1-20 of 50991 Search Results for

Density logging

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 5–8, 1997
Paper Number: SPE-38650-MS
... for density and PEF and show examples of logs in various logging situation. In most cases, a density log from a larger pad tool was available for comparison. P. 69^ Upstream Oil & Gas well logging slim hole log analysis Novel Array Density Tool 1997. Society of Petroleum Engineers ...
Proceedings Papers

Paper presented at the SPWLA 62nd Annual Logging Symposium, May 17–20, 2021
Paper Number: SPWLA-2021-0066
... Abstract In order to better evaluate the formation density, casing and cement ring integrity under casing well conditions, a high precision four detector density logging tool was designed and developed. Theoretical methods and experimental studies are carried out on the relationship between...
Journal Articles
Petrophysics 59 (05): 565–587.
Paper Number: SPWLA-2018-v59n5a1
Published: 01 October 2018
... to be a robust replacement for this type of source. The continued success of 137 Cs sources in density logging shows that attempts at their replacement have been unsuccessful due to the insufficient measurement quality or lack of practicality of alternative logging instruments. An X-ray density-pad sonde...
Proceedings Papers

Paper presented at the SPWLA 59th Annual Logging Symposium, June 2–6, 2018
Paper Number: SPWLA-2018-G
... ABSTRACT Formation bulk density is classically measured by irradiating the formation with gamma rays emitted by a 137 Cs source, and counting the Compton scattered photons returning to the gamma ray detectors in the well logging instrument. For at least three decades, service companies...
Journal Articles
Petrophysics 58 (05): 501–516.
Paper Number: SPWLA-2017-v58n5a4
Published: 01 October 2017
... induction, and density logging tools. The inversion is especially suited for challenging interpretation scenarios where the formation is drilled with oil-based mud and has complex mineralogy consisting of multiple minerals and pore types. The inversion accounts for the simultaneous effects on all the tool...
Proceedings Papers

Paper presented at the SPWLA 58th Annual Logging Symposium, June 17–21, 2017
Paper Number: SPWLA-2017-TT
... ABSTRACT We present an automatic inversion for petrophysical interpretation of data acquired in a vertical well by the array sonic, array induction, and density logging tools. The inversion is especially suited for challenging interpretation scenarios where the formation is drilled with oil...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5902427
... Summary A density logging instrument with three gamma detectors has been developed to improve the vertical resolution. The numerical simulation models of the instrument were built with MCNP code to further increase its performance. K.A. Eyl(1994) and C. Stoller(1997) have proposed a high...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 4–7, 2009
Paper Number: SPE-124193-MS
... Abstract A fast-forward (FF) model for density logging is an essential element for inversion techniques, which may be performed with density data alone or jointly with other measurements. Such models must be both fast and accurate to be of value in the log interpretation process...
Proceedings Papers

Paper presented at the SPWLA 48th Annual Logging Symposium, June 3–6, 2007
Paper Number: SPWLA-2007-PP
.... Figure 1: Top structure map of the Lennox Field showing the L13 and L13z well paths. The wells were drilled in the eastern LWD AZIMUTHAL DENSITY LOGGING IN LIVERPOOL BAY, UK AS AN AID TO COMPLETION PLANNING VIA FAULT AND FRACTURE DETECTION Giancarlo Rizzi and Brian Callaghan Jonathan Lean, David Lawton...
Proceedings Papers

Paper presented at the SPWLA 47th Annual Logging Symposium, June 4–7, 2006
Paper Number: SPWLA-2006-BBB
... well logging Thickness cement thickness implication standoff log analysis Samworth porosity evaluation saturation Upstream Oil & Gas variation cement density Symposium gas saturation resolution formation density open hole correction spwla 47 equation cased hole count...
Journal Articles
Petrophysics 46 (03).
Paper Number: SPWLA-2005-v46n3a1
Published: 01 May 2005
... in elliptical or rugose boreholes. This field case study focuses on the Saddle Hills area in northern Alberta, close to the Peace River Arch, where unexpected density responses were observed while logging the Wabamun carbonate formation. The responses included overcorrection of the density in bad holes...
Proceedings Papers

Paper presented at the SPE Eastern Regional Meeting, September 15–17, 2004
Paper Number: SPE-91548-MS
..., the Red Rock presents a clean, blocky gamma ray signature with an associated neutron response similar to a gas-filled sandstone reservoir. While it is quite easy to differentiate between the Red Rock and Clinton sands utilizing an openhole gamma ray/density log, the certainty of proper Red Rock versus...
Proceedings Papers

Paper presented at the SPWLA 45th Annual Logging Symposium, June 6–9, 2004
Paper Number: SPWLA-2004-G
... logging tools were developed to exploit this sensitivity; however, none of these experimental prototypes has been developed into a commercial service. This study analyzes the response of a three-detector wireline density tool to formation density in cased wells. The tool response was experimentally...
Proceedings Papers

Paper presented at the SPWLA 45th Annual Logging Symposium, June 6–9, 2004
Paper Number: SPWLA-2004-B
... area in northern Alberta, close to the Peace River Arch, where unexpected density responses were observed while logging the Wabamun carbonate formation. The responses included overcorrection of the density in bad holes and higher-than expected bulk density and photoelectric factor (PEF) measurements...
Proceedings Papers

Paper presented at the SPWLA 43rd Annual Logging Symposium, June 2–5, 2002
Paper Number: SPWLA-2002-K
... ABSTRACT The fluid-density logging tool has been developed in the part of NEDO research program "Development of Drilling and Production Technology for the Deep-seated Geothermal Resources". The tool is designed to work in the well whose temperature is up to 400°C. The principle of the fluid...
Proceedings Papers

Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, March 21–23, 2000
Paper Number: SPE-59698-MS
... a catalog of possible uses of the tool, now that these hardware limitations have been addressed. Theory and Sensor Improvements Abstract The borehole gravity logging tool, used as a deep investigation density method that can image through casing, is enjoying a renaissance. Originally designed...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 27–30, 1998
Paper Number: SPE-49226-MS
...- 137, is used to improve precision and depth of investigation. P. 565 well logging cement density block filter formation density electron density borehole sensitivity configuration four-detector tool detector spe 49226 calculation gamma ray precision count rate log analysis...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 25–28, 1994
Paper Number: SPE-28407-MS
... Abstract Significant improvements in both the resolution and the precision of formation density logging tools are possible through the integration of a new "backscatter" gamma-ray detector into the traditional dual-spacing device. The spacing and the geometry of the new measurement permit...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 25–28, 1994
Paper Number: SPE-28408-MS
... Abstract Tectonic stress in Oman causes boreholes to breakout along the direction of least horizontal stress. Logging tools which apply a spring loaded pad to the borehole wall (such as density and microresistivity logs) tend to align with the breakout axis. Unfortunately the breakout axis...
Journal Articles
SPE Form Eval 5 (04): 465–468.
Paper Number: SPE-19613-PA
Published: 01 December 1990
... ) , which is then added back to the apparent far density to obtain the corrected bulk density, (2) ρ b = ρ f + Δ ρ . 8 10 1989 6 7 1990 26 7 1990 1 12 1990 1 12 1990 Copyright 1990, Society of Petroleum Engineers well logging Simulation...

Product(s) added to cart

Close Modal