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Li L.,China Petroleum Engineering and Design Institute Ltd. | Huang Q.,China Petroleum Engineering and Design Institute Ltd. | Liang J.-Q.,China Petroleum Engineering and Design Institute Ltd. | Tang Z.-G.,China Petroleum Engineering and Design Institute Ltd. | Gao L.,China University of Petroleum - East China
Xiandai Huagong/Modern Chemical Industry | Year: 2013

Poly-surfactant composite flooding is a new enhanced oil recovery (EOR) technology in the oil field, which has a great significance to enhance oil recovery for the old oil filed. Based on the ground flooding way of ASP, the geological characteristics of even central areas of Kalamay Oil Field and the formulation requirement of SP, the purified produced water from production of crude oil is used as dissolved fluid of SP to ensure the compatibility and reliability for the ground system of SP. It can fully use the heat energy and guarantee the accuracy of the concentration of SP. At the same time, it can greatly reduce the shear property of the polymer and ensure the viscosity requirement of SP, thus greatly enhance the economic benefits of EOR. Source


Jia Y.,China University of Petroleum - East China | Jia Y.,Huizhou Daya Bay Huaying Petrochemical Co. | Wang Y.,China University of Petroleum - East China | Wang K.,China Petroleum Natural Gas Co. | And 2 more authors.
Petroleum Processing and Petrochemicals | Year: 2011

The change law of cold filter plugging point(CFPP) for various diesels was studied using diesel from Dagang Petrochemical Company as a case study. Results show that the cold flow properties of diesel are improved by blending various diesel components and the optimum blending ranges for Dagang diesel product are obtained as follows: 30%-55% of straight run diesel, 0-40% of hydrotrea-ted diesel and the rest for FCC diesel,the more FCC diesel is added, the lower CFPP is obtained. A model with a precision of 2°C to predict the CFPP of blended diesel is set up adopting the idea of piecewise function and processing data by numerical analysis software MATLAB. Thus, the qualities of diesel product during blending could be controlled. Through component analysis of various diesel fractions, it is concluded that the CFPP of diesel is highly depended on the wax content of the fuel, usually CFPP increases with the increase of wax content. CFPP relates with the total amount of wax content and n-alkane content in the blending stock, without direct relationship with saturates content. Source


Liang J.-Q.,China University of Petroleum - East China | Liang J.-Q.,China National Petroleum Corporation | Liang J.-Q.,China Petroleum Engineering and Design Institute Ltd. | Wang Y.-Z.,China University of Petroleum - East China | And 6 more authors.
Xiandai Huagong/Modern Chemical Industry | Year: 2011

With the depth of oil exploration, the crude oil production of high acid value increases year by year. Very serious corrosion to the processing equipments are caused by high-acid crude oil during the course of processing, the anticorrosion becomes more and more important. Corrosive medium in crude oil, corrosive action and all kinds of corrosion factors are expounded comprehensively. Various anticorrosion measures are proposed from the process route, material, and additives. Source

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