operational update 7/11, page-3

our friends at Google helped me out with a description of a "whipstock":

"A long steel casing that uses an inclined plane to cause the bit to deflect from the original borehole at a slight angle. Whipstocks are sometimes used in controlled directional drilling, in straightening crooked boreholes, and in sidetracking to avoid unretrieved fish".

glta holders
brownie