CN204511320U - A kind of science deep-well, ultradeep well probing drilling rod - Google Patents

Abstract

The utility model relates to a drill pipe for drilling scientific deep wells and ultra-deep wells, which belongs to the technical field of drilling into soil layers or rocks. The drill pipe used for scientific deep well and ultra-deep well drilling includes a drill pipe body, a female joint and a male joint; The externally thickened pipe wall structure of the belt is formed by assembling the female joint at one end of the drill pipe body and the male joint at the other end to form a drill pipe. The internal channel of the drill pipe is a cylindrical hole structure with equal cross-section. The scientific deep well and ultra-deep well and the drill pipe for drilling described in the utility model not only improve the drilling efficiency, prolong the life of the drill bit, reduce the labor intensity of the operator, but also reduce the probability of accidents in the hole.

Description

A drill pipe for scientific deep well and ultra-deep well drilling

technical field

The utility model relates to a drill pipe for drilling scientific deep wells and ultra-deep wells, in particular to a drill pipe for scientific deep wells and ultra-deep wells suitable for the drilling process of rope coring and lifting drilling, which belongs to the drilling technology of soil layers or rocks field.

Background technique

With the continuous expansion of the spatial scope of earth science research, scientific deep well and ultra-deep well engineering have become important methods for deep geology research. For scientific deep well and ultra-deep well drilling projects, wireline coring drilling technology (wireline coring refers to that during the drilling process, when the core is filled with the core tube, it is not necessary to lift the core, but to use the drill pipe The inner hole is a channel, with the help of ropes and special fishing tools, the core drilling method stored in the core tube is lifted out of the hole during the drilling process) has the advantages of high drilling efficiency, prolonging the life of the drill bit, and reducing the labor of the operator Therefore, wireline coring drilling technology has become one of the main technical methods for core drilling in deep geological prospecting.

As shown in accompanying drawing 1, the existing drill pipe for scientific deep well and ultra-deep well drilling includes a drill pipe body 1, a female joint 2 and a male joint 3, wherein the drill pipe body 1 is made of aluminum alloy, and the female joint 2 and The male joints 3 are all made of steel. In order to ensure the strength of the threaded connection between the two ends of the drill pipe body 1 and the female joint 2 and the male joint 3, the pipe walls at both ends of the drill pipe body 1 are thickened. 4 The diameter of the middle part is larger than the inner diameter of the female joint 2 and the male joint 3, so that after multiple drill pipes are connected, the drill pipe inner cavity channel 4 has a non-equal cross-section structure. The adoption of drill core drilling technology not only affects the overall drilling efficiency and increases the labor intensity of the operator, but also increases the probability of accidents in the hole due to the problem of drill string suction.

Utility model content

The purpose of this utility model is to aim at the drawbacks of the prior art, to provide a drilling machine that can meet the technical requirements of wireline coring drilling and lifting core drilling, and has the advantages of high comprehensive drilling efficiency, low labor intensity of the operator and low probability of accidents in the hole. Drill pipes for scientific deep well and ultra-deep well drilling.

Problem described in the utility model is solved with following technical scheme:

A drill pipe for scientific deep well and ultra-deep well drilling, including a drill pipe body, a female joint and a male joint; The externally thickened pipe wall structure of the transition zone is formed by assembling the female joint at one end of the drill pipe body and the male joint at the other end to form a drill pipe, and the internal channel of the drill pipe is a cylindrical hole structure with equal cross-section .

The above-mentioned drill pipe for scientific deep well and ultra-deep well drilling, the two ends of the drill pipe body are provided with external threads of the drill pipe body that cooperate with the female joint and the male joint.

The above-mentioned drill pipe for scientific deep well and ultra-deep well drilling, one end of the female joint is provided with a first threaded hole cooperating with the external thread of the drill pipe, and the other end is provided with a second threaded hole cooperating with the male joint. Between the first threaded hole and the second threaded hole is an inner cylindrical hole of the female joint with the same size as the channel in the drill pipe body.

The above-mentioned drill pipe for scientific deep well and ultra-deep well drilling, one end of the male joint is a conical pin structure, and the male joint is provided with a central hole penetrating along the direction of the central axis, and one end of the central hole is a third part matched with the drill pipe body. A threaded hole, the other end of which is an inner cylindrical hole of the male joint with the same size as the cylindrical hole in the drill rod body; an outer thread of the male joint matching the inner thread of the second threaded hole is provided on the tapered surface of the male joint.

For the above-mentioned drill pipe for scientific deep well and ultra-deep well drilling, the taper of the second threaded hole and the male thread of the male joint is 1:16.

The above-mentioned drill pipe for scientific deep well and ultra-deep well drilling, the drill pipe body is made of aluminum alloy, and the female joint and male joint are both made of steel material.

The drill pipe for scientific deep well and ultra-deep well drilling described in the utility model optimizes the existing drill pipe structure. The inner cavity of the drill pipe body is designed as a cylindrical hole structure with equal cross-section. It is designed as a cylindrical hole structure with the same size as the cylindrical hole in the drill pipe body. Therefore, after connecting multiple drill pipes, a smooth and smooth internal channel of the drill pipe with equal cross-section is formed. Core drilling process for coring operations. In the utility model, the two ends of the drill pipe body are designed as an externally thickened pipe wall structure with a transition zone, which increases the strength of the connecting parts of the drill pipe body, the female joint and the male joint, and effectively avoids the failure problem of the drill pipe body after wear ; The utility model optimizes the taper of the second threaded hole of the female joint and the male thread of the male joint from 1:5 to 1:16, which improves the structural strength of the threaded connection. In a word, the drill pipe for scientific deep well and ultra-deep well drilling described in the utility model not only improves the drilling efficiency, prolongs the life of the drill bit, reduces the labor intensity of the operator, but also reduces the probability of accidents in the hole.

Description of drawings

Fig. 1 is the schematic diagram of the cross-sectional structure of the drill pipe used for the drilling of existing scientific deep wells and ultra-deep wells;

Fig. 2 is the scientific deep well described in the utility model, the drill pipe cross-sectional structural representation of ultra-deep well drilling;

Fig. 3 is the schematic diagram of the cross-sectional structure of the female joint in the drill pipe for scientific deep well and ultra-deep well drilling described in the utility model;

Fig. 4 is the schematic diagram of the cross-sectional structure of the drill pipe body in the drill pipe for scientific deep well and ultra-deep well drilling described in the utility model;

Fig. 5 is a schematic cross-sectional structure diagram of the male joint of the drill pipe used for geoscience deep well and ultra-deep well drilling according to the utility model.

The list of labels in the figure is: 1. Drill pipe body, 1-1, internal passage of drill pipe, 1-2, external thread of drill pipe, 2, female joint, 2-1, first threaded hole, 2-2 , the second threaded hole, 2-3, the inner cylindrical hole of the female joint, 3, the male joint, 3-1, the third threaded hole, 3-2, the outer thread of the male joint, 3-3, the inner cylindrical hole of the male joint, 4 , The inner channel of the drill pipe.

Detailed ways

The scientific deep well described in the utility model, the drilling rod for ultra-deep well drilling will be further described below in conjunction with the accompanying drawings.

Referring to Fig. 2 and Fig. 4, the drill pipe for scientific deep and ultra-deep well drilling described in the utility model includes a drill pipe body 1, a female joint 2 and a male joint 3, and the drill pipe body 1 is provided with a drill pipe penetrating along the direction of the central axis. The channel 1-1 in the rod body, the two ends of the drill rod body 1 are externally thickened pipe wall structures with a transition zone, the female joint 2 is assembled at one end of the drill rod body 1, and the male joint 3 is assembled at the other end Finally, a drill rod is formed, and the inner channel 4 of the drill rod is a cylindrical hole structure with equal cross-section.

Referring to Fig. 4, in the drill pipe for scientific deep well and ultra-deep well drilling described in the present utility model, the two ends of the drill pipe body 1 are provided with external threads 1 of the drill pipe that cooperate with the female joint 2 and the male joint 3 -2.

Referring to Fig. 3, in the drill pipe for scientific deep well and ultra-deep well drilling described in the present invention, one end of the female joint 2 is provided with a first threaded hole 2-1 cooperating with the external thread 1-2 of the drill pipe. , the other end is provided with a second threaded hole 2-2 matched with the male joint 3, the second threaded hole 2-2 adopts an internal threaded hole structure with a taper of 1:16, and the first threaded hole 2-1 Between the second threaded hole 2-2, a female joint inner cylindrical hole 2-3 having the same size as the inner cylindrical hole in the drill rod body is arranged.

Referring to Fig. 5, in the drill pipe for scientific deep well and ultra-deep well drilling described in the present invention, the male joint 3 is provided with a central hole penetrating along the direction of the central axis, and one end of the central hole is connected to the drill pipe body. The matched third threaded hole 3-1, the other end is the inner cylindrical hole 3-3 of the male joint with the same size as the cylindrical hole in the drill pipe body; one end of the male joint is a conical pin structure, and there is a The external thread 3-2 of the male joint matching the internal thread of the second threaded hole 2-2 has a taper of 1:16.

Referring to Fig. 2 to Fig. 5, the drill pipe for scientific deep well and ultra-deep well drilling described in the utility model optimizes the existing drill pipe structure. The inner cavity of the joint and the male joint is designed as an inner cylindrical hole structure with the same size as the channel 1-1 in the drill pipe body. Therefore, after connecting multiple drill pipes, a smooth inner cavity 4 of the drill pipe is formed, which can be removed by rope. Core drilling process for coring operations. The two ends of the drill pipe body 1 of the drill pipe for scientific deep well and ultra-deep well drilling described in the utility model are designed as an externally thickened pipe wall structure with a transition zone, and the drill pipe body 1, the female joint 2 and the male joint 3 are added. The strength of the connection part effectively avoids the failure problem of the drill pipe body 1 after wear; the drill pipe for scientific deep well and ultra-deep well drilling described in the utility model has the taper of the second threaded hole 2-2 of the female joint and the taper surface of the male joint It is optimized from 1:5 to 1:16, which increases the structural strength of the threaded connection.

Claims (6)

1. A drill pipe for scientific deep well and ultra-deep well drilling, comprising a drill pipe body (1), a female joint (2) and a male joint (3), characterized in that the drill pipe body (1) is provided with The internal channel (1-1) of the drill pipe body that runs through the axial direction. The two ends of the drill pipe body (1) have an outer thickened pipe wall structure with a transition zone. A drill pipe is formed after the female joint (2) and the male joint (3) are assembled at the other end, and the inner cavity passage (4) of the drill pipe is a cylindrical hole structure with equal cross-section. 2. The drill pipe for scientific deep well and ultra-deep well drilling according to claim 1, characterized in that, the two ends of the drill pipe body (1) are equipped with the female joint (2) and the male joint (3). external threads of the drill pipe (1-2). 3. The drill pipe for scientific deep well and ultra-deep well drilling according to claim 2, characterized in that, one end of the female joint (2) is provided with a first threaded hole (2-1), the other end is provided with a second threaded hole (2-2) matching with the male joint (3), the first threaded hole (2-1) and the second threaded hole (2 -2) is an inner cylindrical hole (2-3) of the female joint with the same size as the channel (1-1) in the drill rod body. 4. The drill pipe for scientific deep well and ultra-deep well drilling according to claim 3, characterized in that one end of the male joint (3) is a conical pin structure, and the male joint (3) is provided with a penetrating pin along the direction of the central axis. One end of the center hole is the third threaded hole (3-1) matched with the drill pipe body, and the other end is the inner cylindrical hole of the male joint with the same size as the cylindrical hole (1-1) in the drill pipe body ( 3-3); an external thread (3-2) of the male joint matching the internal thread of the second threaded hole (2-2) is provided on the tapered surface of the taper pin of the male joint. 5. The drill pipe for scientific deep well and ultra-deep well drilling according to claim 4, characterized in that the taper of the second threaded hole (2-2) of the female joint and the external thread of the male joint is 1:16. 6. The drill pipe for scientific deep well and ultra-deep well drilling according to any one of claims 1 to 5, characterized in that, the drill pipe body (1) is made of aluminum alloy, and the female joint (2) and The male joints (3) are all made of steel.