Survey on injection–production status and optimized surface process of ASP flooding in industrial pilot area

Wang, Zhihua; Pang, Renshan; Le, Xinpeng; Zhan-gang, Peng; Hu, Zhiwei; Wang, Xiaotong

doi:10.1016/j.petrol.2013.09.010

Cited by 55 publications

(32 citation statements)

References 21 publications

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“…Large-scale oil production in Daqing Oilfield has been faced with severe wax precipitation due to the cold weather and poor physical properties of the crudes [43]. A 6.3 km-long and 0.219 mdiameter pipeline in Daqing Oilfield transports waxy crude oil with water content less than 0.3%.…”

Section: Field Application Effect Of the Drag-reducing Surfactantmentioning

confidence: 99%

The Use of Biobased Surfactant Obtained by Enzymatic Syntheses for Wax Deposition Inhibition and Drag Reduction in Crude Oil Pipelines

Wang

et al. 2016

Catalysts

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Abstract:Crude oil plays an important role in providing the energy supply of the world, and pipelines have long been recognized as the safest and most efficient means of transporting oil and its products. However, the transportation process also faces the challenges of asphaltene-paraffin structural interactions, pipeline pressure losses and energy consumption. In order to determine the role of drag-reducing surfactant additives in the transportation of crude oils, experiments of wax deposition inhibition and drag reduction of different oil in pipelines with a biobased surfactant obtained by enzymatic syntheses were carried out. The results indicated that heavy oil transportation in the pipeline is remarkably enhanced by creating stable oil-in-water (O/W) emulsion with the surfactant additive. The wax appearance temperature (WAT) and pour point were modified, and the formation of a space-filling network of interlocking wax crystals was prevented at low temperature by adding a small concentration of the surfactant additive. A maximum viscosity reduction of 70% and a drag reduction of 40% for light crude oil flows in pipelines were obtained with the surfactant additive at a concentration of 100 mg/L. Furthermore, a successful field application of the drag-reducing surfactant in a light crude oil pipeline in Daqing Oilfield was demonstrated. Hence, the use of biobased surfactant obtained by enzymatic syntheses in oil transportation is a potential method to address the current challenges, which could result in a significant energy savings and a considerable reduction of the operating cost.

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Section: Field Application Effect Of the Drag-reducing Surfactantmentioning

confidence: 99%

The Use of Biobased Surfactant Obtained by Enzymatic Syntheses for Wax Deposition Inhibition and Drag Reduction in Crude Oil Pipelines

Wang

et al. 2016

Catalysts

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“…1 During the process of oil extraction, produced water (oily wastewater) is generated after dehydration of the produced liquid, which has a potential environmental impact. For example, it hinders the water body reoxygenation process and decreases dissolved oxygen.…”

Section: Introductionmentioning

confidence: 99%

Application of a polytetrafluoroethylene (PTFE) flat membrane for the treatment of pre-treated ASP flooding produced water in a Daqing oilfield

Zhang

Zhu

et al. 2016

RSC Adv.

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ASP (alkaline/surfactant/polymer) flooding oilfield wastewater, which is commonly produced in the oil extraction process, contains high organic content, and the waste crude oil, water resources and sewage need to be treated prior to re-injection. In this study, pre-treated ASP flooding oil field water produced in Daqing, China, was treated by a PTFE microfiltration membrane and the removal efficiency of main pollutants in oil field-produced water was studied. The contents of oil and suspended solids (SS) in the permeate obtained with the membranes were 1.15 mg/L and 1.61 mg/L, respectively, which met the re-injected water quality standards in China. Microscopic analysis of fouling showed that the membrane pollutants were mainly composed of petroleum organic pollutants, and a small amount of SiO2, CaCO3, MgCO3 and other inorganic pollutants was observed. Accordingly the operating conditions of the operating flux, back-washing cycle, back-washing flux and gas-washing flux were investigated to decrease the membrane fouling.

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“…If the water cut of dehydrated oil is higher than allowable value, the damage is enormously. Such as the storage, transportation and refining of oil are more difficulty, and the equipments can be corroded and the mechanical admixtures will deposit at pipe wall [3]. Therefore, appropriate dehydration process is the premise for ensuring the quality of dehydrated aging oil.…”

Section: Introductionmentioning

confidence: 99%

Case Study on Pulse DC Electric Field for Weakening Interfacial Film of Aging Oil

Sun¹,

Liu²,

Zhang³

et al. 2016

Proceedings of the 4th 2016 International Conference on Material Science and Engineering (ICMSE 2016)

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Abstract. Coalescence effect of the surface disposal devices is greatly impacted by the large amount of aging oil because of its complicated interfacial properties, which heavily affects oil production. The typical aging oil properties are evaluated, interfacial properties and the causes of formation are discussed in the paper. It is not efficient enough for aging oil to be disposed only with the methods of the chemical or electric-field, even though the later one has many advantages in breaking oil-water interfacial film. The water content in oil, oil content in water and the oil-water interface properties after separated can meet the industrial standard by the integration disposal of the two methods. But the pulse DC power supply must be selected in the electric-field formation so that the instantaneous high power electric pulse can be created without electrodispersion, which can easily break the oil-water interfacial film and prevent current leakage. Besides, the aging oil disposal process is designed and the operating parameters are also optimized in the paper.

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Survey on injection–production status and optimized surface process of ASP flooding in industrial pilot area

Cited by 55 publications

References 21 publications

The Use of Biobased Surfactant Obtained by Enzymatic Syntheses for Wax Deposition Inhibition and Drag Reduction in Crude Oil Pipelines

The Use of Biobased Surfactant Obtained by Enzymatic Syntheses for Wax Deposition Inhibition and Drag Reduction in Crude Oil Pipelines

Application of a polytetrafluoroethylene (PTFE) flat membrane for the treatment of pre-treated ASP flooding produced water in a Daqing oilfield

Case Study on Pulse DC Electric Field for Weakening Interfacial Film of Aging Oil

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