A fast computational model for wellbore pressure transients while perforating with dynamic underbalance

Bale, Derek S.; Satti, Rajani

doi:10.1016/j.petrol.2019.106495

Cited by 6 publications

(2 citation statements)

References 12 publications

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“…The third stage is the shaped energy enhanced perforation technology in 1980s, and this technology can greatly improve the perforation efficiency by scouring perforated hole and creating micro-cracks around perforated hole 2 . In the fourth stage, new perforating technologies emerge at the beginning of this century, which include dynamic negative pressure perforating technology, self-cleaning perforating technology and ultra-high perforation density, and they further improve the communication channel between formation and wellbore 3 – 6 . The fifth stage is the multi-stage perforation technology, which produces in recent years with the advancement of fracturing technology 7 , 8 .…”

Section: Introductionmentioning

confidence: 99%

Construction and application of flow pressure drop model of perforated well considering pressure loss of perforation hole

Jiang,

Wu,

Zheng

et al. 2023

Sci Rep

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Perforating well is one of the main production wells in reservoir development. Perforating effect directly affects well production, so the optimization of perforating parameters has attracted wide attention. Because pressure difference serves as the driving force for fluid flowing from formation to wellbore, it is important to understand the composition of production pressure difference in perforating well, which can guide the optimization of perforating parameters and the evaluation of perforating effect. In order to clarify the composition of production pressure difference during the production process of perforated wells, a pressure drop model pressure drop model is established based on fluid mechanics theory, which includes a pressure drop model of formation and a pressure drop model of perforation hole. The pressure drop model of formation is firstly constructed based on the Darcy's law and the equivalent resistance method, and the pressure drop model of perforation hole is built by the fluid tube-flow theory. Secondly, the numerical calculation method is adopted to realize the coupling solution of models, and the accuracy of this model is verified by comparison of the Karakas-Tariq model. Finally, the effects of formation physical properties and perforating parameters on flow pressure drop are discussed. The results show that there is a difference of more than 2 orders of magnitude between the pressure drop generated in perforation hole and flow pressure difference, and pressure drop of perforation hole can be neglected in practical applications. Comparing with medium–high permeability reservoirs, optimizing perforation parameters in low permeability reservoirs has a more significant impact on flow pressure drop. Among perforating parameters, perforation length and perforation density have great influence on flow pressure difference, while perforation diameter and phase angle have relatively little influence. These results have certain guiding significance for optimizing perforating parameters in different permeability reservoirs.

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Section: Introductionmentioning

confidence: 99%

Construction and application of flow pressure drop model of perforated well considering pressure loss of perforation hole

Jiang,

Wu,

Zheng

et al. 2023

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Afterward, the perforation guns are fired to create a controlled entrance of reservoir fluids into the wellbore. This results in better cleaning of the perforations and improving the well's productivity and injectivity (Bale and Satti, 2020), and if completed successfully, minimizes the formation damage near the perforation zone (Abobaker et al, 2021). In UBP, the perforations are immediately back surged; this results in the debris being expelled into the well upon entrance of formation fluids to the wellbore.…”

Section: Introductionmentioning

confidence: 99%

Application of underbalanced tubing conveyed perforation in horizontal wells: A case study of perforation optimization in a giant oil ﬁeld in Southwest Iran

Mohammadian

Dastgerdi

Manshad

et al. 2022

Adv. Geo-Energy Res.

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Study on transient prediction method of dynamic underbalanced pressure after perforation detonation in ultra-deep wells

Ding,

Chen,

Han

et al. 2024

Geoenergy Science and Engineering

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A fast computational model for wellbore pressure transients while perforating with dynamic underbalance

Cited by 6 publications

References 12 publications

Construction and application of flow pressure drop model of perforated well considering pressure loss of perforation hole

Construction and application of flow pressure drop model of perforated well considering pressure loss of perforation hole

Application of underbalanced tubing conveyed perforation in horizontal wells: A case study of perforation optimization in a giant oil ﬁeld in Southwest Iran

Study on transient prediction method of dynamic underbalanced pressure after perforation detonation in ultra-deep wells

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