... filtered brine with low nephelometric turbidity unit (NTU) measurements and breaker components did not get contaminated. Sand retention and screen plugging tests were carried out utilizing core material to ensure a good well cleanup. Tracers run in the screens showed the wells had fully unloaded to TD...

... circulating temperature and tolerates up to 50% contamination with water or drilling fluids. This paper describes attributes of RAS-Co along with successful field applications that illustrate it is an effective solution for controlling reservoir damage by helping to stop severe lost circulation events...

... the screen was in place and expanded, a delayed breaker was spotted in the screen to eventually dissolve the carbonate filtercake left behind by the drill-in fluid. The well was then displaced to completion brine. Reducing cross contamination during these displacements was important to avoid costly disposal...

... strength and less downhole contamination. The drillout interval depths and location of the RSF was slightly deeper on the second treatment, indicating a new fracture interval that was not covered with the first treatment. The final analysis of the complete RSF operation was considered successful...

... Abstract A novel concept for cleanup prediction during sampling is proposed. This concept shifts focus to the early phase of cleanup, allowing for early predictions of pumpout time or produced volume using optical fluid analysis logs versus given contamination targets. The early phase...

... hydraulic fracturing fracturing fluid Corrosion Management proppant Upstream Oil & Gas corrosion inhibitor experiment iron contamination drilling fluids and materials drilling fluid formulation polymer residue viscosity in-situ gelled acid acid nasr-el-din acidizing H2S management...

... of suspended particulate matter, crystallization point, pH, and iron contamination. It also contains a discussion of gas hydrate formation and mitigation, brine viscosity,brine crystallization at high pressures,corrosion testing, buffering capacity,and a standardized reporting form. paraffin remediation...

... and characterization, and post job evaluation led to improved displacement practices for the deepwater wells evaluated for this paper. drilling fluid management & disposal displacement spacer train contact time transition spacer deepwater sbm displacement seawater contamination concentration...

... formulation fluid loss drilling fluid selection and formulation drilling fluid property concentration contamination control agent biopolymer-free reservoir drilling filter cake brine excess ph control agent application foxenberg reservoir drilling fluid dbrdf base brine reservoir drilling...

... instrumentation and through it, a correlation between TCT and PCT at 10,000 psi of deepwater bromide brines. contamination test fluid society of petroleum engineers bromide brine crystallization temperature upstream oil & gas crystallization event deep-water completion brine concentration high...

... well performance months after treatments. precipitation oilfield chemistry production chemistry ppm spe 31 124 iron contamination deposition sludge paraffin remediation hydrate remediation concentration scale inhibition asphaltene inhibition inhibitor hostile environment spe 31 124...

... fluid and the core, and also upon the stability conditions of the used drilling fluids. core sample contact time pore content formation damage contamination em core length spe 35151 permeability drilling fluids and materials initial permeablllty upstream oil & gas filter cake...

... ABSTRACT The increased use of sidewall core samples for gravel pack design can lead to the improper selection of gravel pack sand size if analyzed by standard sieve analysis techniques. Sidewall cores, which are obtained from the near wellbore region after drilling, are usually contaminated...

... ABSTRACT This study introduces a method that makes possible the direct monitoring of stimulation fluids for microbial contamination. The procedure is based on the assay of adenosine triphosphate (ATP) with luciferin-luciferase. The accuracy of this method is compared to conventional plate...

... term of removal efficiency, which is defined by multivariable correlations through time, should be utilized. And rather than a maximum particle size standard, the Industry standards for brine cleanliness should be field-oriented and can be based on a concept of clarity and degree of contamination...

... and well bore preparation of the casing and well bore surfaces by the spacer, prior to cementing. Lab and field results clearly show that cement bonds best to a waterwet surface created by the water external spacer. The effect of contamination on fluid loss control of well fluids is presented. Other tests...

... be a necessary part of cheap drilling costs but is it economical? Upstream Oil & Gas stimulation treatment consolidation treatment Drilling New Orleans clean fluid lead perforation cleanliness Completion Installation and Operations formation damage Fall Meeting spe 4778 tank contamination...