A selection of emulsifiers for preparation of invert emulsion drilling fluids

Islamov, Shamil; Bondarenko, A. V.; Mardashov, D.V.

doi:10.1201/9781003014638-2

Cited by 14 publications

(12 citation statements)

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“…It is important to note that the abovementioned chemical agents can also be used in other field operations which are not related directly to EOR. Polymers, for example, can be used for preparing drilling fluids (Islamov et al, 2019;Leusheva, 2022), reducing sand production (Tananykhin et al, 2022(Tananykhin et al, , 2023, decreasing pipe friction, and for various other operations (Ghosh et al, 2022). Similarly, surfactants find app-Fig.…”

Section: Introductionmentioning

confidence: 99%

A novel integrated methodology for screening, assessment and ranking of promising oilfields for polymer floods

Podoprigora,

Byazrov,

Lagutina

et al. 2024

Adv. Geo-Energy Res.

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Section: Introductionmentioning

confidence: 99%

A novel integrated methodology for screening, assessment and ranking of promising oilfields for polymer floods

Podoprigora,

Byazrov,

Lagutina

et al. 2024

Adv. Geo-Energy Res.

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“…The WBMs fall into two broad categories: non-dispersed and dispersed. Simple water-gel systems used for drilling of upper intervals in the well are non-dispersed, unlike many advanced polymer systems with low or zero bentonite content [23,24]. Natural clays that enter undispersed systems during drilling are subjected to dissolving, encapsulation and/or flocculation.…”

Section: Introductionmentioning

confidence: 99%

Barite-Free Muds for Drilling-in the Formations with Abnormally High Pressure

Leusheva

Alikhanov

Morenov

2022

Fluids

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This paper discusses problems associated with water-based drilling fluids used for drilling formations with abnormally high pressure. The available solutions are suitable for a narrow range of applications, especially when weighted muds should be used. This paper reviews the experience of searching and developing a new type of drilling mud based on saturated brines. With the referenced papers as the basis, the authors developed compositions of such brine-based drilling muds. A distinctive feature of the considered compositions is the absence of barite, which is often used as a weighting agent. The paper presents a methodology for creating and investigating the proposed drilling fluids. The rheological properties and thermal stability of the muds at various temperatures were studied. The results show that proposed drilling fluids can be efficiently used for drilling formations with abnormally high pressure. It is assumed that the developed muds have greater versatility than analogues.

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“…These molecules contain some cyclic and aromatic hydrocarbons. Paraffin wax can exist in different phases, either gas, liquid, or solid, subject to the temperature and pressure of a specific condition [10][11][12][13]. At temperatures bellows the wax appearance temperature, hereinafter referred to as the WAT, crystals of organic wax will form either in the bulk fluid or on cold surfaces of equipment, consequently fouling the surface.…”

Section: Introductionmentioning

confidence: 99%

An extensive solution to prevent wax deposition formation in gas-lift wells

Nguyen¹,

Александров²,

Рогачев³

2022

J Appl Eng Science

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In recent years, an insurmountable problem in high-wax oil production has been the intensive formation of organic deposits in the bottom-hole zone of the formation, downhole and surface equipment, leading to a dramatic loss in wells production, transportation capability, and subsequently has a detrimental effect on efficiency. Gas-lift is a widely used method, where compressed high-pressure gas is injected through the tubing annulus. Consequently, the current fluid level in the annulus decreases and increases in the tubing string. The compressed gas enters the tubing through gas-lift valves, mixing with the liquid. During production, changes in pressure, temperature, and fluid composition along the well bore highly depend upon the compressed gas injected into the well. At temperatures below the wax appearance temperature, organic wax crystals will form either in bulk volumes of fluid or on cold surfaces of equipment, consequently, covering the surface. Wax formation is a hazardous and costly task in the oil and gas industry, especially when operating gas-lift wells. Hence, the prevention of wax formation in gas-lift wells is of utmost importance. Although, numerous methods have been implemented to handle the wax formation problem in recent decades, questions concerning their economic viability as well as their effectiveness remain relevant. In this paper, a complete algorithm for determining changes in the oil component composition in a gas-lift well during the injection of associated petroleum gas is detailed. The obtained results play a pivotal role in the study of wax deposition. A technological scheme has been developed to prevent wax deposit formation in the tubing strings during gas-lift well operation. A simulation using the introduced process and technology has been run, and an observed result obtained. After running the simulation, we determined the optimal composition of the associated petroleum injection gas based on the required flow rate of the working agent and the lowest value of the wax appearance temperature. This method offers potential solutions to increasing gas-lift well production efficiency under complex wax formation conditions.

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A selection of emulsifiers for preparation of invert emulsion drilling fluids

Cited by 14 publications

References 0 publications

A novel integrated methodology for screening, assessment and ranking of promising oilfields for polymer floods

A novel integrated methodology for screening, assessment and ranking of promising oilfields for polymer floods

Barite-Free Muds for Drilling-in the Formations with Abnormally High Pressure

An extensive solution to prevent wax deposition formation in gas-lift wells

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