A separate structure of explosion-proof mud pulse probe and circulation sleeve for mining

Abstract

The present invention discloses a separate structure of a mine explosion-proof mud pulse probe and a circulation sleeve, which includes a separate probe pulser and a circulation sleeve, wherein the circulation sleeve is fixed inside a first drill rod, and the probe pulser is plugged into the inside of the circulation sleeve; a flow channel is formed between the valve head of the probe pulser and the valve port of the circulation sleeve, and a flow notch communicating with the flow channel is formed on the circulation sleeve, and the flow notch is used to guide the high-pressure fluid between the circulation sleeve and the first drill rod into the flow channel. The separate structure of the mine explosion-proof mud pulse probe and the circulation sleeve provided by the present application has a simple and reasonable structure, and the probe pulser and the circulation sleeve are independently designed, so one of the components can be quickly replaced, and the cost is greatly reduced. The segmented drill rod installation method can achieve the purpose of convenient and quick installation and fixing. It is worthy of large-scale promotion and use.

Description

Technical Field

[0001] The invention relates to the technical field of drilling equipment, in particular to a separation structure of a mining explosion-proof mud pulse probe and a circulation sleeve. Background Art

[0002] The explosion-proof mud pulse probe pressure pulse forming device for mining consists of a probe pulser and a circulation sleeve. The valve stem of the probe pulser extends out from the valve port fixed to the probe pulser to form a narrow flow channel, thereby forming a pressure build-up in the closed space of the drill pipe. The pressure transmitter located at the orifice detects the pressure change. Since the valve stem and the valve port are flushed by high-pressure mud or water for a long time, they are prone to wear and affect signal transmission, and need to be replaced continuously. In the prior art, the probe pulser and the circulation sleeve are designed as one body. When replacing, the probe pulser and the circulation sleeve need to be replaced together, which increases the replacement cost and the replacement process is cumbersome. Summary of the invention

[0003] The invention provides a separation structure of a mining explosion-proof mud pulse probe and a circulation sleeve.

[0004] The present invention provides the following scheme:

[0005] A separate structure of a mining explosion-proof mud pulse probe and a circulation sleeve, comprising independent probe pulsers and circulation sleeves, wherein the circulation sleeve is fixed to the inside of a first drill rod, and the probe pulser is plugged into the inside of the circulation sleeve; a flow channel is formed between the valve head of the probe pulser and the valve port of the circulation sleeve, and a flow notch communicating with the flow channel is formed on the circulation sleeve, and the flow notch is used to guide the high-pressure fluid between the circulation sleeve and the first drill rod into the flow channel.

[0006] Preferably, a fixed wing portion is formed on the circulation sleeve, and the circulation sleeve is fixedly connected to the first drill rod through the fixed wing portion.

[0007] Preferably, the fixed wing portion includes a plurality of fixed wings independently and evenly arranged along the circumference of the circulation sleeve.

[0008] Preferably: a valve port sealing portion is formed on the circulation sleeve, and a plurality of sealing rings arranged along the circumference thereof are formed on the valve port sealing portion.

[0009] Preferably, the sealing ring includes at least two paths axially separated from each other along the valve port sealing portion.

[0010] Preferably: the outward end surface of the fixed wing is flush with an end surface of the circulation sleeve away from the valve port sealing portion, and the outward end surface of the fixed wing is flush with the bottom of the internal thread of the first drill rod; the first drill rod is connected to the second drill rod, and the front end surface of the second drill rod forming the external thread abuts against the outward end surface of the fixed wing.

[0011] Preferably, the probe pulser extends to the interior of the second drill pipe.

[0012] Preferably, the first drill rod and the second drill rod are both non-magnetic drill rods.

[0013] Preferably, the flow-through gap includes a plurality of gaps arranged along the circumference of the circulation sleeve.

[0014] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0015] Through the present invention, a separation structure of a mining explosion-proof mud pulse probe and a circulation sleeve can be realized. In one implementation mode, the structure can include a separate probe pulser and a circulation sleeve, wherein the circulation sleeve is fixed inside the first drill rod, and the probe pulser is plugged into the inside of the circulation sleeve; a flow channel is formed between the valve head of the probe pulser and the valve port of the circulation sleeve, and a flow gap communicating with the flow channel is formed on the circulation sleeve, and the flow gap is used to guide the high-pressure fluid between the circulation sleeve and the first drill rod into the flow channel. The separation structure of the mining mud pulse probe and the circulation sleeve provided in the present application has a simple and reasonable structure, is easy to install and use, and the probe pulser and the circulation sleeve are independently designed, so one of the components can be quickly replaced, and the cost is greatly reduced. The segmented drill rod installation method can achieve the purpose of convenient and quick installation and fixing. It is worthy of large-scale promotion and use.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a separate structure of a mining explosion-proof mud pulse probe and a circulation sleeve provided by an embodiment of the present invention;

[0019] Figure 2is a schematic diagram of the structure of a probe tube pulser provided by an embodiment of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of a circulation sleeve provided in an embodiment of the present invention.

[0021] In the figure: a probe pulser 1, a valve head 11, a circulation sleeve 2, a flow gap 21, a fixed wing 22, a valve port sealing portion 23, a first drill rod 3, a flow channel 4, and a sealing ring 5. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 belong to the scope of protection of the present invention.

[0023] Example

[0024] See also Figure 1 , Figure 2 , Figure 3 , is a separation structure of a mining explosion-proof mud pulse probe and a circulation sleeve provided by an embodiment of the present invention, such as Figure 1 , Figure 2 , Figure 3 As shown, the structure includes a separate probe tube pulser 1 and a circulation sleeve 2, wherein the circulation sleeve 2 is fixed inside the first drill rod 3, and the probe tube pulser 1 is inserted into the circulation sleeve 2; a flow channel 4 is formed between the valve head 11 of the probe tube pulser 1 and the valve port of the circulation sleeve 2, and a flow notch 21 communicating with the flow channel 4 is formed on the circulation sleeve 2, and the flow notch 21 is used to guide the high-pressure fluid between the circulation sleeve 2 and the first drill rod 3 into the flow channel 4.

[0025] Furthermore, in order to achieve a fixed connection between the circulation sleeve and the first drill rod, a fixed wing portion 22 is formed on the circulation sleeve 2, and the circulation sleeve 2 is fixedly connected to the first drill rod 3 through the fixed wing portion 22. Specifically, the fixed wing portion 22 includes a plurality of fixed wings independently and evenly arranged along the circumference of the circulation sleeve 2. In practical applications, the number of the fixed wings can be selected to be two or three. In order to ensure that the circumferential outer side of the front end of the circulation sleeve can maintain a seal with the first drill rod, a valve port sealing portion 23 is formed on the circulation sleeve, and a plurality of sealing rings 5 ​​arranged along the circumference thereof are formed on the valve port sealing portion 23. Specifically, the sealing ring 5 includes at least two axially separated from each other along the valve port sealing portion 23.

[0026] In order to facilitate installation and fixation, the solution provided in the present application can be divided into two sections, front and back, for installation of the probe tube. Specifically, the outward end surface of the fixed wing 22 is flush with the end surface of the circulation sleeve 2 away from the valve port sealing portion 23, and the outward end surface of the fixed wing 22 is flush with the bottom of the internal thread of the first drill rod 3; the first drill rod 3 is connected to the second drill rod (not shown in the figure), and the front end surface of the second drill rod forming the external thread abuts against the outward end surface of the fixed wing 22. The probe tube pulser 1 extends to the inside of the second drill rod. Such a setting can ensure that after the first drill rod is separated from the second drill rod, the circulation sleeve can be installed smoothly and the positioning can be ensured accurately, and it is also easier to plug the probe tube pulser into the circulation sleeve. In actual applications, both the first drill rod and the second drill rod are non-magnetic drill rods. In order to ensure that the high-pressure fluid entering the flow channel can be evenly distributed, the flow gap includes a plurality of gaps arranged circumferentially along the circulation sleeve. The high-pressure fluid can be high-pressure mud or high-pressure water.

[0027] In summary, the separation structure of the explosion-proof mud pulse probe and circulation sleeve provided by the present application is simple and reasonable in structure, easy to install and use, and the probe pulser and the circulation sleeve are designed independently, so one of the components can be quickly replaced, and the cost is greatly reduced. The segmented drill pipe installation method can achieve the purpose of convenient and fast installation and fixing. It is worthy of large-scale promotion and use.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A separate structure of a mining explosion-proof mud pulse probe and a circulation sleeve, characterized in that: The invention comprises a probe tube pulser and a circulation sleeve, respectively, wherein the circulation sleeve is fixed inside the first drill rod, and the probe tube pulser is inserted inside the circulation sleeve; a flow channel is formed between the valve head of the probe tube pulser and the valve port of the circulation sleeve, and a flow notch communicating with the flow channel is formed on the circulation sleeve, and the flow notch is used to guide the high-pressure fluid between the circulation sleeve and the first drill rod into the flow channel; a fixed wing is formed on the circulation sleeve, and the circulation sleeve is fixedly connected to the first drill rod through the fixed wing; the outward end face of the fixed wing is flush with an end face of the circulation sleeve away from the valve port sealing part, and the outward end face of the fixed wing is flush with the bottom of the internal thread of the first drill rod; the first drill rod is connected to the second drill rod, and the front end face of the second drill rod formed with an external thread abuts against the outward end face of the fixed wing; the probe tube pulser extends to the inside of the second drill rod; the first drill rod and the second drill rod are both non-magnetic drill rods.

2. The separation structure of the explosion-proof mud pulse probe and the circulation sleeve for mining according to claim 1 is characterized in that: The fixed wing portion includes a plurality of fixed wings which are independently and evenly arranged along the circumference of the circulation sleeve.

3. The separation structure of the explosion-proof mud pulse probe and the circulation sleeve for mining according to claim 1 is characterized in that: A valve port sealing portion is formed on the circulation sleeve, and a plurality of sealing rings arranged along the circumference of the valve port sealing portion are formed on the valve port sealing portion.

4. The separation structure of the explosion-proof mud pulse probe and the circulation sleeve for mining according to claim 3 is characterized in that: The sealing ring includes at least two paths separated from each other along the axial direction of the valve port sealing portion.

5. The separation structure of the explosion-proof mud pulse probe and the circulation sleeve for mining use according to claim 1 is characterized in that: The flow-through gaps include a plurality of gaps arranged along the circumference of the circulation sleeve.

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