... if the measurements can be made at the high pressure standpipe, as some rigs have multiple mud pumps whose flow is routed through the common rig standpipe. Furthermore, density measurements are generally preferred on the high pressure side, since the density of the mud under pressure is more representative...

... Abstract Density measurements are widely used for the in-situ assessment of formation porosity. Traditionally, bulk density is measured with a Gamma-Gamma density tool using a radioactive chemical source. Neutron-Gamma density was recently developed to infer porosity with non-chemical sources...

... traditional gamma-gamma density (GGD). Consequently, comparing results from both density measurements will allow us to assess the quality of NGD measurement and its limitations; and ultimately qualifying it. Factors such as the invasion and presence of gas or light hydrocarbons may influence the GGD-NGD...

... azimuthal data is not acquired, one limitation of the technique is that the azimuth of the formation boundary cannot be computed. well logging trajectory design Stockhausen track 6 inclination incident angle investigation log analysis Upstream Oil & Gas depth shift density measurement...

... viscosity drilling fluid chemistry drilling fluid formulation concentration wall shear stress drilling fluid selection and formulation upstream oil & gas rheological property density measurement drilling fluids and materials hollow microsphere shear rate experiment volumetric concentration...

... have taken lab measurements to attempt to quantify the effect of this invasion on LWD tool responses. detector mud weight diameter log analysis concentration borehole hydrogen index tool diameter upstream oil & gas drill collar porosity density measurement well logging correction...

... metering production monitoring production control Reservoir Surveillance Upstream Oil & Gas flow rate spe 124875 gauge Agbami Field resolution completion flow rate measurement production optimization injector information allocation density measurement Qualification Testing accuracy...

... using a wireline pumpout formation tester. Typically, a fluid-conveying tube is driven to its natural frequency and the frequency changes with fluid density. This design has the potential to greatly enhance the downhole fluid density measurement capability. However, the physical characterization...

... This aspect is especially important for thin beds when the depth variation is insufficient to establish a gradient, and alternative measures of density are required. Precise formation fluid density measurements also allow an accurate conversion of volume to mass for fluids-in-place...

... Abstract Density measurements are intrinsically sensitive to standoff. In wireline logging, it is possible to have the detectors on a pad, reduce the standoff to a minimum, and correct for other effects with a high-level of accuracy. Logging while drilling (LWD) is more challenging because...

... frequency flow rate application production control flow metering separator turbine density measurement correction gvf measurement liquid density GVF separation volumetric flow rate Introduction The vast majority of the world's oil production is allocated using separator-based...

... alaska inc detector upstream oil & gas interpretation resistivity cased-hole density application schlumberger log analysis reservoir density measurement density data society of petroleum engineers formation density data operator water breakthrough north slope spe 95406 Introduction...

... deviated, recirculating flow. The physics basis and flow loop tests are discussed. downhole multiphase flowmeter information drillstem testing multiphase well surveillance flowmeter mixture density reservoir surveillance multiphase flowmeter upstream oil & gas density measurement holdup...

... borehole size ch density index rinc porosity dependency detector borehole configuration density measurement capture count rate inelastic count rate log analysis density effect upstream oil & gas modeling count rate density index pnc tool society of petroleum engineers well...

... data according to standoff. Sample the data at a much faster rate than the rotational speed and correct individual samples for standoff. Use only the portion of the data that has the highest density measurement. Proper calibration of density tools is a key factor in achieving the high...

... and Galiana (1991) have conducted a survey of various non-R/A density measurement technologies including: X ray attenuation, ultrasonic attenuation, weighing systems, and centrifugal pumps and differential pressure. 13 An empirical algorithm was used for stimulation fluids containing sands. For sand...

... Oil Corporation and Schlumberger. The primary goal of the tool is to demonstrate feasibility of pulsed-neutron measurements in the hostile LWD environment. borehole neutron porosity density measurement neutron neutron detector hydrogen index log analysis conventional lwd nuclear gamma...

...- and cased-hole logs, and these afford a chance to compare changes indensity with changes in neutron porosities. Examplecomparison are presented and limitations discussed. spe 56647 upstream oil & gas neutron log analysis crin trace density measurement count rate thermal neutron neutron log...

... borehole density measurement standoff well logging detector spe 30546 upstream oil & gas information n SPE 30546 Society of Petroleum Engineers Improved Formation Evaluaton Using Azimuthal Porosity Data While Drilling M. Evans, D. Best, SPE, J. Holenka, SPE, P. Kurkoski and W. Sloan...

... formation density measurement. The tool has been run in over 15 wells, and comparisons with MWD and open hole wireline density data demonstrate the measurement is accurate and reliable. The availability of a cased hole density tool has allowed greater flexibility in the design of logging programs...