CN220581006U

CN220581006U - Mud umbrella stair fixing device

Info

Publication number: CN220581006U
Application number: CN202320941079.2U
Authority: CN
Inventors: 曾涛; 许期泳; 钟洪成; 刘星宇
Original assignee: Sichuan Guoli Petroleum Engineering Co ltd
Current assignee: Sichuan Guoli Petroleum Engineering Co ltd
Priority date: 2023-04-23
Filing date: 2023-04-23
Publication date: 2024-03-12
Anticipated expiration: 2033-04-23

Abstract

The utility model relates to the technical field of mud umbrellas, and discloses a mud umbrella stair fixing device which comprises a drill rod body, wherein a mud injection head is fixedly arranged at the bottom of the drill rod body, a flexible blocking plug is fixedly arranged at the lower end of the drill rod body, and a threaded hole is formed in the surface of a blocking ring. This mud umbrella stair fixing device, through the setting of fixed subassembly, in the well cementation stage, cup joint the solid fixed ring in the bottom of drilling rod body, screw up the nut simultaneously, make gu fixed ring fix the surface at the drilling rod body, because gu fixed ring's surface is annular array fixedly connected with dead lever, gu fixed surface of dead lever is connected with the fixed lantern ring, and then make damping cloth fix the surface at the drilling rod body, and gu the fixed surface mounting of umbrella ring has the slip circle, when pouring cement, the slip that does not influence the mud umbrella struts, and avoided the slip of bottom mud umbrella and drop, and saved the dismouting time, play the effect that improves mud umbrella fixity and dismouting efficiency.

Description

Mud umbrella stair fixing device

Technical Field

The utility model relates to the technical field of mud umbrellas, in particular to a mud umbrella stair fixing device.

Background

The oil exploration and development equipment refers to equipment such as petroleum and natural gas exploration, drilling, exploitation, storage and transportation and the like, and comprises various geophysical prospecting and logging equipment, drilling equipment, oil and gas production equipment, underground lesson equipment, oil and gas gathering and transportation equipment, marine drilling and production platform equipment and the like and related accessories and tools; the oil refining and petrochemical equipment refers to complete equipment required in the whole process of petroleum and natural gas processing and conversion, and comprises general equipment (such as various process compressors, expanders, pumps, valves and the like), reactors, towers, heat exchange equipment, industrial furnaces, storage and transportation equipment and the like. The specifications and parameters of equipment in the oil refining and petrochemical industries are determined by the processes in the oil refining and petrochemical industries, which are process industries, and therefore, the equipment is characterized in that: a complete set; the variety and the specification of the equipment are more; the whole system has high automation requirement and can continuously run for a long period, so that the reliability of the equipment is high. The oil and gas exploration and development production process has the characteristics of multiple links, complex technology, high personalized requirements and the like, in the process of petroleum well development, well cementation measures are needed, cement is poured on the inner wall of the petroleum well by using a well cementation drill rod, and cement umbrellas are arranged on a wellhead blowout preventer to connect the slurry flowing down on a drill floor turntable, so that the wellhead blowout preventer is prevented from being polluted.

However, the conventional cement umbrella has the following disadvantages: (1) The traditional cement umbrella is arranged at the bottom of the loop bar, is inconvenient to disassemble and assemble during maintenance, consumes time and labor, and reduces the disassembly and assembly efficiency; (2) The traditional cement umbrella has a small number of ribs, and is inconvenient to provide larger elasticity and fluid channels when maintaining the optimized supporting characteristic for each metal sheet, so that the cement umbrella has lower use efficiency.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a mud umbrella stair fixing device, which solves the problems that the fixing device is inconvenient to disassemble and assemble and the elasticity and strength of umbrella ribs are inconvenient to increase in the prior art.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a mud umbrella stair fixing device, includes the drilling rod body, the bottom fixed mounting of drilling rod body has the slip casting head, the lower extreme fixed mounting of drilling rod body has the flexible stopper that hinders, the screw hole has been seted up on the surface of stopping the circle, the inside threaded connection bolt of screw hole, the surface threaded connection of bolt has the stopping circle, the upper end sliding connection of drilling rod body has the sliding ring, the fixed surface of sliding ring is connected with the retainer plate, the fixed surface of retainer plate is connected with the umbrella stand subassembly, the fixed subassembly of bottom fixedly connected with of umbrella stand subassembly.

Optionally, the umbrella stand subassembly includes umbrella ring, rib, nut and mud cloth that hinders, the fixed surface of sliding ring is connected with the umbrella ring, the screw hole has been seted up on the surface of umbrella ring, the inside threaded connection in screw hole has the nut, the surface threaded connection of nut has the rib, the fixed surface of rib is connected with mud cloth that hinders.

Optionally, fixed subassembly includes solid fixed ring, screw, dead lever and fixed lantern ring, the fixed ring of fixed surface fixedly connected with of mud cloth is hindered, the fixed surface fixedly connected with dead lever of fixed ring, the fixed lantern ring of fixed surface fixedly connected with of dead lever, threaded hole has been seted up on the surface of fixed ring, threaded hole's inside threaded connection has the screw.

Optionally, a threaded round hole is formed in the side face of the drill rod body, and a bolt is arranged in the threaded round hole.

Optionally, the material of blocking mud cloth is nylon, the upper end cover of blocking mud cloth has the tension ring.

Optionally, the rib is made of high-strength metal, and the number of the ribs is twelve.

(III) beneficial effects

The utility model provides a mud umbrella stair fixing device, which has the following beneficial effects:

1. this mud umbrella stair fixing device, through the setting of fixed subassembly, in the well cementation stage, cup joint the solid fixed ring in the bottom of drilling rod body, screw up the nut simultaneously, make the solid fixed ring fix the surface at the drilling rod body, because the surface of solid fixed ring is annular array fixedly connected with dead lever, the fixed lantern ring of fixed surface fixedly connected with of dead lever, and then make and hinder mud cloth to fix the surface at the drilling rod body, and the fixed surface mounting of umbrella ring has the slip circle, when pouring cement, the slip that does not influence the mud umbrella struts, and the slip of bottom mud umbrella has been avoided and has come off, and the dismouting time has been saved, the effect of improvement mud umbrella fixity and dismouting efficiency has been played.

2. This mud umbrella stair fixing device, through the setting of umbrella stand subassembly, at the surface mounting rib of umbrella ring, the bottom installation of rib simultaneously hinders mud cloth, and the rib has twelve, and the material is high strength metal, hinders mud cloth material and is nylon, has avoided preventing that cement paste and drilling fluid from taking place to replace, and each rib on the umbrella ring can provide great elasticity and fluid passage when keeping the support characteristic of optimization, has played the effect that improves the success rate of empty cement stopper operation.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a sliding ring according to the present utility model;

FIG. 3 is a schematic view of a reinforcement assembly according to the present utility model;

FIG. 4 is a schematic view of the structure of the umbrella frame assembly of the present utility model.

In the figure: 1. a drill rod body; 2. a mud injection head; 3. a flexible stopper; 4. a bolt; 5. a stop collar; 6. a sliding ring; 7. a fixing ring; 8. an umbrella stand assembly; 801. an umbrella ring; 802. umbrella ribs; 803. a screw cap; 804. mud-blocking cloth; 9. a fixing assembly; 901. a fixing ring; 902. a screw; 903. a fixed rod; 904. and fixing the lantern ring.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, the present utility model provides a technical solution: the utility model provides a mud umbrella stair fixing device, including drilling rod body 1, the bottom fixed mounting of drilling rod body 1 has slip casting head 2, the lower extreme fixed mounting of drilling rod body 1 has and blocks flexible stopper 3, the screw hole has been seted up on the surface of stopping circle 5, the inside screw thread connecting bolt 4 of screw hole, the surface threaded connection of bolt 4 has stopping circle 5, the upper end sliding connection of drilling rod body 1 has sliding ring 6, the fixed surface of sliding ring 6 is connected with retainer plate 7, the fixed surface of retainer plate 7 is fixedly connected with umbrella stand subassembly 8, through the setting of umbrella stand subassembly 8, install rib 802 at the surface of umbrella ring 801, simultaneously the bottom installation of rib 802 hinders mud cloth 804, and rib 802 has twelve, the material is high strength metal, it is nylon to hinder mud cloth 804 material, prevent cement paste and drilling fluid from taking place the replacement, and each rib 802 on the umbrella ring 801 can provide larger elasticity and fluid channel when maintaining optimized supporting characteristics, plays a role in improving success rate of hollow cement plug operation, the bottom of the umbrella stand component 8 is fixedly connected with the fixing component 9, through the arrangement of the fixing component 9, the fixing ring 901 is sleeved at the bottom of the drill rod body 1 in a well cementation stage, the nuts 803 are screwed down at the same time, so that the fixing ring 901 is fixed on the surface of the drill rod body 1, the surface of the fixing ring 901 is fixedly connected with the fixing rods 903 in an annular array, the surface of the fixing rods 903 is fixedly connected with the fixing collar, thus the mud blocking cloth 804 is fixed on the surface of the drill rod body 1, the sliding ring 6 is fixedly arranged on the surface of the umbrella ring 801, the sliding of the mud umbrella is not influenced when cement is poured, the sliding and the falling of the bottom mud umbrella is avoided, and the dismounting time is saved, plays a role in improving the fixity of the mud umbrella and the disassembly and assembly efficiency.

Umbrella stand subassembly 8 includes umbrella ring 801, rib 802, nut 803 and hinders mud cloth 804, the fixed surface of slip collar 6 is connected with umbrella ring 801, the screw hole has been seted up on the surface of umbrella ring 801, the inside screw connection of screw hole has nut 803, the surface screw connection of nut 803 has rib 802, the fixed surface connection of rib 802 has hinders mud cloth 804, through the setting of umbrella stand subassembly 8, the surface mounting rib 802 at umbrella ring 801, the bottom of rib 802 installs hinders mud cloth 804 simultaneously, and rib 802 has twelve, the material is high strength metal, hinder mud cloth 804 material is nylon, it prevents cement paste and drilling fluid from taking place to replace, and each rib 802 on the umbrella ring 801 can provide great elasticity and fluid passage when keeping the support characteristic of optimizing, the effect of improving the success rate of empty cement plug operation has been played.

The fixed subassembly 9 includes solid fixed ring 901, screw 902, dead lever 903 and fixed lantern ring 904, the fixed ring 901 of fixed surface connection of mud cloth 804, gu fixed surface connection of fixed ring 901 has dead lever 903, gu fixed surface connection of fixed lever 903 has fixed lantern ring 904, the screw hole has been seted up on gu fixed ring 901's surface, screw hole's inside threaded connection has screw 902, through the setting of fixed subassembly 9, cup joint gu fixed ring 901 in the bottom of drilling rod body 1, screw nut 803 is tightened simultaneously, make gu fixed ring 901 fix the surface at drilling rod body 1, because gu fixed ring 901's surface is annular array fixedly connected with dead lever 903, gu fixed surface fixedly connected with fixed lantern ring of fixed lever 903, thereby make mud cloth 804 fix the surface at drilling rod body 1, and gu fixed surface mounting of umbrella ring 801 has smooth moving coil 6, when pouring cement, the slip of mud umbrella struts, and the slip and the drop of bottom mud umbrella have been avoided, and the dismouting time has been saved, the effect of improving mud umbrella fixity and dismouting efficiency.

The screw thread circular hole has been seted up to the side of drilling rod body 1, and there is bolt 4 in the inside in screw thread circular hole, through the setting of bolt 4, has played the effect of fixed umbrella ring 801 sliding distance.

The mud-blocking cloth 804 is made of nylon, and the upper end of the mud-blocking cloth 804 is sleeved with a tension ring, so that the tension ring is arranged to improve the opening stability of the mud-blocking cloth 804.

The rib 802 is made of high-strength metal, the number of the ribs 802 is twelve, and the stability of the mud umbrella is improved through the arrangement of the ribs 802.

In the utility model, the working steps of the device are as follows:

1. in the well cementation stage, the fixing ring 901 is sleeved at the bottom of the drill rod body 1, and meanwhile, the screw cap 803 is screwed down, so that the fixing ring 901 is fixed on the surface of the drill rod body 1, as the surface of the fixing ring 901 is fixedly connected with the fixing rods 903 in an annular array, the surface of the fixing rods 903 is fixedly connected with the fixing collar, and then the mud blocking cloth 804 is fixed on the surface of the drill rod body 1, and the sliding ring 6 is fixedly arranged on the surface of the umbrella ring 801, so that the sliding and the opening of a mud umbrella are not influenced when cement is poured, and the sliding and the falling of the mud umbrella at the bottom are avoided;

2. the umbrella ribs 802 are arranged on the surface of the umbrella ring 801, meanwhile, twelve umbrella ribs 802 are arranged at the bottom of the umbrella ribs 802, the material is high-strength metal, the material of the umbrella ribs 802 is nylon, cement paste and drilling fluid are prevented from being replaced, and each umbrella rib 802 on the umbrella ring 801 can provide larger elasticity and fluid channels when the optimized supporting characteristics are maintained.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a mud umbrella stair fixing device, includes drilling rod body (1), its characterized in that: the bottom fixed mounting of drilling rod body (1) has slip casting head (2), the lower extreme of drilling rod body (1) has and blocks flexible stopper (3), the surface of drilling rod body (1) has cup jointed and has been blocked circle (5), the screw hole has been seted up on the surface of stopping circle (5), the inside threaded connection bolt (4) of screw hole, the upper end sliding connection of drilling rod body (1) has sliding ring (6), the fixed surface of sliding ring (6) is connected with retainer plate (7), the fixed surface of retainer plate (7) is connected with umbrella stand subassembly (8), the surface of drilling rod body (1) is located the bottom fixedly connected with fixed subassembly (9) of umbrella stand subassembly (8).

2. A mud umbrella stairway fixing device according to claim 1, wherein: the umbrella stand assembly (8) comprises an umbrella ring (801), umbrella ribs (802), nuts (803) and mud blocking cloth (804), wherein the umbrella ring (801) is fixedly connected with the surface of the sliding ring (6), a threaded hole is formed in the surface of the umbrella ring (801), the nuts (803) are connected with internal threads of the threaded hole, the umbrella ribs (802) are connected with surface threads of the nuts (803), and the mud blocking cloth (804) is fixedly connected with the surface of the umbrella ribs (802).

3. A mud umbrella stairway fixing device according to claim 1, wherein: the fixed subassembly (9) is including solid fixed ring (901), screw button (902), dead lever (903) and fixed lantern ring (904), the surface of drilling rod body (1) is located the bottom fixedly connected with solid fixed ring (901) that hinders mud cloth (804), the fixed surface of fixed ring (901) is connected with dead lever (903), the fixed lantern ring (904) of fixed surface fixedly connected with of dead lever (903), threaded hole has been seted up on the surface of fixed ring (901), the inside threaded connection of threaded hole has screw button (902).

4. A mud umbrella stairway fixing device according to claim 1, wherein: a threaded round hole is formed in the side face of the drill rod body (1), and a bolt (4) is arranged in the threaded round hole.

5. A mud umbrella stairway fixing device according to claim 3, characterised in that: the mud blocking cloth (804) is made of nylon, and a tension ring is sleeved at the upper end of the mud blocking cloth (804).

6. A mud umbrella stairway fixing device according to claim 2, characterised in that: the umbrella ribs (802) are made of high-strength metal, and the number of the umbrella ribs (802) is twelve.