A sustainable approach to synthesize phosphonated chitosan using ball milling and its application for oilfield scale management

Mady, Mohamed F.; Haukereid, Eirik; Abdel‐Azeim, Safwat; Hussein, Ibnelwaleed A.; Kelland, Malcolm A.

doi:10.1039/d2gc02102a

Cited by 10 publications

(4 citation statements)

References 65 publications

(145 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The appearance of the solution was observed and recorded at various time intervals. Details of the compatibility test procedure have been reported several times in our published papers in the literature. − …”

Section: Methodsmentioning

confidence: 99%

“…In this project, a dynamic scale rig (DSR) was used at 80 bar and 100 °C. These parameters are part of our general protocol to evaluate SIs and has allowed us to compare the performance of a wide variety of potential SIs. − …”

Section: Methodsmentioning

confidence: 99%

“…In the last 10 years, our research group has developed several potent phosphonate-based SIs for mitigating various oilfield inorganic scales − and metallic corrosion. , We recently investigated the inhibitory activity of SIs based on alkylmonoamine–di(methylenephosphonic acid) backbones, with the alkyl chain being a variable-length aliphatic moiety …”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Flexible, Linear, and Systematically Expanded Tetraphosphonate Bolaamphiphiles and Their Inhibition Performance against Calcite and Barite Scale Formation

et al. 2023

Self Cite

View full text Add to dashboard Cite

Oilfield scaling is one of the most prevalent water-based oilfield production problems. Chemical inhibitors are often used to combat and prevent scale deposition. The phosphonate functional group is commonly used in many scale inhibitors. A series of bolaamphiphilic alkyldiamine tetrakis(methylenephosphonic acid)s have been synthesized from 1,X-diamines, where X in the polymethylene spacer groups has an even number of 2–12 carbon atoms. These inhibitors were coined CX-T (X is the number of C atoms between the N atoms on the inhibitor backbone, and T stands for tetraphosphonates). All tetraphosphonates showed excellent compatibility with calcium ions at 100 ppm or less, i.e., normal scale inhibitor dosage levels. At higher dosages, the calcium concentration and length of the alkylene spacer chain between the nitrogen atoms also determine the compatibility. Crystal structures were determined for the calcium “complexes” with the tetraphosphonates C2-T, C4-T, C6-T, and C8-T. All tetraphosphonates were investigated for calcite and barite scale inhibition under dynamic conditions using oilfield produced waters based on the Heidrun field water composition, offshore Norway. For calcite scaling, tetraphosphonates with ethylene (2 carbons) and hexamethylene (6 carbons) spacer groups gave the best inhibition performance. For barite scaling, the best inhibition was observed for the tetraphosphonates with ethylene and tetramethylene spacer groups, which relates to the ability of both disphosphonate moieties to interact with a single barium ion.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Flexible, Linear, and Systematically Expanded Tetraphosphonate Bolaamphiphiles and Their Inhibition Performance against Calcite and Barite Scale Formation

et al. 2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…However, the introduction of several phosphonate (−PO 3 H 2 ) groups in their structure backbone leads to several drawbacks, such as poor biodegradability and intolerance to high-calcium brines. , Therefore, there is an imperative need to develop new aminomethylenephosphonate SIs that can tackle the problem of poor compatibility with high calcium ion concentrations under oilfield conditions as well as poor biodegradability. Our research group has put forth several efforts to develop environmentally acceptable phosphonate-based SIs for “high-stress” applications, such as of oilfields and geothermal, in high-supersaturation brines. − …”

Section: Introductionmentioning

confidence: 99%

Systematic Molecular-Size Variants in Diphosphonate Inhibitors for Oilfield Scale Management

et al. 2023

Self Cite

View full text Add to dashboard Cite

Organophosphorus-based scale inhibitors (SIs) have been widely used in the petroleum industry for several decades. Among them, aminomethylenephosphonates (possessing at least one −NH+–CH2–PO3H– moiety) have shown outstanding inhibition efficiency against carbonate and sulfate oilfield scales. However, one of the main drawbacks of aminomethylenephosphonate-based SIs with multiple phosphonate (−PO3H2) groups is their poor tolerance against high-calcium brines. In this work, the calcium tolerance of aminomethylenephosphonates was improved by reducing the number phosphonate groups in the inhibitor backbone to less than three and introducing a variable-length non-polar alkyl side chain while maintaining acceptable inhibitory efficiency levels. Hence, we synthesized a series of variable-length alkyl chain-based amino-di(methylenphosphonate) [(H2O3P–CH2)2–N–(X)] inhibitors, (X = methyl, ethyl, propyl, butyl, hexyl, octyl, and dodecyl). In addition, we also studied the role of the alkyl side-chain length in the diphosphonate structure backbone on the scale inhibitory activity. All newly synthesized aminomethylenediphosphonates were evaluated as SIs for calcium carbonate (calcite) and barium sulfate (barite) in brines based on the Heidrun oilfield using a high-pressure dynamic tube blocking rig at 100 °C and 80 bar. Furthermore, we investigated the calcium compatibility of all aminomethylenediphosphonate SIs at several levels of calcium stresses. The new aminoalkyldiphosphonate inhibitors possessing shorter alkyl chain lengths (X = methyl, ethyl, propyl, butyl, and hexyl) gave better calcite scale inhibition performance and outstanding calcium compatibility of up to 1000 ppm of Ca2+ compared to the commercial benchmark ATMP SI [amino-tris(methylenephosphonate)] and longer alkyl-chain diphosphonates, that is, octylamine-N,N-di(methylenephosphonate) (ODMP, C8-D) and dodecylamine-N,N-di(methylenephosphonate) (DDMP, C12-D). Moreover, we tested the thermal stability (at 130 °C for one week) of the best-performing additive (based on calcite inhibition and calcium tolerance performances), and it was found that methylamine-N,N-dimethylenephosphonate (MDMP, C1-D) was thermally stable under these harsh conditions without any loss of its inhibition performance. The Ca-C8-D “complex” was deliberately synthesized and structurally characterized. It appears that the major factor for its poor Ca tolerance is the tight packing of the octyl side-chain groups.

show abstract

Green Ostrich fat waste extracts as a novel potential inhibitor to sustainable corrosion of steel in acidic environments: Electrochemical and DFT evaluation

Errami,

EL-Asri,

Fdil

et al. 2024

Colloids and Surfaces A: Physicochemical and Engineering Aspect

View full text Add to dashboard Cite

A sustainable approach to synthesize phosphonated chitosan using ball milling and its application for oilfield scale management

Abstract: For many years, the oil and gas industry has strived to develop environmentally friendly organophosphorus-based scale inhibitors. The natural polymer chitosan has recently gained significant importance for various upstream oil...

Cited by 10 publications

References 65 publications

Flexible, Linear, and Systematically Expanded Tetraphosphonate Bolaamphiphiles and Their Inhibition Performance against Calcite and Barite Scale Formation

Flexible, Linear, and Systematically Expanded Tetraphosphonate Bolaamphiphiles and Their Inhibition Performance against Calcite and Barite Scale Formation

Systematic Molecular-Size Variants in Diphosphonate Inhibitors for Oilfield Scale Management

Green Ostrich fat waste extracts as a novel potential inhibitor to sustainable corrosion of steel in acidic environments: Electrochemical and DFT evaluation

Contact Info

Product

Resources

About