Thread by @geoengineering1

🚨NEW PAPER🚨

"The recent paper aims to highlight key operational challenges related to #CO2 #Injection in low-temp environments at various pressures."

So, a new approach is provided "to assess injectivity impairment phenomena, & their remediation at the lab scale."

🧵
1/11

"A novel core flooding-based testing apparatus was used to reckon permeability changes of porous core medium during injection of #CO2 across a range of saturations/T/P. This shows the effect on injectivity of
formation-damage mechanisms, including formation of CO2 hydrates."
2/11

"The new dynamic dual-phase injection test rig was designed, built, and used in this study to assess a range of conditions expected during #CO2 #injection either into deep saline aquifers or depleted oil and gas reservoirs."
3/11

So, results revealed that, "#injection of #CO2 into a brine-saturated porous core medium, with manipulation of the pressure into the hydrates-formation envelope, resulted in severe blockages in the core sample."
4/11

"Manipulation of the temperatures and pressures at specific trajectories allowed for determination of #CO2 #hydrates blockages."
5/11

"Reproduction of #injectivity impairment under a variety conditions, saturations and flow rates demonstrated the ability to form, dissipate, and reform #CO2 #hydrates within a porous medium."
6/11

"The equipment allows for near wellbore treatment assessment (including inhibition, remediation, prevention and induced fractures methods) which are now being developed exclusively as CO2-specific additives to manage #injectivity and well integrity."
7/11

So, this paper presents "new laboratory workflow for the dynamic assessment of #CO2 #injection into reservoirs, determining under which specific operating conditions CO2 injectivity is impaired due to formation of various solids."
8/11

The apparatus used "surpasses existing methods outlined in literature which mostly rely on static measurements of fluids rather than dynamic measurements in reservoir core, a much more field representative scenario for #geological #CarbonStorage."
9/11

📜 Read paper on novel testing to assess #GeologicalStorage and CO2 hydrate formation risks here ⬇️
onepetro.org/OTCONF/proceed…

#CarbonDioxideInjection
#CarbonStorage

10/11

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