Results 11 to 20 of about 828,080 (265)

Scientific justification of the perforation methods for Famennian deposits in the southeast of the Perm Region based on geomechanical modelling

open access: yesЗаписки Горного института, 2022
The article presents the results of analysing geological structure of the Famennian deposits (Devonian) in the Perm Region. Numerical modelling of the distribution of inhomogeneous stress field near the well was performed for the two considered types of ...
Sergey E. Chernyshov   +5 more
doaj   +1 more source

System solution for technological problems of well construction completion. [PDF]

open access: yesНанотехнологии в строительстве, 2018
The paper highlights the factors impeding the technology of well cementing in the well construction process, summarizes the indicators and problems of casing cementing job quality.
POLYAKOV Vladimir Nikolayevich   +5 more
doaj   +1 more source

A Workflow for Optimization of Flow Control Devices in SAGD

open access: yesEnergies, 2019
In McMurray Formation, steam assisted gravity drainage is used as the primary in-situ recovery technique to recover oil sands. Different geological reservoir settings and long horizontal wells impose limitations and operational challenges on the ...
Anas Sidahmed   +2 more
doaj   +1 more source

Selective Water Plugging Technology for Horizontal Well with Screen Completion

open access: yesEnergies, 2021
The SD107 gel system developed has good oil–water phase selective gelation and oil–water phase selective blocking properties. The static gel-forming experiment results showed that the gel water shutoff system formulated with oilfield reinjection water ...
Bo Deng   +7 more
doaj   +1 more source

Data-Driven Proxy Models for Improving Advanced Well Completion Design under Uncertainty

open access: yesEnergies, 2022
In order to improve the design of advanced wells, the performance of such wells needs to be carefully assessed by taking the reservoir uncertainties into account.
Ali Moradi   +2 more
doaj   +1 more source

A selection method of the horizontal wells completion [PDF]

open access: yesActa Montanistica Slovaca, 2006
The completion of horizontal wells can be done by different ways and depends on production constraints and the reservoir characteristics.The selection of a completon method is directly influenced by the degree of rock consolidation, the need for water or
Ivica Ristović   +2 more
doaj  

Efficiency evaluation for nanomaterials applied in well bottom zone treatment after completion of well construction [PDF]

open access: yesНанотехнологии в строительстве, 2017
Efficient development of low production wells is not possible without the bottom zone treatment, both during the well development phase when its construction is completed and in the process of flow rate reduction during the operation phase.
GREZINA Olga Anatolyevna,
doaj   +1 more source

Structure Optimization for High-Temperature High-Pressure Well Completion

open access: yesShiyou jixie, 2023
According to the operational requirements of ultra-deep, ultra-high-pressure and ultra-high-temperature wells in Shunbei oil and gas field,a mechanically retrievable test packer suitable for the 139.7 mm(5 1/2 in)casing was designed, with the inside ...
Wang Long
doaj  

Design and field-scale demonstration of the buoyant-kill process for restoring integrity of wells with sustained casing pressure

open access: yesFrontiers in Energy Research, 2023
Sustained Casing Pressure (SCP) is the persistent casinghead pressure resulting from the well’s annular integrity loss and migration of gas above the leaking cement sheath.
Efecan Demirci, Andrew Wojtanowicz
doaj   +1 more source

Protection of hotwater line of geothermal water from wells GTD-1,2,3 in Ďurkov [PDF]

open access: yesActa Montanistica Slovaca, 2006
The geothermal energy nowadays belongs to the most interesting, renewable, progressive and ecologically pure energies. Its utilization began long ago, but because the development and exploration show that fossil fuels are depletable in 40 – 50 years, it ...
Gabriel Wittenberger
doaj  

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