Produced steam survey device and method
    1.
    发明授权
    Produced steam survey device and method 失效
    生产蒸汽测量装置及方法

    公开(公告)号:US5191210A

    公开(公告)日:1993-03-02

    申请号:US819732

    申请日:1992-01-13

    IPC分类号: E21B47/10 G01V5/12

    CPC分类号: E21B47/1015 G01V5/12

    摘要: A device and method for determining the flow of steam in a production well has a sonde with a pair of gamma ray detectors and a source of gaseous radioactive material therein. The sonde is lowered into the well and measured amounts of the gas are released and detected by the gamma detectors to thereby determine the volume and velocity of steam flowing in the production well as well as its depth of entry.

    摘要翻译: 用于确定生产井中的蒸汽流的装置和方法具有一个具有一对γ射线检测器的探头和其中的气体放射性物质源。 探头下降到井中,测量的气体量由伽马探测器释放和检测,从而确定在生产井中流动的蒸汽的体积和速度以及进入深度。

    Radioactive well logging to determine vertical brine flow
    2.
    发明授权
    Radioactive well logging to determine vertical brine flow 失效
    放射性测井以确定垂直盐水流

    公开(公告)号:US5065016A

    公开(公告)日:1991-11-12

    申请号:US535700

    申请日:1990-06-11

    IPC分类号: G01V5/10

    CPC分类号: G01V5/101

    摘要: Brines in earth formations in the vicinity of a well borehole are bombarded with neutrons. The neutrons are slowed to thermal energy and captured by sodium atoms in the brine according to the nuclear reaction .sup.23 Na (n, .gamma.) .sup.24 Na. Spaced arrays of gamma ray detectors in a sonde in the borehole obtain gamma ray measurements following activation to obtain measurements of horizontal brine flow past the borehole. The detector arrays are vertically spaced from each other along the axis of the sonde. Changes in the count ratios of the detector arrays indicates a vertical flow of the brine.

    摘要翻译: 在井眼附近的地层中的盐水被中子轰击。 根据核反应23Na(n,γ)24Na,中子被放慢到热能并被盐水中的钠原子俘获。 在钻孔中的探头中的伽马射线探测器的间隔阵列在激活之后获得伽马射线测量,以获得经过钻孔的水平盐水流的测量。 检测器阵列沿着探头的轴线彼此垂直间隔开。 检测器阵列的计数比的变化表示盐水的垂直流动。

    Method for determining the producibility of a hydrocarbon formation
    3.
    发明授权
    Method for determining the producibility of a hydrocarbon formation 失效
    确定烃地层可生产性的方法

    公开(公告)号:US4990773A

    公开(公告)日:1991-02-05

    申请号:US278316

    申请日:1988-12-01

    IPC分类号: E21B49/00 G01N21/64

    CPC分类号: E21B49/005 G01N21/64

    摘要: The invention is a method of evaluating a sample of an underground formation such as drill cuttings to determine the producibility of any hydrocarbons present in the formation by solvating a sample in a polar solvent which will solvate asphaltenes, solvating the sample in an aliphatic solvent which will solvate most crude fractions without solvating asphaltenes, quantitatively measuring the emission fluorescence at a wavelength below 400 nm of both solvated samples at an excitation wavelength at which most petroleum compounds fluoresce, and determining the producibility of any hydrocarbon present in the sample by comparing the emission fluorescence of the two samples to previous correlations made between fluorescence and known producibility.

    摘要翻译: 本发明是评估地下地层样品如钻屑的方法,以通过溶剂化沥青质的极性溶剂中溶剂化样品来确定存在于地层中的任何烃的可生产性,将样品溶解在脂族溶剂中,该脂肪族溶剂将 溶剂化大多数原油馏分而不溶剂化沥青质,定量测量在大多数石油化合物发荧光的激发波长下两种溶剂化样品波长低于400nm的发射荧光,并通过比较发射荧光测定样品中存在的任何烃的可生产性 的两个样品之间的相关性与以前的荧光和已知可生产性之间的相关性。

    Borehole fluid density well logging means and method
    4.
    发明授权
    Borehole fluid density well logging means and method 失效
    井眼流体密度测井手段和方法

    公开(公告)号:US4939362A

    公开(公告)日:1990-07-03

    申请号:US276734

    申请日:1988-11-28

    IPC分类号: E21B47/10 G01N9/24 G01V5/12

    CPC分类号: G01V5/12 E21B47/1015 G01N9/24

    摘要: The present invention is a density meter which includes a well logging sonde that is inserted into a borehole traversing an earthen formation. The sonde includes within it a source which emits gamma rays into the borehole fluid and a detector assembly which detects gamma rays from the borehole fluid and provides a count signal corresponding to a count of the detected gamma rays. A caliper is also located in the sonde and it continually measures the diameter of the borehole as the sonde moves through the borehole and provides a caliper signal corresponding to the diameter measurement. A cable connected to the detector assembly and to the caliper conveys the count signal and a caliper signal to the surface where surface electronics includes apparatus which processes the count signal and the caliper signal to provide a signal corresponding to the density of the fluid in the borehole.

    摘要翻译: 本发明是一种密度计,其包括插入穿过土层的钻孔的测井探头。 探测器包括在其中发射伽马射线到井眼流体的源和检测器组件,其检测来自井眼流体的伽马射线,并提供对应于所检测的伽马射线计数的计数信号。 探头也位于探头中,当探头移动穿过井眼时,它连续地测量钻孔的直径,并提供对应于直径测量的卡尺信号。 连接到检测器组件和卡尺的电缆将计数信号和卡尺信号传送到表面电子器件包括处理计数信号和卡尺信号的装置的表面,以提供对应于钻孔中的流体密度的信号 。

    Downhole ultrasonic transit-time flowmetering means and method
    5.
    发明授权
    Downhole ultrasonic transit-time flowmetering means and method 失效
    井下超声波传播时间流量测量方法及方法

    公开(公告)号:US4982383A

    公开(公告)日:1991-01-01

    申请号:US251276

    申请日:1988-09-30

    IPC分类号: E21B47/10 G01F1/66

    摘要: A sonde in a well logging system of the present invention includes caliper means providing a diameter signal corresponding to the diameter of a borehole traversing an earth formation. First and second transducers which, when so controlled, transmit an ultrasonic acoustical pulse into fluid flowing in the borehole or provides an electrical pulse in accordance with a received acoustical pulse from the fluid. A control network controls both transducers so that during one part of a measurement the first transducer transmits an acoustical pulse into the fluid while the second transducer receives an acoustical pulse after it has passed through the fluid. During another part of the measurement the second transducer is controlled to transmit an acoustical pulse into the fluid while the first transducer is controlled to receive the acoustical pulse after it has passed through the fluid and provides a signal in accordance with the received acoustical pulse. A signal circuit connected to both transducers provides a travel time signal corresponding to the travel times of the acoustical pulses for both parts of the measurement. A conventional well logging cable carries control signals from the surface to the control network and the travel time signal and the diameter signal to surface electronics. The surface electronics includes processing apparatus which provides the control signal to the cable and which derives the flow rate of the fluid flowing in the borehole in accordance with the travel time signal and the diameter signal.

    摘要翻译: 在本发明的测井系统中的探头包括提供对应于穿过地层的钻孔直径的直径信号的卡钳装置。 第一和第二换能器,当被如此控制时,将超声波脉冲传输到在井眼中流动的流体,或者根据接收到的来自流体的声学脉冲提供电脉冲。 控制网络控制两个换能器,使得在测量的一部分期间,第一换能器将声脉冲发射到流体中,而第二换能器在通过流体之后接收声学脉冲。 在测量的另一部分期间,控制第二换能器以将声脉冲传输到流体中,同时控制第一换能器以在其通过流体之后接收声学脉冲并根据接收的声学脉冲提供信号。 连接到两个换能器的信号电路提供与测量的两个部分的声学脉冲的行进时间相对应的行进时间信号。 常规测井电缆将控制信号从表面传输到控制网络,并将行进时间信号和直径信号传送到表面电子设备。 表面电子器件包括对电缆提供控制信号并且根据行进时间信号和直径信号导出在井眼中流动的流体的流量的处理装置。

    Downhole doppler flowmeter
    7.
    发明授权
    Downhole doppler flowmeter 失效
    井下多普勒流量计

    公开(公告)号:US4905203A

    公开(公告)日:1990-02-27

    申请号:US251286

    申请日:1988-09-30

    IPC分类号: E21B47/08 E21B47/10 G01F1/66

    摘要: A well logging system which monitors the flow rate of a fluid flowing in a borehole traversing an earth formation includes a sonde. A transmitter located in the sonde transmits acoustical waves into the fluid at a predetermined frequency. A receiver also located in the sonde receives reflected acoustical waves. The receiver also provides a signal corresponding to the received reflected acoustical waves. The provided signal is processed for being sent uphole by way of a cable. Electronics at the surface include circuitry which derives the velocity of the fluid in accordance with the frequency of the processed signal and the predetermined frequency. The circuitry provides an output signal corresponding to the derived velocity of the fluid flowing the borehole.

    Method for determining oil content of an underground formation
    8.
    发明授权
    Method for determining oil content of an underground formation 失效
    确定地下油层含油量的方法

    公开(公告)号:US4977319A

    公开(公告)日:1990-12-11

    申请号:US307118

    申请日:1989-02-03

    申请人: Irwin R. Supernaw

    发明人: Irwin R. Supernaw

    IPC分类号: G01N21/64 G01N33/24

    CPC分类号: G01N33/241 G01N21/64

    摘要: The invention is a method of evaluating a sample of an underground formation to determine the hydrocarbon content of any hydrocarbons present in the formation. It involves the steps of solvating a known volume of a sample in a known volume of a solvent which will solvate hydrocarbons, quantitatively measuring with a fluorometer the emission fluorescence below about 400 nanometers of the solvated sample at an excitation wavelength at which most petroleum compounds fluorescence, and determining the hydrocarbon content of any hydrocarbon present in the sample by comparing the emission fluorescence of said solvated sample to previous correlations. The previous correlations are drawn between known hydrocarbon contents of samples and the emission fluorescence of the known samples in said solvent.

    Sampling resistivity of formation fluids in a well bore
    9.
    发明授权
    Sampling resistivity of formation fluids in a well bore 失效
    井眼中地层流体的取样电阻率

    公开(公告)号:US4962665A

    公开(公告)日:1990-10-16

    申请号:US411786

    申请日:1989-09-25

    IPC分类号: E21B47/10 E21B49/10

    CPC分类号: E21B47/102 E21B49/10

    摘要: Formation fluid is received in and passed through a sonde supported by an armored well logging cable at a depth of interest in a well bore. Periodically, samples of the formation fluid are taken. Higher density portions of the fluid, which represent formation fluid and/or mud filtrate, are separated. The separated fluid is a sample from which the resistivity is measured. As sampling continues, the sample fluid becomes substantially formation fluid and an apparent R.sub.2 measurement is made. An electrical signal indicating the R.sub.2 at the depth of interest is sent to the surface for recording and further processing. R.sub.2 measurements can be taken at any desired number of depths of interest in the well bore.

    摘要翻译: 地层流体被接收并穿过由井眼测井深度感测的装甲测井电缆支撑的探空仪。 定期取出地层流体的样品。 分离表示地层流体和/或泥浆滤液的较高密度的流体部分。 分离的流体是测量电阻率的样品。 随着取样继续,样品流体变成基本的地层流体,并且进行明显的R2测量。 指示感兴趣深度处的R2的电信号被发送到表面用于记录和进一步处理。 可以在井眼中感兴趣的任何所需数量的深度进行R2测量。