A hand-held, electronic, bi-directional, wireless electronic communication device having a physical configuration which includes a relatively large, constantly visible display and an alphanumeric keyboard that can be concealed until needed. The present invention includes a number of innovative methods for developing workspace for drilling from a shaft installed above, into or below a hydrocarbon deposit, particularly when the hydrocarbon reservoir is at significant formation pressure or has fluids that can enter the workspace. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. A valve stem is pivotally mounted at a stem pivot spaced radially from the fluid passage. The present invention also relates to a process of preparing DNA labeling compound. The variable focus spectacles comprise a spectacle frame and at least one variable power lens.