Water-based drilling fluids for high-temperature applications and water-sensitive and dispersible shale formations

Akpan, Emmanuel Udofia; Enyi, Godpower C.; Nasr, G. G.; Yahaya, Aminu A.; Ahmadu, Abdullahi A.; Saidu, B

doi:10.1016/j.petrol.2019.01.002

Cited by 99 publications

(54 citation statements)

References 28 publications

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“…When concentration of M. oleifera leaves was increased, there was increase in PV while increase in temperature decreased the PV of the mud. High temperatures degrade some mud additives [21]. The same result was observed, where increased temperature, ended with reduced PV of the drilling mud which had mango and cashew extracts [22].…”

Section: Rheological Propertiessupporting

confidence: 52%

Improving the Rheological Properties of Water Based Mud with Moringa oleifera Leaves

Biwott

Akaranta

Kiprop

et al. 2019

CSIJ

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This paper aimed at improving the water-based drilling mud using Moringa oleifera (M. Oleifera) plant leaves. The rheological properties (plastic viscosity (PV), yield point (YP), and gel strength) of the mud were measured using standard procedures. The mud weight was not affected by M. oleifera concentration (10.03-10.63 pounds per gallon (ppg)). pH of the formulated mud decreased by 28% with increasing concentration of the M. oleifera leaves. The highest PV (33cP) was recorded by mud with 1% M. oleifera leaves at 50ºC while the least value (22cP) was given by control mud at 70ºC temperature. Highest YP (57 1b/100ft 2 ) was recorded by mud sample with 4% concentration of M. oleifera leaves while 1% gave the lowest YP value of 91b/100ft2 at 30ºC and Original Research Article

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Section: Rheological Propertiessupporting

confidence: 52%

Improving the Rheological Properties of Water Based Mud with Moringa oleifera Leaves

Biwott

Akaranta

Kiprop

et al. 2019

CSIJ

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“…In this investigation, the combination of the Herschel-Bulkley model, the power law and Bingham plastic models was chosen. Figure 3b shows the Model 1100 pressurized viscometer and laptop computer (Akpan et al 2019). The Herschel-Bulkley is a three-parameter model (Mitchel and Miska 2011):…”

Section: Experimental Apparatus and Proceduresmentioning

confidence: 99%

“…The drilling muds were poured into aging cells and pressurized at the temperature of the boiling point of water and above to maintain the fluids in a liquid state. Figure 3d shows the aging cells (Akpan et al 2019). The aging cells were used for both static and dynamic aging of the mud formulations.…”

Section: Experimental Apparatus and Proceduresmentioning

confidence: 99%

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Enhancing the performance of xanthan gum in water-based mud systems using an environmentally friendly biopolymer

Akpan

Enyi

Nasr

2020

J Petrol Explor Prod Technol

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Xanthan gum is commonly used in drilling fluids to provide viscosity, solid suspension, and fluid-loss control. However, it is sensitive to high temperatures and not tolerant of field contaminants. This paper presents an experimental study on the effects of an eco-friendly biopolymer (diutan gum) on xanthan gum (XC) in a water-based bentonite mud. Laboratory experiments were carried out for different compositions of the biopolymers in water-based bentonite muds formulated without salt and in water-based bentonite muds containing sodium chloride (NaCl). The rheological properties of the water-based bentonite muds formulated with XC (2 Ibm) and those of the water-based bentonite muds prepared using XC (1Ibm) and diutan gum (1Ibm) were measured using Model 1100 viscometer after aging at 25 °C, 100 °C, and 120 °C for 16 h. The API fluid loss and filter cake of the mud formulations were measured using HTHP filter press. The properties of the water-based bentonite muds containing only XC were compared with those of the water-based bentonite muds containing XC and diutan gum. Presented results show that combining diutan gum and xanthan gum in a ratio of 1:1 in a water-based bentonite mud enhances its performance with respect to fluid properties-apparent viscosity, gel strength, yield points, YP/PV ratio, LSRV, n, and K. The fluid formulations also showed favorable mud cake building characteristics. Experimental data also indicate a 16%, 19%, and 34% reduction in API fluid loss values for the water-based benitoite muds containing XC in the presence of diutan gum after aging at 25 °C, 100 °C, and 120 °C for 16 h, respectively. Experimental results also show that the waterbased benitoite mud containing XC and diutan gum would cause less formation damage and was tolerant of contamination with a monovalent cation (Na +). The synergy of xanthan gum and diutan gum can, therefore, improve the performance of water-based drilling fluids.

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“…Drilling fluid, which is the blood of drilling engineering, is a complex multilevel dispersion fluid. Since the application of clear water natural pulping as drilling fluid during the period from 1904 to 1921, it has successively experienced the start-development-improvement-redevelopment stage [1][2][3][4][5][6]. Over more than a century of relentless development, over 100 varieties of drilling fluid systems have been developed, which has played a critical role in reducing drilling complications, exploring reservoirs, boosting yield, preventing complicated downhole conditions or accidents, and dealing with various extreme conditions.…”

Section: Introductionmentioning

confidence: 99%

Research and Application of New Technology of Bionic Enhanced Wellbore and Strong Lubrication Water-Based Drilling Fluid

et al. 2020

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After more than a century of development, drilling fluid technology has become capable of dealing with various extreme conditions. As the exploration and development targets shift towards complex oil and gas resources, however, the geological and surface conditions encountered get increasingly complex, which poses a greater challenge to drilling fluid. In this paper, bionics is introduced into the field of drilling fluids, imitating the characteristics, functions, structures, and principles of mussels and earthworms, and a bionic wall-fixing agent with side chains containing catechol functional groups to strengthen the wellbore is prepared. A bionic bonding lubricant that when making the direct friction between the two is changed to the sliding between the membranes is prepared. Compared with the advanced technology introduced from abroad, the strength of the rock is not only reduced but increased by more than 14%, the friction reduction rate is improved by 12.3%. Their mechanism of action and influencing factors are revealed from the macro and micro perspectives. Combined with the formation conditions encountered, other treatment agents are applied to develop a novel technology of bionic strengthened borehole and high lubricity water-based drilling fluid with comparable inhibition and lubricity to oil-based drilling fluid. In comparison with technology, the rate of well collapse is reduced by as much as 82.6%, the accident rate of stuck pipe is brought down by as much as 86.4%, the complication of stuck block is reduced by as much as 79.7%, and the overall cost is lowered by more than 30%. It is truly a safe, efficient, economic, environmentally friendly drilling fluid technology.

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Water-based drilling fluids for high-temperature applications and water-sensitive and dispersible shale formations

Cited by 99 publications

References 28 publications

Improving the Rheological Properties of Water Based Mud with Moringa oleifera Leaves

Improving the Rheological Properties of Water Based Mud with Moringa oleifera Leaves

Enhancing the performance of xanthan gum in water-based mud systems using an environmentally friendly biopolymer

Research and Application of New Technology of Bionic Enhanced Wellbore and Strong Lubrication Water-Based Drilling Fluid

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