Gastropods from the Campanian–Maastrichtian Aruma Formation, Central Saudi Arabia

Gameil, Mohamed; El‐Sorogy, Abdelbaset S.

doi:10.1016/j.jafrearsci.2014.11.015

Cited by 21 publications

(4 citation statements)

References 9 publications

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“…The Khanasir limestone, the Hajajah limestone, and the Lina Shale make up the three main members of this formation, listed from bottom to top. Aruma outcrop in Saudi Arabia has been found in Al-Kharj City southeast of Riyadh in central Saudi Arabia 41 , 42 . The limestone rock was crushed to fine particles using a ball milling machine.…”

Section: Methodsmentioning

confidence: 99%

RETRACTED ARTICLE: Micronized calcium carbonate to enhance water-based drilling fluid properties

Basfar,

Elkatatny

2023

Sci Rep

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Advanced drilling technique requires competent drilling fluids. This study tests micronized calcium carbonate (CaCO3) as a water-based drilling fluid (WBDF) additive. CaCO3 microparticles were extracted from Aruma formation outcrop and studied for structural, colloidal stability, morphology, and particle size distribution. WBDF systems were prepared with varying quantities of CaCO3 microparticles, including 0, 15, 30, and 45 lb/bbl, respectively. The addition of CaCO3 microparticles was investigated in terms of the rheological, high pressure-high temperature (HPHT) filtration, barite sagging, density, and pH. The results showed that CaCO3 microparticles are stable at a pH greater than 8. Moreover, fluid containing CaCO3 microparticles exhibited an enhancement in rheological properties. The yield point increased by 29%, 34%, and 37% for 15, 30, and 45 lb/bbl of CaCO3 respectively. In addition, the HPHT filtration also showed that CaCO3 has a significant improvement in both filtration loss and filter cake thickness. The filter cake thickness decreased by 17%, 40%, and 65% at 15, 30, and 45 lb/bbl of CaCO3 respectively. Static and dynamic sag maintained in a safe range at 30 lb/bbl of CaCO3 microparticles. This study showed that using CaCO3 microparticles along with conventional fluid additives improved the thermal stability and rheological properties of drilling fluid.

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Section: Methodsmentioning

confidence: 99%

RETRACTED ARTICLE: Micronized calcium carbonate to enhance water-based drilling fluid properties

Basfar,

Elkatatny

2023

Sci Rep

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“…Remarks: the present species closely resembles Calliomphalu sorientalis [16], which was originally described in Egypt [17,18,11]. Also, it is very similar to C. orientalis, which was described in Saudi Arabia [15]. [4].…”

Section: Al-dulaimysupporting

confidence: 60%

Gastropods of Aptian- Cenomanian of Qamchuqa Formation from Northern Iraq

Al-Dulaimy

2020

eijs

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Gastropod species belonging to Qamchuqa Formation (Aptian-Cenomanian) in the North of Iraq are studied. These species are Harpagodes nodosus (J.de C. Sowerby,1823), Ampullina sp.1 (Hannaa and Furisch, 2011), Ampullina sp.2 (Hannaa and Furisch, 2011), Tylostoma pallaryi (Peron and Fourtau, 1904), Calliomphalus orientalis (Douville,1916), and Pyrgulifera (Meek, 1871). They are recorded in the Upper Cretaceous succession of Northern Iraq for the first time. Most of these species are internal moulds and not abundant at any stratigraphic level but irregularly scattered in the formation.

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“…Initially, the calcite particles were extracted from the Khanasir limestone member within the Aruma Saudi formation. The Aruma outcrop, situated in the central region near Al-Kharj City in Saudi Arabia, exhibits a distinctive lithology characterized by its prominent limestone formations, including the notable Khanasir member 33,34 . Employing a ball milling machine, the limestone rock illustrated in Fig.…”

Section: Calcite Microparticles Preparationmentioning

confidence: 99%

Evaluation of using micronized saudi calcite in ilmenite-weighted water-based drilling fluid

Shokry,

Basfar,

Elkatatny

2024

Sci Rep

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A high-density water-based drilling fluid (WBDF) is crucial for maintaining wellbore stability, controlling formation pressures, and optimizing drilling performance in challenging subsurface conditions. In the present research, the effect of micronized calcium carbonate (calcite), extracted from the Aruma formation outcrop, is evaluated as one of the additives that could be added to the ilmenite-weighted WBDF to enhance and optimize its properties. Various concentrations of Calcite microparticles were introduced into identical fluid formulations to assess their impact. The concentrations ranged from 0, 10, 20, to 30 lb/bbl, providing a comprehensive examination of the effects of calcite microparticles across a spectrum of concentrations within the fluid. The results highlighted that adding Barite microparticles to the WBDF revealed a notable enhancement in rheological properties. Specifically, the yield point demonstrated an increase of 37%, 37%, and 11% for concentrations of 10, 20, and 30 lb/bbl of calcite, respectively. Equally significant, high-pressure-high-temperature (HPHT) filtration analysis indicated a considerable enhancement for the fluids containing calcite microparticles. A reduction of 14.5%, 24.6%, and 13% were observed in HPHT filtrate for concentrations of 10 lb/bbl, 20 lb/bbl, and 30 lb/bbl respectively. Simultaneously, there is a reduction in filter cake thickness by 20%, 40%, and 20%, respectively. No ilmenite settling was observed in the sample containing 20 lb/bbl of calcite, unlike the other concentrations. These diverse results strongly suggest that the optimal concentration for calcite microparticles is 20 lb/bbl. The combined utilization of the optimal concentration of calcite microparticles alongside the established additives proves to be an effective strategy for optimizing the ilmenite-weighted WBDF performance in terms of both thermal stability and rheological behavior.

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Gastropods from the Campanian–Maastrichtian Aruma Formation, Central Saudi Arabia

Cited by 21 publications

References 9 publications

RETRACTED ARTICLE: Micronized calcium carbonate to enhance water-based drilling fluid properties

RETRACTED ARTICLE: Micronized calcium carbonate to enhance water-based drilling fluid properties

Gastropods of Aptian- Cenomanian of Qamchuqa Formation from Northern Iraq

Evaluation of using micronized saudi calcite in ilmenite-weighted water-based drilling fluid

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