•  
  •  
 

Abstract

Based on geological and technological factors, it is necessary to take into account the gas extraction coefficient when calculating reserves for gas and gas condensate fields. The increase in gas reserves should be drained only by recoverable reserves, which most realistically reflect the availability of resources for the oil and gas industry. The purpose of the work. Analysis of the dynamics of the development of the Surgil, East deposits.Berdakh-Uchsay, Urga with the whole determination of the final volume of drained gas reserves, the assessment of the gas recovery coefficient and the development of a recommendation on the methodology for determining the gas recovery coefficient at the fields, with surocheins to the Jurassic erogenous deposits. The gas extraction coefficient estimated according to the data of the Ustyurt field development now is clearly underestimated in comparison with the well-known ones according to literary sources for sand-clay reservoirs. Therefore, it becomes an urgent task to estimate the maximum possible volume of gas extraction and estimate the gas recovery coefficient. The magnitude of the gas output of productive erogenous reservoirs developed in the natural mode significantly depends on: the reliability of determining the initial hydrocarbon reserves, the efficiency of the selected development system; lithological features of the reservoir structure; the uniformity of the structure of the reservoir pore space in terms of deposit area and section; the consistency of reservoir layers in terms of power and the uniformity of their interlayers in terms of FEZ. According to these factors, the acamu changes the final gas output of the deposits.

The criterion in this case was the data of the reserves assessment using the pressure drop method, showing how much of the initial reserves is involved in drainage and how it changes during operation. The results of the work and conclusions. The extracted gas coefficient, being a purely economic concept, will be determined either by the results of hydrodynamic studies or empirically by the results of the development of deposits similar to the one being studied. A certain amount of gas due to the heterogeneity of the filtration and reservoir properties of the reservoirs remains in their small pores or depends on technological factors associated with a drop in reservoir pressure to a critical level-further development of the deposit becomes unprofitable. Thus, the coefficient of extraction of gas deposits in various conditions associated with either a geological or technological factor becomes lower than one.

First Page

97

Last Page

108

References

  1. A.A. Abidov., I.Kh. Khalismatov., I.P. Burlutskaya. Calculation of recoverable natural gas reserves in hydrocarbon deposits – the basis for the introduction of resource - saving development technologies. “Problems of energy and resource conservation”, 2005. 31.
  2. G.S. Abdullaev., D.R. Hegai., M.G. Yuldasheva. Determination of the direction of prospecting and exploration for oil and gas in the Ustyurt region in the conditions of a shortage of the fund of prepared oil and gas prospective objects. International scientific and practical conference. “Theoretical and practical aspects of oil and gas geology of Central Asia and ways to solve modern problems of the industry”,2009. 71.
  3. I.P. Burlutskaya., I.Kh. Khalismatov., I.V. Ogorodnikov., A.B. Allamuratov. Some features of the geological structure of the Urga deposit. “Oil and Gas”,2001. 14.
  4. E.Y. Begmetov., I.Kh. Khalismatov., S.Y. Gom. On the improvement of geological exploration in the Ustyurt region due to the complexity of the geological structure of the deposits (on the example of the Berdakh-Uchsay field). International scientific and practical conference. “Theoretical and practical aspects of oil and gas geology of Central Asia and ways to solve modern problems of the industry”,2009. 102.
  5. A.K. Karimov., I.Kh. Khalismatov., A.S. Smanov. Analysis of geological and geophysical materials and generalization of the results of the development of fields of the Ustyurt oil and gas regions in order to clarify the final gas output. “Uzbek journal of oil and gas”,2008. 78.
  6. I.A. Sultanov. Gas output is one of the main indicators of the efficiency of field development. “Journal oil economy”,2001. 17.
  7. Z.H. Samanov. The regularity of the distribution of reservoir rocks in the Jurassic sediments of the Southern Aral Sea region. // International scientific and practical conference. “Theoretical and practical aspects of oil and gas geology of Central Asia and ways to solve modern problems of the industry”, 2009. 69.
  8. M.M. Ivanova. “Oil and gas field geology”,2001.
  9. U. Lerner., D. Mitchell. On the issue of gas recovery of gas-bearing erogenous reservoirs in the Perm province. “Oil and gas magazine magazine”,2002. 81.
  10. I.K. Tarasenko., V.N. Tusev. The problem of gas from the producing. “Sandstone reservoirs proceedings of international best practices”,2005.
  11. X. Halimatou., I.P. Burleska.,O.S. Sagaydachnogo. Analysis of geological and geophysical data and results of the development of oil and gas fields in the Ustyurt region in order to clarify the ultimate gas recovery. International scientific and practical conference. “Theoretical and practical aspects of oil and gas geology of Central Asia and ways to solve modern problems of the industry”,2009. 122.
  12. I.Kh. Khalismatov., A.A. Abidov., T.L. Babadzhanov.“Methodological recommendations for the assessment of the final gas output of complexly constructed productive erogenous reservoirs”,2009.
  13. I.Kh. Khalismatov., I.P. Burlutskaya., S.Y. Gom. Determination of the gas recovery coefficient of terrigenous reservoirs at the stage of prospecting works. “Scientific and technical journal problems of energy and resource conservation”, 2009. 80.
  14. I.Kh. Khalismatov., I.P. Burlutskaya., S.Y. Gom.,N. Botirova. Determination of the gas recovery coefficient of terrigenous reservoirs at the stage of field exploration and development design. “Uzbek journal of oil and gas”, 2010. 76.
  15. I.Kh. Khalismatov., R.T. Zakirov., Z.Sh. Agzamov., Y. Saakova. Evaluation of the final gas output of terrigenous productive and composite uses of probably statistical methods international scientific and practical conference. “Word science expo 2020 methodology of modern research”, 2016.
  16. N.Sh. Khayitov., L.P. Sharofutdinova., G.G. Jalilov. Types of sections of Jurassic deposits of Ustyurt and the zonality of their distribution. International scientific and practical conference. “Theoretical and practical aspects of oil and gas geology of Central Asia and ways to solve modern problems of the industry”,2009. 69.

Download

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.