TY  - CONF
N2  - The dissolution of quartz mineral in sandstone reservoir due to chemical enhanced oil recovery (cEOR) processes, such as alkaline surfactant polymer (ASP) flooding has resulted in the scaling of silica and silicates around the wellbore formation and in the production wells. These scales can block and hinder the flow of producing fluids if left untreated. This will lead to reduced production rates as well as equipment damages eventually. The adsorption and squeeze performance of developed scale inhibitors that made up of polyamidoamine (PAMAM) dendrimers and pteroylâ??Lâ??glutamic acid (PGLU) was assessed in this paper. The results were compared to diethylenetriamine penta(methylene phosphonic acid), a commercial phosphonate scale inhibitor known as DETPMP. The crushed Berea sandstone core was soaked in scale inhibitor solutions for static adsorption test. Core flooding was performed to investigate the adsorption and retention of scale inhibitors in sandstone formation. The prediction of scale inhibitor squeeze performance was simulated based on core flooding data obtained. Laboratory results reveal PAMAMâ??2â??PGLU scale inhibitor that comprises second generation PAMAM dendrimer exhibits the highest adsorption and retention in sandstone core. On top of that, the permeability of sandstone core was also increased with the treatment of PAMAMâ??PGLU scale inhibitors. SQUEEZE IV software also predicted that PAMAMâ??PGLU scale inhibitors yielded longer squeeze lifetime than DETPMP scale inhibitor. Both experimental and modelling results showed a good fit in terms of adsorption and squeeze lifetime. In this paper, the tested PAMAMâ??PGLU scale inhibitors demonstrate better adsorption, retention, and squeeze lifetime in sandstone formation. Although commercial scale inhibitors are effective at a wide range of reservoir conditions, the disposal of phosphonate scale inhibitors has raised concern due to their toxicity and low biodegradability. Hence, these developed PAMAMâ??PGLU scale inhibitors could be offered as environmentâ??friendly and effective alternatives. Copyright 2023, Society of Petroleum Engineers.
TI  - Adsorption and Squeeze Performance of PAMAM-PGLU Inhibitors for Silicate Scale Mitigation Due to ASP Flooding
KW  - Alkalinity; Amino acids; Biodegradability; Dendrimers; Enhanced recovery; Floods; Oil well flooding; Reservoirs (water); Sandstone; Silica; Silicates
KW  -  Alkaline/surfactant/polymer flooding; Core-flooding; L-glutamic acids; Performance; Phosphonates; Polyamidoamine dendrimers; Polyamidoamines; Sandstone cores; Sandstone formations; Scale-inhibitors
KW  -  Adsorption
Y1  - 2023///
ID  - scholars19179
A1  - Tan, B.C.
A1  - Saaid, I.M.
A1  - Mahat, S.Q.A.
A1  - Zainal, S.
A1  - Anuar, A.
A1  - Bhaskoro, P.T.
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85166903091&doi=10.2118%2f213866-MS&partnerID=40&md5=81bf0c70366c6fb53b8c951b9ece2f30
N1  - cited By 0; Conference of 2023 SPE International Conference on Oilfield Chemistry, OCC 2023 ; Conference Date: 28 June 2023 Through 29 June 2023; Conference Code:190381
AV  - none
VL  - 2023-J
ER  -