Breaking of Emulsions Using Locally Formulated Demusifiers

Emuchay, D.; Onyekonwu, Michael; Ogolo, Naomi Amoni; Ubani, Chikwendu Ebenezer

doi:10.2118/167528-ms

Cited by 8 publications

(7 citation statements)

References 10 publications

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“…This agitation may occur at subsurface components or at surface components such as process facilities, transportation piping and refining facilities. In the recent decade, the presence of crude oil emulsion has been a significant challenge that the oil and gas industry is facing right now [5] due to the depletion of many mature oil reservoirs, and hence, increasing water production. The effect of this problem extends beyond the upstream operations and becomes a major problem during oil transportation and refining [6,7].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Polyvinylpyrrolidone for Application as a Demulsifier for Water-in-Oil Emulsion

Mohyaldinn¹,

Rammudo²,

Ayoub³

2017

TOPEJ

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Introduction: Emulsification of produced immiscible mixed liquid of oil and water is a problem frequently recognized in surface production facilities in oil fields. The formed emulsions are required to be demulsified to avoid the negative consequences on piping and processing equipment. Nowadays, chemical demulsification is a preferable method to avoid or retard emulsification during the process of oil treatment. Materials and Methods: In the present study, Polyvinylpyrrolidone, poly-[1-(2-oxo-1-pyrrolidinyl)-ethylene] has been experimentally investigated as a chemical demulsifier for water-in-oil emulsion formulated by mixing a crude oil with synthesized oilfield produced water. Oilfield brines were synthesized by dissolving NaCl in deionized water to obtain salinity similar to the oilfield produced water. The sample of water-oil emulsion was prepared by agitation process at the condition of controlled rpm speed, ambient temperature and concentration of emulsifying agent. Stability of the emulsion was investigated using Turbiscan MA 2000 instrument. Results: The efficiency of the demulsification was screened using Bottle Test. It has been found that Polyvinylpyrrolidone, poly-[1-(2-oxo-1-pyrrolidinyl)-ethylene] accelerates the separation of the emulsion as compared to blank ones (with no addition of PVP). A maximum demulsification performance of the PVP was observed at an optimum concentration of 60 ppm.

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Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Polyvinylpyrrolidone for Application as a Demulsifier for Water-in-Oil Emulsion

Mohyaldinn¹,

Rammudo²,

Ayoub³

2017

TOPEJ

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“…Semakin stabil emulsi yang terjadi maka semakin sulit pula terjadinya proses demulsifikasi pada campuran tersebut. Hal ini karena emulsi merupakan campuran heterogen yang memiliki satu cairan yang terdispersi dengan baik dalam bentuk tetesan sehingga sulit untuk memisahkan antara dua jenis fluida yang ada dalam campuran (Emuchay, Onyekonwu, Ogolo, & Ubani, 2013). Kestabilan emulsi air di dalam minyak ini sendiri juga disebabkan karena adanya bahan yang secara alami dalam minyak mentah tersebut seperti seperti aspal, surfaktan alami dan lempung (Oriji & Appah, 2012).…”

Section: Pendahuluanunclassified

Studi Laboratorium Pembuatan Demulsifier dari Minyak Kelapa dan Lemon untuk Minyak Kelapa dan Lemon untuk Minyak Bumi pada Lapangan x di Provinsi Riau

Erfando

Khalid

Safitri

2019

TEKNIK

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Demulsifier digunakan untuk mengatasi masalah emulsi minyak mentah pada saat produksi. Artikel ini memuat uji laboratorium demulsifier lokal dari minyak kelapa dan lemon dibandingkan demulsifier komersil. Parameter yang diperiksa adalah nilai pemisahan emulsi, pengaruh parameter pengujian terhadap pemisahan air secara statistik, dan water quality hasil demulsifikasi dengan uji TDS (Total Dissolved Solid) dan pH. Penelitian ini menggunakan metode saponifikasi dalam pembuatan demulsifier dan pengujian demulsifier menggunakan metode bottle test. Variasi temperatur adalah 400C, 500, 600C, 700C, dan 800C dengan konsentrasi 1ml, 3ml, dan 5 ml. Hasil penelitian menunjukkan bahwa demulsifier lokal mampu memecah emulsi di seluruh temperatur pengujian. Pemisahan tertinggi terjadi pada temperatur 600C,700C, dan 800C dengan konsentrasi optimal 3ml dan 5 ml dan hasil pemisahan sebesar 32 ml dan 33 ml. Di sisi lain demulsifier komersil pada temperatur 400C dan konsentrasi 5ml gagal memecah emulsi. Pengaruh temperatur dan konsentrasi terhadap pemisahan air secara berurut sebesar 42,5 % dan 2,7%. Water quality yang baik hasil demulsifikasi terjadi pada pengujian sampel demulsifier lokal 2 dengan TDS 244 ppm dan pH 6,99.

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Section: Introductionmentioning

confidence: 99%

“…The process of crude oil production is often accompanied inevitably with produced water containing chlorides, sulfates, nitrates and other inorganic compounds (Dimitrov et al, 2012;Abdurahman et al, 2012;Emuchay et al, 2013). The water is produced either in form of free water or emulsion which increases in percentage towards the end of the life of the well (Emuchay et al, 2013). The amount of water that emulsifies crude oil in most production systems varies with production process and crude oil type; hence there could be water-in-oil or oil-in-main criteria necessary for crude oil emulsions formation are presence of immiscible liquids, presence of an emulsifying agent and sufficient agitation to disperse one liquid as droplets in another (Ahmed et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

“…However, literature shows no one demulsifier fits all and there are growing concerns in the oil and gas industry on the need to develop effective and efficient demulsifiers (Abdulkadir, 2006, Abdulrahman et al, 2012, Falode and Aduroja, 2015, Ali et al, 2016. Emuchay, (2013) formulated five different blends of demulsifiers from locally sourced materials using starch, camphor, calcium hydroxide, limonene, liquid soap and paraffin wax. The demulsifying effect of these demulsifiers on a Niger Delta crude oil emulsion sample at 40°C shows that they were all effective within the shortest possible separation time with a clean top oil of almost 100% and less than 1% sediment.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of a novel ionic demulsifier in the treatment of selected Niger Delta crude oil emulsions

Mepaiyeda¹,

Ofoegbu²,

Isehunwa³

et al. 2020

J. Petroleum Gas Eng.

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Emulsion treatment is one of the major challenges in crude oil production, transportation and processing. It has great impact crude oil quality, refining costs and environment. The use of chemical demulsifiers is a widely accepted procedure in the industry. However, demulsifiers used in treatment of crude oil emulsions in Nigeria industries are imported. This study was designed to evaluate the effectiveness of a new ionic demulsifier used in the treatment of crude oil samples obtained from the Niger Delta. Six emulsion samples were formulated at 1000 and 3000 rpm and at 0, 71.4 and 143 g/L salinities. The temperature, interaction time and chemical concentrations were varied in their demulsification treatment. The new demulsifier was used to treat the emulsions under various conditions and its performance compared with that of a commercial demulsifier. Locally formulated demulsifier yielded 0.92, 0.22, 1.45, 0.73, 0.52, 0.9, 0.78 and 1.13 ml water separation for heavy crudes at eight varying treatment conditions. The commercial demulsifeier gave 0.47, 0.30, 0.93, 0.30, 0.33, 0.83, 0.25 and 0.6 ml water separation at the same treatment conditions. The mean yield of the new demulsifier at the temperature-additive treatment combination for saline and heavier crudes A2, A4 and A6 gave 1.5, 1.18 and 1.2 against commercial demulsifier which gave 1.4, 0.75 and 0.4. It was concluded that the use of only one variable like chemical concentration, is not enough in assessing the overall effectiveness of a demulsifier for the treatment of crude oil emulsion systems.

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Breaking of Emulsions Using Locally Formulated Demusifiers

Cited by 8 publications

References 10 publications

Experimental Investigation of Polyvinylpyrrolidone for Application as a Demulsifier for Water-in-Oil Emulsion

Experimental Investigation of Polyvinylpyrrolidone for Application as a Demulsifier for Water-in-Oil Emulsion

Studi Laboratorium Pembuatan Demulsifier dari Minyak Kelapa dan Lemon untuk Minyak Kelapa dan Lemon untuk Minyak Bumi pada Lapangan x di Provinsi Riau

Evaluation of a novel ionic demulsifier in the treatment of selected Niger Delta crude oil emulsions

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