METHOD FOR DETERMINING GEOLOGY WHILE DRILLING

    公开(公告)号:EP4306766A1

    公开(公告)日:2024-01-17

    申请号:EP22185155.3

    申请日:2022-07-15

    摘要: The invention relates to a method for determining the geology at a geographical location while drilling, which method comprises the steps of:
    - performing sonic drilling with a drill pipe, a sonic drilling head, wherein the drill pipe is coupled to the sonic drilling head and wherein the sonic drilling head has vibration means for vibrating the drill pipe;
    - measuring the vibrations of the drill pipe during drilling;
    - converting the measured vibrations from the time domain to the frequency domain by applying a Fourier transformation; and
    - determining the soil composition at the momentary drill depth by comparing the frequency pattern from the Fourier transformation with predefined frequency patterns for different soil compositions.

    Method of seismic exploration using elliptically polarized shear waves
    2.
    发明公开
    Method of seismic exploration using elliptically polarized shear waves 失效
    使用偏振极化波浪的地震勘探方法

    公开(公告)号:EP0256625A3

    公开(公告)日:1989-06-07

    申请号:EP87304927.4

    申请日:1987-06-03

    申请人: CONOCO INC.

    IPC分类号: G01V1/053 G01V1/153 G01V1/00

    CPC分类号: G01V1/153 G01V1/053

    摘要: The present invention relates to a method of seismic exploration utilizing vibrationally generated, elliptically polarized shear waves (62) in an earth medium (38) for subsequent detection of one or more dimensions of orthogonal particle motion. A preferred form of shear wave source (40) is of a type which couples a continually rotating longitudinal force into an earth medium thereby to propagate an elliptically polarized shear wave (62) for refraction, reflection or subsurface detection, for various forms of exploration.

    LOW FREQUENCY SEISMIC ACQUISITION USING A COUNTER ROTATING ECCENTRIC MASS VIBRATOR
    3.
    发明公开
    LOW FREQUENCY SEISMIC ACQUISITION USING A COUNTER ROTATING ECCENTRIC MASS VIBRATOR 审中-公开
    地震采集利用低频在旋转偏心质量振动器

    公开(公告)号:EP3033638A1

    公开(公告)日:2016-06-22

    申请号:EP14745304.7

    申请日:2014-07-10

    IPC分类号: G01V1/153 B06B1/16

    CPC分类号: G01V1/153 B06B1/164

    摘要: Method for seismic prospecting using counter-rotating (207-208) eccentric-mass (201, 202) vibrator (CREMV) technology adapted as vibrator sources for seismic prospecting to produce controlled sweeps, as in the manner used in modern seismic prospecting, but with large forces at low frequencies, e.g. forces > 275 kN at frequencies between 1 and 5 Hz. This is achieved by adapting the CREMV to enable rotational frequency and the eccentricity (205, 206) of the masses relative to their rotation axes (203-204) to be varied independently and simultaneously, and by designing the CREMV such that the radius of rotation of the center of mass of each rotating mass is on the order of 50 cm or more. The low frequency data obtained from such a seismic source enables improved detection and resolution of subsurface structures and better determination of subsurface properties

    摘要翻译: 用于使用地震勘探反向旋转(207-208)偏心质量块(201,202)振动器(CREMV)技术作为angepasst振动器源地震勘探用于产生受控扫描,如在现代地震勘探中使用的方式,但与方法 大部队在低频,如 力> 275千牛在1和5赫兹之间的频率。这是通过适应的CREMV使旋转频率和群众相对于它们的旋转轴(203-204)的偏心(205,206),以进行变化和unabhängig同时实现 ,和通过设计CREMV检查做各旋转块的质量中心的转动半径为50厘米或更大的量级上。 从寻求地震源获得的低频数据启用改进的检测和地下结构的分辨率和更好地确定地下特性的。

    Oscillating orbital vibrator
    4.
    发明公开
    Oscillating orbital vibrator 失效
    振动器耳环oszillierender Masse。

    公开(公告)号:EP0302152A1

    公开(公告)日:1989-02-08

    申请号:EP87306944.7

    申请日:1987-08-05

    申请人: CONOCO INC.

    发明人: Cole, Jack H.

    IPC分类号: G01V1/153 B06B1/16 B65G27/16

    CPC分类号: G01V1/153 B06B1/167

    摘要: An orbital vibrator (12) comprises a rotatable shaft (14) with a crank (28) attached thereto, a bearing (31) mounted on said crank, a reaction mass (30) mounted on said crank by means of said bearing and, by virtue of said mounting, orbitally oscillating about said crank in response to the rotation of said shaft in order to induce avibratory motion.

    摘要翻译: 轨道振动器(12)包括具有附接到其上的曲柄(28)的可旋转轴(14),安装在所述曲柄上的轴承(31),通过所述轴承安装在所述曲柄上的反作用质量块(30) 凭借所述安装,响应于所述轴的旋转围绕所述曲柄进行轨道摆动,以便引起辅助振动。

    Method of seismic exploration using elliptically polarized shear waves
    5.
    发明公开
    Method of seismic exploration using elliptically polarized shear waves 失效
    地震仪Untersuchungsverfahren手套椭圆偏振器Scherwellen。

    公开(公告)号:EP0256625A2

    公开(公告)日:1988-02-24

    申请号:EP87304927.4

    申请日:1987-06-03

    申请人: CONOCO INC.

    IPC分类号: G01V1/053 G01V1/153 G01V1/00

    CPC分类号: G01V1/153 G01V1/053

    摘要: The present invention relates to a method of seismic exploration utilizing vibrationally generated, elliptically polarized shear waves (62) in an earth medium (38) for subsequent detection of one or more dimensions of orthogonal particle motion. A preferred form of shear wave source (40) is of a type which couples a continually rotating longitudinal force into an earth medium thereby to propagate an elliptically polarized shear wave (62) for refraction, reflection or subsurface detection, for various forms of exploration.

    摘要翻译: 本发明涉及利用地球介质(38)中振动产生的椭圆偏振剪切波(62)进行地震勘探的方法,用于随后检测正交粒子运动的一个或多个维度。 剪切波源(40)的优选形式是将连续旋转的纵向力耦合到地球介质中,从而传播用于折射,反射或地下检测的椭圆偏振剪切波(62),用于各种形式的探索。

    Dowhole orbital seismic source
    9.
    发明公开
    Dowhole orbital seismic source 失效
    道路轨道地震源

    公开(公告)号:EP0325029A3

    公开(公告)日:1990-01-17

    申请号:EP88310669.2

    申请日:1988-11-11

    申请人: CONOCO INC.

    发明人: Cole, Jack H.

    IPC分类号: G01V1/153 G01V1/40

    摘要: Apparatus for simultaneously generating elliptically polarized seismic shear waves and compression waves downhole for coupling energy through the fluid into a borehole wall (12). The apparatus includes an elongate frame (26) for support in the borehole and the frame includes a drive means (36,42) energi­zable to impart an orbital motion to at least a portion of the frame thereby to generate an orbital shear wave.

    摘要翻译: 一种用于同时产生椭圆偏振地震横波和井下压缩波的装置,用于将通过流体的能量耦合到钻孔壁(12)中。 该设备包括用于支撑在钻孔中的细长框架(26),框架包括驱动装置(36,42),该驱动装置可激励以对框架的至少一部分进行轨道运动,从而产生轨道剪切波。