CN212500934U

CN212500934U - Sea area drilling device

Info

Publication number: CN212500934U
Application number: CN202020961823.1U
Authority: CN
Inventors: 李飚; 刘生财; 潘杰; 傅建斌; 王华俊; 顾善翔; 余俊顺; 周江锋
Original assignee: Zhejiang Engineering Survey And Design Institute Group Co ltd
Current assignee: Zhejiang Engineering Survey And Design Institute Group Co ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-02-09
Anticipated expiration: 2030-05-29

Abstract

The utility model relates to a sea area drilling rig has related to the technical field of submarine drilling, has solved the problem that sea level altitude variation caused the influence to drilling work, and its technical scheme main points include drilling platform and first sleeve pipe, still include the second sleeve pipe, the last confession of having seted up of drilling platform the through-hole that the second sleeve pipe stretches out, the sheathed tube one end of second is fixed in drilling platform, the second sleeve pipe is kept away from drilling platform's a pot head is located first sleeve pipe, the sheathed tube end fixing of second has solid fixed ring, drilling platform is in through-hole department has seted up the confession gu the spacing groove that solid fixed ring placed, drilling platform is last to have with gu fixed ring compresses tightly the limit structure of spacing groove. The utility model discloses have the convenience and reduce the sea level height and cause the effect that influences the probability to drilling work.

Description

Sea area drilling device

Technical Field

The utility model belongs to the technical field of the technique of submarine drilling and specifically relates to a sea area probing device is related to.

Background

Engineering geological drilling refers to an exploration method for drilling holes in the ground by using a drilling machine or a special tool and taking machinery or manpower as power to find out engineering geological conditions so as to obtain engineering geological data; the scope of development often involves sea areas with depths of 50m or even more, and accordingly offshore engineering exploration is also subject to new challenges. At present, offshore engineering exploration is mostly carried out by adopting modified civil ships.

The utility model discloses an authorized bulletin number is CN 206511082U's utility model discloses a marine exploration platform of column type is held up to ship, including the stand, set up righting device on the ship is held up to the anchoring location, the board of righting that will hold up the device is arranged in the stand outside and is left the clearance to at the fixed operation platform of stand. The gap between the righting plate of the righting device and the upright post is utilized to eliminate the influence of the tidal water fluctuation and surge on the upright post and prevent the ship from shaking and transmitting to the upright post. And the vertical column is kept vertical by adjusting the length of the anchor rope. And further, various precise operations such as precise drilling sampling and various in-situ test operations with high stability requirements under the environment with the water depth of 100m are smoothly realized.

The above prior art solutions have the following drawbacks: the upright post is formed by splicing a plurality of upright posts, so that the number of the upright posts needs to be increased or reduced frequently in a water area with large fluctuation tide and high speed, and a large amount of operation time is consumed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sea area drilling rig, have the convenience and cause the effect that influences the probability at the height that reduces the sea level to drilling work not enough to prior art exists.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a sea area drilling rig, still includes the second sleeve pipe, the one end of second sleeve pipe is fixed in drilling platform, drilling platform go up seted up with the through-hole of second sleeve pipe intercommunication, the one end of second sleeve pipe is fixed in drilling platform, the second sleeve pipe is kept away from drilling platform's pot head is located first sleeve pipe, the end fixing of second sleeve pipe has solid fixed ring, drilling platform is in confession has been seted up in through-hole department gu fixed ring's spacing groove, drilling platform is last to have with gu fixed ring compresses tightly the limit structure of spacing groove.

By adopting the technical scheme, when tide rises, the drilling platform vertically slides upwards relative to the first casing pipe, the second casing pipe is relatively fixed with the drilling platform, the end part of the first casing pipe close to the second casing pipe slides downwards along the length direction of the second casing pipe, and the number of the fixed casing pipes does not need to be changed; when the tide returns, the drilling platform vertically slides downwards relative to the first casing pipe, and the first casing pipe vertically slides upwards along the length direction of the second casing pipe, so that the probability that the first casing pipe extends out of the drilling platform is reduced; the provision of the second casing reduces the probability that changes in the elevation of the sea level will have an effect on the drilling operation. The probability that the end of the second casing pipe falls off from the drilling platform is reduced through the fixing ring, and the probability that the second casing pipe and the drilling platform move relatively is reduced through the limiting structure.

The utility model discloses further set up as, limit structure including articulate in drilling platform's limiting plate, set up in drilling platform's screw hole, set up in fixed orifices and locking bolt on the limiting plate, locking bolt runs through the fixed orifices and with screw hole threaded connection will the limiting plate is fixed drilling platform department.

Through adopting above-mentioned technical scheme, the limiting plate articulates in drilling platform has made things convenient for the fixed mounting of second pipeline on drilling platform, and when solid fixed ring installed at the spacing groove, the limiting plate compresses tightly solid fixed ring in spacing groove department and realized limiting plate and drilling platform's relatively fixed with the limiting plate is fixed through the locking bolt, has realized the relatively fixed between drilling platform and second sleeve and the drilling platform through the limiting plate.

The utility model discloses further set up to, the rubber ring has all been laid at solid fixed ring's both ends.

Through adopting above-mentioned technical scheme, laying of rubber ring has reduced the probability that solid fixed ring's both ends face respectively with the direct butt of drilling platform and limiting plate, has reduced the buffering of solid fixed ring department, has reduced solid fixed ring and has produced the probability of wearing and tearing.

The utility model discloses further set up to, the spout has been seted up along the direction of height of its inboard wall to the second sleeve pipe, first sheathed tube lateral wall have with spout one-to-one and follow the draw runner that the spout slided.

Through adopting above-mentioned technical scheme, the setting up of spout has reduced the probability that takes place relative horizontal slip between first sleeve pipe and the second sleeve pipe for the drilling rod is when running through first sleeve pipe and second sleeve pipe, and the setting up of spout has also reduced the butt area between first sleeve pipe and the second sleeve pipe simultaneously, has made things convenient for first sleeve pipe at the slip of second sleeve pipe department.

The utility model discloses further set up to, at least two have been seted up on the second sleeve pipe the spout, it is a plurality of the spout is followed the even interval arrangement of inside wall circumference of second pipeline.

Through adopting above-mentioned technical scheme, the probability that the draw runner takes place the damage has been reduced in setting up of a plurality of spouts.

The utility model discloses further set up to, the spout with the cross section of draw runner all is semi-circular.

Through adopting above-mentioned technical scheme, the equal semicircular in shape in cross section of spout and draw runner has reduced the stress concentration of draw runner and spout department, has reduced the probability that the draw runner takes place to damage.

The utility model discloses further set up to, the second sleeve pipe is in the both sides of spout tip all are provided with leads the cambered surface, every adjacent two it is linked together to lead the cambered surface, it sets up to lead the cambered surface the second sleeve pipe is close to first sheathed tube one end.

Through adopting above-mentioned technical scheme, it is more convenient when making first sleeve pipe insert the second sleeve pipe to lead setting up of cambered surface, has reduced the degree of difficulty that first sleeve pipe inserted the second sleeve pipe, and adjacent two lead the cambered surface and be linked together and make first sleeve pipe when inserting the second sleeve pipe, and the second sleeve pipe is rotatory naturally for the draw runner is more convenient when the spout is gone into to the card.

The utility model discloses further set up to, be equipped with many protection ropes on the drilling platform, a plurality of protection ropes are followed the even interval arrangement of drilling platform circumference, protection rope one end connect in the rig floor platform, the other end connect in first sleeve pipe, the confession has been seted up to the lateral wall on the first sleeve pipe the installation annular of protection rope installation.

By adopting the technical scheme, the sea has stormy waves, the first sleeve and the exploration platform are provided with pretightening force due to the arrangement of the protection rope, the probability of deviation of the first sleeve under the impact of water flow is reduced, the arrangement of the installation ring groove on the first sleeve facilitates the installation of the protection rope, and the probability of slippage of the first sleeve at the first sleeve is reduced.

The utility model discloses further set up to, drilling platform is last install with the fixed pulley of protection rope one-to-one.

Through adopting above-mentioned technical scheme, the extending direction of protection rope has been changed in the setting of fixed pulley, has reduced the probability that takes place wearing and tearing and lead to the protection rope fracture between protection rope and the drilling platform.

To sum up, the utility model discloses following beneficial effect has:

1. a sea area drilling device comprises a drilling platform, a first sleeve and a second sleeve, wherein the drilling platform vertically slides upwards relative to the first sleeve in the flood tide, the second sleeve is relatively fixed with the drilling platform, the end part of the first sleeve close to the second sleeve slides downwards along the length direction of the second sleeve, and the number of the fixed sleeves does not need to be changed; when the tide returns, the drilling platform vertically slides downwards relative to the first casing pipe, and the first casing pipe vertically slides upwards along the length direction of the second casing pipe, so that the probability that the fixed casing pipe extends out of the drilling platform is reduced; the arrangement of the second casing pipe reduces the probability that the height change of the sea level affects the drilling work;

2. the arrangement of the sliding groove reduces the probability of relative horizontal sliding between the first sleeve and the second sleeve, so that when the drill rod penetrates through the first sleeve and the second sleeve, the arrangement of the sliding groove also reduces the abutting area between the first sleeve and the second sleeve, and the sliding of the first sleeve at the second sleeve is facilitated;

3. the arrangement of the protection rope enables a pretightening force to be formed between the first sleeve and the exploration platform, the probability that the first sleeve deviates under the impact of water flow is reduced, the arrangement of the mounting ring groove on the first sleeve facilitates the mounting of the protection rope, and the probability that the first sleeve slides at the first sleeve is reduced.

Drawings

Fig. 1 is a schematic view of the overall cross-sectional structure of the present invention;

FIG. 2 is a schematic illustration of an explosive structure at a restriction plate;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;

FIG. 4 is a schematic structural view of a first bushing;

FIG. 5 is a schematic structural view of a second sleeve;

FIG. 6 is a schematic cross-sectional view of the first sleeve;

fig. 7 is a partially enlarged schematic view of a portion B in fig. 6.

In the figure, 1, a drilling platform; 11. a through hole; 12. a limiting groove; 13. a hinged seat; 131. hinging a shaft; 14. a threaded hole; 141. a locking bolt; 15. a fixed pulley; 16. a protective rope; 2. a first sleeve; 21. mounting a ring groove; 22. a slide bar; 3. a second sleeve; 31. a fixing ring; 311. a rubber ring; 32. a chute; 321. a guide arc surface; 4. a limiting plate; 41. a fixing hole; 42. a hinge portion.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a sea area drilling rig, including being located offshore drilling platform 1, first sleeve 2 and second sleeve 3, drilling platform 1 is the floating platform.

Referring to fig. 2, a through hole 11 is formed in the drilling platform 1, a limiting groove 12 is formed in the drilling platform 1 at the through hole 11, and a limiting structure is arranged on the drilling platform 1. The limiting structure comprises a limiting plate 4, a threaded hole 14 formed in the drilling platform 1, a fixing hole 41 formed in the limiting plate 4 and a locking bolt 141 in threaded connection with the threaded hole 14.

Referring to fig. 2 and 3, the limit plate 4 is installed on the drilling platform 1, the drilling platform 1 has a hinge base 13, a hinge shaft 131 is installed in the hinge base 13, the limit plate 4 has a hinge portion 42 at a position corresponding to the hinge base 13, the hinge shaft 131 penetrates the hinge base 13 and the hinge portion 42 to hinge the limit plate 4 on the drilling platform 1, and when the limit plate 4 is rotated to be attached to the drilling platform 1, the limit plate 4 covers the limit groove 12.

Referring to fig. 1 and 2, when the limiting plate 4 is attached to the drilling platform 1, the fixing hole 41 is opposite to the threaded hole 14, and the locking bolt 141 penetrates through the fixing hole 41 and is in threaded connection with the threaded hole 14 to press the limiting plate 4 on the drilling platform 1, so that the probability of rotation of the limiting plate 4 is reduced.

Referring to fig. 1 and 2, a plurality of fixed pulleys 15 are arranged on a drilling platform 1, the fixed pulleys 15 are uniformly arranged at intervals along the circumferential direction of the drilling platform 1, protection ropes 16 corresponding to the fixed pulleys 15 one to one are arranged on the drilling platform 1, one end of each protection rope 16 is fixed on the drilling platform 1, the other end of each protection rope is fixed on a first casing pipe 2, each protection rope 16 penetrates through the fixed pulleys 15, the change of the stress direction of each protection rope 16 is realized due to the arrangement of the fixed pulleys 15, the probability that the protection ropes 16 rub with the drilling platform 1 is reduced, pretightening force is provided between the first casing pipe 2 and the drilling platform 1 due to the arrangement of the protection ropes 16, and the probability that the first casing pipe inclines under the impact of water flow impact.

Referring to fig. 1 and 4, the first casing 2 is vertically inserted into the seabed, the first casing 2 is circumferentially provided with an installation ring groove 21, the protection rope 16 is wound on the installation ring groove 21 to realize the fixed installation of the protection rope 16 on the first casing 2, and the probability that the protection rope 16 slides along the length direction of the first casing 2 is reduced. In this embodiment, the first casing is inserted into the sea floor to a depth of 5 meters.

Referring to fig. 4, the outer side wall of the first sleeve 2 has at least two sliding bars 22, a plurality of sliding bars 22 are uniformly arranged along the circumference of the first sleeve 2 at intervals, the cross section of the sliding bar 22 is semicircular, and the sliding bar 22 is arranged along the height direction of the first sleeve 2. In the present embodiment, a total of three slides 22 are provided.

Referring to fig. 5 and 6, the second casing 3 is fixed to the drilling platform 1, and one end of the second casing 3 has a fixing ring 31, and when the second casing 3 passes through the through hole 11, the fixing ring 31 is located in the limiting groove 12.

Referring to fig. 5 and 7, rubber rings 311 are respectively paved on the top surface and the bottom surface of the fixing ring 31, and when the fixing ring 31 is clamped in the limiting groove 12, the drilling platform 1 and the limiting plate 4 are respectively abutted against the two rubber rings 311.

Referring to fig. 5 and 6, the bottom of the second sleeve 3 is provided with a sliding groove 32 for the sliding strip 22 to slide, the sliding groove 32 is formed along the height direction of the second sleeve 3, in order to make the sliding strip 22 more convenient to clip into the sliding groove 32, the second sleeve is provided with guiding arc surfaces 321 on two sides of the end of the sliding groove 32, and every two adjacent guiding arc surfaces 321 are communicated. The guiding arc surface 321 is arranged at one end of the second casing 3 close to the first casing 2.

The implementation principle of the embodiment is as follows:

1. during flood tide, the drilling platform 1 vertically slides upwards relative to the first casing pipe 2, the second casing pipe 3 is relatively fixed with the drilling platform 1, the end part of the first casing pipe 2 close to the second casing pipe 3 slides downwards along the length direction of the second casing pipe 3, and the number of the fixed casing pipes does not need to be changed;

2. when the tide is ebb, the drilling platform 1 slides downwards vertically relative to the first casing 2, and the first casing 2 slides upwards vertically along the length direction of the second casing 3, so that the probability that the fixed casing extends out of the drilling platform 1 is reduced; the arrangement of the second casing 3 reduces the probability that the height change of the sea level will affect the drilling work;

3. the arrangement of the protection rope 16 enables a pretightening force to be formed between the first sleeve 2 and the exploration platform, the probability that the first sleeve deviates under the impact of water flow is reduced, the arrangement of the installation ring groove 21 on the first sleeve 2 facilitates the installation of the protection rope 16, and the probability that the first sleeve 2 slides at the first sleeve is reduced.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A marine drilling installation comprising a drilling platform (1) and a first casing (2), characterized in that: still include second sleeve pipe (3), the one end of second sleeve pipe (3) is fixed in drilling platform (1), drilling platform (1) go up set up with through-hole (11) of second sleeve pipe (3) intercommunication, second sleeve pipe (3) are kept away from the pot head of drilling platform (1) is located first sleeve pipe (2), the end fixing of second sleeve pipe (3) has solid fixed ring (31), drilling platform (1) is in the confession has been seted up in through-hole (11) department spacing groove (12) that solid fixed ring (31) were placed, drilling platform (1) are gone up have with gu fixed ring (31) compress tightly the limit structure of spacing groove (12).

2. An offshore drilling installation according to claim 1, wherein: the limiting structure comprises a limiting plate (4) hinged to the drilling platform (1), a threaded hole (14) formed in the drilling platform (1), a fixing hole (41) formed in the limiting plate (4) and a locking bolt (141), wherein the locking bolt (141) penetrates through the fixing hole (41) and is in threaded connection with the threaded hole (14) to fix the limiting plate (4) at the drilling platform (1).

3. An offshore drilling installation according to claim 2, wherein: rubber rings (311) are paved at two ends of the fixing ring (31).

4. A marine drilling installation according to claim 3, wherein: the second sleeve (3) is provided with a sliding groove (32) along the height direction of the inner side wall of the second sleeve, and the outer side wall of the first sleeve (2) is provided with sliding strips (22) which correspond to the sliding groove (32) in a one-to-one manner and slide along the sliding groove (32).

5. An offshore drilling installation according to claim 4, wherein: the second sleeve (3) is provided with at least two sliding grooves (32), and the sliding grooves (32) are uniformly arranged at intervals along the circumferential direction of the inner side wall of the second sleeve (3).

6. An offshore drilling installation according to claim 5, wherein: the cross sections of the sliding groove (32) and the sliding strip (22) are semicircular.

7. An offshore drilling installation according to claim 6, wherein: the two sides of the end part of the sliding groove (32) of the second sleeve (3) are respectively provided with a guide arc surface (321), every two adjacent guide arc surfaces (321) are communicated, and the guide arc surfaces (321) are arranged at one end, close to the first sleeve (2), of the second sleeve (3).

8. An offshore drilling installation according to claim 7, wherein: be equipped with many protection ropes (16) on drilling platform (1), a plurality of protection ropes (16) are followed drilling platform (1) circumference is even interval arrangement, protection rope (16) one end connect in drilling platform, the other end connect in first sleeve pipe (2), the confession has been seted up to the lateral wall on first sleeve pipe (2) the mounting ring groove (21) of protection rope (16) installation.

9. An offshore drilling installation according to claim 8, wherein: and fixed pulleys (15) which correspond to the protection ropes (16) one to one are arranged on the drilling platform (1).