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Keywords: ecd
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Proceedings Papers

Paper presented at the IADC/SPE International Drilling Conference and Exhibition, March 3–5, 2020
Paper Number: SPE-199548-MS
... increased equivalent circulating density (ECD). Hole cleaning issues can be mitigated by using a digital twinning system that constantly monitors borehole condition with real-time data and process models, and suggests optimal actions. The solution space of possible actions, however, is very large causing...
Proceedings Papers

Paper presented at the IADC/SPE International Drilling Conference and Exhibition, March 3–5, 2020
Paper Number: SPE-199643-MS
... been implemented on the drillfloor in offshore rigs. The objectives have been to give the driller instant feedback on the ECD and other effects of the operations and allow for a safer and smoother operation within the limits of the well. The basic elements of this technology are A digital twin of...
Proceedings Papers

Paper presented at the SPE/IADC International Drilling Conference and Exhibition, March 5–7, 2019
Paper Number: SPE-194125-MS
..., and illustrate the expected wellbore pressures generated by these rates of penetration. When data is collected manually, the nuances of fluid changes are lost between property measurements. This paper will illustrate the difference between calculating equivalent circulating densities (ECD) with...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference and Exhibition, March 6–8, 2018
Paper Number: SPE-189685-MS
... fluids and materials Upstream Oil & Gas zonal isolation application Zonal Isolation Objective auto-fill float equipment fracture gradient international association of drilling contractors drilling ecd drilling fluid management & disposal Wellbore Design mud weight ECD iadc spe-189685...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference and Exhibition, March 1–3, 2016
Paper Number: SPE-178761-MS
... the formation while providing all the benefits of an emulsion system – enhanced friction reduction, effective fluid-loss control, superior rheology for hole cleaning and minimal ECD, and effective clay inhibition. Numerous attempts of using DE systems in oil field drilling fluids have been made in...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference and Exhibition, March 1–3, 2016
Paper Number: SPE-178789-MS
... Abstract Drilling operational parameters, such as pump rate, pipe tripping speed, and drilling fluid time-dependent rheological characteristics can impact wellbore pressure management and equivalent circulating density (ECD). It is important that ECD at any instant remain between fracture and...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference and Exhibition, March 1–3, 2016
Paper Number: SPE-178812-MS
... selective floatation collar rotation ERD well completion hole section requirement liner ppg centralizer real time system hanger execution low-friction cross coupling centralizer wellbore stability mud weight ECD inclination torque society of petroleum engineers Use of ERD practices...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference and Exhibition, March 1–3, 2016
Paper Number: SPE-178835-MS
... drilling prospect. drilling fluid management & disposal drilling fluid drilling operation pressure effects in drilling well control drilling fluids and materials transient simulation software ECD wellbore ballooning Upstream Oil & Gas mud weight gas Bubble circulation flow check...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference and Exhibition, March 1–3, 2016
Paper Number: SPE-178811-MS
... operations. The components of the SDL system will be reviewed and explained. Detailed planning is crucial for a successful SDL operation. The simulation work will be described with focus on ECD management and hole cleaning strategy. Torque and drag will also be covered. Actual drilling parameters will then...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference and Exhibition, March 17–19, 2015
Paper Number: SPE-173048-MS
... equivalent circulating density (ECD) and the corresponding static density (ESD) of the mud. In such cases, the combination of formation conditions and properties, and well conditions will determine the timing for possible onset of instability in the vicinity of the borehole wall. We present a set of highly...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference and Exhibition, March 17–19, 2015
Paper Number: SPE-173059-MS
... Abstract Over the last decade, the challenge of drilling narrow Equivalent Circulating Density (ECD) window wells has put increasing pressure on the performance of the drilling fluid. As a result of this, so-called ‘Fragile Gel’, or ‘Flat Rheology’ fluids have been developed by the industry and...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference and Exhibition, March 17–19, 2015
Paper Number: SPE-173046-MS
... near-wellbore stress ecd operator liner technology enable successful sidetrack It was first determined that the 8.1/2″ x 7″ hole section would be drilled conventionally down to 10610' MD / 9683' TVD after exiting the parent casing. This would allow the water source sand at 6920' MD / 6717...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference and Exhibition, March 4–6, 2014
Paper Number: SPE-167934-MS
... relatively wide temperature range, resistance to formation solids, shale inhibition, friction reduction, and management of ECD ( Zamora and Simpkins 2005 ). Thus the upper sections of both Well A and Well B were drilled with SBM. Abstract Effective hydraulic modeling to predict the equivalent...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference, March 5–7, 2013
Paper Number: SPE-163452-MS
... construction dynamic fit api standard 65 hydrostatic pressure ECD fracture cement Not all wells that are drilled and casing strings cemented in place during well construction are problematic. However, HPHT wells, depleted reservoirs, and narrow margin drilling conditions and particularly those in...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference, March 5–7, 2013
Paper Number: SPE-163446-MS
... drilling operation Upstream Oil & Gas wellbore stability compressibility isolation placement simulation drilling fluids and materials circulation modeling naf compressibility Simulation cement placement ECD placement base oil displacement rate friction pressure modeling...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference, March 5–7, 2013
Paper Number: SPE-163501-MS
... study included: drilling fluids and materials circulation drilling operation BHP drilling fluid management & disposal Upstream Oil & Gas nitrogen hole section back pressure annular pressure drilling modeling sensor interval density sbp ECD injection spe iadc 163501...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference, March 5–7, 2013
Paper Number: SPE-163486-MS
... properties. The formation of the smear zone has been investigated by modelling the mechanism of initiating micro-fractures around the wellbore wall due to high ECDs occurring during casing while drilling. The effect of plugging these generated micro-fractures by drilled cuttings and lost circulation material...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference and Exhibition, March 6–8, 2012
Paper Number: SPE-149778-MS
... 13,000 ft MD were drilled early in the program. These initial wells served as "data-gathering and technology-proving" opportunities leading up to the eventual 23,000 ft MD wells. Key technical challenges include equivalent circulating density (ECD) and drag management. ECD management became essential in...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference and Exhibition, March 6–8, 2012
Paper Number: SPE-151334-MS
... data is an accurate science where minor variations need to be evaluated. They are: wellbore design information wellbore integrity pore pressure drilling operation north sea pressure ramp evaluation estimation ecd cromer knoll group pore pressure prediction fracture gradient beta brent...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference and Exhibition, March 1–3, 2011
Paper Number: SPE-139623-MS
... for low-rheology fluids to manage downhole hydraulic needs (ECD). It is suggested that drilling-grade barite has major limitations when designing fluids for wells with critically narrow hydraulic operating windows, which are overcome by a novel process that produces micronized barite with an average...

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