Tectonic features of Miocene sediments in South-West Apsheron formed as a result of a interaction between Submeridional and Common Caucasian folding movements. Meridional and circular folding predominates in South-West Apsheron. The forming of circular folding is a result of weakening intensity of Common Caucasian folding and cosedimentation development submeridonal folding simultaneously. The local structures of the West Apsheron in many cases occur by the diaper structures, which are complicated by the mud volcanoes. The forming these kind of structures related with big thickness Paleogene-Miocene plastic shales and intensities of folding movements.

Keywords: Geology; Tectonics; Lithology; Litophase; Stratigraphy; Structure; Raising; Sedimentation; Deposit; Hydrocarbon; Trap; Organic matter; Oil-gaz mining; Perpective; Clay; Paleogen-Miosen; Maykop.

References

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5. N.S.Kastrulin, S.B.Mamedov, A.A.Efendiev, F.M.Salimov. Perspektivy neftegazonosnosti Paleogen-Miocenovyh otlojeniy Zapadnogo Apsherona I ocherednie zadachi poiskovo razvedochnogo bureniya //Azerbaijan Oil Industry. -1991. –No.8. –S.1-7. 
6. A.M.Suleymanov, R.L.Zeynalov, B.I.Maherramov. The regional and local tectonic regularities of the Paleogen-Miocene deposits of the Western Apsheron //Scientific Works of AzSSRP Institute of Oil and Gas Industry. -2004. -№3. -S.55-63.
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8. A.M.Salmanov, B.I.Magerramov, R.M.Guseynov. Estimation of oil and gas prospects of Western Absheron Oligocene-Miocene sediments based on paleogeology analysis //Azerbaycan oil industry. -2011. –No.3. -P.3-11

The results of the studies presented are aimed at the increase of the service properties of rock cutting elements for drill bits. The structure, mechanical and three-biological properties of the composite material of C_diamond-WC-Co-CrSi₂ were studied. It was determined from the samples that the drill inserts of C_diamond-WCCo-CrSi₂ 4.3 higher abrasive wear resistance than the ones of C_diamond-WC-Co. There is a mechanism installed, that ensures increase of the three-biological properties of such composites.

Keywords: Diamond; Wolframcarbide; Cobalt; Silicide chromium; Wear resistance.

References

1. N.V.Novikov, N.A.Bondarenko, A.N.Zhukovsky, V.A.Meсhnik. The effect of diffusion and chemical reactions on the structure and properties of drill bit inserts. 1. Kinetic description of systems Cdiamond - VK6 and Сdiamond(VK6-CrB2-W2B5) // Physical Mesomechanics. -2005. -Vol.8. –No.2. -P.99-106.
2. N.V.Novikov, N.A.Bondarenko, A.N.Zhukovsky, V.A.Meсhnik. The effect of diffusion and chemical reactions on the structure and properties of drill bit inserts. 2. Evaluation results for the structural state of superhard materials of composition diamond - hard alloy VK6 //Physical Mesomechanics. -2006. -Vol.9. –No.2. -P.107-116.
3. N.A.Bondarenko, V.A.Meсhnik. The influence of transition area diamond-matrix on wear resistance and operation properties of drilling tool produced by ISM //SOCAR Proceedings. -2011. –No.2. -P.18-24.
4. N.A.Bondarenko, A.N.Zhukovsky, V.A.Mechnik. Osnovy sozdaniya almazosoderzhachih kompozicionnyh materialov dlya porodorazrushayuchih instrumentov. K.: ISM im.V.Bakulya NAN Ukrainy, 2008.
5. V.A.Aleksandrov, N.A.Alekseenko, V.A.Mechnik. Issledovanie silovyh I energeticheskih parametrov rezki granite almaznymi diskovymi pilami //Sverhtverdye materialy. -1984. -№ 6. –S.35-39. 
6. N.A.Bondarenko, V.A.Mechnik. Drilling oil and gas wells by ISM diamond tools //SOCAR Proceedings. -2012. –No.3. -P.6-12.
7. N.A.Bondarenko, A.N.Zhukovsky, V.A.Mechnik. Analysis of the basic theories of sintering of materials. 1. Sintering under isothermal and nonisothermal conditions (a review) //Journal of Superhard Materials. -2005. –No.6. -P.3–17.
8. N.A.Bondarenko, A.N.Zhukovsky, V.A.Mechnik. Analysis of the basic theories of sintering of materials. 2. Chemical reactions and nucleation processes. Basic principles of the simulation of sintering of superhard composite diamondcontaining materials (a review) //Journal of Superhard Materials. -2006. –No. 1. -P.3–15.
9. M.O.Bondarenko, V.A.Mechnik, M.V.Suprun. Shrinkage and shrinkage rate behavior in Cdiamond-Fe-Cu-Ni-Sn-CrB2 system during hot pressing of pressureless-sintered compacts //Journal of Superhard Materials. -2009. -Vol.31. –Nо.4. -P.232-240.
10. N.A.Bondarenko, N.V.Novikov, V.A.Mechnik et al. Structural peculiarities of highly wear-resistant superhard composites of the diamond–WC-6Co carbide system // Journal of Superhard Materials. -2004. –No.6. -P.3-15.
11. V.А.Mechnyk. Diamond−Fe–Cu–Ni–Sn composite materials with predictable stable characteristics //Materials Science. -2013. –Vol.48. -Issue 5. -P. 591-600
12. V.А.Mechnyk. Regularities of structure formation in diamond−Fe–Cu–Ni–Sn–CrB2 systems //Materials Science. -2013. –Vol.49. - Issue 1. –P.93-101.
13. V.A.Mechnik. Production of diamond-(Fe-Cu-Ni-Sn) composites with high wear resistance //Powder Metallurgy. -2013. –No.09/10. - P.115-127
14. V.A. Mechnik. Effect of hot post-pressing parameters on the structure and properties of diamond-(Fe-Cu-Ni-Sn-CrB2) composites //Powder Metallurgy. -2013. –No.11/12. -P.123-138.
15. M.V.Novikov, V.A.Mechnyk, M.O.Bondarenko et al. Composite materials of diamond−(Co–Cu–Sn) system with improved mechanical characteristics. Part 1. The influence of hot re-pressing on the structure and properties of diamond− (Co–Cu–Sn) composite //Journal of Superhard Materials. -2015. -Vol.37. Nо.6. – P.402–416.
16. A.F.Lisovsky, N.A.Bondarenko. The role of interphase and contact surfaces in the formations of structures and properties of diamond-(WC-Co) composites. A review //Journal of Superhard Materials. -2014. -Vol. 36. –Nо.4. -P.145-155.
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A 3D finite element method is used to analyze the expansion process of solid expandable tube. The tube is modeled as a deformable body with plastic kinematic hardening material behavior. It is found that expansive force increases with the increase of friction coefficient, also there exists optimal mandrel semi-cone angle and sizing zone length to make expansive force to be minimal. Reasonable large friction coefficient helps to reduce residual stress, and the residual stress shows a quadratic parabola relation with semi-cone angle. With the increase of friction coefficient and decrease of sizing zone length, the thickness variation of tube increases and length variation of tube decreases. Finally, a typical expansion simulation of rotating and not rotating the mandrel is analyzed, result shows that, when using a rotating mandrel, expansive force is 14.4% less than non-rotating mandrel.

Keywords: Solid expandable tubular technology; 3D finite element simulation; Expansive force; Residual stress; Tubular thickness/length variation.

References

1. C.Lohoefer, B.Mathis, D.Brisco et al. Expandable liner hanger provides cost-effective alternative solution //The paper presented at the IADC/SPE Drilling Conference held in New Orleans, Louisiana, USA, 23-25 February 2000.
2. J.Cantu, P.Smith, R.Nida. Expandable liner hanger application in arduous well conditions proves reliability: a case history //The paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition held in Perth, Australia, 18-20 October 2004.
3. Z.Li. Study on expandable tubular technology - key points and first application //Oil Drilling & Production Technology. -2004. -V.26. –No.3. -17−18.
4. G.Cales. The development and applications of solid expandable tubular technology // The paper presented at the Canadian International Petroleum Conference held in Calgary, Alberta, 10-12 June 2003.
5. J.Agata, E.Tsuru, M.Sawamura et al. Collapse prediction methodology for the solid expandable tubular //The paper presented at the SPE/IADC Drilling Conference and Exhibition held in Amsterdam, The Netherlands, 1-3 March 2011.
6. O.S.Al-Abri, T.Pervez. Structural behavior of solid expandable tubular undergoes radial expansion process–analytical, numerical, and experimental approaches //International Journal of Solids and Structures. -2013. -Vol.50. –No.19. -P.2980-2994.
7. Y.H.Lu. Study of tube flaring ratio and strain rate in the tube flaring process //Finite Elements in Analysis and Design. -2004. -Vol.40. –No.3. -P.305-318.
8. T.Pervez, R.Khan, Z.Qamar et al. Post-expansion characterization of expandable tubular: progress and challenges //The paper presented at the SPE/IADC Middle East Drilling Technology Conference and Exhibition held in Muscat, Oman, 24-26 October 2011.
9. T.Pervez, A.Seibi, S.Al-Hiddabi et al. Solid tubular expansion in horizontal wells //The paper presented at the SPE Middle East Oil and Gas Show and Conference held in Manama, Bahrain, 11-14 March 2007.
10. J.Durivault, J.Bernard, E.Desdoit et al. Kinematic hardening characterization: applications to solid expandable tubulars //The paper presented at the SPE Annual Technical Conference and Exhibition held in Florence, Italy, 19-22 September 2010.
11. F.Xue-yi, L.Li. Harmfulness of residual stress and countermeasures //Science&Techonoly of Baotou Steel (Group) Corporation. -2006. -Vol.32. -P.82-84.

To determine the performance change of surfactant-polymer system in deep reservoir, flowing experiments were carried out with the cores of different lengths. The pressure of different locations in the same core was measured to investigate resistance factor and residual resistance factor of surfactant-polymer system. Oil/ water IFT of produced fluid was tested by the traditional spinning drop method to study oil/water interfacial activity in deep reservoir. This paper studied the contributions of viscosity and interfacial activity on the oil recovery, the paper could be a reliable basis for choosing polymer and surfactant in order to reach the maximal oil recovery.

Keywords: Chemical flooding, Oil displacement, Resistance factor, Residual resistance factor, Interfacial activity.

References

1. D.M.Wang, G.Wang, H.F.Xia et al. Chemical flooding recovery mechanism of natural cores /Journal of Southwest Petroleum University (Science & Technology edition). -2011. –Vol. 33. –Issue 2. –P.1-11.
2. Q.Yu, H.Jiang, Y.Song et al. Chemical Flooding for Enhanced Recovery //Energy Sources, Part A: Recovery, Utilization, and Environmental Effects. -2012. Vol.34. –Issue 5. –P.478-483. 
3. D.M.Wang. Study on ASP flooding, binary system flooding and mono-system flooding in Daqing oilfield //Petroleum Geology & Oilfield Development in Daqing. -2003. –Vol. 22. –Issue 3. –P.1-9.
4. D.M.Wang, C.D.Liu, W.X.Wu, G.Wang. Development of an ultralow interfacial tension surfactant in systems with no-alkali for chemical flooding //The paper presented at the SPE/DOE Improved Oil Recovery Symposium held in Tulsa, Oklahoma, USA, 20-23 April 2008.
5. X.Lv, J.Zhang, W.Jiang. Progress in polymer/surfactant binary combination drive //Journal of Southwest Petroleum University (Science & Technology edition). -2008. –Vol.30. –Issue 3. –P.127-130.
6. M.Taha, A.Al-Shiwaish. Effect of brine salinity on interfacial tension in Arab-D carbonate reservoir, Saudi Arabia //The paper presented at the SPE Middle East Oil & Gas Show and Conference held in Manama, Bahrain, 15-18 March 2009.
7. Y.P.Zhang, S.G.Sayegh, S.Huang. Effect of oil/brine ratio on interfacial tension in surfactant flooding //The paper presented at the Canadian International Petroleum Conference held in Calgary, Alberta, 12-14 June 2007.
8. B.Smit, A.G.Schlijper, A.M.Rupert, N.M.Van Os. Effects of chain length of surfactants on the interfacial tension: molecular dynamics simulations and experiments //The Journal of Physical Chemistry. -1990. Vol.94. –Issue 18. –P.6933-6935.
9. A.Samanta, K.Ojha, A.Mandal. The characterization of natural surfactant and polymer and their use in enhanced recovery of oil //Petroleum Science and Technology. -2011. –Vol.29. –Issue 7. –P.765-777.
10. S.T.Kim, M.E.Boudh-Hir, G.A.Mansoori. The role of asphaltene in wettability reversal //The paper presented at the SPE Annual Technical Conference and Exhibition held in New Orleans, Louisiana, USA, 23-26 September 1990.
11. M.E.Boudh-Hir, G.A.Mansoori. Theory of interfacial tension of partially miscible liquids // Physica A. -1991. -Vol.179. –P.219-231.
12. J.Escobedo, G.A.Mansoori. Surface tension prediction of liquid mixtures //AIChE Journal. -1998. –Vol. 44. –Issue 10. –P.2324-2332.
13. X.H.Xu, F.Yang, N.Wang et al. Rheologic properties and molecular configuration of polymers in salt‐alkali‐surfactant mixed solutions //Journal of Dispersion Science and Technology. -2008. –Vol.29. –Issue 1. –P.101-105.
14. H.F.Xia, G.Wang, W.G.Ma et al. Influence of viscoelasticity and interfacial tension of nonalkali binary compound solution on recovery efficiency of residual oil after water flooding // Acta Petrolei Sinica. -2008. –Vol.29. –Issue 1. –P.106-115.
15. J.L.Wang, S.Y.Yuan, F.S.Shi. Microprobe of structure of crystal/liquid interface boundary layers //Science in China. Series E: Technological Sciences. -2009. –Vol.39. –Issue 6. –P.1159-1165.

We have established the mechanism of the effect of structural-group and fractional oil content on its physicochemical properties and rheological characteristics resulting from a high content of high molecular components due to different solubility of liquid hydrocarbons relative to the latter ones. 

Keywords: Dispersed system, Oil fraction, Structural-group composition, High molecular components, Solubility, Boiling point

References

1. R.M.Karimov, B.N.Mastobaev. Change of technology of swapping of oil on the oil pipeline «Uzen-Atyrau-Samara» with development of petrotransport system of the Western Kazakhstan //Transport and storage of oil and hydrocarbons. –2010. –No.2. –P.9-14.
2. R.M.Karimov, B.N.Mastobaev. Rheological properties of the Western Kazakhstan oil mixture //Transport and storage of oil and hydrocarbons. –2011. –No. 2. –P.3-7.
3. R.M.Karimov, B.N.Mastobaev. The rheological characteristics of commodity oil of the Western Kazakhstan //Bashkir Chemical Journal. –2011. –Vol.18. –No. 4. –P.177-181.

Flooding is presently the most-commonly used EOR method. However, in fields with complicated geological structure and high-viscosity oil this method does not always produce the expected result. On the other hand, worker agents injected into the formation for residual oil displacement, moving along highly permeable sections penetrate the producer wells. This leads to premature flooding and low permeability oil-bearing zones remain aloof from development. This article presents test results obtained under laboratory conditions for air displacement, gas-water drive, surfactant solution with gas displacement through homogeneous and heterogeneous porous media under different attitude of bed. Experimental studies are aimed at maximum penetration of the working agent injected both in high permeability and low permeability zones for enhanced extraction of residual oil. 

Keywords: Reservoir model; Homogeneous porous medium; Heterogeneous porous medium; Oil displacement efficiency; Water-gas mixture

References

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Bifunctional additive from the available raw materials has been developed. The given additive enables to modify low-temperature and antiwear properties of diesel fuels. Physical and chemical characteristics of diesel fuel containing developed additive do not change the quality scores of the latter in limits of the allowed values provided by GOST R 52368 standard. Diesel fuel containingthis additive is stable at cold storage and it is able to be tested when interacting with water.

Keywords: Diesel fuel, Diesel fuel additives, Butyl alcohol distillation residue, Low-molecular-weight polyethylene, Ecotoxicity

References

1. Results of International Conference «Diesel 2013». Neftegaz.ru online resource. http://neftegaz.ru
2. O.Baulin, M.Rakhimov, Z.Rakhimova, A.Akhmetov. Alternative of diesel fuel lubricity increase with improved ecological performance //Bashkir Chemical Journal. -2005. –No. 4. -P.72-74
3. Online resources of United States Environmental Protection Agency. Health and Ecological Effects. http://www.epa.gov
4. O.Grigoreva, O.Baulin, M.Rakhimov. Additives for ecological characteristic improvement of diesel fuels //Proceedings of 59th Scientific and Technical Conference of Students, PhD and Young Researches. Book 2. Ufa: USPTU, 2008. -P.56
5. O.Grigoreva, O.Baulin, M.Rakhimov. Influence of internal combustion engine exhaust gases on human organism //Proceedings of 58th Scientific and Technical Conference of Students, PhD and Young Researches. Book 2. Ufa: USPTU, 2007. -P.39
6. Ur.Shalkovska, P.Steiner. Establishment of specification requirements for the quality of motor fuels in Europe //World of Oil Products. - 2011. -№2. -P.3-9
7. V.Khavkin, L.Gulyaev, N.Vinogradov et al. Modern technology of diesel fuel production // World of Oil Products. -2013. -№4. -P.17-25
8. Online resources of Integer Emissions Summit Russia & CIS 2014. http://www.integer-research.com
9. Ecology of automobile transport. Online resources. http://manica1988.narod.ru/air.html
10. Improvement of hydrotreatment processes for diesel fuels. Analytical review. Moscow, 2012.
11. H.Hirai, Y.Matsuo, H.Uno, Y.Nagatomi. Supply and demand analysis on petroleum products and cruide oils for Asia and the World. Japan: The Institute of Energy Economics, April 2008.
12. T.W.Klein. Automotive fuel markets in Eastern/Central Europe & Former Soviet Union (FSU) //Presented at UN/EPA Partnership on Cleaner Fuels & Vehicles, by the International Fuel Quality Center, November 14, 2002. 
13. Online resources of The Ministry of Energy of the Russian Federation (Minenergo of Russia) http://www.minenergo.gov.ru
14. O.Baulin, M.Rakhimov, O.Grigoreva et al. Methods of diesel fuel production with improved ecological performance //The electronic scientific journal «Oil and Gas Business». -2007. -Vol.5. -№1. -P.189-192
15. D.Kh.Fayruzov, R.Kh.Fayruzov, A.V.Sitdikova et al. ULSD production //The electronic scientific journal «Oil and Gas Business». -2009. -№1. -P.1-12.
16. L.Minibaeva, R.Usmanov, O.Baulin. The range of additives to diesel fuels //World Community: Problems and Solutions. -2010. -№ 28. -P.30- 40.
17. L.Minibaeva, D.Akhmetzanov, R.Usmanov, O.Baulin. Study of the impact of cetane number improver effectiveness on the operational performance of diesel fuels //Bashkir Chemical Journal. -2012. -Vol.19. -№ 1. -P.149-153.
18. O.Baulin. Lubricity of low sulfur diesel fuels and methods its improvement //PhD thesis in Engineering Science. Ufa: USPTU, 2006.
19. Procedure of water toxicity determination by using Biotester-2. Ufa, 2013.
20. V.Goncharuk, V.Kovalenko. Theoretical aspects of natural and drinking-water biotesting //Chemistry and Technology of Water. -2012. -Vol.34. -№ 2. -P. 171-177.
21. K.Osinskaya, F.Shahova, A.Muhamadeeva et al. Study of additives ecotoxicity and their effect on quality scores of diesel fuels //The electronic scientific journal «Oil and Gas Business». -2013. -Vol.3. -№ 3. -P.118-122.

On base of multiresolution analysis in L₂(R³) and application of discrete wavelet trasformation wit separable orthonormal basis it worked out the stable approximation calculation method for classical solution of initial-boundary problem of nonstationary liquid filtration in crack-porosity medium in circular form. Puted problem is reduced to solving of uncorrect problem for system of linear algebraic equations under nonprecise data, for which apptoximate solution received by regularization method be stable about errors in task both of defferential equations coefficients, the boundary conditions and nonprecise of right part of equations.

Keywords: Nonstationary filtration; Crack-porosity form; Multiscale analysis; Discrete wavelet trasformation; Regularization method.

References

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