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AFE: drilling fluids

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Increase in the <span class="search-highlight">drill</span>-in <span class="search-highlight">fluid</span> yield point, 10 s and 10 min gel strength <span class="search-highlight">af</span>...
Published: 04 June 2012
Fig. 5 Increase in the drill-in fluid yield point, 10 s and 10 min gel strength after 8 hrs due to the hydrolysis of PLA under high temperature. More
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Case F. Position of remaining gelled <span class="search-highlight">drilling</span> <span class="search-highlight">fluid</span> in 7 × 9-in. annulus <span class="search-highlight">af</span>...
Published: 01 October 2000
Fig. 16 Case F. Position of remaining gelled drilling fluid in 7 × 9-in. annulus after 1.6 annular volumes were injected at 0.41 m/s. Casing rotation is 22 rev/min. Flow is toward the reader. The exit velocity field (m/s) is also shown. More
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Case G. Position of remaining gelled <span class="search-highlight">drilling</span> <span class="search-highlight">fluid</span> in 7 × 9-in. annulus <span class="search-highlight">af</span>...
Published: 01 October 2000
Fig. 17 Case G. Position of remaining gelled drilling fluid in 7 × 9-in. annulus after 1.6 annular volumes were injected at 0.41 m/s. Casing rotation is 50 rev/min. Flow is toward the reader. The exit velocity field (m/s) is also shown. More
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, April 15–17, 2013
Paper Number: SPE-164617-MS
... Abstract Investigating lost circulation in DEA 13 JIP has shown that it is difficult to arrest losses while drilling with non-aqueous drilling fluids (NAF) as compared to aqueous drilling fluids (AF). In an earlier work (Kulkarni 2012), a novel method was discussed to characterize the plugging...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, February 20–22, 2012
Paper Number: SPE-150726-MS
... and field applications when LCM is used in aqueous drilling fluids (AF) as opposed to non-aqueous drilling fluids (NAF). The present work provides a novel rheological tool to distinguish plugging performance of fiber-laden LCM in AF and NAF. The LCM plugging performance is determined by conducting tests...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, April 3–5, 2017
Paper Number: SPE-184542-MS
... commercial samples. The impact of the PCE and AFS dispersants on the fluid loss of cement slurries achieved from hydroxyethyl cellulose was investigated via static fluid loss and rheology measurements. All PCE polymers improved the fluid loss performance of HEC significantly more than AFS; i.e. they required...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2003
Paper Number: OTC-15060-MS
..., the amount of gas flared during operations must have a higher sales value than the UB AFE cost. Fourth, the UB system used operationally must have the capability to produce gas dominant multiphase fluids ("wet gas") while drilling. Additionally, due to the fact that producing while drilling from oil...
Proceedings Papers

Paper presented at the SPE Europec featured at 78th EAGE Conference and Exhibition, May 30–June 2, 2016
Paper Number: SPE-180145-MS
... that the use of immiscible combinations of two fluids is more effective for the purpose; however, inattentive applications may result in excessive use of heavy fluid. In this study, a 20-foot carbon-steel pilot well annulus was manufactured and used for displacement experiments with various drilling muds...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference and Exhibition, March 1–3, 2016
Paper Number: SPE-178807-MS
... effect society of petroleum engineers casing and cementing Simulation afe region piston model rupture disk analytical calculation drilling fluid formulation immiscible fluid model fluid pressure pressure balance case study annular pressure drilling equation of state Upstream Oil &amp; Gas...
Proceedings Papers

Paper presented at the SPE International Conference and Exhibition on Health, Safety, Security, Environment, and Social Responsibility, April 16–18, 2018
Paper Number: SPE-190603-MS
... and schematics of the full-scale installation can be seen in Figure-3 . An 11.85 ppg low-viscosity (8 cP) kill fluid was used to enable efficient cleaning after the test. The displaced (annular) fluid (AF) was slightly weighted bentonite drilling mud having 8.6 ppg density. Properties of both fluids can...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 20–22, 2009
Paper Number: SPE-121542-MS
... this temperature, film formation is no longer possible and fluid loss control is not achieved. Addition of AFS dispersant extends the temperature range at which PVA works from 38°C to about 60°C. The reason behind is that the more anionic and higher soluble AFS prevents PVA from dissolving. PEI, when used on its...
Proceedings Papers

Paper presented at the SPE Arctic and Extreme Environments Technical Conference and Exhibition, October 15–17, 2013
Paper Number: SPE-166855-MS
... the new concept. Four wells were drilled "shoe to shoe" 25 days ahead of approved for expenditure (AFE) time for the drilling phase. More than 70 proactive interventions to prevent nonproductive time (NPT) were made and delivered to the drilling teams during trial runs; of these, 60% were considered...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, November 15–17, 2011
Paper Number: IPTC-15281-MS
... BHA design, including continuous bit optimization to find the best PDC bit for steer-ability, durability, ROP, and stick/slip reduction. This optimization approach lead to a total of 7.5 drilling days saved in the AFE. The use of motors and the vertical drilling system saved 1 day of AFE. Using...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 9–12, 2020
Paper Number: SPE-203005-MS
... Abstract This paper presents a comprehensive laboratory and field study discussing development, formulation, and application of a new flat rheology drilling fluid system that meets the challenges faced when drilling in an ultradeepwater well environment. The use of this new flat rheology...
Proceedings Papers

Paper presented at the Technical Meeting / Petroleum Conference of The South Saskatchewan Section, October 17–19, 1993
Paper Number: PETSOC-SS-93-22
... side of the annulus thereby reducing the drilling rate and trar/sport perjomlQnce af drilling fluids. A method and apparatus has been developed co enhance wellbore cleaning employing a lransverse axial-rravelling dynamic-pressure jets system (TAD-Jets system) in collaboration with convemiotlQl axial...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 1995
Paper Number: OTC-7842-MS
... conventional types of projects. INTRODUCTION The Garden Banks 388 field development is centered Concept screening studies were initiated in 1990 SUbsequent to the discovery well, which was drilled in 1989. The threshold reserve level was achieved in 1992. At this point, the AFE's were prepared along...
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Normal stress difference N 1  vs. shear rate plotted for the base <span class="search-highlight">AF</span> (aqueo...
Published: 20 February 2012
Figure 3 Normal stress difference N 1 vs. shear rate plotted for the base AF (aqueous drilling fluid) and NAF (non-aqueous drilling fluid) using PP-50 geometry on Anton Paar rheometer. More
Proceedings Papers

Paper presented at the IADC/SPE International Drilling Conference and Exhibition, March 3–5, 2020
Paper Number: SPE-199628-MS
... Abstract Wellbore Instability and Lost Circulation continue to be the costliest problem encountered during wellbore construction. While conventional remediative treatments can decrease drilling fluid losses, increasingly challenging enviornments like mature and depleted fields require...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, April 3–5, 2017
Paper Number: SPE-184552-MS
... in stirred fluid loss tests. Furthermore, the excellent fluid loss performance of the phosphate-modified FLA remained unaffected in the presence of AFS dispersant or ATBS-co-acrylic acid retarder, while the effectiveness of the conventional, non-phosphated FLA was severely impeded by these additives...
Proceedings Papers

Paper presented at the ADIPEC, October 31–November 3, 2022
Paper Number: SPE-211526-MS
... is the total loss of returns. Typically, when drilling from the Jack Ups, wells are drilled with seawater and high viscosity sweeps once total losses have been encountered due to surface fluid handling problems. This results in poor hole cleaning, hole instability and risk of stuck pipes. Additionally, once...

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