Methods for determining wettability alteration
    1.
    发明授权
    Methods for determining wettability alteration 有权
    确定润湿性变化的方法

    公开(公告)号:US09016111B2

    公开(公告)日:2015-04-28

    申请号:US13693944

    申请日:2012-12-04

    CPC classification number: G01N13/02 G01N2013/0208

    Abstract: A protocol for determining the effect of water composition on surface alteration is described using simple and less preparation sensitive, brine/oil and rock/brine/air systems when compared to conventional rock/brine/oil measurement methods. A model glass/brine/oil system is described and it is demonstrated that experimental measurements of contact angle obtained using a conventional approach agree well with the contact angles predicted using the proposed protocol.

    Abstract translation: 与传统的岩石/盐水/油测量方法相比,使用简单且较少制备敏感的盐水/油和岩石/盐水/空气系统来描述用于确定水组成对表面改变的影响的方案。 描述了模型玻璃/盐水/油系统,并且证明了使用常规方法获得的接触角的实验测量与使用所提出的方案预测的接触角很好地一致。

    INJECTION FLUID TUNING
    2.
    发明申请

    公开(公告)号:US20200040250A1

    公开(公告)日:2020-02-06

    申请号:US16601313

    申请日:2019-10-14

    Abstract: Injection fluid tuning is provided. In one possible implementation, injection fluid can be tuned by accessing both surface properties of rock found in a hydrocarbon reservoir of interest and a chemical composition of oil found in the reservoir of interest. An ion effect on wettability of a contact surface of the rock can be acquired and then used to formulate a tuned ion solution based on the ion effect on wettability of the contact surface of the rock. In another possible implementation, an electrolyte solution has an ionic composition and an ionic concentration configured to enhance recovery of oil from a reservoir. The electrolyte solution includes a content of direct contact ions including monovalent ions with a static polarizability larger than a preset limit sufficient to influence a contact surface of a rock in the reservoir to reach a desired wettability.

    Method and Apparatus for Determining Wettability of Materials
    3.
    发明申请
    Method and Apparatus for Determining Wettability of Materials 审中-公开
    用于确定材料润湿性的方法和装置

    公开(公告)号:US20150285725A1

    公开(公告)日:2015-10-08

    申请号:US14646017

    申请日:2013-11-21

    CPC classification number: G01N13/00 G01N25/00 G01N25/18

    Abstract: An apparatus to measure temperature difference between a first side of a wall of at least one known material and a fluid contacting said first side. A method to determine wettability of at least one known material for a given fluid comprising measuring the thermal difference between a first side of a wall of the at least one known material and the given fluid contacting said first side.

    Abstract translation: 一种测量至少一种已知材料的壁的第一侧与接触所述第一面的流体之间的温度差的装置。 确定用于给定流体的至少一种已知材料的润湿性的方法,包括测量所述至少一种已知材料的壁的第一侧和与所述第一面接触的给定流体之间的热差。

    Determining phase behavior of a reservoir fluid

    公开(公告)号:US10088597B2

    公开(公告)日:2018-10-02

    申请号:US14326370

    申请日:2014-07-08

    Abstract: Various implementations directed to determining a phase behavior of a reservoir fluid are provided. In one implementation, a method may include receiving a plurality of predetermined pore size data, a plurality of predetermined bulk fluid data, and a plurality of predetermined kerogen data that are based on historical data for a plurality of hydrocarbon reservoirs. The method may also include creating a library of a plurality of simulated phase behavior data for the predetermined pore size data, the predetermined bulk fluid data, and the predetermined kerogen data. The method may further include determining a phase behavior of a reservoir fluid disposed in an actual hydrocarbon reservoir using the library.

    FRACTURE INITIATION WITH AUXILIARY NOTCHES
    5.
    发明申请
    FRACTURE INITIATION WITH AUXILIARY NOTCHES 审中-公开
    与辅助器具的断裂启动

    公开(公告)号:US20160201440A1

    公开(公告)日:2016-07-14

    申请号:US14595983

    申请日:2015-01-13

    CPC classification number: E21B43/26

    Abstract: Improved notching techniques are described for transverse fracture initiation from the wellbore (cased or open). One or more auxiliary notches are formed that are sealed from borehole pressure increase, yet still deformable under the fracturing pressure in the wellbore. Through the use of the auxiliary notches, lower fracturing pressure and/or shallower notches can be used when compared to known notching techniques without auxiliary notching. The described approaches can also provide greater control over the initial direction of the fracture.

    Abstract translation: 描述了用于从井筒(套管或开放)的横向断裂开始的改进的开槽技术。 形成一个或多个辅助凹口,这些凹槽与钻孔压力增加密封,但仍然在井眼中的压裂压力下变形。 通过使用辅助凹口,与没有辅助凹口的已知开槽技术相比,可以使用较低的压裂压力和/或更浅的凹口。 所描述的方法还可以对骨折的初始方向提供更大的控制。

    Water Volume Fraction of Flowing Fluids
    6.
    发明申请
    Water Volume Fraction of Flowing Fluids 审中-公开
    流动液体的水体积分数

    公开(公告)号:US20160017707A1

    公开(公告)日:2016-01-21

    申请号:US14334843

    申请日:2014-07-18

    Abstract: A measurement tool having one or more measurement cells disposed in a fluid flow path is provided. Measurements are made in each of the measurement cells and a fluid type is identified based on the outcome of the measurements. A numerical value is associated with each measurement cell based on the identified fluid type, and a total fractional volume of the identified fluids is determined using the associated numerical values. There may be a relatively large number of measurement cells distributed so as to substantially cover the cross-sectional area of the flow path, relatively few measurement cells distributed randomly in fixed locations in the flow path, or a single measurement cell moveably located in the flow path. The measurement cells measure a property such as resistivity, capacitance, dielectric constant, or electrical impedance. The total fractional volumes of the identified fluids may be determined using a statistic.

    Abstract translation: 提供了具有设置在流体流路中的一个或多个测量单元的测量工具。 在每个测量单元中进行测量,并且基于测量的结果来识别流体类型。 基于所识别的流体类型,将数值与每个测量池相关联,并且使用相关联的数值确定所识别的流体的总分数体积。 可以存在相对大量的分布的测量单元,以便基本上覆盖流路的横截面积,相对较少的在流路中的固定位置随机分布的测量单元,或可移动地位于流动中的单个测量单元 路径。 测量单元测量诸如电阻率,电容,介电常数或电阻抗的性质。 所识别的流体的总体积可以使用统计量来确定。

    Measurement of surface energy components and wettability of reservoir rock utilizing atomic force microscopy
    7.
    发明授权
    Measurement of surface energy components and wettability of reservoir rock utilizing atomic force microscopy 有权
    利用原子力显微镜测量储层岩石的表面能量成分和润湿性

    公开(公告)号:US09110094B2

    公开(公告)日:2015-08-18

    申请号:US14158359

    申请日:2014-01-17

    Abstract: An instrument (and corresponding method) performs AFM techniques to characterize properties of a sample of reservoir rock. The AFM instrument is configured to have a probe with a tip realized from reservoir rock that corresponds to the reservoir rock of the sample. The AFM instrument is operated to derive and store data representing adhesion forces between the tip and the sample at one or more scan locations in the presence of a number of different fluids disposed between the tip and the sample. The AFM instrument is further configured to perform computational operations that process the data representing the adhesion forces for a given scan location in order to characterize at least one property of the rock sample at the given scan location. The properties can include total surface energy of the rock sample as well as wettability of the rock sample.

    Abstract translation: 仪器(和相应的方法)执行AFM技术来表征储层岩石样品的性质。 AFM仪器被配置为具有从储层岩石实现的具有对应于样品的储层岩石的尖端的探针。 操作AFM仪器以在存在位于尖端和样品之间的许多不同流体的情况下在一个或多个扫描位置导出和存储表示尖端和样品之间的粘附力的数据。 AFM仪器还被配置为执行计算操作,其处理表示给定扫描位置的粘附力的数据,以便表征给定扫描位置处的岩石样品的至少一个性质。 这些性质可以包括岩石样品的总表面能以及岩石样品的润湿性。

    Determination of interfacial or surface tension

    公开(公告)号:US10545080B2

    公开(公告)日:2020-01-28

    申请号:US14255680

    申请日:2014-04-17

    Abstract: A method and apparatus for measuring interfacial or surface tension of a first fluid dispersed in a second fluid, the method involving providing at least one substantially spherical droplet or bubble of the first fluid in a flowing stream of the second fluid in a flow channel, followed by passing the flowing stream comprising the droplet or bubble through a constriction in the flow channel, the constriction being sufficiently constricting so as to cause the droplet or bubble to deform away from its substantially spherical shape and measuring and comparing a physical property of the flowing stream both before and after the constriction, wherein the physical property changes as a result of the deformation of the droplet or bubble, and thereby inferring the interfacial or surface tension from the measured physical property.

    METHOD FOR PREDICTION OF LIVE OIL INTERFACIAL TENSION AT RESERVOIR CONDITIONS FROM DEAD OIL MEASUREMENTS

    公开(公告)号:US20180156939A1

    公开(公告)日:2018-06-07

    申请号:US15367635

    申请日:2016-12-02

    Abstract: Methods may include measuring an interfacial tension (IFT) for a dead oil sample prepared from a fluid within an interval of a formation; calculating a gas:oil ratio for the fluid within the interval of a formation at a specified temperature and pressure; calculating a live oil density for the fluid within the interval of a formation for the specified temperature and pressure; and converting the IFT for the dead oil sample to a corrected IFT measurement for a live oil within the interval of the formation from the calculated gas:oil ratio and the calculated density. Methods may also include constructing a depletion path for the dead oil sample from one or more isobars and one or more isotherms; and converting the IFT for the dead oil sample to a corrected IFT measurement from the calculated gas:oil ratio and the calculated live oil density for a live oil.

    MEASUREMENT OF SURFACE ENERGY COMPONENTS AND WETTABILITY OF RESERVOIR ROCK UTILIZING ATOMIC FORCE MICROSCOPY
    10.
    发明申请
    MEASUREMENT OF SURFACE ENERGY COMPONENTS AND WETTABILITY OF RESERVOIR ROCK UTILIZING ATOMIC FORCE MICROSCOPY 有权
    表面能量组分的测量和使用原子力显微镜的储层岩石的湿度

    公开(公告)号:US20150204903A1

    公开(公告)日:2015-07-23

    申请号:US14158359

    申请日:2014-01-17

    Abstract: An instrument (and corresponding method) performs AFM techniques to characterize properties of a sample of reservoir rock. The AFM instrument is configured to have a probe with a tip realized from reservoir rock that corresponds to the reservoir rock of the sample. The AFM instrument is operated to derive and store data representing adhesion forces between the tip and the sample at one or more scan locations in the presence of a number of different fluids disposed between the tip and the sample. The AFM instrument is further configured to perform computational operations that process the data representing the adhesion forces for a given scan location in order to characterize at least one property of the rock sample at the given scan location. The properties can include total surface energy of the rock sample as well as wettability of the rock sample.

    Abstract translation: 仪器(和相应的方法)执行AFM技术来表征储层岩石样品的性质。 AFM仪器被配置为具有从储层岩石实现的具有对应于样品的储层岩石的尖端的探针。 操作AFM仪器以在存在位于尖端和样品之间的许多不同流体的情况下在一个或多个扫描位置导出和存储表示尖端和样品之间的粘附力的数据。 AFM仪器还被配置为执行计算操作,其处理表示给定扫描位置的粘附力的数据,以便表征给定扫描位置处的岩石样品的至少一个性质。 这些性质可以包括岩石样品的总表面能以及岩石样品的润湿性。

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