CN213392022U - High-speed deep well drill rod joint - Google Patents

Abstract

The utility model relates to a high-speed deep well tool joint belongs to deep well tool joint technical field, has the technological effect of many drilling rods of firm connection, and its technical scheme main points are: including male joint and the female joint of fixed drilling rod, the male joint with the female joint is at drilling rod both ends fixed thread connection respectively, be equipped with on the tip of male joint with female joint threaded connection's outstanding cone external screw thread ring to be equipped with annular circular bead on the periphery outward, be provided with the embedded cone internal thread basin with the corresponding threaded connection of cone external screw thread ring on the tip of female joint, just be equipped with the annular lug that corresponds the annular circular bead design on the outer periphery of female joint to be provided with fixing bolt and the buffer stop who adopts the hard rubber material preparation at the pelvic floor, can make the drilling rod keep firm connection under the high-speed running state in the deep well with buffer through inlaying mutually of circular bead and lug.

Description

High-speed deep well drill rod joint

Technical Field

The utility model belongs to the technical field of tool joint technique and specifically relates to a tool joint of high-speed deep well is related to.

Background

In the last century, along with the development of science and technology, the improvement of oil exploration technique and drilling equipment, the professional seeks the geological formation of storing oil on the earth very easily, also along with shallow oil and gas resources exploitation totally, the development of oil and gas storage develops towards deep stratum gradually, along with the increase of well depth, the contradiction of well skew and motor-speed is prominent day by day, steel pipe drilling rod is used in daily drilling, be used for connecting rig earth's surface equipment and be located drilling bottom drilling and grinding equipment or bottom hole device, when exploiting oil resources, because the length of single drilling rod receives the restriction of actual production condition, the event needs to connect up a plurality of drilling rods through the drill rod joint with the length requirement of the degree of depth to the drilling rod that satisfies the well drilling, also cause to the joint requirement degree reinforcing to connecting two drilling rods.

Common tool joint generally all produces according to the standard on the market, realizes connecting by the screw thread of pin joint and box, leans on the sealed face of the corresponding step face of internal thread end and external screw thread to carry out the close coupling in order to reach sealedly, and tool joint's of this kind of structure screw root pressure is concentrated seriously, very easily causes the screw thread fracture, and the practicality is poor, connects the inefficiency of drilling rod.

SUMMERY OF THE UTILITY MODEL

The not enough to prior art, the utility model provides a high-speed deep well tool joint has solved among the prior art that proposes in the above-mentioned technical background that tool joint connects comparatively simply, and the connection effect is extremely poor, can't satisfy the user demand of high-speed deep well, causes the problem of the waste of property and resource easily.

In order to achieve the above object, the utility model provides a following technical scheme:

high-speed deep well tool joint, including the male joint and the box of fixed drilling rod, the male joint with the box is respectively at drilling rod both ends department fixed thread connection, be equipped with on the tip of male joint with box threaded connection's outstanding cone external screw thread ring, be provided with on the tip of box with the corresponding threaded connection's of cone external screw thread ring embedded cone internal thread basin.

By adopting the technical scheme, the annular shoulder is arranged on the outer circumferential surface of the conical external thread ring of the male joint, the inner circumferential surface of the annular shoulder is in a step shape, the outer circumferential surface of the female joint is provided with the annular convex block designed corresponding to the annular shoulder, the outer circumferential surface and the end surface of the annular convex block are simultaneously embedded and connected with the annular shoulder when the conical internal thread basin of the female joint is in threaded connection with the conical external thread ring, so that two drill rods are not easy to rotate, the male joint is not easy to slide after being in threaded connection with the female joint, and the whole body is not easy to slide and loosen after the annular convex block is embedded and connected with the annular shoulder, thereby achieving the purpose of firm drill rod connection.

Further: and a fixed damping ring is arranged on the outer circumferential surface of the annular bump.

Through adopting above-mentioned technical scheme, after male joint and female joint threaded connection, annular lug inlays mutually with annular circular bead and is connected, when further spacing fixed prevents that the drilling rod from rotating, can radially provide the cushioning effect by the damping ring, elasticity and the flexible effective absorption vibration energy through the damping ring and slow down the friction of male joint and female joint for this drilling rod joint life extension.

Further: female joint's cone internal thread basin is fixed in by embedded device female joint terminal surface, embedded device is including setting up a plurality of fixing bolt in cone internal thread basin, fixing bolt axial sets up in cone internal thread basin installation in proper order to be equipped with fixation nut after with female joint threaded connection, fixation nut locates cone internal thread basin and keeps away from cone external screw thread ring one end.

By adopting the technical scheme, the friction in the working process of the drill rod is further limited by the fixing bolt, and the overall stability is greatly enhanced.

Further: the cone is provided with a placing hole for placing a fixing nut, the height of the placing hole is necessarily larger than that of the fixing nut, so that the fixing nut does not exceed the placing hole, and a closed rubber plug is embedded in the outer circumference of the placing hole.

Through adopting above-mentioned technical scheme, the setting in arrangement hole can be convenient for fixation nut's installation, and the rubber buffer can prevent debris such as oil from getting into the linkage unit to keep good leakproofness.

Further: the bottom of the cone internal thread basin is further provided with a buffer baffle made of hard rubber materials, a plurality of spring devices are arranged between the buffer baffle and the cone internal thread basin, the spring devices are fixed to two ends of the buffer baffle and the cone internal thread basin respectively, and the spring devices are in a compression state after two drill rod threads are connected.

Through adopting above-mentioned technical scheme, spring assembly receives the impact and can act on at the drilling rod during operation, when receiving inward impulse, transmits spring assembly on, spring assembly utilizes thrust to the buffer stop, and the buffer stop removes and provides buffer space in the axial and realizes axial shock attenuation, effective increase of service life.

Further: the damping device is characterized in that an annular protection plate is arranged on the annular shoulder, two fixing bolts are arranged on the annular protection plate, and the fixing bolts are abutted to the damping ring after being screwed down.

By adopting the technical scheme, the annular protection plate can reduce the abrasion degree of the joint of the male joint and the female joint and prolong the whole service life of the high-speed deep well drill rod joint.

To sum up, the beneficial effects of the utility model are that:

one, the utility model discloses a high-speed deep well tool joint is earlier by the threaded connection of male joint and female joint itself for two drilling rod fastening connections, on this basis, be equipped with annular lug and the annular circular bead is inlayed mutually and is connected and prevent the axial rotation, makes whole difficult production slip difficult pine leave, thereby reaches the purpose that high-speed operation also firmly connected in the deep well.

Secondly, according to the high-speed deep well drill rod joint, the spring device and the buffer baffle plate can enable the spring device to be impacted when a drill rod works, when the drill rod is impacted inwards, the impact is transmitted to the spring device, the spring device acts on the buffer baffle plate through thrust, the buffer baffle plate moves and provides buffer space in the axial direction to achieve axial shock absorption, and the service life is effectively prolonged.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a view of the internal thread structure of the present invention;

fig. 3 is a partial enlarged view of the end surface of the female joint of the present invention.

Detailed Description

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

The following embodiments are further described with reference to the drawings and examples, and the following examples are only used to clearly illustrate the technical solutions of the present invention, but not to limit the scope of the present invention.

Fig. 1-3 show that the utility model discloses a tool joint's of high-speed deep well embodiment, including male joint 1 and the female joint 2 of fixed drilling rod, male joint 1 and female joint 2 are respectively at drilling rod both ends department fixed thread connection, be equipped with the outstanding cone external screw thread ring 3 with female joint 2 threaded connection on male joint 1's the tip, be equipped with the embedded cone internal thread basin 4 with the corresponding threaded connection of cone external screw thread ring 3 on female joint 2's the tip, be equipped with annular circular bead 5 on the outer circumference of cone external screw thread ring 3 of male joint 1, be the echelonment setting on the inner circumference of annular circular bead 5, be equipped with the annular lug 6 that corresponds annular circular bead 5 design on female joint 2's the outer circumference of cone basin 4 and cone external screw thread ring 3 threaded connection time annular lug 6's outer periphery and terminal surface simultaneously with annular circular bead 5 embedded connection.

In this embodiment, when the drilling rod rotated at high speed in the deep well, can be so that difficult emergence is rotated between two drilling rods, and difficult emergence slip itself is difficult for after male joint 1 and female joint 2 threaded connection, after annular lug 6 inlays mutually with annular circular bead 5 and is connected, whole all is difficult for producing the difficult pine that slides and leaves to reach the purpose of firm drilling rod connection.

In this embodiment, female joint 2's cone internal thread basin 4 is fixed in female joint 2 terminal surface by embedded device 7, embedded device 7 is including setting up a plurality of fixing bolt 8 in cone internal thread basin 4, fixing bolt 8 axial sets up in cone internal thread basin 4 installation in proper order, and be equipped with fixation nut 9 with female joint 2 threaded connection back, fixation nut 9 locates cone internal thread basin 4 and keeps away from 3 one end of cone external screw thread ring, it is further spacing to use fixing bolt to do the friction in the drilling rod course of operation, and great reinforcing overall stability.

In this embodiment, be equipped with the hole 10 of placeeing fixed nut 9 on the cone internal thread basin 4, the height of hole 10 must be greater than the height of fixed nut 9 for fixed nut 9 does not surpass outside the hole 10 of placeeing, and interference embedding has the rubber buffer 11 that is used for sealing the hole of placeeing in the hole 10 of placeeing, and the setting of hole 10 of placeeing can be convenient for the installation of fixed nut 9, and rubber buffer 11 can prevent debris such as oil from getting into threaded connection unit, and keeps good leakproofness.

In this embodiment, the bottom of cone internal thread basin 4 still is provided with buffer stop 12 that adopts the preparation of stereoplasm rubber material, be provided with a plurality of spring assembly 13 between buffer stop 12 and the cone internal thread basin 4, spring assembly 13 is fixed with buffer stop 12 and cone internal thread basin 4 both ends respectively, spring assembly 13 is in compression state behind two drilling rod threaded connection, spring assembly 13 receives the impact and can act on at the drilling rod during operation, when receiving inward impulse, transmit on spring assembly 13, spring assembly 13 utilizes thrust to act on buffer stop 12, buffer stop 12 removes and provides the buffer space in the axial and realizes the axial shock attenuation, effectively increase of service life.

In this embodiment, the outer circumferential surface of the annular projection 6 is provided with a fixed damping ring 14, the annular shoulder 5 is provided with an annular protection plate 15, the annular protection plate 15 is provided with two fixing bolts 16, and the annular protection plate 15 can reduce the abrasion degree of the joint of the male joint 1 and the female joint 2 and prolong the overall service life of the high-speed deep well drill rod joint.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore desired that the present embodiments be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, without any reference thereto being construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (4)

1. High-speed deep well tool joint, its characterized in that, including male joint (1) and female joint (2) of fixed drilling rod, male joint (1) with female joint (2) are respectively at drilling rod both ends fixed thread connection, be equipped with on the tip of male joint (1) with female joint (2) threaded connection's outstanding cone external screw thread ring (3), be equipped with on the tip of female joint (2) with the corresponding threaded connection's of cone external screw thread ring (3) embedded cone internal thread basin (4), be equipped with annular circular bead (5) on the outer circumferential surface of cone external screw thread ring (3) of male joint (1), be the echelonment setting on the interior circular bead of annular circular bead (5), be equipped with on the outer circumferential surface of female joint and correspond annular convex block (6) of annular circular bead (5) design, annular convex block (6) when the internal screw thread basin (4) of female joint (2) and external screw thread ring (3) threaded connection ) The outer periphery and the terminal surface simultaneously and annular circular bead (5) inlay the connection mutually, the cone internal thread basin (4) of female joint (2) is fixed in by embedded device (7) female joint (2) terminal surface, embedded device (7) are including setting up a plurality of fixing bolt (8) in cone internal thread basin (4), fixing bolt (8) axial sets up in cone internal thread basin (4) installation in proper order to be equipped with fixation nut (9) with female joint (2) threaded connection back, cone external screw thread ring (3) one end is kept away from to fixation nut (9) in cone internal thread basin (4), be equipped with on cone internal thread basin (4) and place mounting hole (10) of fixation nut (9), the height of mounting hole (10) must be greater than the height of fixation nut (9) for fixation nut (9) do not surpass outside mounting hole (10), and a rubber plug (11) for sealing the placing hole is embedded in the placing hole (10) in an interference fit manner.

2. The high-speed deep well drill pipe joint according to claim 1, wherein a buffer baffle (12) made of hard rubber material is further arranged at the bottom of the conical internal thread basin (4), a plurality of spring devices (13) are arranged between the buffer baffle (12) and the conical internal thread basin (4), the spring devices (13) are respectively fixed with the buffer baffle (12) and two ends of the conical internal thread basin (4), and the spring devices (13) are in a compressed state after two drill pipes are connected in a threaded manner.

3. The high-speed deep well drill pipe joint according to claim 1, wherein the outer circumferential surface of the annular projection (6) is provided with a fixed damping ring (14).

4. The high-speed deep well drill pipe joint according to claim 1, wherein an annular protection plate (15) is arranged on the annular shoulder (5), two fixing bolts (16) are arranged on the annular protection plate (15), and the fixing bolts (16) are abutted to the damping ring (14) after being screwed down.

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