CN213330945U - Centralizer for exploration well in underground mine - Google Patents

Abstract

The utility model discloses a centralizer of a prospecting well for geological prospecting, which comprises a pair of hoops with the same structure, a plurality of centralizing teeth and a plurality of protecting teeth, wherein the axes of the hoops are overlapped and arranged up and down, the plurality of centralizing teeth are connected between the hoops, the protecting teeth are arranged at the lower side of the hoops, and a plurality of split connecting structures are arranged between the centralizing teeth and the hoops; the utility model relates to a petroleum equipment technical field, this centralizer for geological exploration logging well, the equipment is convenient, has the tooth of rightting that the ring was established, utilizes the recess and connects the multiple contact tube inner wall that sets up of member to carry out the rightting and the protection of side direction to the geological exploration instrument, and simultaneously, centralizer for geological exploration can carry out the components of a whole that can function independently installation with the hoop, can dismantle the tooth of righting and change when singly righting the tooth and damage, simple structure, the cost is lower.

Description

Centralizer for exploration well in underground mine

Technical Field

The utility model relates to a petroleum equipment technical field specifically is an prospecting logging centralizer.

Background

In the exploration process of the logging, the centralizer is an underground centralizing device used for an oil extraction pipe rod and used for avoiding the collision between the drill rod and a pipe wall, in the existing exploration process of the logging, the centralizer is also applied to equipment for protecting the underground, when the centralizer is used, the centralizer is mostly in a multi-tooth type and is distributed around the drill rod in an annular array, and when the centralizer is used, a plurality of teeth are integrally formed.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides an earth's ore deposit exploration well centralizer has solved current background technical problem.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a centralizer for a exploration well in geological exploration comprises a pair of hoops with the same structure, a plurality of centralizing teeth and a plurality of protecting teeth, wherein the axes of the hoops are overlapped and arranged up and down, the plurality of centralizing teeth are connected between the hoops, the protecting teeth are installed at the end parts of the hoops at the lower side of the hoops, and a plurality of split connecting structures are arranged between the centralizing teeth and the hoops;

the split connection structure comprises: the connecting rod comprises a plurality of grooves, aligning holes, jacks and connecting rods;

a plurality of grooves are respectively formed in opposite wall surfaces of the hoop, the end part of the centering tooth is of a structure matched with the shape of the groove, a centering hole is formed in the end part of the centering tooth, a jack is formed in the position, corresponding to the groove, of the hoop, the jack extends into the groove, and the connecting rod piece penetrates through the jack and is in threaded connection with the centering hole;

the plurality of righting teeth are all of bridge-shaped structures with convex centers;

the connecting rod piece is in a long screw structure and is in threaded connection with the aligning hole, and the plurality of protection teeth are cylindrical rods obliquely arranged on the hoop.

Preferably, the jack is a reducing cylindrical through groove, and the inner diameter of the upper side groove is larger than that of the lower side groove.

Preferably, the butt-joint pieces are of semicircular structures and are provided with through groove structures matched with the opposite tension rods.

Preferably, the cross section of the plurality of centralizing teeth is in a trapezoidal structure, the outward side of the trapezoidal structure is in a convex arc shape, and the inward side of the trapezoidal structure is in a concave arc shape.

Preferably, a pair of reinforcing hoops is arranged on two sides of the plurality of centering teeth and between the pair of hoops, and the pair of reinforcing hoops are respectively sleeved at two ends of the centering teeth.

Advantageous effects

The utility model provides a centralizer for geological exploration logging. The method has the following beneficial effects: this centralizer for geological exploration logging is simple structure, and the equipment is convenient, has the centering tooth that the ring was established, utilizes the multiple contact tube inner wall that sets up of recess and connecting rod spare to carry out the centering and the protection of side direction to the geological exploration instrument, and simultaneously, the centering tooth of centralizer for geological exploration can carry out the components of a whole that can function independently installation with the hoop, can dismantle the centering tooth and change when single centering tooth damages, simple structure, and the cost is lower.

Drawings

Fig. 1 is the utility model discloses a main view structure schematic diagram of prospecting well centralizer is surveyed in earth's mines.

Fig. 2 is the utility model discloses a structural sketch of overlooking of prospecting logging centralizer.

Fig. 3 is a schematic view of the local enlarged structure of the centralizer of the exploration survey well of fig. 1 according to the present invention.

In the figure: 1. a hoop; 2. righting the teeth; 3. protecting the teeth; 4. a groove; 5. aligning the holes; 6. a jack; 7. connecting rod pieces; 8. and (6) reinforcing the hoop.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

All the electrical components in the present application are connected with the power supply adapted to the electrical components through a wire, and an appropriate controller and an appropriate encoder should be selected according to actual conditions to meet control requirements, and specific connection and control sequences should be obtained.

Example (b): as can be seen from the attached figures 1-3 of the specification, the centralizer for the exploration well of the geological mine comprises a pair of hoops 1 with the same structure, a plurality of centralizing teeth 2 and a plurality of protecting teeth 3, wherein the axes of the hoops 1 are overlapped and arranged up and down, the plurality of centralizing teeth 2 are connected between the hoops 1, the protecting teeth 3 are arranged at the end parts of the hoops 1 at the lower side of the hoops, a plurality of split connecting structures are arranged between the centralizing teeth 2 and the hoops, in the specific implementation process, a plurality of centering teeth 2 and the hoop 1 are arranged in a split manner, a plurality of centering teeth 2 are arranged at a proper angle to form a centering device together, and the bottom end of the centralizer is provided with a cylindrical rod which is obliquely arranged on the hoop and is used for protecting the teeth 3, when the logging instrument is thrown, the bottom end of the logging instrument is protected from touching the pipe wall, and the righting teeth 2 are contacted with the inner wall of the pipe, so that the geological prospecting device is always positioned in the center of the inner wall of the pipe;

as can be seen from fig. 1 to 3 of the specification, the split connection structure includes: the connecting rod piece comprises a plurality of grooves 4, aligning holes 5, jacks 6 and connecting rod pieces 7, wherein the connecting relation and the position relation are as follows;

a plurality of grooves 4 are respectively formed in opposite wall surfaces of the pair of hoop 1, the end part of the centering tooth 2 is of a structure matched with the grooves 4 in shape, a centering hole 5 is formed in the end part of the centering tooth 2, a jack 6 is formed in the hoop 1 at a position corresponding to the grooves 4, the jack 6 extends into the grooves 4, and a connecting rod 7 penetrates through the jack 6 to be in threaded connection with the centering hole 5;

in the specific implementation process, grooves 4 are respectively formed in corresponding positions of a pair of hoops 1, two ends of a centering tooth 2 are respectively inserted into the grooves 4, a plurality of centering teeth 2 are of bridge-shaped structures with protruding centers, and then penetrate through jacks 6 through connecting rod pieces 7 to be connected with centering holes 5, the connecting rod pieces 7 are long screw rod structures and are in threaded connection with the centering holes 5, so that centering and fixing are achieved, the grooves 4 protect and fix the two ends of the centering teeth 2, and the strength of a threaded fixing structure is not affected when the centering teeth 2 and the hoops 1 form a complete centralizer;

in conclusion, the centralizer for the geological exploration logging is simple in structure and convenient to assemble, is provided with the annularly-arranged centralizing teeth 2, utilizes the multiple arrangement contact pipe inner walls of the grooves 4 and the connecting rod pieces 7 to centralize and protect a geological exploration instrument laterally, meanwhile, the centralizing teeth 2 of the centralizer for the geological exploration can be installed with the hoop 1 in a split mode, and the centralizing teeth 2 can be detached and replaced when the single centralizing teeth 2 are damaged, so that the centralizer for the geological exploration logging is simple in structure and low in cost.

Preferably, the docking member further comprises: a plurality of pairs of butt pieces and a plurality of pairs of tension rods;

a plurality of pairs of connecting pieces are respectively arranged on two sides of the plurality of righting teeth 2, the plurality of pairs of connecting pieces on the opposite sides of the two adjacent righting teeth 2 are mutually attached, and the plurality of pairs of mutually attached connecting pieces are connected through a plurality of pairs of tension rods.

Preferably, the plurality of protection teeth 3 are all cylindrical rods obliquely arranged on the hoop, and the protection teeth 3 are all obliquely inwards to form a closed structure, so that the protection force of the protection teeth 3 is improved.

As an optimal scheme, furthermore, the cross section of the plurality of righting teeth 2 is in a trapezoid structure, the outward side of the trapezoid structure is in a convex arc shape, the inward side of the trapezoid structure is in a concave arc shape, the friction force of the arc structure is small, and the structural strength is high.

Preferably, a pair of reinforcing hoops 8 is arranged on two sides of the plurality of the centering teeth 2 and between the pair of hoops, the pair of reinforcing hoops 8 are respectively sleeved on two ends of the centering teeth 2, and the connection stability between the plurality of the centering teeth 2 and the hoops 1 is further improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

In view of the above, it can be seen that the centralizer for geological exploration logging is simple in structure, convenient to assemble, has centering teeth that the ring was established, utilize the recess and connect the multiple contact tube inner wall that sets up of member to carry out the centering and protection of side direction to geological exploration instrument, simultaneously, centering teeth of centralizer for geological exploration can carry out the components of a whole that can function independently installation with the hoop, can dismantle and change centering teeth when single centering tooth damages, simple structure, the cost is lower, although the embodiment of the utility model has been shown and described, to the ordinary skilled person in the art, can understand that can carry out multiple changes, modification, replacement and variation to these embodiments under the circumstances that does not deviate from the principle and spirit of the utility model, the scope of the utility model is limited by appended claims and their equivalents.

Claims (5)

1. The centralizer for the exploration well in the geological exploration comprises a pair of hoops (1) with the same structure, a plurality of centralizing teeth (2) and a plurality of protecting teeth (3), and is characterized in that the axes of the hoops (1) are overlapped and arranged up and down, the plurality of centralizing teeth (2) are connected between the hoops (1), the protecting teeth (3) are arranged at the end parts of the hoops (1) at the lower side of the hoops, and a plurality of split connecting structures are arranged between the centralizing teeth (2) and the hoops (1);

the split connection structure comprises: a plurality of grooves (4), aligning holes (5), inserting holes (6) and connecting rods (7);

a plurality of grooves (4) are respectively formed in opposite wall surfaces of the hoop (1), the end part of the centering tooth (2) is of a structure matched with the grooves (4) in shape, a centering hole (5) is formed in the end part of the centering tooth (2), a jack (6) is formed in the position, corresponding to the groove (4), of the hoop (1), the jack (6) extends into the groove (4), and the connecting rod piece (7) penetrates through the jack (6) and is in threaded connection with the centering hole (5);

the plurality of righting teeth (2) are all of bridge-shaped structures with convex centers;

the connecting rod piece (7) is in a long screw structure and is in threaded connection with the aligning hole (5).

2. A centralizer for an earth exploration well according to claim 1, characterised in that said insertion hole (6) is a cylindrical through groove with variable diameter and the inner diameter of the upper groove (4) is greater than the inner diameter of the lower groove (4).

3. A centralizer for a borehole exploration well according to claim 1, characterised in that said guard teeth (3) are cylindrical bars mounted obliquely to the collar (1).

4. A centralizer for an earth-mining exploration wells according to claim 1, characterized in that the cross-section of a plurality of said centering teeth (2) is trapezoidal and the outward side of the trapezoidal structure is convex arc, and the inward side of the trapezoidal structure is concave arc.

5. A centralizer for a subterranean exploration well according to claim 1, wherein a pair of reinforcing hoops (8) are arranged on both sides of said plurality of centralizing teeth (2) and between said pair of hoops (1), and said pair of reinforcing hoops (8) are respectively sleeved on both ends of the centralizing teeth (2).

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