Method of evaluating the capillary pressure curve of an underground deposit rocks based on rock cuttings measurements
    1.
    发明授权
    Method of evaluating the capillary pressure curve of an underground deposit rocks based on rock cuttings measurements 失效
    基于岩石测量的地下沉积岩的毛细管压力曲线评估方法

    公开(公告)号:US07092822B2

    公开(公告)日:2006-08-15

    申请号:US10514414

    申请日:2003-05-14

    IPC分类号: G01N15/08 G01N33/24

    摘要: A method of evaluating the capillary pressure curve of rocks of an underground reservoir from measurements on rock debris or fragments such as cuttings from the reservoir, over the total saturation range of these rocks, within a short period and at a low cost, from these measurements is disclosed. The method comprises measuring the permeability k of the debris, measuring the capillary pressure curve Pc as a function of the saturation of these fragments initially saturated with a fluid (brine for example) by subjecting them to centrifugation, and parametrizing a capillary pressure curve Pc satisfying empirical relations depending on adjustable parameters, constrained to adjust to an asymptotic part of the capillary curve measured by centrifugation, and to the value of permeability k measured on the cuttings, so as to obtain the whole of the capillary pressure curve. Applications include hydrocarbon reservoir evaluation.

    摘要翻译: 从这些测量结果可以看出,在这些岩石的总饱和度范围内,在这些岩石的总饱和度范围内,对来自储层的岩石碎屑或碎片,如岩石碎屑或碎屑的测量值,在短时间内和低成本下,对地下水库岩石的毛细管压力曲线进行评估。 被披露。 该方法包括测量碎片的渗透性k,测量毛细管压力曲线Pc作为最初饱和的流体(例如盐水)的这些碎片的饱和度的函数,通过使它们离心,并且对毛细管压力曲线Pc进行参数化,满足 经验关系取决于可调参数,受限于通过离心法测量的毛细管曲线的渐近部分,以及在切屑上测量的渗透率k值,以获得毛细管压力曲线的整体。 应用包括油气藏评估。

    Method and device for evaluating physical parameters of an underground deposit from rock cuttings sampled therein
    2.
    发明申请
    Method and device for evaluating physical parameters of an underground deposit from rock cuttings sampled therein 失效
    用于评估其中采样的岩屑的地下沉积物的物理参数的方法和装置

    公开(公告)号:US20050178189A1

    公开(公告)日:2005-08-18

    申请号:US10505006

    申请日:2003-02-19

    IPC分类号: G01N15/08

    摘要: Method and device for evaluating simultaneously, with the same equipment, physical parameters such as the absolute permeability and the porosity of fragments taken from a fragmented natural or artificial porous medium The porosity of the fragments is measured by means of helium pressure tests according to a protocol known in the art. The chamber (1) containing the fragments is communicated with a tank (11) whose volume is also known and containing helium at a known pressure. At pressure balance, the value of the solid volume can be deduced. The rock envelope volume and the fragments mass are also measured. Combining these measurements allows to determine the porosity of the samples and the density of the rock. Their permeability is then measured by immersing them in a viscous fluid and by communicating the chamber with viscous fluid at a determined pressure contained in a vessel (9) so as to compress the gas trapped in the pores of the rock, according to two different protocols. The values of the physical parameters are determined by modelling the evolution of the pressure or of the volume in the chamber and by means of an iterative adjustment. Applications: petrophysical measurements from drilling cuttings or crushed cores for example.

    摘要翻译: 用相同设备同时评估从碎片天然或人造多孔介质中获取的碎片的绝对渗透性和孔隙度的物理参数的方法和装置通过根据方案的氦气压力测试来测量碎片的孔隙率 本领域已知 含有碎片的室(1)与体积已知的罐(11)连通,并且在已知压力下含有氦。 在压力平衡下,可以推导出固体体积的值。 还测量了岩石体积和碎片质量。 结合这些测量可以确定样品的孔隙度和岩石的密度。 然后通过将它们浸入粘性流体中并通过将容器与包含在容器(9)中的确定压力的粘性流体连通来测量其渗透性,以便根据两种不同的方案压缩被捕获在岩石孔中的气体 。 物理参数的值通过对室中的压力或体积的演变进行建模并通过迭代调整来确定。 应用范围:例如来自钻屑或碎芯的岩石物理测量。

    Method and device for evaluating physical parameters of an underground deposit from rock cuttings sampled therein
    3.
    发明授权
    Method and device for evaluating physical parameters of an underground deposit from rock cuttings sampled therein 失效
    用于评估其中采样的岩屑的地下沉积物的物理参数的方法和装置

    公开(公告)号:US07131317B2

    公开(公告)日:2006-11-07

    申请号:US10505006

    申请日:2003-02-19

    IPC分类号: G01N15/08

    摘要: A method and device evaluate simultaneously, with the same equipment, physical parameters such as the absolute permeability and the porosity of fragments taken from a fragmented natural or artificial porous medium. The porosity of the fragments is measured by means of helium pressure tests according to a protocol known in the art. The chamber (1) containing the fragments is communicated with a tank (11) whose volume is also known and containing helium at a known pressure. At pressure balance, the value of the solid volume can be deduced. The rock envelope volume and the fragments mass are also measured. Combining these measurements allows to determine the porosity of the samples and the density of the rock. Their permeability is then measured by immersing them in a viscous fluid and by communicating the chamber with viscous fluid at a determined pressure contained in a vessel (9) so as to compress the gas trapped in the pores of the rock, according to two different protocols. The values of the physical parameters are determined by modelling the evolution of the pressure or of the volume in the chamber and by means of an iterative adjustment.

    摘要翻译: 一种方法和装置用相同的设备同时评价物理参数,例如从碎片天然或人造多孔介质中获取的碎片的绝对渗透性和孔隙率。 通过根据本领域已知的方案的氦压力测试来测量碎片的孔隙率。 含有碎片的室(1)与体积已知的罐(11)连通,并且在已知压力下含有氦。 在压力平衡下,可以推导出固体体积的值。 还测量了岩石体积和碎片质量。 结合这些测量可以确定样品的孔隙度和岩石的密度。 然后通过将它们浸入粘性流体中并通过将容器与包含在容器(9)中的确定压力的粘性流体连通来测量其渗透性,以便根据两种不同的方案压缩被捕获在岩石孔中的气体 。 物理参数的值通过对室中的压力或体积的演变进行建模并通过迭代调整来确定。

    Method of evaluating the capillary pressure curve of an underground deposit rocks based on rock cuttings measurements
    4.
    发明申请
    Method of evaluating the capillary pressure curve of an underground deposit rocks based on rock cuttings measurements 失效
    基于岩石测量的地下沉积岩的毛细管压力曲线评估方法

    公开(公告)号:US20050216223A1

    公开(公告)日:2005-09-29

    申请号:US10514414

    申请日:2003-05-14

    摘要: A method of evaluating the capillary pressure curve of rocks of an underground reservoir from measurements on rock debris or fragments such as cuttings from the reservoir, over the total saturation range of these rocks, within a short period and at a low cost, from these measurements is disclosed. The method comprises measuring the permeability k of the debris, measuring the capillary pressure curve Pc as a function of the saturation of these fragments initially saturated with a fluid (brine for example) by subjecting them to centrifugation, and parametrizing a capillary pressure curve Pc satisfying empirical relations depending on adjustable parameters, constrained to adjust to an asymptotic part of the capillary curve measured by centrifugation, and to the value of permeability k measured on the cuttings, so as to obtain the whole of the capillary pressure curve. Applications include hydrocarbon reservoir evaluation.

    摘要翻译: 从这些测量结果可以看出,在这些岩石的总饱和度范围内,在这些岩石的总饱和度范围内,对来自储层的岩石碎屑或碎片,如岩石碎屑或碎屑的测量值,在短时间内和低成本下,对地下水库岩石的毛细管压力曲线进行评估。 被披露。 该方法包括测量碎片的渗透性k,测量毛细管压力曲线Pc作为最初饱和的流体(例如盐水)的这些碎片的饱和度的函数,通过使它们离心,并且对毛细管压力曲线Pc进行参数化,满足 经验关系取决于可调参数,受限于通过离心法测量的毛细管曲线的渐近部分,以及在切屑上测量的渗透率k值,以获得毛细管压力曲线的整体。 应用包括油气藏评估。

    Method of evaluating physical parameters of an underground reservoir from rock cuttings taken therefrom
    5.
    发明授权
    Method of evaluating physical parameters of an underground reservoir from rock cuttings taken therefrom 有权
    从取自岩屑的地下水库的物理参数评估方法

    公开(公告)号:US06453727B1

    公开(公告)日:2002-09-24

    申请号:US09883387

    申请日:2001-06-19

    IPC分类号: G01N1508

    CPC分类号: G01N15/08

    摘要: System of evaluating physical parameters such as the absolute permeability of porous rocks of a zone of an underground reservoir, from fragments taken from this zone, such as rock cuttings carried along by the drilling mud. Rock fragments (F) are immersed in a viscous fluid contained in a vessel (1). Pumping means (2, 3) first inject into vessel (1) a fluid under a pressure that increases with time, up to a determined pressure threshold, so as to compress the gas trapped in the pores of the rock. This injection stage is followed by a relaxation stage with injection stop. The pressure variation measured by detectors (7, 8) during these two successive stages is recorded by a computer (9). The evolution of the pressure during the injection process being modelled from initial values selected for the physical parameters of the fragments, the computer adjusts them iteratively so as to best get the modelled pressure curve to coincide with the pressure curve really measured. Application: petrophysical measurement.

    摘要翻译: 评估物理参数的系统,例如地下储层区域的多孔岩石的绝对渗透率,来自该区域的碎片,例如钻井泥浆携带的岩屑。将碎片(F)浸入粘稠流体 容纳在容器(1)中。 抽吸装置(2,3)首先在随压力增加的压力下将容器(1)注入容器(1)中,直至达到确定的压力阈值,以压缩被捕获在岩石孔中的气体。 该注射阶段之后是放电阶段,注射停止。 在这两个连续阶段由检测器(7,8)测量的压力变化由计算机(9)记录。 注射过程中压力的演变由从碎片物理参数选择的初始值建模,计算机迭代调整,以最佳地得到模拟压力曲线,与实际测量的压力曲线一致。应用:岩石物理测量 。

    Method and device for evaluating physical parameters of an underground reservoir from rock cuttings taken therefrom
    6.
    发明授权
    Method and device for evaluating physical parameters of an underground reservoir from rock cuttings taken therefrom 失效
    用于评估地下储层的物理参数的方法和装置,该岩石从其中取出的岩屑

    公开(公告)号:US07082812B2

    公开(公告)日:2006-08-01

    申请号:US10809895

    申请日:2004-03-26

    IPC分类号: G01N15/08

    摘要: Method and device for evaluating, simultaneously and with a single equipment, physical parameters such as the absolute permeability and the porosity of fragments taken from a fragmented artificial or natural porous medium.The porosity of the fragments is measured by means of pressure tests using helium or any other gas, according to a protocol known in the art. Chamber (1) in which they are contained is communicated with a tank (11) of known volume containing helium at a known pressure. At pressure balance, the value of the solid volume can be deduced. The rock envelope volume and the mass in fragments are also measured. The porosity of the samples and the density of the rock are determined by combining these measurements. Their permeability is then measured by immersing them in a liquid and by communicating the chamber with a liquid initially at a predetermined pressure contained in an accumulator (9) so as to compress the gas trapped in the pores of the rock. The values of the physical parameters are determined by modelling the evolution of the volume of liquid injected in the chamber and by means of an iterative adjustment.Applications: petrophysical measurements from drill cuttings or crushed cores for example.

    摘要翻译: 用于评估,同时和使用单个设备的物理参数,例如从碎片人造或天然多孔介质中获取的碎片的绝对渗透性和孔隙率。 根据本领域已知的方案,通过使用氦气或任何其它气体的压力测试来测量碎片的孔隙率。 其中容纳的室(1)与已知体积的具有已知压力的氦的容器(11)连通。 在压力平衡下,可以推导出固体体积的值。 还测量了岩石包络体积和碎片中的质量。 通过组合这些测量来确定样品的孔隙度和岩石的密度。 然后通过将它们浸入液体中并通过最初以包含在蓄液器(9)中的预定压力的液体与液体连通以便压缩被捕获在岩石孔隙中的气体来测量它们的渗透性。 物理参数的值通过模拟在室中注入的液体的体积的演变以及通过迭代调整来确定。 应用:例如钻屑或碎芯的岩石物理测量。

    Method of determining multiphase flow parameters of a porous medium Taking account of the local heterogeneity
    7.
    发明申请
    Method of determining multiphase flow parameters of a porous medium Taking account of the local heterogeneity 失效
    确定多孔介质的多相流参数的方法考虑到局部异质性

    公开(公告)号:US20060047432A1

    公开(公告)日:2006-03-02

    申请号:US11212760

    申请日:2005-08-29

    IPC分类号: G01N15/08 G01V1/40

    CPC分类号: G01N33/241 G01N15/082

    摘要: A method with application for evaluation or production of a reservoir for determining multiphase flow parameters of a porous medium such as a rock, from the interpretation of displacement experiments. From an injection experiment on a rock sample, the saturation profiles are measured in different sections of the sample. The experimental data are then subjected to a preliminary interpretation by means of a numerical simulation code allowing production of simulated pressure profiles. These profiles are then combined with the measured saturation profiles so as to evaluate the local properties of the sample in terms of capillary pressure. These properties are then re-injected into the simulator as input data so as to finely interpret the flow parameters while respecting the evolutions of the differential pressure, of the displaced fluid production and of the saturation profiles.

    摘要翻译: 应用于评估或生产用于确定多孔介质如岩石的多相流动参数的储层的方法,从位移实验的解释。 从岩石样品的注射实验中,在样品的不同部分测量饱和曲线。 然后通过允许产生模拟压力分布的数值模拟代码对实验数据进行初步解释。 然后将这些轮廓与测量的饱和曲线组合,以便根据毛细管压力来评估样品的局部性质。 然后将这些特性作为输入数据重新注入模拟器,以便精确地解释流动参数,同时考虑压差的变化,排出的流体产生和饱和曲线。

    Method of determining the permeability of an underground medium from NMR measurements of the permeability of rock fragments from the medium
    8.
    发明授权
    Method of determining the permeability of an underground medium from NMR measurements of the permeability of rock fragments from the medium 失效
    通过NMR测量岩石碎片从介质的渗透性测定地下介质渗透率的方法

    公开(公告)号:US07388373B2

    公开(公告)日:2008-06-17

    申请号:US11012096

    申请日:2004-12-16

    IPC分类号: G01V3/00 G01L7/00 G01N15/08

    CPC分类号: G01R33/44

    摘要: Method of determining the permeability of an underground medium from NMR logs of the permeability of rock fragments from the medium, based on prior calibration of the permeability resulting from this measurements, from direct measurement on rock fragments, such as cuttings for example. The method mainly comprises measuring permeability (k) from rock fragments, measuring the signal produced by a device allowing NMR analysis of the rock fragments previously saturated with a protonated liquid (brine for example), obtaining optimum values for the parameters of a relation giving the permeability as a function of the NMR signal, and applying this relation to the well zones that have already been subjected to NMR logging but for which no direct permeability measurements are available. One example of one of the applications for the present invention is the evaluation of a hydrocarbon reservoir.

    摘要翻译: 基于岩石碎片(例如切屑)的直接测量,根据从该测量得到的渗透性的现有校准,从NMR测井中确定岩石碎片从介质的磁导率的地磁介质的渗透性的方法。 该方法主要包括从岩石碎片测量渗透率(k),测量由先前用质子化液体(例如盐水)饱和的岩石碎片进行NMR分析的装置产生的信号,获得给出 作为NMR信号的函数的渗透率,并且将这种关系应用于已经经历NMR测井但是没有直接磁导率测量可用的井区。 本发明的一个应用的一个例子是烃储层的评估。

    Method of determining multiphase flow parameters of a porous medium taking account of the local heterogeneity
    9.
    发明授权
    Method of determining multiphase flow parameters of a porous medium taking account of the local heterogeneity 失效
    考虑到局部异质性,确定多孔介质的多相流参数的方法

    公开(公告)号:US07333892B2

    公开(公告)日:2008-02-19

    申请号:US11212760

    申请日:2005-08-29

    IPC分类号: G01V1/40 G01N15/08 E21B47/00

    CPC分类号: G01N33/241 G01N15/082

    摘要: A method with application for evaluation or production of a reservoir for determining multiphase flow parameters of a porous medium such as a rock, from the interpretation of displacement experiments. From an injection experiment on a rock sample, the saturation profiles are measured in different sections of the sample. The experimental data are then subjected to a preliminary interpretation by means of a numerical simulation code allowing production of simulated pressure profiles. These profiles are then combined with the measured saturation profiles so as to evaluate the local properties of the sample in terms of capillary pressure. These properties are then re-injected into the simulator as input data so as to finely interpret the flow parameters while respecting the evolutions of the differential pressure, of the displaced fluid production and of the saturation profiles.

    摘要翻译: 应用于评估或生产用于确定多孔介质如岩石的多相流动参数的储层的方法,从位移实验的解释。 从岩石样品的注射实验中,在样品的不同部分测量饱和曲线。 然后通过允许产生模拟压力分布的数值模拟代码对实验数据进行初步解释。 然后将这些轮廓与测量的饱和曲线组合,以便根据毛细管压力来评估样品的局部性质。 然后将这些特性作为输入数据重新注入模拟器,以便精确地解释流动参数,同时考虑压差的变化,排出的流体产生和饱和曲线。

    Method for determining of the formation factor for a subterranean deposit from measurements on drilling waste removed therefrom
    10.
    发明授权
    Method for determining of the formation factor for a subterranean deposit from measurements on drilling waste removed therefrom 失效
    从其上移除的钻井废料的测量中确定地下沉积物的形成因子的方法

    公开(公告)号:US07319332B2

    公开(公告)日:2008-01-15

    申请号:US10554598

    申请日:2004-04-22

    IPC分类号: G01V3/00 G01N15/08

    CPC分类号: G01N33/241

    摘要: Method and device for determining the formation factor of underground zones from drill cuttings. The device comprises a cell (1) associated with a device for measuring the electrical conductivity of the cell with the content thereof. The cell containing the drill cuttings is filled with a first electrolyte solution (A) of known conductivity (σA). After saturation of the drill cuttings by first solution (A), the global electrical conductivity (σ*A) of the cell with the content thereof is determined. After discharging first solution (A), the cell containing the drill cuttings is filled with a second electrolyte solution (B) of known conductivity (σB), and the global electrical conductivity (σ*B) of the cell containing the second solution and the cuttings saturated with the first solution is determined. The cuttings formation factor (FF) is deduced therefrom by combination of the measurements.

    摘要翻译: 用于确定钻屑地下区域的形成因子的方法和装置。 该装置包括与用于测量其含量的电池的导电性的装置相关联的电池(1)。 含有钻屑的电池填充有已知电导率(σσA)的第一电解质溶液(A)。 在通过第一溶液(A)对钻屑进行饱和后,确定具有其含量的电池的全局电导率(σ* SUB A)。 在排出第一溶液(A)之后,含有钻屑的电池填充有已知电导率(σσB)的第二电解质溶液(B),并且全局电导率(σ* 确定含有第二溶液的电池和第一溶液饱和的切屑。 通过测量的组合从中推导出切屑形成因子(FF)。