CN215093356U

CN215093356U - Circulation head dismounting device

Info

Publication number: CN215093356U
Application number: CN202121544740.3U
Authority: CN
Inventors: 王立新; 葛嵩; 韩华栋; 范远洪; 宋文江; 谢思宇
Original assignee: CNOOC China Ltd Zhanjiang Branch; CNOOC China Ltd Hainan Branch
Current assignee: CNOOC China Ltd Zhanjiang Branch; CNOOC China Ltd Hainan Branch
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2021-12-10
Anticipated expiration: 2031-07-08

Abstract

A device for disassembling and assembling a circulating head comprises a first supporting ring which can be sleeved on the circulating head, wherein a fastening piece used for fixing the circulating head in the first supporting ring is arranged on the ring wall of the first supporting ring, and at least two handles are arranged on the outer side wall of the first supporting ring; the support device is characterized by further comprising a second support ring, wherein the second support ring is coaxial with the first support ring and is fixedly connected with the first support ring through at least two connecting strips. The utility model discloses can fully fix the great article such as circulation head of weight to steadily lift circulation head in place fast, and can guide circulation head to the coupling box of receiving drilling rod or oil pipe and detain.

Description

Circulation head dismounting device

Technical Field

The utility model relates to a first dismouting technical field of circulation, more specifically relates to a first dismouting device of circulation.

Background

If overflow occurs during offshore workover operation, a circulation head needs to be connected to an oil pipe or a drill rod in a rush mode at the first time, a circulation channel can be established for circulating well killing after the circulation head is connected, and if circulation cannot be installed in time, well kick and even blowout can occur possibly, so that casualties caused by damage to a platform are avoided, and therefore the connection of the circulation head is a key step for avoiding accidents. The circulation head comprises a circulation head body, and thread sections are arranged at two ends of the circulation head body. The drilling rod includes the drilling rod body and is located drilling rod top and circulation head screw thread fit's coupling box, and the external diameter of coupling box is greater than the external diameter of drilling rod body, and the external diameter of coupling box is close or equal with the external diameter of circulation head. The oil pipe structure is similar to a drill rod and also comprises an oil pipe body and a coupling box matched with the circulation head thread section. At present, the material of a circulating head body used on site is carbon steel, the weight is generally more than 30kg, the circulating head body can be lifted to an oil pipe or a drill rod connecting buckle by manual operation of a plurality of people in site operation, and the lifting is difficult to realize under emergency conditions. And the outer wall of the circulating head body is smooth and has no hand grip, so that the circulating head is easy to slip off and hurt people. If the drill floor is in an emergency, the task of robbing the drill floor is difficult to be efficiently and safely completed in a limited time.

Chinese patent publication No. CN212794796U discloses a device for detaching an oil seal cup of a transformer, which includes: fixed helicoid, operating handle, square slip connecting rod, adjusting screw, fixing bolt and adjusting bolt, wherein, the both ends symmetry of fixed helicoid is equipped with two operating handle, operating handle is embedded to have square slip connecting rod, the inside adjusting screw that is equipped with of square slip connecting rod, the fixed fixing bolt that is equipped with of one end of adjusting screw, adjusting screw's the other end is equipped with adjusting bolt.

However, the above scheme is only suitable for mounting small articles, only two handles and two fixed helicoids are not enough to stably lift the high-weight circulation head to the joint of the oil pipe or the drill pipe for buckling, and the fixed helicoids are arranged at the handles and are inconvenient to operate, so that the method is not suitable for emergency and quick operation sites of workover operations.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome prior art and be not applicable to the not enough of workover environment, provide a first dismouting device circulates, the utility model discloses can fully fix the great article such as the first of circulation of weight to steadily lift the first circulation in place fast, and can guide the first coupling that docks drilling rod or oil pipe of circulation and detain.

The purpose of the utility model can be achieved by adopting the following technical scheme:

a device for disassembling and assembling a circulating head comprises a first supporting ring which can be sleeved on the circulating head, wherein a fastening piece used for fixing the circulating head in the first supporting ring is arranged on the ring wall of the first supporting ring, and at least two handles are arranged on the outer side wall of the first supporting ring; the support device is characterized by further comprising a second support ring, wherein the second support ring is coaxial with the first support ring and is fixedly connected with the first support ring through at least two connecting strips. The first supporting ring is sleeved on the outer wall of the circulating head body, and then the circulating head is fixed in the first supporting ring by the fastening piece. After the device is fixed, the whole device can be stably lifted through the handle, then the circulating head is moved onto the drill rod and is butted on the coupling female buckle, the device is rotated through the handle, the circulating head fixed on the first supporting ring can be conveniently screwed into the coupling female buckle, and the overflow is blocked to carry out the next well killing operation. The second support ring can be used for being sleeved on a drill rod to assist the circulation head to be butted on a coupling of the drill rod or an oil pipe, and can also be sleeved on the circulation head to further fix the circulation head. The fastener can all not influence the realization of this scheme by bolt, double-screw bolt, screw etc. and bolt etc. can cooperate the packing ring to use simultaneously and make fixed effect better.

Furthermore, the second support ring comprises two semi-rings, one end of each of the two semi-rings is hinged, the other end of each of the two semi-rings is detachably connected, the connecting strip is arranged on one of the semi-rings, and the distance between the first support ring (1) and the second support ring (2) is greater than the axial length of the thread section of the circulation head. The first supporting ring is sleeved on the circulating head and then the circulating head is fixed through a fastener. The second support ring is used for being sleeved on the drill rod. When the connecting rod is sleeved, the two half rings are opened, the half ring connected with the connecting strip is close to the side wall of the drill rod, the bottom of the circulating head fixed by the first supporting ring is also close to the top of the coupling of the drill rod, and then the other half ring is closed and the connecting part is fixed. Therefore, the first support ring is sleeved on the circulation head, the second support ring is sleeved on the drill rod, the circulation head can be conveniently butted with a coupling of the drill rod due to the guiding of the connecting strip, and the circulation head is not easy to twist askew when the coupling is screwed into the circulation head. The two half rings are buckled on the drill rod and are sleeved from the top of the drill rod compared with a whole ring, so that the time for aligning the ring with the drill rod is saved, the height for lifting the heavy circulation head is reduced, and the operation is easier.

Further, the distance between the first support ring and the second support ring is larger than the sum of the axial length of the coupling box and the axial length of the thread section of the circulation head. Therefore, the first support ring is used for fixing the circulation head, the two half rings of the second support ring are buckled on the drill rod body or the oil pipe body, and then the circulation head is butted on the coupling female buckle under the guidance of the circulation head dismounting device and is screwed. Like this, because drilling rod body or oil pipe body diameter ratio are littleer than the circulation head body, easier lock joint, simultaneously the length of connecting strip is bigger, and this device just can be better the displacement of injecing the circulation head, and the circulation head is more stable accurate with the coupling box when screwing up.

Furthermore, a fastening piece is also arranged on the annular wall of the second support ring, and the fastening piece comprises a plurality of jackscrews and screw holes matched with the jackscrews. When the first supporting ring is sleeved on the circulating pipe head, the jackscrew is screwed into the screw hole and abuts against the outer wall of the circulating head, and the circulating head can be fixed in the first supporting ring by screwing the jackscrew. The jackscrew on the second support ring can be used for fixing the circulation head and can not be used for fixing the circulation head, but when the second support ring is sleeved on the drill rod, the jackscrew is not screwed down, and the jackscrew is screwed in a little, so that the shaking of the circulation head is reduced, and the longer jackscrew can be suitable for drill rods and circulation heads with multiple sizes.

Further, the distance between the first support ring and the second support ring is smaller than the axial length of the circulating head. The first support ring and the second support ring are both sleeved on the circulating head, the two support rings are respectively provided with a fastener to fix the circulating head, the fasteners can also be jackscrews, and the second support outer side wall can also be provided with a handle. Therefore, the circulating head fixed by the two support rings is more stable and is not easy to slide out or slide in the moving process.

Further, the fastener includes a plurality of jackscrew, and with jackscrew complex screw, handle evenly distributed is in on the circumference outer wall of first support ring, the quantity of connecting strip with the quantity of handle is unanimous, just the mounted position of connecting strip on first support ring with the mounted position one-to-one of handle on first support ring, the quantity of screw and jackscrew all with the quantity of handle is unanimous, the screw is located midpoint department between two adjacent connecting strips.

Furthermore, the surface of the jackscrew is also provided with an anti-corrosion coating.

Furthermore, the handle is provided with an anti-skid belt. So that the circulation head with larger mass is not easy to slip when being lifted or screwed.

Further, the length direction of the connecting strip is parallel to the axis of the first support ring.

Furthermore, the length direction of the connecting strip and the axis of the first supporting ring form a certain angle.

Furthermore, the utility model can be made of metals with high strength but low density, such as titanium alloy, aluminum alloy and the like.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) provided is a circulation head mounting and dismounting device which is convenient for fully fixing objects with large weight such as a circulation head and stably lifting.

(2) Except that first support ring and second support ring fix the circulation head together, it is more firm, the in-process of removal is difficult for the roll-off or the swing.

(3) The first support ring is used for fixing the circulation head, the second support ring is sleeved on the drill rod and can guide the circulation head to be in butt joint with the coupling nut, and in the process that the circulation head is screwed up with the coupling by rotating the first support ring, the swing of the circulation head is reduced by the aid of the second support ring, and the circulation head can be screwed in more easily and correctly.

(4) The device has simple structure, easy manufacture and simple and convenient operation in the use process.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 3 is a schematic structural diagram of embodiment 5 of the present invention.

The graphic symbols are illustrated as follows:

1-a first support ring, 2-a second support ring, 3-a handle, 4-a connecting strip and 5-a jackscrew.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Example 1

As shown in fig. 1, a device for disassembling and assembling a circulation head comprises a first support ring 1 which can be sleeved on the circulation head, a fastener for fixing the circulation head in the first support ring 1 is arranged on the ring wall of the first support ring 1, and at least two handles 3 are arranged on the outer side wall of the first support ring 1; still include second support ring 2, second support ring 2 with first support ring 1 is coaxial and through two piece at least connecting strip 4 fixed connection, the distance between first support ring and the second support ring is greater than the axial length of circulation head screw thread section.

The fastener includes a plurality of jackscrew 5, be equipped with on the lateral wall of first support ring 1 a plurality of with jackscrew 5 complex screw. The grip 3 is provided with an anti-skid belt. So that the circulation head with larger mass is not easy to slip when being lifted. The connecting strip 4 with the axis of first support ring 1 is certain angle, the length direction of connecting strip 4 with the contained angle of the axis of first support ring 1 is the same. And an anti-corrosion coating is also arranged on the surface of the jackscrew 5.

When the circulating head is used, after the first supporting ring 1 is sleeved on the outer wall of the circulating head, the jackscrew 5 is screwed into the screw hole and abuts against the outer wall of the circulating head, and the circulating head can be fixed in the first supporting ring 1 by screwing the jackscrew 5. After the circulation head is fixed, the whole device can be stably lifted up through the handle 3, the whole device is moved to the upper part of the drill rod, then the second support ring 2 is sleeved from top to bottom after being aligned to the top end of the drill rod, and the inner diameter of the second support ring 2 is larger than the outer diameter of the coupling female buckle. When the circulation head butts to the coupling box at the top of the drill rod, the first supporting ring 1 can be rotated to screw the circulation head and the coupling box tightly, and the plugging overflow is carried out to carry out the next killing operation.

Example 2

As shown in fig. 3, this embodiment is similar to embodiment 1, except that in this embodiment, the second support ring 2 includes two half rings, one end of the two half rings is hinged, the other end of the two half rings is detachably connected, and the connecting bar 4 is disposed on one of the two half rings. After the first support ring 1 fixes and lifts the circulation head, the second support ring 2 is not sleeved from top to bottom after aligning with the top of the drill rod, but two half rings are opened when sleeved, the half ring connected with the connecting strip 4 is close to the side wall of the drill rod, the bottom of the circulation head fixed by the first support ring 1 is also close to the top of a coupling of the drill rod, and then the other half ring is closed and the connection position is fixed. Therefore, the first support ring 1 is sleeved on the circulation head, the second support ring 2 is sleeved on the drill rod, the circulation head can be conveniently butted with a coupling of the drill rod due to the guiding of the connecting strip 4, and the circulation head is not easy to twist askew when the coupling is screwed into the circulation head. The two half rings are buckled on the drill rod and are sleeved from the top of the drill rod compared with a whole ring, so that the time of aligning the ring with the drill rod is saved, and the operation is easier.

Example 3

This embodiment is similar to embodiment 2 except that in this embodiment, the distance between the first support ring (1) and the second support ring (2) is greater than the sum of the axial length of the coupling box and the axial length of the circulation head thread segment. Therefore, the first support ring is used for fixing the circulation head, the two half rings of the second support ring are buckled on the drill rod body or the oil pipe body, and then the circulation head is butted on the coupling female buckle under the guidance of the circulation head dismounting device and is screwed. Like this, because drilling rod body or oil pipe body diameter ratio are littleer than the circulation head body, easier lock joint, simultaneously the length of connecting strip is bigger, and this device just can be better the displacement of injecing the circulation head, and the circulation head is more stable accurate with the coupling box when screwing up.

Example 4

The embodiment is similar to embodiment 2, except that in this embodiment, the second support ring 2 has a plurality of screw holes on the circumferential wall, and the screw holes have screws 5 engaged therewith. Here the jackscrew 5 is not screwed down during use, but rather the jackscrew 5 is screwed slightly in when the second support 2 is looped over the drill rod, reducing the wobbling of the cycle head. Use longer jackscrew, the utility model discloses alright be applicable to the drilling rod and the circulation head of a plurality of sizes.

Example 5

As shown in fig. 2, this embodiment is similar to embodiment 1, except that in this embodiment, the distance between the first support ring 1 and the second support ring 2 is smaller than the axial length of the circulation head, the second support ring 2 is not used for being sleeved on a drill rod, and a fastening piece for fixing the circulation head in the second support ring 2 is also arranged on the wall of the second support ring 2. The first support ring 1 and the second support ring 2 are both sleeved on the circulating head, the two support rings are both provided with fasteners to fix the circulating head, and the outer side wall of the second support 2 can also be provided with a handle 3. Therefore, the circulating head fixed by the two support rings is more stable and is not easy to slide out in the moving process.

The fastener includes a plurality of jackscrew 5, be equipped with on the lateral wall of first support ring 1 and second support ring 2 a plurality of with jackscrew 5 complex screw. After the first support ring 1 and the second support ring 2 are sleeved on the circulating pipe head, the jackscrew 5 is screwed into the screw hole and abuts against the outer wall of the circulating head, and the circulating head can be fixed in the first support ring 1 and the second support ring 2 by screwing the jackscrew 5.

Handle 3 evenly distributed is in on the circumference outer wall of first support ring 1, the quantity of connecting strip 4 with the quantity of handle 3 is unanimous, just the mounted position of connecting strip 4 on first support ring 1 with handle 3 is at the mounted position one-to-one of first support ring 1, the quantity of screw and jackscrew 5 all with handle 3 quantity is unanimous, the screw is located the midpoint department between two adjacent connecting strips 4.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A device for disassembling and assembling a circulation head is characterized by comprising a first support ring (1) which can be sleeved on the circulation head, wherein a fastening piece for fixing the circulation head in the first support ring is arranged on the ring wall of the first support ring (1), and at least two handles (3) are arranged on the outer side wall of the first support ring (1); the support ring is characterized by further comprising a second support ring (2), wherein the second support ring (2) is coaxial with the first support ring (1) and is fixedly connected with the first support ring through at least two connecting strips (4).

2. The recycling head disassembling and assembling device according to claim 1, characterized in that said second supporting ring (2) comprises two half rings, one end of said two half rings is hinged, the other end is detachably connected, said connecting bar (4) is disposed on one of the half rings, the distance between said first supporting ring (1) and said second supporting ring (2) is larger than the axial length of the recycling head thread section.

3. The circulation head dismounting device according to claim 2, wherein the distance between the first support ring (1) and the second support ring (2) is larger than the sum of the axial length of the coupling box and the axial length of the circulation head thread section.

4. A device for dismounting and mounting a circulation head according to claim 1 or 2, characterized in that the second support ring (2) is also provided with fasteners on the wall, and the fasteners comprise a plurality of top threads (5) and screw holes matched with the top threads (5).

5. The cycler head removal apparatus of claim 4, wherein the distance between the first support ring (1) and the second support ring (2) is less than the axial length of the cycler head body.

6. The circulation head dismounting device according to claim 1, characterized in that the fastening member comprises a plurality of jackscrews (5) and screw holes matched with the jackscrews (5), and the second support ring (2) is also provided with a fastening member on the wall for fixing the circulation head in the second support ring (2); handle (3) evenly distributed is in on the circumference outer wall of first support ring (1), the quantity of connecting strip (4) with the quantity of handle (3) is unanimous, just connecting strip (4) the mounted position on first support ring (1) with the mounted position one-to-one of handle (3) on first support ring (1), the quantity of screw and jackscrew (5) all with the quantity of handle (3) is unanimous, the screw is located the midpoint department between two adjacent connecting strip (4).

7. A circulation head dismounting device according to any one of claims 4-6, characterized in that the surface of the jackscrew (5) is further provided with an anti-corrosion coating.

8. The device for disassembling and assembling the circulation head according to claim 1, wherein the grip (3) is provided with an anti-slip belt.

9. The circulation head dismounting device according to claim 1, wherein the length direction of the connecting bar (4) is parallel to the axis of the first support ring (1).

10. The circulation head dismounting device according to claim 1, wherein the length direction of the connecting strip (4) is at an angle to the axis of the first support ring (1).