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Cement slurry fluid-loss-control additives (FLAs)

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Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 8–10, 2013
Paper Number: SPE-164103-MS
... and its effectiveness regarding fluid loss control are decreased. Table 3 API fluid loss and thickening time of cement slurries containing different amounts of CaATBS-co- NNDMA and NaATBS-co-itaconic acid, measured at 80 °C ( Tiemeyer 2012 ) CaATBS- co -NNDMA fluid loss additive (% bwoc...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, April 3–5, 2017
Paper Number: SPE-184541-MS
..., optimum slurry viscosities were observed at ambient temperature, thus avoiding pumping issues. Laboratory experiments showed that the fluid-loss control was excellent, but the viscosity of cement slurry was high at ambient temperature when the HM biopolymer was used as a FLA by itself. The addition of DCY...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, April 3–5, 2017
Paper Number: SPE-184552-MS
... performance phosphate group annular pressure drilling sea water well control drilling fluid property polymer Effectiveness MEP fluid loss polymer drilling fluid management & disposal Oil and gas well cementing requires cement slurries which are tailored to the specific wellbore...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 13–15, 2015
Paper Number: SPE-173796-MS
... Abstract On deep and ultra-deep wells, high temperature stable additives are applied to control the properties of cement slurries. For fluid loss control, polymers based on 2-acrylamido-tertiary-butyl sulfonic acid (ATBS) are commonly used. However, at elevated temperatures the performance...
Proceedings Papers

Paper presented at the SPE Production Operations Symposium, March 21–23, 1993
Paper Number: SPE-25442-MS
.... The thickening time of the control slurry of Class H cement plus 0.2% free water control agent (FWCA) was 4 hr:24 min at 100°F (38°C). As shown in Table 3, the slurry containing 1.1 % PVAL-ECR + 0.2% FWCA 323 4 CHARACTERIZATION OF SURFACTANT ENHANCED CEMENT FLUID LOSS ADDITIVES SPE 25442 CASE HISTORIES...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 20–22, 2009
Paper Number: SPE-121541-MS
...). These synthetic anionic copolymers achieve fluid loss control by reducing filter cake permeability through polymer adsorption onto the positively charged surfaces of cement hydrates (adsorptive working mechanism) (Desbrieres 1993; Plank 2006). It has been shown that while this fluid loss additive (FLA) works...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 20–22, 2009
Paper Number: SPE-121542-MS
... is dissolved in the mixing water, no fluid loss control is achieved. At normal dosages (e. g. 0.4% bwoc of dissolved PVA), the cement slurries dehydrate in less than 30 minutes. Even at the addition of 2.0% bwoc PVA, a fluid loss of 228 mL/30 min only is observed. The PVA film which was always formed when FLA...
Journal Articles
SPE Drill & Compl 28 (04): 398–404.
Paper Number: SPE-164103-PA
Published: 09 December 2013
... at 80°C in slurries containing different dosages of FLA and 0.1% bwoc retarder; ( ) = adsorbed amounts in percentage of dosage added. To summarize, for this binary admixture system composed of CaATBS- co -NNDMA and Na–LS, a dual synergistic effect regarding fluid-loss control and cement...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–28, 2016
Paper Number: SPE-181504-MS
... water control agent, and extender for use in wells up to 225°F and in some conditions up to 250 °F. The single, new cement additive effectively and economically replaces separate fluid loss additives, free water control, and slurry stabilizers as well as reduces retarder loadings. Laboratory and field...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 11–13, 2011
Paper Number: SPE-141182-MS
... and incomplete cement hydration. To control the properties of oil well cement slurries, additives are included into the formulation ( Smith 1990 ). Fluid loss additives (FLAs) are added to oil well cement to reduce uncontrolled water loss from the slurry while being pumped along porous formations in the bore...
Proceedings Papers

Paper presented at the Middle East Oil Show, June 9–12, 2003
Paper Number: SPE-81414-MS
.... For service companies Company B and Company C, cement slurries for these applications that do not require Latex additive for effective fluid loss control have been successfully developed. These additives are FLA-2 for Company B and FLA-3 for Company C. Performance tests of Company A, LTXA show that 1.0 gps...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 11–13, 2011
Paper Number: SPE-141179-MS
... or polyethylene imine do not prevent water loss. This lead to the conclusion that neither film forming additives nor synthetic polymers which physically plug cement filtercake pores will work sufficiently in this specific cement system. Thus, polymers which control fluid loss by adsorption within the pores...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference, August 25–27, 2014
Paper Number: SPE-170538-MS
... Various polymers have been modified using chemicals which improve the performance and temperature stability range of polymers. HEC is used as a fluid loss control agent in cement slurry. The chemical reaction of HEC with Naphthalene Sulfonate Formaldehyde Condensate (NSFC) and Polyvinyl...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference, June 8–9, 2021
Paper Number: SPE-201080-MS
... 289 2 600 300 210 3 0.9 1.1 0.3 0.6 30 279 3 600 300 210 3 1.2 1.35 0.3 0.6 60 285 4 600 300 210 3 1.8 1.5 0.6 0.6 90 269 Fluid loss control additives (FLA) were added to control the water loss from the pumpable cement slurry to the nearby formation...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference, February 28–March 3, 1989
Paper Number: SPE-18619-MS
... gradient. SPE 18619 W. H. GRANT, JR. 3. Tail cements designed with fluid loss additives and dispersants exhibit little change in slurry performance with slurry density change. 4. Lignosulfonate retarders cause slurry performance problems with changing slurry densities. 5. Quality control and pre-job...
Proceedings Papers

Paper presented at the International Symposium on Oilfield Chemistry, February 28–March 2, 2007
Paper Number: SPE-106006-MS
... chemical additive, hereafter referred to as fluid invasion resisting additive (FIRA). Additional slurry details and test results are provided in the following descriptions. 4 SPE 106006 Slurry 1 (control) Composition: Cement + lightweight additive + fluid loss additive (FLA) + friction reducer (FR...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition, November 1–3, 2010
Paper Number: SPE-136276-MS
... Reduced landfill impact by using this industrial byproduct Reduced chemical footprint by using fewer additives or lower dosages (free fluid, fluid loss control, and retarder) to adjust slurry performance Economical Up to 65% of cement is replaced with a byproduct Up to 25% bwoc less...
Proceedings Papers

Paper presented at the SPE/PAPG Annual Technical Conference, November 26–27, 2013
Paper Number: SPE-169643-MS
... these experimental results, HPMC polymer effectively controlled fluid loss of cement slurry up to the temperature of 190 °F. HPMC completely prevented free water and it has excellent rheology at ambient and high temperatures. In addition, HPMC was found to develop an impervious barrier for prevention of gas...
Proceedings Papers

Paper presented at the Middle East Drilling Technology Conference & Exhibition, October 26–28, 2009
Paper Number: SPE-125727-MS
... costs from well control and environmental problems. The additional rig time and material / cost quickly add up as multiple plugs are set. Plugging operations are problematic because a relatively small volume of cement slurry is placed in a large volume of well bore fluid. Mud can contaminate the cement...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 11–14, 2007
Paper Number: SPE-105217-MS
... of conventional dispersant / fluid loss control additive / accelerator. Thickening time of cement slurry should be sufficient to enable an operator to safely place the slurry to the predetermined depth. However, unnecessarily long thickening time should be avoided as excessive thickening time resulted in annular...

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