公开(公告)号：US20170247609A1

公开(公告)日：2017-08-31

申请号：US15444817

申请日：2017-02-28

Applicant: Board of Regents, The University of Texas System

Inventor： Hugh Daigle ,  Chun Huh ,  Yusra Khan Ahmad

IPC: C09K8/92 ,  E21B43/20 ,  C09K8/86

CPC classification number: C09K8/92 ,  C09K8/58 ,  C09K8/86 ,  C09K2208/10

Abstract: The methods disclosed herein allow for the recovery of at least 55% of residual heavy oil from porous structures. In the disclosed methods, porous structures are contacted with emulsions having an aqueous continuous phase and an organic dispersed phase. The organic dispersed phase includes organic compounds having five or fewer carbon atoms (such as natural gas), which are typically difficult to emulsify because they are unstable at ambient conditions. To solve that problem, the emulsions disclosed herein are stabilized by nanoparticles having hydrophilic exterior surfaces. The nanoparticles make up at least 0.1% of the emulsion by weight. The use of hydrophilic nanoparticles as stabilizers combines the utility of natural gas liquids in enhanced oil recovery (due to their high solubility in residual oil and attendant viscosity reduction) with the utility of emulsions (delivery of viscosity-reducing agents along with an immiscible phase to push out the trapped oil).

公开(公告)号：US20150159079A1

公开(公告)日：2015-06-11

申请号：US14563572

申请日：2014-12-08

Applicant: Board of Regents, The University of Texas System

Inventor： Chun Huh ,  Krishna K. Panthi ,  Kishore K. Mohanty ,  Steven L. Bryant

IPC: C09K8/588 ,  C09K8/592 ,  E21B47/06 ,  E21B41/00 ,  E21B43/16 ,  E21B47/00

CPC classification number: C09K8/588 ,  C09K8/592 ,  C09K2208/10 ,  E21B43/16 ,  G01V3/081 ,  G01V3/26 ,  H01F1/0063

Abstract: The present disclosure provides a polymer gel and method of making and using the same for use in high-permeability layers. This precision conformance control is accomplished by using paramagnetic nanoparticles and the application of the magnetic oscillation of prescribed frequency at the wellbore. If the polymer gel were created unintentionally at a certain layer, or there is a need to remove the gel blockage at the later stage of oil production, the gel could be broken and removed to restore the productivity from the layer.

Abstract translation: 本公开内容提供了一种聚合物凝胶及其制备和使用该聚合物凝胶的方法，用于高渗透层。 这种精密一致性控制是通过使用顺磁纳米颗粒和在井筒处施加规定频率的磁振荡来实现的。 如果聚合物凝胶无意中在某一层产生，或者需要在油生产的后期去除凝胶堵塞，则可以破碎和除去凝胶以恢复该层的生产率。

公开(公告)号：US20150376493A1

公开(公告)日：2015-12-31

申请号：US14765426

申请日：2014-01-15

Applicant: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM

Inventor： Chun Huh ,  Nabijan Nizamidin ,  Gary A. Pope ,  Thomas E. Milner ,  Bingqing Wang

IPC: C09K8/58 ,  G01V3/26 ,  C09K8/80 ,  E21B43/16 ,  E21B47/00

CPC classification number: C09K8/58 ,  C09K8/805 ,  C09K2208/10 ,  E21B43/16 ,  E21B47/00 ,  G01V3/26

Abstract: Hydrophobic paramagnetic nanoparticles can be injected with the enhanced oil recovery injection water by incorporating them inside of surfactant micelles to serve as an oil tracer. A variety of paramagnetic nanoparticles that show different susceptibility and magnetization responses to applied magnetic oscillation can be injected at different injectors, so that the origin of the oil from the different enhanced oil recovery patterns could be quantitatively identified. The concentrations of the nanoparticles in the produced crude oil and brine can be easily and instantly measured individually, employing the magnetic susceptibility meter without contacting the fluids directly.

Abstract translation: 疏水性顺磁性纳米颗粒可以通过将其加入到表面活性剂胶束内作为油追踪剂，注入强化采油注入水。 可以在不同的注射器处注入对应用的磁振荡显示不同的磁化率和磁化响应的各种顺磁性纳米粒子，从而可以定量地鉴定来自不同强化油回收模式的油的来源。 生产的原油和盐水中的纳米颗粒的浓度可以单独容易地立即测量，使用磁化率计直接接触流体。

公开(公告)号：US09983327B2

公开(公告)日：2018-05-29

申请号：US14436325

申请日：2013-10-25

Applicant: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM

Inventor： Keith P. Johnston ,  Christopher W. Bielawski ,  Hitesh G. Bagaria ,  Ki Youl Yoon ,  Bethany M. Neilson ,  Chun Huh ,  Steven L. Bryant ,  Edward Lee Foster ,  Zheng Xue ,  Lynn Michelle Foster

IPC: G01V3/26 ,  B82Y30/00 ,  B82Y40/00

CPC classification number: G01V3/26 ,  B82Y30/00 ,  B82Y40/00

Abstract: A magnetic nanoparticle suitable for imaging a geological structure having one or more magnetic metal or metal oxide nanoparticles with a polymer grafted to the surface to form a magnetic nanoparticle, wherein the magnetic nanoparticle displays a colloidal stability under harsh salinity conditions or in a standard API brine.

公开(公告)号：US20150268370A1

公开(公告)日：2015-09-24

申请号：US14436325

申请日：2013-10-25

Applicant: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM

Inventor： Keith P. Johnston ,  Christopher W. Bielawski ,  Hitesh G. Bagaria ,  Ki Youl Yoon ,  Bethany M. Neilson ,  Chun Huh ,  Steven L. Bryant ,  Edward Lee Foster ,  Zheng Xue ,  Lynn Michelle Foster

IPC: G01V3/26

CPC classification number: G01V3/26 ,  B82Y30/00 ,  B82Y40/00

Abstract: A magnetic nanoparticle suitable for imaging a geological structure having one or more magnetic metal or metal oxide nanoparticles with a polymer grafted to the surface to form a magnetic nanoparticle, wherein the magnetic nanoparticle displays a colloidal stability under harsh salinity conditions or in a standard API brine.

Abstract translation: 一种磁性纳米颗粒，其适于对具有一个或多个磁性金属或金属氧化物纳米颗粒的地质结构进行成像，所述磁性金属或金属氧化物纳米颗粒与接枝到表面上的聚合物形成磁性纳米颗粒，其中所述磁性纳米颗粒在苛刻的盐度条件下或在标准的API盐水 。