Enhancement of Leak-Off-Test Values by Mud Additives - A Case Study in Deep-Water Wells in the Krishna-Godavari Basin Offshore India

2006 ◽  
Author(s):  
Raj K. Singh ◽  
Fred R. Holasek ◽  
Vijay Ratan ◽  
S.C. Gulati ◽  
B.A. Thyagaraju
Keyword(s):  
Deep Water ◽  
Water Wells ◽  
Godavari Basin

Natural bridging as a tertiary well control method in deep-water wells: A case study from Caspian Sea

2018 ◽  
Vol 169 ◽  
pp. 725-738
Author(s):  
Mohammad Sabah ◽  
Mohammad Javad Ameri ◽  
Maryam Sedigh
Keyword(s):  
Deep Water ◽  
Caspian Sea ◽  
Control Method ◽  
Well Control ◽  
Water Wells

Real-Time Casing Design Optimization: A Case Study in Using Managed Pressure Drilling to Develop an Adaptive Well Design and Eliminate Casing Strings on a Deep Water Exploration Well

2014 ◽  
Author(s):  
Catherine Sugden ◽  
William Bacon ◽  
Oscar Gabaldon ◽  
Jose Umberto Arnaud Borges ◽  
Cristiane Maraviha Soares ◽  
...  
Keyword(s):  
Design Optimization ◽  
Real Time ◽  
Deep Water ◽  
Well Design ◽  
Managed Pressure Drilling ◽  
Exploration Well

scholarly journals Stratigraphic and tectonic control of deep-water scarp accumulation in Paleogene synorogenic basins: a case study of the Súľov Conglomerates (Middle Váh Valley, Western Carpathians)

2017 ◽  
Vol 68 (5) ◽  
pp. 403-418 ◽  
Author(s):  
Ján Soták ◽  
Zuzana Pulišová ◽  
Dušan Plašienka ◽  
Viera Šimonová
Keyword(s):  
Deep Water ◽  
Fault Scarp ◽  
Submarine Landslides ◽  
Orogenic Wedge ◽  
Calcite Veins ◽  
Tectonic Erosion ◽  
Mass Flow Deposits ◽  
Miocene Tectonics ◽  
Mass Transport Deposits

Abstract The Súľov Conglomerates represent mass-transport deposits of the Súľov-Domaniža Basin. Their lithosomes are intercalated by claystones of late Thanetian (Zones P3 - P4), early Ypresian (Zones P5 - E2) and late Ypresian to early Lutetian (Zones E5 - E9) age. Claystone interbeds contain rich planktonic and agglutinated microfauna, implying deep-water environments of gravity-flow deposition. The basin was supplied by continental margin deposystems, and filled with submarine landslides, fault-scarp breccias, base-of-slope aprons, debris-flow lobes and distal fans of debrite and turbidite deposits. Synsedimentary tectonics of the Súľov-Domaniža Basin started in the late Thanetian - early Ypresian by normal faulting and disintegration of the orogenic wedge margin. Fault-related fissures were filled by carbonate bedrock breccias and banded crystalline calcite veins (onyxites). The subsidence accelerated during the Ypresian and early Lutetian by gravitational collapse and subcrustal tectonic erosion of the CWC plate. The basin subsided to lower bathyal up to abyssal depth along with downslope accumulation of mass-flow deposits. Tectonic inversion of the basin resulted from the Oligocene - early Miocene transpression (σ1 rotated from NW-SE to NNW-SSE), which changed to a transpressional regime during the Middle Miocene (σ1 rotated from NNE-SSW to NE-SW). Late Miocene tectonics were dominated by an extensional regime with σ3 axis in NNW-SSE orientation.

scholarly journals Iron in Well Water: Case Study in Dulalowo and Heledulaa Districts

2020 ◽  
Vol 2 (2) ◽  
pp. 46-52
Author(s):  
Hendri Iyabu ◽  
Anita Muhammad ◽  
Jafar La Kilo ◽  
Akram La Kilo
Keyword(s):  
Water Samples ◽  
Iron Concentration ◽  
Well Water ◽  
Iron Level ◽  
Water Determination ◽  
Drinking Water Standard ◽  
Water Wells ◽  
Fe Content

This study aims to determine the iron content of water wells in Dulalowo and Heledulaa, Gorontalo City. Ten well water samples were taken randomly from five different wells in each district. Water samples at each well consist of top, middle, and bottom water. Determination of iron level using Atomic Absorption Spectrophotometer (AAS) at a wavelength of 248.33 nm. The results showed that the iron concentration of well water in Dulalowo was 0.030 (D1), 0.265 (D2), 0.224 (D3), 0.158 (D4), 0.149 ppm (D5). Meanwhile, iron levels in Heledulaa were 0.100 (H1), 0.039 (H2), 0.159 (H3), 0.198 (H4), and 0.235 ppm (H5). These results prove that the Fe content in the well water in the two districts is still fulfil the drinking water standard which is a maximum of 0.3 mg/L iron.

scholarly journals Zoning of Nitrite and Nitrate Concentration in Groundwater Using Geografic Information System (GIS), Case Study: Drinking Water Wells in Yazd City

2016 ◽  
Vol 04 (03) ◽  
pp. 91-96 ◽  
Author(s):  
Reza Ali Fallahzadeh ◽  
Seyed Ali Almodaresi ◽  
Mohamad Mehdi Dashti ◽  
Ahmad Fattahi ◽  
Mojtaba Sadeghnia ◽  
...  
Keyword(s):  
Information System ◽  
Drinking Water ◽  
Nitrate Concentration ◽  
Water Wells ◽  
Yazd City
Sign in / Sign up

Export Citation Format

Share Document