Horizontal wire-line coring while-drilling inclinometer

Abstract

The utility model relates to the technical field of drilling track measuring equipment, and provides a horizontal wire line coring while-drilling inclinometer which comprises a fishing head, a hydraulic pushing mechanism, a drill bit limiter, a connecting rod and an inclinometer which are sequentially connected and arranged in the axial direction. A first liquid passing channel is formed in the middle of the fishing head, a second liquid passing channel is formed in the hydraulic pushing mechanism, and the first liquid passing channel is communicated with the second liquid passing channel; a plug is installed in the hydraulic pushing mechanism, and a sealing plug ball is embedded in the plug. According to the drilling inclination measuring tool, drilling inclination measuring can be conveniently carried out, the inclination measuring tool is prevented from being clamped and buried, and the inclination measuring tool can be normally taken out.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling trajectory measurement equipment, in particular to a horizontal rope coring and drilling inclinometer. Background Art

[0002] During the horizontal rope coring drilling process, the borehole trajectory often changes, and it is necessary to measure the inclination in time to grasp the changes in the top angle and azimuth of the borehole so as to take effective measures to deal with it. It is also one of the six major indicators of borehole quality required in the core drilling regulations. The inclination measurement needs to be conducted every 50 meters during the drilling process. In case of directional holes or special holes, the inclination measurement needs to be increased. During the hole inclination measurement process, it is necessary to lift the large drill and pull all the rope drill rods out of the hole. However, there is a huge risk of hole wall collapse, the inclination measuring instrument being stuck or the inclination measuring instrument being unable to enter the bottom of the hole during the inclination measurement. If the large drill is not lifted, the instrument cannot measure the azimuth in the casing. Therefore, a horizontal rope coring inclination measuring device with a boosting effect and convenient for drilling inclination measurement is designed. Utility Model Content

[0003] The utility model aims to provide a horizontal rope coring and drilling inclinometer which can facilitate borehole inclinometer measurement, avoid the inclinometer instrument from being stuck, and the inclinometer can be taken out normally.

[0004] The embodiment of the utility model is realized by the following technical scheme: a horizontal rope coring and inclinometer while drilling device comprises a fishing head, a hydraulic pushing mechanism, a drill stopper, a connecting rod and an inclinometer which are sequentially connected and arranged along the axial direction; a first liquid passage is provided in the middle of the fishing head, a second liquid passage is provided in the hydraulic pushing mechanism, and the first liquid passage is communicated with the second liquid passage; a plug is installed in the hydraulic pushing mechanism, and a sealing plugging ball is embedded in the plug.

[0005] Furthermore, an annular seal is installed outside the hydraulic propulsion mechanism, and the annular seal is provided in at least two groups and is stacked along the axial direction of the hydraulic propulsion mechanism.

[0006] Furthermore, a through hole is provided at the front end of the hydraulic pushing mechanism, the through hole is arranged close to the plug, and the through hole is communicated with the plug.

[0007] Furthermore, the surface of the drill stopper is provided with a limiting protrusion extending radially outward.

[0008] Furthermore, the plug is detachably connected to the interior of the hydraulic pushing mechanism by thread, and a conical hole adapted to the sealing ball is provided in the plug.

[0009] Furthermore, the connecting rod is made of non-magnetic material.

[0010] Furthermore, a rope ring groove is provided in the middle of the salvage head.

[0011] Furthermore, the connecting rod is connected to the drill stopper and the inclinometer by threads.

[0012] The technical solution of the embodiments of the utility model has at least the following advantages and beneficial effects: the utility model can achieve sealing by blocking the hydraulic pushing mechanism with an annular seal and a sealing ball, so that hydraulic pushing can accurately and smoothly go down to the bottom of the hole for inclination measurement, and the entire instrument cannot be separated from the drill bit and fall into the bare hole section. At the same time, the head is connected to the wire rope, which makes it easier to salvage and avoids the inclinometer being stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 A schematic diagram of the structure of the horizontal rope coring while drilling inclinometer provided by an embodiment of the utility model when in use;

[0015] Figure 2 It is a structural schematic diagram of the horizontal rope coring while drilling inclinometer in the utility model;

[0016] Figure 3 for Figure 2 A partial enlarged view of point A in the figure.

[0017] Icons: 1- fishing head, 11- first liquid passage, 12- rope groove, 2- hydraulic pushing mechanism, 21- second liquid passage, 22- through hole, 3- drill stopper, 31- limit protrusion, 4- connecting rod, 5- inclinometer, 6- annular seal, 7- plug, 71- conical hole, 8- sealing plug ball. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0021] Example

[0022] The following is further described in conjunction with specific embodiments. Figure 1-Figure 3 As shown, this embodiment is a horizontal rope coring and drilling inclinometer, comprising a fishing head 1, a hydraulic pushing mechanism 2, a drill stopper 3, a connecting rod 4 and an inclinometer 5 which are sequentially connected and arranged along the axial direction; a first liquid passage 11 is provided in the middle of the fishing head 1, a second liquid passage 21 is provided in the hydraulic pushing mechanism 2, and the first liquid passage 11 is communicated with the second liquid passage 21; a plug 7 is installed in the hydraulic pushing mechanism 2, and a sealing ball 8 is embedded in the plug 7; specifically, the inclinometer measures inclinometer in the rope drill pipe, and through hydraulic pushing, hydraulic pressure enters along the first liquid passage 11 of the fishing head 1 and the second liquid passage 21 of the hydraulic pushing mechanism 2, so that the sealing ball 8 is pushed to block the hole of the plug 7, and then the whole inclinometer moves relative to the drill pipe, so that the inclinometer 5 extends out to contact the bottom of the hole. At the same time, the inclinometer can also avoid the problem of being stuck and difficult to remove by measuring inclinometer in the rope drill pipe.

[0023] Reference Figure 2 As shown, an annular seal 6 is installed outside the hydraulic pushing mechanism 2 in this embodiment, and the annular seal 6 is provided with at least two groups and stacked along the axial direction of the hydraulic pushing mechanism 2; it is convenient to seal the waterway and hydraulically push the instrument to the bottom of the hole. Specifically, there is a small gap between the annular seal 6 and the inner wall of the drill pipe, so that the entire inclinometer can move relative to the drill pipe, so that during hydraulic pushing, it can push the entire inclinometer to move, so that the inclinometer 5 is extended and lowered to the bottom of the hole.

[0024] Reference Figure 2 and Figure 3 As shown, a through hole 22 is provided at the front end of the hydraulic pushing mechanism 2 in this embodiment. The through hole 22 is arranged close to the plug 7, and the through hole 22 is communicated with the plug 7, so as to block the waterway. Specifically, when the hydraulic pushing stops, the sealing plugging ball 8 loses hydraulic support, and the external waterway enters the plug 7 and the second liquid passage 21 along the through hole 22, so that the internal waterway is communicated with the external waterway, and the inclinometer can be taken out normally.

[0025] Reference Figure 2 As shown, in order to prevent the tool from being stuck when being lifted up and to closely cooperate with the core drill bit, a limiting protrusion 31 extending radially outward is provided on the surface of the drill stopper 3.

[0026] Reference Figure 3 As shown, the plug 7 is threadedly detachably connected to the interior of the hydraulic pushing mechanism 2, and a conical hole 71 adapted to the sealing ball 8 is provided in the plug 7; specifically, when hydraulic pushing is performed, the curved surface of the sealing ball 8 will be in close contact with the conical hole 71, so that the drilling fluid cannot pass through, so that all the liquid pressure acts on the hydraulic pushing mechanism 2 to achieve pushing.

[0027] It should be noted that, since the drill rod is magnetic, the drilling position cannot be read, and therefore the connecting rod 4 is made of non-magnetic material to avoid magnetic interference.

[0028] Reference Figure 2 As shown, a rope ring groove 12 is provided in the middle of the salvage head 1; the entire inclinometer can be pulled out by tying a rope at the rope ring groove 12, that is, a steel wire rope is connected to the head to facilitate the recovery of the instrument.

[0029] In order to facilitate assembly, disassembly and replacement, the connecting rod 4 is connected to the drill stopper 3 and the inclinometer 5 by threads, and the connecting rod 4, the drill stopper 3 and the inclinometer 5 are of equal diameter structure.

[0030] Inclination measurement method: When horizontal rope coring is used, after the inner tube is filled with cores, the inner tube is salvaged with a rope to remove the cores. When it is necessary to measure inclination while drilling, the same rope is used to hydraulically transport the inclinometer to the bottom of the hole to measure inclination while drilling. After the measurement is completed, the inclinometer is directly lifted to the ground with a rope to read the top angle and azimuth data.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Horizontal rope coring and drilling inclinometer, characterized by: It comprises a fishing head (1), a hydraulic pushing mechanism (2), a drill stopper (3), a connecting rod (4) and an inclinometer (5) which are sequentially connected and arranged along the axial direction; A first liquid passage (11) is provided in the middle of the fishing head (1), a second liquid passage (21) is provided in the hydraulic pushing mechanism (2), and the first liquid passage (11) is communicated with the second liquid passage (21); A plug (7) is installed in the hydraulic pushing mechanism (2), and a sealing plug ball (8) is embedded in the plug (7).

2. The horizontal wireline coring and inclinometer-while-drilling device according to claim 1, characterized in that: An annular seal (6) is installed outside the hydraulic propulsion mechanism (2), and the annular seal (6) is provided in at least two groups and is stacked along the axial direction of the hydraulic propulsion mechanism (2).

3. The horizontal wireline coring and inclinometer-while-drilling device according to claim 1, characterized in that: A through hole (22) is provided at the front end of the hydraulic pushing mechanism (2), the through hole (22) is arranged close to the plug (7), and the through hole (22) is communicated with the plug (7).

4. The horizontal wireline coring and inclinometer-while-drilling device according to claim 1, characterized in that: The surface of the drill stopper (3) is provided with a limiting protrusion (31) extending outward in the radial direction.

5. The horizontal wireline coring and inclinometer-while-drilling device according to claim 1, characterized in that: The plug (7) is detachably connected to the inside of the hydraulic pushing mechanism (2) by thread, and a conical hole (71) adapted to the sealing ball (8) is provided in the plug (7).

6. The horizontal wireline coring and inclinometer-while-drilling device according to claim 1, characterized in that: The connecting rod (4) is made of non-magnetic material.

7. The horizontal wireline coring and inclinometer-while-drilling device according to claim 1, characterized in that: A rope tie ring groove (12) is provided in the middle of the fishing head (1).

8. The horizontal wireline coring and inclinometer-while-drilling device according to claim 1, characterized in that: The connecting rod (4) is connected to the drill stopper (3) and the inclinometer (5) by threaded connection.

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