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The variation of boiling point with the number of carbon atoms has been determined for ten homologous series of mononuclear aromatic hydrocarbons. The equation for this relation is in the form: ta log (nc + 4.4) + k. The variation of the difference in boiling point

T h e inolecular *olunies of 1-phenylalkanes and 2-pheii) 1-alkanes at any @\en fraction of the critical temperature are linear functions of the nuniber of carbon atoms. RIolecuIar\ olunies of fourteen homologous series of mononuclear aromatic h>drocarbons at 20' C. are also linear functions of the number of carbon atonis. Both of these relationships may be expressed by equations of the forni : M / d = V = a -+ bn Constants a and b are simple functions of the reduced temperature. These functions may be expressed by equations of the form :study reported her<% correlates existing density d:ita THE with structure for fourteen homologous series of mononurlcar aromatic hydrocarbons, and thus provides n method for cstirnntiug the molecular volumes (molecular weiplit divided by t1r:nsity) and densities of unknown or unmcasurctl Incmhcrs of t h r serica.('omparison:: of moleuuinr volumes must he m:i& a t specified temperatures berause of the variation of density with tempcrature. Compari3ons niny be made a t u constant tempcrnturc,, such as 20" C,. ( 1 , 2 , Y,, 9, 10, 12, 13, 16, 18), or at characteristic tcmperatures wi>h :ID the boiling point (6, 1 4 ) , the melting point (8,16), or a yivisn fraction of the c?itical temperature. 'rhc 1;ittcr is preferred ( 5 ) when thc necessary dnta :w available.The studies already published arc. concerned principally with aliphatic and alicyclic compounds. The present corrclation was carried out for fourtt.c.11 homologous series of arom:itic 1Iydroc:irbons a t 20' c.nncl for tvio series a t corre--1)oncling reduced temperatures (fr.ictions of the critical templXr:ltures). By both of these nwthods the molecular volume IY:IS found t o 1,c :In ntlditirc function oi thc. iiunit)i,1, cJi' w rt,oil atom-\vitllin :i I~OIY.O~OKOLIS .-i.ries. This 1elation>nip may I W c*spressud LIT 1 II(' c~qmitiori

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Australia can anticipate a more extensive gas production future than any other OECD country. At the same time, much of our gas resource is SESSION 1B-INNOVATIVE APPROACHES TO ENGINEERING AND PETROLEUM PRODUCTION located in large, remote, deepwater reservoirs. There is very little experience in bringing such fields to market, although several current developments internationally indicate that a new era of deepwater gas production is beginning. The limited knowledge base suggests that Aus-tralia could, and indeed should, take a lead in developing strategies and technologies necessary to produce major deepwater gas and gas-condensate fields in an economically , environmentally and socially sustainable manner in the long-term. This paper draws on a comprehensive database of deepwater field developments around the world to identify specific capability gaps, and the technology breakthroughs that may enable them to be overcome. Emphasis is placed on both floating facilities and all-subsea production solutions, with ultra-long tiebacks and floating LNG bringing particular benefits in the Australian context. Compact GTL is a key enabling technology for remote deepwater fields with associated gas. This paper addresses the feasibility of developing an ultra-deepwater gas field by producing directly from subsea wells into Compressed Natural Gas (CNG) Carrier ships. Production interruptions will be avoided as two Gas Production Storage Shuttle (GPSS) vessels storing CNG switch out roles between producing/storing via one of two Submerged Turret Production (STP) buoys and transport CNG to a remote offloading buoy. This paper considers the challenges associated with a CNG solution for an ultra-deepwater field development and the specific issues related to the risers. A Hybrid Riser Tower (HRT) concept design incorporating the lessons learned from the Girassol experience allows minimisation of the vertical load on the STP buoys. The production switchover system from one GPSS to the other is located at the top of the HRT. High-pressure flexible flowlines with buoyancy connect the flow path at the top of HRT to both STP buoys. System fabrication and installation issues, as well as specific met ocean conditions of the GOM, such as eddy currents, have been addressed. The HRT concept can be also used for tiebacks to floating LNG plants. Geodynamics Limited is nearing the completion of its 'proof of concept' hot fractured rock (HFR) program to extract superheated hot water for electricity generation from granite buried beneath the Cooper Basin. Difficult drilling conditions were discovered in the target granite when the Habanero-1 well penetrated permeable sub-horizontal fractures at more than 4,000 m depth. The well was completed at 4,421 m with overpressures in the fractures around this depth exceeding pressures projected from a hydrostatic gradient by more than 5,000 psi. The static rock temperature at the bottom of the well is about 250°C. The composition of reservoired petroleum is controlled by the physical, chemical and biologi...