Results 21 to 30 of about 73,102 (307)
Scientific basis for safely shutting in the Macondo Well after the April 20, 2010 Deepwater Horizon blowout [PDF]
, 2012 As part of the government response to the Deepwater Horizon blowout, a Well Integrity Team evaluated the geologic hazards of shutting in the Macondo Well at the seafloor and determined the conditions under which it could safely be undertaken.
C. B. Enomoto +12 more
core +2 more sources
Rheological Evaluation of Compatibility in Oil Well Cementing
Applied Rheology, 2017 In primary cementing of an oil well, the oil-based drilling mud (lubricant) is displaced by sequential pumping of an aqueous surfactant ‘spacer’ fluid, and then the aqueous cement slurry.
Choi Myoungsung +2 more
doaj +1 more source
Lessons Learnt from the Development of Cementitious Grouts for Deep Borehole Disposal Applications [PDF]
, 2017 The performance of grouts made using oilwell cement is markedly different above 90°C than at lower temperatures, and the rapidity with which grouts thicken can cause failures in well cementing.
Collier, N.C. +2 more
core +1 more source
Application of precise MPD & pressure balance cementing technology
Natural Gas Industry B, 2018 The precise managed pressure drilling (MPD) technology is mainly used to deal with the difficulties encountered when oil and gas open hole sections with multiple pressure systems and the strata with narrow safety density window are drilled through.
Yong Ma +4 more
doaj +1 more source
Anti-channeling cementing technology for long horizontal sections of shale gas wells
Natural Gas Industry B, 2018 Large-scale hydraulic fracturing combined with horizontal well drilling is the key technology in shale gas development. But poor cementing quality is a crucial bottleneck restricting well completion and reservoir stimulation. In this paper, the shale gas
Changqing Zhao +7 more
doaj +1 more source
Estimation of cement thermal properties through the three-phase model with application to geothermal wells [PDF]
, 2018 Geothermal energy has been used by mankind since ancient times. Given the limited geographical distribution of the most favorable resources, exploration efforts have more recently focused on unconventional geothermal systems targeting greater depths to ...
Falcone, Gioia +2 more
core +1 more source
Rheology and Stability of Saudi Cement for Oil Well Cementing
Journal of King Saud University: Engineering Sciences, 1989 The suitability of some locally produced cement for oil well cementing has been investigated by means of chemical and physical analyses of powder cement, rheology and thickening time of slurries, and the compressive strength of set cement.
A.S. Dahab, A.E. Omar
doaj +1 more source
Известия высших учебных заведений: Нефть и газ, 2016 This paper describes the issues of well cementing quality, service life and types of repairs for restoration of failed leak tightness of casing strings and cementing.
A. A. Zalyatdinov, L. B. Huzina
doaj +1 more source
Possibilities of Limiting Migration of Natural Gas in Boreholes in the Context of Laboratory Studies
Energies, 2021 Gas migration through fresh and hardened cement slurry is an ongoing problem in the oil industry. In order to eliminate this unfavourable phenomenon, research is being conducted on new compositions of slurries for gas wells.
Marcin Kremieniewski +3 more
doaj +1 more source
Energies, 2023 Ensuring effective sealing of casing columns in boreholes requires the use of the appropriate technology of cement slurry injection into the annular space and the use of a properly designed cement slurry recipe.
Stanisław Stryczek +3 more
doaj +1 more source