CN114922584A

CN114922584A - Drilling rod blowout prevention box

Info

Publication number: CN114922584A
Application number: CN202210540443.4A
Authority: CN
Inventors: 董子罕; 赵旭
Original assignee: China Coal Geological Administration Third Hydrogeological Team; Hydrogeology Bureau of China National Administration of Coal Geology
Current assignee: China Coal Geological Administration Third Hydrogeological Team; Hydrogeology Bureau of China National Administration of Coal Geology
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-08-19

Abstract

The invention belongs to the technical field of well drilling, and discloses a drill rod blowout prevention box which comprises two groove-shaped housings, wherein the two housings are arranged on two sides of a drill rod, the notches of the two housings are close to each other, the middle part of the upper end and the lower end of each housing, which is close to the notch side, is provided with a notch, the notch sides of the two housings are aligned and detachably connected to form a shell, the notches at the upper end and the lower end of the two housings are respectively aligned to form two through holes which are aligned up and down and communicated with the shell, the two through holes are used for the drill rod to pass through the interior of the shell, so that the two housings are enclosed to form a shell, the notches at the upper end and the lower end of the shell are respectively enclosed to form through holes for the drill rod to pass through up and down, wherein the two through holes need to be aligned up and down, so that the drill rod can vertically pass through the two through holes, when the drill rod is disassembled or installed, the disassembling ends of the two drill rods are positioned in the shell, thereby avoiding the chemical mud from splashing to the periphery when the drill rod is assembled and disassembled.

Description

Drilling rod blowout prevention box

Technical Field

The invention belongs to the field of drilling equipment, and particularly relates to a drill rod blowout prevention box.

Background

The drilling machine needs to be disassembled or additionally assembled with a drill rod at any time in the construction process, however, in the assembling or disassembling process, chemical slurry in a shaft is splashed frequently due to hydraulic injection pressure, once the chemical slurry is splashed, the environment is polluted, peripheral supporting equipment is corroded, and the physical health of workers is influenced.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide a drill rod blowout prevention box which is simple in structure and convenient to use.

In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a drilling rod prevents spouting box, includes the housing of two groove bodily forms, two the housing sets up in the both sides of drilling rod, and two the notch of housing is close to each other, every the middle part that housing upper end and lower extreme are close to the notch side all is equipped with the breach, two the notch side of housing aligns and can dismantle the connection in order to enclose and close and form a casing, and two the breach at both ends aligns respectively about the housing to form two align from top to bottom and with the through-hole that link up in the casing, two the through-hole is used for supplying the drilling rod to pass inside the casing.

The beneficial effects of the above technical scheme are that: so enclose through two shells and close a casing of formation, and enclose at casing upper end and lower extreme respectively through-hole breach and close the through-hole that forms the confession drilling rod and pass from top to bottom, wherein two through-holes need align from top to bottom, make the drilling rod can vertically pass two through-holes like this, when the drilling rod is dismantled or is installed, make the dismouting end of two drilling rods be located this casing, the drilling rod that is located the below is fixed, and the drilling rod that is located the top rotates to connecting these two drilling rods or unpack apart, dismouting end spun chemical mud is located the casing this moment, make chemical mud's influence range little like this, and chemical mud in the casing finally flows back to the well drilling in through-hole that is located the below.

Two among the above-mentioned technical scheme the mutual one side that is close to of housing rotates and connects, two the housing can rotate to the notch and keep away from each other in order to expand, or rotate to the notch and laminate each other in order to enclose and close and form the casing.

The beneficial effects of the above technical scheme are that: so make its simple structure, rotate two enclosers to notch side laminating and realize the butt joint of two enclosers promptly, make two enclosers more convenient when the butt joint like this, efficiency is higher.

Two among the above-mentioned technical scheme the housing corresponds the side and sets up a plurality of hinges with the rotation connection through upper and lower interval.

The beneficial effects of the above technical scheme are that: the rotary connection is convenient, and the stability is good.

In the technical scheme, locking pieces are arranged on the other sides of the two housings, and the two housings rotate to enable the notches to be mutually attached and the locking pieces lock the other sides of the two housings.

The beneficial effects of the above technical scheme are that: this prevents the two housings from being impacted to spread apart when the chemical slurry is sprayed.

In the technical scheme, the locking piece comprises a bolt and two pin pipes, wherein the two pin pipes are vertically arranged on two corresponding sides of the notches of the housing respectively, and when the housing rotates to the notches to be mutually attached, the two pin pipes are vertically aligned and inserted into the bolt from top to bottom to lock the housing.

The beneficial effects of the above technical scheme are that: the locking device is simple in structure, convenient to lock, good in stability and low in manufacturing cost.

In the technical scheme, the length of the pin tube is 1/4-1/2 of the height of the enclosure.

The beneficial effects of the above technical scheme are that: thus, the stability is good.

In the technical scheme, the upper end of the bolt is provided with the limiting ring, and when the bolt is inserted into the two pin tubes, the limiting ring is supported at the upper ends of the pin tubes above the bolt.

The beneficial effects of the above technical scheme are that: thus, the bolt can be prevented from falling off from the two pin pipes under the action of gravity.

In the technical scheme, the notch at the upper end of the housing is turned downwards to form a notch and a splash-proof groove corresponding to the notch of the housing and having the same orientation, and when the notches of the housing are attached, the splash-proof grooves are aligned and attached to each other to form a pipe shape.

The beneficial effects of the above technical scheme are that: this reduces or prevents the chemical slurry from being ejected upwardly through the upper through-hole.

In the technical scheme, the inner grooves of the splash-proof grooves gradually narrow from top to bottom, and the two splash-proof grooves are mutually attached to form a horn-shaped pipe with a smaller opening end facing downwards.

The beneficial effects of the above technical scheme are that: therefore, chemical slurry can be further prevented from being upwards sprayed out of the shell through the through hole positioned above the through hole.

In the technical scheme, the inner wall of the housing is coated with an anticorrosive coating.

The beneficial effects of the above technical scheme are that: thus, the service life of the housing can be prolonged.

Drawings

FIG. 1 is an elevation view of a drill pipe blowout preventer according to an embodiment of the present invention;

FIG. 2 is an elevation view of the housing in an embodiment of the present invention;

FIG. 3 is a schematic view of the locking element of an embodiment of the present invention;

FIG. 4 is another elevation view of a drill pipe blowout preventer according to embodiments of the present invention;

FIG. 5 is another elevation view of the housing in an embodiment of the present invention;

FIG. 6 is a partial view of the upper end of the housing in an embodiment of the present invention;

FIG. 7 is a side view of a drill pipe blowout preventer according to embodiments of the present invention;

FIG. 8 is a schematic view of the connection between the cover and the rubber pad according to the embodiment of the present invention;

fig. 9 is a schematic edge covering view of the rubber pad at the notch of the cover shell according to the embodiment of the invention.

In the figure: 1 cover shell, 11 notches, 111 splash-proof grooves, 12 hinges, 13 locking parts, 131 pin pipes, 132 pins, 1321 limiting rings, 14 rubber pads, 15 metal wires and 2 drill rods.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is provided for the purpose of facilitating and clearly illustrating embodiments of the present invention.

Example 1

As shown in fig. 1 and 2, the embodiment provides a drill pipe blowout preventer, which includes two casing cases 1 in a trough shape, the two casing cases 1 are disposed on two sides of a drill pipe 2, notches of the two casing cases 1 are close to each other, a notch 11 is disposed in a middle portion of an upper end and a lower end of each casing case 1 close to the notch, the notch sides of the two casing cases 1 are aligned and detachably connected to form a housing, the notches 11 at the upper end and the lower end of the two casing cases 1 are respectively aligned to form two through holes aligned up and down and communicated with the housing, the two through holes are used for allowing the drill pipe 2 to pass through the housing, so that the two casing cases form a housing, and the through holes at the upper end and the lower end of the housing are respectively surrounded to form through holes for the drill pipe to pass through up and down, wherein the two through holes need to be aligned up and down, so that the drill pipe can vertically pass through the two through holes, when the drilling rod is dismantled or installed, the dismouting end that makes two drilling rods is located this casing, and the drilling rod that is located the below is fixed, and the drilling rod that is located the top rotates to connect these two drilling rods or unpack apart, and the chemical mud of dismouting end spun this moment is located the casing, makes the influence range of chemical mud little like this, and the chemical mud in the casing finally flows back to the well drilling in through the through-hole that is located the below.

Among them, preferably, the height of the casing is preferably 0.5 to 1.5m inclusive, and more preferably, the height of the casing is 1 to 1.2m inclusive.

The housing may be a semi-cylindrical groove with a notch facing away from the arc surface side, and the two notches are disposed in the middle of the notch sides at the two ends, preferably, the notches are semicircular notches. It is further preferred that the diameter of the gap is within 20cm, provided that the drill rod is allowed to pass through.

The two housing shells can be directly formed by cutting the existing iron oil drum into two halves along the vertical surface where the diameter of the iron oil drum is located, and notches are formed in the middle of the opening sides of the upper end and the lower end of the two housing shells.

After the two housings are enclosed to form the shell, an iron wire or a rope can be directly bound on the periphery of the shell to bind the two housings together, and the two housings can be separated by cutting off the iron wire or the rope afterwards.

Preferably, two among the above-mentioned technical scheme one side that housing 1 is close to each other rotates to be connected, two housing 1 is rotatable to the notch and keeps away from each other in order to expand, or rotates to the notch and laminate each other in order to enclose and close formation the casing so make its simple structure, rotate two housings to the notch side laminating and realize the butt joint of two housings promptly, make two housings more convenient when the butt joint like this, efficiency is higher. Specifically, two among the above-mentioned technical scheme the corresponding side of housing 1 sets up a plurality of hinges 12 through upper and lower interval and connects in order to rotate, and it rotates to connect conveniently, and stability is good. Preferably, the number of the hinges is two, the two hinges are respectively connected with the two housings in a welding mode, and after the two housings rotate to be butted into a shell, a circle of iron wire or rope can be tied to the periphery of the shell to lock the two housings.

Preferably, in the technical scheme, the locking pieces 13 are arranged on the other sides of the two housings 1, the two housings 1 rotate to the notches to be mutually attached and are locked by the locking pieces 13, so that the two housings are prevented from being impacted to be unfolded when chemical slurry is sprayed out, the two housings can be conveniently locked after being rotated to be in butt joint by the aid of the locking pieces, cost is saved, and working efficiency can be improved.

As shown in fig. 3, in the above technical solution, the locking member 13 includes a pin 132 and two pin tubes 131, the two pin tubes 131 are respectively and vertically disposed at corresponding sides of the notches of the two housings 1, and when the two housings 1 rotate to the notches to be attached to each other, the two pin tubes 131 are aligned up and down and inserted into the pin 132 from top to bottom to lock the two housings 1.

In the technical scheme, the length of the pin pipe 131 is 1/4-1/2 of the height of the housing 1, so that the stability of the pin pipe is good.

In the above technical solution, the upper end of the plug 132 is provided with a limiting ring 1321, when the plug 132 is inserted into two pin tubes 131, the limiting ring 1321 is supported at the upper end of the pin tube 131, so that the plug can be prevented from falling off from the two pin tubes under the action of gravity, by providing the limiting ring on the plug, a connecting rope can be further provided on the limiting ring, one end of the connecting rope is tied with the limiting ring, and the other end of the connecting rope is tied on one of the pin tubes, so that the plug can be prevented from being separated from the housing and lost after being pulled out.

As shown in fig. 4-6, in the above technical solution, the notch 11 at the upper end of the housing 1 is turned down and forms a splash-proof slot 111 with a slot opening corresponding to the slot opening of the housing 1 in the same direction, when the two slot openings of the housing 1 are attached, the two splash-proof slots 111 are aligned and attached to each other to form a pipe shape, so that the chemical slurry can be reduced or prevented from being sprayed upwards through the through hole above. Wherein, the height of the splash guard groove is preferably 10-20 cm.

In the above technical scheme, the inner grooves of the splash proof slots 111 gradually narrow from top to bottom, and when the two splash proof slots 111 are mutually attached, a flared tube with a smaller opening end facing downwards is formed in a surrounding manner (the caliber of the lower end of the flared tube can meet the requirement that a drill rod passes through the flared tube), so that chemical slurry can be further prevented from being upwards sprayed out of the shell through the through hole positioned above the flared tube.

In the above technical scheme, the inner wall of the housing 1 is coated with an anticorrosive coating (which may be an epoxy resin coating), so that the service life of the housing can be prolonged, and preferably, the inner and outer surfaces of the housing are both coated with the anticorrosive coating.

Further preferably, as shown in fig. 7, the lower ends of the shells may be inclined downwards from the edge to the middle of the notch side, so that the lower ends of the two shells are flared with the smaller opening end facing downwards after the two shells are butted, thereby enabling the chemical slurry in the shell to be rapidly discharged through the through hole below.

As shown in fig. 8 and 9, in order to improve the sealing performance when the two housings are butted at the slot side, the edges of the slot side of the two housings can be subjected to edge covering treatment by using rubber pads 14 (the way of using rubber pads to cover edges belongs to the prior art, and is not described here in detail), which can also avoid a gap (a small amount of chemical slurry can be sprayed out through the gap when the gap exists) at the joint (i.e. the slot side) of the two housings after being butted, wherein the rubber pads can be arranged at the edge of the slot side of the housings as follows: a plurality of eyelets are provided at the notch side of the housing at uniform intervals in a ring shape, and then a wire 15 (iron wire) such as a sewing thread is passed through the plurality of eyelets in order in the forward and reverse directions to sew both sides of the rubber pad to the notch side of the housing.

This box is prevented spouting by drilling rod is in order to be convenient for deposit after having used up, and the chemical mud of outer surface washes totally in usable high-pressure squirt in with the housing, so neat and artistic, avoids the corruption of chemical mud later stage to the housing in addition, can also avoid chemical mud to drip on the way and enlarge the pollution range certainly transferring.

It should be noted that the above detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

Also, when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a single embodiment.

Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

For ease of description, spatially relative terms, such as "over", "above", "on", "upper surface", "over", and the like, may be used herein to describe one element or feature's spatial relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.

For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above" may include both an orientation of "above" and "below". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; the present invention may be readily implemented by those of ordinary skill in the art as illustrated in the accompanying drawings and described above; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a drilling rod prevents spouting box, its characterized in that includes housing (1) of two trough body shapes, two housing (1) sets up in the both sides of drilling rod (2), and two the notch of housing (1) is close to each other, every the middle part that housing (1) upper end and lower extreme are close to the notch side all is equipped with breach (11), two the notch side of housing (1) aligns and can dismantle the connection and close to form a casing in order to enclose, and two breach (11) at both ends align respectively about housing (1) to form two align from top to bottom and with the through-hole that link up in the casing, two the through-hole is used for supplying drilling rod (2) to pass inside the casing.

2. The drill pipe blowout preventer according to claim 1, wherein the two housings (1) are rotatably connected on sides close to each other, and the two housings (1) are rotatable to open the slots away from each other or to close the slots against each other to form the housing.

3. The drill pipe blowout preventer according to claim 2, wherein the two housings (1) are rotatably connected at their respective sides by a plurality of hinges (12) spaced up and down.

4. The drill rod blowout preventer according to claim 2, wherein locking pieces (13) are provided on the other sides of the two housings (1), and the two housings (1) are rotated until the notches engage with each other and the locking pieces (13) lock the other sides of the two housings (1).

5. The drill pipe blowout preventer according to claim 4, wherein the locking member (13) comprises a latch (132) and two pin pipes (131), the two pin pipes (131) are respectively vertically arranged on corresponding sides of the notches of the two housings (1), and when the two housings (1) are rotated until the notches are mutually engaged, the two pin pipes (131) are aligned up and down and inserted into the latch (132) from top to bottom to lock the two housings (1).

6. The drill pipe blowout preventer of claim 5, wherein the pin pipe (131) has a length of 1/4-1/2 of the height of the casing (1).

7. The drill pipe blowout preventer according to claim 5, wherein the upper end of the bolt (132) is provided with a retainer ring (1321), and when the bolt (132) is inserted into two pin pipes (131), the retainer ring (1321) is supported on the upper end of the pin pipe (131) above.

8. The drill pipe blowout preventer according to claim 1, wherein the upper end of the casing (1) is flanged downwards at the notch (11) and is provided with a splash groove (111) with a notch in the same direction as the notch of the casing (1), and when the notches of the two casings (1) are jointed, the two splash grooves (111) are aligned and jointed with each other to form a tubular shape.

9. The drill pipe blowout preventer of claim 8, wherein the inner groove of the splash guard (111) tapers from top to bottom, and the two splash guards (111) when engaged with each other enclose a flared tube with the smaller end of the tube open downward.

10. A drill rod blowout preventer according to any one of claims 1-9, wherein the inner wall of the casing (1) is coated with an anti-corrosion coating.