TECHICAL Series MATHEMATICS • INFORMATICS • PHYSICS Series PHILOLOGY Series ECONOMIC SCIENCES Sereies EDUCATIONAL SCIENCES Series LAW AND SOCIAL SCIENCES Series
The Dependency Relations Between the Formation Factor and the Tortuosity
(* Universitatea Petrol-Gaze din Ploieşti, B-dul Bucureşti nr. 39, Ploieşti e-mail: imalureanu@upg-ploiesti.ro ** Schlumberger Romania e-mail: MGoanta@bucharest.oilfield.slb.com)
Vol LX • No. 4/2008
Ion Mălureanu*, Monica Mihai**
* Universitatea Petrol-Gaze din Ploieşti, B-dul Bucureşti nr. 39, Ploieşti
e-mail: imalureanu@upg-ploiesti.ro
** Schlumberger Romania
e-mail: MGoanta@bucharest.oilfield.slb.com

 Keywords   formation's factor resistivity, resistivity of the formation, true rezistivity, water rezistivity, porosity, water saturation, tortuosity , capillary channel

 Abstract
The formation resistivity factor, F, is determinated by porosity and tortuosity. Diferent modeles using for determinating formation factor are over simplifications for a complex sistem capillaries. In this paper is studied the relationship between formation factor and tortuosity using a very simple model, but with conclusion interesting.

 Rezumat
Factor de rezistivitate al formaţiei este determinat de porozitate şi de tortuozitate. Tortuozitatea este o proprietate petrofizică care nu poate fi determinată în laborator. De aceia factorul de rezistivitate al formaţiei pe scurt factor de rezistivitate a fost în general determinat pe baza măsurătorilor de laborator. În această lucrare s-a încercat o analiză a dependenţei factor de formaţie ? tortuozitate pe un model simplificat şi aspecte teoretice.



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