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Keywords: fluctuation
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Proceedings Papers

Paper presented at the SPE/IADC International Drilling Conference and Exhibition, March 8–12, 2021
Paper Number: SPE-204043-MS
... artificial intelligence fluctuation rop recommendation wob dashboard upstream oil & gas prediction driller petroleum engineer differential pressure drilling operation machine learning field trial offset well machine learning model dpre directional drilling drilling parameter subject...
Proceedings Papers

Paper presented at the SPE/IADC International Drilling Conference and Exhibition, March 8–12, 2021
Paper Number: SPE-204019-MS
... that 1.5 to 2.0 m rig heave would result in up to ±20 bar fluctuation of the lowermost sensor, risking downhole pressure to go below the pore pressure of the formation. Acting on the real-time information, the rig halted drilling and pulled the string to the shoe, waiting out the weather. Swab pressures...
Proceedings Papers

Paper presented at the SPE/IADC International Drilling Conference and Exhibition, March 5–7, 2019
Paper Number: SPE-194178-MS
... of utilization will be presented with examples. real time system rerun drilling operation Upstream Oil & Gas calculation overpull hook load deviation pipe Visualization diagnostic message rotation modelled spp Artificial Intelligence fluctuation realtime real-time monitoring provide...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference and Exhibition, March 14–16, 2017
Paper Number: SPE-184634-MS
... system compressive load liner diameter Upstream Oil & Gas flow rate top dress mill drilling operation friction factor Exhibition drillstring design fluctuation strain gauge pipe hookload application drillpipe wellbore sinusoidal assembly compression Strain gauges...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference and Exhibition, March 14–16, 2017
Paper Number: SPE-184674-MS
.... Upstream Oil & Gas aggressiveness BHA pilot bit drillstring design downhole dynamic tool WABU torque drilling operation DOCC bit bounce neutral point compression wop vibration fluctuation under-reamer aggressiveness pilot BHA dysfunction The pilot-reamer synchronization has...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference and Exhibition, March 14–16, 2017
Paper Number: SPE-184635-MS
... drillstring design Upstream Oil & Gas fluctuation drilling operation axial vibration boundary condition AET vibration Nonlinear Simulation resonant behavior Exhibition excitation frequency linearized analysis Simulation reduction Magnitude Modern horizontal wells can extend tens...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference and Exhibition, March 14–16, 2017
Paper Number: SPE-184736-MS
... Measurement drilling operation PDC bit aggressiveness bit stick slip dysfunction stick slip self-adjusting bit technology vibration WOB fluctuation Upstream Oil & Gas mechanism research well cartridge RPM bha The adverse effects of drilling vibrations and the resulting increase...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference and Exhibition, March 1–3, 2016
Paper Number: SPE-178815-MS
... improved ROP. The concept attacks and cures the root of the problem. The unintended variations in DOC at the fast time-scale, which cause vibrations, are resisted. Any gradual increase in DOC, however, is permitted to enable faster drilling. The rapid variations in DOC include the cyclic fluctuations...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference and Exhibition, March 17–19, 2015
Paper Number: SPE-173029-MS
... rotation and lower vibrations throughout the drilling system which improved ROP and extended bit life. The bit thus provided a viable solution to drilling firm limestone with interbedded chert stringers. bit selection fluctuation ROP hybrid bit deepwater exploration well Power Graph dull...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference and Exhibition, March 17–19, 2015
Paper Number: SPE-173157-MS
... unprofitable. bit design bottomhole simulator standard-chamfer cutter PDC cutter dual-chamfer bit durability simulator geometry Upstream Oil & Gas cutter ROP application bit selection fluctuation standard cutter dual-chamfer cutter Cutter Technology Oklahoma innovative dual-chamfer...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference, March 4–6, 2008
Paper Number: SPE-112683-MS
... that there is sufficient information to make informed decisions whilst drilling. This is a complex task given the uncertainty and continuous fluctuations of the various system properties in the mud channel, most of which are outside the control of the MWD/LWD service company, these include: mud pumps pulsation...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference, March 4–6, 2008
Paper Number: SPE-112733-MS
... was developed that incorporates new technology for drilling the section in one run, but with faster ROP. This PDC was purposely designed for the Berkine area (Fig. 1) and was run three times in this field. bit design bit selection fluctuation PDC bit sandstone durability Efficiency dolomite...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference, March 3–6, 1998
Paper Number: SPE-39308-MS
... and gauge aggressiveness were the keys to improved steerability. Notably, the common perception that a short, aggressive gauge is required for steerability was found to be misguided. Field applications from around the world have demonstrated that the new designs minimize tool face fluctuations despite...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference, February 18–21, 1992
Paper Number: SPE-23867-MS
... upstream oil & gas fluctuation IADCISPE IADCISPE 23867 PDC Bit Dynamics C.J. Langeveld, Shell Research B.V. Copyright 1992, IADClSPE Drilling Conference. This paper was prepared for presentation at the 1992 IADCISPE Drilling Conference heM in New Orleans, Louisiana, February 18-21, 1992. Thii paper...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference, February 18–21, 1992
Paper Number: SPE-23913-MS
... Abstract Shell Offshore Inc. (SOI) has successfully installed and operated the Soft Torque Rotary System (STRS) for the first time on two drilling rigs operating in Mobile Bay. Application of the STRS has significantly reduced torque fluctuations (up to 80%), torsional drill string vibrations...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference, March 11–14, 1991
Paper Number: SPE-21961-MS
... of ways. Actual drilling operations (bit on bottom) are sub optimal due to fluctuations in the weight on bit (WOB). Not only the rate of penetration is affected, bit life is also frequently reduced which in penetration is affected, bit life is also frequently reduced which in turn results in more round...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference, February 27–March 2, 1990
Paper Number: SPE-19933-MS
.... Monitoring systems presently available to the driller usually depend on low resolution gauges designed to display the full range of values for a specific parameter. The instrumentation is usually highly parameter. The instrumentation is usually highly damped to prevent excessive fluctuation of the gauge...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference, March 5–8, 1985
Paper Number: SPE-13422-MS
... this effect the drilling industry? Who's to gain? or Who's to lose? … the operator or the contractor? Introduction The drilling industry tends to be very cyclic with respect to its rig availability. The exact cause of this cyclic effect can be tied to the economical limitations created by the fluctuations...

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