In the method of drawing up the map of excavation possible area in the oil field without encountering to

摘要

(57) Abstract Is a possibility of existence of abnormal area the lower limit energy threshold value which is thought that this cartography executes earthquake record collection, as each element cell includes the sample (k) of central earthquake trace (TRij), is recorded, constructs the 3D earthquake block (X, Y and T) which is sampled in element cell (Cijk) condition from the earthquake trace which calculates the energy concerning each element cell (Cijk), of this earthquake block to specify, equality to this threshold value or to select the cell of the block which possesses the energy above this, this wayThe cord/code is attached to the cell which is selected, all cells which belong to the identical assembly body of the contiguity cell which is selected to this occasion have the identical cord/code, in order to possess the cord/code where all cells which belong to the separate assembly body of the contiguity cell which in addition is selected differ, form, execute the XY projection of block of the cell which can attach the cord/code, it is.