Reservoir Operations
Mostrando 13-19 de 19 artigos, teses e dissertações.
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13. Comportamento da temperatura do fluido infetado no reservatorio em operações de aciclificação de matriz
Matrix Acidization is frequently used to remove formation damage from pore plugging caused by deposition of small mineral particles. The kinetics of the chemical reactions between acid and minerais is very sensitive to fluid temperature. The temperature of the acid at the injection zone depth depends on the heat transfer that occurs as the acid travels throu
Publicado em: 1996
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14. Dialysis Fermentor Systems for Concentrated Culture of Microorganisms
Cell-mass production of Serratia marcescens was studied in dialysis systems in which growth was managed in a fermentor remote from, but connected by conduits and pumps with, a nutrient reservoir. Dialysis was accomplished with membrane tubing in either the fermentor or the reservoir, or best with membrane sheet in a plate-and-frame dialyzer that was remote f
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15. Unaccounted blood loss in operations using cardiopulmonary bypass.
Typically, blood loss after operations requiring cardiopulmonary bypass is estimated from the sum of blood on sponges and drapes, in the suction system reservoir, and in chest drainage bottles. Prime of the extracorporeal circuit is usually returned to the patient, but no accounting is made of blood remaining in the circuit. In 50 patients, we examined 25 bu
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16. Lactose Variability of Escherichia coli in Thermally Stressed Reactor Effluent Waters
Lactose-utilizing and nalidixic acid-resistant populations of Escherichia coli, having an optimum growth temperature of 37°C, were placed in modified diffusion chambers. The chambers were submerged in the epilimnion and hypolimnion of a 1,100-hectare lake (Par Pond) which receives cooling water from a nuclear production reactor. Control chambers were placed
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17. Bacterial Fouling in a Model Core System
We have used a sintered glass bead core to simulate the spaces and surfaces of reservoir rock in studies of the bacterial plugging phenomenon that affects waterflood oil recovery operations. The passage of pure or mixed natural populations of bacteria through this solid matrix was initially seen to promote the formation of adherent bacterial microcolonies on
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18. Gastrogastric fistulas. A complication of divided gastric bypass surgery.
OBJECTIVE: This report warns that gastrogastric fistulas may follow the division of the stomach in bariatric surgery. SUMMARY BACKGROUND DATA: Although surgery is the most effective therapy for morbid obesity, the procedures are still undergoing evolution. One of the key elements in bariatric surgery is the partition of the stomach to develop a much smaller
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19. Microbial Biomass, Activity, and Community Structure of Water and Particulates Retrieved by Backflow from a Waterflood Injection Well
Oil field injection water was allowed to back flow from two wells at the Packard drill site in Los Angeles, Calif., and was sampled at various times to obtain information about the biomass, potential activity, and community structure of the microbiota in the reservoir formation and in the injection water. Biomass was greatest in water samples that came from