CN104499955A - Push block composite locking type quick-connecting-type drilling riser connector - Google Patents
Push block composite locking type quick-connecting-type drilling riser connector Download PDFInfo
- Publication number
- CN104499955A CN104499955A CN201410686812.6A CN201410686812A CN104499955A CN 104499955 A CN104499955 A CN 104499955A CN 201410686812 A CN201410686812 A CN 201410686812A CN 104499955 A CN104499955 A CN 104499955A
- Authority
- CN
- China
- Prior art keywords
- lock
- driving ring
- lock dog
- curved surface
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 22
- 239000002131 composite material Substances 0.000 title abstract 4
- 241000282472 Canis lupus familiaris Species 0.000 claims description 110
- 150000001875 compounds Chemical class 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 description 10
- 230000007246 mechanism Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229930000044 secondary metabolite Natural products 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a push block composite locking type quick-connecting-type drilling riser connector. The connector is characterized in that a ring groove is formed in the excircle of a male joint and provided with multiple lock blocks circumferentially, the inner wall of each lock block is provided with a ring tooth correspondingly meshed with the ring groove while the outer wall of the same is in driving connection with a driving ring, the circumference of the driving ring is provided with driving holes radially, six uniformly-distributed curved surface grooves are formed in the middle of the excircle of the driving ring, profile of each curved surface groove is an offset centrifugal-type curve, cross section of each curved surface groove is a circular arc, six uniformly-distributed curved surfaces are arranged on the inner circumference of the driving ring, profile of each curved surface is an offset centrifugal-type curve, one ends of the curved surface grooves and the curved surfaces are close to axis while the other ends of the same is away from the axis, six uniformly-distributed fan-shaped grooves are formed in a convex edge of the upper end face of a flange of a female joint circumferentially, a lock block is arranged in each fan-shaped groove, and an offset centrifugal-type curved surface is processed on the outer wall of each lock block. The push block composite locking type quick-connecting-type drilling riser connector has the advantage that the lock blocks are large in load-bearing area, high in load-bearing capability and safe and quick in composite locking.
Description
Technical field
The invention belongs to sea oil drilling and production equipment technology field, relate to a kind of pushing block compound lock type fast-connecting type drilling riser tube connector.
Background technology
Offshore Drilling Riser (hereinafter referred to as marine riser) connector, as the important linkage in the middle of marine riser equipment, has between marine riser pipe string multiple uses such as connecting, auxiliary line supports fixing, seabed drilling and extracting equipment is installed, mud circulation and seawater isolation.
Existing riser connector form of structure has screw-type, flange bolt formula, lock block type etc. of pawling usually, screw buckle connector is adapted to shallow water, flange bolt formula is adapted to deep water, has and connects the features such as reliable, bearing capacity is large, but deficiency be installing/dismounting time-consuming effort, inefficiency; Pawl lock block type joint compared with flanged fitting, and connection speed is relatively very fast, but still needs driving six bolts when connecting, operation or cumbersome.
Summary of the invention
The object of this invention is to provide a kind of pushing block compound lock type fast-connecting type drilling riser tube connector, solve the structural limitations existed in prior art, cause operation to be wasted time and energy, ineffective problem.
The technical solution adopted in the present invention is, a kind of pushing block compound lock type fast-connecting type drilling riser tube connector, comprise male joint and female joint, the cylindrical of male joint is provided with annular groove, this annular groove is circumferentially provided with multiple lock dog, each lock dog inwall is provided with the ring tooth that be engaged corresponding to annular groove, and all lock dog outer walls drive with driving ring and are connected, and driving ring circumference radial direction is provided with the drive hole of multiple driving rod;
The curved surface groove that six uniform profiles are biased centrifugal curve, cross section is circular arc is respectively arranged with in the middle part of driving ring cylindrical, driving ring inner periphery is provided with six uniform profiles for biased centrifugal shaped form curved surface, one end of these six curved surface grooves and six curved surfaces is near axle center, and the other end is away from axle center; In convex edge, female joint flange upper surface, circumference is provided with six uniform fan grooves, and be provided with a lock dog in each fan groove, each lock dog outer wall is processed with biased centrifugal curved surface, and the centrifugal curved surface of the radial offset arranged with driving ring inwall matches.
Pushing block compound lock type fast-connecting type drilling riser tube connector of the present invention, its feature is also:
Female joint flange upper surface diametrically both sides is symmetrically arranged with two keyways, all vertically has a screw and a dowel hole in each keyway; Driving ring cylindrical bottom is provided with four T-slot be arranged symmetrically with between two, every 30 °, two T-slot intervals; Location lock dog is inlaid with in the keyway of female joint, location lock dog is L-type lock dog, vertical section termination is that T-shaped shape matches with the T-shaped locked groove in driving ring, elongated hole and circular hole is had in the middle of horizontal segment, tightening lock pin is connected with the screw of female joint flange through the elongated hole of location lock dog, by screwing tightening lock pin by location lock dog compression to realize locating the anti-back function of lock dog, anti-back lock pin is connected on the circular hole of location lock dog.
The locking thread form formula of annular groove adopts 45 ° of zigzag or the form such as employing 3 °, 30 ° of zigzag, rectangle, circles, and the locking tooth number of annular groove adopts the form such as four teeth or two teeth, three teeth, five teeth.
The inside and outside end of driving ring curved groove and the range difference of driving ring axis are greater than radial distance when lock dog engages with male joint annular groove.
Six fan grooves that circumference is uniform, are set to two, three, four, eight as required; Lock dog correspondence is set to two, three, four, eight, corresponding driving ring excircle is also set to two, three, four, eight uniform profiles for biased centrifugal shaped form arc groove, inner periphery being also set to two, three, four, eight uniform profiles is biased centrifugal shaped form curved surface.
Lock dog is connected with driving ring by ball-type screw.
The invention has the beneficial effects as follows, for ocean deepwater technical field development and Design, it is a kind of Curve guide impeller to Chinese national inventing patent ZL201110038537.3, it connects locking mode and still adopts rotary actuation ring to drive the mode of six lock dogs insertion male joint annular grooves to realize, whole installation, unloading process only need less rotating torque that driving ring is rotated 30 °, then promote, fixing pushing block-location lock dog can connect locking, dismounting is efficient and convenient.The application is mainly based on the optimization again of lock block driving mechanism, retaining mechanism and bearer connection mechanism three aspect, it is large that connector after improvement has lock dog loaded area, supporting capacity is strong, the multiple advantages such as lock dog compound is locked safely and fast, high-pressure slurry seal compatibility is good, meet the drillng operation requirement under the conditional operation such as ocean deepwater, ultra-deep-water environment completely.
Accompanying drawing explanation
Fig. 1 is riser connector overall structure sketch of the present invention;
Fig. 2 is riser connector locking state sketch of the present invention;
Fig. 3 is riser connector released state sketch of the present invention;
Fig. 4 is the A-A schematic cross-section in Fig. 2;
Fig. 5 is the B direction schematic diagram in Fig. 3;
Fig. 6 is the I position partial enlarged drawing in Fig. 1.
In figure, 1. male joint, 2. auxiliary line male joint, 3. adjusting nut, 4. driving ring, 5. ball-type screw, 6. lock dog, 7. tightening spiral pin, 8. primary seal, 9. auxiliary seal, 10. auxiliary line female joint, 11. female joints, 12. location lock dogs, 13. tightening lock pins, 14. anti-back lock pins, 15. driving rods.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
With reference to Fig. 1, Fig. 6, structure of the present invention is, comprise male joint 1 and female joint 11, male joint 1 and female joint 11 termination contact surface adopt step contact, and contact surface is provided with multiple tracks primary seal 8, and the cylindrical on male joint 1 step is provided with annular groove, this annular groove is circumferentially provided with multiple lock dog 6, each lock dog 6 inwall is provided with the ring tooth that be engaged corresponding to annular groove, and all lock dog 6 outer walls drive with driving ring 4 and are connected, and driving ring 4 circumference radial direction is provided with the drive hole of multiple driving rod 15;
Auxiliary line male joint 2 is installed with vertically outward at male joint 1 flange, auxiliary line male joint 2 is circumferentially set with adjusting nut 3, it is spacing that adjusting nut 3 realizes circumference by tightening spiral pin 7 and auxiliary line male joint 2, be installed with auxiliary line female joint 10 vertically outward at female joint 11 flange, auxiliary line male joint 2 is provided with auxiliary seal 9 with the interface of auxiliary line female joint 10;
With reference to Fig. 2, Fig. 3, the curved surface groove that six uniform profiles are biased centrifugal curve, cross section is circular arc is respectively arranged with in the middle part of driving ring 4 cylindrical, driving ring 4 inner periphery is provided with six uniform profiles for biased centrifugal shaped form curved surface, one end of these six curved surface grooves and six curved surfaces is near axle center, and the other end is away from axle center; In convex edge, female joint 11 flange upper surface, circumference is provided with six uniform fan grooves, a lock dog 6 is provided with in each fan groove, each lock dog 6 outer wall is processed with biased centrifugal curved surface, the centrifugal curved surface of radial offset arranged with driving ring 4 inwall matches, and each lock dog 6 outer wall is installed with a ball-type screw 5;
With reference to Fig. 4, Fig. 5, be diametrically symmetrically arranged with two keyways in both sides at female joint 11 flange upper surface, in each keyway, all vertically have a screw and a dowel hole, driving ring 4 cylindrical bottom is provided with four T-slot be arranged symmetrically with between two, every 30 °, two T-slot intervals, location lock dog 12 is inlaid with in the keyway of female joint 11, can move radially, location lock dog 12 is for L-type lock dog is (see Fig. 4, shown in Fig. 5), vertical section termination is that T-shaped shape matches with the T-shaped locked groove in driving ring 4, elongated hole and circular hole is had in the middle of horizontal segment, tightening lock pin 13 is connected with the screw of female joint 11 flange through the elongated hole of location lock dog 12, by screwing the anti-back function that location lock dog 12 compresses to realize locating lock dog 12 by tightening lock pin 13, anti-back lock pin 14 is connected on the circular hole of location lock dog 12, by screwing anti-back lock pin 14, make in its dowel hole be embedded in female joint 11 keyway, realize male joint 1, the secondary compound anti-back unlocking function of female joint 1.
In Fig. 2, riser connector is locking state, utilize driving rod 15 that driving ring 4 is turned clockwise 30 °, namely from Fig. 2 state to Fig. 3 state, six ball-type screws 5 that driving ring 4 utilizes six curved surface grooves will to be connected with lock dog 6, move on to the other end away from axle center from paraxial heart one end of curved surface groove simultaneously, now lock dog 6 is also natural moves along with ball-type screw 5 realizes radial direction, when this makes it possible to guarantee rotary actuation ring 4, drive six lock dogs 6 to move radially simultaneously, displacement is that on driving ring 4, profile is biased centrifugal curve, cross section is in the curved surface groove of circular arc, the semidiameter (radial difference) of outer end, see that in Fig. 3, riser connector is released state.
After male joint 1, female joint 11 drive lock dog 6 to connect by driving ring 4, the T-shaped locked groove that running fix lock dog 12 embeds driving ring 4 prevents driving ring 4 from rotating, and moves in order to avoid it drives after lock dog 6 after rotating, so cause male joint 1, the accident of female joint 11 frees.
When male and female joint connects, the mode relying on six lock dogs 6 in female joint 11 to be connected with the horizontal zigzag annular groove of male joint 1 outside realizes, wherein the coupling part of lock dog 6 inwall, male joint 1 is that horizontal zigzag annular groove coordinates, and annular groove is the zigzag structure of special angle.The locking thread form formula of annular groove adopts 45 ° of zigzag or the form such as employing 3 °, 30 ° of zigzag, rectangle, circles, and the locking tooth number of annular groove adopts the form such as four teeth or two teeth, three teeth, five teeth.
The inside and outside end of driving ring 4 curved groove and the range difference of driving ring 4 axis are greater than radial distance when lock dog 6 engages with male joint 1 annular groove.
Uniform six fan grooves of circumference, also can be set to the numbers such as two, three, four, eight as required.Lock dog also correspondence can be designed to two, three, four, eight, corresponding driving ring excircle also can be designed to two, three, four, eight uniform profiles for biased centrifugal shaped form arc groove, inner periphery also can be designed to two, three, four, eight uniform profiles is biased centrifugal shaped form curved surface.Lock dog 6 is connected with driving ring 4 by ball-type screw 5, or is connected with driving ring 4 by other form curved surfaces corresponding.
The course of work of the rotary-type riser connector of the present invention is,
Connecting locking process is first fix female joint 11 on platform, and then transfer male joint 1, treat that female joint 11 is inserted in male joint 1, and arrive qualifying bit postpone, each auxiliary line male joint 2 is also inserted in corresponding auxiliary line female joint 10 simultaneously.Driving rod 15 is inserted in driving ring 4 drive hole circumferentially, driving rod 15 is utilized to drive driving ring 4 to be rotated counterclockwise 30 °, drive the lock dog 6 in female joint 11 to prolong annular groove radial direction to move to axle center and the final annular groove inserting male joint 1, then centripetal promotion location lock dog 12, embed on driving ring 4 and locate locked groove accordingly, tighten tightening lock pin 13 and anti-back lock pin 14, namely reach male joint 1, female joint 11 connects the object (as Fig. 2) locked.
Unblock unloading process is, first anti-back lock pin 14 is unclamped, and from the dowel hole female joint 11, exit anti-back lock pin 14 completely but do not pull down from location lock dog 12, then screwed tightening lock pin 13, radial direction exits location lock dog 12, utilizes driving rod 15 to drive driving ring 4 to turn clockwise 30 °, drive lock dog 6 to the initial position away from axis direction, lock dog 6 and male joint 1 are thrown off, and screw tightening lock pin 13, to lock driving ring 4 and lock dog 6 simultaneously.Now lift by crane male joint 1, just male joint 1 and female joint 11 can be thrown off (as Fig. 3).
Device of the present invention, ocean deepwater, ultra deepwater drilling job requirements can be adapted to, there is installation, dismantle quick and convenient, to connect the feature such as safe and reliable, time saving and energy saving marine riser connector, for connecting marine riser string, for marine drilling operation provides one to be communicated with the passage in seabed, insulating sea water when simultaneously having marine drilling concurrently, inner mud circulation, respectively control the multiple uses such as pipeline is fixed, the lifting installation of BOP group on ocean platform, drilling tool guiding.
In addition, it is emphasised that,
Drilling riser tube connector of the present invention is compared with Chinese invention patent ZL201110038537.3, the structure improved mainly comprises two parts, namely the lock dog drive part be made up of driving ring 4, ball-type screw 5, lock dog 6, female joint 11, and the connection lock portion to be made up of driving ring 4, female joint 11, location lock dog 12, tightening lock pin 13, anti-back lock pin 14, other parts are identical with China national patent of invention ZL201110038537.3.
As shown in Figure 1, Figure 2, Figure 3 shows, described lock dog drive part is, six lock dogs 6 are arranged in the uniform fan groove of female joint 11 upper surface six, lock dog 6 inwall is still horizontal zigzag annular groove, match with the horizontal zigzag annular groove on male joint 1 cylindrical, lock dog 6 outer wall is curved surface and coordinates with the curved surface of driving ring 4 inwall.The middle part excircle of driving ring 4 is evenly equipped with six profiles are biased centrifugal curve, cross section is circular arc curved surface groove and six circular drives holes, four T-shaped locating slots in driving ring 4 bottom again symmetric design, every two symmetrical according to circumferential spacing 30 °.Lock dog 6 outer wall is biased centrifugal curve by ball-type screw 5 and driving ring 4 inner surface contour, cross section is that the curved surface groove of circular arc is connected, turn clockwise driving ring 30 °, six ball-type screws 5 just simultaneously from driving ring 4 six profiles be biased centrifugal curve, cross section is that the curved surface groove outer end slippage of circular arc is inner to curved surface groove, be biased centrifugal curve at six ball-type screws 5 along the profile of six driving rings 4, while cross section is the curved surface groove slippage of circular arc, six ball-type screws 5 also with six lock dogs 6 along six fan grooves in female joint 11 to internal diameter direction slippage, and the position that slippage is engaged completely to six lock dogs 6 and male joint 1 annular groove, thus realize lock dog 6 by male joint 1, the object that female joint 11 connects.T-slot in this partial removal patent ZL201110038537.3 in female joint 11, change on driving ring 4 outer wall by six sections of curved surface grooves on driving ring 4 inwall, the T-shaped section of curved surface groove changes circular arc type section into.After improvement compared with before improvement, driving ring 4 frictional force is less, and action is more smooth.
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, described connection lock portion is, the connection of male joint 1, female joint 11 locking realizes to drive lock dog 6 by fixing, freeing driving ring 4, the fixing of driving ring 4, frees and locates lock dog 12 realize by embedding or exiting.On driving ring 4,30 °, symmetrical interval is designed with four T-shaped locked grooves, female joint flange is designed with two symmetrical keyways, bottom land is designed with screw and dowel hole respectively, location lock dog 12 is designed with elongated hole and circular hole, tightening lock pin 13 is connected with screw on female joint 11 flange by the elongated hole on the lock dog 12 of location, meanwhile, the anti-back lock pin 14 be connected to location lock dog 12 can insert or exit dowel hole corresponding on flange.During locking, location lock dog 12 move along the keyway in female joint 11, imbed the T-shaped locked groove on driving ring 4, then tighten tightening lock pin 13, anti-back lock pin 14 can realize male joint 1, female joint 11 connect locking.Tightening lock pin 13 compresses location lock dog 12; can prevent locating lock dog 12 and exit T-shaped locked groove on driving ring 4, thus cause lock dog 6 rollback, male joint 1, female joint 11 unlock; tighten anti-back lock pin 14; insert it into the dowel hole on female joint 11 flange, object is under tightening lock pin 13 loosens situation, and location lock dog 12 remains unchanged by anti-back lock pin 14 pin at locked position; can not rollback; thus making lock dog 6 rollback, male joint 1, female joint 11 unlock, and are a kind of second protection mechanisms.During unblock, unclamp tightening lock pin 13, anti-back lock pin 14, anti-back lock pin 14 exits from the dowel hole female joint 11 flange, rollback location lock dog 12 makes it exit completely from driving ring 4 locked groove, then driving ring 4 is rotated 30 °, then promotes another locked groove that location lock dog 12 inserts driving ring 4 successively, tighten tightening lock pin 13, anti-back lock pin 14, can realize lock dog 6 rollback, male joint 1, female joint 11 unlock, and driving ring 4 and lock dog 6 are fixed on the object of unlocked position.This part eliminates the locating hole and positioning bolt that two circumferential spacing in male joint 1 in patent ZL201110038537.3, female joint 11 distribute by 30 °, change bolt-locking location into location lock dog locking positioning, Comparatively speaking its more reliable performance, operation of being simultaneously more convenient for.
While main body coupling part has connected, each auxiliary line coupling part is still identical with patent ZL201110038537.3, while male joint 1, female joint 11 connect, also grafting is complete all for each auxiliary line joint male and female joint, each auxiliary line and pipe interior or exterior space completely cut off by the sealing between each male and female joint, and now single just all installation of marine riser connects end.
Structure of the present invention, compared with patent ZL201110038537.3, has the following advantages:
1) retaining mechanism of the present invention has uniqueness, efficiently locking mode, the T-shaped locked groove of driving ring 4 bottom is inserted by moving radially location lock dog 12, then tightening lock pin 13, anti-back lock pin 14 is tightened, compound positioning and locking is carried out to location lock dog 12, thus prevent location lock dog 12 rollback, cause driving ring 4 to rotate in a circumferential direction, drive six lock dogs 6 to move radially, and then cause the consequence of male joint 1, female joint 11 unblock.The mode that fixing employing tightening lock pin 13 pretightning force of location lock dog 12 compresses realizes, what design with the cooperation position of tightening lock pin 13 in the middle of the lock dog 12 of location is elongated hole, can guarantee that location lock dog 12 moves left and right, the design of anti-back lock pin 14 effectively can prevent location lock dog 12 rollback when tightening lock pin 13 shakes pine, be the locking design of a kind of secondary.
2) the present invention have faster, more convenient, safer, more labour-saving connect effect, driving ring 4 and six lock dogs 6 are designed with curved surface groove and the curved surface that six uniform profiles are biased centrifugal curve, cross section is circular arc respectively, one end of round surface groove and curved surface is near axle center, and the other end is away from axle center.Turn clockwise driving ring 30 °, the ball-type screw 5 that on driving ring 4 excircle, six just can be connected with lock dog 6 by six curved surface grooves, move on to the other end from one end of curved surface groove simultaneously, so just can guarantee when rotary actuation ring 4, drive six lock dogs 6 to move radially simultaneously.On driving ring 4 and six lock dogs 6, the curved form of design is identical, can cooperatively interact, when can guarantee that male and female joint connects like this, be born the radial pressure of lock dog 6 by driving 4 ring curved surface, reduces the radial stresses of lock dog 6 external surface, improves the safety of connection.Simultaneously on driving ring 4 excircle, profile is biased centrifugal curve, cross section is the curved surface groove of circular arc and the design of the ball-type screw 5 that matches with it, and when making to connect, the frictional force of rotary actuation ring is less, and action is more smooth.
3) in type of attachment of the present invention, the coupling part of lock dog 6 inwall and male joint 1 is that horizontal zigzag annular groove designs, and the angle design of annular groove is unique, and such design can ensure when joint connects stressed, lock dog does not have lateral pressure, improves safety during joint work.
It is simple that overall advantage of the present invention is embodied in structure, connects rapidly, reliable, locking property is good, tension, bending resistance, good seal performance, the aspect such as easy to connect.Can not only be applied to well in the middle of various marine site, sea situation, especially adapt to the drillng operation under the mal-conditions such as ocean deepwater, but also there is good economic performance and market popularization value.
Claims (6)
1. a pushing block compound lock type fast-connecting type drilling riser tube connector, its feature is: comprise male joint (1) and female joint (11), contact surface is provided with multiple tracks primary seal (8), the cylindrical of male joint (1) is provided with annular groove, this annular groove is circumferentially provided with multiple lock dog (6), each lock dog (6) inwall is provided with the ring tooth that be engaged corresponding to annular groove, all lock dogs (6) outer wall drives with driving ring (4) and is connected, and driving ring (4) circumference radial direction is provided with the drive hole of multiple driving rod (15);
The curved surface groove that six uniform profiles are biased centrifugal curve, cross section is circular arc is respectively arranged with in the middle part of driving ring (4) cylindrical, driving ring (4) inner periphery is provided with six uniform profiles for biased centrifugal shaped form curved surface, one end of these six curved surface grooves and six curved surfaces is near axle center, and the other end is away from axle center; In convex edge, female joint (11) flange upper surface, circumference is provided with six uniform fan grooves, a lock dog (6) is provided with in each fan groove, each lock dog (6) outer wall is processed with biased centrifugal curved surface, and the centrifugal curved surface of radial offset arranged with driving ring (4) inwall matches.
2. pushing block compound lock type fast-connecting type drilling riser tube connector according to claim 1, its feature is: described female joint (11) flange upper surface diametrically both sides is symmetrically arranged with two keyways, all vertically has a screw and a dowel hole in each keyway, driving ring (4) cylindrical bottom is provided with four T-slot be arranged symmetrically with between two, every 30 °, two T-slot intervals, location lock dog (12) is inlaid with in the keyway of female joint (11), location lock dog (12) is L-type lock dog, vertical section termination is that T-shaped shape matches with the T-shaped locked groove in driving ring (4), elongated hole and circular hole is had in the middle of horizontal segment, tightening lock pin (13) is connected with the screw of female joint (11) flange through the elongated hole of location lock dog (12), lock dog (12) compression will be located to realize locating the anti-back function of lock dog (12) by screwing tightening lock pin (13), anti-back lock pin (14) is connected on the circular hole of location lock dog (12).
3. pushing block compound lock type fast-connecting type drilling riser tube connector according to claim 1, its feature is: the locking thread form formula of described annular groove adopts 45 ° of zigzag or the form such as employing 3 °, 30 ° of zigzag, rectangle, circles, and the locking tooth number of annular groove adopts the form such as four teeth or two teeth, three teeth, five teeth.
4. pushing block compound lock type fast-connecting type drilling riser tube connector according to claim 1, its feature is: the described inside and outside end of driving ring (4) curved groove and the range difference of driving ring (4) axis are greater than radial distance when lock dog (6) engages with male joint (1) annular groove.
5. pushing block compound lock type fast-connecting type drilling riser tube connector according to claim 1, its feature is: six fan grooves that described circumference is uniform, is set to two, three, four, eight as required; Lock dog correspondence is set to two, three, four, eight, corresponding driving ring excircle is also set to two, three, four, eight uniform profiles for biased centrifugal shaped form arc groove, inner periphery being also set to two, three, four, eight uniform profiles is biased centrifugal shaped form curved surface.
6. pushing block compound lock type fast-connecting type drilling riser tube connector according to claim 1, its feature is: described lock dog (6) is connected with driving ring (4) by ball-type screw (5), or is connected with driving ring (4) by other form curved surfaces corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410686812.6A CN104499955B (en) | 2014-11-24 | 2014-11-24 | A kind of pushing block is combined lock type fast-connecting type drilling riser tube connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410686812.6A CN104499955B (en) | 2014-11-24 | 2014-11-24 | A kind of pushing block is combined lock type fast-connecting type drilling riser tube connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104499955A true CN104499955A (en) | 2015-04-08 |
| CN104499955B CN104499955B (en) | 2016-12-07 |
Family
ID=52941396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410686812.6A Active CN104499955B (en) | 2014-11-24 | 2014-11-24 | A kind of pushing block is combined lock type fast-connecting type drilling riser tube connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104499955B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050145A (en) * | 2016-08-05 | 2016-10-26 | 王岩卿 | Underwater drilling rig |
| CN110985753A (en) * | 2019-12-24 | 2020-04-10 | 宝鸡石油机械有限责任公司 | Mechanical type installation device suitable for ocean mining riser |
| CN111980618A (en) * | 2020-09-23 | 2020-11-24 | 中油国家油气钻井装备工程技术研究中心有限公司 | Well head connector with emergency mechanical unlocking function |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB966842A (en) * | 1962-06-07 | 1964-08-19 | Shell Int Research | Pipe coupling |
| US4121861A (en) * | 1977-04-29 | 1978-10-24 | Lord Corporation | Flexible sealing joint |
| WO2007025210A2 (en) * | 2005-08-23 | 2007-03-01 | Vetco Gray Inc. | Preloaded riser coupling system |
| CN201778669U (en) * | 2010-07-19 | 2011-03-30 | 宝鸡石油机械有限责任公司 | Locking piece connecting type marine riser device |
| CN102146772A (en) * | 2011-02-15 | 2011-08-10 | 宝鸡石油机械有限责任公司 | Rotary locking piece type drilling riser connector |
| CN102162339A (en) * | 2010-02-24 | 2011-08-24 | 建湖县永维阀门钻件有限公司 | Quick connection mechanism for high-strength dual-seal deep sea anti-ice marine riser |
| CN202673170U (en) * | 2012-07-17 | 2013-01-16 | 中国海洋石油总公司 | Breechblock type riser joint |
-
2014
- 2014-11-24 CN CN201410686812.6A patent/CN104499955B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB966842A (en) * | 1962-06-07 | 1964-08-19 | Shell Int Research | Pipe coupling |
| US4121861A (en) * | 1977-04-29 | 1978-10-24 | Lord Corporation | Flexible sealing joint |
| WO2007025210A2 (en) * | 2005-08-23 | 2007-03-01 | Vetco Gray Inc. | Preloaded riser coupling system |
| CN102162339A (en) * | 2010-02-24 | 2011-08-24 | 建湖县永维阀门钻件有限公司 | Quick connection mechanism for high-strength dual-seal deep sea anti-ice marine riser |
| CN201778669U (en) * | 2010-07-19 | 2011-03-30 | 宝鸡石油机械有限责任公司 | Locking piece connecting type marine riser device |
| CN102146772A (en) * | 2011-02-15 | 2011-08-10 | 宝鸡石油机械有限责任公司 | Rotary locking piece type drilling riser connector |
| CN202673170U (en) * | 2012-07-17 | 2013-01-16 | 中国海洋石油总公司 | Breechblock type riser joint |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050145A (en) * | 2016-08-05 | 2016-10-26 | 王岩卿 | Underwater drilling rig |
| CN110985753A (en) * | 2019-12-24 | 2020-04-10 | 宝鸡石油机械有限责任公司 | Mechanical type installation device suitable for ocean mining riser |
| CN111980618A (en) * | 2020-09-23 | 2020-11-24 | 中油国家油气钻井装备工程技术研究中心有限公司 | Well head connector with emergency mechanical unlocking function |
| CN111980618B (en) * | 2020-09-23 | 2022-06-10 | 中油国家油气钻井装备工程技术研究中心有限公司 | Well head connector with emergency mechanical unlocking function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104499955B (en) | 2016-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9222315B2 (en) | Rotary lock block type drilling riser connector | |
| CN101737016B (en) | Torque-withstanding drill pipe elevating device | |
| CN104499955A (en) | Push block composite locking type quick-connecting-type drilling riser connector | |
| GB2435313A (en) | Pipe connector actuated by power tool | |
| CN112324371B (en) | Tool for feeding and recovering tubing hanger of underwater Christmas tree | |
| CN106837239B (en) | Hydraulic pushing type rubber sealing cement head for rotary tail pipe well cementation | |
| CN111485832B (en) | Hexagonal inserted type outer groove high-pressure dense drill rod | |
| CN204238869U (en) | The external circlip type riser-connector of a kind of anti-high moment of torsion type | |
| CN201778669U (en) | Locking piece connecting type marine riser device | |
| RU2606008C2 (en) | Threaded connection with low makeup torque | |
| CN201318131Y (en) | Fully automatic quick connector for offshore oil drilling riser | |
| CN113404954A (en) | Underwater bolt pre-tightening telescopic connector | |
| CN103437709B (en) | Method for casing running operation by using casing driving head | |
| CN202273603U (en) | Anti-unscrew structure of offshore drilling and production pipe joint | |
| CN201293161Y (en) | Pushing and grabbing riser quick joint | |
| CN107191144B (en) | A kind of seabed drill-bit changing device | |
| CN103437708B (en) | Casing driving head suitable for casing drilling | |
| CN111520098B (en) | Wellhead connector for underwater wellhead and conduit hammering method installation | |
| CN207229073U (en) | Participate in the auxiliary line device of the axial load distribution of marine riser supervisor | |
| CN209586294U (en) | A kind of drilling water-separation pipe promotion pressure test tool | |
| CN202023512U (en) | Quickly connected marine riser device | |
| CN204312905U (en) | The quick reducing sleeve of a kind of slip casting flexible pipe | |
| CN219300127U (en) | High-pressure steel wire winding rubber hose | |
| CN104563905B (en) | The spin-ended structure of deep-sea oil boring casing joint | |
| CN111043400A (en) | Deepwater sea pipe maintenance fixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210115 Address after: 721002 No.2 Dongfeng Road, Jintai District, Baoji City, Shaanxi Province Patentee after: Baoji Oilfield Machinery Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC national oil and gas drilling equipment Engineering Technology Research Center Co., Ltd Address before: 721002 No. 2 Dongfeng Road, Shaanxi, Baoji Patentee before: Baoji Oilfield Machinery Co.,Ltd. |
|
| TR01 | Transfer of patent right |