Determination of well spacing in reserve estimation by well spacing weighting method

The reserve volume of the reservoir can be estimated by using the well spacing weighting method. This method holds that the weighted value of the observed data has something to do with the density of the observing spots: where the observing spots are more, the weighted value of the observed data is small; where the observing spots are fewer, the weighted value of the observed data is great. The key problem is how to calculate the weighted value of each observed data. The weighted value is usually defined as the space of the area controlled by the observing spots. This method is characterized by resolving the complex boundary problem into several simple problems to be solved. In this way, the reserve of a reservoir having complex structure can be calculated. This method has been realized on the computer and has been applied in oil production.