摘要:

Hydroliquefaction behavior of α-cellulose, leonardite, four lignites, and two subbituminous coals suspended in an anthracene oil carrier has been investigated in the presence of Co-Mo/Al2O3catalyst at 425°C and at an average pressure of 1,300 psig in a batch reactor for 30-min reaction time. Both total conversion of moisture-ash free solids and total yield of liquid products were greater for all but one of the lignites than for the subbituminous coals. Partial demineralization by HCl washing decreased both the total conversion of and pentane-soluble oil yield from lignites. It had relatively little effect on subbituminous coals. Although cellulose was almost completely converted to liquids and gases, no pentane-soluble oils were produced.

ISSN:0090-8312    

DOI:10.1080/00908318308908071

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

As a part of a wider study of the hydraulic properties of Upper Cretaceous chalk from East Yorkshire and the North Sea, a method of pore space casting is being employed. Thus, with the aid of the Scanning Electron Microscope it is possible to obtain by direct visual observation information about the shape and size of pores and grains, the connectiveness and roughness of pore channels, the presence of clay and silicate minerals, and other factors that together control fluid flow in porous rocks. A more detailed understanding of the nature of hydrocarbon or water-bearing rock is becoming increasingly important in pursuance of studies of oil exploration, oil exploitation, and geotechnics. In this paper a method of impregnation and casting the pore space in chalk is described, together with some preliminary observations of chalk pore geometry.

ISSN:0090-8312    

DOI:10.1080/00908318308908072

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

This brief note describes the probabilistic structure of the Arps/Roberts (A/R) model of petroleum discovery. A model similar to the A/R model is derived from probabilistic propositions demonstrated to be similar to the Barouch/ Kaufman (B/K) model, and also demonstrated to be similar to the Drew, Schuenemeyer, and Root (D/S/R) model. This note attempts to elucidate and to simplify some fundamental ideas contained in an unpublished paper by Barouch and Kaufman.1This note and its predecessor paper4does not attempt to address a wide variety of statistical approaches for estimating petroleum resource availability.3Rather, an attempt is made to draw attention to characteristics of certain methods that are commonly used, both formally and informally, to estimate a petroleum resource base for a basin or a nation. Some of these characteristics are statistical, but many are not, except in the broadest sense of the term.

ISSN:0090-8312    

DOI:10.1080/00908318308908073

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

One of the primary functions of drilling mud is to remove the cuttings from the bottom of the hole as the well is drilled. This paper reviews methods for estimating an acceptable minimum annular velocity to remove these cuttings.

ISSN:0090-8312    

DOI:10.1080/00908318308908074

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

The possibility of interfuel substitution in the generation of electrical energy exists. Given this fact, a demand model for various fossil fuels by electric utilities in the United States is developed. Using regional data, the results suggest that the responsiveness of the demand for coal, residual fuel oil, distillate fuel oil, and natural gas by electric utilities to relative price changes is significant. In a forecasting setting, the demand model performs remarkably well when actual and forecast values for 1979 are compared.

ISSN:0090-8312    

DOI:10.1080/00908318308908075

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

Extensive research work (examination of 161 limestone, dolomitic limestone, calcitic dolomite, and dolomite cores) on wettability of carbonate reservoir rocks by the writers indicate that 15 percent of these rocks are strongly oil-wet (θ = 160°-180°; some are bitumen coated), 65 percent are oil-wet (θ = 100°-160°), 12 percent have intermediate wettability (θ = 80°-100°), and 8 percent are water-wet (θ = 0°-80°). These results on carbonate reservoir rock cores from all over the world show that the majority of carbonates are oil-wet.

ISSN:0090-8312    

DOI:10.1080/00908318308908076

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

ISSN:0090-8312    

DOI:10.1080/00908318308908077

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor