05.07.2009

The hole is advanced by turning sections of auger casing, called auger flights, into the subsurface. Rotating of the auger flights carries the soil to the surface. This method is most effective when used in stable soil conditions which are generally free from cobbles and boulders. The advantages of this method are that the hole is drilled and cased simultaneously, and the hole can be advanced without the introduction of fluids. Some of the disadvantages are that drilling difficulty significantly increases with depth and the auger flights must be removed from the hole without rotating to avoid damaging the installed instrument.

A company that confines its activities to owning stock in and supervising management of other companies. Holding companies are relatively common in newly deregulated markets of all types. New regulations in the energy industry, designed in part to stimulate competition for energy services, have forced many vertically integrated utilities to restructure themselves or sell off assets, and many of these utilities have chosen to set up holding companies in regions where regulators have allowed them to do so.

Hoarding of capacity in LNG terminals by speculators is a known phenomena as well as the tendency by major energy companies to book for themselves capacity in a large number of regasification terminals in order to be able to direct their LNG shipments towards markets where spot prices are higher at any particular time. This prevents those entities that are interested to import LNG by use of the facility from doing so, since they do not own any of the available capacity. Anti-hoarding clauses are characterized by a considerable variety of specific provisions. They are mainly in the form of UIOLI with either an ex ante or an ex post effect. In an ex ante system, each slot that is not used by the capacity holder must be offered to the market. In an ex post system, the extent of unused slots is afterwards taken to indicate changes that need to be made for future capacity allocation: Should the terminal user that has reserved capacity on the terminal not use a certain amount of it for a certain period of time, the booked future capacity (or a part of it) will be lost

Official written brief of the drilling and other activities carried out on a well