Core-filling drilling tool of rope side wall
A drilling tool and rope technology, which is applied in the field of sidewall core drilling tools to ensure the number of cores, shorten the time of cores, and ensure continuity
Inactive Publication Date: 2012-09-12
刘宝林 +1
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Problems solved by technology
This method also has the problem of power transmission, and is not suitable for core drilling with a small borehole diameter.
Method used
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[0044] The present invention will be described in further detail below through specific examples, so as to help to understand the content of the present invention.
[0045] The sidewall core-busting drilling tool in this embodiment includes an outer pipe assembly, an inner pipe assembly and a fishing mechanism.
[0046] Such as figure 1 As shown, wherein, the outer tube assembly includes:
[0047] Coring drill pipe 100 is composed of multi-section outer pipes 1, 10, 25 and multiple joints 4, 14, 24 connected together by threads, wherein joint 4 is a positioning joint, and joint 14 is a spline sleeve with splines A joint; the end of the drill rod is provided with a drill bit 30 and a reamer 29, and the bottom side wall of the drill rod has a coring hole 32, so that the drill tool passes through the hole for side wall coring;
[0048] The guide eccentric wedge 43 is installed at the bottom of the drill pipe 100, and the guide inclined surface faces the coring hole 32 on the si...
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The invention discloses a core-filling drilling tool of a rope side wall, which is characterized in that: the core-filling drilling tool comprises a coring drilling rod, a guiding eccentric wedge, a single-action double-pipe core drilling tool which is used for drilling core on a side wall under the guiding function of the guiding eccentric wedge; an underground screw motor which is connected with the single-action double-pipe core drilling tool by a flexible shaft, wherein the lower part of a hydraulic control feeding mechanism is connected with the underground screw motor, the upper part thereof is matched with a claw hook mechanism for connection and disconnection by a claw hook, so as to lead the hydraulic control feeding mechanism to disconnect the feeding drilling to buckle a recovery drilling tool; a rope fishing tool which is buckled with a fishing barb connected at the end part of a hanging joint for realizing connection; and a separating device which is a sleeve for being sheathed on the rope fishing tool to lead a claw which is outward to be furled, so as to separate the claw of the rope fishing tool from the fishing barb of the hanging joint. The core-filling drilling tool can shorten the core filling time and ensure the core filling quantity and quality, and is particularly suitable for deep hole multi-section core filling.
Description
technical field [0001] The invention relates to a sidewall core-filling drilling tool, which is used for supplementing cores in core drilling. Background technique [0002] As an important exploration technology, core drilling technology has been widely valued at home and abroad. In order to accurately define ore-bearing areas, ore body quality, mineral reserves or define geological structures, it is necessary to obtain a sufficient number of cores. However, due to complex formation conditions, soft, broken, and easily eroded formations are often encountered, coupled with construction technology or operating level, drilling fluid and other reasons, often fail to meet the requirements of heart rate due to "lost heart" , so as to seriously affect the evaluation of mineral resources, and even cause serious consequences such as scrapping of drilling holes. [0003] In order to make up for the "lost heart" problem, in most cases, the eccentric wedge is lowered, and then the smal...
Claims
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IPC IPC(8): E21B25/00E21B31/12
Inventor 刘宝林李国民
Owner 刘宝林