Performance Evaluation of Local Bentonite with Imported Grade for Utilization in Oil Field Operations in Nigeria

Joel, O.F.; Nwokoye, C.U

doi:10.2118/136957-ms

Cited by 5 publications

(2 citation statements)

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“…After, beneficiation with sodium bicarbonate, the local clay samples meet all the API standard required for viscosifier. Similar studies have been conducted by Joel and Nwokoye [5] and Apugo-Nwuso et al [6] and it was observed that all local samples used in their studies can attain the API specification for viscosifier when they are appropriately beneficiated. These studies have helped the oil policy makers in achieving their goal of local content as well as gearing towards development in their petroleum industry.…”

Section: Introductionsupporting

confidence: 78%

Rheological evaluation of local clay samples in central region Ghana for oil well drilling fluid formulation

Gomado

Forson

Boadi

et al. 2018

IJET

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The superb rheological features of bentonites makes them an excellent candidate in drilling operations. Its capacity of bentonite to swell and extend to a few times its unique volume gives it the gelling and viscosity controlling quality. The execution of clay or specifical bentonite as a great consistency controlling operator in drilling fluids largely depends on the great extent of its rheological conduct. Ghana as of late found oil and it has tossed a test to research to explore the utilization of local materials in the oil and gas operations. A rheological study was conducted on local clay samples from Ajumako, Saltpond and Winneba in the Central district of Ghana as a viscosifier in drilling muds. This will help to improve the local content of Ghana's oil and gas industry. Drilling muds were prepared from the samples in addition to a control mud using imported non-treated bentonite. The local clay samples were subjected rheological test where the flow behavior of the muds was determined by measuring the gel strength, plastic viscosity, and the yield point. The experimental values were compared to the API standards. It was revealed that the local clay had some potential features of bentonite and could be utilized as controlling operators in drilling fluids provided the clays are beneficiated to enhance their rheological properties. This novel tend to improve the local content in oil and gas industry in Ghana through the deployment of the local materials in oil and gas operations in the nation.

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Section: Introductionsupporting

confidence: 78%

Rheological evaluation of local clay samples in central region Ghana for oil well drilling fluid formulation

Gomado

Forson

Boadi

et al. 2018

IJET

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“…[1] Additionally, it is added to fresh water mud to enhance hole cleaning capability, form a thin filter cake of low permeability, lessen filtration into permeable formation, and promote well stability. [2][3][4] Bentonite particles may become aggregated under certain conditions including high temperatures, high concentrations, etc. [5] As a consequence, it is essential to add certain additives, that is, polymers, to make bentonie particles stable and prevent aggregation.…”

Section: Introductionmentioning

confidence: 99%

Effect of Guar Gum Polymer and Lime Powder Addition on the Fluid Loss and Rheological Properties of the Bentonite Dispersions

Razi

Ghiass

Razi

2013

Journal of Dispersion Science and Technology

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The effects of guar gum polymer and lime powder addition on the fluid loss and rheological properties of bentonite dispersions have been investigated. Eleven different formulations have been prepared according to the American Petroleum Institute procedures and their rheological characteristics have been determined using a rotational viscometer. Four rheological models have been used to describe the pseudo-plastic behavior of the dispersions. It has been observed that all rheological properties increase with pH and show a maximum at pH value of about 11.5. The effect of addition of lime also extremely increases the fluid loss of bentonite dispersions.

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Comparative Study Of Different Salts On Hydration Of Bentonite

Uti¹,

Joel²

2013

All Days

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The make up water is one of the main building blocks of the drilling mud. The pH, hardness, and salt content of the make up water determine the yield and performance of the bentonite clay. hydration and dispersion of dry clay are greatly affected if the makeup water contains salt or various metallic ions. Many drilling muds are prepared with seawater for economy and convenience. This research study therefore details a comparative study of different salts namely sodium chloride, potassium chloride and calcium chloride on the hydration of bentonite. The rheological values were determined using FANN viscometer with different concentrations of NaCl, KCl and CaCl2((0%,0.5%, 1.0%,1.5%,2.0%, 2.5%, 3.0%, 4.0%, 4.5% and 5.0%) respectively by weight of bentonite. Test results indicated that plastic viscosity for NaCl, KCl and CaCh ranged from 11 to 5 cP, 9 to 8 cP and 9 to 4 cP respectively. Also the yield point ranged from 13 to 2 lb/100ft2,17 to 8 lb/100ft2 and 17 to 1lb/100ft2 respectively. The fluid loss also ranged from 15 to 20ml/30mins for NaCl, 12 to 16ml/30mins for KCl and 18 to 30ml/30mins for CaCh respectively. Test results indicated that increase in the concentration of the salts resulted to decrease in rheological properties and increase in fluid loss respectively. The effect was more pronounced with CaCl2 than the other two salts. It is imperative to introduce fluid loss and viscosifying additives when using mix water with high salt concentrations.

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Performance Evaluation of Local Bentonite with Imported Grade for Utilization in Oil Field Operations in Nigeria

Cited by 5 publications

References 0 publications

Rheological evaluation of local clay samples in central region Ghana for oil well drilling fluid formulation

Rheological evaluation of local clay samples in central region Ghana for oil well drilling fluid formulation

Effect of Guar Gum Polymer and Lime Powder Addition on the Fluid Loss and Rheological Properties of the Bentonite Dispersions

Comparative Study Of Different Salts On Hydration Of Bentonite

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