faculty of Engineering and Applied Science,
Memorial University of Newfoundland,
St. John’s, NL, A1B3X5, Canada
e-mail: bsim26@mun.ca

C. Hurich

Faculty of Science—Earth Sciences,
Memorial University of Newfoundland,
St. John’s, NL, A1B3X5, Canada
email: churich@mun.ca

J. Molgaard

Department of Mechanical Engineering,
Faculty of Engineering and Applied Science,
Memorial University of Newfoundland,
St. John’s, NL, A1B3X5, Canada
e-mail: jmolgaard@mun.ca

S. D. Butt

Department of Process Engineering,
Faculty of Engineering and Applied Science,
Memorial University of Newfoundland,
St. John’s, NL, A1B3X5, Canada
e-mail: sdbutt@mun.ca

1Corresponding author.

Contributed by the Petroleum Division of ASME for publication in the Journal of Energy Resources Technology. Manuscript received May 26, 2018; final manuscript received April 7, 2019; published online April 22, 2019. Assoc. Editor: Fanhua Zeng.

J. Energy Resour. Technol 141(10), 102904 (Apr 22, 2019) (8 pages) Paper No: JERT-18-1381; doi: 10.1115/1.4043435 History: Received May 26, 2018; Accepted April 07, 2019

The influence of shale anisotropy and orientation on shale drilling performance was studied with an instrumented laboratory drilling rig with a 38.1-mm dual-cutter polycrystalline diamond compact (PDC) bit, operating at a nominally fixed rotational speed with a constant rate of flow of drilling fluid—water. However, the rate of rotation (rpm) was affected by the weight on bit (WOB), as was the torque (TRQ) produced. The WOB also affected the depth of cut (DOC). All these variables, WOB, rpm, TRQ, and DOC, were monitored dynamically, for example, rpm with a resolution of one-third of a revolution (samples at time intervals of 0.07 s.) The shale studied was from Newfoundland and was compared with similar tests on granite, also from a local site. Similar tests were also conducted on the concrete made with fine aggregate, used as “rock-like material” (RLM). The shale samples were embedded (laterally confined) in the concrete while drilled in directions perpendicular, parallel, and at 45 deg orientations to bedding planes. Cores were produced from all three materials in several directions for the determination of oriented physical properties derived from ultrasonic testing and oriented unconfined compressive strength (OUCS). In the case of shale, directions were set relative to the bedding. In this study, both primary (or compression) velocity Vp and shear ultrasonic velocity Vs were found to vary with orientation on the local shale samples cored parallel to bedding planes, while Vp and Vs varied, but only slightly, with orientation in tests on granite and RLM. The OUCS data for shale, published elsewhere, support the OUCS theory of this work. The OUCS is high perpendicular and parallel to shale bedding, and is low oblique to shale bedding. Correlations were found between the test parameters determined from the drilling tests on local shale. As expected, ROP, DOC, and TRQ increase with increasing WOB, while there are inverse relationships between ROP, DOC, and TRQ with rpm on the other hand. All these parameters vary with orientation to the bedding plane.

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McLamore, R. T., 1971, “The Role of Rock Strength Anisotropy in Natural Hole Deviation,” J. Petrol. Technol., 23(11), pp. 1315–1321. [CrossRef]
Gu, M., 2018, “Impact of Anisotropy Induced by Shale Lamination and Natural Fractures on Reservoir Development and Operational Designs,” SPE Reserv. Eval. Eng., 21(4), pp. 850–862. [CrossRef]
Callejo, A., Arbatani, S., Kövecses, J., Kalantari, M., and Marchand, N. R., 2017, “Drill Bit Contact Dynamics Including Side Cutting: Simulation and Validation,” ASME J. Energy Resour. Technol., 139(2), p. 022910. [CrossRef]
Schroeter, D. R., and Chan, H. W., 1989, “Successful Application of Drilling Technology Extends Directional Capability,” SPE Drill. Eng., 4(3), pp. 230–236. [CrossRef]
Bradley, W. B., Murphey, C. E., McLamore, R. T., and Dickson, L. L., 1976, “Advantages of Heavy Metal Collars in Directional Drilling and Deviation Control,” J. Petrol. Technol., 28(5), pp. 521–530. [CrossRef]
Osholake, T., Wang, J. Y., and Ertekin, T., 2013, “Factors Affecting Hydraulically Fractured Well Performance in the Marcellus Shale Gas Reservoirs,” ASME J. Energy Resour. Technol., 135(1), p. 013402. [CrossRef]
Cheatham, J. B., and Daniels, W. H., 1979, “A Study of Factors Influencing the Drillability of Shales: Single-Cutter Experiments With STRATAPAX (T) Drill Blanks,” ASME J. Energy Resour. Technol., 101(3), pp. 189–195. [CrossRef]
Wang, W., and Taleghani, A. D., 2014, “Simulating Multizone Fracturing in Vertical Wells,” ASME J. Energy Resour. Technol., 136(4), p. 042902. [CrossRef]
Zhou, D., Zheng, P., Peng, J., and He, P., 2015, “Induced Stress and Interaction of Fractures During Hydraulic Fracturing in Shale Formation,” ASME J. Energy Resour. Technol., 137(6), p. 062902. [CrossRef]
Ahn, C. H., Dilmore, R., and Wang, J. Y., 2017, “Modeling of Hydraulic Fracture Propagation in Shale gas Reservoirs: A Three-Dimensional, Two-Phase Model,” ASME J. Energy Resour. Technol., 139(1), p. 012903. [CrossRef]
Chen, X., Gao, D., Yang, J., Luo, M., Feng, Y., and Li, X., 2018, “A Comprehensive Wellbore Stability Model Considering Poroelastic and Thermal Effects for Inclined Wellbores in Deepwater Drilling,” ASME J. Energy Resour. Technol., 140(9), p. 092903. [CrossRef]
Xiao, Y., Hurich, C., and Butt, S. D., 2018, “Assessment of Rock-Bit Interaction and Drilling Performance Using Elastic Waves Propagated by the Drilling System,” Int. J. Rock Mech. Min. Sci., 105, pp. 11–21. [CrossRef]
Chang, C., Zoback, M. D., and Khaksar, A., 2006, “Empirical Relations Between Rock Strength and Physical Properties in Sedimentary Rocks,” J. Petrol. Sci. Eng., 51(3), pp. 223–237. [CrossRef]
Fjaer, E. and Nes, O. M., 2013, “Strength Anisotropy of Mancos Shale,” The 47th US Rock Mechanics/Geomechanics Symposium, American Rock Mechanics Association, San Francisco, CA, June 23–26, Paper No. ARMA 13-519.
Friedman, M., 1976, “Porosity, Permeability, and Rock Mechanics—A Review,” The 7th US Symposium on Rock Mechanics. American Rock Mechanics Association, Snowbird, UT, Aug. 25–27. Paper No. ARMA-76-0079.
Maurer, W. C., 1965, “Shear Failure of Rock Under Compression,” Soc. Petrol. Eng. J., 5(2), pp. 167–176. [CrossRef]
Abugharara, A. N., Alwaar, A. M., Butt, S. D., and Hurich, C. A., 2016, “Baseline Development of Rock Anisotropy Investigation Utilizing Empirical Relationships Between Oriented Physical and Mechanical Measurements and Drilling Performance,” The 35th International Conference on Ocean, Offshore and Arctic Engineering, Drilling Symposium, Busan, South Korea, June 19–24, Paper No. OMAE2016-55141.
Wang, J., Xie, L., Xie, H., Ren, L., He, B., Li, C., Yang, Z., and Gao, C., 2016, “Effect of Layer Orientation on Acoustic Emission Characteristics of Anisotropic Shale in Brazilian Tests,” J. Nat. Gas Sci. Eng., 36, pp. 1120–1129. [CrossRef]
Park, B., and Min, K., 2013, “Discrete Element Modelling of Transversely Isotropic Rock,” The 47th US Rock Mechanics/Geomechanics Symposium, American Rock Mechanics Association, San Francisco, CA, June 23–26, Paper No. ARMA-2013-490.
Vervoort, A., Min, K. B., Konietzky, H., Cho, J. W., Debecker, B., Dinh, Q. D., Frühwirt, T., and Tavallali, A., 2014, “Failure of Transversely Isotropic Rock Under Brazilian Test Conditions,” Int. J. Rock Mech. Min. Sci., 70, pp. 343–352. [CrossRef]
Holt, R. M., Nes, O.M., Stenebraten, J.F., and Fajaer, E., 2012, “Static Vs. Dynamic Behaviour of Shale,” The 46th US Rock Mechanics/Geomechanics Symposium, American Rock Mechanics Association, Chicago, IL, June 24–27, Paper No. ARMA-2012-542.
Li, H., Lai, B., Liu, H. H., Zhang, J., and Georgi, D., 2017, “Experimental Investigation on Brazilian Tensile Strength of Organic-Rich Gas Shale,” SPE J., 22(1), pp. 148–161. [CrossRef]
Simpson, N. D. J., Stroisz, A., Bauer, A., Vervoort, A., and Holt, R.M., 2014, “Failure Mechanics of Anisotropic Shale During Brazilian Tests,” The 48th US Rock Mechanics/Geomechanics Symposium, American Rock Mechanics Association, Minneapolis, MN, June 1–4, Paper No. ARMA-2014-7399.
Holt, R.M., Bauer, A., Fjaer, A., Stenebraten, J. F., Szewczyk, D., and Horsrud, P., 2015, “Relating Static and Dynamic Mechanical Anisotropies of Shale,” The 49th US Rock Mechanics/Geomechanics Symposium, Sanfrancisco, CA, June 28–July 1, Paper No. ARMA-2015-484.
Mehrgini, B., Memarian, H., Dusseault, M.B., Goodarzi, B., Eshraghi, H., Ghavidel, A., Hassanzade, M. and Niknejad, M., 2016, “Comparing Laboratory Hydraulic Fracturing and Brazilian Test Tensile Strengths,” The 50th US Rock Mechanics/Geomechanics Symposium. American Rock Mechanics Association, Houston, TX, June 26–29, Paper No. ARMA-2016-276.
Cui, Z., Liu, D.A., Tang, T. and Han, W., 2017, “Empirical Estimation of the Mode-I Fracture Toughness of Brittle Rocks Using Brazilian Tensile Strength,” The 51st US Rock Mechanics/Geomechanics Symposium. American Rock Mechanics Association, San Francisco, CA, June 25–28, Paper No. ARMA-2017-1017.
Nygaard, R., and Hareland, G., 2007, “Application of Rock Strength in Drilling Evaluation,” SPE Latin American and Caribbean Petroleum Engineering Conference, Buenos Aires, Argentina, Apr. 15–19, Paper No. SPE-106573-MS.
Kerkar, P. B., Hareland, G., Fonseca, E. R., and Hackbarth, C. J., 2014, “Estimation of Rock Compressive Strength Using Downhole Weight-on-Bit and Drilling Models,” International Petroleum Technology Conference, Doha, Qatar, Jan. 20–22, Paper No. IPTC-17447-MS.
Horsrud, P., 2001, “Estimating Mechanical Properties of Shale from Empirical Correlations,” SPE Drilling and Completion, Society of Petroleum Engineers.
Cho, J., Kim, H., Jeon, S., and Min, K., 2012, “Deformation and Strength Anisotropy of Asan, Gneiss, Boryeong Shale, and Yeoncheon Schist,” Int. J. Rock Mech. Min. Sci., 50, pp. 158–169. [CrossRef]
Altindag, R., 2012, “Correlation Between P-Wave Velocity and Some Mechanical Properties for Sedimentary Rocks,” J. South. Afr. Inst. Min. Metall., 112(3), pp. 229–237.
Mishra, D. A., and Basu, A., 2013, “Estimation of Uniaxial Compressive Strength of Rock Materials by Index Tests Using Regression Analysis and Fuzzy Inference System,” J. Eng. Geol., 160, pp. 54–68. [CrossRef]
Fear, M. J., 1999, “How to Improve Rate of Penetration in Field Operations,” SPE Drill. Completion, 14(1), pp. 42–49. [CrossRef]
Hamza, F., Chen, C., Gu, M., Quirein, J., Martysevich, V., and Matzar, L., 2018, “Characterization of Anisotropic Elastic Moduli and Stress for Unconventional Reservoirs Using Laboratory Static and Dynamic Geomechanical Data (Includes Associated Erratum).” SPE Reserv. Eval. Eng., 21(2), pp. 392–404. [CrossRef]


Grahic Jump Location
Fig. 1

(a) Procedure of shale-oriented physical measurement, (b) procedure of RLM and shale-oriented strength measurement, and (c) procedure of laboratory shale-oriented drilling representing various field scenarios

Grahic Jump Location
Fig. 2

Procedure of preparing oriented RLM samples for RLM-oriented physical and mechanical measurements

Grahic Jump Location
Fig. 3

(a) Diagram of anisotropic typical “U-Strength” curve and a developed 3-orientation “syncline-strength” curve, (b) literature data of shale OUCS following the 3-orientation “syncline-strength” curve, and (c) relationship between shale strength AVG of literature data in (b) and shale ROP-AVG of this work

Grahic Jump Location
Fig. 4

Circular wave measurements of (a) RLM, (b) granite, and (c and d) shale circular wave measurements in bar and polar data plots

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Fig. 5

Oriented shale ROP at various sets of WOB, (W1:79 kg, W3: 114 kg, W5: 131 kg, W7: 148 kg, W9: 165 kg)

Grahic Jump Location
Fig. 6

As a function of orientation at various sets of WOB with their average values: (a) ROP, (b) DOC, (c) rpm, and (d) torque

Grahic Jump Location
Fig. 7

(a)–(c) Average ROP with DOC, torque, and rpm of shale drilling as a function of shale bedding orientation, respectively. (d)–(f) Average ROP with DOC, torque, and rpm of RLM drilling as a function of RLM orientation, respectively



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