Method of analysing seismic data to detect hydrocarbons

A method of prospecting for hydrocarbons, the method comprising:

• analysing seismic data to determine a possible location of hydrocarbons by determining a set of data tiles from a seismic data cube of seismic data;
• and
• testing each data tile in the set of data tiles to determine whether it corresponds to a possible fluid contact;
• wherein determining a set of data tiles from a seismic data cube of seismic data comprises:
• (i) defining a sub-cube with a lateral size of a tile and comprising a plurality of traces;
• (ii) selecting a tile candidate in the sub-cube, the tile candidate having an associated depth and dip;
• (iii) summing all of the traces in the sub-cube into a single trace along the dip;
• (iv) repeating steps (ii) and (iii) for all tile candidates in the sub-cube;
• (v) confirming a tile candidate as a tile if the summed single trace shows a local amplitude maximum with respect to depth and dips;
• and
• (vi) if a tile candidate is confirmed as a tile, storing the tile in a memory;
• the method further comprising:
• outputting a set of possible locations of hydrocarbons corresponding to one or more locations of fluid contacts;
• and
• drilling for hydrocarbons at at least one of, or at a location within, the output set of locations.