摘要:

Displacement tests to date of oil field core with alkaline solutions at reservoir temperature show low tertiary oil recovery. Inadequate mobility control is singled out as the reason for such poor recovery. To test the validity of this reasoning, a laboratory study was undertaken in which a high heat resistant polymer was used as the mobility control agent in a hot alkaline solution recovery technique.

ISSN:0090-8312    

DOI:10.1080/00908318808908913

出版商:Taylor & Francis Group    

年代:1988

数据来源: Taylor

摘要:

Major stages of transformation of dispersed organic matter in sediments and sedimentary rocks during catagenesis are discussed. The paper mainly represents an historical review of views held by Soviet petroleum geologists and geochemists through 1981. The views and theories of N. B. Vas-soevich (whom the authors consider to be a giant of geology) on organic origin of petroleum are presented in detail.

ISSN:0090-8312    

DOI:10.1080/00908318808908914

出版商:Taylor & Francis Group    

年代:1988

数据来源: Taylor

摘要:

A circumferential acoustic logging instrument that operates at a radial mode resonance of 120 kHz utilizes opposing pairs of acoustic transmitters and receivers mounted on pad assemblies, which are pressed against the borehole wall. An important feature of the instrument is a baffle system which effectively minimizes the propagation and reception of the direct fluid wave. The incorporation of the baffle allows both types of boundary waves, the Rayleigh and the guided fluid wave, to be more easily recognized.

ISSN:0090-8312    

DOI:10.1080/00908318808908915

出版商:Taylor & Francis Group    

年代:1988

数据来源: Taylor

摘要:

Most attempts at numerical synthesis of vertical seismic profiles ( VSPs) do not explicitly include the interaction of seismic waves with the borehole, the casing, or instruments located within the hole. Thus, borehole resonances, a type of tube wave that is prominent in many real VSPs, are typically missing in synthetic VSPs. Characteristics of generation and propagation of borehole resonances can be studied by including details of the borehole environment in acoustic and elastic finite-difference simulations. Specific models presented incorporate a variety of hole diameters, cased and uncased holes, the presence of geophones within a hole, a variety of source positions, the effects of local changes in hole diameter and lithology, and the mutual interaction of the response of two neighboring wells. The main conclusion is that the hole and the medium should be considered as a single coupled system as there is a continuous mutual transfer of energy between them.

ISSN:0090-8312    

DOI:10.1080/00908318808908916

出版商:Taylor & Francis Group    

年代:1988

数据来源: Taylor

ISSN:0090-8312    

DOI:10.1080/00908318808945379

出版商:Taylor & Francis Group    

年代:1988

数据来源: Taylor

ISSN:0090-8312    

DOI:10.1080/00908318808945380

出版商:Taylor & Francis Group    

年代:1988

数据来源: Taylor