scholarly journals Achieving optimal micro-explosions in stable emulsions by adding water-soluble polymers

2022 ◽  
Author(s):  
Cao Liu ◽  
Tianchun Xiao ◽  
Lingrui Cui ◽  
Lian CEN ◽  
Jinshan XU ◽  
...  
Keyword(s):  
Surface Tension ◽  
Interfacial Tension ◽  
Surface Activity ◽  
Xanthan Gum ◽  
Emulsion Stability ◽  
Water Soluble ◽  
Water Soluble Polymers ◽  
Soluble Polymers ◽  
Strong Surface ◽  
First Time

The emulsified feedstock technique is to improve the performance of products by using the micro-explosion phenomenon of emulsion. However, an obstacle to some applications of this technology is the contradiction between emulsion stability and micro-explosion intensity. For the first time, adding water-soluble polymers was proposed to solve this problem. Two polymers of xanthan gum (XG) and nonionic polyacrylamide (NPAM) were investigated and the results show that micro-explosions have five forms. As one of these five forms, the intensity of optimal micro-explosion is three orders of magnitude higher than other forms, and adding 0.5% XG increases the probability of optimal micro-explosion from 0% to 60% due to the low surface activity, strong thickening and pseudoplasticity of XG solutions. By contrast, NPAM does not promote micro-explosion because of its strong surface activity. Finally, a new mechanism for micro-explosions related to surface tension, interfacial tension and viscosity is proposed.

Improving Gas Bubbles’ Half Life in Foam Drilling Fluid

2013 ◽  
Vol 62 (1) ◽  
Author(s):  
Issham Ismail ◽  
Nur Suriani Mamat ◽  
Baihaqi Mamat ◽  
Ahmad Shamsulizwan Ismail ◽  
Azmi Kamis ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Xanthan Gum ◽  
Drilling Fluid ◽  
Water Soluble ◽  
Polymer Foam ◽  
Water Soluble Polymers ◽  
Stable Foam ◽  
Soluble Polymers ◽  
The Stability ◽  
Foam Drilling

An underbalanced drilling using foam drilling fluid is one of the most effective solutions which are capable of preventing formation damage, differential sticking, or circulation lost. Nevertheless, the limitation of using foam drilling fluid is the stability of its rheological properties which would affect its lubricity characteristics. Therefore, a research study was carried out to determine the stability and effectiveness of water soluble polymers as an additive in foam drilling fluid. To produce the required and most stable foam, four types of surfactants had been tested, namely sodium dodecyl sulfate (anionic), cetyltrimethylammonium bromide (cationic), T×100 (non ionic), and n-alkyl betaines (amphoteric). Then, the water soluble polymers, namely xanthan gum, hydroxyethyl cellulose, guar gum, and carboxymethyl cellulose, were evaluated as a stabilizer in the said foam drilling fluid. The laboratory works involved lubricity and rheological properties tests, which were conducted at ambient condition. The experimental results showed that the use of xanthan gum with anionic surfactant produced the most stable foam drilling fluid compared to other polymers. Rheological properties of the polymer foam drilling fluid were compared with water-based mud, and it was revealed that polymer foam drilling fluid could perform as effective as the latter. The significant advantage of using polymer foam drilling fluid was its coefficient of friction which was found to be lower than the water-based mud. 

scholarly journals PRINCIPAL APPROACHES TO CREATION OF POLYMER COMPOSITIONS - ANALOGUES OF XANTHAN GUM FOR THE INTENSIFICATION OF OIL AND GAS PRODUCTION

2020 ◽  
pp. 102-108
Author(s):  
V. A. Kozlovtsev ◽  
T. P. Aleinikova ◽  
A. B. Golovanchikov ◽  
E. V. Kozlovtsev ◽  
M. S. Povetkin ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Polyvinyl Alcohol ◽  
Xanthan Gum ◽  
Oil And Gas ◽  
Gas Production ◽  
Water Soluble ◽  
Sodium Tetraborate ◽  
Oil And Gas Production ◽  
Water Soluble Polymers ◽  
Soluble Polymers

This article analyzes the effectiveness of the use of xanthan gum for drilling and oil and gas production. It is shown that water-soluble polymers can perform such functions after their structuring and the introduction of additional reagents that regulate the amount of hydrogen bonds between the limited swellable mini-gels. The option of creating such a composition based on polyvinyl alcohol modified with epichlorohydrin and sodium tetraborate is given.

Perbandingan Karakteristik Surfaktan Metil Ester Sulfonat dan Sodium Lauril Sulfonat sebagai Bahan Emulsifier

2016 ◽  
Vol 9 (2) ◽  
pp. 167-176
Author(s):  
Eldha Sampepana ◽  
Paluphy Eka Yustini ◽  
Aditya Rinaldi ◽  
Amiroh Amiroh
Keyword(s):  
Fatty Acids ◽  
Surface Tension ◽  
Methyl Ester ◽  
Interfacial Tension ◽  
Palm Oil ◽  
Emulsion Stability ◽  
Raw Material ◽  
Enzymatic Method

Surfactant which is used as raw emulsifier in an industry activity such as Sodium Lauryl Sulfonate is a raw material import, it is petroleum derivative which is not renewable and may cause pollution to the environment, because it is not degraded and are carcinogenic. The purpose of the research is to compare the characteristics of the Quaternary methyl ester sulfonat (MES) and Sodium Lauryl Sulfonat (SLS) as emulsifier. First, make the MES by filtering and eliminating fatty acids of palm oil, then process the MES with enzymatic method become methyl ester, then react it in sulfonation and metanolization process, and also neutralized with NaOH. Next, the MES experiment is compared with SLS and existing MES in the market. The results show that surfactants MES experiment has value hidrofil lipofil balance (HLB) interfacial tension and emulsion stability greater than MES in the market and SLS. And the surface tension of MES experiment is larger than MES in the market, but smaller compared to SLS.ABSTRAKSurfaktan yang digunakan sebagai bahan baku emulsifer dalam aktivitas suatu industri pada saat ini seperti Sodium Lauril Sulfonat  merupakan bahan baku import yang merupakan turunan dari minyak bumi, dengan sifat tidak dapat diperbaharui dan dapat menimbulkan pencemaran terhadap lingkungan karena tidak mudah terdegradasi serta bersifat karsinogenik. Metil ester sulfonat dari bahan minyak sawit merupakan surfaktan dengan sifat mudah terdegradasi yang perlu diketahui karakteristiknya. Penelitian bertujuan untuk membandingkan karakteristik surfaktan metil ester sulfonat (MES) dan Sodium Lauril Sulfonat (SLS) sebagai bahan emulsifier. Mula-mula dilakukan pembuatan MES dengan cara menyaring dan menghilangkan asam lemak minyak sawit terlebih dahulu, kemudian diolah menjadi metil ester secara enzimatis, lalu direaksikan secara sulfonasi dan metanolisis, serta dinetralkan dengan NaOH. Selanjutnya MES hasil percobaan dibandingkan dengan SLS dan MES yang ada dipasaran. Hasil penelitian menunjukkan bahwa surfaktan MES memiliki nilai hidrofil lipofil balance (HLB) tegangan antar muka dan stabilitas emulsi lebih besar apabila dibandingkan dengan MES di pasaran dan SLS, kecuali nilai stabilitas emulsi antara MES dan SLS sama. Dan tegangan permukaan MES hasil percobaan, lebih besar dibandingkan dengan MES dipasaran, dan lebih kecil dibandingkan dengan SLS. Kata kunci :   Metil  ester sulfonat, hidrofil lipofil balance, emulsifier, sodium lauril sulfonat , stabilitas emulsi 

New quenching media based on water-soluble polymers

1981 ◽  
Vol 23 (2) ◽  
pp. 104-106 ◽  
Author(s):  
A. V. Tolstousov ◽  
O. A. Bannykh
Keyword(s):  
Water Soluble ◽  
Water Soluble Polymers ◽  
Soluble Polymers ◽  
Quenching Media

scholarly journals SANS quantification of bound water in water-soluble polymers across multiple concentration regimes

Soft Matter ◽  
2021 ◽  
Author(s):  
Helen Yao ◽  
Bradley D. Olsen
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Bound Water ◽  
Water Soluble ◽  
Wide Concentration Range ◽  
Water Molecules ◽  
Water Soluble Polymers ◽  
Soluble Polymers

Small-angle neutron scattering is used to measure the number of bound water molecules associating with three polymers over a wide concentration range. Different fitting workflows are evaluated and recommended depending on the concentration regime.

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