La SaxXing Oilfield Water Flooded Layer Logging Data In Response Mechanism With Water Production Rate And The Correlation Analysis Research

According to the present SaXing oilfield took solved urgently in adjustment and potential seeking the thin and poor layer difficult problem, by remaining oil evaluation of shaftlining take heart and fluorescence analysis by means of image analysis, thin layer, low permeability, inner heterogeneity factors affect lesser, can meticulous anatomical reservoir water flooded status, increase the water flooded layer fine evaluation level, and has wide application prospects.Through the mechanism research, understand the logging information with the change rule of aqueous rise and induce the internal factors of the changes, which is the foundation logging water flooded layer evaluation theory basis; By establishing water production rate and the correlation of measured logging data, realize quantitative calculating water production rate target, improve water flooded layer evaluation level. Reservoir water production rate is controlled by many factors, which can be divided into two types, internal and external reasons in recovery mode on the external cause performance; Internal cause by flooding degree, oil-water properties, petrological character, sedimentology nature place is formed. Water flooded degree is the effect of water production rate is one of the important factors, water flooded degree prediction is water production rate prediction foundation. Logging method is mainly the commonly used method, relative to character, the strengths of the logging methods directly, can get hydrocarbons quantity and type of direct information, especially fluorescent chip can directly observed the core oil-water distribution of information, but its production method by restricting fidelity degree. The object of logging observation is sidewall coring, core or debris, and therefore obtained data only reflects the near borehole wall, and the situation cannot directly reflect the overall condition of reservoirs, which affects the flood of water production rate of whole largely reservoir flood degree. Therefore the establishment appraisal sidewall between information and reservoir of the corresponding relationship between information method, the method is to determine the effectiveness of the key water flooding degree evaluation of one. Different water flooded degree will leave traces in cores in shaft, including oil, oil changes in the composition of the pore microscopic changes mode of occurrence, this also is the logging methods to evaluate water flooded degree of theoretical basis.This paper established the sidewall information and reservoir information, the relationship between the choice material rich Wells of typical analysis, this kind of Wells should have produce layer profile of the multi-point take heart and fluorescence chip material, also have reservoir sedimentology, petrology and pore structure and other basic results. Through to instaurate mechanism, and the degree of logging, fluorescence observation relationship between discussed in detail, the part of different water flooding will be under the condition of crude oil, degree of the change, the changes in contents of characteristic compounds; Using fluorescence observation, hoping to quantitative analysis of different components of the oil in the pores in the change rule of occurrence way, and this kind of change and the relationship between the pore structure; And according to oil, water, rock are theory to explain the chemical and physical properties; Establish relevant model and calibration related parameters.Water for conventional water flooding conditions, geochemical parameters submergence degree and fluorescence parameters and producing fluid moisture content relationship and the establishment of physical model parameters calibration, formulate the corresponding software to realize calculation.The above reference logging technique in evaluation moisture content research achievements of based on percolation mechanics, and make full use of the connotation of the information and combining the logging petrography, petrophysical property material. The logging technology because of the direct determination of the hydrocarbon reservoir properties, especially gas chromatography and fluorescence chip technology, greatly expanded use of this technology in the recognition ability.