The new method of seismic attributes extraction and fault detection based on the rotating rhombus method

The conventional methods of attribute extraction and calculation have many limitations for complex low level faults. Therefore, we propose a new method of seismic attribute extraction based on the rhombus that can be arbitrarily rotated and regulated its axis which achieves a satisfactory result on the application of fault identification. Research shows that: 1) the attributes extracted by rotating rhombus have better ability of direction identification, and it is particularly suit to identify the fault and fracture zone; 2) the attribute extracted by rotating rhombus its major to minor axis ratio is 5:2 has the best resolution; 3) we can extract a variety of amplitude and energy attributes by using the method, among which the total absolute amplitude attribute or total energy attribute is better for fault description; 4) our method has a good noise immunity, which can extract accurate direction attribute if the SNR is greater than 1, which can completely fulfill the require of data interpretation; 5) the method can also be used to quantitatively identify the shattered fault zones.