EP 3 035 048 A1

Systems and methods for evaluating gas-contaminated cement

(22) 17.12.2014

(43) 22.06.2016

(57) Embodiments of the disclosure may include systems and methods for evaluating gas-contaminated cement. In one embodiment, a vector-valued image of cement state probability may be obtained from an acoustic logging tool, and a maximum a posterior classification of cement state of the vector-valued image may be deter­mined. A vector probability diffusion equation may be used to minimize the total variation of the vector-valued image over a number of interactions to produce a second image. The maxim urn a posterior classification of cement state the second image may be determined and compared to the maximum a posterior classification of cement state of the vector-valued image. Depending on the comparison, the original image and cement state may be used or a new gas-contaminated image with a different cement state may be generated.

(71)

Services Pétroliers Schlumberger, 75007 Paris (FR); Designated Contracting States: FR

Schlumberger Holdings Limited, Road Town, Tortola 1110 (VG); Designated Contracting States: GB NL

Schlumberger Technology B.V., 2514 JG The Hague (NL); Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES Fl GR HR HU IE IS IT LI LT LU LV MC MK MT NO PL PT RO RS SE SI SK SM TR

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES Fl FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME

x

Related articles:

Issue 2021-1 EP 3 733 628 A1

Autoclaved cement compositions

(22) 29.04.2019 (43) 04.11.2020 (57) The use of calcium aluminate cement in autoclaved cement products, cementitious compositions suitable for forming the autoclaved cement products, and methods for...

more
Issue 2019-7-8 US 2019/0135699 A1

Compositions and methods for controlling setting of carbonatable calcium silicate cements containing hydrating materials

(22) 21.12.2018 (43) 09.05.2019 (57) The invention provides compositions and methods for controlling setting of carbonatable calcium silicate compositions that are contaminated with hydrating...

more
Issue 2021-5 EP 3 812 763 A1

Method of determining the content of polymer microfibres in cement composites based on utilisation of the buoyancy phenomenon

(22) 17.03.2020 (43) 28.04.2021 (57) The present application relates to a method of determining the content of polymer microfibres in cement composites based on the utilisation of the buoyancy...

more
Issue 2020-10 EP 3 653 280 (A1)

Capture and utilisation of CO2 from cement production

(22) 02.08.2019 (43) 20.05.2020 (57) The present invention is directed to a method and a pathway to capture and use carbon dioxide, which is produced by cement plants. (71) Linde Aktiengesellschaft,...

more
Issue 2015-6 EP 2 860 224 A1

Pelleting lime fines with asphalt enhancing binders and methods of use in asphalt manufacture

(22) 19.05.2006 (43) 15.04.2015 (71) Bailey, William R., Las Vegas, NV 89130 (US) (84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO...

more