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Bicarb

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Proceedings Papers

Paper presented at the International Symposium on Oilfield Scale, January 30–31, 2001
Paper Number: SPE-68314-MS
... > 250,000 mg/l and is therefore classed as a HP/HT/HS reservoir. Significant downhole carbonate scale ([Ca 2+ ] ~ 20,000 ppm; [Bicarb] ~ 560 ppm) is expected in the wellbore and near wellbore formation area initially at low GWR (GWR < 0.05) with the main mechanism being evaporation from the low volume...
Images
Modified calcite crystals formed under dynamic tests in the presence of 7.5...
Published: 26 May 2010
Figure 9 Modified calcite crystals formed under dynamic tests in the presence of 7.5 ppm MA-AAD Conditions: B1 = 500ppm Ca; B2 = 500ppm Bicarb; T = 85°C More
Images
Modified calcite crystals formed under dynamic tests in the presence of 12....
Published: 26 May 2010
Figure 10 Modified calcite crystals formed under dynamic tests in the presence of 12.5 ppm MA-AAD Conditions: B1 = 500ppm Ca; B2 = 500ppm Bicarb; T = 85°C More
Images
Calcite crystals formed under dynamic tests in the absence of inhibitor (7a...
Published: 26 May 2010
Figure 7 Calcite crystals formed under dynamic tests in the absence of inhibitor (7a) and in the presence of 7.5 ppm MA-AA and (7b & 7c) Conditions: B1 = 500ppm Ca; B2 = 500ppm Bicarb; T = 85°C More
Proceedings Papers

Paper presented at the AMPP Annual Conference + Expo, March 6–10, 2022
Paper Number: AMPP-2022-17888
... Bicarb Steel Grit 50 Mesh Garnet 1 Garnet 2 Steel Grit 40 Mesh Garnet 3 Nickel Slag Magnesium Silicate Amorphous Silica 72 Hours at 40°C / 80% RH Garnet 4 Copper Slag Coal Slag Steel Grit Sod Bicarb Steel Grit 50 Mesh Garnet 1 Garnet 2 Steel Grit 40 Mesh Garnet 3 Nickel Slag Magnesium Silicate Amorphous...
Journal Articles
SPE Drill & Compl 1 (06): 466–472.
Paper Number: SPE-14243-PA
Published: 01 December 1986
... and hydration of shales and clays. Marsh funnel Avoid the use of this tool for low-colloid mud systems concerning decisions for dilution, symptoms, or treatment. Drilling cement Pretreat with bicarb (Na 2 CO 3 ) or potassium carbonate (K 2 CO 3 ) before drilling cement. Avoid pH above 10.0 accompanied...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 8–11, 1989
Paper Number: SPE-19686-MS
... agent or as a direct additive to the microbial formulation: sodium tripolyphosphate (STPP); sodium bicarbonate (Bicarb); Cyanagel, a low-molecular-weight polyacrylamide; Petrolig-ERA, a ligriosulfonate surfactant; 2,3 butanediol; and isoamyl alcohol. A 1% by weight solution of each additive was prepared...
Journal Articles
SPE Prod & Oper 17 (04): 212–220.
Paper Number: SPE-80284-PA
Published: 01 November 2002
... to equilibrate at the stepped temperature for 1 hour to visually determine the temperature at which precipitation occurred. At 95°C, the solutions were left for 20 hours and rechecked. All 15 products were tested in dynamic carbonate scale inhibition efficiency tests with 100% Shearwater FW (bicarb=560...
Proceedings Papers

Paper presented at the OTC Brasil, October 24–26, 2017
Paper Number: OTC-28111-MS
...) and P = 25 psi (higher extension of scale formation) models. Table 2 Coefficients calculated in the design of experiment for the interaction between main variables Interactions Model 1psi) Model 25psi) Pressure x Temperature 5.89* 41.3 Pressure x MEG Cont. 52.8 39.4 Pressure x Bicarb. Conc. 22.4...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Scale, May 26–27, 2010
Paper Number: SPE-131132-MS
...Figure 9 Modified calcite crystals formed under dynamic tests in the presence of 7.5 ppm MA-AAD Conditions: B1 = 500ppm Ca; B2 = 500ppm Bicarb; T = 85°C ...
Proceedings Papers

Paper presented at the International Symposium on Oilfield Scale, January 30–31, 2002
Paper Number: SPE-74679-MS
... blocking" coil) the theoretical pH’s expected following mixing of brines 1 & 2 (see Table 1 ) to give a mixed brine representing 50:50 Mungo FW/SW were examined. This modelling was performed using ScaleChem v2.2. No pH adjustment, [Bicarb] = 500 ppm in brine/2 (250 ppm in mixed brine system...
Proceedings Papers

Paper presented at the SPE International Conference & Workshop on Oilfield Corrosion, May 28–29, 2012
Paper Number: SPE-152092-MS
.... (2012) : – Acid formation water with a pH below 6 is usually black, treat with caustic soda (NaOH) to raise the pH above 9. – High bicarb (HCO 3 − ) content above 1000 ppm, treat with caustic soda (NaOH) to raise the pH above 8.3 with high bicarbs it may take an excessive amount of caustic...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–6, 1993
Paper Number: SPE-26603-MS
... Component (mg/l) Na 12,850 12,643 25,960 26,045 8,690 8,600 Ca 1,824 2,713 2,483- 3,089 1,7.23 2,537 Mg 450 442 620 626 328 327 Fe 9.2 9.0 1.0 1.0 43 33.6 CI 20,747 20,300 42,178 42,475 13,773 13,684 bicarb 2,041 4,876 2,427 3,940 2,419 4,826 sulfate 3,425 3,337 3,373 3,647 2,958 3,060 CO2 717 47,840 1,010...
Proceedings Papers

Paper presented at the SPE International Oilfield Corrosion Symposium, May 30, 2006
Paper Number: SPE-100669-MS
... and 7 . Table 9 Equilibrium concentrations of HAc. Total Acetate Conc. (ppm) Bicarb Conc. (ppm) Calculated Equilibrium [HAc] (mM) Potential Impact on Corrosivity 2,000 3,448 0 Neutral 4,000 3,448 0 Neutral 6,000 3,448 0 Neutral 8,000 3,448 0 Neutral...
Proceedings Papers

Paper presented at the SPE International Oilfield Corrosion Conference, May 27, 2008
Paper Number: SPE-114111-MS
... the 25Cr production tubular of Well A after two years’ exposure to hydrothermal conditions. The amount of decomposition was estimated from the increase in carbonate / bicarbonate. Sample # Depth [m] Temperature Density @ 15.6 pH Titration [°C] [°F] Carb. [mol/L] Bicarb. [mol/L] Total [mol...
Proceedings Papers

Paper presented at the CORROSION 2003, March 16–20, 2003
Paper Number: NACE-03629
...., bar 100 C02, mole% 1 ! bicarb, mol/I 0.001639 diam., m 0.1 mm/y ! 1.5 0.5 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Vliq m/s 1.4 1.6 0.0 1.8 2.0 0.8 0.6 f - 0.4 - water fraction 0.2 FIGURE 9. CO 2 corrosion rates in the presence of an oil with API gravity of 45, as a function of watercut and flowrate. IAPI 38 angle...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–24, 1980
Paper Number: SPE-9375-MS
...(ppb) .00l(calcium-120)(1-solids-oil). Bicarb(ppb) .0008(calcium-120)(l-solids-oil) (12) (13) With Significant calcium present, the program recom- mends keeping the pH below 10.5. The chemical analyses on gyp, low-lime, and high-lime fluids are relatively simple. In a gyp fluid the calcium level...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference, February 18–21, 1992
Paper Number: SPE-23883-MS
.... LIGNITE DEFOAMER SOLTEX BICARB CALCIUM CARBONATE DRY BULK (RIG) SACK SACK SACK SACK 5 GAL. PAIL 5 GAL. PAlL 5 GAL. PAlL SACK 5 GAL. PAlL SACK SACK SACK DRY BULK (RIG) DRY BULK (RIG) na. BULK (MANIFOLD) LlQ. BULK (MANIFOLD) DRY BULK (MANIFOLD) LIQ. BULK (MANIFOLD) ua. BULK (MANIFOLD) LlQ. BULK (MANIFOLD...
Proceedings Papers

Paper presented at the SPE Production and Operations Symposium, March 1–5, 2015
Paper Number: SPE-173616-MS
... Mg Na Barium Sr TDS Hardness BiCarb Sulfate Chlorides 92% 37% 59% 114% 107% 61% 82% 20% 69% 47% It was observed through the scaling prediction of the water that the treated wells showed higher saturation index (potential) and momentary excess (amount). Saturation...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2011
Paper Number: OTC-21141-MS
... Calcium, Ca2+ 49 156 306 150 Magnesium, Mg2+ 6 23 26 50 Barium, Ba2+ 10 30 20 60 Iron, Fe2+ (Total) 1 0 0 1 Chloride, Cl- 6,568 8,558 8,865 12,592 Bicarb., HCO3- 2,641 1,592 1,293 1,324 Sulfate, SO42- 0 0 0 0 Bromide, Br- 180 968 283 331 pH 7.70 7.47 7.47 7.09 Table 3: Production conditions provided...

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