Halliburton Energy Services, Inc.

Chevron U.s.a. Inc.

Randall Bennett Jones

Abbas Arian

Chung Lung Chang

Gary Wayne Kainer

Arthur Cheng

Ken A Smith

Georgios L Varsamis

Laurence T Wisniewski

Paul G Junghans

Dennis John Harris

Bruce W Mackay

Wes Ludwig

The disclosure addresses multiple embodiments of an acoustic isolator, and an acoustic logging tool which incorporates the acoustic isolator. The acoustic isolator is configured to minimize acoustic transmissions which could otherwise adversely affect acoustical measurements being made by an acoustic receiver. The described acoustic isolators include a plurality of longitudinally arranged mass members coupled to a central supporting structure, in a configuration to reduce acoustic transmissions in at least selected frequency ranges.

Acoustic isolator for downhole tools

The artificial lift system comprises a downhole tool suspended by a power conductive cable in a wellbore. The downhole tool comprises an atomizing chamber for conversion of the liquid into droplets having an average diameter less than or equal to 10,000 microns. Natural gas produced by a producing zone of the subterranean reservoir transports the vaporized liquid molecules to the well surface. In operation, the atomizing chamber is located above the liquid column in the wellbore.

Acoustic artificial lift system for gas production well deliquification

The disclosure addresses acoustic receivers including an acoustic isolator structure, and an acoustic logging tool which incorporates the acoustic receiver. The acoustic receiver isolation structure is configured to minimize acoustic transmissions which could otherwise adversely affect acoustical measurements being made by an acoustic receiver. The described acoustic receiver includes a plurality of longitudinally arranged mass members coupled to a central supporting structure, in a configuration to reduce acoustic transmissions in at least selected frequency ranges.

Acoustic receiver assembly for downhole tools

An acoustic attenuator assembly for an acoustic tool for performing acoustic investigation of a subterranean formation is disclosed. The acoustic attenuator assembly includes a first end portion () and a second end portion () having a bore therethough to enable passage of an electrical line. The acoustic attenuator assembly further includes a fiber portion () disposed between the first and second end portion so that the fiber portion attenuates at least a portion of acoustic energy when the acoustic energy is received by one or both of the first () and second () end portions. The fiber portion () includes a continuous flexible portion that allows relative deflection of the first () and second () end portions.

Broadband flex joint isolator for acoustic tools

The present invention is directed to an apparatus and method for coring a borehole in a hard rock sidewall of a well bore in a subterranean formation for testing purposes. The apparatus includes a drive motor for operation down hole, a flexible drive shaft coupled to the drive motor and a coring bit coupled to the flexible drive shaft, such that the coring bit is directly driven by the drive motor. The apparatus also includes a control circuit for controlling advancement of the coring bit into the subterranean formation. The apparatus also includes a rotating carousel for storing multiple core samples. The method includes the steps of activating the drive motor to rotate the output shaft; coupling the output shaft of the drive motor to the flexible drive shaft and rotating the coring bit with the flexible drive shaft.

Apparatus and method for hard rock sidewall coring of a borehole

The acoustic isolator assembly of the present invention comprises a elongated cylindrical body suited for connection to an acoustic array and subsequent disposition within a wellbore. According to one embodiment of the present invention, the acoustic isolator comprises a plurality of cylindrical isolator modules that are coaxially arranged to form the body of the tool. Each isolator module comprises a spring disposed within an outer housing. The separate isolator modules are attached to one another by connecting rods around which are disposed a plurality of metal spacers. The isolator module further comprises mechanical stops that limit the deflection of the spring during high axial loading. These features enable the acoustic isolator assembly to withstand the high loading that may be applied during logging operations. Therefore, the isolator modules are capable of supporting high compressive and tensile loads without suffering permanent deformation of the springs.

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Sugar Land, TX, United States of America

Randall Bennett Jones