CN202023512U

CN202023512U - Quickly connected marine riser device

Info

Publication number: CN202023512U
Application number: CN2011200709594U
Authority: CN
Inventors: 陈才虎; 杨红刚; 肖锐; 王耀峰; 祝贺; 欧波
Original assignee: Baoji Oilfield Machinery Co Ltd
Current assignee: Baoji Oilfield Machinery Co Ltd
Priority date: 2011-03-17
Filing date: 2011-03-17
Publication date: 2011-11-02
Anticipated expiration: 2021-03-17

Abstract

The utility model discloses a quickly connected marine riser device which comprises main pipeline assembly units. The main pipeline assembly units are composed of small ends of male joints, big cylindrical pipes and small ends of female joints which are welded with each other in turn. At the joint of two adjacent main pipeline assembly units, a plurality of locking blocks are uniformly sleeved on the male joints along the circumference of the male joints, wherein all the locking blocks are inserted into correspondingly processed positioning holes on the female joints through positioning pins; an outer cylinder is sleeved on the circumference of all the locking blocks; T-shaped bolts mounted on the peripheries of the locking blocks are inserted into the corresponding T-shaped notches on the outer cylinder; a locking bolt is connected between flanges II and the outer cylinder; flanges I and the flanges II are respectively fixed on the peripheries of the male joints and the female joints; and auxiliary pipelines are mounted in corresponding mounting holes of the flanges I and the flanges II. The quickly connected marine riser device has the advantages that the connection is reliable, the bearing property is excellent, the marine riser device can be easily corrected, the operation is simple, the labor intensity is efficiently reduced, and the working efficiency is promoted.

Description

The fast joint type riser system

Technical field

The utility model belongs to offshore oil drilling equipment technology field, relates to a kind of fast joint type riser system.

Background technology

The Offshore Drilling Riser device is important drilling equipment, and the reliability of its connection, connection speed have material impact to functional performance, economy and the safety of offshore boring island.When the deep water marine drilling, Offshore Drilling Riser has been set up one and has been extended to the liquid conducting pipes of BOP under water from floating drilling platform, is mainly used to circulating fluid; Support auxiliary line; Also be used for simultaneously platform installation at sea or take out BOP group under water; And in the process of making a trip, from the rig floor to the subsea wellhead installations, play the guiding role for drilling rod, drilling tool.This device comprises mainly that pipe marine riser that a major diameter, high strength, seamless or electric welding, two ends are welded with riser joints is responsible for and compositions such as throttle well killing pipeline, auxiliary line, support, it is the vitals of drilling water-separation pipe, its structure design not only will be considered supporting capacity, safety, and will take into full account the operating efficiency that marine riser is installed and used.

The riser system that pattern such as flange form has been arranged at present, simple in structure, intensity is high, supporting capacity is strong, dependable performance, its weak point is that the flange form riser system needs special instrument connecting bolt, connection and dismounting are wasted time and energy, operate dumb, labour intensity is big, has greatly prolonged the operation on the sea time, has increased operating cost.

Summary of the invention

The purpose of this utility model provides a kind of fast joint type riser system, and having solved to exist in the prior art needs special instrument connecting bolt, connects and dismounting is wasted time and energy, operate dumb, the problem that labour intensity is big.

The technical scheme that the utility model adopted is, a kind of fast joint type riser system, the small end that comprises male joint, the small end of columniform big pipe and female joint is welded to form main pipe's assembly unit successively, at adjacent two main pipe's assembly unit joints, male joint upper edge circumference evenly is set with a plurality of lock dogs, each lock dog is inserted in the corresponding locating hole of corresponding processing in the female joint by an alignment pin respectively, the excircle of all lock dogs is set with a urceolus, the T type screw of installing on each lock dog outer circumference surface enters on the urceolus in the corresponding T type groove breach, is connected with a lock bolt between urceolus and the flange II; Excircle in male joint and female joint is installed with flange I and flange II respectively, in each corresponding installing hole of flange I and flange II each auxiliary line is installed.

The beneficial effects of the utility model are that connection is reliable, load-carrying properties are good, aligns easily, and is simple to operate, effectively reduces labour intensity, can greatly improve the operating efficiency of operation on the sea.

Description of drawings

Fig. 1 is the structural representation of the utility model device;

Fig. 2 is the utility model device locking state B-B schematic cross-section among Fig. 1;

Fig. 3 is the utility model device released state B-B schematic cross-section among Fig. 1.

Among the figure, 1. male joint, 2. bolt, 3. flange I, 4. auxiliary line support, 5. female joint, 6. lock bolt, 7. flange II, 8.T type screw, 9. lock dog, 10. urceolus, 11 hydraulic lines, 12 throttlings/kill line, 13. mud supercharging pipelines, 14. drive rod, 15. alignment pins.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is elaborated.

As Fig. 1, Fig. 2, shown in Figure 3, the structure of the utility model device is, the small end that comprises male joint 1, the small end of columniform big pipe and female joint 5 is welded to form main pipe's assembly unit successively, at adjacent two main pipe's assembly unit joints, male joint 1 upper edge circumference evenly is set with six lock dogs 9, each lock dog 9 is inserted in the corresponding locating hole of corresponding processing in the female joint 5 by an alignment pin 15 respectively, the excircle of all lock dogs 9 is set with a urceolus 10, the T type screw of installing on each lock dog 9 outer circumference surface 8 enters on the urceolus 10 in the corresponding T type groove breach, be connected with lock bolt 6 between urceolus 10 and the flange II 7, be used for locking or release; Excircle in male joint 1 and female joint 5 is installed with flange I 3 and flange II 7 by bolt 2 respectively, in flange I 3 and flange II 7 each corresponding installing hole each auxiliary line is installed, comprises hydraulic line 11, throttling/kill line 12, mud supercharging pipeline 13.

Male joint 1 and female joint 5 adopt the mode of taper teeth groove engagement to lock, and profile of tooth is triangle, trapezoidal or other shapes, and the number of teeth can be 2,3 even a plurality of.Male joint 1 and female joint 5 are combination form with flange I 3 and flange II 7, or are integrated.Flange I 3, flange II 7 are illustrated whole petal pattern, or are the single chip architecture composition.Lock dog 9 is that 6,7,8 or other are a plurality of.T type groove curve on the urceolus 10 is a helix, or other function equation curve.

The assembling process of the utility model device is, at first with the small end of male joint 1 and female joint 5, be welded to form main pipe's assembly unit with columniform big pipe respectively, then flange I 3 and flange II 7 are linked together with male joint 1 and female joint 5 assemblings respectively by bolt 2, each

auxiliary line

11,12,13 is inserted in flange I 3, flange II 7 each corresponding installing hole thereupon, adopt auxiliary line support 4 fixing respectively simultaneously, marine riser main part installation this moment.Last earlier with 6 lock dogs 9 respectively with 6 T type screw 8 fastening connections, the alignment pin 15 with 6 lock dog 9 terminations is inserted into respectively in the corresponding locating hole of processing in the female joint 5 then, urceolus 10 is set on the external cylindrical surfaces of female joint 5 big ends again.When urceolus 10 was installed, the T type groove breach that the T type screw on the lock dog 98 should be aimed on the urceolus 10 was inserted in urceolus 10, then so that T type screw 8 slides on the T of urceolus 10 type groove curve flexibly.

With reference to Fig. 2, in the time of the single connection of marine riser, earlier with male joint 1 and female joint 5 and each auxiliary line (11,12,13) align up and down respectively, the male end of the single unit of marine riser is inserted after into another unit female end puts in place, move driving rod 14 with hand and drive angle of urceolus 10 rotations, then the spiral T type groove curve on the urceolus 10 is also with movement therewith, it can drive T type screw 8 each lock dogs 9 of pulling that are embedded in T type groove curve and inwardly radially slide, tooth on all lock dogs 9 and male joint 1 teeth groove mesh fully at last, this moment urceolus 10 screw and a hole of flange II 7 align, with lock bolt 6 with urceolus 10 and the 7 fastening connections of flange II, loosening to prevent urceolus 10, thereby guarantee that the tooth on the lock dog 9 and the teeth groove of male joint 1 mesh fully, make each lock dog 9 carrying evenly, connect reliable.

With reference to Fig. 3, when the dismounting marine riser was single, dismounting lock bolt 6 was oppositely moved driving rod 14 with hand and is driven urceolus earlier, and 6 lock dogs 9 and the teeth groove of male joint 1 are broken away from fully, got final product this moment and carried, and the whole marine riser of can dismantling successively is single.

The utlity model has following characteristics: 1) the male and female joint adopts the mode of taper surface teeth groove engagement to lock, align easily during installation, it is convenient to peg graft, simple to operate, drive rod as long as move, rotate an angle to drive urceolus, i.e. male and female joint connection is finished, make that connection is fast and reliable, load is good.2) design has six uniform T type shaped form grooves on the urceolus, one section close axle center of T type groove, the other end is away from the axle center, as long as clockwise rotate urceolus, then six T type curved grooves can drive the T type screw of six lock dogs, move on to the other end from a section of T type curved groove, mesh locking simultaneously or unclamp simultaneously thereby drive six lock dogs, realize that load distributes symmetrically and evenly, prolong anti-fatigue life; Six uniform T shaped form grooves are convenient to machining simultaneously.3) the male and female joint adopts joint and flange combining form, makes things convenient for selection and machining, has guaranteed intensity, and flange is the petal pattern, has alleviated the weight of whole joint, saves cost.

Claims

1. fast joint type riser system, it is characterized in that: the small end that comprises male joint (1), the small end of columniform big pipe and female joint (5) is welded to form main pipe's assembly unit successively, at adjacent two main pipe's assembly unit joints, male joint (1) upper edge circumference evenly is set with a plurality of lock dogs (9), each lock dog (9) is inserted into female joint (5) by an alignment pin (15) respectively and goes up in the corresponding locating hole of corresponding processing, the excircle of all lock dogs (9) is set with a urceolus (10), the T type screw of installing on each lock dog (9) outer circumference surface (8) enters urceolus (10) and goes up in the corresponding T type groove breach, is connected with a lock bolt (6) between urceolus (10) and the flange II (7); Excircle in male joint (1) and female joint (5) is installed with flange I (3) and flange II (7) respectively, in flange I (3) and each corresponding installing hole of flange II (7) each auxiliary line is installed.

2. fast joint type riser system according to claim 1 is characterized in that: described male joint (1) and female joint (5) adopt the mode of taper teeth groove engagement to lock, and profile of tooth is a triangle or trapezoidal.