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JPS6156753B2 |
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JPS61233195A |
A well coring apparatus is provided with the capability for monitoring the length of the core in the inner barrel (32) of a core barrel (16) and the rate at which the core enters the inner barrel (32). The device includes a Sonic Core Mo...
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JPS61216990A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS6138316B2 |
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JPS61130625U |
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JPS61501640A |
Apparatus for drilling a bore hole comprises a hammer (3) and a series of dual wall drill tubes (2). The hammer (3) is supplied with compressed air and is for use in applying successive percussive blows to a percussive drill cutting bit ...
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JPS61125589U |
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JPS6133954B2 |
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JPS61172990A |
A well coring apparatus (10) includes an outer barrel (12) and an inner barrel (18). The inner barrel (18) is sealed at one end with a sealing member (80) and has a reciprocating piston (70) disposed in the other end thereof. On O-ring (...
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JPS6176889U |
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JPS6171688U |
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JPS6171686U |
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JPS6171689U |
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JPS6114744Y2 |
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JPS6172191A |
The longitudinal position of an inner barrel within a core barrel assembly (10) can be adjusted and locked in the field without necessitating the disassembly of the cartridge cap assembly (34) within the core barrel tool (10), and theref...
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JPS6150246U |
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JPS6160990A |
@ A core spring type core catcher (32) and a full closure core catcher (40) are completely concealed from the core within a coring tool. The full closure catcher (42) is reliably actuated to assume a closed configuration without dependen...
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JPS6120838A |
PURPOSE: To obtain a column shaped sludge in the necesary depth by excavating with rotation a sludge picking pipe at the speed suitable for sludge picking in the necessary depth by the drawing up operation of a sludge picking rope. CONST...
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JPS60246989A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS6040287Y2 |
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JPS6052275B2 |
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JPS60200143A |
PURPOSE: To make it possible to collect a specimen in such a state that the natural state of the ground is held, by reducing the friction resistance between the specimen and a sampler inner wall by the fluid injected in the specimen when...
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JPS60185133A |
PURPOSE: To collect a sample efficiently in the undisturbed state and to perform a CBR test under the intact collected state, by replacing a core tube, which is used to dig a hole in the earth, with a sampler, whose diameter is smaller t...
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JPS60175695A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS60111988U |
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JPS60105794A |
A coring tool (10), which includes a flexible wire mesh (28) in which the core is disposed, includes a mechanism for maintaining tension on the wire mesh sleeve (28) which then seizes the core disposed within the sleeve (28), and which s...
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JPS60100609A |
PURPOSE: To prevent dislodging of the tool of a core bit by the heat generated during cutting in the stage of punching an annular hole part into a hard material and drawing a core by leading the compressed air supplied into the core bit ...
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JPS6074136U |
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JPS6088781A |
An improved coring device that incorporates a nonrotatable inner barrel disposed within the outer driving structure of the drill string which is coupled to the coring bit. A woven metal mesh sleeve is circumferentially mounted outside th...
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JPS6078093A |
An automatically operable hydraulic lift inner barrel is devised to lift the inner tube of the core barrel on a drill string. An inner mandrel is axially disposed within the outer tube of the coring tool. An outer piston which is selecti...
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JPS6078092A |
An improved coring device that incorporates a nonrotatable inner barrel disposed within the outer driving structure of the drill string which is coupled to a coring bit. A woven metal mesh sleeve is circumferentially mounted outside the ...
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JPS6078091A |
An improved coring device that incorporates a nonrotatable inner barrel disposed within the outer driving structure of the drill string which is coupled to a coring bit. A woven metal mesh sleeve is circumferentially mounted outside the ...
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JPS5933750B2 |
A core barrel flushing device and method is disclosed particularly for flushing drilling fluid, mud and other undesirable material from a pressure core barrel downhole at existing conditions and pressure. The flushing device (F) comprise...
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JPS5923114Y2 |
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JPS5923113Y2 |
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JPS5925073B2 |
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JPS5919237B2 |
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JPS5912835B2 |
Sampler and measurement apparatus in the form of a tube having opposite ends to be used with casings axially aligned therewith to form a common passageway through which can be moved instruments for taking samples and/or measurements, and...
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JPS59399Y2 |
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JPS5855317B2 |
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JPS58189489A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS58164613U |
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JPS58138835A |
PURPOSE: To perform bottom sampling without stirring the condition of the bottom under water by a method in which a sampling pipe is landed on the bottom under water by a hanging wire, the sampling pipe is dropped by separating it from t...
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JPS5833196Y2 |
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JPS58107807U |
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JPS58106091A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS5858388A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS581689U |
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JPS57147383U |
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JPS5741687B2 |
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