Deposition of fluvial sandbodies is controlled mainly by characteristics of the system, such as the rate of avulsion and aggradation of the fluvial channels and their geometry. The impact and the interaction of these parameters have not received adequate attention. In this paper, the impact of geological uncertainty resulting from the interpretation of the fluvial geometry, maximum depth of channels, and their avulsion rates on primary production is studied for fluvial reservoirs. Several meandering reservoirs were generated using a process-mimicking package by varying several controlling factors. Simulation results indicate that geometrical parameters of the fluvial channels impact cumulative production during primary production more significantly than their avulsion rate. The most significant factor appears to be the maximum depth of fluvial channels. The overall net-to-gross ratio is closely correlated with the cumulative oil production of the field, but cumulative production values for individual wells do not appear to be correlated with the local net-to-gross ratio calculated in the vicinity of each well. Connectedness of the sandbodies to each well, defined based on the minimum time-of-flight from each block to the well, appears to be a more reliable indicator of well-scale production.

With the opening up of commercial ports in riverside cities such as Chongqing more than one hundred years ago, many Western missionaries gradually went deep into Yunnan, Guizhou and Sichuan areas and compiled several local language textbooks for later generations, which also provided valuable materials for dialect scholars to study Southwest Mandarin a hundred years ago. The author specifically analyzes on the basis of spoken examples in books written in West Sichuan dialects and Sichuan dialects dictionary, as well as in the four major administrative regions of

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