Effects of alkaline/surfactant/polymer on stability of oil droplets in produced water from ASP flooding

Deng, Shubo; Bai, Renbi; Chen, Jiaping; Yu, Gang; Jiang, Zhanpeng; Zhou, Fengling

doi:10.1016/s0927-7757(02)00281-9

Cited by 124 publications

(69 citation statements)

References 14 publications

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“…In a series of articles, Deng and co-workers have investigated the properties of oil-in-water emulsions based on the Daqing crude oil [1,[4][5][6]. Their interest has been focused on the stability of oil droplets in the produced water and treatment of the produced water using a novel crossflow oil-water separator.…”

Section: Introductionmentioning

confidence: 99%

The effects of oil displacement agents on the stability of water produced from ASP (alkaline/surfactant/polymer) flooding

Wang

et al. 2011

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Section: Introductionmentioning

confidence: 99%

The effects of oil displacement agents on the stability of water produced from ASP (alkaline/surfactant/polymer) flooding

Wang

et al. 2011

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…Alkali is added in ASP flooding to decrease the quantity of the surfactant through competitive adsorption with the surfactant and reaction with petroleum acids in crude oil to generate a new surfactant (Pope 2007;Rivas et al 1997). However, the use of alkali has introduced problems in the injection of the ASP solution These problems include the deposition of alkali scales in the reservoir and bottom hole (Hou et al 2005;Bataweel and Nasr-El-Din 2011;Jing et al 2013), difficulty of treating the produced water (Deng et al 2002), and reduction of the viscosity of the combined ASP slug (Wang et al 2006;Nasr-El-Din H.A. et al Nasr-El-Din et al 1992).…”

mentioning

confidence: 99%

Effect of viscosity and interfacial tension of surfactant–polymer flooding on oil recovery in high-temperature and high-salinity reservoirs

Yue

Cheng³

et al. 2013

J Petrol Explor Prod Technol

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This study aims to analyze the influence of viscosity and interfacial tension (IFT) on oil displacement efficiency in heterogeneous reservoirs. Measurement of changes in polymer viscosity and IFT indicates that viscosity is influenced by brine salinity and shearing of pore media and that IFT is influenced by salinity and the interaction between the polymer and surfactant. High concentrations (2,500 and 3,000 mg/L) of polymer GLP-85 are utilized to reduce the effect of salinity and maintain high viscosity (24 mPa s) in formation water. After shearing of pore media, polymer viscosity is still high (17 mPaÁs). The same polymer viscosity (17 mPaÁs) is utilized to displace oil, whose viscosity is 68 mPaÁs, at high temperature and high pressure. The IFTs between surfactant DWS of 0.2 % in the reservoir water of different salinities and crude oil droplet are all below 10 -2 mN/m, with only a slight difference. Surfactant DWS exhibits good salt tolerance. In the surfactant-polymer (SP) system, the polymer solution prolongs the time to reach ultra-low IFT. However, the surfactant only has a slight effect on the viscosity of the SP system. SP slugs are injected after water flooding in the heterogeneous core flooding experiments. Recovery is improved by 4.93-21.02 % of the original oil in place. Furthermore, the core flooding experiments show that the pole of lowering the mobility ratio is more significant than decreasing the IFT of the displacing agent; both of them must be optimized by considering the injectivity of the polymer molecular, emulsification of oil, and the economic cost. This study provides technical support in selecting and optimizing SP systems for chemical flooding.

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“…This produced water sometimes contains the injection of water and condensation water. Nowadays, in onshore oily wastewater treatment technology has been used successfully in the ASEAN oilfield, but the produced water is more difficult to treat than that from water flooding and polymer flooding [7]. Moreover, has stated that the produced water is more difficult to treat than water flooding since the water produced from AlkalineSurfactant-Flooding (ASP) flooding has chemical complex substances and stable emulsion system [8].…”

Section: Drilling Fluidsmentioning

confidence: 99%

A Review in Oil Exploration and Production Waste Discharges According to Legislative and Waste Management Practices Perspective in Malaysia

Lodungi¹,

Alfred²,

Khirulthzam³

et al. 2017

Int J Waste Resour

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IntroductionOil and gas are one of the most important resources in the world and it plays a role in the global economy. However, the activities of oil and gas from most of companies in the world have many negative impacts on the environment. One of the reasons is due to the waste production from the oil and gas industry. According to Environmental Quality Act 1974, waste can be defined as any matter prescribed to be waste and any matter, whether liquid, solid, gaseous or radioactive, which is discharged, emitted, or deposited in the environment in such volume, composition or manner as to cause an alteration of the environment. The exploration and extraction of oil and gas processes produce the waste materials such as used drilling fluids and drilling cuttings like complex mixtures of clays and chemicals. Usually the waste is discharged directly from the platforms into the surrounding marine water.Based on the standard procedure, the waste has to clean first before discharge the waste into the marine water by various physical means and the company has to follow the limits on levels of contaminants based on the regulations and legislations. If the disposal of these wastes is not regulated, the resulting environmental pollution may lead to radiation exposure, whether for people directly involved in oil and gas operations, the general public, animals and plants. There are several potential adverse impacts to the marine water due to disposal of wastes. For example is it can pollute of the marine environment, surface soil and water degradation and groundwater contamination?In general, this paper provides an overview on the oil exploration and production waste discharges according to legislative and waste management practices perspective in Malaysia and the study of the effect of the waste produced from the oil and gas industry to the environment. The scopes of the study are covered by several sections as follows: the oil exploration and production waste discharges, waste management in oil and gas waste products, the regulations and legislations act related to oil and gas in Malaysia and the possible environment impact due to disposal of wastes to marine water. Literature ReviewOil exploration and production waste discharges AbstractThe core frame of research is dominated by the waste management practice of the oil exploration and production waste discharges from Malaysia's petroleum industry related to legislation. As the waste harms the environment, the composition and possible environmental impact of the waste produced from the offshore drilling process activities are studied. This research will lead to a better waste management practices framework which comply Malaysia's legislation and regulation act. In this study, the biggest issues that limits the waste management practices in petroleum industry in Malaysia is lacking of practices on petroleum waste management. The main difference between waste management practices between Asian and African countries is the African country has more utilization of waste into us...

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Effects of alkaline/surfactant/polymer on stability of oil droplets in produced water from ASP flooding

Cited by 124 publications

References 14 publications

The effects of oil displacement agents on the stability of water produced from ASP (alkaline/surfactant/polymer) flooding

The effects of oil displacement agents on the stability of water produced from ASP (alkaline/surfactant/polymer) flooding

Effect of viscosity and interfacial tension of surfactant–polymer flooding on oil recovery in high-temperature and high-salinity reservoirs

A Review in Oil Exploration and Production Waste Discharges According to Legislative and Waste Management Practices Perspective in Malaysia

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