Results 141 to 150 of about 4,548 (230)
Petroleum Science, 2021 Practice has proved that drag reduction oscillator can decrease axial friction and increase wellbore extension effectively in sliding drilling operations. However, the complicated mechanical behavior of drillstring with drag reduction oscillators has not
Wen-Jun Huang, De-Li Gao
exaly +2 more sources
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Drillstring Identification to Reduce Drillstring Failures
IADC/SPE Drilling Conference, 1988Abstract A novel system has been developed, which reduces the number of drillstring failures by enabling the accumulated fatigue load of each individual drillstring component to be recorded. A prototype is currently undergoing field tests. Labels incorporated in drillpipes are used to identify the components.
G.D. Twilhaar, J.H.L. Esch
openaire +1 more source
Day 1 Tue, March 07, 2023, 2023
Drilling is an essential operation for subsurface hydrocarbon/geothermal energy extraction or underground waste fluid/gas storage. Efficient drilling is the key to an economically viable operation.
Yifan Zhang +3 more
semanticscholar +1 more source
Drilling is an essential operation for subsurface hydrocarbon/geothermal energy extraction or underground waste fluid/gas storage. Efficient drilling is the key to an economically viable operation.
Yifan Zhang +3 more
semanticscholar +1 more source
Journal of Process Control, 2023
The early warning of drilling faults is of paramount importance to prevent or reduce environmental and property damages. In view of the complex drillstring kinematic characteristics and changeable formation environment, this paper proposes a new fault ...
Yupeng Li +4 more
semanticscholar +1 more source
The early warning of drilling faults is of paramount importance to prevent or reduce environmental and property damages. In view of the complex drillstring kinematic characteristics and changeable formation environment, this paper proposes a new fault ...
Yupeng Li +4 more
semanticscholar +1 more source
24th International Conference on Offshore Mechanics and Arctic Engineering: Volume 1, Parts A and B, 2005
In this paper we show how a drillstring can be modeled in terms of limited numbers of masses and springs for the purpose of building a test rig. The model should represent the drillstring dynamics to a reasonable degree of accuracy. We will use the real component of the Frequency Response Function and the stability diagram as measures of dynamic ...
M. A. Elsayed, Chin Chin Phung
openaire +1 more source
In this paper we show how a drillstring can be modeled in terms of limited numbers of masses and springs for the purpose of building a test rig. The model should represent the drillstring dynamics to a reasonable degree of accuracy. We will use the real component of the Frequency Response Function and the stability diagram as measures of dynamic ...
M. A. Elsayed, Chin Chin Phung
openaire +1 more source
Measurement and simulation of nonlinear drillstring stick–slip and whirling vibrations
International Journal of Non-Linear Mechanics, 2020When drilling ultra-deep wells with polycrystalline diamond compact (PDC) bits, the drillstring suffered from severe vibrations that were responsible for the premature failure of drillstring components and the inefficient drilling process. In this paper,
Qinfeng Di, Wenchang Wang
exaly +2 more sources
Stress Analysis of Drillstrings
University of Tulsa Centennial Petroleum Engineering Symposium, 1994Abstract Drillstring stress analysis techniques are reviewed with emphasis on the use of torque-drag formulations. Some of the many modifications to torque-drag calculations are reviewed and discussed. The limitations of current results in drillstring dynamics for use in stress analysis calculations are also discussed.
Robert F. Mitchell +2 more
openaire +2 more sources
Analysis of Drillstring Failures
SPE/IADC Drilling Conference, 1995Abstract The drilling industry is currently exploring various ways of reducing drilling costs through a multitude of initiatives; for example C.R.I.N.E. (Cost Reduction In the New Era). One of the major areas where there is potential for cost reduction is downtime due to hole problems and drillstring failures.
David David, Hussain Hussain
openaire +1 more source
Drillstring Network 2.0: An Enhanced Drillstring Network Based on 100 Wells of Experience
SPE Annual Technical Conference and Exhibition, 2014Abstract Wired drill pipe (WDP) has been used in more than 100 wells worldwide to create a drillstring network that provides high bandwidth communications between the surface and tools deployed in the wellbore. This network operates independently of drilling fluid, enabling communications for the widest range of drilling applications ...
Andrew Craig, Rhys Adsit
openaire +2 more sources