TECHICAL Series MATHEMATICS • INFORMATICS • PHYSICS Series PHILOLOGY Series ECONOMIC SCIENCES Sereies EDUCATIONAL SCIENCES Series LAW AND SOCIAL SCIENCES Series
Increasing Oil Reserve Using Secondary
(* Petrom S.A.- Divizia E&P, Ploieşti e-mail: nicolae.trasca-chirita@petrom.com ** Universitatea Petrol-Gaze din Ploieşti)
Vol LX • No. 4/2008
Nicolae Traşcă - Chiriţă*, Constantin Popa**, Mihai Ciprian Baciu*
* Petrom S.A.- Divizia E&P, Ploieşti
e-mail: nicolae.trasca-chirita@petrom.com
** Universitatea Petrol-Gaze din Ploieşti

 Keywords   secondary oil recovery, oil reserve, water injection, steam injection, thermal methods

 Abstract
The paper presents some secondary methods applied in Romania to increase the oil recover. Special attention is given to chemical and thermal methods, injection of microbial solutions, mining, CO2 injection and horizontal drilling. The paper put in evidence the very good results obtained in the application of thermal methods. The paper presents also the problems and difficulties met during the secondary recovery process implementation and development and the solutions applied to solve them.
The last chapter of the paper presents the perspectives of using in the next future some of these methods in Romania. Depending on the new technical and economical conditions there are very good perspective for water injection and for steam injection.

 Rezumat
Aplicarea metodelor de recuperare secundară a ţiţeiului constituie o soluţie sigură de creştere a rezervelor şi de intensificare a exploatării zăcămintelor de ţiţei. De aceea în România s-au realizat numeroase cercetări teoretice şi de laborator, precum şi experimente de şantier privind aplicarea metodelor de recuperare secundară, respectiv metodele chimice (injecţia de soluţii micelare, de polimeri şi de soluţii alcaline sau tensioactive), metodele termice (combustia subterană, injecţia de abur şi injecţia de apă fierbinte), injecţia de CO2, metodele petrominiere, metodele microbiologice, injecţia de azot, forajul orizontal şi altele. Cele mai spectaculoase rezultate au fost obţinute prin combustie subterană care a fost aplicată la 26 zăcăminte de titei din Romania.
Dupa un scurt capitol introductiv, în lucrare este prezentat potenţialul de creştere a rezervelor de ţiţei pentru principalele metode de recuperare, precum şi câteva realizări romaneşti în acest domeniu. In capitolul final sunt prezentate unele zăcăminte din Romania la care se pot aplica în viitor metode de recuperare secundara.



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