... of the existing formation stimulation technologies improvement. The technical limit in completion is about to be reached. It becomes obvious that existing stimulation technologies do not allow creating more efficient "reservoir factories" in the Bazhenov formation. The paper's objective is an attempt to identify...

... of well productivity have been evaluated. hpht upstream oil & gas condensate reservoir drillstem testing hydraulic fracturing drillstem/well testing stimulation acid treatment high pressure high temperature well productivity achimov deposit reservoir pressure condensate dropout flow...

... after hydraulic fracturing or during well operation. The result of monitoring the flow rate of oil wells with multi-stage fracturing showed a decrease in productivity in the range of 55-75% for the first 2 years. In most cases, repeated stimulation is necessary, as there is a loss of productivity due...

..." with the aim to select the most suitable technology to address the above-mentioned goals without sacrifice of time required to drill, complete and stimulate the well. As the result of the analysis the technology of the frac valves activated by single-sized dissolvable balls was selected as a most appropriate...

... Abstract The article describes the main ideas of the integrated approach to the use of matrix-stimulation methods in the oilfields with sandstone reservoirs. LLC Gazpromneft scientific and technology center as the basis of the project "Optimal matrix stimulation methods" undertook the joint...

...–requires heavy investments and significant intellectual assets. The main challenge of nowadays’ is to find effective stimulation methods to enhance production from the domanik sediments. Development of technologies that can give insight into the reservoir dynamics to make decisions on the optimum...

... conditions. For assessment of stimulation efficiency, different techniques can be used: decline curve analysis (DCA), production rates analysis before and after stimulation, analysis of reservoir properties in the near-wellbore zone and in the reservoir using pressure build-up (PUB) curves. Each technique...

... Abstract The main challenges in the development of terrigenous reservoirs of the Yuzhno-Priobskoye field include the search and implementation of technological approaches and solutions that allow the most effective stimulation of reservoirs in conditions of low permeability. The complicating...

... and cluster spacing in stimulation technology by piloting – a trial approach. However, this approach tends to be time consuming and cost significant amount of money. As the fracturing modeling and stimulation technology advances, we question: "Can we use the fracturing modeling and reservoir simulation...

... in conventionals will be useful to collect experience for designing future treatments. hydraulic fracturing stimulation crosslinked gel russia fracturing materials upstream oil & gas proppant concentration linear gel successful implementation fracturing fluid sandstone conductivity reservoir...

... this issue, the acid matrix stimulation is widely used in carbonate reservoirs. In order to design and optimize stimulation treatments the simulation modeling is widely used nowadays. One of the critical issues, which influence the stimulation efficiency, is estimation of near wellbore damage zone parameters...

... enhanced recovery Efficiency thermal method Upstream Oil & Gas SAGD stimulation usinskoye oilfield chemical composition injection injection oil production composition oil production rate permian-carboniferous deposit steam-assisted gravity drainage steam injection cycle steam...

... the effect of the primary and repeated fracturing. The module takes into account the increase in the number of frac stages, fracture half-length and width, it allows to estimate the risks of clay barriers breakthrough, evaluate reservoir properties, and select the stimulation option. To select wells for Hz...

... multistage frac technology hydraulic fracturing liner operation multistage fracturing stimulation assembly horizontal well proppant liner assembly fracture hydrosand-blast perforation Gazprom Neft Upstream Oil & Gas Multistage Frac coiled tubing packer society of petroleum engineers...

... Abstract Enhanced oil recovery methods, i.e. acid stimulation, are widely used to increase well productivity in oilfield development. The necessity for reservoir stimulation is linked with negative processes related to well drilling and perforation. The correct estimation of damaged zone...

... fissuring which is so dense and branched that it forms a self-sufficient artificial reservoir. Such large-volume artificial reservoirs made in shale rocks are often called "SRV" or "stimulated reservoir volume". They may only be made using state-of-the-art hydraulic fracturing technologies that are used...

... hole using polyglycols and SAA containing compound. 2 1 7 1 7 , 0 2 1 7 1 7 , 1 84 76 A 3 Complex technology of eater shut-off and gas production stimulation based on silicate containing reagent 2 5 0 1 7 , 0 2...

... breakthrough. Another challenge that is faced primarily during development of oil-rim (sub-gas) reservoirs is the selection of the most suitable completion designs. An outstanding example of oil rim stimulation was a project in Novoportovskoye field where an operator faced with a complex geological model...

... production, the heterogeneous low-permeability Achimov formation of the Urengoiskoe field requires stimulation with high-volume hydraulic fracturing. Shales acting as stress barriers are present within the reservoir, dictating the necessity of fracture geometry monitoring and design accounting for local...

...) allows performing a combined thermal stimulation on a layer. In one m 3 of 70 percent binary mixture solution mixed in equimolar ratio, the reaction results in generation of 1875 MJ of heat energy while the aqueous solution temperature can increase up to 400-450 °C. Simultaneously 6248 kmol of nitrogen...