-
公开(公告)号：US10802099B2
公开(公告)日：2020-10-13
申请号：US15943787
申请日：2018-04-03
Applicant: Schlumberger Technology Corporation
Inventor： Lalitha Venkataramanan , Fred K. Gruber , Tarek M. Habashy , Ridvan Akkurt , Badarinadh Vissapragada , Richard E. Lewis , Erik Rylander
Abstract: A methods are provided for investigating a sample containing hydrocarbons by subjecting the sample to a nuclear magnetic resonance (NMR) sequence using NMR equipment, using the NMR equipment to detect signals from the sample in response to the NMR sequence, analyzing the signals to extract a distribution of relaxation times (or diffusions), and computing a value for a parameter of the sample as a function of at least one of the relaxation times (or diffusions), wherein the computing utilizes a correction factor that modifies the value for the parameter as a function of relaxation time for at least short relaxation times (or as a function of diffusion for at least large diffusion coefficients).
-
Patent Agency Ranking
公开(公告)号：US10466186B2
公开(公告)日：2019-11-05
申请号：US15113950
申请日：2015-01-21
Applicant: Schlumberger Technology Corporation
Inventor： Ravinath Kausik Kadayam Viswanathan , Kamilla Fellah , Erik Rylander , Philip M. Singer , Richard E. Lewis
Abstract: A method for testing an unconventional core sample is provided. The method involves loading the unconventional core sample into a sample holder and introducing fluid into the sample holder at an elevated pressure such that fluid is injected into the internal pore space of the unconventional core sample in order to resaturate the unconventional core sample with the fluid, wherein the fluid is selected from the group including a hydrocarbon fluid and a water-based formation fluid. An apparatus and a system used in combination with the method are also provided.
-
13.发明申请公开(公告)号：US20190331813A1
公开(公告)日：2019-10-31
申请号：US15966607
申请日：2018-04-30
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Tuanfeng Zhang , Richard E. Lewis , Helena Gamero Diaz
Abstract: Methods may include normalizing two or more wellbore logs obtained from the output of two or more wellbore tool surveys of a wellbore in a formation of interest; inputting two or more wellbore logs into a correlation matrix; assigning each of the two or more wellbore logs a positive or negative value based on the impact on a selected wellbore quality; performing a principal component analysis of the two or more wellbore logs to obtain one or more loading vectors; computing weighting factors for each of the two or more wellbore logs from the one or more loading vectors; and generating a quality index by linearly combining the two or more wellbore logs using the computed weighting factors.
-
14.发明授权公开(公告)号：US10401313B2
公开(公告)日：2019-09-03
申请号：US15604029
申请日：2017-05-24
Applicant: Schlumberger Technology Corporation
Inventor： Vivek Anand , Ravinath Kausik Kadayam Viswanathan , Tianmin Jiang , Erik Rylander , Mansoor Ali , Richard E. Lewis
Abstract: Downhole fluid volumes of a geological formation may be estimated using nuclear magnetic resonance (NMR) measurements, even in organic shale reservoirs. Multi-dimensional NMR measurements, such as two-dimensional NMR measurements and/or, in some cases, one or more well-logging measurements relating to total organic carbon may be used to estimate downhole fluid volumes of hydrocarbons such as bitumen, light hydrocarbon, kerogen, and/or water. Having identified the fluid volumes in this manner or any other suitable manner from the NMR measurements, a reservoir producibility index (RPI) may be generated. The downhole fluid volumes and/or the RPI may be output on a well log to enable an operator to make operational and strategic decisions for well production.
-
公开(公告)号：US10360282B2
公开(公告)日：2019-07-23
申请号：US14975710
申请日：2015-12-18
Applicant: Schlumberger Technology Corporation
Inventor： John Rasmus , Richard E. Lewis , David Handwerger , Jack LaVigne
Abstract: A method and system for evaluation of a hydrocarbon-bearing shale formation employs a data processing system that defines a response model that relates first data representing measured petrophysical properties of the shale formation at a given location to second data representing volume fractions for a particular set of formation components at the given location. The first data includes hydrogen index at the given location, and the particular set of formation components of the second data include a number of mineral components and a number of hydrocarbon-bearing components. The hydrocarbon-bearing components include at least one kerogen component. A computation solver processes the response model along with the first data to solve for the second data. The solved second data representing the volume fraction of the at least one kerogen component is processed to derive at least one ratio that is indicative of kerogen maturity at the given location.
-
16.发明申请公开(公告)号：US20170343497A1
公开(公告)日：2017-11-30
申请号：US15604029
申请日：2017-05-24
Applicant: Schlumberger Technology Corporation
Inventor： Vivek Anand , Ravinath Kausik Kadayam Viswanathan , Tianmin Jiang , Erik Rylander , Mansoor Ali , Richard E. Lewis
CPC classification number: G01N24/082 , G01N24/081 , G01R33/448 , G01V3/32 , Y02A90/344
Abstract: Downhole fluid volumes of a geological formation may be estimated using nuclear magnetic resonance (NMR) measurements, even in organic shale reservoirs. Multi-dimensional NMR measurements, such as two-dimensional NMR measurements and/or, in some cases, one or more well-logging measurements relating to total organic carbon may be used to estimate downhole fluid volumes of hydrocarbons such as bitumen, light hydrocarbon, kerogen, and/or water. Having identified the fluid volumes in this manner or any other suitable manner from the NMR measurements, a reservoir producibility index (RPI) may be generated. The downhole fluid volumes and/or the RPI may be output on a well log to enable an operator to make operational and strategic decisions for well production.
-
-
-
-
-
Search Results
16
records
(took 0.018 seconds)
