scholarly journals Performance of a novel green scale inhibitor

2021 ◽  
Vol 266 ◽  
pp. 01019
Author(s):  
Leila Mahmoodi ◽  
M. Reza Malayeri ◽  
Farshad Farshchi Tabrizi
Keyword(s):  
Produced Water ◽  
Critical Value ◽  
Mixing Ratio ◽  
Scale Inhibitor ◽  
Scale Inhibition ◽  
Optimal Value ◽  
Critical Mixing

Many aspects of oilfield scale inhibition with green scale inhibi-tors (SIs) have remained untouched. For instance, the discharge of large amounts of produced water containing various types of hazardous chemi-cals, such as SIs into the environment has become a major concern. In-stead, environmental regulators encourage operators to look for greener SIs. In this study, the performance of a green SI was investigated using PHREEQC simulation. For a specific case study, two brines are considered to mix incompatibly to estimate the critical mixing ratio that has the high-est tendency to scaling. Subsequently, for 50/50 mixing ratio as the critical value, theoptimal dosage of SI and its performance in the presence of two different rocks were investigated such that 450 mg/L SI would be consi-dered as optimal value. Moreover, the simulated results show that more SI adsorption on calcite would be predicted, compared to dolomite.

Preparation and Evaluation of Phosphate Scale Inhibitor for Oilfield Produced Water

2019 ◽  
Vol 814 ◽  
pp. 511-516
Author(s):  
Wei Wang ◽  
Yong Gen Yi ◽  
Zhi Fei Sun ◽  
San Bao Dong ◽  
Wei Chao Du
Keyword(s):  
Produced Water ◽  
Synthesis Method ◽  
Inorganic Salts ◽  
Inhibition Rate ◽  
Scale Inhibitor ◽  
Scale Inhibition ◽  
Single Scale ◽  
One Step ◽  
Inhibition Performance ◽  
Better Than

Phosphorus scale inhibitor is a kind of agent which can disperse insoluble inorganic salts in water, prevent or interfere with the precipitation and scaling of insoluble inorganic salts on metal surface, and maintain better heat transfer effect of metal equipment. Sodium triethylenetetramine hexamethylphosphonate (TETHMPS) and tetraethylenepentamine heptagon methylene phosphonic (TEPHMPS) were prepared by one-step synthesis method. The effects of temperature, concentration and mixing ratio on scale inhibition were investigated. The results showed that as the concentration of TETHMPS and TEPHMPS increases, the scale inhibition rate increases. At the same temperature, compared with TETHMPS, TEPHMPS has better scale inhibition performance, and the maximum scale inhibition rate can reach 93.59%. The scale inhibition rate of the synthesized scale inhibitor at 80 °C is better than that at 60 °C. The scale inhibition performance of the compound scale inhibitor is better than that of the single scale inhibitor, showing an ideal synergistic effect. When the concentration is 60 mg/L, the scale inhibition rate of TETHMPS is 94.26%, TEPHMPS is 94.55%, and the scale inhibition rate is above 91%.

Insight into the Mechanisms of Scale Inhibition: A Case Study of a Task‐Specific Fluorescent‐Tagged Scale Inhibitor Location on Gypsum Crystals

ChemNanoMat ◽  
2019 ◽  
Vol 5 (5) ◽  
pp. 586-592 ◽  
Author(s):  
Maxim Oshchepkov ◽  
Semen Kamagurov ◽  
Sergei Tkachenko ◽  
Anastasiya Ryabova ◽  
Konstantin Popov
Keyword(s):  
Scale Inhibitor ◽  
Scale Inhibition ◽  
Insight Into

Research Progress of Scale Inhibition Mechanism

2014 ◽  
Vol 955-959 ◽  
pp. 2411-2414 ◽  
Author(s):  
Li Xiu Liu ◽  
Ai Jiang He
Keyword(s):  
Metal Surface ◽  
Inorganic Salt ◽  
Simulation Technique ◽  
Research Progress ◽  
Inhibition Mechanism ◽  
Scale Inhibitor ◽  
Scale Inhibition

Scale inhibitor is a medicament which has the properties of dispersing insoluble inorganic salt in water, and preventing or obstructing sediment and scaling of insoluble inorganic salt on metal surface. Research on the mechanism of scale inhibition can promote using and developing scale inhibitors. In this paper, the traditional macroscopic mechanism of scale inhibition was firstly analyzed, and it was also emphasized to introduce the research progress of quantization simulation technique on the mechanism of scale inhibition, and it was also suggested to combine the microstructure of scale crystal with quantization simulation technique to have a further study on the mechanism of scale inhibition.

Managing Sulphate Reducing Bacteria (SRB) Problem Associated With Produced Water In One Of The Oil Fields Of Oil India Limited (Oil) - A Case Study

2010 ◽  
Author(s):  
Mool Chand Nihalani ◽  
S. Verma ◽  
J. Kumar ◽  
H. Dubey ◽  
Nripendra Kumar Bharali ◽  
...  
Keyword(s):  
Produced Water ◽  
Oil Fields ◽  
Sulphate Reducing Bacteria ◽  
Reducing Bacteria

Selection and Application of a Scale Inhibitor for Application in Oxygenated Produced Water, Norwegian Sector, North Sea

2009 ◽  
Author(s):  
David John Marlow ◽  
Myles Martin Jordan ◽  
Eyvind Sorhaug ◽  
Audrey Madden
Keyword(s):  
North Sea ◽  
Produced Water ◽  
Scale Inhibitor

scholarly journals Risk analysis of production process for food SMEs using FMEA method: a case study

2021 ◽  
Vol 331 ◽  
pp. 02010
Author(s):  
Prima Fithri ◽  
Muhammad Rafi ◽  
Pawenary ◽  
A. S. Prabuwono
Keyword(s):  
Human Resources ◽  
Production Process ◽  
Critical Value ◽  
Risk Priority Number ◽  
Effect Analysis ◽  
Increase Productivity ◽  
Fmea Method ◽  
Bread Production ◽  
A Company

The increasing development of the industry makes every industry have to compete with other competitors to gain an edge. The advantages of competition are influenced by several factors, one of which is good human resource management. Where if a company has good human resources, it will increase profits indirectly and can increase productivity. This research discusses case studies about the potential dangers of IKM Heppy Bakery’s potential dangers that can harm workers in bread production. The method used is Failure Mode And Effect Analysis (FMEA). Later, the data will be filled and given a rating distinguished into three parts: severity, occurrence, and detection. The data were obtained through questionnaires given to 3 workers at IKM Heppy Bakery and filled in rating values based on the provisions that have been given to the questionnaire. This Value helps determine the Risk Priority Number (RPN) obtained from multiplication between severity, occurrence, and detection. After processing the RPN multiplication data, the highest RPN value was obtained by 193 with the danger factor of the operator overheating and dehydrating due to high temperatures. Furthermore, the calculation of critical Value was obtained by 109. Based on the critical Value obtained seven hazard factors above the critical value, these seven hazard factors need to be improved so that workers do not avoid accidents when conducting the production process.

Scale inhibitors with a hyper-branched structure: preparation, characterization and scale inhibition mechanism

RSC Advances ◽  
2016 ◽  
Vol 6 (95) ◽  
pp. 92943-92952 ◽  
Author(s):  
Henghui Huang ◽  
Qi Yao ◽  
Hualin Chen ◽  
Bailing Liu
Keyword(s):  
Inhibition Efficiency ◽  
Water Bodies ◽  
Inhibition Mechanism ◽  
Industrial Water ◽  
Scale Inhibitor ◽  
Phosphorus Pollution ◽  
Scale Inhibition ◽  
New Type ◽  
Branched Structure

In order to improve the scale inhibition efficiency of existing scale inhibitors for industrial water and to reduce the phosphorus pollution of water bodies, a new type of scale inhibitor with a hyper-branched structure has been developed.

Pre-Production Deployed Scale Inhibition Treatments in Deep-Water, West Africa

2014 ◽  
Author(s):  
D.. Patterson ◽  
W.. Williams ◽  
M.. Jordan ◽  
R.. Douglas
Keyword(s):  
West Africa ◽  
Deep Water ◽  
Best Practice ◽  
Barium Sulphate ◽  
Scale Inhibitor ◽  
Monitoring Methods ◽  
Initial Water ◽  
Scale Inhibition ◽  
Production Wells ◽  
Scale Control

Abstract The injection of seawater into oil-bearing reservoirs in order to maintain reservoir pressure and improve secondary recovery is a well-established, mature operation. Moreover, the degree of risk posed by deposition of mineral scales (carbonate/sulphate) to the injection and production wells during such operations has been much studied. The current deep-water subsea developments offshore West Africa and Brazil have brought into sharp focus the need to manage scale in an effective way. In a deepwater West African field the relatively small number of high-cost, highly productive wells, coupled with a high barium sulphate scaling tendency upon breakthrough of injection seawater meant not only was effective scale management critical to achieve high hydrocarbon recovery, but even wells at low water cuts have proven to be at sufficient risk to require early squeeze application. To provide effective scale control in these wells at low water cuts, phosphonate-based inhibitors were applied as part of the acid perforation wash and overflush stages prior to frac packing operations. The deployment of this inhibitor proved effective in controlling barium sulphate scale formation during initial water production eliminating the need to scale squeeze the wells at low water cuts (<10% BS&W). To increase the volumes of scale inhibitor being deployed in the pre-production treatments and so extend the treatment lifetimes scale inhibitor was also added to the frac gel used to carry the frac sand. This paper outlines the selection methods for the inhibitor chemical for application in frac fluids in terms of rheology, retention/release, formation damage and presents the chemical returns profile from the 5 wells treated (some treatments lasting > 300 days) along with monitoring methods utilized to confirm scale control in the wells treated. Many similar fields are currently being developed in the Campos basin, Gulf of Mexico, and West Africa, and this paper is a good example of best-practice sharing from another oil basin.

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