Research And Application For Hydrothermal Catalytic Viscosity Of Heavy Oil Technology

In view of high temperature and high pressure steam injected into the oil reservoir in the exploitation of heavy oil field, by heating of heavy oil to reduce viscosity of heavy oil to enhance oil liquidity technology, People associated with the process is similar to the refinery heavy oil processing, that heat in the process of catalytic cracking process.For this process we found a new thought of reducing high-viscosity oil. To injection of high temperature and high pressure steam, while injection the corresponding catalyst. In underground, high temperature and high pressure, the heavy oil to react of heavy oil catalytic cracking reaction, so as to achieve the purpose of the reducing viscosity of heavy oil to improve oil recovery. Engineering and technical personnel at home and abroad, in view of the characteristics and the formation of heavy oil reservoir properties, respectively from the principle, the choice of the catalyst, catalytic cracking and catalytic cracking formation oil compatibility problems And so on all kinds of research. They developed a new technology to enhance heavy oil recovery.This topic is in view of the heavy oil reservoir for hydrothermal catalytic viscosity technology research and application in the Feng Cheng Oil Field in Xin Jiang Provice. According to the domestic and foreign research scholars on the hydrothermal catalytic cracking of heavy oil reservoir of research conclusions, our topic research goal is to develop a new and efficient catalyst, which suitable for heavy oil and ultra heavy oil, as hydrothermal catalytic viscosity agent at the Feng Cheng Oil Field in Xin Jiang Provice. Study the industrialized production technology and produce the qualified products. For field test and evaluation of heavy oil exploitation, and promotion gradually, finally form the industrialized application. This topic combines with the cycles of steam stimulation technology and Steam stimulation process in the Feng Cheng Oil Field, Through indoor study, we analysis the characteristic of heavy oil in Feng Cheng Oil Field. Then we select a catalysts, which can suitable for the formation fluid, heavy oil reservoir, high temperature, high pressure and steam stimulation process.At the same time, We developed the effective injection methods suitable for industrial production. Our subject include the following contents:1. The physicochemical properties and structure characteristics of heavy oil in Feng Cheng Oil Field. Mainly analyzes the different oil sources, the characteristics of heavy oil, Know the basic composition and the structure features of heavy oil;2. The development and screening of New and high efficient hydrothermal catalytic viscosity catalyst for heavy oil. According to the characteristics of different oil sources of heavy oil, Developed a low cost, high activity and reaction conditions, wide applicability of the wide series catalyst;3. Conditions of hydrothermal catalytic viscosity of heavy oil research. Mainly studied the reaction temperature, reaction time, catalyst amount, oil/water ratio and PH value on the hydrothermal catalytic viscosity influence.4. Studied about mechanism of hydrothermal catalytic viscosity of heavy oil. Mainly through the group composition of crude oil before and after the reaction, Glial, asphaltene infrared spectra, elemental analysis, nuclear magnetic resonance (NMR) analysis, Gas chromatograph chart of saturated hydrocarbon reaction before and after, As well as the reaction gas before and after the comprehensive analysis of gas chromatography mass spectrometry, Gain understanding of catalytic reaction mechanism, To provide theoretical guidance to the research of catalytic viscosity;5. Catalytic viscosity of pilot production process conditions. For the small kind of synthetic laboratory to test the amplification of production,Control the product yield and quality, The production process conditions of catalytic viscosity optimization research6. Study of site construction plan, Combined with the geological conditions of carrying out a research into the construction technology parameters, To ensure project construction technology for the best conditions for success7. Field test and result analysis, Mainly to the hydrothermal catalytic viscosity of heavy oil mining technology, Field tests of various process parameters is analyzed, the summary, analysis of the mining effect.This topic mainly for heavy oil of Hydrothermal catalytic viscosity studies, where in the area32and the area18in Feng Cheng Oil Field. Through more than a year of indoor research and field test, we have been selected suitable catalyst for heavy oil, which can be used in high temperature and high pressure, and The corresponding Injection process. Then according to on-site production process and safety requirements and design form a complete set of site construction plan. Finally, our study has established the corresponding heavy oil effect evaluation method.Because this project has carried on the field test, in four Wells in Feng Cheng Oil Field, And has been success. So the hydrothermal catalytic technology of viscosity reduction has great popularization and application value, It Can be large-scale used in Feng Cheng oilfield.