Results 211 to 220 of about 41,718 (241)
Some of the next articles are maybe not open access.
Enhancing Drilling Response and Improving ROP on PDC Bits by Utilizing 1-in. Diameter Cutters
SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, 2021Abstract This paper details the improvements to drilling performance and torsional response of fixed cutter bits when changing from a conventional 19-mm cutter diameter configuration to 25-mm cutter diameters for similar blade counts in two different hole sizes.
Adam Xavier Thomas +9 more
openaire +1 more source
The Use of MPD and an Unweighted Fluid System for Drilling ROP Improvement
IADC/SPE Managed Pressure Drilling & Underbalanced Operations, 2007Abstract A drilling technique that is increasingly being used for performance drilling purposes is Managed Pressure Drilling (MPD). MPD is typically considered a tool to mitigate drilling hazards, and reduce the resulting non-productive time due to encountering lost circulation zones, tight pore pressure/fracture gradient margins, and ...
James Foster, Adrian Steiner
openaire +1 more source
SPE/IADC Drilling Conference, 2007
Abstract A critical cost in future deep oil and gas recovery is the cost to drill a well. This cost is dominated by the rate of penetration (ROP) that becomes increasingly important with increasing depth. Improving the technology of drilling and increasing the ROP will lower the cost to drill a well.
Arnis Judzis +6 more
openaire +1 more source
Abstract A critical cost in future deep oil and gas recovery is the cost to drill a well. This cost is dominated by the rate of penetration (ROP) that becomes increasingly important with increasing depth. Improving the technology of drilling and increasing the ROP will lower the cost to drill a well.
Arnis Judzis +6 more
openaire +1 more source
Twist Compensation Reduces Trajectory Tortuosity and Improves ROP
IADC/SPE Drilling Conference and Exhibition, 2018Abstract 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.
openaire +1 more source
A ROP Optimization Approach Based on Improved BP Neural Network PSO
2015Effective optimization of ROP (Rate of Penetration) is a crucial part of successful well drilling process. Due to the penetration complexities and the formation heterogeneity, traditional way such as ROP equations and regression analysis are confined by their limitations in the drilling prediction.
Jinan Duan +4 more
openaire +1 more source
Drill Bits Evolution in Lump-Sum Turnkey Project Delivers Up to 70 Percent ROP Improvement
Day 1 Tue, March 23, 2021, 2021Abstract Drilling rate of penetration (ROP) is one of the variables that influences well delivery timing and cost. ROP is affected by many factors, including but not limited to rock strength, well profile, bottom hole assembly (BHA) design, challenging formations per section, and drill bit selection.
Syed Zahoor Ullah +4 more
openaire +1 more source
SPE Intelligent Energy International, 2012
Abstract Tool manufacturers have made significant progress improving downhole drilling technologies, but little effort has focused on optimizing the drilling process. The set-it-and-forget-it approach and inherent inefficiencies of the automatic driller are inadequate for keeping bit parameters matched to lithology and wellbore ...
Yashodhan Gidh +2 more
openaire +1 more source
Abstract Tool manufacturers have made significant progress improving downhole drilling technologies, but little effort has focused on optimizing the drilling process. The set-it-and-forget-it approach and inherent inefficiencies of the automatic driller are inadequate for keeping bit parameters matched to lithology and wellbore ...
Yashodhan Gidh +2 more
openaire +1 more source
Increased ROP of Jet Drilling From Improvement of the Bottomhole Flow Field
SPE Drilling Engineering, 1988Summary With the wide application of jet drilling, continuous research has been carried out to utilize fully the bit hydraulic power at the hole bottom. This paper describes an experimental study of fluid-flow direction in the flow field and discusses its application. The undesirable flow patterns of vortex, backflow, and stagnation were
openaire +1 more source
Adaptive PDC Drill Bit Reduces Stick-Slip and Improves ROP in the Midland Basin
IADC/SPE Drilling Conference and Exhibition, 2018Abstract 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 +4 more
openaire +1 more source
ROP Improvement in Hard Formation Drilling Using Large Size PDC Cutters
59th U.S. Rock Mechanics/Geomechanics SymposiumABSTRACT: With the ongoing development of oil and gas drilling equipment, the weight on bit, torque, and hydraulic energy in shallow formations are now sufficient for conventional bits. The study shows that under sufficient energy supply, optimizing PDC bits with larger-diameter cutters can significantly enhance the
Jiusen Wei +4 more
openaire +1 more source