公开(公告)号：US10414649B2

公开(公告)日：2019-09-17

申请号：US15521467

申请日：2015-10-20

Applicant: Research Triangle Institute

Inventor： David L. Denton ,  Raghubir P. Gupta ,  Brian S. Turk ,  Vijay Gupta ,  Himanshu Paliwal

IPC: C01B3/16 ,  B01D53/48 ,  B01D53/62 ,  B01D53/14 ,  B01D53/83 ,  B01D53/96 ,  B01J7/02 ,  B01J19/00 ,  C01B3/56 ,  C10K1/00 ,  C10K1/10 ,  C10K1/20 ,  C10K1/32 ,  C10K3/04 ,  C10L3/10 ,  B01D53/52 ,  B01J20/34 ,  C01B3/52 ,  C01B17/04 ,  C01B17/74

Abstract: Acid gas compounds are removed from a process gas such as, for example, syngas or natural gas, by flowing a feed gas into a desulfurization unit to remove a substantial fraction of sulfur compounds from the feed gas and flowing the resulting desulfurized gas into a CO2 removal unit to remove a substantial fraction of CO2 from the desulfurized gas.

公开(公告)号：US20160003022A1

公开(公告)日：2016-01-07

申请号：US14753427

申请日：2015-06-29

Applicant: Research Triangle Institute

Inventor： Ginger D. Rothrock ,  Vikram Rao ,  Vijay Gupta ,  Leah Johnson

IPC: E21B43/267 ,  C09K8/62 ,  E21B43/26

CPC classification number: E21B43/267 ,  C04B28/02 ,  C09K8/42 ,  C09K8/467 ,  C09K8/62 ,  C09K8/66 ,  C09K8/80 ,  C09K2208/08 ,  E21B43/26 ,  C04B14/42 ,  C04B16/06 ,  C04B16/0675 ,  C04B16/0683 ,  C04B24/2658 ,  C04B24/38 ,  C04B20/0048 ,  C04B20/0056 ,  C04B2103/408 ,  C04B2103/44

Abstract: The present disclosure relates to cementitious fluids comprising additives configured to form a permeable cement matrix after curing of the cement. The cementitious fluids can comprise a cementitious medium (e.g., a cement slurry) with a plurality of fibers dispersed therein. The fibers can be hollow, can be porous, and can be degradable. The cementitious fluid particularly can be used in methods of stimulating hydrocarbon bearing formations. Specifically, the cementitious fluid can be injected into the formation to form or enlarge a fracture, and the fluid can be cured to form the permeable cement matrix, said permeability arising from a loosely assembled tubular network and/or passages remaining after degradation of the fibers.

Abstract translation: 本公开涉及包含添加剂的水泥质流体，所述添加剂被配置为在固化水泥之后形成可渗透的水泥基质。 水泥质流体可以包括其中分散有多根纤维的水泥质介质（例如，水泥浆）。 纤维可以是中空的，可以是多孔的，并且可以是可降解的。 水泥质流体特别可用于刺激含烃层的方法。 具体地说，可以将水泥质流体注入到地层中以形成或扩大断裂，并且可以使流体固化以形成可渗透的水泥基体，所述渗透性由松散组装的管状网络和/或纤维退化后残留的通道产生 。

公开(公告)号：US20140239164A1

公开(公告)日：2014-08-28

申请号：US14191032

申请日：2014-02-26

Applicant: Research Triangle Institute

Inventor： Ginger D. Rothrock ,  Mark W. Roberson ,  Vijay Gupta ,  Michele L. Ostraat ,  David F. Myers

IPC: G01N21/59

CPC classification number: G01N21/534

Abstract: The present disclosure provides sensing systems and methods that are useful for monitoring materials (e.g., cement) via light diffusion to identify characteristics thereof and changes therein. The systems can utilize a light source, a light sensor, and light transmitting members combined with the material to be monitored. In use, light from the light source can be allowed to scatter through the material via the light transmitting members for detection by the light sensor. The data regarding the light transfer can be transmitted utilizing a communication interface and can be analyzed using data processing equipment. The systems and methods may particularly be utilized in monitoring the reinforcing cement positioned between the casing and the formation in an oil well.

Abstract translation: 本公开提供了用于通过光扩散来监测材料（例如，水泥）以识别其特征和其中的变化的感测系统和方法。 该系统可以利用光源，光传感器和与被监测材料组合的透光构件。 在使用中，可以允许来自光源的光通过光传输部件散射穿过材料，以便由光传感器检测。 可以使用通信接口来发送关于光传输的数据，并且可以使用数据处理设备进行分析。 系统和方法可以特别地用于监测位于壳体和油井中的地层之间的增强水泥。

公开(公告)号：US11413572B2

公开(公告)日：2022-08-16

申请号：US16905055

申请日：2020-06-18

Applicant: Research Triangle Institute

Inventor： Aravind V. Rayer Rabindran ,  Vijay Gupta ,  Paul D. Mobley ,  Jak Tanthana ,  Shaojun Zhou ,  Finn Andrew Tobiesen ,  Thor Mejdell ,  Andreas Grimstvedt ,  Geir Haugen

IPC: B01D53/14 ,  B01D53/18

Abstract: A method with corresponding systems for reducing emission of amines to the atmosphere. The method includes a a) introducing a gas containing CO2 into an absorber; b) flowing the flue gas through an absorber having an absorbent with a water-lean solution having less than 50% water and one or more amines, with the absorbent capturing the CO2 and forming a reduced CO2 content gas having a baseline CO2 content; and c) washing the reduced CO2 content gas in a wash column with a wash solution comprising carbonic acid formed by addition of gaseous CO2 into the wash solution. In this method, the washing removes the amines from the reduced CO2 content gas and produces a reduced amine content gas exiting from the wash column.

公开(公告)号：US20180339902A1

公开(公告)日：2018-11-29

申请号：US16003716

申请日：2018-06-08

Applicant: Research Triangle Institute

Inventor： Brian S. Turk ,  Vijay Gupta ,  David L. Denton ,  Raghubir P. Gupta ,  Himanshu Paliwal

IPC: C01B3/16 ,  B01J7/02 ,  C10L3/10 ,  C10K3/04 ,  C10K1/32 ,  C10K1/20 ,  C10K1/10 ,  C10K1/00 ,  B01J19/00 ,  B01J20/34 ,  C01B3/52 ,  C01B17/04 ,  C01B17/74 ,  B01D53/14 ,  B01D53/52 ,  B01D53/96 ,  B01D53/83 ,  B01D53/62 ,  B01D53/48 ,  C01B3/56

Abstract: A water gas shift reaction is carried out on a feed gas comprising carbon monoxide to produce carbon dioxide and hydrogen gas. The feed gas is split into multiple input streams flowed into respective reactors coupled in series. Steam is supplied to the input stream fed to the first reactor. The shift reaction is carried out in each reactor, with an overall reduced consumption of steam relative to the amount of gas shifted. The water gas shift reaction may be performed in conjunction with removing acid gas compounds from a process gas such as, for example, syngas or natural gas, by flowing a feed gas into a desulfurization unit to remove a substantial fraction of sulfur compounds from the feed gas and flowing the resulting desulfurized gas into a CO2 removal unit to remove a substantial fraction of CO2 from the desulfurized gas.

公开(公告)号：US20190352177A1

公开(公告)日：2019-11-21

申请号：US16525116

申请日：2019-07-29

Applicant: Research Triangle Institute

Inventor： David L. Denton ,  Raghubir P. Gupta ,  Brian S. Turk ,  Vijay Gupta ,  Himanshu Paliwal

IPC: C01B3/16 ,  C10L3/10 ,  C01B3/56 ,  C01B17/74 ,  C01B17/04 ,  C01B3/52 ,  B01D53/48 ,  B01D53/62 ,  B01D53/14 ,  B01D53/83 ,  B01D53/96 ,  B01J20/34 ,  C10K1/00 ,  C10K1/10 ,  B01J19/00 ,  C10K1/20 ,  C10K1/32 ,  B01D53/52 ,  C10K3/04 ,  B01J7/02

Abstract: Acid gas compounds are removed from a process gas such as, for example, syngas or natural gas, by flowing a feed gas into a desulfurization unit to remove a substantial fraction of sulfur compounds from the feed gas and flowing the resulting desulfurized gas into a CO2 removal unit to remove a substantial fraction of CO2 from the desulfurized gas.

公开(公告)号：US09567841B2

公开(公告)日：2017-02-14

申请号：US14753427

申请日：2015-06-29

Applicant: Research Triangle Institute

Inventor： Ginger D. Rothrock ,  Vikram Rao ,  Vijay Gupta ,  Leah Johnson

IPC: E21B43/26 ,  C09K8/62 ,  E21B43/267

CPC classification number: E21B43/267 ,  C04B28/02 ,  C09K8/42 ,  C09K8/467 ,  C09K8/62 ,  C09K8/66 ,  C09K8/80 ,  C09K2208/08 ,  E21B43/26 ,  C04B14/42 ,  C04B16/06 ,  C04B16/0675 ,  C04B16/0683 ,  C04B24/2658 ,  C04B24/38 ,  C04B20/0048 ,  C04B20/0056 ,  C04B2103/408 ,  C04B2103/44

Abstract: The present disclosure relates to cementitious fluids comprising additives configured to form a permeable cement matrix after curing of the cement. The cementitious fluids can comprise a cementitious medium (e.g., a cement slurry) with a plurality of fibers dispersed therein. The fibers can be hollow, can be porous, and can be degradable. The cementitious fluid particularly can be used in methods of stimulating hydrocarbon bearing formations. Specifically, the cementitious fluid can be injected into the formation to form or enlarge a fracture, and the fluid can be cured to form the permeable cement matrix, said permeability arising from a loosely assembled tubular network and/or passages remaining after degradation of the fibers.

Abstract translation: 本公开涉及包含添加剂的水泥质流体，所述添加剂被配置为在固化水泥之后形成可渗透的水泥基质。 水泥质流体可以包括其中分散有多根纤维的水泥质介质（例如，水泥浆）。 纤维可以是中空的，可以是多孔的，并且可以是可降解的。 水泥质流体特别可用于刺激含烃层的方法。 具体地说，可以将水泥质流体注入到地层中以形成或扩大断裂，并且可以使流体固化以形成可渗透的水泥基体，所述渗透性由松散组装的管状网络和/或纤维退化后残留的通道产生 。

公开(公告)号：US20160311682A1

公开(公告)日：2016-10-27

申请号：US15135984

申请日：2016-04-22

Applicant: Research Triangle Institute

Inventor： Brian S. Turk ,  Vijay Gupta ,  David L. Denton ,  Raghubir P. Gupta ,  Himanshu Paliwal

IPC: C01B3/16 ,  B01J7/02 ,  B01J19/00 ,  C01B3/56

CPC classification number: C01B3/16 ,  B01D53/1425 ,  B01D53/1437 ,  B01D53/1462 ,  B01D53/1475 ,  B01D53/48 ,  B01D53/52 ,  B01D53/62 ,  B01D53/83 ,  B01D53/96 ,  B01D2252/2021 ,  B01D2252/20489 ,  B01D2253/1124 ,  B01D2257/304 ,  B01D2257/306 ,  B01D2257/308 ,  B01D2257/504 ,  B01J7/02 ,  B01J19/0046 ,  B01J20/3458 ,  B01J20/3483 ,  B01J2219/0059 ,  B01J2219/00594 ,  B01J2219/00756 ,  B01J2219/00759 ,  C01B3/52 ,  C01B3/56 ,  C01B17/0404 ,  C01B17/74 ,  C01B2203/0283 ,  C01B2203/0294 ,  C01B2203/0415 ,  C01B2203/042 ,  C01B2203/0475 ,  C01B2203/0485 ,  C01B2203/061 ,  C01B2203/1258 ,  C10K1/004 ,  C10K1/005 ,  C10K1/10 ,  C10K1/20 ,  C10K1/32 ,  C10K3/04 ,  C10L3/103 ,  C10L3/104 ,  C10L2290/12 ,  C10L2290/54 ,  C10L2290/541 ,  C10L2290/542 ,  C10L2290/547 ,  Y02A50/2341 ,  Y02C10/04 ,  Y02C10/06 ,  Y02C10/08 ,  Y02P20/152

Abstract: A water gas shift reaction is carried out on a feed gas comprising carbon monoxide to produce carbon dioxide and hydrogen gas. The feed gas is split into multiple input streams flowed into respective reactors coupled in series. Steam is supplied to the input stream fed to the first reactor. The shift reaction is carried out in each reactor, with an overall reduced consumption of steam relative to the amount of gas shifted. The water gas shift reaction may be performed in conjunction with removing acid gas compounds from a process gas such as, for example, syngas or natural gas, by flowing a feed gas into a desulfurization unit to remove a substantial fraction of sulfur compounds from the feed gas and flowing the resulting desulfurized gas into a CO2 removal unit to remove a substantial fraction of CO2 from the desulfurized gas.

Abstract translation: 对包含一氧化碳的进料气体进行水煤气变换反应以产生二氧化碳和氢气。 进料气体分成多个输入流，流入分别串联的反应器。 将蒸汽供应到输入到第一反应器的输入流。 在每个反应器中进行转移反应，相对于气体量的转移，蒸汽的消耗总体减少。 水煤气变换反应可以结合从工艺气体例如合成气或天然气中除去酸性气体化合物，通过将进料气体流入脱硫单元以从进料中除去大量硫化合物 气体并将得到的脱硫气体流入CO 2去除单元以从脱硫气体中除去大部分的CO 2。