Optimum Fluid Design for Drilling and Cementing a Well Drilled with Coil Tubing Technology

Svendsen, Ove; Saasen, Arild; Vassoy, B.; Skogen, E.; Mackin, F.; Normann, S.H.

doi:10.2118/50405-ms

Cited by 26 publications

(17 citation statements)

References 13 publications

(5 reference statements)

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“…The difference between extensional viscosities of XG and PHPA solutions (Figure 3) is much higher than difference between their shear viscosity values ( Figure 2). These results seem to be in support of Svendsen et al's (1998) conclusion that the effect of extensional viscosity on the filtration loss is more significant than the effect of shear viscosity.…”

Section: Filtration Loss Testssupporting

confidence: 82%

“…Naverrete and Mitchell (1995) suggested that for the XG solutions, the flow was dominated by the shear viscosity, whereas for the PHPA solutions the flow was dominated by the extensional viscosity. Svendsen et al (1998) has shown that extensional viscosity can be successfully used to establish an internal filter cake in association with coiled tubing drilling fluid application.…”

Section: Introductionmentioning

confidence: 99%

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Extensional Viscosity of Polymer Based Fluids as a Possible Cause of Internal Cake Formation

Khan

Kuru

Tremblay³

et al. 2007

Energy Sources, Part A: Recovery, Utilization, and Environmenta

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In this study, the effect of the rheology of viscoelastic fluids on the formation of internal filter cakes has been investigated. A series of core flow experiments have been conducted to investigate the possible relationship among the polymer concentration, fluid extensional viscosity, shear viscosity, filtration loss characteristics, and pressure drop across the core samples, and hence, any change in the original rock permeability. Results of extensional and shear viscosity measurements, API filtration loss tests, and formation damage tests conducted by using three different partially hydrolyzed polyacrylamide (PHPA) solutions (0.5, 1.5, and 3.0 lb/bbl) are shown. Comparison of the PHPA test results with the previously published xanthan gum (XG) test results is also provided.

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Section: Filtration Loss Testssupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Extensional Viscosity of Polymer Based Fluids as a Possible Cause of Internal Cake Formation

Khan

Kuru

Tremblay³

et al. 2007

Energy Sources, Part A: Recovery, Utilization, and Environmenta

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“…In a recent study, Svendsen et al 18 has shown that extensional viscosity can be successfully used to establish an internal filter cake in association with a coiled tubing drilling fluid application.…”

Section: Introductionmentioning

confidence: 99%

An Investigation of Formation Damage Characteristics of Xanthan Gum Solutions Used for Drilling, Drill-In, Spacer Fluids, and Coiled Tubing Applications

Khan

Kuru

Trembla³

et al. 2003

Canadian International Petroleum Conference

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Xanthan Gum has been used extensively as a viscosifier in the oil industry for different applications due to its unique rheological properties. An experimental study has been conducted to investigate the formation damage characteristics of Xanthan Gum based fluids and the results are presented in this paper.A series of core flow experiments have been conducted to investigate the possible relationship among the Xanthan Gum concentration, fluid extensional viscosity, shear viscosity, filtration loss characteristics, pressure drop across the core samples and hence, any change in the original permeability of the porous media.Results of extensional and shear viscosity measurements, API filtration loss tests, and formation damage tests conducted by using fluids of different xanthan gum concentrations are shown in this paper.

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“…Using formate based mud can solve these concerns that have been usually encountered with conventional water and oil-based muds (Svendsen et al, 1998;Svoboda, 2002;Messler et al, 2004;Downs et al, 2006).…”

Section: Drilling Fluids Backgroundmentioning

confidence: 99%

Characteristics and Removal of Filter Cake Formed by Formate-Based Drilling Mud

Alotaibi

2008

All Days

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This mud typically contains XC-polymer, starch, polyanionic cellulose, and a relatively small amount of calcium carbonate particles, and is used to drill a deep sandstone reservoir (310°F). Calcium carbonate particles are frequently used as weighting material to maintain the pressure that is required for well control and minimize the leak-off. Such solids become consolidated and trapped in the polymeric material and this makes the filter cake a strong permeability barrier. The conventional method for cleaning the filter cake is by circulating solid-free formate brines at a high flow rate. This mechanical technique removes only the external drilling fluid damage. Citric acid at 10 wt%, formic acid, and lactic acid were found to be incompatible with formate brine at room temperature. However, these acids were compatible with formate brine at temperatures greater than 122°F. Only acetic acid was compatible with formate brine. A formula was developed that is compatible at room and reservoir temperature. This formula was effective in removing filter cake. A corrosion inhibitor was added to protect downhole tubulars. In general detail, this research will discuss the development of this formula and all tests that led to its development.

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Optimum Fluid Design for Drilling and Cementing a Well Drilled with Coil Tubing Technology

Cited by 26 publications

References 13 publications

Extensional Viscosity of Polymer Based Fluids as a Possible Cause of Internal Cake Formation

Extensional Viscosity of Polymer Based Fluids as a Possible Cause of Internal Cake Formation

An Investigation of Formation Damage Characteristics of Xanthan Gum Solutions Used for Drilling, Drill-In, Spacer Fluids, and Coiled Tubing Applications

Characteristics and Removal of Filter Cake Formed by Formate-Based Drilling Mud

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