Comparative studies on the effect of Synthesized and the imported retarder on the Thickening time of Cement Slurry

Anaele, John Vitus; Otaraku, Ipeghan Jonathan

doi:10.14445/22315381/ijett-v68i2p204

Cited by 2 publications

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“…17 The prepared slurries (neat and slurry with retarders) were allowed to set at surface temperature. From the laboratory experiment, the obtained thickening or setting time for the neat slurry was 300mins, this is similar to that reported by 14 and the setting time for the slurry with 5ml of OPKS retarder was 420mins while that of the imported retarder was 530mins as represented in Figure 5. The synthesized retarder from OPKS showed a 40% increase in thickening time compared to that of the neat slurry.…”

Section: Characterization Using Ftir Spectroscopysupporting

confidence: 85%

“…Also the complex vibration associated with the C-O, C-C stretching and C-OH bending in polysaccharides. Finally the band at approximately 600cm -1 -740cm -1 might be associated with the ester S=OR and the sulfonic S=O groups which were formed as a result of sulphonation reaction of sodium with the OH group of the aliphatic side chain of the lignin, this is similar to that reported by Anaele et al, 13 Setiati et al, 14 Watkins et al, 23 and Heradewi. 24 Furthermore, Figure 4 is the FTIR spectroscopy analysis of the imported cement retarder; which shows a deep and broad peak at the functional group zone having a wave number of 3333.7cm -1 showing the presence of OHgroup in the phenolic and carboxylic acid compounds.…”

Section: Characterization Using Ftir Spectroscopysupporting

confidence: 83%

“…Operational problems as a result of short thickening times are especially dramatic because the cement can set prematurely in the casing or pumping equipment. 13,14 Cementing operations are mostly carried out at high temperatures and high pressures (HTHP) in wells and this requires cement formulation that are properly design to withstand these conditions. Hence, chemical additives are used to modify cement slurry's behavior in order to meet those requirements.…”

Section: Introductionmentioning

confidence: 99%

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2023

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One major problem of the agro -industries in Nigeria is the management of its wastes generated from its processes. These wastes can be converted to useful products and are attractive for being an alternative to solving the disposal issues in the industry. This study assessed the synthesis of lignosulfonates from Oil Palm Kernel Shells (OPKS) and evaluated its performance as a retarder additive for oil well cementing operations. OPKS was synthesized using the pulping process and filtered to isolate the lignin from cellulose and hemicellulose. Sulfonating process was carried out using Sodium Bisulfite (NaHSO 3 ) to produce sodium lignosulfonate. Thereafter, Fourier Transform Infrared spectroscopy (FTIR) was applied to determine the functional groups present in the synthesized product. The product was evaluated for its performance as a retarder through the thickening time test using an automated HTHP Cement Consistometer at different temperatures, concentrations and consistency (Bc). A linear increment of cement slurry thickening time up to 40% with increase in concentrations was observed in relation to a reference (commercial retarder). The results also showed that lignosulfonates from OPKS has the potential to retard the set of cement slurry, however to maximize its retardation function, more investigations needs to be carried out to purify and modify the synthesized lignin. Its utilization as a cement retarder will promote the preservation of the environment and also reduce the overdependence on expensive cement additives.

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Section: Characterization Using Ftir Spectroscopysupporting

confidence: 85%

Section: Characterization Using Ftir Spectroscopysupporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

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2023

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Cement slurry set retarding potential of oil palm kernel shell wastes for oil well operations

Oji¹,

Altraide²,

Ogbonna³

2023

IPCSE

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One major problem of the agro –industries in Nigeria is the management of its wastes generated from its processes. These wastes can be converted to useful products and are attractive for being an alternative to solving the disposal issues in the industry. This study assessed the synthesis of lignosulfonates from Oil Palm Kernel Shells (OPKS) and evaluated its performance as a retarder additive for oil well cementing operations. OPKS was synthesized using the pulping process and filtered to isolate the lignin from cellulose and hemicellulose. Sulfonating process was carried out using Sodium Bisulfite (NaHSO3) to produce sodium lignosulfonate. Thereafter, Fourier Transform Infrared spectroscopy (FTIR) was applied to determine the functional groups present in the synthesized product. The product was evaluated for its performance as a retarder through the thickening time test using an automated HTHP Cement Consistometer at different temperatures, concentrations and consistency (Bc). A linear increment of cement slurry thickening time up to 40% with increase in concentrations was observed in relation to a reference (commercial retarder). The results also showed that lignosulfonates from OPKS has the potential to retard the set of cement slurry, however to maximize its retardation function, more investigations needs to be carried out to purify and modify the synthesized lignin. Its utilization as a cement retarder will promote the preservation of the environment and also reduce the overdependence on expensive cement additives.

show abstract

Comparative studies on the effect of Synthesized and the imported retarder on the Thickening time of Cement Slurry

Cited by 2 publications

References 0 publications

Untitled

Untitled

Cement slurry set retarding potential of oil palm kernel shell wastes for oil well operations

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