Trial of liquidation cementation of boreholes at Carpathians oil and gas deposits
M. Kovalchuk
Ivano-Frankivsk National Technical University of Oil and Gas (Ukraine)
B. Tershak
Ivano-Frankivsk National Technical University of Oil and Gas (Ukraine)
L. Cheliadyn
Ivano-Frankivsk National Technical University of Oil and Gas (Ukraine)
Kh. Sobol
Lviv Polytechnic National University (Ukraine)
V. Terlyha
Lviv Polytechnic National University (Ukraine)
Abstract
Complex geological structure as well as long-term intensive operation of oil and gas deposits in Borislav-Pokutska zone of Carpathians leads to changes in thermo-dynamical parameters of pools, rock deformation and, as a result, to crippling of the boreholes and creasing and damaging of boring casing. The abovementioned actions not only complicate extraction of oil and gas but increase the technological charge on the environment. In this study 3 types of materials were investigated: PCT-I-100 – traditional tamping cement, CREA and CREA-LF tamping mixes produced by dry mixing technology that were designed by authors. Dry mixes are characterized by higher level of SiO2 because of addition of milled sand and provide better cementation quality. Developed materials are characterized by lower dehydration and water reduction, thanks to clearly chosen composition and modern chemical admixtures usage. The method of borehole eliminative cementation is also presented by authors.
Keywords:
borehole, dry plugging mixes, cementation, dehydration, chemical admixtures, boring casingReferences
Nafta i gaz Podkarpacia. Zarys Historii. Instytut Nafty i Gazu (Krakow), Naukowa Dumka (Kijow), 2004, pp. 570.
Google Scholar
Bulatov A.I., Proselkov Yu. M., Shamanov S.A., Technika i technologiya bureniya neftianyh i gazovyh skvagin. M.: OOO “Nedra-Biznescentr”. 2003, pp. 1007.
Google Scholar
Tershak B.A., Sobol Kh.S., Kovalchuk M.B. Struktura tamponagnyh cementiv modyfikovanyh crentamy. NAN Ukrainy. – Fizyko-mechanichnyi instytut im. G.V. Karpenka. – Mechanika I fizyka ruinuvannia budivel’nyh materialiv ta konstrukciy. Zbirnyk naukovyh prac’. Vypusk №10., Lviv, „Kameniar”, 2014. pp.551-561.
Google Scholar
Sanytskyy M.A., Sobol Kh.S., Markiv T.Ye. Modyfikovani kompozyziyni cement. NU “Lvivs’ka polytechnica”. 2010, pp.130.
Google Scholar
Terlyha V., Sobol Kh., Tershak B. Modified oil-well cements for casing boreholes with abnormally low stratum pressure. 18-th international conference on building materials “18.Ibausil”. 12-15 September 2012. Weimar.
Google Scholar
Authors
M. KovalchukIvano-Frankivsk National Technical University of Oil and Gas Ukraine
Authors
B. TershakIvano-Frankivsk National Technical University of Oil and Gas Ukraine
Authors
L. CheliadynIvano-Frankivsk National Technical University of Oil and Gas Ukraine
Authors
Kh. SobolLviv Polytechnic National University Ukraine
Authors
V. TerlyhaLviv Polytechnic National University Ukraine
Statistics
Abstract views: 201PDF downloads: 104
License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Budownictwo i Architektura supports the open science program. The journal enables Open Access to their publications. Everyone can view, download and forward articles, provided that the terms of the license are respected.
Publishing of articles is possible after submitting a signed statement on the transfer of a license to the Journal.
