Fluid filtration in a porous medium with wells with vertical hydraulic fracture of the formation

Davletbaev, A. Ya.

doi:10.1007/s10891-012-0739-1

Cited by 7 publications

(3 citation statements)

References 13 publications

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“…This study figure out the main control engineering parameters of different types of reservoirs, and the optimization sequence of stimulation process and fracturing parameters. Affected by fluid filtration (Davletbaev, 2012) and inter fracture interference (Gorjian et al, 2021) during fracture propagation period, the fracture length of Class I reservoir is smaller than that of Class II and III reservoirs under the same fluid strength (Figure 11). The According to the fracture propagation and productivity simulation results (Figures 13,14), the main engineering factor in JQ511 platform fracturing design is cluster spacing.…”

Section: Well Productivity Sensitivity Analysis After Hydraulic Fract...mentioning

confidence: 99%

The hydraulic fracturing design technology and application of geological-engineering integration for tight gas in jinqiu gas field

Zeng¹,

Li²,

Fang³

et al. 2022

Front. Energy Res.

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Tight sandstone gas reservoir of Shaximiao formation in Jinqiu Gas field has the advantages of wide distribution and abundant resources. Due to its low porosity, low permeability and strong spatial heterogeneity, this reservoir puts forward high requirements for sweet spot identification, cluster design and hydraulic fracture morphology prediction. Since the conventional stimulation methods can not meet the requirement of economy, the geological-engineering integration model is established. This optimization model of multiple subjects could layout the relationship among engineering characteristics, hydraulic fracture shape and well productivity. Based on the simulation results, key controlling factors are identified and optimized. And the customized stimulation strategies are recommended for different reservoir quality and different channel sand. Through application of these methods, the average test well productivity in the target field increased from 50,500 cubic meter per day to 434,300 cubic meter per day, and it lay a solid foundation for the efficient development of tight gas in central Sichuan Basin.

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Section: Well Productivity Sensitivity Analysis After Hydraulic Fract...mentioning

confidence: 99%

The hydraulic fracturing design technology and application of geological-engineering integration for tight gas in jinqiu gas field

Zeng¹,

Li²,

Fang³

et al. 2022

Front. Energy Res.

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“…Then, fracture half-length calculations were carried out for each mode of steady state injection test (see table in fig. Maltsev et al, 2012;Davletbaev A.Y., 2012]. For this purpose, Prats approach was used [Prats M., 1961], in which the connection of a half-length of a hydraulic fracture of infinite conductivity with effective well radius r wa ϭ x f /2 and the connection of skin-factor with well effective radius r wa ϭ r w exp(-S) are used.…”

Section: Example Of Determination Of Parameters Of Fracture Using Stementioning

confidence: 99%

Field Studies of Spontaneous Growth of Induced Fractures in Injection Wells

Davletbaev¹,

Байков²,

Bikbulatova³

et al. 2014

All Days

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Development of low-permeability reservoirs (less than 1 mD) is carried out with intensive flooding. Injection is performed at pressure above the formation fracturing pressure that is why in almost every well a spontaneous growth of (injection) induced fractures takes place.The main problem of pressure transient analysis in a low permeability reservoir with spontaneous fracturing is a long linear regime flow observed in the log-log plot and the absence of a basis to achieve a pseudo-radial flow. To increase the accuracy of well testing in spontaneously fractured injection wells, certain field tests were developed and run. While testing, an injection well with spontaneously induced fractures was shut-in before the bottom-hole pressure went below the fracture closing pressure, then injection resumed for a short period of time, and then the well was shut-in again to record the pressure fall-off curve. The second pressure fall-off curve shows that the pseudo-radial flow developed, because the close of the part of the fracture without proppant occurred.The paper shows field examples of interference well tests exhibiting fracture growth up to 1700 m diagnosed in injection wells. Examples of successful restriction of injection well operation and application of correlation relationships of fracture closing pressure vs. formation pressure to lower water-cut in production wells with water breakthroughs are described.

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“…и др., 2014], влияние эффектов нелинейной фильтрации в низкопроницаемых коллекторах [Афанасьев и др., 2014, Байков и др., 2013, Кокурина и др., 2013, Huo и др., 2008, Liu и др., 2010, Xu и др., 2012, наличием самопроизвольного развития трещин автоГРП в нагнетательных скважинах [Aristov и др., 2015, Байков и др., 2011, Гуляев и др., 2012, Давлетбаев и др., 2008, 2012, 2015, Давлетова и др., 2014, Hustedt и др., 2005, Мальцев и др., 2012, van den Hoek и др., 2005, Мартынов и др., 2014, Морозовский и др., 2012, Хасанов и др., 2009. При проектировании этих систем учитывается их сложное геологическое строение, высокая расчлененность объектов, необходимость выполнения массированного ГРП в добывающих и нагнетательных скважинах [Афанасьев и др., 2005, Черевко М.А.…”

Section: Introductionunclassified

Geophysical Monitoring of the Multilayer Reservoir with of Flooding and Induced Fractures Growth in the Injection Wells (Russian)

Davletbaev¹,

Zorin²,

Usmanov³

et al. 2015

SPE Russian Petroleum Technology Conference

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Fluid filtration in a porous medium with wells with vertical hydraulic fracture of the formation

Cited by 7 publications

References 13 publications

The hydraulic fracturing design technology and application of geological-engineering integration for tight gas in jinqiu gas field

The hydraulic fracturing design technology and application of geological-engineering integration for tight gas in jinqiu gas field

Field Studies of Spontaneous Growth of Induced Fractures in Injection Wells

Geophysical Monitoring of the Multilayer Reservoir with of Flooding and Induced Fractures Growth in the Injection Wells (Russian)

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