Inflow Performance Relationship for Perforated Horizontal Wells

Yildiz, Turhan

doi:10.2118/88987-pa

Cited by 7 publications

(1 citation statement)

References 42 publications

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“…(1) The time of water breakthrough can be delayed by perforating wellbores with variable densities [4,5]. This is based on the throttling principle to balance the flow quantities of different layers.…”

Section: Introductionmentioning

confidence: 99%

A New Coated Proppant for Packing Fractures in Oil Reservoirs

et al. 2023

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The method of packing conventional proppant into fractures is used to maintain high liquid permeability. In this study, by coating a hydrophobic material on the surface of a proppant, the layer packed with this coated proppant was endowed with water-plugging and oil-permeability capacities. Moreover, several research experiments were carried out to verify the proposed method: a water plugging capacity (WPC) test of the coated proppant layer, compression and temperature resistance tests of the coated proppant (temperature range from 90 to 210 °C; pressure range from 5.9 to 91.4 MPa), and a 3D test of the oil recovery enhancement. The results show that the proppant coating has good compression resistance, and the proppant begins to break at 27.3 MPa. The upper limit of the temperature resistance of the coating is 170 °C. The WPC of the layer packed with coated proppant was still reliable during fracture, which was enhanced by at least 20% compared with that of the layer packed with a conventional proppant. The fracture packed with the coated proppant had superior working performance compared with that packed with a conventional proppant. It can reduce the flow capacity of the water phase breaking into the dominant flow passage so as to delay the rise in the water production of the oil well and prolong the duration of oil production. In this way, oil recovery could be increased by about 7.7%. In conclusion, the technology proposed in this paper has particular water-plugging and oil-permeating characteristics, with remarkable technical advantages, thus providing a new idea for the development of water control in fracture reservoirs.

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Section: Introductionmentioning

confidence: 99%

A New Coated Proppant for Packing Fractures in Oil Reservoirs

et al. 2023

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The optimal semi-analytical modeling for the infinite-conductivity horizontal well performance under rectangular bounded reservoir based on a new instantaneous source function

Al-Kabbawi

2024

Petroleum

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Equivalent Skin Factors for Nonuniformly Damaged Horizontal and Multilateral Wells

Yildiz

2008

All Days

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In the first part of this study, we scrutinize the equivalent skin concept used to emulate the influence of uneven formation damage on the performance of horizontal wells. Rigorous 3D multisegment well models are used to simulate the local changes due to nonuniform formation damage around wellbore accurately. We show that the simple models, presented in the literature, to compute equivalent skin factors are quite limited in their accuracy.Equivalent skin factor resulting from nonuniform formation damage around a horizontal well, in general, is influenced not only by the static damage distribution itself but also by many reservoir and wellbore variables. A convoluted interaction of well location, distance to reservoir boundaries, reservoir boundary type, formation thickness, well length, extent and nature of static formation damage itself, production time, and the contrast between the flux distributions around damaged and undamaged wells affects and controls the equivalent skin factor around horizontal wells.In the second part of the study, we investigate the uneven formation damage around multilateral wells. Our investigation concludes that, as far as the equivalent skin factor values are concerned, the multilateral cannot be represented as an extension of horizontal wells. The interaction between the laterals affects the flux distribution around the laterals which in turn influences equivalent skin factors. Commingled production from duallateral systems changes the nature and size of equivalent skin in comparison with equivalent skin factors resulting from individual and separate productions from each lateral. In a duallateral system, the contrast in the individual lateral lengths may have a strong impact on the equivalent skin factors for both laterals.

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Inflow Performance Relationship for Perforated Horizontal Wells

Cited by 7 publications

References 42 publications

A New Coated Proppant for Packing Fractures in Oil Reservoirs

A New Coated Proppant for Packing Fractures in Oil Reservoirs

The optimal semi-analytical modeling for the infinite-conductivity horizontal well performance under rectangular bounded reservoir based on a new instantaneous source function

Equivalent Skin Factors for Nonuniformly Damaged Horizontal and Multilateral Wells

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