Results 231 to 240 of about 41,999 (282)

Twist Compensation Reduces Trajectory Tortuosity and Improves ROP

IADC/SPE Drilling Conference and Exhibition, 2018
Abstract Twist compensation is a new, patent applied technique for improving the performance of conventional directional drilling assemblies. It is a feed-forward control technique where the reactive twist is used for controlling the angular position of the top drive thus minimizing undesired variations of the tool face.
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Adaptive PDC Drill Bit Reduces Stick-Slip and Improves ROP in the Midland Basin

IADC/SPE Drilling Conference and Exhibition, 2018
Abstract In-bit vibration sensors reveal that stick-slip and lateral dysfunction are the primary cause of poor polycrystalline diamond compact (PDC) bit performance in the 12 ¼ -in section of the Midland basin. Premature dulling as a result of vibrations leads to low penetration rates and failure to reach the targeted depth.
Anthony Phillips, David Gavia, Afton Noel, Michael Savage, Thomas Stefanik   +4 more
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Drilling with Induced Vibrations Improves ROP and Mitigates Stick/Slip in Vertical and Directional Wells

IADC/SPE Drilling Conference and Exhibition, 2014
Abstract For years drillers have been taught to mitigate all vibrations in the drillstring while drilling to maximize Rate of Penetration (ROP), limit bit damage, and extend bit life. While limiting lateral vibrations and stick/slip are proven ways to improve performance and maintain directional control, in recent years it has been ...
J. R. Clausen, A. E. Schen, I. Forster, J. Prill, R. Gee   +4 more
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A Proposal to Improve the SAE Standard and OECD Code 4 Standard Code for Testing ROPS

Transactions of the ASABE, 2011
The great increase in maximum laden mass and recent fatal accidents involving tractors having ROPS tested in accordance with a specific standard have led to the need to evaluate the validity of the current standards for testing ROPS. A ROPS able to meet the requirements of the current tests, but without a rollover safety margin, has been designed. This
null J. I. Arana, null J. R. Alfaro, null S. Arazuri, null J. L. Ponce de León, null C. Jarén   +4 more
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Research on the Prediction Method of ROP Based on Improved BP Neural Network

58th U.S. Rock Mechanics/Geomechanics Symposium
ABSTRACT: Accurate prediction of ROP is the premise and key to increase drilling speed. Artificial intelligence provides technical means for accurate ROP prediction. In this paper, the influence of borehole trajectory and drilling parameters on ROP is considered, and the prediction model of ROP is established by ...
Wengzhe Li, Lianbin Xia, Yueyao Luo, Yuechun Wang, Beiqiao Meng, Tianyi Tan, Lifan Luo   +6 more
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PREOPERATIVE ANATOMICAL FEATURES ASSOCIATED WITH IMPROVED SURGICAL OUTCOMES FOR STAGE 5 ROP.

2021
Purpose: To describe preoperative anatomical features of Stage 5 retinopathy of prematurity with results of surgery and patient-related and surgery-related factors affecting postoperative success. Methods: Forty eyes of 33 infants who underwent vitrectomy with lensectomy or lens-sparing vitrectomy for Stage 5 retinopathy of prematurity were enrolled ...
Ozdek, Sengul, Ozsaygili, Cemal, Yeter, Duygu Yalınbaş, Ozmen, MEHMET CÜNEYT, Atalay, HATİCE TUBA   +4 more
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Advanced Downhole Torsional Oscillation Control Tool Improved Dynamics and Field Average ROP

International Petroleum Technology Conference
Abstract The introduction of a novel torsional oscillation control technology, characterized by its high amplitude, extended attenuation length, and mode-coupled axial excitation, has been instrumental in enhancing drilling dynamics and augmenting the on-bottom drilling rate of penetration (ROP).
Ahmed Meshaal Al Rubaya, Alexey Alexeyenko, Ashraf Khateeb   +2 more
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An Improved Dynamic Optimization Control System for the Drilling Rate of Penetration (ROP) and Its Industrial Application

IEEE Transactions on Industrial Electronics, 2023
Chao Gan, Wei-Hua Cao, Lu-Zhao Wang, Kang-Zhi Liu 0001, Min Wu 0002   +4 more
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Utilization of an Improved Hardening Model for Finite Element Analysis and Experimental Correlation of a Tractor ROPS Structure

SAE Technical Paper Series
<div class="section abstract"><div class="htmlview paragraph">In recent years, virtual validation using finite element analysis (FEA) has become a key step in designing an agricultural tractor roll over protective structure (ROPS). With the advancement of computation power and ability of finite element solver to handle bigger models; a ...
Manoj Kumar Pandey, Arun Kumar, Dinesh Redkar, Vivekanndan Thirugnanam, G Magendran, SURESH MANI   +5 more
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Drilling Smarter, Not Harder: UCS-Informed MSE Management to Improve ROP and Avoid BHA Damage

IADC/SPE International Drilling Conference and Exhibition
Abstract Bit longevity, rate of penetration (ROP), and energy intensity are key cost drivers during well construction. Conventional drilling optimization often reacts to real-time mechanical specific energy (MSE) alone, adjusting weight-on-bit (WOB) and rotary speed (RPM) only after inefficiencies or bottom-hole assembly (BHA) damage ...
M. Elhusseiny, R. Al Jabery, B. Banihammad   +2 more
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