scholarly journals PHYSICAL MODELING FOR DENSITY MEASUREMENT OF NEAR-SURFACE ROCKS, BY WIRELINE LOGGING AND LOGGING WHILE DRILLING

2021 ◽  
pp. 35-41
Author(s):  
М. Bondarenko ◽  
V. Кulyk ◽  
O. Dmytrenko ◽  
S. Danyliv ◽  
O. Stasiv ◽  
...  
Keyword(s):  
Density Measurement ◽  
Carbonate Reservoirs ◽  
Physical Models ◽  
National Academy Of Sciences ◽  
Gas Wells ◽  
Near Surface ◽  
Cement Sheath ◽  
Logging While Drilling ◽  
Academy Of Sciences ◽  
Production Problems

The results of the creation of full-scale physical models of rocks for the calibration of combined tools of radioactive logging, which include density logging, are presented. Four sets of models were built for different logging problems. 1. Models of porous carbonate reservoirs with borehole (diameter 216 mm), equipped with interchangeable simulators of casing columns (146 mm і 168 mm) with cement sheath and tubing. The models are aimed to calibrate wireline logging tools for investigating the section of uncased and cased oil&gas wells. 2. Models of rocks of different density with borehole (160 mm), equipped with interchangeable drill collars (120 mm, 108 mm, 89 mm). The models are designed to calibrate density tools for logging while drilling horizontal oil&gas wells. 3. Universal models of porous carbonate reservoirs, crossed by holes of three diameters (200 mm, 160 mm, 125 mm). The purpose of the models is to calibrate wireline logging tools for investigation of section of uncased and cased oil&gas wells and tools for logging while drilling horizontal oil&gas wells. 4. Models of near-surface rocks of different density, equipped with a steel pipe (diameter of 51 mm) closely fitting to rock. The purpose of the models is to calibrate density tools for investigation of near-surface rocks when solving engineering-geological, seismic microzoning, ecological, etc problems. Physical models were designed and constructed by the employees of the Institute of Geophysics of the National Academy of Sciences of Ukraine together with partner organizations. The regular use of the models is due to the active work carried out by the Institute of Geophysics, together with partners, to create apparatus-methodical complexes of radioactive logging, which include the density logging. Graduation relationships and calibration functions for new density logging tools, obtained on the constructed physical models, as well as examples of density determination in different well conditions when solving research-and-production problems, are given.

Modification of Hypereutectic Silumin by Ion-Electron-Plasma Method

2018 ◽  
Vol 769 ◽  
pp. 54-59
Author(s):  
Maria E. Rygina ◽  
Yurii F. Ivanov ◽  
Alexander P. Laskovnev ◽  
Anton D. Teresov ◽  
Nikolay N. Cherenda ◽  
...  
Keyword(s):  
Plasma Deposition ◽  
Second Step ◽  
State University ◽  
Technical Institute ◽  
National Academy Of Sciences ◽  
Sliding Bearings ◽  
Near Surface ◽  
Aluminum Silicon Alloy ◽  
Ion Plasma ◽  
Academy Of Sciences

Hypereutectic silumin is aluminum-silicon alloy. It is widely used as the material for producing pistons and sliding bearings. The samples were obtained in Belorussian State University and in the Physical-Technical Institute of the National Academy of Sciences. The percentage of silicon is 18-20 wt.%. The structure has a large number of pores and cracks. The size of pores is 100 μm. The method of modification have been carried out in two steps. The first step is ion-plasma deposition ZrTiCu coating. The second step is melting the coating into the substrate. After modification microhardness is 3.2 GPa, wear resistance is 1.8 times less than in the untreated samples. The crystallites size is 0,2-0,4 μm. Thus, this method allows to obtain alloys in the near-surface layer, grinding the structure and increasing mechanical characteristics.

A NEW INTERNATIONAL PROGRAM: THE GEODYNAMICS PROJECT

Geophysics ◽  
1974 ◽  
Vol 39 (3) ◽  
pp. 357-357
Keyword(s):  
Earth Science ◽  
National Academy Of Sciences ◽  
Crust And Upper Mantle ◽  
Near Surface ◽  
International Program ◽  
Deep Crust ◽  
History Of ◽  
The Many ◽  
Academy Of Sciences ◽  
The U.S

The cooperation of members of the SEG could be of value to those involved with one program of the U.S. portion of the International Geodynamics Project—the endeavor to map the layers of the deep crust and upper mantle in areas of geologic interest. The Geodynamics Project, designed to exploit the many opportunities for new insights resulting from recent advances in earth science, is an international program of research on the dynamics and dynamic history of the earth with emphasis on phenomena that affect surface or near‐surface processes and structures. There are 49 countries participating, each with its own program. The development of the U.S. program is in the hands of the U.S. Geodynamics Committee, which was established in the National Academy of Sciences under the Geophysics Research Board with the support of the National Science Foundation. A report with full details of the organization, research objectives, and participants has been published and is available from the National Academy of Sciences.

Materials for the history of the gospel-Baptist movement in Ukraine

1996 ◽  
pp. 4-15
Author(s):  
S. Golovaschenko ◽  
Petro Kosuha
Keyword(s):  
Large Scale ◽  
Religious Studies ◽  
Theological Seminary ◽  
National Academy Of Sciences ◽  
Evangelical Christians ◽  
Evangelical Christian ◽  
First Results ◽  
History Of ◽  
Fruitful Cooperation ◽  
Academy Of Sciences

The report is based on the first results of the study "The History of the Evangelical Christians-Baptists in Ukraine", carried out in 1994-1996 by the joint efforts of the Department of Religious Studies at the Institute of Philosophy of the National Academy of Sciences of Ukraine and the Odessa Theological Seminary of Evangelical Christian Baptists. A large-scale description and research of archival sources on the history of evangelical movements in our country gave the first experience of fruitful cooperation between secular and church researchers.

The phenomenon of religion

1996 ◽  
pp. 45-46
Author(s):  
Borys Lobovyk
Keyword(s):  
Religious Studies ◽  
National Academy Of Sciences ◽  
Historical Phenomenon ◽  
Academy Of Sciences

"PHENOMENON OF RELIGION" - under this name on June 20-21, 1996, the All-Ukrainian Colloquium, convened by the Department of Religious Studies and the Ukrainian Association of Religious Studies took place at the Institute of Philosophy of the National Academy of Sciences of Ukraine. The purpose of the colloquium is to discuss the topical issues of Ukrainian religious studies concerning the nature, essence and functionality of religion as a social and historical phenomenon.

First Ricin Readings

1998 ◽  
pp. 39-41
Author(s):  
Oleksandr N. Sagan
Keyword(s):  
Religious Studies ◽  
National Academy Of Sciences ◽  
Medical College ◽  
Religious Consciousness ◽  
Medical Academy ◽  
65Th Anniversary ◽  
Academy Of Sciences

On April 22, 1998, on the occasion of the 65th anniversary of the publication of Arsen Rychinsky's "Problems of Ukrainian Religious Consciousness" in Kremenets (Ternopil region), the First Rychinsky reading was held. The organizers of the conference were: Ukrainian Association of Religious Studies, Ternopil Medical Academy named after them. I.Gorbachevsky, Department of Religious Studies at the Institute of Philosophy named after G.S. Skovoroda, National Academy of Sciences of Ukraine, Kremenets Medical College.

Christianity and culture: history, tradition, modernity

1997 ◽  
pp. 65-66
Author(s):  
V. Klymov
Keyword(s):  
Religious Studies ◽  
National Academy Of Sciences ◽  
Culture History ◽  
State Administration ◽  
State Pedagogical ◽  
State Pedagogical Institute ◽  
The Many ◽  
Academy Of Sciences ◽  
Cultural Experts ◽  
Practical Conference

Under this name, on November 20-21, the All-Ukrainian Scientific and Practical Conference took place in Poltava, which became one of the many events devoted to the 2000th anniversary of the Nativity of Christ. Its organizers were Poltava Regional State Administration, Department of Religious Studies at the Institute of Philosophy named after G. Skovoroda, National Academy of Sciences of Ukraine, Poltava State Pedagogical Institute. VG Korolenko. The conference was attended by scholars: religious scholars, historians, philosophers, ethnographers, cultural experts, teachers from Kyiv, and many regions of Ukraine.

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