Summary of ASP Pilots in Daqing Oil Field

Wang, Demin; Cheng, Jiecheng; Wu, Jianhua; Yang, Zhenyu; Yao, Yuming

doi:10.2118/57288-ms

Cited by 55 publications

(9 citation statements)

References 2 publications

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“…Therefore, the damage of the alkali-containing composite system to the reservoir during the flooding process cannot be ignored (Chen et al, 2014;Guo et al, 2017b;Wang et al, 2016). Finally, the ternary compound flooding produced fluid emulsification degree is very serious, the emulsion structure is very complicated, and the production fluid treatment cost is high (Demin et al, 1999;Guo et al, 2017a;Nguyen and Sadeghi, 2012;Olajire, 2014). In summary, the current commonly used chemical flooding enhanced oil recovery technology cannot meet the needs of effectively improving sweep efficiency, oil washing efficiency, good injectability, and reservoir environmental adaptability.…”

Section: Synergistic Effectmentioning

confidence: 99%

Research progress of viscoelastic surfactants for enhanced oil recovery

Tang

Mpelwa

et al. 2021

Energy Exploration & Exploitation

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Although new energy has been widely used in our lives, oil is still one of the main energy sources in the world. After the application of traditional oil recovery methods, there are still a large number of oil layers that have not been exploited, and there is still a need to further increase oil recovery to meet the urgent need for oil in the world economic development. Chemically enhanced oil recovery (CEOR) is considered to be a kind of effective enhanced oil recovery technology, which has achieved good results in the field, but these technologies cannot simultaneously effectively improve oil sweep efficiency, oil washing efficiency, good injectability, and reservoir environment adaptability. Viscoelastic surfactants (VES) have unique micelle structure and aggregation behavior, high efficiency in reducing the interfacial tension of oil and water, and the most important and unique viscoelasticity, etc., which has attracted the attention of academics and field experts and introduced into the technical research of enhanced oil recovery. In this paper, the mechanism and research status of viscoelastic surfactant flooding are discussed in detail and focused, and the results of viscoelastic surfactant flooding experiments under different conditions are summarized. Finally, the problems to be solved by viscoelastic surfactant flooding are introduced, and the countermeasures to solve the problems are put forward. This overview presents extensive information about viscoelastic surfactant flooding used for EOR, and is intended to help researchers and professionals in this field understand the current situation.

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Section: Synergistic Effectmentioning

confidence: 99%

Research progress of viscoelastic surfactants for enhanced oil recovery

Tang

Mpelwa

et al. 2021

Energy Exploration & Exploitation

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“…In addition, Argentina, Brazil, Canada and Germany announced plans to commence polymer flood projects in Argentina El Tordillo field, Voador offshore field, Horsefly Lake field and Bochstedt field respectively [15]. However, one of the largest ASP flood projects as of today is in Daqing Field where ASP flooding has been studied and tested through several pilots of different scales for over 15 years [36,[41][42][43][44]. Other Chinese ASP projects documented in the literature are Gudong [45], Karamay [46,47], Liahoe and Shengli [36] fields.…”

Section: Review Of Gasmentioning

confidence: 99%

Enhanced Oil Recovery Practices: Global Trend, Nigeria’s Present Status, Prospects and Challenges

Alawode

Falode

2021

CJAST

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Enhanced oil recovery (EOR) techniques are considered due to unimpressive oil recovery, limited oil reserves, and non-applicability of primary recovery methods in some (heavy oil) fields. In Nigeria, preparation is in gear towards implementing EOR projects. This paper therefore reviews the global trend of EOR practices and discusses Nigeria’s present status, prospects, and challenges. Most EOR projects are employed in sandstone (high permeability) reservoirs; hence based on lithological considerations, all EOR methods are feasible in Nigeria. However, miscible hydrocarbon gas injection is found to be a very good EOR choice because it would drastically reduce the uneconomical practice of gas flaring; besides, transportation of carbon dioxide (CO2) and flue gas is virtually non-existent in Nigeria. Chemical (especially surfactant) flooding is costly; hence it would be feasible in Nigeria if oil price is high. At present, cost implications of heat treatment facilities may be an impedance to implementing thermal EOR for heavy oil in Nigeria. Though microbial EOR is the cheapest, it is not favorable in high temperature (above 85 oC), high salinity (above 100,000 ppm) and deeper (beyond 3,500m) reservoirs. For EOR practices to thrive in Nigeria, there should be an extensive economic evaluation and forecasting, effective research and development, effective training of technical staff for proper operation, surveillance and maintenance of EOR projects, implementation of health, safety and environmental (HSE) guidelines, low inflation rates, low interest rates on loans, general price stability, favorable tax policy, low import duties on machineries and equipment used for EOR, modified private market decisions and encouraging legal and regulatory framework.

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“…ASP flooding has been proved in few projects around the world to be an effective method to enhance production. If properly planned and executed, this method has been shown to be a technical and economical success -refer SPE 57288 [8].…”

Section: Design Of the Pilot Testsmentioning

confidence: 99%

Single Well Tests to determine the Efficiency of Alkaline-Surfactant Injection in a highly Oil-Wet Limestone Reservoir

Zubari¹,

Sivakumar²

2003

All Days

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TX 75083-3836, U.S.A., fax 01-972-952-9435. AbstractThe Mauddud carbonate reservoir is the main oil producer in Bahrain oilfield that has been undergoing crestal gas injection with natural aquifer support at the flanks. It has been producing since 1932 and currently in a very mature stage. Due to its rocks wettability characteristics (preferentially oilwet nature), the residual oil left behind gas and water fronts range from 20-70%. One of the potential options to recover portion of this residual oil is through Chemical Flooding possibly Alkaline-Surfactant-Polymer (ASP) flood. A project was hence initiated to investigate its technical and economical feasibility. It was decided to carry out field experiments to gauge the reservoir response through well-bore treatments before proceeding with a full-scale study and field pilot implementation. Initial field-testing on single-well huff-andpuff basis with experimental recipes provides sufficient positive indications for the project to proceed.The results of these initial tests are presented in this paper.

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Summary of ASP Pilots in Daqing Oil Field

Abstract: This paper was prepared for presentation at the 1999 SPE Asia Pacific Improved Oil Recovery Conference held in Kuala Lumpur, Malaysia, 25–26 October 1999.

Cited by 55 publications

References 2 publications

Research progress of viscoelastic surfactants for enhanced oil recovery

Research progress of viscoelastic surfactants for enhanced oil recovery

Enhanced Oil Recovery Practices: Global Trend, Nigeria’s Present Status, Prospects and Challenges

Single Well Tests to determine the Efficiency of Alkaline-Surfactant Injection in a highly Oil-Wet Limestone Reservoir

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