CN210798909U - Disconnect-type underwater wellhead suction anchor of high-efficient processing transportation - Google Patents
Disconnect-type underwater wellhead suction anchor of high-efficient processing transportation Download PDFInfo
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- CN210798909U CN210798909U CN201921063263.1U CN201921063263U CN210798909U CN 210798909 U CN210798909 U CN 210798909U CN 201921063263 U CN201921063263 U CN 201921063263U CN 210798909 U CN210798909 U CN 210798909U
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Abstract
The utility model relates to the technical field of ocean engineering auxiliary devices, in particular to a separated underwater wellhead suction anchor which is processed and transported efficiently, is convenient to disassemble and assemble, reduces the production cost and the transportation cost, improves the structural stability and the sealing performance, and provides a foundation guarantee for the smooth well construction; including the sealed suction anchor barrel in lower extreme opening top, the suction anchor barrel includes the anchor barrel slab shell group of disconnect-type, and is adjacent two sets of adopt the first rubber strip of multiunit to seal between the anchor barrel slab shell, every group adopt positioning bolt to connect between the anchor barrel slab shell, suction anchor barrel top is provided with the sealed lid group of disconnect-type, and anchor barrel slab shell group is the same with the sealed lid group quantity of disconnect-type, and is adjacent two sets of seal by multiunit second sealing strip between the sealed lid of disconnect-type, and is two sets of it all is provided with the hole of drawing water to cover to separate-type.
Description
Technical Field
The utility model relates to a ocean engineering auxiliary device's technical field especially relates to a disconnect-type underwater wellhead suction anchor of high-efficient processing transportation.
Background
As is known, a suction type cylindrical foundation is a foundation form which has a good development prospect and is applied to ocean engineering in recent 20 years, and an inverted cylindrical structure with a closed top end and an open bottom end is placed in seabed soil to provide mooring force for a ship and can also be used as a foundation structure such as an ocean platform and the like to maintain the stability of the platform. The suction anchor has the characteristics of simple and convenient construction, safe and reliable use, capability of realizing repeated use and the like, and has better technical and economic characteristics, so the suction anchor receives wide attention from the ocean engineering world and becomes a novel offshore structure facility which is possible to replace a pile structure.
In recent years, with the discovery and efficient development of underwater shallow oil and gas resources, the suction anchor is gradually applied to the development process of the underwater shallow oil and gas resources, so that support is provided for underwater wellhead equipment and a downhole well completion string, and the stability of a wellhead is maintained. The suction anchor is designed according to the mechanical parameters of the underwater soil in the design stage, wherein the outer diameter, the wall thickness, the height, the self-weight mud penetration depth, the negative pressure mud penetration depth and the negative pressure value of the anchor body are designed, and the height of the suction anchor, which is higher than a mud line after penetrating into a stratum, is designed. The suction anchor is immersed into underwater soil in an engineering ship or a drilling platform through two stages of self-weight penetration and negative pressure penetration, and upward supporting force is provided for wellhead equipment and a downhole well completion pipe string by utilizing the adhesion effect of the inner wall and the outer wall of an anchor cylinder and seabed soil and the supporting force of the soil to the cylinder end, so that the stability of a wellhead is maintained, and the efficient development of oil and gas resources is ensured.
A suction foundation for undersea is introduced in chinese patent application No. 200710177337. X. The suction anchor comprises an anchor barrel and a stabilizing disc at the upper end of the anchor top, the softening degree of a soil body around the suction anchor is reduced, the liquefaction of the soil body is eliminated, and the stability and the reliability of the suction anchor are improved.
Chinese patent application No. 200920239914.8 describes a subsea skirt suction anchor. The suction anchor comprises an anchor barrel and a reinforcing disc connected with a skirt edge, and solves the problems that the construction cost of a suction foundation is high, the horizontal bearing capacity is small, and seabed soil around the upper part of the barrel body is eroded, but the suction anchor cannot increase the side friction resistance and cannot improve the vertical bearing capacity and the ultimate uplift bearing capacity of the suction anchor.
The application number 200910225767.3 of Chinese patent introduces an expansion type deep sea suction anchor and an installation method thereof, the suction anchor can increase the vertical bearing capacity and the anti-pulling capacity of the deep sea anchor, but the suction anchor can not greatly increase the side friction resistance, and the installation method has a complex process and can not greatly improve the vertical bearing capacity and the ultimate anti-pulling bearing capacity of the suction anchor.
Chinese patent application No. 201310091856.x describes a subsea suction anchor. This suction anchor includes main bucket, bucket skirt and anchor branch etc. and whole vertical section is "umbrella" form, improves the overall stability of suction anchor, increases withdrawal resistance and horizontal bearing capacity, strengthens the anti wave erosion performance, but this suction anchor can't increase side frictional resistance, can't greatly improve the vertical bearing capacity of suction anchor and ultimate withdrawal resistance bearing capacity.
Chinese patent application No. 201310566730.3 describes a suction anchor with an attachment skirt. The suction anchor comprises an anchor barrel, an attaching skirt edge, a plurality of tension chains and a guide ring, has good vertical limit bearing capacity, but cannot greatly increase side friction resistance, and the installation method has a complex process and cannot greatly improve the vertical bearing capacity and the limit uplift bearing capacity of the suction anchor.
Chinese patent with application number 201610523474.3 introduces a suction anchor of deep sea bamboo joint formula, this suction anchor includes bamboo joint formula anchor bucket, bearing and rotatable shower nozzle, can promote the vertical bearing capacity and the extreme resistance to plucking bearing capacity of suction anchor, nevertheless be bamboo joint form because the bucket is outer, need overcome great resistance at the suction anchor injection in-process, the peritubular stratum receives disturbance intensity recovery slowly simultaneously, it is unstable to provide the load, in addition because its bamboo joint form anchor bucket appearance, the leakproofness of outer tube wall and stratum contact surface is difficult to guarantee.
Chinese patent application No. 201720217185.0 introduces a novel seabed skirt suction anchor, this suction anchor includes the main bucket of suction with the center pin, two skirt structures and annular groove, can promote the area of contact of skirt suction anchor and surrounding soil body, the frictional force of basic side and soil body has been improved, the annular groove that this suction anchor bucket set up outward sinks and runs through the time great resistance under suction anchor gravity, and it is great to the disturbance of the outer soil body of bucket, the straightness that hangs down of going into the in-process section of thick bamboo is difficult to keep, and this anchor size is great, processing, manufacturing and conveying efficiency are all lower.
The Chinese patent with the application number of 201711253348.1 introduces a hollow thread suction anchor which can pass through under the self rotation, the suction anchor comprises a suction anchor barrel, a water through cavity in the barrel wall, a continuous hollow thread on the outer wall of the barrel, two submersible pumps which are respectively connected with the water through cavity in the barrel wall and the continuous hollow thread, the contact area between the suction anchor and the stratum is increased by the rotation running mode of the suction anchor, the vertical and transverse bearing capacity of the suction anchor is improved, but the running speed of the anchor in the rotation running process is not easy to control, soil disturbance is easily caused, the effective contact area between the anchor and the stratum is reduced or even is not contacted, and the anchor is caused to fail.
The Chinese patent with the application number of 201810382104.1 introduces a deep-sea inner ring type seabed suction anchor and an installation method thereof, the suction anchor comprises a suction main barrel, the bottom of the suction main barrel is open, the top end of the suction main barrel is closed, a plurality of hollow annular bulges are arranged on the inner wall of the suction main barrel at equal intervals along the axial direction, the inner wall of the suction main barrel and the side walls of the hollow annular bulges form a barb-shaped structure, and drain holes are arranged at the top center and the top edge of the suction main barrel. This anchor increases the anchor and provides decurrent power through increasing a section of thick bamboo inside hollow annular arch, however this anchor will overcome great resistance at the in-process of going into to be unfavorable for a section of thick bamboo internal seal, the straightness of hanging down of a section of thick bamboo is difficult to the adjustment at the in-process of going into, has the risk of continuing to penetrate the stratum when tubular column dynamic load is too big in the pit, can not maintain the well head stably.
The existing suction anchor is mostly used for single-point mooring of ships, platform foundations and the like, the suction anchor is small in whole, downward pulling force is provided for the ships or the platforms, stability of the ships or the platforms is maintained, and the requirement on tightness of the suction anchor and a stratum is not high. However, the suction anchor used for exploiting underwater shallow oil and gas resources needs not only to provide enough vertical load and transverse load, but also needs to be in close contact with the stratum, the sealing performance is good, meanwhile, the suction anchor has a simple structure, is easy to process and manufacture, and is safe and reliable in the running process, so that the existing suction anchor used for exploiting underwater oil and gas resources is large in structural size, and the anchor barrel structure is often deformed or even damaged in the land transportation process, and the exploitation cost is greatly increased. In addition, a large-size guide pipe is preset in the suction anchor used for underwater oil and gas resource development at present, and in order to guarantee the verticality of the guide pipe and the anchor, rib plates are welded at the bottom of the guide pipe and inside the anchor cylinder, so that the suction anchor with the built-in guide pipe cannot generate good tightness inside the anchor cylinder after being placed in a stratum, and the stratum oil and gas resource is easy to leak and pollute the water area environment.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the suction anchor structure size that is used for oil gas resource development under water at present great, fragile, the not good defect of leakproofness in the transportation, combine the suction anchor that is used for oil gas resource development under water to put into the process and put into the characteristics of back atress and provide a disconnect-type underwater wellhead suction anchor of high-efficient processing transportation.
The utility model relates to a separate type underwater wellhead suction anchor for high-efficiency processing and transportation, which comprises a suction anchor barrel body with the lower end opening and the top sealed, wherein the suction anchor barrel body comprises a separate type anchor barrel plate shell group, two adjacent groups of anchor barrel plate shells are sealed by a plurality of groups of first rubber strips, each group of anchor barrel plate shells are connected by positioning bolts, the top of the suction anchor barrel body is provided with a separate type sealing cover group, the number of the anchor barrel plate shell groups is the same as that of the separate type sealing cover group, two adjacent groups of separate type sealing covers are sealed by a plurality of groups of second sealing strips, two groups of separate type sealing covers are both provided with water pumping holes, the middle part of the separate type sealing cover group is provided with a conduit cover, the conduit cover and the separate type sealing cover group are sealed by a first O-shaped ring, the separate type sealing cover group and the suction anchor barrel body are sealed by a second O-shaped ring, and the top in the suction anchor barrel body is provided with six groups, two groups of arc-shaped rib plates are arranged at the four groups of grooves, two groups of short rib plates are arranged at the other two groups of grooves respectively, and the two groups of short rib plates are connected with the central areas of the two groups of arc-shaped rib plates respectively.
The utility model discloses a disconnect-type underwater wellhead suction anchor of high-efficient processing transportation, suction anchor barrel lateral wall top are provided with hoisting point group, every group the equal distance of hoisting point is 10cm from the mud back mud line of the income mud of suction anchor design.
The utility model discloses a disconnect-type underwater wellhead suction anchor of high-efficient processing transportation, it is two sets of draw water the hole and be 180 and arrange respectively two sets of on the angular bisector of the sealed lid of disconnect-type to the distance apart from anchor section of thick bamboo shell axis is 1/2 of anchor section of thick bamboo shell external diameter.
The utility model discloses a disconnect-type underwater wellhead suction anchor of high-efficient processing transportation, it is two sets of the distance is not less than design pipe external diameter between arc floor central zone.
The utility model discloses a disconnect-type underwater wellhead suction anchor of high-efficient processing transportation, suction anchor barrel top play mud part be the wedge design, and suction anchor barrel top is 30-60 with contained angle between suction anchor barrel axis.
The utility model discloses a disconnect-type underwater wellhead suction anchor of high-efficient processing transportation, 40cm department down is provided with the annular arch suction anchor barrel top wedge part, six grooves of organizing are seted up on the protruding inside wall of annular.
The utility model discloses a disconnect-type underwater wellhead suction anchor of high-efficient processing transportation, every group anchor tube sheet shell thickness all from the bottom to 1/12 eminences crescent to design suction anchor tube thickness, and every group anchor tube sheet shell bottom thickness is the 2/3 of thickness in the middle of the anchor tube sheet shell.
The utility model discloses a disconnect-type underwater wellhead suction anchor of high-efficient processing transportation, anchor section of thick bamboo slab shell group quantity is even number, and is a set of anchor section of thick bamboo slab shell both ends are the internal tooth entirely, and are adjacent a set of anchor section of thick bamboo slab shell both ends are the external tooth entirely, and adopt the interior intertooth sealing strip of external tooth to seal between internal tooth and the external tooth, positioning bolt is in every group anchor section of thick bamboo slab shell external tooth middle part is arranged, and each 1 from top to bottom, and is 1/10 anchor section of thick bamboo slab shell height apart from the upper and lower end of anchor section of thick bamboo slab shell.
The utility model discloses a disconnect-type underwater wellhead suction anchor of high-efficient processing transportation, anchor section of thick bamboo slab shell group quantity is odd number, every group anchor section of thick bamboo slab shell all is that one end is the internal tooth, and the other end is the external tooth, and adopts the interior intertooth sealing strip of following between internal tooth and the external tooth to seal, positioning bolt is in every group anchor section of thick bamboo slab shell external tooth middle part is arranged, and each 1 from top to bottom, and is 1/10 anchor section of thick bamboo slab shell height apart from the upper and lower end of anchor section of thick bamboo slab shell.
Compared with the prior art, the beneficial effects of the utility model are that: the lifting point groups are at least three and are uniformly distributed around the suction anchor cylinder, the number of the anchor cylinder plate shell and the number of the separated sealing covers are not fixed, but the two lifting point groups are equal, in the figure, 4 equal parts are taken as an example, no matter how many equal parts of water pumping holes are only two, two groups of water pumping holes are connected with a suction pump in an underwater electric control device, the separated anchor cylinder design is adopted, the suction anchor can not be transported through a land road due to overlarge size, the production cost and the transportation cost are reduced, the condition of structural deformation in the transportation process of the suction anchor is eliminated, a guide pipe is not arranged in the suction anchor, but a guide pipe cover is reserved at the top of the suction anchor, the sealing performance of a shaft and the stratum after the suction anchor is placed in can be increased, the bearing capacity of a well mouth is improved, meanwhile, the verticality of the guide pipe which is placed independently can be ensured, a foundation is provided for smoothly building a well, the separated multiple groups of the anchor cylinder, the structural stability and the sealing performance of the suction anchor are improved, the top of a suction anchor cylinder body adopts a wedge-shaped design, the risk of sinking of the suction anchor caused by inaccurate stratum soil mechanical parameters is reduced, a plurality of groups of separated sealing covers at the top of the suction anchor cylinder body are sealed with the top of the suction anchor cylinder body by a second O-shaped sealing ring, the sealing performance inside the suction anchor cylinder body is improved, the bottom end of the suction anchor cylinder body adopts a trapezoidal design, the cross section of a port is reduced, the resistance in the penetration process of the suction anchor is reduced, the sealing performance between the outer wall of the suction anchor cylinder body and the stratum can be improved, two groups of arc-shaped rib plates and two groups of short rib plates are arranged at the top in the suction anchor cylinder body to provide upward supporting force for the multi-group separated sealing cover, the soil plug generated in the falling process of the suction anchor is utilized to increase the radial force and the circumferential force received by the suction anchor cylinder body, the gaps among a plurality of groups of anchor cylinder plates and shells, the disadvantage of the soil plug generated in the process of the suction anchor is converted into the advantage.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a perspective view of the arcuate rib, short rib and anchor barrel plate shell;
FIG. 3 is an exploded view of the inner and outer tooth seals, inner teeth and outer teeth;
in the drawings, the reference numbers: 1. a suction anchor cylinder; 2. an anchor barrel plate shell; 3. a first rubber strip; 4. positioning the bolt; 5. a separate sealing cover; 6. a second seal strip; 7. a water pumping hole; 8. a catheter cover; 9. a first O-ring; 10. a second O-ring; 11. an arc-shaped rib plate; 12. hoisting points; 13. sealing strips are arranged between the inner tooth and the outer tooth; 14. internal teeth; 15. an outer tooth; 16; short rib plates.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The utility model relates to a separate type underwater wellhead suction anchor for high-efficiency processing and transportation, which comprises a suction anchor cylinder body 1 with a lower end opening and a top sealed, wherein the suction anchor cylinder body 1 comprises separate type anchor cylinder plate shell 2 groups, a plurality of groups of first rubber strips 3 are adopted between two adjacent groups of anchor cylinder plate shells 2 for sealing, each group of anchor cylinder plate shells 2 are connected by a positioning bolt 4, a separate type sealing cover 5 group is arranged at the top of the suction anchor cylinder body 1, the number of the anchor cylinder plate shell 2 groups is the same as that of the separate type sealing cover 5 groups, a plurality of groups of second sealing strips 6 are adopted between two adjacent groups of separate type sealing covers 5 for sealing, water pumping holes 7 are respectively arranged on the two groups of separate type sealing covers 5, a conduit cover 8 is arranged at the middle part of the separate type sealing cover 5 group, a first O-shaped ring 9 is adopted between the conduit cover 8 and the separate type sealing cover 5 group, a separate type sealing cover 5 group and a suction anchor cylinder body, six groups of grooves are formed in the top of the interior of the suction anchor cylinder body 1, two groups of arc-shaped rib plates 11 are arranged at the four groups of grooves, two groups of short rib plates 16 are arranged at the other two groups of grooves respectively, and the two groups of short rib plates 16 are connected with the central areas of the two groups of arc-shaped rib plates 11 respectively; the lifting point groups are at least three and are uniformly distributed around the suction anchor cylinder, the number of the anchor cylinder plate shell and the number of the separated sealing covers are not fixed, but the two lifting point groups are equal, in the figure, 4 equal parts are taken as an example, no matter how many equal parts of water pumping holes are only two, two groups of water pumping holes are connected with a suction pump in an underwater electric control device, the separated anchor cylinder design is adopted, the suction anchor can not be transported through a land road due to overlarge size, the production cost and the transportation cost are reduced, the condition of structural deformation in the transportation process of the suction anchor is eliminated, a guide pipe is not arranged in the suction anchor, but a guide pipe cover is reserved at the top of the suction anchor, the sealing performance of a shaft and the stratum after the suction anchor is placed in can be increased, the bearing capacity of a well mouth is improved, meanwhile, the verticality of the guide pipe which is placed independently can be ensured, a foundation is provided for smoothly building a well, the separated multiple groups of the anchor cylinder, the structural stability and the sealing performance of the suction anchor are improved, the top of a suction anchor cylinder body adopts a wedge-shaped design, the risk of sinking of the suction anchor caused by inaccurate stratum soil mechanical parameters is reduced, a plurality of groups of separated sealing covers at the top of the suction anchor cylinder body are sealed with the top of the suction anchor cylinder body by a second O-shaped sealing ring, the sealing performance inside the suction anchor cylinder body is improved, the bottom end of the suction anchor cylinder body adopts a trapezoidal design, the cross section of a port is reduced, the resistance in the penetration process of the suction anchor is reduced, the sealing performance between the outer wall of the suction anchor cylinder body and the stratum can be improved, two groups of arc-shaped rib plates and two groups of short rib plates are arranged at the top in the suction anchor cylinder body to provide upward supporting force for the multi-group separated sealing cover, the soil plug generated in the falling process of the suction anchor is utilized to increase the radial force and the circumferential force received by the suction anchor cylinder body, the gaps among a plurality of groups of anchor cylinder plates and shells, the disadvantage of the soil plug generated in the process of the suction anchor is converted into the advantage.
The utility model discloses a disconnect-type underwater wellhead suction anchor of high-efficient processing transportation, 1 lateral wall top of suction anchor barrel is provided with hoisting point 12 groups, and every group hoisting point 12 is all apart from the mud line 10cm behind the income mud of suction anchor design.
The utility model discloses a disconnect-type underwater wellhead suction anchor of high-efficient processing transportation, two sets of holes 7 that draw water are 180 arrange respectively on the angle bisection line of two sets of sealed lids 5 of formula to the distance apart from anchor section of thick bamboo wooden clapper shell 2 axis is 1/2 of 2 external diameters of anchor section of thick bamboo wooden clapper shell.
The utility model discloses a disconnect-type underwater wellhead suction anchor of high-efficient processing transportation, the distance is not less than design pipe external diameter between 11 central authorities of two sets of arc floor.
The utility model discloses a disconnect-type underwater wellhead suction anchor of high-efficient processing transportation, 1 top mud portion of suction anchor barrel is wedge design, and the contained angle is 30-60 between 1 top of suction anchor barrel and 1 axis of suction anchor barrel.
The utility model discloses a disconnect-type underwater wellhead suction anchor of high-efficient processing transportation, 1 top wedge part of suction anchor barrel is provided with the annular arch down 40cm department, six grooves of organizing are seted up on the protruding inside wall of annular.
The utility model discloses a disconnect-type underwater wellhead suction anchor of high-efficient processing transportation, every group anchor tube shell 2 thickness all from the bottom to 1/12 eminences crescent to design suction anchor tube body 1 thickness to every group anchor tube shell 2 bottom thickness is 2/3 of anchor tube shell 2 middle thickness.
The utility model discloses a disconnect-type underwater wellhead suction anchor of high-efficient processing transportation, 2 group quantity of anchor section of thick bamboo shell are even number, 2 both ends of a set of anchor section of thick bamboo shell are internal tooth 14 entirely, 2 both ends of an adjacent set of anchor section of thick bamboo shell are external tooth 15 entirely, and adopt inside and outside intertooth sealing strip 13 to seal between internal tooth 14 and the external tooth 15, positioning bolt 4 arranges at 15 middle parts of 2 external teeth of every group anchor section of thick bamboo shell, each 1 from top to bottom, and the upper and lower end apart from anchor section of thick bamboo shell 2 is 1/10 anchor section of thick bamboo shell 2 height.
The utility model discloses a disconnect-type underwater wellhead suction anchor of high-efficient processing transportation, 2 group's quantity of anchor section of thick bamboo board shell are odd number, every group anchor section of thick bamboo board shell 2 all is that one end is internal tooth 14, and the other end is external tooth 15, and adopts inside and outside intertooth sealing strip 13 sealed between internal tooth 14 and the external tooth 15, and positioning bolt 4 arranges at 15 middle parts of every group anchor section of thick bamboo board shell 2 external tooth, each 1 from top to bottom, and is 1/10 anchor section of thick bamboo board shell 2 height apart from the upper and lower end of anchor section of thick bamboo board shell 2.
The utility model relates to a separate underwater wellhead suction anchor for high-efficiency processing and transportation, the hoisting point group has at least three, the hoisting point group is evenly distributed around the suction anchor cylinder, the number of the anchor cylinder shell and the separate sealing cover is not fixed, but the two are equal, the figure is divided into 4 equal parts, no matter the number of the water pumping holes is equal, two groups of water pumping holes are connected with the suction pump in the underwater electric control device, the design of the separate anchor cylinder is adopted, the suction anchor can not be transported through land due to the overlarge size, the production cost and the transportation cost are reduced, the condition of structural deformation in the transportation process of the suction anchor is eliminated, no conduit is arranged in the suction anchor, but a conduit cover is reserved at the top of the suction anchor, the sealing performance of the shaft and the stratum after the suction anchor is arranged can be increased, the bearing capacity of the wellhead is improved, simultaneously, the verticality of the conduit which is arranged independently can be ensured, and the foundation guarantee is provided for smooth well construction, the separated multiple groups of anchor barrel shell are connected by positioning bolts and sealed by multiple groups of first rubber strips, so that the structural stability and the sealing property of the suction anchor are improved, the top of the suction anchor barrel is designed in a wedge shape, the risk of sinking of the suction anchor caused by inaccurate stratum soil mechanical parameters is reduced, the multiple groups of separated sealing covers at the top of the suction anchor barrel are sealed with the top of the suction anchor barrel by a second O-shaped sealing ring, the sealing property of the inner part of the suction anchor barrel is improved, the bottom end of the suction anchor barrel is designed in a trapezoid shape, the sectional area of a port is reduced, the resistance in the penetration process of the suction anchor is reduced, the sealing property of the outer wall of the suction anchor barrel and the stratum can be improved, two groups of arc-shaped rib plates and two groups of short rib plates are arranged at the top in the suction anchor barrel to provide upward supporting force for the multiple groups of separated sealing covers, and the received radial force and circumferential force of the suction anchor barrel are improved by utilizing a soil plug generated in the, the gaps among the multiple groups of anchor barrel plate shells are reduced, the sealing performance of the anchor barrel is improved, and the disadvantage of the soil plug generated in the process of putting the suction anchor into the soil is converted into the advantage.
The utility model discloses a disconnect-type underwater wellhead suction anchor of high-efficient processing transportation, above the mounting means, the connected mode or the mode that sets up of all parts are welding, riveting or other common mechanical means, wherein slidable/rotate fixedly promptly for slide/rotate the state under not dropping, seal when sealed intercommunication is two connecting pieces intercommunications promptly, and the concrete structure, model and the coefficient index of its all parts are its from taking the technique, as long as can reach all can implement of its beneficial effect, the event is all no longer repeated here.
The present invention relates to a separate underwater wellhead suction anchor for efficient processing and transportation, and in particular, to a separate underwater wellhead suction anchor for efficient processing and transportation, wherein the terms "upper, lower, left, right, front, rear, inner, outer, vertical and horizontal" are used as the terms of the conventional usage or the terms "vertical" and "horizontal" are used as the ordinary terms of the art, and are not to be construed as limiting the terms, and the terms "first", "second" and "third" are not used as the specific numbers and sequences, but as the terms of the names, and the terms "include", "including" and "including" or any other variations thereof are intended to cover the non-exclusive inclusion, such that a process, method, article or apparatus including a series of elements includes not only those elements but also other elements not explicitly listed, or includes the process, method, apparatus, the method, the apparatus, An article or an apparatus.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The separated underwater wellhead suction anchor for efficient processing and transportation is characterized by comprising a suction anchor barrel body (1) with a lower end opening and a top sealed, wherein the suction anchor barrel body (1) comprises separated anchor barrel shell (2) groups, two adjacent groups of the anchor barrel shell (2) are sealed by a plurality of groups of first rubber strips (3), each group of the anchor barrel shell (2) is connected by a positioning bolt (4), a separated sealing cover (5) group is arranged at the top of the suction anchor barrel body (1), the number of the anchor barrel shell (2) groups is the same as that of the separated sealing covers (5), two adjacent groups of the separated sealing covers (5) are sealed by a plurality of groups of second sealing strips (6), water pumping holes (7) are formed in the two separated sealing covers (5), a guide pipe cover (8) is arranged in the middle of the separated sealing cover (5), and a first O (9) is used for sealing between the guide pipe cover (8) and the separated sealing cover (5) groups, the separated sealing cover (5) group and the suction anchor cylinder body (1) are sealed through a second O-shaped ring (10), six groups of grooves are formed in the top of the suction anchor cylinder body (1), four groups of grooves are formed in the positions of the grooves and are provided with two groups of arc-shaped rib plates (11), two groups of short rib plates (16) are formed in the positions of the grooves respectively, and the two groups of short rib plates (16) are connected with the central regions of the two groups of arc-shaped rib plates (11) respectively.
2. The separated underwater wellhead suction anchor for efficient processing and transportation according to claim 1, characterized in that the top end of the outer side wall of the suction anchor cylinder (1) is provided with a group of lifting points (12), and each group of the lifting points (12) is 10cm away from a mud inlet mud line designed for the suction anchor.
3. A separate subsea wellhead suction anchor for efficient process and transportation according to claim 2, characterised in that two sets of said pumping holes (7) are arranged 180 ° on the angular bisector of two separate sealing covers (5) respectively, and the distance from the axis of the anchor drum plate shell (2) is 1/2 of the outer diameter of the anchor drum plate shell (2).
4. A split subsea wellhead suction anchor for efficient process transportation according to claim 3 and characterized by the fact that the distance between the two sets of said arcuate ribs (11) in the central region is not less than the design conduit outside diameter.
5. The separated underwater wellhead suction anchor for efficient processing and transportation according to claim 4, characterized in that the mud discharging part at the top end of the suction anchor cylinder (1) is designed in a wedge shape, and the included angle between the top end of the suction anchor cylinder (1) and the axis of the suction anchor cylinder (1) is 30-60 degrees.
6. The separate underwater wellhead suction anchor for high efficiency processing and transportation according to claim 5, characterized in that the wedge part at the top end of the suction anchor cylinder (1) is provided with an annular bulge 40cm downward, and the six groups of grooves are arranged on the inner side wall of the annular bulge.
7. The separate type underwater wellhead suction anchor for high efficiency processing and transportation according to claim 6, wherein the thickness of each group of the anchor plate shells (2) is gradually increased from the bottom end to 1/12 high positions to the thickness of the designed suction anchor cylinder (1), and the thickness of the bottom end of each group of the anchor plate shells (2) is 2/3 of the middle thickness of the anchor plate shells (2).
8. The separate type underwater wellhead suction anchor for efficient processing and transportation according to claim 7, wherein the number of the anchor barrel plate shell (2) groups is even, both ends of one anchor barrel plate shell (2) group are all provided with inner teeth (14), both ends of the adjacent anchor barrel plate shell (2) group are all provided with outer teeth (15), the inner teeth (14) and the outer teeth (15) are sealed by inner and outer inter-tooth sealing strips (13), the positioning bolts (4) are arranged in the middle of the outer teeth (15) of each anchor barrel plate shell (2) group, the upper and lower parts are 1 respectively, and the distance from the upper end and the lower end of the anchor barrel plate shell (2) is 1/10.
9. The separate underwater wellhead suction anchor for efficient processing and transportation of claim 7, wherein the number of the anchor barrel plate shell (2) groups is odd, each anchor barrel plate shell (2) group is provided with an inner tooth (14) at one end and an outer tooth (15) at the other end, the inner tooth (14) and the outer tooth (15) are sealed by an inner and outer inter-tooth sealing strip (13), the positioning bolt (4) is arranged in the middle of the outer tooth (15) of each anchor barrel plate shell (2), the upper part and the lower part of the positioning bolt are respectively 1, and the distance from the upper end and the lower end of each anchor barrel plate shell (2) is 1/10.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921063263.1U CN210798909U (en) | 2019-07-09 | 2019-07-09 | Disconnect-type underwater wellhead suction anchor of high-efficient processing transportation |
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| CN201921063263.1U CN210798909U (en) | 2019-07-09 | 2019-07-09 | Disconnect-type underwater wellhead suction anchor of high-efficient processing transportation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185409A (en) * | 2019-07-09 | 2019-08-30 | 广州海洋地质调查局 | A kind of separate type underwater well head suction anchor of highly-efficient processing transport |
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2019
- 2019-07-09 CN CN201921063263.1U patent/CN210798909U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185409A (en) * | 2019-07-09 | 2019-08-30 | 广州海洋地质调查局 | A kind of separate type underwater well head suction anchor of highly-efficient processing transport |
| CN110185409B (en) * | 2019-07-09 | 2023-12-12 | 广州海洋地质调查局 | Separated underwater wellhead suction anchor for efficient processing and transportation |
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