CN215718601U

CN215718601U - Mud blocking umbrella

Info

Publication number: CN215718601U
Application number: CN202121666859.8U
Authority: CN
Inventors: 李元化; 赵润琦; 胡毅; 杨程程; 李世瑜; 董维哲
Original assignee: Sinopec Oilfield Service Corp; Sinopec Zhongyuan Petroleum Engineering Co Ltd; No 3 Drilling Co of Sinopec Zhongyuan Petroleum Engineering Co Ltd
Current assignee: Sinopec Oilfield Service Corp; Sinopec Zhongyuan Petroleum Engineering Co Ltd; No 3 Drilling Co of Sinopec Zhongyuan Petroleum Engineering Co Ltd
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2022-02-01
Anticipated expiration: 2031-07-21

Abstract

The utility model discloses a mud blocking umbrella, which comprises a fixed part, a movable part and a blowing component, wherein the fixed part is arranged on the movable part; the fixed part is sat and is adorned on the horn mouth of blowout preventer, and the collapsible top edge of installing at the fixed part of movable part for enlarge and keep off the mud area, sweep the unit mount on the fixed part, be used for sweeping the drilling fluid on the terminal surface that the fixed part deviates from the horn mouth. The mud-blocking umbrella is arranged on the bell mouth of the well sealing device through the fixing part, so that the disassembly and the assembly are convenient. With the collapsible installation of movable part in the top edge of fixed part, on the one hand, enlarged the fender mud area, on the other hand when moving, folds the movable part, has avoided the deformation problem that fender mud umbrella size leads to greatly. In addition, sweep the unit mount on the fixed part, can sweep the drilling fluid on the terminal surface that the fixed part deviates from the horn mouth, realized the timely processing to the drilling fluid on the fender mud umbrella.

Description

Mud blocking umbrella

Technical Field

The utility model relates to the technical field of drilling engineering machinery, in particular to a mud blocking umbrella.

Background

In the drilling construction, after the well is fixed by opening the inlet ruler, well mouth devices such as a well plugging device need to be installed, and the drilling fluid in the well flows into the elevated tank and the slurry circulation tank from the bell mouth fluid-discharge pipe. In order to recover the drilling fluid sprayed by the drill floor into the well without scattering below the drill floor and polluting the wellhead device and the ground below the drill floor, a mud blocking umbrella is arranged at a proper position of a bell mouth on the blowout preventer so as to meet the requirement of environmental protection.

However, the mud blocking umbrella used on site is made of two halves of steel, is funnel-shaped, has a large integral area, needs the two halves to be buckled on the outer wall of a bell mouth during installation, is connected by bolts, and is fixedly connected with the drill floor base by using iron wires at four corners.

Therefore, the installation is very laborious, the installation is carried out at a place 6 m away from the ground, the place is narrow and has no place to stand, and the installation by matching a plurality of people is very unsafe. Meanwhile, the two half mud blocking umbrellas are very easy to deform when a well is completed and moved, are more difficult to install after deformation, cannot play a sealing role, and can ensure that the scattered drilling fluid does not leak by paving plastic cloth on the upper end faces of the mud blocking umbrellas, so that the mud blocking umbrellas are neither attractive nor beneficial to the flow of the drilling fluid scattered on the mud blocking umbrellas into a well, are accumulated for a long time to cause the dry and hard drilling fluid to block a drilling fluid flow passage, cause the drilling fluid to overflow from the periphery of the mud blocking umbrellas, and cannot play a mud blocking role.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims to provide a mud blocking umbrella which can be quickly assembled and disassembled, is not easy to deform, has a large mud blocking coverage area, and can timely clean drilling fluid on the mud blocking umbrella.

In order to achieve the above object, the present invention provides the following solutions:

a mud blocking umbrella comprises a fixed part, a movable part and a blowing component;

the fixed part is sat and is adorned on the horn mouth of blowout preventer, the collapsible installation of movable part the top edge of fixed part for enlarge and keep off the mud area, it installs to sweep the subassembly on the fixed part, be used for sweeping the fixed part and deviate from drilling fluid on the terminal surface of horn mouth.

In a particular embodiment, the fixation portion comprises a body and a central tube;

the main body is funnel-shaped, and a round hole is formed in the center of the main body;

the central tube is connected to the bottom end of the main body and is communicated with the circular hole;

the center tube is seated within the flare.

In another specific embodiment, the fixation portion further comprises a stop ring;

the baffle ring is installed on the top end of the main body and surrounds the round hole, and a drainage through hole is formed in the baffle ring.

In another specific embodiment, the fixing part further comprises a lifting lug;

the lifting lug is fixed on the inner wall of the main body, and a lifting hole is formed in the lifting lug.

In another specific embodiment, the fixing portion further comprises a support rib and a fixing pin;

the support rib is fixed on the outer wall of the main body through the fixing pin and is used for supporting the movable part.

In another specific embodiment, the movable portion comprises a movable plate, a first sealant sheet, and a second sealant sheet;

the movable plate is hinged with the top end edge of the main body and is supported by the support rib;

the first sealing rubber is fixed at the end where the movable plate is connected with the main body and is used for sealing a gap between the movable plate and the main body;

the second sealing rubber is arranged on the edge of the side wall of the movable plate and used for sealing a gap between the adjacent movable plates.

In another specific embodiment, the movable plate has an inverted trapezoidal shape;

the first sealing rubber sheet is in an inverted trapezoid shape, and the length of the upper bottom of the first sealing rubber sheet is greater than that of the lower bottom of the movable plate;

the second rubber seal is parallelogram, just the long limit of second rubber seal is greater than the side length of side of fly leaf.

In another specific embodiment, the purge module comprises a purge line;

the purging pipeline is laid on the end face, deviating from the horn mouth, of the main body, and a plurality of through air holes are formed in the purging pipeline and used for purging drilling fluid.

In another specific embodiment, the lifting lug is provided with a fixing hole for fixing the purging pipeline;

and the gas outlet of the purging pipeline is over against the drainage through hole.

In another specific embodiment, the purge module further comprises a flexible gas line, a line header, and a control gas switch;

and two ends of the soft air pipeline are respectively communicated with the air inlet of the purging pipeline and the air outlet of the pipeline collecting pipe, and the control air switch is communicated with the air inlet of the pipeline collecting pipe.

The various embodiments according to the utility model can be combined as desired, and the embodiments obtained after these combinations are also within the scope of the utility model and are part of the specific embodiments of the utility model.

The mud blocking umbrella provided by the utility model is convenient to disassemble and assemble as the mud blocking umbrella is arranged on the bell mouth of the well sealing device through the fixing part. With the collapsible installation of movable part in the top edge of fixed part, on the one hand, enlarged the fender mud area, on the other hand when moving, folds the movable part, has avoided the deformation problem that fender mud umbrella size leads to greatly. In addition, sweep the unit mount on the fixed part, can sweep the drilling fluid on the terminal surface that the fixed part deviates from the horn mouth, realized the timely processing to the drilling fluid on the fender mud umbrella.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without novelty work.

FIG. 1 is a schematic three-dimensional structure of a fender umbrella provided by an embodiment of the utility model;

fig. 2 is a schematic structural diagram of a fixing portion according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a movable plate provided in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a first sealant rubber provided in an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a support rib according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a second sealant rubber provided in the embodiment of the present invention;

fig. 7 is a schematic structural diagram of a manifold provided by an embodiment of the present invention.

Wherein, in fig. 1-7:

the device comprises a fixed part 1, a movable part 2, a purging component 3, a blowout preventer 4, a bell mouth 401, a main body 101, a central pipe 102, a baffle ring 103, a drainage through hole 104, a lifting lug 105, a lifting hole 106, a support rib 107, a fixing pin 108, a movable plate 201, a first sealing rubber sheet 202, a second sealing rubber sheet 203, a purging pipeline 301, a fixing hole 302, a soft air pipeline 303, a pipeline collecting pipe 304, a control air switch 305, a through air hole 306, rivets 5 and hinges 6.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any new effort, are within the scope of the utility model.

As shown in fig. 1, the mud-blocking umbrella provided by the utility model can be quickly assembled and disassembled, is not easy to deform, has a large mud-blocking coverage area, and can be used for timely cleaning drilling fluid on the mud-blocking umbrella.

Wherein, fender mud umbrella includes fixed part 1, movable part 2 and sweeps subassembly 3, and fixed part 1 provides the support of whole fender mud umbrella, sits and adorns on the horn mouth 401 of blowout preventer 4, the dismouting of being convenient for.

The collapsible installation of movable part 2 is in the top edge of fixed part 1 for enlarge fender mud area, specifically, movable part 2 passes through hinges 6 etc. with the top edge of fixed part 1 and articulates, has enlarged fender mud area on the one hand, and on the other hand when moving, folds movable part 2, has avoided the deformation problem that fender mud umbrella size leads to greatly.

The purging component 3 is arranged on the fixing part 1 and used for purging drilling fluid on the end face, deviating from the bell mouth 401, of the fixing part 1, and timely processing of the drilling fluid on the mud blocking umbrella is achieved.

In some embodiments, as shown in fig. 2, the fixing portion 1 includes a main body 101 and a central tube 102, specifically, the main body 101 is funnel-shaped, and a circular hole is opened at the center of the main body 101.

The body 101 may be welded from steel plates having a thickness ranging from 5mm to 10mm, and the height of the welded body 101 ranges from 300mm to 400 mm. The bottom end of the main body 101 and the top end of the main body 101 are formed in a surrounding manner and are square, the side length range of the bottom end of the main body 101 is 500mm-600mm, and the angle range formed by the side edge connecting the bottom end of the main body 101 and the top end of the main body 101 and the bottom end of the main body 101 is 120 degrees and 130 degrees.

The center tube 102 is connected to the bottom end of the main body 101 and communicates with the circular hole. In order to improve the connection firmness of the central tube 102 and the main body 101, the utility model discloses that the central tube 102 is welded with the main body 101. It should be noted that welding the center tube 102 to the main body 101 is only one preferred embodiment of the present invention, and in practical applications, other connection methods such as screwing the center tube 102 to the main body 101 may be selected.

The central tube 102 is seated in the bell mouth 401, has a certain strength, and may be a circular steel tube, the inner diameter of which is the same as that of the circular hole, and the outer diameter of which is slightly smaller than the inner diameter of the upper port of the bell mouth 401, so as to be inserted into and stably seated on the upper port of the bell mouth 401.

In some embodiments, the fixing portion 1 further includes a baffle ring 103, the baffle ring 103 is installed on the top end of the main body 101 and disposed around the circular hole, and the baffle ring 103 is provided with a drainage through hole 104.

Specifically, the baffle ring 103 is a round or square steel pipe, the inner diameter of which is 20mm-30mm larger than the diameter of the round hole, and the height of which is 30mm-50mm, and is used for blocking the falling objects at the wellhead and preventing the falling objects from falling into the well. The above disclosed range values are only one preferred range value disclosed in the present invention, and values outside the range values may be selected in practical applications.

In order to uniformly and quickly drain the drilling fluid in the mud blocking umbrella into a well, the utility model discloses that the number of the drainage through holes 104 is at least 2, and the drainage through holes are uniformly distributed on the blocking ring 103 along the circumferential direction of the blocking ring 103, and the preferred number is 4-8.

In order to enhance the connection strength between the retainer ring 103 and the main body 101, the present invention discloses that the retainer ring 103 is welded to the main body 101. It should be noted that the welding of the retainer 103 to the main body 101 is only one preferred embodiment of the present invention, and in practical applications, other connection methods such as the threaded connection of the retainer 103 to the main body 101 may be selected.

In order to facilitate the hoisting of the mud-blocking umbrella, the utility model discloses that the fixing part 1 further comprises a lifting lug 105, the lifting lug 105 is fixed on the inner wall of the main body 101, and a hoisting hole 106 is formed in the lifting lug 105.

Specifically, the lifting lugs 105 are formed by processing steel plates with the thickness of 10mm-20mm, and the number of the lifting lugs is 2-4. Taking 4 lifting lugs 105 as an example, the lifting lugs 105 are symmetrically welded on the four corners of the main body 101 and are 20mm-30mm away from the upper edge of the main body 101.

In some embodiments, the fixing portion 1 further includes a support rib 107 and a fixing pin 108, and the support rib 107 is fixed on the outer wall of the main body 101 by the fixing pin 108 for supporting the movable portion 2.

Specifically, the support rib 107 is a rectangular parallelepiped formed by processing a steel plate having a thickness of 10mm to 20mm, and as shown in fig. 5, has a length range of 500mm to 600mm and a width range of 200mm to 300 mm. In order to facilitate rotation and fixation, the main body 101 is provided with a connection hole for cooperating with the fixation pin 108.

In order to enhance the connection strength between the fixing pins 108 and the main body 101, the utility model discloses that the fixing pins 108 are welded on the peripheral outer wall of the main body 101, and the number of the fixing pins 108 is 4-8, and the fixing pins are used for fixing the support ribs 107.

The support rib 107 is movably mounted on the fixing pin 108, and is rotatable to a proper position and fixed, for supporting the movable portion 2.

In some embodiments, the movable portion 2 includes a movable plate 201, a first rubber seal 202 and a second rubber seal 203, and the movable plate 201 is hinged to the top edge of the main body 101 and supported by the support rib 107.

A first rubber seal 202 is fixed at the end of the movable plate 201 connected to the main body 101 for sealing the gap between the movable plate 201 and the main body 101. Specifically, the first rubber seal 202 is made of rubber or plastic.

A second rubber seal 203 is mounted on the edge of the sidewall of the movable plate 201 for sealing the gap between the adjacent movable plates 201. Specifically, the second rubber seal 203 is made of rubber or plastic.

In some embodiments, the movable plate 201 and the first rubber seal 202 are in an inverted trapezoid shape, as shown in fig. 3 and 4. The length of the upper bottom of the first rubber seal 202 is slightly greater than the length of the lower bottom of the movable plate 201, the lower bottom of the first rubber seal 202 is matched with the main body 101, and a plurality of holes matched with the rivets 5 are drilled in the main body 101 for facilitating the fixation of the first rubber seal 202 with the movable plate 201.

The second rubber seal 203 is in the shape of a parallelogram, as shown in fig. 6. The long side of the second rubber seal 203 is longer than the side of the movable plate 201. The length of the short side ranges from 20mm to 30mm, and a plurality of holes matched with the rivets 5 are drilled on the main body 101 in order to fix the second sealing rubber sheet 203 and the movable plate 201.

In some embodiments, as shown in fig. 7, the purge assembly 3 includes a purge line 301, the purge line 301 is laid on an end surface of the main body 101 facing away from the bell mouth 401, and the purge line 301 is opened with a plurality of through air holes 306 for purging the drilling fluid.

Further, the purge line 301 is a steel gas line. Specifically, the purge line 301 is a section of a circular steel pipe with a diameter of 10mm to 20mm and a length of 950mm to 1000mm, and is made into a zigzag shape, that is, the purge line 301 is divided into an upper section, a middle section and a lower section along the direction from top to bottom according to bends. The middle section is attached to the inner wall surface of the main body 101, the upper section and the middle section form an angle of 85-95 degrees, the lower section and the middle section form an angle of 45-55 degrees, and the lower section is parallel to the bottom end surface of the main body 101.

In order to clean the drilling fluid on the upper end face of the main body 101, the through air holes 306 are parallel to the upper end face of the main body 101, the number of the purging pipelines 301 is 4-8, and the diameter range of the through air holes 306 is 1-2 mm.

In order to facilitate the installation of the purging pipeline 301, the utility model discloses that the lifting lug 105 is provided with a fixing hole 302 for fixing the purging pipeline 301, the air outlet of the purging pipeline 301 is opposite to the drainage through hole 104, and the outer diameter of the purging pipeline 301 is smaller than the diameter of the drainage through hole 104.

In some embodiments, purge assembly 3 further comprises a soft gas line 303, a line header 304, and a control gas switch 305, wherein both ends of soft gas line 303 are in communication with the gas inlet of purge line 301 and the gas outlet of line header 304, respectively, and control gas switch 305 is in communication with the gas inlet of line header.

Specifically, the pipeline collecting pipe 304 is a circular pipe with the diameter of 50mm-60mm, blind plates are welded at two ends of the pipe, connectors of the flexible gas pipelines 303 are symmetrically welded on the side wall of the pipeline collecting pipe 304, the upper end of each connector is connected with the control gas switch 305, and the lower ends of the connectors are 4-8 and are respectively connected with the flexible gas pipelines 303.

After the drilling is finished and the casing is put for cementing, the well sealing device 4 is installed and fixed, and then the utility model is installed. During installation, the lifting lugs 105 are firstly hung by the hanging belts, then the mud blocking umbrella is hung to the upper end of the bell mouth 401, the central pipe 102 is inserted and seated on the bell mouth 401, the movable plate 201 is then unfolded, and the movable plate 201 is supported by the rotary supporting ribs 107, so that the mud blocking umbrella is quickly installed.

When the drilling rig is pulled out, connect single when spraying drilling fluid, drilling fluid on the rig floor will flow to and keep off the mud umbrella, the drilling fluid on keeping off the mud umbrella will flow into horn mouth 401 through keeping off drainage through-hole 104 on the ring 103, if spray drilling fluid when too much, the driller can open control air switch 305, compressed air blows the up end that keeps off the mud umbrella through sweeping pipeline 301, thereby blow away the drilling fluid that will spill at keeping off mud umbrella up end, flow into in the well, avoided the drilling fluid to pile up the dry knot and cause the drilling fluid to spill again under the rig floor from keeping off the mud umbrella, cause the ground dirty, realize safe environmental protection requirement.

After completion, when the mud blocking umbrella is detached, the supporting ribs 107 are rotated away from the movable plate 201, the movable plate 201 is put down and retracted, the lifting lugs 105 are lifted by the lifting belts, and the mud blocking umbrella is integrally lifted down from the bell mouth 401 and put on a proper position on the ground. In the whole disassembly and assembly process, only 2-3 people are needed, the manual input is reduced, the phenomenon that multiple people fall off from a high place 7-8 meters away from the ground to cause a safety accident is avoided, meanwhile, the rapid disassembly and assembly is realized, the convenience and labor saving are realized, the whole hoisting and carrying are not easy to deform, the drilling fluid can be cleared in time, the dry and hard accumulation of the drilling fluid is effectively avoided, the rapid clearing is realized, the environmental protection requirement is met, the labor intensity is reduced, and the operation timeliness is improved.

It should be noted that the range values disclosed herein are only preferred range values disclosed in the present invention, and in practical applications, values outside the range values may be selected.

The terms indicating the orientation, such as upper, lower, inner, outer, etc., herein are set in the direction of the attached fig. 1 of the specification, and are used for convenience of description only and have no other specific meanings.

It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the core concepts of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. A mud blocking umbrella is characterized by comprising a fixed part, a movable part and a blowing component;

2. A fender umbrella of claim 1, wherein the securing portion comprises a body and a central tube;

the center tube is seated within the flare.

3. A fender umbrella according to claim 2, wherein the securing portion further comprises a fender ring;

4. A fender umbrella of claim 3, wherein the fixed portion further comprises a lifting lug;

5. The fender umbrella of claim 4, wherein the securing portion further comprises a support rib and a securing pin;

6. The fender umbrella of claim 5, wherein the movable portion comprises a movable plate, a first rubber seal and a second rubber seal;

7. The fender umbrella of claim 6, wherein the movable plate is in the shape of an inverted trapezoid;

8. A fender umbrella of any one of claims 4 to 7, wherein the purge assembly comprises a purge line;

9. A mud-guard umbrella as claimed in claim 8, wherein the lifting lugs are provided with fixing holes for fixing the purging pipeline;

10. A fender umbrella of claim 8, wherein the purge assembly further comprises a flexible air line, a line header and a control air switch;