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1.发明公开公开(公告)号：US20240068355A1
公开(公告)日：2024-02-29
申请号：US18344384
申请日：2023-06-29
CPC分类号： E21B47/006 , E21B21/062 , E21B21/068 , E21B21/08 , E21B41/02 , E21B43/27
摘要： This disclosure relates to systems for wellbore drilling and methods for preparing wellbore drilling fluid. The system can include a drilling fluid tank that holds wellbore drilling fluid for introduction into a wellbore, an additive distribution component fluidly coupled to the drilling fluid tank that holds a first additive, and a computing device communicatively coupled to the additive distribution component. The methods can include a computing device performing at least the following: receiving drilling parameters that identify wellbore drilling conditions of a wellbore drilling system, calculating a thermochemical sulfate reduction (TSR) proxy value of the wellbore. In response to determining that a predicted hydrogen sulfide concentration meets a predetermined threshold, the computing device can determine a first quantity of a first additive to be added to the wellbore drilling fluid and combine the first quantity of the first additive with the wellbore drilling fluid.
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公开(公告)号：US11942190B2
公开(公告)日：2024-03-26
申请号：US17167584
申请日：2021-02-04
发明人： Pan Luo
CPC分类号： G16C20/10 , G01N33/24 , G01N33/241
摘要： A method for evaluating thermal reactivity in source rock evaluation may include obtaining information relating to various source rock samples. The method may include determining reactivities of source rocks corresponding to the various source rock samples. The source rocks may be at a same level of thermal maturity in an area of interest. The method may include interpreting kinetic parameters derived from the plurality of source rock samples. The method includes comparing published, archived and measured kinetic parameters of source rocks in the area of interest. The method may include converting complex format of kinetic parameters into a single variable for reactivity for evaluation and characterization of source rock in the area of interest.
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3.发明公开公开(公告)号：US20230340876A1
公开(公告)日：2023-10-26
申请号：US17727580
申请日：2022-04-22
IPC分类号： E21B49/08
CPC分类号： E21B49/088 , E21B49/0875 , E21B2200/20
摘要： Methods and systems for determining an estimated reservoir property using a determined desorption stage are disclosed. The method includes determining a fluid property and composition of a first fluid sample obtained from a reservoir, determining a measured relative volume of gas components and isotope ratios of gas components of the sample, and determining an equation of state. The method also includes obtaining a second and third sample at two later times, determining a composition, a measured relative volume of gas components, and isotope ratios of gas components of the later samples, and calibrating the equation of state utilizing the fluid composition and measured relative volume of gas components. The method further includes predicting a relative volume of gas components from the equation of state, determining a desorption stage, determining a critical pressure, an extent of desorption and a quantity of produced desorbed gas and determining the estimated reservoir property.
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公开(公告)号：US20220246247A1
公开(公告)日：2022-08-04
申请号：US17167584
申请日：2021-02-04
发明人： Pan Luo
摘要： A method for evaluating thermal reactivity in source rock evaluation may include obtaining information relating to various source rock samples. The method may include determining reactivities of source rocks corresponding to the various source rock samples. The source rocks may be at a same level of thermal maturity in an area of interest. The method may include interpreting kinetic parameters derived from the plurality of source rock samples. The method includes comparing published, archived and measured kinetic parameters of source rocks in the area of interest. The method may include converting complex format of kinetic parameters into a single variable for reactivity for evaluation and characterization of source rock in the area of interest.
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公开(公告)号：US12129749B1
公开(公告)日：2024-10-29
申请号：US18359615
申请日：2023-07-26
摘要： Methods of the present disclosure may include obtaining an origin fluid having a calcium concentration of about 1.5 M or greater. A treatment fluid may be created by introducing an amount of slaked lime to the origin fluid to change a pH of the resulting treatment fluid to about 11 or greater. The treatment fluid may be introduced into a subterranean formation containing a formation gas comprising natural gas and carbon dioxide. The calcium in the treatment fluid may be allowed to react with the carbon dioxide within the subterranean formation to form calcite. The treated formation gas may be removed from the subterranean formation after the formation of calcite, wherein the concentration of carbon dioxide in the treated formation gas is lower than the formation gas before it was contacted with the treatment fluid.
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公开(公告)号：US11681072B2
公开(公告)日：2023-06-20
申请号：US17167663
申请日：2021-02-04
发明人： Pan Luo
CPC分类号： G01V9/005 , G01V99/005
摘要： A method for ranking thermal reactivities for kinetics assignment in basin modeling may include obtaining information relating to various source rock samples. The method may include determining thermal reactivities of source rocks corresponding to the various source rock samples. The source rocks are at a same level of thermal maturity in an area of interest. The method may include ranking the thermal reactivities at different thermal maturities. The method includes comparing published, archived and measured kinetic parameters of source rocks in the area of interest. The method may include sorting kinetic parameters in organofacies of a source rock formation in terms of reactivity and maturity. The method may include assigning kinetic parameters derived from an immature source rock unit to mature source rock units in a source rock formation in a sedimentary basin. The method may include evaluating the reactivities to improve selection and assignment of the kinetic parameters in the basin modeling.
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公开(公告)号：US20220244421A1
公开(公告)日：2022-08-04
申请号：US17167663
申请日：2021-02-04
发明人： Pan Luo
摘要： A method for ranking thermal reactivities for kinetics assignment in basin modeling may include obtaining information relating to various source rock samples. The method may include determining thermal reactivities of source rocks corresponding to the various source rock samples. The source rocks are at a same level of thermal maturity in an area of interest. The method may include ranking the thermal reactivities at different thermal maturities. The method includes comparing published, archived and measured kinetic parameters of source rocks in the area of interest. The method may include sorting kinetic parameters in organofacies of a source rock formation in terms of reactivity and maturity. The method may include assigning kinetic parameters derived from an immature source rock unit to mature source rock units in a source rock formation in a sedimentary basin. The method may include evaluating the reactivities to improve selection and assignment of the kinetic parameters in the basin modeling.
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公开(公告)号：US11047233B2
公开(公告)日：2021-06-29
申请号：US16553930
申请日：2019-08-28
发明人： Pan Luo , Peng Lu , Khaled Arouri
摘要： Embodiments provide a method for evaluating a hydrocarbon-bearing formation. The method includes the step of identifying a hydrocarbon sweet spot. The identifying step includes determining a carbon dioxide content of a gas sample retrieved from the hydrocarbon-bearing formation. The identifying step includes determining an isotopic signature of carbon dioxide of the gas sample. The carbon dioxide content of the gas sample retrieved from the hydrocarbon sweet spot can have a mole percentage ranging from 9 percent to 20 percent. The isotopic signature of carbon dioxide of the gas sample retrieved from the hydrocarbon sweet spot can have a δ13C value greater than −10 per mil. The identifying step can further include determining a cutoff range of the carbon dioxide content corresponding to the hydrocarbon sweet spot. The cutoff range can have a mole percentage ranging from 9 percent to 20 percent. The identifying step can further include obtaining a gas flow rate of the hydrocarbon-bearing formation. The gas flow rate can be greater than 10 million standard cubic feet per day.
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