Inner pipe delivery device applied to wire-line coring in low-water-level drilling construction

Abstract

The invention discloses an inner pipe delivery device applied to wire-line coring in low-water-level drilling construction, and relates to the technical field of inner pipe delivery, and the inner pipe delivery device is characterized by comprising a movable cabin, the movable cabin comprises an additional barrel and a cylinder, the interior of the additional barrel is hollow, the additional barrel is movably connected with a movable part, and a movable cavity is formed in the top of the movable part; the end, close to the movable cavity, of the movable piece is further provided with a round hole, the movable piece is movably connected with the cylinder through the round hole, the cylinder is further movably connected with two limiting pieces, the limiting pieces are movably connected with the additionally-installed barrel, and the additionally-installed barrel is provided with two connecting holes for the limiting pieces to move. The movable cabin and the connecting piece are additionally arranged between the end A and the end B of the fisher, the unclamping device is arranged on the upper portion of the device, and after the steel wire rope pulls the fisher and the inner pipe to reach the bottom of a hole, unclamping of the fisher and the inner pipe in the descending process of the inner pipe is avoided, and drilling tool damage caused by high-speed falling of the inner pipe assembly is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of inner tube delivery, and more particularly to an inner tube delivery device used in rope coring in low-water-level drilling construction. Background Art

[0002] Geological exploration can be broadly understood as geological work. It is an investigation and research work on the geological conditions such as rocks, stratigraphic structures, minerals, groundwater, landforms, etc. in a certain area using geological exploration methods such as surveying and mapping, geophysical exploration, geochemical prospecting, drilling, pit exploration, sampling testing, and geological remote sensing based on the needs of economic construction, national defense construction, and scientific and technological development.

[0003] In core drilling, a reel is a device that retrieves an inner tube from the bottom of the hole, retrieves the core, and then drops the inner tube to the bottom of the borehole. During drilling, if the flushing fluid is completely lost or the fluid level in the hole is low, the reel and inner tube can become unstuck during deployment, causing the inner tube assembly to fall at high speed and damage the drill string. In light of this, the inventors have proposed an inner tube delivery device for use in rope coring operations at low water levels. Summary of the Invention

[0004] The purpose of the present invention is to provide an inner tube delivery device for use in rope coring in low water level drilling construction, so as to solve the above problems.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions: an inner tube delivery device used for rope coring in low-water-level drilling construction, comprising a movable cabin, the movable cabin comprising an installation tube and a cylinder, the interior of the installation tube is hollow, the installation tube is movably connected to a movable part, a movable cavity is opened on the top of the movable part, a circular hole is also opened at one end of the movable part adjacent to the movable cavity, the movable part is movably connected to the cylinder through the circular hole, the cylinder is also movably connected to two limiting parts, the limiting parts are movably connected to the installation tube, and the installation tube is provided with two connecting holes for the movement of the limiting parts.

[0006] The present invention is further configured such that a first oblique cavity is provided at the top of the connecting hole.

[0007] The present invention is further configured such that: the installation cylinder is slidably connected to the movable part.

[0008] The present invention is further configured such that: a second oblique cavity is symmetrically provided at the bottom of the movable cavity.

[0009] The present invention is further configured as follows: the two limiting members are symmetrical about the center, the limiting member includes a limiting column and a half column, and the limiting column is fixedly connected to the half column.

[0010] The present invention is further configured to include a pressure piece, which is located in the installation cylinder and on the top of the movable piece.

[0011] The present invention is further configured as follows: it also includes a connecting piece, the connecting piece includes a limiting ring, a first connecting column is provided on the top of the limiting ring, the first connecting column is provided with an external thread, the first connecting column is threadedly connected to the mounting tube, and a second connecting column is provided at the bottom of the limiting ring, the second connecting column is provided with an external thread.

[0012] The present invention is further configured such that: an internal thread is provided in the top of the installation cylinder.

[0013] In summary, the present invention has the following beneficial effects:

[0014] The present invention installs a movable cabin and a connecting piece between the A end and the B end of the overshot device, and places the de-jamming device on the upper part of the device. After the wire rope pulls the overshot device and the inner tube to the bottom of the hole, the hammering action of the hitch overcomes the displacement of the spring elastic device, and the two-wing sliders are retracted. The de-jamming device falls to the upper part of the spring clamp of the overshot device under the action of gravity to achieve safe de-jamming, thereby preventing the overshot device and the inner tube from being de-jammed when the inner tube is slightly obstructed during the descent process or the release speed is faster than the natural descent of the inner tube, thereby preventing damage to the drilling tool caused by the high-speed fall of the inner tube assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an assembly diagram of the inner tube delivery device in an embodiment of the present invention;

[0016] Figure 2 This is a three-dimensional diagram of an inner tube delivery device used in low-water-level drilling construction according to an embodiment of the present invention;

[0017] Figure 3 This is a front view of the inner tube delivery device used in low water level drilling construction according to an embodiment of the present invention.

[0018] Figure 4 AA is a cross-sectional view of an inner tube delivery device used in low-water-level drilling construction according to an embodiment of the present invention;

[0019] Figure 5 This is the internal structure of the inner pipe delivery device used in low water level drilling construction in the embodiment of the present invention. Figure 1 ;

[0020] Figure 6 This is the internal structure of the inner pipe delivery device used in low water level drilling construction in the embodiment of the present invention. Figure 2 .

[0021] In the figure: 1. movable cabin; 2. connecting part; 3. pressure part; 4. A end of the salvage device; 5. de-carding device; 6. B end of the salvage device; 110. installation tube; 111. connecting hole; 112. first oblique cavity; 120. movable part; 121. circular hole; 122. movable cavity; 123. second oblique cavity; 130. limiting part; 131. limiting column; 132. half column; 140. cylinder; 210. first connecting column; 220. limiting ring; 230. second connecting column. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example:

[0024] An inner tube delivery device used for rope coring in low water level drilling construction, such as Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, the movable cabin 1 includes a mounting tube 110 and a cylinder 140. The mounting tube 110 is hollow and is movably connected to a movable member 120. A movable cavity 122 is defined at the top of the movable member 120. A circular hole 121 is defined at one end of the movable member 120, which is adjacent to the movable cavity 122. The movable member 120 is movably connected to the cylinder 140 through the circular hole 121. The cylinder 140 is also movably connected to two stoppers 130. The stoppers 130 are movably connected to the mounting tube 110. The mounting tube 110 is provided with two connection holes 111 for the stoppers 130 to move. The stoppers 130 can place the de-stuck device 5 at the top of the device to prevent the overshot device and inner tube from becoming stuck during descent, thereby damaging the drilling tool. When the wire rope pulls the salvage device and the inner tube to the bottom of the hole, the hammering action of the hitch can retract the limiter 130 to the installation tube 110, and the card remover 5 falls to the upper part of the spring clamp of the salvage device under the action of gravity to achieve safe unstuck.

[0025] In this embodiment, a first oblique cavity 112 is provided at the top of the connecting hole 111 .

[0026] In this embodiment, the mounting cylinder 110 is slidably connected to the movable member 120 .

[0027] In this embodiment, a second oblique cavity 123 is symmetrically provided at the bottom of the active cavity 122 , and the angle between the second oblique cavity 123 and the axis is 45°.

[0028] In this embodiment, the two limiting members 130 are symmetrical about the center. The limiting members 130 include a limiting column 131 and a half column 132 . The limiting column 131 and the half column 132 are fixedly connected.

[0029] In this embodiment, a pressure member 3 is further included, the pressure member 3 is located in the installation cylinder 110, and the pressure member 3 is located on the top of the movable member 120. In this embodiment, a spring is used as the pressure member 3, but it is not limited to a spring, and objects such as a circular column can also be used.

[0030] In this embodiment, a connector 2 is also included. The connector 2 includes a limiting ring 220. A first connecting column 210 is provided on the top of the limiting ring 220. The first connecting column 210 is provided with an external thread. The first connecting column 210 is threadedly connected to the mounting tube 110. A second connecting column 230 is provided on the bottom of the limiting ring 220. The second connecting column 230 is provided with an external thread. The second connecting column 230 is connected to the B end 6 of the salvage device. An internal thread is provided on the top of the mounting tube 110. The top of the mounting tube 110 is threadedly connected to the A end 4 of the salvage device. The de-carder 5 is movably connected to the A end 4 of the salvage device, the movable cabin 1, the connector 2 and the B end 6 of the salvage device, as shown in FIG. Figure 1 shown.

[0031] Working principle:

[0032] The present invention adds a movable cabin and a connector between the A end and the B end of the salvage device and installs them in the middle of the salvage device without affecting the original structure. The de-carding device is placed on the upper part of the device. After the salvage device and the inner tube are pulled by the wire rope to the bottom of the hole, the hammering action of the de-carding device overcomes the displacement of the spring elastic device, the two-wing sliders are retracted, and the de-carding device falls to the upper part of the spring clamp of the salvage device under the action of gravity to achieve safe de-carding.

[0033] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An inner tube delivery device for rope coring in low-water drilling construction, characterized by: It includes a movable cabin, which includes a mounting tube and a cylinder. The mounting tube is hollow inside, and the mounting tube is movably connected to a movable part. A movable cavity is provided on the top of the movable part, and a circular hole is provided at one end of the movable part adjacent to the movable cavity. The movable part is movably connected to the cylinder through the circular hole. The cylinder is also movably connected to two limiting parts, and the limiting parts are movably connected to the mounting tube. The mounting tube is provided with two connecting holes for the limiting parts to move.

2. The inner tube delivery device for rope coring in low-water drilling construction according to claim 1 is characterized by: A first oblique cavity is provided at the top of the connecting hole.

3. The inner tube delivery device for rope coring in low-water drilling construction according to claim 1 is characterized by: The adding cylinder is slidably connected to the movable part.

4. The inner tube delivery device for rope coring in low-water drilling construction according to claim 1 is characterized by: A second oblique cavity is symmetrically provided at the bottom of the movable cavity.

5. The inner tube delivery device for rope coring in low-water drilling construction according to claim 1 is characterized by: The two limiting members are symmetrical about the center, and the limiting member includes a limiting column and a half column, and the limiting column is fixedly connected to the half column.

6. The inner tube delivery device for rope coring in low-water drilling construction according to claim 1 is characterized by: It also includes a pressure piece, which is located in the installation cylinder and on the top of the movable piece.

7. The inner tube delivery device for rope coring in low-water drilling construction according to claim 1 is characterized by: It also includes a connecting piece, which includes a limiting ring. A first connecting column is provided on the top of the limiting ring. The first connecting column is provided with an external thread. The first connecting column is threadedly connected to the mounting tube. A second connecting column is provided at the bottom of the limiting ring. The second connecting column is provided with an external thread.

8. The inner tube delivery device for rope coring in low-water drilling construction according to claim 1 is characterized by: An internal thread is provided in the top of the installation cylinder.

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