..., which leads to the failure of drilling pipes, makes it possible to manage this process, significantly reduce the cost of maintenance of the drilling pipe fund and reduce incidents with drilling pipes. drillstring design drilling pipe information operation drilling tool upstream oil & gas...

... complicated issues such as circulation losses and well control. It was complexified with high hydrogen disulfide concentration in reservoir oil which was a health hazard to a site personnel. As a result, to eliminate all complications, resources and operational time were needed. To prevent and eliminate...

... of the well operation control data are becoming increasingly important. As a result, SPD has successfully implemented the project of using annular pressure sensors in combination with machine learning models to control the well annular pressure as part of the field development program compliance. Under...

... inflows. As a result, most of such wells are getting abandoned. It was assumed that complications in this formation occurs due to the narrow safe pressures’ operating window (ECD window), therefore, the managed pressure drilling technology (MPD) was initially used as a solution to this problem. However...

... resistance dielectric constant frequency emulsion water cut meter characteristic sensor fluid dynamics impedance flow structure pipeline voltage electrode upstream oil & gas equivalent circuit flow rate composition operation water cut gas content fraction Introduction Current...

... developed. Field-wide optimisation for Samotlorneftegaz is non-trivial due to the sheer size, with over 9,000 active wells and due to continuously transient operations arising from frequent well-work, well shut-in's, new well delivery, pipeline modifications and cyclic mode of operations in some wells...

... identification was developed. The methodology has been tested in the real conditions of the East-Messoyahskoe oil field. The first results have been received, which confirm the operational efficiency of the developed methodological approach. All wells were rated according to their breakthrough risk, and measures...

... Abstract The presented article is dedicated to creation and testing of probabilistic ensemble computational tool for operational forecasting of well production in short term (STF). The ensemble consisted of models based on such physical and mathematical tools as: the equation of non-stationary...

... Abstract One of the most common complications in the operation of wells with electric submersible pumps (ESP) is the presence of free gas in the produced well product. The work considers a model of ESP operation taking into account a large share of free gas in the flow obtained on the basis...

... studies of the formation fluid, allowing timely implementation of the necessary measures. Geochemical studies allow identifying the source of fluid entering the well, determining a violation in the wellbore structure, checking the tightness of downhole equipment for separate operation, and performing...

... (CGF) for each well of the field to select the operating modes. Often, there is no sufficient well surveying data as these surveys are conducted not frequently enough. The paper presents an approach that allows monitoring the CGF for each well in real time and control the operating modes of the wells...

... objectives, constraints, as well as to optimize operationally the production plan with any number of activities. For the first time optimization with operational planning of certain types of functional plans at an oil operator was considered. As a result of the optimization of the integrated planning...

... of natural gas, which are concentrated in five reservoirs. The Novoportovskoye field is the northernmost and largest on the Yamal Peninsula, but the complexity of its development and operation is caused not so much by geography and the lack of transport infrastructure but by the presence of a gas cap, low...

... of proppant balls during the operation of a well with a fractured hydraulic fracturing. proppant deviation coefficient fraction destruction fracturing materials upstream oil & gas proppant ball fracturing fluid conductivity analytical model dependence hydraulic fracturing calculation...

... Abstract Simulators in the petroleum industry have been used mainly for training purposes even though they present different applications like digital twins. In this regard, a simulator must approximate the well environment to reflect operative actions and reactions. This paper describes a case...

... decisions and in the operational work of the engineering and technical service. The IAM includes simplified models of reservoirs, models of wells and gathering systems, as well as simplified models of plants. The resulting model can produce short-term assumptions regarding production levels (up to 1 year...

... than the amount exerted by e-line RT. Moreover, while operating with CT, the fluid must be pumped to the well through CT to enable the downhole milling motor to cool while milling out frac balls and baffles. This massive amount of fluid volumes can be lost into the formation which later needs...

... treatments of wells that operate the specified reservoir, two technologies of chemical flow divertion (using a gelled acid (GA) and a self-diverting acid (SDA) are considered in the paper. It was revealed that during acid treatments using SDA a longer exposure time of the reagent in the bottom-hole zone...

... and the analysis of the subsequent production of these wells is the purpose of this work. drillstem testing re-fracturing multistage fracturing upstream oil & gas hydraulic fracturing fracturing fluid concentration operation cross-linked gel geomechanical model friction reducer horizontal well...

... Executive Summary The recently developed Samotlor 2020 campaign includes a requirement to shift the Frac design to synthetic gelling agent (gellant) which would increase production, keep the reservoir clean and also reduce both capital and operational costs for each stage Frac stage (no need...