Development of an automated system of control over a drilling mud pressure at the inlet to a well

Lahoida, Andrii; Boryn, Vasyl; Sementsov, Georgiy; Sheketa, Vasyl

doi:10.15587/1729-4061.2020.209844

Cited by 3 publications

(2 citation statements)

References 12 publications

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“…During hydrodynamic treatment, the fluid flow is subjected to impact force loads of variable frequency with a simultaneous increase in speed and a change in the direction of its movement [11,12]. This contributes to breaking the molecular bonds between the elements of the dispersed phase and maintaining the dispersity and homogeneity of the entire liquid volume [13,14].…”

Section: Research Of Existing Solutions To the Problemmentioning

confidence: 99%

Control and regulation of the density of technical fluids during their transportation by sea specialized vessels

Maryanov

2022

TAPR

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The object of research is the process of transporting drilling slurry through specialized marine vessels of the Platform Supply Vessels class. The subject of research is the sedimentation stability of the drilling slurry along the height of the cargo tank, which is proposed to be defined as a relative change in vertical density near the surface and bottom of the cargo tank. The studies were carried out on a specialized sea vessel with a displacement of 7320 tons. The design of the vessel provided for the reception and transportation of drilling slurry in four cargo tanks located on the port and starboard sides of the vessel. It has been experimentally established that during the 48-hour transportation, the density of the drilling slurry in the bottom part increases to 19.7 %; decrease in density on the surface – up to 7.8 %; decrease in the sedimentation resistance of the drilling slurry along the depth of the cargo tank – up to 29.85 %. A variant of modernization of the drilling slurry transportation system by installing additional circulation pumps providing forced circulation of the drilling slurry between cargo tanks is proposed. By using programmable microcontrollers (performing turning on/off the circulation pumps), it is possible to provide the following conditions for transporting the drilling fluid: an increase in the density of the drilling fluid in the bottom part up to 0.3 %; decrease in density on the surface – up to 0.25 %; decrease in the sedimentation resistance of the drilling slurry along the depth of the cargo tank – up to 8.01 %. It has been experimentally established that the creation of additional circulation and automatic support of the sedimentation resistance of the drilling fluid in the range of 2–7 % contributes to: – increasing the relative performance of cargo pumps from 38–55 % to 92–96 %; – reducing the time of pumping drilling slurry from cargo tanks to the drilling platform from 7.1 to 3.2 hours; – maintaining the technical condition of equipment, pipelines and elements of the drilling slurry transportation and pumping system.

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Section: Research Of Existing Solutions To the Problemmentioning

confidence: 99%

Control and regulation of the density of technical fluids during their transportation by sea specialized vessels

Maryanov

2022

TAPR

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“…The functional properties of drilling fluids include the provision of lubrication, cooling and anti-corrosion action on the drilling tool [2,3]. Drilling fluid is a complex multicomponent dispersed system, the dispersed medium of which is a lubricant of petroleum origin, and various organic and inorganic compounds are used as the dispersed phase, the specific gravity of which exceeds the specific gravity of the lubricant [4,5]. Depending on the type and amount of these compounds, drilling fluids have different physical (primarily density and viscosity) and rheological (primarily shear resistance and fluidity) characteristics [6,7].…”

Section: Introductionmentioning

confidence: 99%

Development of a method for maintaining the performance of drilling fluids during transportation by Platform Supply Vessel

Maryanov

2021

TAPR

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The object of research is the process of transportation of drilling fluid used for lubrication and cooling of drilling equipment of offshore oil production platforms. The subject of the study is the stratification of the density of the drilling fluid along the height of the cargo tank in which it is transported. The technology of transportation of drilling fluid on the Platform Supply Vessel is considered. A problematic point in ensuring this process is that during the transportation of drilling fluids, due to the action of gravitational forces on organic and inorganic compounds in their volume, there is a latent change in their dispersion over the volume of the fluid. This leads to the stratification and stratification of the fluid density along the height, as well as to the formation of sediments at the bottom of the cargo tanks, in which the drilling fluid is transported. The study is aimed at developing a technology that maintains a constant value of the density of the drilling fluid along the depth of the tank in which it is transported. The studies were carried out in the vessel system for transporting drilling fluid of a specialized marine vessel of the Platform Supply Vessel type with a deadweight of 5850 tons. It is experimentally established that for a transportation time of 6–36 hours, the density stratification of the drilling fluid is 3.04–32.04 %. As a method that ensures the minimum stratification of the density of the drilling fluid during its transportation, it is proposed to use an additional X-shaped circulation of the drilling fluid in the volume of adjacent cargo tanks. Studies have confirmed that the density stratification over a time period of 6–36 hours decreases to a range of 2.30–9.01 %. The complex use of additional X-shaped circulation and simultaneous air supply to the bottom of the cargo tank provides a density stratification value of 0.73–2.93 %. The proposed technology was tested on a specialized seagoing vessel of the Platform Supply Vessel type with a deadweight of 5850 tons and can be used on offshore vessels that ensure the operation of offshore oil production platforms.

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Control and Regulation of the Density of Technical Fluids during Their Transportation by Sea Specialized Vessels

Maryanov¹

2022

SSRN Journal

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Development of an automated system of control over a drilling mud pressure at the inlet to a well

Cited by 3 publications

References 12 publications

Control and regulation of the density of technical fluids during their transportation by sea specialized vessels

Control and regulation of the density of technical fluids during their transportation by sea specialized vessels

Development of a method for maintaining the performance of drilling fluids during transportation by Platform Supply Vessel

Control and Regulation of the Density of Technical Fluids during Their Transportation by Sea Specialized Vessels

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