fax 01-972-952-9435.References at the end of the paper. AbstractIn 1997, Statoil and Halliburton Energy Services, Inc. began jointly evaluating technologies that could be used to develop a revolutionary coiled-tubing and well-intervention system. This system, which will be deployed initially in the Norwegian sector of the North Sea, sets a new standard for drilling with conventional drilling rigs or coiled-tubing drilling units. The advanced well-construction system consists of a digitally controlled and automated coiled-tubing drilling system that uses a new advanced composite coiled tubing (ACCT) with embedded wires and a tractor-driven bottomhole assembly (BHA). This system enables the geological steering of complex, extended-reach wellpaths that were not previously achievable.This paper discusses a joint development project in which the operator and the service company worked together to design a fit-for-purpose system that met Norways stringent health, safety, and environment (HSE) requirements. The systems three major subsystems are discussed: the digitally controlled and automated surface equipment, the 2 7 /8-in. ACCT with embedded wires, and the drilling and intervention BHA. Test results from qualification and pilot wells are also included.

Copyight 1997. Offshore Technology ConferenceThe costs for these horizontal and deviated well This p p r was p p r e d for pesehtion at (he 1-7 Offshore Technology Conference heid intervention operations with coiled tubing or snubbing are in Horntm, Texas, 5-0 M8y 1997. excessive and in manv cases o~erations such as uroduction This paper m s s d e d for m o n h t l o n by (he OTC Prognm Commitbe folldng r d m d Informdon conblned In an a b s W 8 d 8 u b m~ by (he ~uUI WS). Contents of (he pw. as pewnted, haw not been r d d by (ha On+hora Techndogy Conf-a and are suqed to comedon by (he UJUI~(~). The m.MIal. a8 pment.d, doe8 not mce8urlIy roiled any posiUon of (he On+ha. Techndogy C o n f u m a or It8 olfican. flecbonlc repmducllon, dsMhmon, or storage d any pfl of (his paper for comrnerdal pispores wlthwt (he mttlen consent d (he Offshore Techndogy Conferma I8 pohlbltad. Pwml8don to rapoduce in plnt is restricted to an a W a d of not more than 300 word*: Illusbatlau may not be copied. The abrblcl mud conbin c a u p i c w~ ackndecbment d whera and by whom (he pper m. pesmnted. AbstractThe wireline Well Tractor