Published March 2010

Wells development and exploitation monitoring via Jini-Lorenz method

I.Z. Ahmadov

Y.I. Madatov

The paper is devoted to research of oil and water flows equality as well as estimation and monitoring of whole formation system hydrodynamic state. The possibility for constant control of processes going on formation system in purposes to set the rational development and exploration of oil fields is shown in paper. Examination of production distribution laws and water-oil relations in wells have been conducted on the basis of Jini-Lorenz coefficients, calculated using available data from fields and Production Department in whole. Generally distribution values have been involved into tables. By means of these data and computer software the Lorenz plats have been built. The analysis results for fields showed considerable inequality of water distribution on Jini-coefficient in comparison to oil distribution. It marks the general geological heterogeneity layers and some uncertainty of technological processes in considered parts of oil field. Calculations of relative Jini-Lorenz coefficients featured the inequality of oil and water relations showed the differences in separate fields. For example, according to the calculations exploration conditions of first and secnd fields are better. This is confirmed by coming up relative coefficients to known “gold section” which conforms to very optimal relation oil and water production in heterogeneity conditions. Results of analysis on the basis of Jini-Lorenz method is opportunity for good estimation state of oil fields development and exploitation and for decision making in purpose optimization.