4.
    发明专利
    未知

    公开(公告)号:DE3777155D1

    公开(公告)日:1992-04-09

    申请号:DE3777155

    申请日:1987-08-05

    Applicant: CONOCO INC

    Inventor: COLE JACK H

    Abstract: Apparatus includes a transportation structure for generating elliptically polarized shear waves in a soft earth medium. A suitable carrier includes a jack assembly (20,22,24) for transporting shear wave apparatus that includes a telescoping tube (16) for earth engagement. The shear wave apparatus, including a major or lower reaction mass (32) and a passive top reaction mass (72) is raised and lowered by the jack assembly (20,22,24) into operative position while the energy-coupling telescoping tube (16) is extendably forced into an earth medium so that, during shear wave generation, the vibration source or reaction mass (32) is continually imparting shear wave energy into the progressively extending telescoping tube to effect continual energy coupling into the surrounding earth medium. The reaction mass (32) is preferably driven by a plural hydraulic actuator system that imparts elliptically polarized vibration to the telescopic tube (16) which, in turn, imparts elliptically polarized shear waves into the surrounding earth medium.

    5.
    发明专利
    未知

    公开(公告)号:DE3881017D1

    公开(公告)日:1993-06-17

    申请号:DE3881017

    申请日:1988-11-11

    Applicant: CONOCO INC

    Inventor: COLE JACK H

    Abstract: 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.

    8.
    发明专利
    未知

    公开(公告)号:DE3776907D1

    公开(公告)日:1992-04-02

    申请号:DE3776907

    申请日:1987-08-05

    Applicant: CONOCO INC

    Inventor: COLE JACK H

    Abstract: An oscillating orbital vibrator comprises a rotatable shaft mounting a crank. A first race of a cylindrical bearing is affixed to the outer periphery of the crank. A second race of the bearing is affixed to the inner periphery of the opening of a reaction mass. A bearing is positioned between the bearing races. In use, when the shaft and the crank are rotated, the reaction mass orbitally oscillates to induce a vibratory motion.

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