The Value of Frac Packing

Ghalambor, Ali; Comeaux, Bruce

doi:10.2118/9781555631376-20

Cited by 1 publication

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“…Injecting CO 2 into these formations at commercial rates is challenging due to the extremely low well injectivity. This investigation put forth frac-packing technology, commonly utilized to control sand production (Ghalambor et al, 2009), as a means to complete CO 2 injection wells and improve injectivity (Fig. 2).…”

Section: Introductionmentioning

confidence: 99%

Theoretical assessment of CO2 injection into low-temperature water zones for non-leaking storage in hydrate form

Guo,

Zhang

2023

Adv. Geo-Energy Res.

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Concerns exist about CO 2 leaks from conventional supercritical CO 2 storage reservoirs. This study investigates injecting CO 2 into low-temperature offshore reservoirs to lock it in a solid state, thus preventing potential leaks. An analytical model was developed to predict CO 2 injectivity into frac-packed injection wells in these low-temperature reservoirs. While the initial transient flow model was complex with Bessel functions and exponential integral, it was further simplified for practical field application. Sensitivity analysis of the model reveals that injectivity is less sensitive to reservoir permeability but more sensitive to fracture conductivity. The analytical model suggests injectivity is directly proportional to fracture width and fracture permeability. The case study utilizing field data from the South China Sea indicates feasible injection rates ranging from 6 to 17 tons/day depending on fracture conductivity. This work provides an analytical tool to predict injectivity for CO 2 storage in frac-packed low-temperature offshore reservoirs, contributing to carbon reduction and neutralization goals.

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Section: Introductionmentioning

confidence: 99%