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- Selection of the optimal development system for deposits with low-permeability reservoirs / V. A. Baikov [et al.]. – Available at: http://www.ogbus.ru/authors/Baikov/Baikov_2.pdf.

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- Development of hydraulic fractures mainly occurs along the axes of the regional stress field assuming fracturing operations are conducted in areas lacking a significant alteration of pressure and temperature, i.e. new exploration wells
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- . Modern pumping units which are employed for hydraulic fracturing operations achieve wellhead pressures of up to 20 MPa during the injection of fracturing fluid into the reservoir. Spontaneous hydraulic-fracturing growth in the horizon of interest is initiated as soon as injection pressure exceeds yield strength of the particular reservoir rock [2–8].

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- 2
- Sæby J., Pjømdal H. P., Van den Hoek P. Managed Induced Fracturing Improves Waterflood Performance in South Oman // International Petroleum Technology Conference. – Doha, Qafar (November, 2005).

Total in-text references: 1- In-text reference with the coordinate start=1542
- Prefix
- Modern pumping units which are employed for hydraulic fracturing operations achieve wellhead pressures of up to 20 MPa during the injection of fracturing fluid into the reservoir. Spontaneous hydraulic-fracturing growth in the horizon of interest is initiated as soon as injection pressure exceeds yield strength of the particular reservoir rock
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- [2–8]
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- . Real-time data acquisition of wellhead pressures from active and observation wells and the results of interference testing confirm that in some cases hydraulic fractures may achieve a length of up to 1 000 m [8].

- In-text reference with the coordinate start=1542
- 3
- Chavez J. C., Carruthers J., McCurdy P. Water Flooding Efficiency in a Scenario of Multiple Induced Fractures, an Applied Geomechanical Study // SPE 97526: SPE International Improved Oil Recovery Conference in Asia Pacific. – Kuala Lumpur, Malaysia (5–6 December, 2005).

Total in-text references: 1- In-text reference with the coordinate start=1542
- Prefix
- Modern pumping units which are employed for hydraulic fracturing operations achieve wellhead pressures of up to 20 MPa during the injection of fracturing fluid into the reservoir. Spontaneous hydraulic-fracturing growth in the horizon of interest is initiated as soon as injection pressure exceeds yield strength of the particular reservoir rock
- Exact
- [2–8]
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- . Real-time data acquisition of wellhead pressures from active and observation wells and the results of interference testing confirm that in some cases hydraulic fractures may achieve a length of up to 1 000 m [8].

- In-text reference with the coordinate start=1542
- 4
- Hoek P. J., Volchkov D., Burgos G., Masfry R. A. Application of New Fall-Off Test Interpretation Methodology to Fractured Water Injection Wells Offshore Sakhalin // SPE 102304: SPE Russian Oil and Gas Technical Conference and Exhibition. – Moscow, Russia (3–6 October, 2006).

Total in-text references: 1- In-text reference with the coordinate start=1542
- Prefix
- Modern pumping units which are employed for hydraulic fracturing operations achieve wellhead pressures of up to 20 MPa during the injection of fracturing fluid into the reservoir. Spontaneous hydraulic-fracturing growth in the horizon of interest is initiated as soon as injection pressure exceeds yield strength of the particular reservoir rock
- Exact
- [2–8]
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- . Real-time data acquisition of wellhead pressures from active and observation wells and the results of interference testing confirm that in some cases hydraulic fractures may achieve a length of up to 1 000 m [8].

- In-text reference with the coordinate start=1542
- 5
- Danymic Induced Fractures in Waterfloods and EOR / P. J. Van den Hoek [et al.] // SPE 115204: SPE Russian Oil and Gas Technical Conference and Exhibition. – Moscow, Russia (29–30 October, 2008).

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- Santarelli F. J., Havmøller O., Naumann M. Geomechanical Aspects of 15 Years Water Injection on a Field Complex: An Analysis of the Past to Plan the Future // SPE 112944: SPE North Africa Technical Conference and Exhibition. – Marrakech, Morocco (12–14 March, 2008).

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- 7
- Testing and Analysis of Wells Producing Commingled Layers in Priobskoye Field / A. Davletbaev [et al.] // SPE 117411: SPE Russian Oil & Gas Technical Conference and Exhibition. – Moscow, Russia (28–30 October, 2008).

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- Multi-Layer Steady-State Injection Test with Higher Bottomhole Pressure than the Formation Fracturing Pressure / A. Davletbaev [et al.] // SPE 136199: SPE Russian Oil & Gas Technical Conference and Exhibition. – Moscow, Russia (26–28 October, 2010).

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- In-text reference with the coordinate start=1758
- Prefix
- Real-time data acquisition of wellhead pressures from active and observation wells and the results of interference testing confirm that in some cases hydraulic fractures may achieve a length of up to 1 000 m
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- [8]
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- . S. Ekie et al. [9] present a mathematical model for the fracture formation for two vertical wells — one active well and one observation well. Conducting pulse-tests for the tracking of registration response pressures in several vertical observation wells can be used to determine the orientation of the fracture originating from the active fracture well.

- In-text reference with the coordinate start=3797
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- the active fractured well and the observation fractured well (fractures are oriented along the regional stress) either having a low-permeability porous bridge between the fracture tips, or two wells which are being directly connected through intersecting fracture planes without a porous media bridge. Furthermore, we want to highlight the results of interference test from the work
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- [8]
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- by interpreting the chosen data model and providing an estimation of the fracture and reservoir characteristics. Formulating the abovementioned problem, injection pressure is assumed to surpass the fracture closure pressure, i. e. its geometry (height, length, width) is treated constant.

- In-text reference with the coordinate start=11224
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- The presence of a small porous medium bridges having low filtration properties leads to a significant loss of pressure response between the active and the observation wells. The field case which are presented by A. Davletbaev et al.
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- [8]
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- show that pressure is responding almost instantaneous between the active and observation wells. Furthermore, the pressure difference between the wells is much smaller than in the results which are shown in Figures 2–4.

- In-text reference with the coordinate start=13050
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- The Figure emphasizes that higher fracture conductivities result in a better match for both pressure changes and absolute values of pressures in the active and the observation wells. Field case interpretation. The mathematical model, which is presented by A. Davletbaev et al.
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- [8]
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- , was used to interpret interference-test pressure data for wells pair (active well and observation well) and to acquire refined fracture parameters. History of injected water volumes into the active well was included in the mathematical model.

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- 9
- Ekie S., Hadinoto N., Raghavan R. Pulse-testing of vertically fractured wells // SPE 6751: 52nd Annual Meeting of the Society of Petroleum Engineers in Denver, CO. – 1977.

Total in-text references: 1- In-text reference with the coordinate start=1777
- Prefix
- Real-time data acquisition of wellhead pressures from active and observation wells and the results of interference testing confirm that in some cases hydraulic fractures may achieve a length of up to 1 000 m [8]. S. Ekie et al.
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- [9]
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- present a mathematical model for the fracture formation for two vertical wells — one active well and one observation well. Conducting pulse-tests for the tracking of registration response pressures in several vertical observation wells can be used to determine the orientation of the fracture originating from the active fracture well.

- In-text reference with the coordinate start=1777
- 10
- The influence of vertical fractures intercepting active and observation wells on influence tests / N. A. Mousli [et al.] // Petrol. Eng. Journal. – SPE 9346. –1982. – Vol. 22. – P. 933–944.

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- Prefix
- Conducting pulse-tests for the tracking of registration response pressures in several vertical observation wells can be used to determine the orientation of the fracture originating from the active fracture well. N. Mousli et al.
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- [10]
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- , D. Meehan et al. [11] presented analytical solutions of modeling interference test for wells with parallel. D. Tiab and E. Abobise [12] discussed the design of pulse testing of a fractured active well and vertical observation well (without fractures), presenting correlations for fracture orientation, average permeability and other parameters of the reservoir on the response amplitude and the

- In-text reference with the coordinate start=2135
- 11
- Meehan D. N., Horne R. N., Ramey Jr. H. J. Interference testing of finite conductivity hydraulically fractured wells // Soc. of Petrol. Eng. – SPE 19784. – 1989. – P. 137–152.

Total in-text references: 1- In-text reference with the coordinate start=2158
- Prefix
- Conducting pulse-tests for the tracking of registration response pressures in several vertical observation wells can be used to determine the orientation of the fracture originating from the active fracture well. N. Mousli et al. [10], D. Meehan et al.
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- [11]
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- presented analytical solutions of modeling interference test for wells with parallel. D. Tiab and E. Abobise [12] discussed the design of pulse testing of a fractured active well and vertical observation well (without fractures), presenting correlations for fracture orientation, average permeability and other parameters of the reservoir on the response amplitude and the response time in the

- In-text reference with the coordinate start=2158
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- Tiab D., Abobise E.O. Determining Fracture Orientation From Pulse Testing // SPE Formation Evaluation. – SPE 11027 – 1989. – Vol. 4, No 3. – P. 459–466.

Total in-text references: 1- In-text reference with the coordinate start=2272
- Prefix
- Conducting pulse-tests for the tracking of registration response pressures in several vertical observation wells can be used to determine the orientation of the fracture originating from the active fracture well. N. Mousli et al. [10], D. Meehan et al. [11] presented analytical solutions of modeling interference test for wells with parallel. D. Tiab and E. Abobise
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- [12]
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- discussed the design of pulse testing of a fractured active well and vertical observation well (without fractures), presenting correlations for fracture orientation, average permeability and other parameters of the reservoir on the response amplitude and the response time in the observation well.

- In-text reference with the coordinate start=2272
- 13
- Cooper K. J., Collins R. E. Applications of transient pressure interference tests to fractured and non-fractured injection wells // Soc. of Petrol. Eng. – SPE 19795. – 1989. – P. 327–339.

Total in-text references: 1- In-text reference with the coordinate start=2621
- Prefix
- Abobise [12] discussed the design of pulse testing of a fractured active well and vertical observation well (without fractures), presenting correlations for fracture orientation, average permeability and other parameters of the reservoir on the response amplitude and the response time in the observation well. In the same year K. Cooper and R. Collins
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- [13]
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- applied of a mathematical model which is based on interference test of a two-well system with a fractured (one fracture) and another non-fracture well that was used to interpret the results of a field case and to estimate underlying parameters of the system.

- In-text reference with the coordinate start=2621
- 14
- Transmissivity and Diffusivity Mapping From Interference Test Data: A Field Example / H. Najurieta [et al.] // SPE Formation Evaluation .– SPE 22701. –1995. – Vol. 10, No 3. – P. 180–185.

Total in-text references: 1- In-text reference with the coordinate start=2922
- Prefix
- Collins [13] applied of a mathematical model which is based on interference test of a two-well system with a fractured (one fracture) and another non-fracture well that was used to interpret the results of a field case and to estimate underlying parameters of the system. The article of H. Najurieta et al.
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- presents a two-dimensional model for heterogeneous anisotropic reservoirs; demonstrating the mathematical modeling for all wells. It can be used to calculate 2D pressure maps, transmissivity and diffusivity between active and observation wells estimated.

- In-text reference with the coordinate start=2922
- 15
- Interference testing in reservoirs with conductive faults or fractures / M. Abbaszadeh [et al.] // Soc. of Petrol. Eng. – SPE 38941. – 1997. – P. 153–163.

Total in-text references: 1- In-text reference with the coordinate start=3269
- Prefix
- It can be used to calculate 2D pressure maps, transmissivity and diffusivity between active and observation wells estimated. Reservoir case studies with conductive faults were also presented in the article
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- [15]
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- . Contrary to the abovementioned papers we elaborate a case that consists of the active fractured well and the observation fractured well (fractures are oriented along the regional stress) either having a low-permeability porous bridge between the fracture tips, or two wells which are being directly connected through intersecting fracture planes without a porous media bridge.

- In-text reference with the coordinate start=3269
- 16
- Aziz K., Settari A. Petroleum reservoir simulation // York: Elsevier Applied Science Publishers. – 1979.

Total in-text references: 1- In-text reference with the coordinate start=7889
- Prefix
- The system of equations (1)–(4) and the corresponding boundary conditions (5)–(8) for the geometry, as shown in Figure 1, were solved using the finite difference method for the Newton iteration scheme on a non-uniform rectangular difference grid
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- [16]
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- . The accuracy of the approximation was tested against an analytical solution for the case of wells with a single vertical fracture of finite conductivity [17]. An example of calculation was performed using the following parameters of the system: km = 1∙10 -15 m2; μ= 0,3 mPa∙s; L=500 m; h= 21,23 m; mφ= 0,17; fφ=0,414; cmt= 3,6687∙10 -9 1/Pa; cft= 9,4845∙10 -9 1/Pa; d= 1, 3, 5, 10,

- In-text reference with the coordinate start=7889
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- Cinco-Ley H., Samaniego V. F., Dominguez A. N. Transient pressure behavior for a well with a finite-conductivity vertical fracture // Soc. of Petrol. Eng. – SPE 6014. – 1978 – P. 253–264. Сведения об авторах Information about the authors Давлетбаев Альфред Ядгарович, к. ф.-м. н., доцент

Total in-text references: 1- In-text reference with the coordinate start=8048
- Prefix
- (1)–(4) and the corresponding boundary conditions (5)–(8) for the geometry, as shown in Figure 1, were solved using the finite difference method for the Newton iteration scheme on a non-uniform rectangular difference grid [16]. The accuracy of the approximation was tested against an analytical solution for the case of wells with a single vertical fracture of finite conductivity
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- [17]
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- . An example of calculation was performed using the following parameters of the system: km = 1∙10 -15 m2; μ= 0,3 mPa∙s; L=500 m; h= 21,23 m; mφ= 0,17; fφ=0,414; cmt= 3,6687∙10 -9 1/Pa; cft= 9,4845∙10 -9 1/Pa; d= 1, 3, 5, 10, 30, 100, 200, 500, 800 m; xdf−=9001 m; 2fx=100 m; kfwf ≈ 10∙10-12 m2∙m; ip= 27∙106 Pa.

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