CN217813385U - Annular blowout preventer for petroleum and natural gas drilling - Google Patents

Abstract

The utility model discloses an oil, natural gas well drilling are with annular preventer, including annular preventer body, annular preventer body includes that preventer casing and activity set up the upper cover at preventer casing top, the equal fixedly connected with integral hoisting ring in connector both sides of upper cover, the equal fixedly connected with locating lever in four sides in top of preventer casing, upper cover movable sleeve establish on four locating levers, and first draw-in groove has all been seted up at one side top that two relative locating levers are close to each other. The utility model discloses be convenient for remove the card solid state automatically when utilizing split hoist and mount ring to hang the lift upper cover, and be convenient for clamp the lock solid with its and preventer shell automatically when putting the upper cover down, through the mode that utilizes the automatic unblock of lift power and clamp when hoist and mount split and transfer, need not personnel and carry out the lock solid work alone, simplified operating procedure, the simple operation, labour saving and time saving makes things convenient for the subsequent quick maintenance work of tearing open the group of personnel, and can wholly hang and rise.

Description

Annular blowout preventer for petroleum and natural gas drilling

Technical Field

The utility model relates to an annular preventer technical field especially relates to an oil, annular preventer for natural gas drilling.

Background

The annular blowout preventer is a reliable blowout preventer commonly used in oil and natural gas drilling work, a large gate provided with a gate plate type blowout preventer is usually used, a sealed annular space can be formed between a pipe column and a shaft during operation, and the annular blowout preventer can independently complete well sealing under the condition that no pipe column exists in a well, so that the occurrence of well kick or blowout accidents is reduced; like the existing annular blowout preventer with model number FH35-70, the annular blowout preventer is a blowout preventer specially used for oil and gas drilling and consists of a shell, an upper cover fixed on the top of the shell through bolts and a ram blowout prevention structure arranged inside the shell;

the annular blowout preventer used for oil and natural gas drilling at present has the defects that an upper cover and a shell are directly connected through a plurality of bolts, the disassembly and the assembly are complicated and time-consuming, the bolts are tightened and disassembled, time and labor are wasted, the annular blowout preventer is inconvenient and inconvenient, the disassembly and assembly efficiency is low, the subsequent quick disassembly and assembly maintenance work is inconvenient, and the phenomenon is improved, so that the annular blowout preventer for oil and natural gas drilling is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide an annular preventer for oil, natural gas drilling with the loaded down with trivial details time and energy consuming of upper cover and the casing dismouting of solving the current annular preventer that proposes in the above-mentioned background art, the lower problem of dismouting efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an annular blowout preventer for oil and gas drilling comprises an annular blowout preventer body, wherein the model of the annular blowout preventer body is FH35-70, and the annular blowout preventer is special for oil and gas drilling;

the top of the upper cover is fixedly connected with an annular seat which is movably clamped and sleeved on the four positioning rods, four sides of the bottom of the annular seat are respectively provided with a rectangular groove, an elastic clamping component is movably clamped and fixed in a first clamping groove and used for clamping and locking the positioning rods, the upper cover and the shell of the blowout preventer can be clamped and fixed, one end, close to each other, of each two opposite elastic clamping components is fixedly connected with the inner wall, close to each other, of one side of each two corresponding rectangular grooves, the top of the top, close to each other, of each two opposite elastic clamping components is fixedly connected with a soft steel wire rope, the inner wall, close to each other, of one side of each two corresponding rectangular grooves is rotatably provided with a fixed pulley, the top end of each soft steel wire rope passes through the bottom of the corresponding fixed pulley and is fixedly provided with a guide limiting component which is embedded and fixed on the inner wall of the top of the rectangular grooves, the top ends of the four guide limiting components are fixedly connected with the same annular plate, the four guide limiting components are used for the annular plate to synchronously drive the four soft steel wire ropes to move upwards, and two sides of the top of the annular plate are fixedly connected with a hoisting ring.

Preferably, the elastic clamping assembly comprises clamping blocks movably clamped in the corresponding first clamping grooves, one ends, close to each other, of the two opposite clamping blocks extend into the corresponding rectangular grooves respectively, the annular seat is sleeved on the four clamping blocks in a sliding mode, transverse guide rods are fixedly connected to the inner walls, close to each other, of the two opposite rectangular grooves respectively, the clamping blocks are sleeved on the corresponding transverse guide rods in a sliding mode, springs are fixedly connected between the ends, close to each other, of the two opposite clamping blocks and the inner walls, close to each other, of the two corresponding rectangular grooves respectively, the springs are movably sleeved on the corresponding transverse guide rods, and the tops, close to each other, of the two opposite clamping blocks are fixedly installed with the ends, far away from each other, of the two corresponding soft steel wire ropes respectively.

Preferably, the spacing subassembly of direction is including inlaying the pipe guide of dress fixing on the rectangular channel top inner wall that corresponds, and the intraductal slip cap of pipe guide is equipped with the guide bar, and the bottom of guide bar extends to the rectangular channel that corresponds and the spacing kicking block of fixedly connected with, the bottom of spacing kicking block and the top fixed mounting of the soft wire rope who corresponds, and spacing kicking block is located the below of the pipe guide that corresponds and cooperatees with the pipe guide, the top of guide bar extend to the top of annular seat and with the bottom fixed connection of annular plate.

Preferably, the four sides of the bottom of the upper cover are provided with positioning through holes, and the inner walls of the positioning through holes are movably sleeved with the outer sides of the corresponding positioning rods.

Preferably, the inner wall of one side, far away from each other, of the two opposite rectangular grooves is provided with a rectangular through hole, and the inner wall of the rectangular through hole is sleeved with the outer side of the corresponding clamping block in a sliding mode.

Preferably, the guide grooves are formed in the mutually close sides of the two opposite clamping blocks, and the inner walls of the guide grooves are sleeved with the outer sides of the corresponding transverse guide rods in a sliding mode.

Preferably, the distance between the top of the limiting top block and the bottom end of the corresponding guide pipe is larger than the depth of the first clamping groove.

Preferably, the four sides of the bottom of the annular seat are provided with second clamping grooves, and the inner walls of the second clamping grooves are movably sleeved with the outer sides of the corresponding positioning rods.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the annular plate is lifted by the aid of the split lifting ring, the annular seat, the guide limiting assembly, the elastic clamping assembly, the soft steel wire rope and the first clamping groove, the elastic clamping assembly can be pulled by the guide limiting assembly to release the clamping state of the positioning rod, the annular seat and the upper cover are further lifted, the split is realized, the clamping block can be automatically driven by the aid of elasticity of the elastic clamping assembly to clamp and lock the positioning rod when the upper cover is placed downwards and the lifting force is released, the upper cover and the blowout preventer shell are clamped and locked, and the upper cover and the blowout preventer shell are automatically unlocked and clamped by the aid of the lifting force when the upper cover is placed downwards and released, so that independent locking work of personnel is not needed, operation steps are simplified, operation is convenient and fast, and disassembly and assembly efficiency is improved;

2. through the integral hoisting ring that sets up, can carry out integral hoisting after the equipment is fixed and promote or transfer, make things convenient for subsequent integral hoisting operation.

The utility model discloses be convenient for remove the card solid state automatically when utilizing split hoist and mount ring to hang the lift upper cover, and be convenient for clamp the lock solid with its and preventer shell automatically when putting the upper cover down, through the mode that utilizes the automatic unblock of lift power and clamp when hoist and mount split and transfer, need not personnel and carry out the lock solid work alone, simplified operating procedure, the simple operation, labour saving and time saving makes things convenient for the subsequent quick maintenance work of tearing open the group of personnel, and can wholly hang and rise.

Drawings

Fig. 1 is a schematic structural diagram of an annular blowout preventer for oil and gas drilling according to the present invention;

FIG. 2 is a schematic partial cross-sectional structural view of FIG. 1;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

In the figure: 100. a blowout preventer housing; 101. an upper cover; 1. an annular seat; 2. positioning a rod; 3. a first card slot; 4. a second card slot; 5. a rectangular groove; 6. a clamping block; 7. a transverse guide rod; 8. a spring; 9. a soft wire rope; 10. a fixed pulley; 11. a limiting top block; 12. a guide bar; 13. a guide tube; 14. an annular plate; 15. disassembling the hoisting ring; 16. positioning and perforating; 17. and (6) integrally hoisting the ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, an annular blowout preventer for oil and gas drilling comprises an annular blowout preventer body, wherein the model of the annular blowout preventer body is FH35-70, and the annular blowout preventer is a special annular blowout preventer for oil and gas drilling, is an object in the prior mature technology and is applied to the field of blowout prevention for oil and gas drilling, so that the blowout prevention principle of the annular blowout preventer body containing the belt is not further explained;

the annular blowout preventer body comprises a blowout preventer shell 100 and an upper cover 101 movably arranged at the top of the blowout preventer shell 100, wherein the two sides of a connector of the upper cover 101 are fixedly connected with an integral hoisting ring 17, the four sides of the top of the blowout preventer shell 100 are fixedly connected with positioning rods 2, the upper cover 101 is movably sleeved on the four positioning rods 2, the four sides of the bottom of the upper cover 101 are respectively provided with a positioning perforation 16, the inner wall of each positioning perforation 16 is movably sleeved with the outer side of the corresponding positioning rod 2, so that the positioning effect of the positioning rods 2 can be achieved, the positioning effect of the upper cover 101 can be achieved, and the top of one side, close to each other, of the two opposite positioning rods 2 is provided with a first clamping groove 3;

the top of the upper cover 101 is fixedly connected with an annular seat 1 which is movably sleeved on four positioning rods 2, wherein four sides of the bottom of the annular seat 1 are respectively provided with a second clamping groove 4, the inner wall of the second clamping groove 4 is movably sleeved with the outer side of the corresponding positioning rod 2, four sides of the bottom of the annular seat 1 are respectively provided with a rectangular groove 5, an elastic clamping component is movably clamped in the first clamping groove 3 and is used for clamping and locking the positioning rod 2, the mutually close end of the two opposite elastic clamping components is respectively and fixedly connected with the inner wall of the mutually close side of the two corresponding rectangular grooves 5, the top of the mutually close side of the two opposite elastic clamping components is respectively and fixedly connected with a soft steel wire rope 9, wherein the elastic clamping component comprises a clamping block 6 which is movably clamped in the corresponding first clamping groove 3, the mutually close end of the two opposite clamping blocks 6 is respectively and extends into the corresponding rectangular groove 5, the inner wall of the mutually close side of the two opposite rectangular grooves 5 is respectively provided with a through hole which is communicated with the corresponding rectangular clamping block 4, the through hole is sleeved with the outer side of the corresponding clamping block 6, so that the sliding ends of the two opposite rectangular grooves 6 are sleeved with the sliding guide rods 7, and are respectively sleeved on the corresponding transverse grooves 7, the two corresponding transverse grooves, the sliding guide rods 7 of the two corresponding clamping blocks 6, and are respectively sleeved on the corresponding transverse grooves, and are connected with the corresponding transverse grooves 7 of the corresponding transverse grooves of the corresponding transverse guide rods, and are sleeved on the two transverse grooves 7 of the corresponding rectangular grooves 6, and are connected with the corresponding transverse grooves, and are connected with the corresponding transverse guide rod 7 of the corresponding clamping blocks 6, the springs 8 are movably sleeved on the corresponding transverse guide rods 7, the tops of the sides, close to each other, of the two opposite clamping blocks 6 are fixedly installed with the ends, far away from each other, of the two corresponding soft steel wire ropes 9 respectively, and the arranged clamping blocks 6, the transverse guide rods 7 and the springs 8 are matched and can clamp and lock the positioning rods 2, so that the upper cover 101 and the blowout preventer shell 100 can be clamped and locked;

the inner wall of one side, close to each other, of each of the two opposite rectangular grooves 5 is rotatably provided with a fixed pulley 10, the top ends of the flexible steel wire ropes 9 pass through the bottom of the corresponding fixed pulley 10 and are fixedly provided with guide limit components embedded and fixed on the inner wall of the top of the rectangular groove 5, the top ends of the four guide limit components are fixedly connected with a same annular plate 14, the four guide limit components are arranged and used for synchronously driving the four flexible steel wire ropes 9 to move upwards through the annular plate 14, both sides of the top of the annular plate 14 are fixedly connected with split hoisting rings 15, each guide limit component comprises a guide pipe 13 embedded and fixed on the inner wall of the top of the corresponding rectangular groove 5, the inner wall of the top of the rectangular groove 5 is provided with embedded holes welded and fixed with the outer sides of the corresponding guide pipes 13, the guide pipes 13 are embedded and fixed on the inner wall of the top of the corresponding rectangular groove 5 through the embedded holes, and guide rods 12 are sleeved in the guide pipes 13 in a sliding manner, the bottom ends of the guide rods 12 extend into the corresponding rectangular grooves 5 and are fixedly connected with limiting top blocks 11, the bottom of each limiting top block 11 is fixedly installed with the top end of the corresponding soft steel wire rope 9, the limiting top blocks 11 are located below the corresponding guide pipes 13 and are matched with the guide pipes 13, the distance between the top portions of the limiting top blocks 11 and the bottom ends of the corresponding guide pipes 13 is larger than the depth of the first clamping grooves 3, so that the soft steel wire ropes 9 are used for driving the clamping blocks 6 to be separated from the first clamping grooves 3 when the limiting top blocks 11 move upwards to be in contact with the guide pipes 13 conveniently, the top ends of the guide rods 12 extend to the upper portion of the annular seat 1 and are fixedly connected with the bottom portions of the annular plates 14, the guide pipes 13, the guide rods 12 and the limiting top blocks 11 are matched with the annular plates 14, the annular plates 14 can conveniently drive the four soft steel wire ropes 9 to move upwards synchronously through the four guide rods 12 and the four limiting top blocks 11, with this make things convenient for and utilize four soft wire rope 9 synchro-driven fixture blocks 6 to carry out the displacement unblock, in order to play the effect of convenient quick detach, the utility model discloses be convenient for remove the card solid state automatically when utilizing split hoisting ring 15 to hoist upper cover 101, and be convenient for clamp the lock solid with its and preventer casing 100 automatically when putting upper cover 101 down, through the mode that utilizes the automatic unblock of hoisting power and clamp when hoist and mount split and transfer, need not personnel and carry out the lock solid work alone, the operating is simplified step, the simple operation, time saving and labor saving makes things convenient for the subsequent quick maintenance work of disassembling and assembling of personnel, and can wholly hoist and rise.

The working principle is as follows: when the upper cover 101 and the blowout preventer shell 100 are disassembled, two disassembling hoisting rings 15 are hoisted upwards by using external hoisting equipment, the two disassembling hoisting rings 15 drive the annular plate 14 to move upwards, the annular plate 14 drives the four guide rods 12 to respectively slide upwards in the corresponding guide pipes 13, the guide rods 12 drive the corresponding limiting ejector blocks 11 to move upwards, the limiting ejector blocks 11 drive the corresponding soft steel wire ropes 9 to slide at the bottoms of the fixed pulleys 10, the soft steel wire ropes 9 drive the corresponding fixture blocks 6 to separate from the first clamp grooves 3, the springs 8 are compressed, the clamping state is released, when the limiting ejector blocks 11 move upwards to be in contact with the bottom ends of the corresponding guide pipes 13, the continuous limiting ejector blocks 11 extrude and lift the guide pipes 13, the four guide pipes 13 drive the annular seat 1 to move upwards, the annular seat 1 drives the upper cover 101 to separate from the four positioning rods 2 upwards, the upper cover 101 is separated from the blowout preventer shell 100, the disassembly is completed, and the mode of automatically releasing the clamping of the positioning rods 2 when the upper cover 101 is lifted, so that the lifting force can be automatically and the disassembly can be conveniently and synchronously realized when the lifting force is lifted;

when the installation is carried out, the two split hoisting rings 15 are slowly lowered to gradually lower the upper cover 101, the upper cover 101 is downwards clamped and sleeved on the four positioning rods 2 and drives the annular seat 1 to be clamped and sleeved on the four positioning rods 2 through the four second clamping grooves 4, when the upper cover 101 moves downwards to be contacted with the top of the blowout preventer shell 100, the upper cover 101 is shielded and limited by the upper cover and does not move downwards, the split hoisting rings 15 which move downwards continuously at the moment drive the annular plate 14 to move downwards, the annular plate 14 drives the four limit jacking blocks 11 to release the tensile force on the four soft steel wire ropes 9 downwards through the four guide rods 12, at the moment, the elastic force of the spring 8 in a compressed state drives the corresponding clamping blocks 6 to rebound and clamp into the first clamping grooves 3, the positioning rods 2 are clamped and fixed, and the upper cover 101 and the blowout preventer shell 100 are clamped and fixed, the installation is completed, so that the clamping and the upper cover 101 and the blowout preventer shell 100 can be automatically locked and locked when the upper cover 101 is lowered, a person does not need to independently work, and the operation is convenient;

and when the integral hoisting is needed after the assembly clamp is fixed, the two integral hoisting rings 17 can be utilized for integral hoisting lifting or lowering.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (8)

1. An annular blowout preventer for petroleum and natural gas drilling comprises an annular blowout preventer body, wherein the annular blowout preventer body comprises a blowout preventer shell (100) and an upper cover (101) movably arranged at the top of the blowout preventer shell (100), and is characterized in that two sides of a connector of the upper cover (101) are fixedly connected with integral hoisting rings (17), four sides of the top of the blowout preventer shell (100) are fixedly connected with positioning rods (2), the upper cover (101) is movably sleeved on the four positioning rods (2), and the tops of the two opposite positioning rods (2) close to each other are provided with first clamping grooves (3);

the top fixedly connected with activity clamping sleeve of upper cover (101) is annular seat (1) on four locating levers (2), rectangular channel (5) have all been seted up to four sides in the bottom of annular seat (1), the activity clamping subassembly in first draw-in groove (3), two relative elasticity clamps the one end that the subassembly is close to each other and is close to one side inner wall fixed connection each other with two corresponding rectangular channels (5) respectively, two relative elasticity clamps the equal fixedly connected with soft wire rope (9) in one side top that the subassembly is close to each other, all rotate on the one side inner wall that two relative rectangular channels (5) are close to each other and install fixed pulley (10), the bottom and the fixed mounting that correspond fixed pulley (10) are walked around on the top of soft wire rope (9) inlay the dress and fix the direction spacing subassembly on rectangular channel (5) top inner wall, the same annular slab (14) of top fixedly connected with of four direction spacing subassemblies, the equal fixedly connected with split hoisting ring (15) in top both sides of annular slab (14).

2. The annular blowout preventer for oil and gas drilling according to claim 1, wherein the elastic clamping assembly comprises clamping blocks (6) movably clamped in the corresponding first clamping grooves (3), the ends, close to each other, of the two opposite clamping blocks (6) extend into the corresponding rectangular grooves (5) respectively, the annular seat (1) is slidably sleeved on the four clamping blocks (6), transverse guide rods (7) are fixedly connected to the inner walls, close to each other, of the two opposite rectangular grooves (5), the clamping blocks (6) are slidably sleeved on the corresponding transverse guide rods (7), springs (8) are fixedly connected between the ends, close to each other, of the two opposite clamping blocks (6) and the inner walls, close to each other, of the two corresponding rectangular grooves (5), the springs (8) are movably sleeved on the corresponding transverse guide rods (7), and the tops, close to each other, of the two opposite clamping blocks (6) are fixedly installed with the ends, far away from each other, of the two corresponding soft steel wire ropes (9).

3. The annular blowout preventer for oil and gas drilling according to claim 1, wherein the guiding and limiting assembly comprises a guide pipe (13) which is fixedly embedded on the inner wall of the top of the corresponding rectangular groove (5), a guide rod (12) is sleeved in the guide pipe (13) in a sliding manner, the bottom end of the guide rod (12) extends into the corresponding rectangular groove (5) and is fixedly connected with a limiting top block (11), the bottom of the limiting top block (11) is fixedly mounted with the top end of the corresponding flexible steel wire rope (9), the limiting top block (11) is positioned below the corresponding guide pipe (13) and is matched with the guide pipe (13), and the top end of the guide rod (12) extends to the upper part of the annular seat (1) and is fixedly connected with the bottom of the annular plate (14).

4. The annular blowout preventer for oil and gas drilling according to claim 1, wherein the four sides of the bottom of the upper cover (101) are provided with positioning through holes (16), and the inner walls of the positioning through holes (16) are movably sleeved with the outer sides of the corresponding positioning rods (2).

5. The annular blowout preventer for oil and gas drilling according to claim 2, wherein the inner walls of the two opposite rectangular grooves (5) at the sides far away from each other are provided with rectangular through holes, and the inner walls of the rectangular through holes are slidably sleeved with the outer sides of the corresponding clamping blocks (6).

6. The annular blowout preventer as claimed in claim 2, wherein the two opposite clamping blocks (6) are provided with guide grooves on the sides close to each other, and the inner walls of the guide grooves are slidably sleeved with the outer sides of the corresponding transverse guide rods (7).

7. The annular blowout preventer according to claim 3, wherein the distance between the top of the limit top block (11) and the bottom end of the corresponding guide pipe (13) is greater than the depth of the first clamping groove (3).

8. The annular blowout preventer for oil and gas drilling according to claim 1, wherein the four sides of the bottom of the annular seat (1) are provided with second clamping grooves (4), and the inner walls of the second clamping grooves (4) are movably sleeved with the outer sides of the corresponding positioning rods (2).

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