MODEL OF PNEUMOMETRIC DENSITY METER FOR MEASURING THE DENSITY OF DRILLING SOLUTIONS OF OIL AND GAS WELLS
DOI:
https://doi.org/10.31471/1993-9981-2021-1(46)-15-24Keywords:
pneumometric densitometer, drilling mud, error, measurement, model, pressure, flow, liquid.Abstract
The development of automatic pneumometric densitometers is promising not only for drilling fluids. They can be used in the food, chemical, refining, oil depots and storage facilities. Based on them, you can build systems for quantitative accounting of liquid products in units of mass. Possessing high accuracy, pneumometric densitometers are simple and reliable, convenient in operation and, most importantly, are completed with the elements serially issued by the industry.
The article presents a block diagram of a differential pneumometric densitometer with ballast pressure compensator in the minus pneumoline and shows the calculation which shows that the main source of error is the pressure loss in the pneumolines, zero drift of the differential pressure gauge, cancellation of real values of static coefficients from differential. It is pointed out that in order to find the value of pressure and flow at each point of the pneumoline, even for simple models, it is necessary to make complex calculations. An analytical solution can only be obtained for individual cases that are of no practical value.
Therefore, for the analysis of a pneumoline of a densitometer it is most rational to use a method of electrohydraulic analogy (EGDA) and to pass from a pneumatic line with the distributed parameters to similar electric with rarefied parameters. We obtained a model of a pneumometric densitometer in the form of an electrical circuit, which requires further research, electrical engineering methods, to clarify the coefficients and parameters of the model and check its adequacy.
Downloads
References
Shavranskyi M. V. Systema kontrolju dlja zapobihannja prychoplen burylnoi kolony v prozesi burinnja: avtoref. dys. na zdobuttja stupenja kand. techn. nauk: spez.05.11.13 «Prylady i metody kontrolju ta vyznachennja skladu rechovyn» / Shavranskyi Mychajlo Vasyljovych; Ivano-Frankiv.naz.techn.un-t nafty i gazu. Ivano-Frankivsk, 2003. 20 s.
Kravez M.Z., Mironov V.P. Metody i sredstva avtomaticheskoho izmerenija plotnosti byrovych rastvorov. – M.: VNIIOENG, 1989. (Obzor. inform. Ser. «Avtomatisazija i telemechanizazija v neftjanoj promyshlenosti»)
Isakovich R.Ja. Technologicheskie izmerenija i pribory. M.:Nedra, 1979. 344 s.
Kulikovskyj K.L., Kuper V.Ja. Metody i sredstva izmerenija. M.: Energoatomizdat, 1986. 448 s.
Ibragimov I.A., Farzane N.G., Iljasov L.V. Elementy i sistemy pnevmoavtomatyky. M.: Vysshaja shkola, 1985. 544 s.
http://manometr.net.ua [Електронний ресурс]:[Інтернет-портал]. – Манометр – полная картина жизни. – [Харьков: ООО Енергопром Украина]. – Режим доступу: http://manometr.net.ua (дата звернення 01.04.2021) – Назва з екрану.
http://www.avtomatica.org [Електронний ресурс]:[Інтернет-портал]. – Автоматика. – [Харьков: ООО Енергопром Украина]. – Режим доступу: http://www.avtomatica.org (дата звернення 01.04.2021) – Назва з екрану
Kostyshyn V.S.Modeluvannja rezymiv roboty vidzentrovanych nasosiv na osnovi elektrogidravlichnoi analogii: avtoref. dys. na zdobuttja stupenja d-ra techn. nauk: spez. 05.15.13 «Naftogazoprovody, bazt ta schovyscta»/Kostyshyn Volodymyr Stepanovych; Ivano-Frankiv.naz.techn.un-t nafty i gasu. Ivano-Frankivsk, 2003. 31 s.
Zalmanov L.A. Teorija elementiv pnevmoavtomatyky. М.: Nauka ,1969.-177 с.
Popov D.N. Nestazionarnye gidrodinamicheskie prozessy. М.: Маshinostoenije, 1982.239 s.
Kolchunov V.I. Teoretychna ta prykladna gidromechanika: Navch.posibnyk. К.:NАU, 2004. 336 s.
Laptev V.I. Barbotazno-pjezometricheskije metody kontrolja fiziko-chimicheskich svojstv zidkostej. M.: Energoatomizdat, 1984. 80 s.
.png)
