| Investigation into strengthening methods for stabilizing wellbores in fractured formations H Soroush, JHB Sampaio SPE Annual Technical Conference and Exhibition?, SPE-101802-MS, 2006 | 65 | 2006 |
| Using artificial neural networks to estimate the z-factor for natural hydrocarbon gases M Kamyab, JHB Sampaio Jr, F Qanbari, AW Eustes III Journal of Petroleum Science and Engineering 73 (3-4), 248-257, 2010 | 59 | 2010 |
| Development of artificial neural networks to predict differential pipe sticking in iranian offshore oil fields R Miri, J Sampaio, M Afshar, A Lourenco SPE International Oil Conference and Exhibition in Mexico, SPE-108500-MS, 2007 | 59 | 2007 |
| A mathematical model and analytical solution for buckling of inclined beam-columns JHB Sampaio Jr, JR Hundhausen Applied Mathematical Modelling 22 (6), 405-421, 1998 | 51 | 1998 |
| A causation investigation for observed casing failures occurring during fracturing operations NJ Adams, RF Mitchell, AW Eustes, JH Sampaio, AO Antonio SPE hydraulic fracturing technology conference and exhibition, D021S005R004, 2017 | 41 | 2017 |
| Designing three-dimensional directional well trajectories using Bézier curves JHB Sampaio Jr Journal of Energy Resources Technology 139 (3), 032901, 2017 | 35 | 2017 |
| Planning 3D well trajectories using spline-in-tension functions JHB Sampaio Jr | 18 | 2007 |
| Planning 3D well trajectories using cubic functions JHB Sampaio Jr | 17 | 2006 |
| Field Verification of Lead Angle and Azimuth Rate of Change Predictions in Directional Wells Using a New Mathematical Model EE Maidla, JHB Sampaio Jr SPE Eastern Regional Meeting, SPE-19337-MS, 1989 | 16 | 1989 |
| Using radio frequency identification electronic chips to effectively control the elements of the drillstring JHB Sampaio Jr, JCR Placido, SN Ferreira SPE Annual Technical Conference and Exhibition?, SPE-49203-MS, 1998 | 10 | 1998 |
| An iterative procedure for perpendicular offsets linear least squares fitting with extension to multiple linear regression JHB Sampaio Jr Applied mathematics and computation 176 (1), 91-98, 2006 | 7 | 2006 |
| Performance Evaluation of a Hydraulic Turbine Used As a Turbodrill for Oil and Gas Applications in Post-Salt Environment VG Monteiro, JT Tomita, C Bringhenti, A Vastenavond, JHB Sampaio Jr Turbo Expo: Power for Land, Sea, and Air 50961, V009T27A012, 2017 | 5 | 2017 |
| Drilling engineering JHB Sampaio Curtin University of Technology, Department of Petroleum Engineering, 2008 | 5 | 2008 |
| Mathematical model for mechanical buckling of drillstrings within curved bore-holes, A JHB Sampaio 1990-1999-Mines Theses & Dissertations, 1996 | 5 | 1996 |
| Drilling waste management: Improvements to the dewatering process through chemical optimisation—results of a pilot test MK Mohammadi, F Almassi, JHB Sampaio, K Tahmasbi SPE/IADC Indian Drilling Technology Conference and Exhibition, SPE-103993-MS, 2006 | 3 | 2006 |
| Selecting the Best 3D Wellbore Trajectory Using a Fast Stiff Semi-Analytical 3D Torque and Drag Simulator JHB Sampaio Jr, AK Mansour International Conference on Offshore Mechanics and Arctic Engineering 58875 …, 2019 | 2 | 2019 |
| A Hybrid Model for Predicting the Likelihood of Differential Sticking in Offshore Wells JHB Sampaio, A Lourenco Offshore Technology Conference Brasil, OTC-24462-MS, 2013 | 2 | 2013 |
| Radio-frequency-identification chips for drillstring elements JHB SAMPAIO JR, JCR PLACIDO, SN FERREIRA Journal of petroleum technology 50 (10), 47-48, 1998 | 2 | 1998 |
| The buckling of drillstrings in curved sections of boreholes JHB Sampaio Jr | 2 | 1998 |
| An Active Return Flowline Sensor for Onshore Drilling Rigs PM Lambie, JH Sampaio SPE/IADC Drilling Conference and Exhibition, D022S023R001, 2019 | 1 | 2019 |
