Disposal of Oil-Field Brines in the Central Valley of California

2009 ◽  
pp. 48-48-10
Author(s):  
James M. Morris
Keyword(s):  
Central Valley ◽  
Oil Field

scholarly journals Potential for Biomass Production and Remediation by Cultivation of the Marine Model Diatom Phaeodactylum tricornutum in Oil Field Produced Wastewater Media

Water ◽  
2021 ◽  
Vol 13 (19) ◽  
pp. 2700
Author(s):  
Jeroen T. F. Gillard ◽  
Alexander L. Hernandez ◽  
Javier A. Contreras ◽  
Isolde M. Francis ◽  
Luis Cabrales
Keyword(s):  
Phaeodactylum Tricornutum ◽  
Produced Water ◽  
Genetic Regulation ◽  
Central Valley ◽  
Nutrient Content ◽  
Maximum Growth ◽  
Oil Field ◽  
Production Costs ◽  
Potentially Harmful Elements ◽  
Cellular Lipid Accumulation

While oilfield produced water (PW) is one of the largest, unclaimed wastewater streams of the oil industry, it could potentially be used as a cultivation medium for microalgae. Microalgae could help with the remediation of this water while also delivering biomass that can be transformed into valuable byproducts such as biofuels. The coupling of these two purposes is expected to cut production costs of biofuels while aiding environmental protection. In this study, we compared the cultivation capacity of the marine model diatom Phaeodactylum tricornutum in media at varying salinities and in media composed of PW from two oilfields in the Central Valley of California that differed drastically in the concentration of inorganic and organic constituents. Specifically, we measured the carrying capacity of these media, the maximum growth rates of P. tricornutum, its cellular lipid accumulation capacity, and its capacity to remediate the most polluted PW source. Our study shows that P. tricornutum can successfully adjust to the tested cultivation media through processes of short-term acclimation and long-term adaptation. Furthermore, the cultivation of P. tricornutum in the most heavily polluted PW source led to significant increases in cell yield and improved photosynthetic capacity during the stationary phase, which could be attributed chiefly to the higher levels of nitrate present in this PW source. Chemical water analyses also demonstrated the capability of P. tricornutum to remediate major nutrient content and potentially harmful elements like fluorine and copper. Because P. tricornutum is amenable to advanced genetic engineering, which could be taken advantage of to improve its cultivation resilience and productivity in an economic setting, we propose this study as a step towards essential follow-up studies that will identify the genetic regulation behind its growth in oilfield PW media and its remediation of the PW constituents.

Hydrogeological responses in tropical mountainous springs

2019 ◽  
Author(s):  
Ricardo Sánchez-Murillo
Keyword(s):  
Costa Rica ◽  
Isotope Composition ◽  
Central Valley ◽  
Distribution Functions ◽  
Geochemical Composition ◽  
Transit Times ◽  
Management Plans ◽  
Best Fit ◽  
Term Data

This study presents a hydrogeochemical analysis of spring responses (2013-2017) in the tropical mountainous region of the Central Valley of Costa Rica. The isotopic distribution of δ18O and δ2H in rainfall resulted in a highly significant meteoric water line: δ2H = 7.93×δ18O + 10.37 (r2=0.97). Rainfall isotope composition exhibited a strong dependent seasonality. The isotopic variation (δ18O) of two springs within the Barva aquifer was simulated using the FlowPC program to determine mean transit times (MTTs). Exponential-piston and dispersion distribution functions provided the best-fit to the observed isotopic composition at Flores and Sacramento springs, respectively. MTTs corresponded to 1.23±0.03 (Sacramento) and 1.42±0.04 (Flores) years. The greater MTT was represented by a homogeneous geochemical composition at Flores, whereas the smaller MTT at Sacramento is reflected in a more variable geochemical response. The results may be used to enhance modelling efforts in central Costa Rica, whereby scarcity of long-term data limits water resources management plans.

Carbonate Tight Zones Detection and Their Impacts on Bangestan Reservoir Quality, Ahvaz Oil Field, SW Iran

2017 ◽  
Vol 6 (3) ◽  
pp. 21-30
Author(s):  
Masoud Soleimani ◽  
◽  
Bahman Soleimani ◽  
Bahram Alizadeh ◽  
Iman Veisy ◽  
...  
Keyword(s):  
Oil Field ◽  
Reservoir Quality ◽  
Sw Iran
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