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Keywords: diameter
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Proceedings Papers

Publisher: Society of Petrophysicists and Well-Log Analysts
Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0089
... log analysis mudstone experiment reservoir characterization spwla-2024-0089 clastic rock well logging drilling measurement th annual logging symposium boundary characterizing thin bed response contribution tank water tank experiment scenario lwd nmr tool diameter SPWLA 65th Annual...
Proceedings Papers

Publisher: Society of Petrophysicists and Well-Log Analysts
Paper presented at the SPWLA 65th Annual Logging Symposium, May 18–22, 2024
Paper Number: SPWLA-2024-0115
... on physical models, simulating various defects in the third, fourth and fifth casings, the sensitivity of the developed tool was assessed. The possibility of radial probing and azimuthal scanning in large diameter casing (up to 24 in) has been demonstrated. To interpret measurement results in multistring...
Proceedings Papers

Paper presented at the SPWLA 64th Annual Logging Symposium, June 10–14, 2023
Paper Number: SPWLA-2023-0061
... nonlinear effects, including the extreme scenario of tubing touching the casing. This provides an estimated 5% deformation ratio accuracy for casing diameters of up to 13-3/8". This technology can be combined with other single or multi-barrier inspection logging tools such as multifinger calipers and multi...
Proceedings Papers

Paper presented at the SPWLA 60th Annual Logging Symposium, June 15–19, 2019
Paper Number: SPWLA-2019-GGGGG
... a borehole where different fluids can be pumped in. A full set of metallic standards made of aluminum alloy and aluminum composite are also proposed in six different borehole diameters that can be filled with various fluids. All standards were initially designed and modeled to calibrate logging tools...
Proceedings Papers

Paper presented at the SPWLA 59th Annual Logging Symposium, June 2–6, 2018
Paper Number: SPWLA-2018-U
... impedance borehole Schlumberger frequency ultrasonic imaging diameter physics sensor log analysis resolution information amplitude interpretation Upstream Oil & Gas fracture Formation Resistivity standoff Imaging spwla 59 Symposium resistivity Drilling SPWLA 59th Annual Logging...
Proceedings Papers

Paper presented at the SPWLA 58th Annual Logging Symposium, June 17–21, 2017
Paper Number: SPWLA-2017-FF
... borehole. With modeling, it is easy to vary the size of the borehole to match the tool size being calibrated. In the models, wireline tools are positioned against the side of an 8-in. borehole, and LWD tools are centered inside a borehole with the nominal diameter for the tool. This ensures that LWD logs...
Proceedings Papers

Paper presented at the SPWLA 57th Annual Logging Symposium, June 25–29, 2016
Paper Number: SPWLA-2016-AAA
... Abstract Microresistivity imager logs have broad application in geological, petrophysical and geomechanical studies. A new small diameter wireline-style logging tool with both real-time and memory capability has been engineered to reduce the acquisition risk and extend the application...
Proceedings Papers

Paper presented at the SPWLA 57th Annual Logging Symposium, June 25–29, 2016
Paper Number: SPWLA-2016-1537
... conditions, and especially in heavy oil-based mud where acoustic and electrical data quality is often compromised. well logging fracture detection inversion log analysis spwla 57 induction tool characterization Upstream Oil & Gas diameter interpretation Drilling triaxial tool hydraulic...
Proceedings Papers

Paper presented at the SPWLA 55th Annual Logging Symposium, May 18–22, 2014
Paper Number: SPWLA-2014-KKKK
... log analysis inter-echo time Upstream Oil & Gas spwla 55 borehole pulse sequence tool design requirement vertical resolution acquisition gradient specification porosity echoe Symposium Drilling well logging accuracy diameter sequence mr-lwd tool precision SPWLA 55th...
Proceedings Papers

Paper presented at the SPWLA 55th Annual Logging Symposium, May 18–22, 2014
Paper Number: SPWLA-2014-NN
.... The paper presents the vertical resolution, depth of investigation and electrical diameter of the imager. The current leakage from the transmitter to the formation back to the tool mandrel is a challenge of obtaining an image in a low-resistivity environment. The paper presents how the leak is reduced...
Proceedings Papers

Paper presented at the SPWLA 55th Annual Logging Symposium, May 18–22, 2014
Paper Number: SPWLA-2014-II
... factors is the diameter of the OH, which can be beyond the reach of the tractor arms or wheels, either due to large bit sizes or enlarged boreholes caused by washouts. A new generation tractor was introduced in 2010 to address this issue. With an outer diameter of 4 1/2" and an operational OH diameter...
Proceedings Papers

Paper presented at the SPWLA 55th Annual Logging Symposium, May 18–22, 2014
Paper Number: SPWLA-2014-MMM
... parameter required to compute dip (ignoring standoff effects) would be the diameter of the borehole. However, gamma rays generated inside a density tool can penetrate several centimeters into the formation. The result is that bed boundaries can be detected before or after the bounding plane intersects...
Proceedings Papers

Paper presented at the SPWLA 52nd Annual Logging Symposium, May 14–18, 2011
Paper Number: SPWLA-2011-QQQ
... of their size of one-inch diameter and length of less than two inches. Many laboratory geoscientists and engineers prefer using samples that are one and a half inches in diameter and two inches long, allowing a larger sample volume for many rock characterization. This paper discusses results from a new sidewall...
Proceedings Papers

Paper presented at the SPWLA 52nd Annual Logging Symposium, May 14–18, 2011
Paper Number: SPWLA-2011-YY
... rotation Symposium nuclear fluid density resistance capacitance array tool spinner fluid density well trajectory sensor spwla 52nd diameter data acquisition horizontal well Standard Deviation SPWLA 52nd Annual Logging Symposium, May 14-18, 2011 1 New Sensor Development Helps Optimise...
Proceedings Papers

Paper presented at the SPWLA 52nd Annual Logging Symposium, May 14–18, 2011
Paper Number: SPWLA-2011-TTT
... larger than standard laboratory core plugs, 1.5 in in diameter by 3 in in length. Every aspect of the new coring system has been engineered to enable easy and reliable wellsite operation with real-time intelligent drilling control and efficient recovery in a broad range of lithologies. An innovative...
Proceedings Papers

Paper presented at the SPWLA 52nd Annual Logging Symposium, May 14–18, 2011
Paper Number: SPWLA-2011-QQ
... on the density measurement stabilizer. Towards the end of the drilling run it was noticed that the bottom quadrant density correction (delta rho) was slowly moving from values normalized on zero to a more positive number of about 0.15 g/cm 3 . Measurements of the density stabilizer diameters performed after...
Proceedings Papers

Paper presented at the SPWLA 52nd Annual Logging Symposium, May 14–18, 2011
Paper Number: SPWLA-2011-V
... wellbore stability model diameter Engineer caliper measurement Reservoir Characterization detector mud weight Norway Drilling operation breakout Symposium case study density image wellbore pressure SPWLA 52nd Annual Logging Symposium, May 14-18, 2011 1 Real-Time and Time-Lapsed LWD Density...
Proceedings Papers

Paper presented at the SPWLA 51st Annual Logging Symposium, June 19–23, 2010
Paper Number: SPWLA-2010-23310
... and, by inference, formation permeability can be derived from these time based measurements (i.e., effectively injection logs while drilling). well logging formation property borehole sensor Upstream Oil & Gas flow rate diameter resistivity seawater Drilling modeling spwla 51 BHA...
Proceedings Papers

Paper presented at the SPWLA 50th Annual Logging Symposium, June 21–24, 2009
Paper Number: SPWLA-2009-21847
... as a sinusoid when the image is unwrapped. More specifically, a plane intersecting a borehole, projected onto a plane with azimuth and depth as coordinates, becomes a sinusoid on the projection. The dip can be calculated from the amplitude and the borehole diameter, while the azimuth is read off directly...
Proceedings Papers

Paper presented at the SPWLA 50th Annual Logging Symposium, June 21–24, 2009
Paper Number: SPWLA-2009-49451
.... This oscillation mode can be typically observed in slide mode with a steerable PDM. Because the hole diameter is constant along z-axis, rippling cannot be observed in traditional 1-D caliper plots. The geometry of a rippling borehole can be expressed in a Cartesian coordinate as follows: External Internal Drill...

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