Exploring the role of hydrophobic nanofluids in reducing shale swelling during drilling: A step towards eco-friendly and sustainable practices

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F24%3A73628010" target="_blank" >RIV/61989592:15310/24:73628010 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0927775724010252" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0927775724010252</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.colsurfa.2024.134164" target="_blank" >10.1016/j.colsurfa.2024.134164</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Exploring the role of hydrophobic nanofluids in reducing shale swelling during drilling: A step towards eco-friendly and sustainable practices

Popis výsledku v původním jazyce

This study conducts a comparative analysis between hydrophobic nanosilica (HNS) and potassium chloride (KCl), a widely used shale inhibitor, to better understand how HNS can effectively manage water and shale interactions by restricting mud filtration into the formation. Due to their small size and optimal interfacial properties, nanoparticles emerge as remarkable solutions for addressing this issue. In this work, shale samples were collected from the Kolosh Formation in the Kurdistan Region of Iraq, known for being one of the most challenging formations to drill. Investigations into the properties of drilling fluid were conducted using low pressure and low temperature (LPLT) and high pressure high temperature (HPHT) filter press, alongside analyzing rheological properties at three different temperatures (25, 50 and 75°C). In addition, the impact of the HNS on clay swelling was examined using the liner swelling meter (LSM) test, shale dispersion test (SDT) and capillary suction time (CST) test. The obtaining results revealed that the shale hydration in the drilling fluids was reduced 24.36–15.53% and the shale recovery at high temperatures was improved from 80.2% to 94% by adding 0.4 wt% HNS. Furthermore, HNS demonstrated improved clay suspension in the CST test wherein the suspension time reduced from 303 to 80 sec at the same HNS concentration. Utilizing HNS effectively reduced clay swelling in all experiments and enhanced the rheological properties of the mud, showcasing stability across a range of temperatures and significantly reducing the formation of filter cake and fluid loss. As is obvious, KCl based drilling fluids are prohibited in several parts in the word due to its negative impact on the environment and subsurface activities; thus, it can be substituted by HNS as an active shale inhibitor additive.

Název v anglickém jazyce

Exploring the role of hydrophobic nanofluids in reducing shale swelling during drilling: A step towards eco-friendly and sustainable practices

Popis výsledku anglicky

This study conducts a comparative analysis between hydrophobic nanosilica (HNS) and potassium chloride (KCl), a widely used shale inhibitor, to better understand how HNS can effectively manage water and shale interactions by restricting mud filtration into the formation. Due to their small size and optimal interfacial properties, nanoparticles emerge as remarkable solutions for addressing this issue. In this work, shale samples were collected from the Kolosh Formation in the Kurdistan Region of Iraq, known for being one of the most challenging formations to drill. Investigations into the properties of drilling fluid were conducted using low pressure and low temperature (LPLT) and high pressure high temperature (HPHT) filter press, alongside analyzing rheological properties at three different temperatures (25, 50 and 75°C). In addition, the impact of the HNS on clay swelling was examined using the liner swelling meter (LSM) test, shale dispersion test (SDT) and capillary suction time (CST) test. The obtaining results revealed that the shale hydration in the drilling fluids was reduced 24.36–15.53% and the shale recovery at high temperatures was improved from 80.2% to 94% by adding 0.4 wt% HNS. Furthermore, HNS demonstrated improved clay suspension in the CST test wherein the suspension time reduced from 303 to 80 sec at the same HNS concentration. Utilizing HNS effectively reduced clay swelling in all experiments and enhanced the rheological properties of the mud, showcasing stability across a range of temperatures and significantly reducing the formation of filter cake and fluid loss. As is obvious, KCl based drilling fluids are prohibited in several parts in the word due to its negative impact on the environment and subsurface activities; thus, it can be substituted by HNS as an active shale inhibitor additive.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS

ISSN

0927-7757

e-ISSN

1873-4359

Svazek periodika

694

Číslo periodika v rámci svazku

AUG

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

15

Strana od-do

"134164-1"-"134164-15"

Kód UT WoS článku

001238318200001

EID výsledku v databázi Scopus

2-s2.0-85192156222