Application of VSP technology in the C37-6 well drilling

With the seismic prospecting developing into the complex and difficulty area, it is highly requested for structure interpretation. Calibration of horizon by the normal AC log usually can't correspond with through-well seismic profile, especially in the complex aloft-steep structure whose transverse velocity changes greatly, it is very easy to cause underground structure distort. It can exactly calibrate horizon of complex aloft-steep structure, confirm structural feature and location of fault point by the multi-azimuth VSP technology. The article illustrate the significance of technology in the objective argumentation of complex structure loss well sidetrack drilling through analysis the successfully application of C37-6 well area in the LW buried structure in East SiChuan basin.