Multistage Horizontal Wells Refracturing by Means of Abrasive Jet Perforation + Frac Technology (Russian)

Shaykamalov, Rustam; Gaponov, Mikhail; Mukhametshin, Marat; Bildanov, Vladislav; Katermin, A.V.; Bashirov, Ildar

doi:10.2118/203892-ru

Cited by 6 publications

(3 citation statements)

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“…There are two typical types of hydra-jet fracturing, involving the trailing frac-string process and non-tripping frac-string process [22][23][24]. In order to reduce the risk of the sand sticking issue, the trailing frac-string process was recommended for offshore sand packing well completion.…”

Section: Hydra-jet Fracturing Processmentioning

confidence: 99%

Lab Experiments for Abrasive Waterjet Perforation and Fracturing in Offshore Unconsolidated Sandstones

Liu,

Xu,

Zhang

et al. 2023

Processes

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Multistage hydraulic fracturing has been proven to be an effective stimulation method to extract more oil from the depleted unconsolidated sandstone reservoirs in Bohai Bay, China. The offshore wellbores in this area were completed with a gravel pack screen that is much too difficult to be mechanically isolated in several stages. Hydra-jet fracturing technology has the advantages of multistage fracturing by one trip, waterjet perforation, and hydraulic isolation. The challenges of hydraulic-jet fracturing in offshore unconsolidated sandstone reservoir can be summarized as follows: the long jet distance, high filtration loss, and large pumping rate. This paper proposes full-scale experiments on the waterjet perforation of unconsolidated sandstone, waterjet penetration of screen liners and casing, and pumping pressure prediction. The results verified that multistage hydra-jet fracturing is a robust technology that can create multiple fractures in offshore unconsolidated sandstone. Lab experiments indicate that the abrasive water jet is capable to perforate the screen-casing in less than one minute with an over 10 mm diameter hole. The water jet perforates a deep and slim hole in unconsolidated sandstone by using less than 20 MPa pumping pressure. Recommended perforating parameters: maintain 7% sand concentration and perforate for 3.0 min. Reduce sand ratio to 5%, maintain 3.0 m3/min flow rate, and continue perforating for 7.0 min. The injection drop of the nozzle accounts for more than 62% of the tubing pump pressure. The recommended nozzle combinations for different fracturing flow rates are 8 × ø6 mm or 6 × ø7 mm for 2.5 m3/min and 3.0 m3/min, and 8 × ø7 mm for 3.5 m3/min and 4.0 m3/min. A one-trip-multistage hydra-jet fracturing process is recommended to be used for horizontal wells in offshore unconsolidated sandstone reservoirs.

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Section: Hydra-jet Fracturing Processmentioning

confidence: 99%

Lab Experiments for Abrasive Waterjet Perforation and Fracturing in Offshore Unconsolidated Sandstones

Liu,

Xu,

Zhang

et al. 2023

Processes

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show abstract

“…• Mechanical isolation technology: The perforation in the production section is blocked with liner or expandable liner to obtain a new wellbore, which is then perforated for refracturing. This technology has good sealing effect, but the cost is high, the process is complicated, and the operation is difficult (Liu et al, 2021) (Shaykamalov et al, 2020).…”

Section: Current Status Of Refracturing Technology Developmentmentioning

confidence: 99%

Progress and Enlightenment of Refracturing Technology for Shale Gas in North America

Lei

Pan²,

Huang³

et al. 2022

Front. Energy Res.

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“…Besides, abrasive jet perforation has proven itself in the wells preparation for hydraulic fracturing, including oriented wells. The combined technology of abrasive jet perforation and subsequent refracturing through an abrasive jet perforating tool carried out by LLC Bashneft-Dobycha has shown its efficiency during repeated fracturing on horizontal multistage wells due to the possibility of using previously uninvolved intervals in the development and launch of the wells with a significant increase in the productivity coefficient [ 19 ]. Fryzowicz and Naughton-Rumbo [ 20 ] showed that AJP technology allowed to ensure the proppant safety during injection and to prevent its destruction by reducing the resistance at the entrance to the reservoir.…”

Section: Introductionmentioning

confidence: 99%

Well perforation optimization using an abrasive jet technique to create oriented slotted channels in terrigenous reservoirs

Chernyshov,

Ashikhmin,

Kashnikov

et al. 2024

Heliyon

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Multistage Horizontal Wells Refracturing by Means of Abrasive Jet Perforation + Frac Technology (Russian)

Cited by 6 publications

References 0 publications

Lab Experiments for Abrasive Waterjet Perforation and Fracturing in Offshore Unconsolidated Sandstones

Lab Experiments for Abrasive Waterjet Perforation and Fracturing in Offshore Unconsolidated Sandstones

Progress and Enlightenment of Refracturing Technology for Shale Gas in North America

Well perforation optimization using an abrasive jet technique to create oriented slotted channels in terrigenous reservoirs

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