...). methodology was chosen for several factors including efficiency, reliability, and the configuration of the wellbore which allowed for injection of fluid into the toe of the wellbore. The second consideration regarded centralization of the tool string. In order to collect usable data with a circumferential...

... that salinities in situ maybe considerably different than those in recovered core. Fracture influence and maturity in shale plays are quite variable. Fracture detectability can be strongly compromised by tool geometry and operational parameters. well logging dodecane Brine Upstream Oil & Gas non...

..., an alternative approach to visual inspection is proposed and applied to field examples. Upstream Oil & Gas variation consideration well logging elementary measurement measurement duration log analysis specification repeatability application Artificial Intelligence information porosity...

.... well logging calibration consideration detector neutron spwla 32nd log analysis Neutron Porosity Sensor porosity spectral processing Upstream Oil & Gas borehole mwd neutron porosity sensor annulus effect Symposium correction investigation sensor glass scintillator neutron peak...

... and geometrical parameters. Sometimes, and by making use of empirical considerations, it is possible to generalize the results, so that they can be applied to complex systems, such as natural rocks saturated with conducting fluids. Maxwe116 was the first to analize this type of problems. He conside- red a system...

..., type of the pore system, permeability, etc. A great variability of "a" and "m" values has been observed, and therefore, this is a considerable source of error in assuming values for these parameters for the computation of water saturations from logs. At the same time, it is usually difficult...

..., then allow the computer to classify into groups the data presented to it. In this paper we will describe the general procedure used to train a computer to make decisions. We feel it will be of some value to go into some of the theoretical considerations since they often define the feasibility of a pattern...

... Upstream Oil & Gas customer Engineer requirement well logging specification communication system distortion attenuation receiver noise impulse noise Serial Symposium transmission information consideration signal level SPWLA TENTH ANNUAL LOGGING SYMPOSIUM, MAY 25-28, 1969...

... ABSTRACT In one of the largest oil and gas bearing structures of Hungary grain size distribution of sandstones shows a great variety; besides sand fractions, both silt and shale fractions occur in considerable quantities. We have found that the dominant grain size affects to a great extent...

... voltage areasurements is well within the current capabilities of instrument manufacturers. The cost may be high, but the data could be provided. Actually, a program whioh is based on only the future wells is sot worthy of consideration. The problem to be solved is the production of more oil with fewer...