Features of ground inflow testing in the areas of double porosity aquifer development

The purpose of the study is optimization of geological exploration at the groundwater deposits of the upper hydrodynamic zone formed in the fault-block structure conditions in Eastern Siberia. The authors analyze the structural and tectonic features of the areas under investigation, the results of areal geophysics studies, exploration drilling and the use of the author's methodology in carrying out of the ground inflow testing. The objects of research are groundwater deposits located in various tectonic structures of Eastern Siberia. The analysis of field study results involving researches of groundwater deposits located in various tectonic structures of Eastern Siberia made it possible to identify the double porosity in the aquifers of free water exchange in the region, which is due to the stresses arising during the inland Baikal rift system formation. As a result, the optimization of geological exploration work, methodology and processing methods of ground inflow testing in the areas of fault-block structures development were introduced on the basis of the features of structural-tectonic and hydrogeological conditions.

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Three‐dimensional structural‐material models of the formation of the Nyurbinskaya and Botuobinskaya kimberlite pipes (Yakutian Diamondiferous Province, Russia)

Geodynamics & Tectonophysics ◽

10.5800/gt-2019-10-4-0448 ◽

2019 ◽

Vol 10 (4) ◽

pp. 899-920

Author(s):

E. V. Serebryakov ◽

A. S. Gladkov ◽

D. A. Koshkarev

Keyword(s):

Structural Material ◽

Three Dimensional ◽

Integrated Approach ◽

3D Models ◽

Structural Features ◽

Material Models ◽

Near Surface ◽

Fault Block ◽

Study Results ◽

Block Structures

The Nyurbinskaya and Botuobinskaya kimberlitic pipes were in the focus of a comprehensive study aimed to investigate their structural and material positions as the main deposits in the Nakyn field (Yakutian Diamondife‐ rous Province, Russia). This paper present the study results and 3D structural‐material models showing the formation of these deposits. In application to geological studies, the 3D modeling technologies allow taking into account the ani‐ sotropy of material complexes comprising kimberlite pipes, as well as inconsistencies in the structural and morpho‐ logical properties of ore‐bearing structures. In order to discover the structural positions and features of the fault‐ block structures of the deposits, tectonophysical methods were used in combination with tacheometric surveys. Based on this more comprehensive and integrated approach, the existing fault patterns were clarified in detail; elements of the internal fault structure were mapped; fault azimuths and dip angles were estimated; and thickness values were obtained. Computer processed data were used to construct 3D models showing the fault‐block structures of the Nyurbinskaya and Botuobinskaya pipes. The mineralogical, petrographic and diamond‐bearing features of various kimberlite generations comprising these pipes were investigated in order to reconstruct the morphology and spatial positions of each of the selected complexes in the current cross‐section and in accordance with intrusion phases. The 3D frame models of geological bodies were constructed for all the magmatic phases, including porphyry kimberlite and eruptive and autolithic kimberlite breccia. The structural‐material models for the Nyurbinskaya and Botuobin‐ skaya pipes were based on a synthesis of their material and structural features discovered in the previous stages of the study. The models presented in this paper are used to discuss temporal relationships between faults in the kim‐ berlitic structure and material complexes comprising the pipes. The models show that the pipes occurred in the near‐ surface structures of shear tension, which developed in the areas where the NNE‐striking fault was conjugated with the ENE‐ and NE‐striking faults in the fault zone resulting from several stage of the tectono‐magmatic activity. In this case, the kimberlite melt material was transported in discrete portions from the source through deep‐seated faults, and the faults acted as channels characterized by an increased permeability. Disjunctive elements identified in this study facilitated magma movements and localization of kimberlite bodies.

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Stratigraphy of amethyst geode-bearing lavas and fault-block structures of the Entre Rios mining district, Paraná volcanic province, southern Brazil

Anais da Academia Brasileira de Ciências ◽

10.1590/0001-37652014201120004 ◽

2013 ◽

Vol 86 (1) ◽

pp. 187-198 ◽

Cited By ~ 6

Author(s):

LÉO A. HARTMANN ◽

LUCAS M. ANTUNES ◽

LEONARDO M. ROSENSTENGEL

Keyword(s):

Block Structure ◽

Underground Mines ◽

Mining District ◽

Volcanic Province ◽

Fault Block ◽

River Bed ◽

World Class ◽

Entre Rios ◽

Block Structures

The Entre Rios mining district produces a large volume of amethyst geodes in underground mines and is part of the world class deposits in the Paraná volcanic province of South America. Two producing basalt flows are numbered 4 and 5 in the lava stratigraphy. A total of seven basalt flows and one rhyodacite flow are present in the district. At the base of the stratigraphy, beginning at the Chapecó river bed, two basalt flows are Esmeralda, low-Ti type. The third flow in the sequence is a rhyodacite, Chapecó type, Guarapuava subtype. Above the rhyodacite flow, four basalt flows are Pitanga, high-Ti type including the two mineralized flows; only the topmost basalt in the stratigraphy is a Paranapanema, intermediate-Ti type. Each individual flow is uniquely identified from its geochemical and gamma-spectrometric properties. The study of several sections in the district allowed for the identification of a fault-block structure. Blocks are elongated NW and the block on the west side of the fault was downthrown. This important structural characterization of the mining district will have significant consequences in the search for new amethyst geode deposits and in the understanding of the evolution of the Paraná volcanic province.

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METHODOLOGICAL APPROACH TO ASSESSING THE EFFECTIVENESS OF THE USE OF A SEPARATE SERVICE WHEN ORGANIZING GEOLOGICAL EXPLORATION

EKONOMIKA I UPRAVLENIE: PROBLEMY, RESHENIYA ◽

10.36871/ek.up.p.r.2020.12.04.005 ◽

2020 ◽

Vol 4 (12) ◽

pp. 29-37

Author(s):

O. V. RUDENOK ◽

◽

N. V. ZONOVA ◽

Keyword(s):

Oil And Gas ◽

Methodological Approach ◽

Service Organizations ◽

Geological Exploration ◽

Exploration Drilling ◽

Oil And Gas Enterprises

The article discusses the issues of evaluating the effectiveness of organizing exploration drilling based on a separate service. A methodological approach is presented and an assessment of the efficiency of using a separate service is given in comparison with various methods of organizing exploration drilling, including those based on the principles of outsourcing. The results obtained can be applied in the development of organizational and management solutions to optimize the system for attracting service organizations at oil and gas enterprises.

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Effect of Fault-block Structures on Sedimentary History of Coastal Plain in North Carolina: ABSTRACT

AAPG Bulletin ◽

10.1306/0bda6179-16bd-11d7-8645000102c1865d ◽

1960 ◽

Vol 44 ◽

Author(s):

Richard D. Pusey

Keyword(s):

North Carolina ◽

Coastal Plain ◽

Fault Block ◽

History Of ◽

Block Structures

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The Elgin, Franklin, Glenelg and West Franklin fields, Blocks 22/30b, 22/30c, 29/4d, 29/5b and 29/5c, UK North Sea

Geological Society London Memoirs ◽

10.1144/m52-2018-47 ◽

2020 ◽

Vol 52 (1) ◽

pp. 436-446 ◽

Cited By ~ 2

Author(s):

A. D. Irving ◽

K. F. Raphael ◽

P. M. Rennison ◽

R. Lewis ◽

C. D. Cruickshank ◽

...

Keyword(s):

Initial Pressure ◽

Upper Jurassic ◽

Central Process ◽

Fault Block ◽

High Pressure High Temperature ◽

Temperature Development ◽

Production Wells ◽

Cumulative Production ◽

The Uk ◽

Block Structures

AbstractThe Elgin, Franklin, Glenelg and West Franklin fields lie approximately 240 km (150 miles) east of Aberdeen in Blocks 22/30b, 22/30c, 29/4d, 29/5b and 29/5c of the UK Central Graben. Franklin was discovered in 1985, Elgin in 1991, Glenelg in 1999 and West Franklin in 2003. Elgin is a complex faulted anticline comprising four panels, while the others are simpler, tilted fault block structures. The main reservoir is the Upper Jurassic Fulmar Formation shoreface sandstone, although the Middle Jurassic Pentland and Triassic Skagerrak formations have also been produced on Franklin. Initial pressure was c. 1100 bar (16 000 psi), with a reservoir temperature of around 190°C (375°F). Production wells are drilled from four wellhead platforms; all connected to a central process, utilities and quarters facility above Elgin. Gas and condensate production started in 2001 from six wells on each of Elgin and Franklin, with the plateau being extended by satellite and infill wells. The project remains the world's largest high-pressure–high-temperature development, requiring continued innovations in geoscience, drilling, completion and operations. Cumulative production at end 2017 is 886 Mboe, with estimated ultimate recovery around 1300 Mboe.

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Experimental Study of High-Temperature Resistant Cementing Materials in Geological Exploration Drilling Tools

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.774-776.564 ◽

2013 ◽

Vol 774-776 ◽

pp. 564-568

Author(s):

Zuo Guo Qin ◽

Yong Jun Shao

Keyword(s):

Experimental Study ◽

High Temperature ◽

Orthogonal Test ◽

Geological Exploration ◽

Time Loss ◽

Technology Program ◽

Drilling Tools ◽

Exploration Drilling ◽

Cementing Material ◽

Experimental Technology

As the main carrier for the protective casing purposes, cementing material is an important part in cementing design. In order to obtain a high temperature and high pressure resistant cementing material with low elasticity, we investigated on the high-temperature resistant cementing material used in geological exploration drilling materials to seek better cementing material for fulfilling requirements of high-temperature, and to find the best formula using orthogonal test. With compositions of the material in different proportions, this article investigated performances of the cementing material, as thickening time, loss of water, and compressive strength. By comparison, high-temperature resistant cementing materials experimental technology program has been finally estimated, and the composition ratio of the components are determined.

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ANALYSIS OF LICENSING THE BOWELS FOR 2000-2018 IN THE TERRITORY OF EASTERN SIBERIA AND THE SAKH REPUBLIC (YAKUTIA)

Interexpo GEO-Siberia ◽

10.33764/2618-981x-2019-2-5-154-161 ◽

2019 ◽

Vol 2 (5) ◽

pp. 154-161

Author(s):

Elena Kuznetsova ◽

Alevtina Gordeeva ◽

Elena Belova ◽

Elizaveta Bobkova ◽

Natalya Edinarhova ◽

...

Keyword(s):

Expert Assessment ◽

Eastern Siberia ◽

Geological Exploration ◽

Irkutsk Region

The article discusses the statistics on the fulfillment of license obligations by subsoil users regarding the terms and volumes of geological exploration. An expert assessment of the fulfillment by the subsoil users of the declared obligations on the territory of the Krasnoyarsk Territory, the Irkutsk Region and the SAHA Republic (Yakutia) is given.

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