CN114263443A

CN114263443A - Well cementing equipment

Info

Publication number: CN114263443A
Application number: CN202111388169.5A
Authority: CN
Inventors: 张峰; 类成朋; 郭昭; 刘仁; 袁寅龙; 刘伟强
Original assignee: Yantai Jereh Petroleum Equipment and Technologies Co Ltd
Current assignee: Yantai Jereh Petroleum Equipment and Technologies Co Ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-04-01
Anticipated expiration: 2041-11-22
Also published as: CN114263443B

Abstract

The application discloses well cementation equipment, which comprises a cabin body, a cabin door, a well cementation sled, a supply system and a discharge system; the cabin door with the cabin body links to each other, and both form sealed space, the well cementation sled set up in the sealed space, feed system with discharge system respectively with the well cementation sled links to each other, just at least partly of feed system, at least partly of discharge system all is located in the sealed space. The scheme can prolong the service life of the well cementation equipment and reduce the use cost and purchase cost of the well cementation equipment.

Description

Well cementing equipment

Technical Field

The application belongs to the technical field of well drilling, and particularly relates to well cementation equipment.

Background

As drilling technology develops, more and more development activities move from land to the sea. The ocean platform is an infrastructure for offshore oil and gas resource development and is also a base for offshore production and life. The offshore platform may be a drilling platform in particular, drilling and cementing being the main functions of the drilling platform, for which the drilling floor and the derrick occupy a central position of the moon pool, and therefore cementing equipment for effecting cementing is generally placed in an open air position near the moon pool, such as a deck.

In order to realize the functions of water supply, ash supply, mixing, pumping and the like of the well cementation equipment, the well cementation equipment needs to comprise equipment such as a power source, a transmission system, a pipeline system, a hydraulic system, an operation system and the like, and the equipment is generally placed at a place close to a moon pool and is mostly stored in the open air, so that the following problems can be brought:

(1) the equipment is stored on the deck in the open air, the seawater and the salt fog corrode the equipment seriously, the equipment is damaged easily, the service life of the equipment is shortened, the maintenance frequency of the well cementation equipment is high, and the use cost of the well cementation equipment is high.

(2) The moon pool area is used as a channel for drilling, is close to a wellhead, is more in combustible gas around and is generally divided into dangerous areas, so that equipment in the area needs to meet the explosion-proof requirement, the higher explosion-proof requirement is provided for well cementation equipment, and the purchase cost of the well cementation equipment is increased.

(3) The operating personnel directly operates on equipment, and operational environment is relatively poor, and during the equipment operation, great noise can be produced to engine, plunger pump etc to accompanying production such as vibration and dust, operating personnel can cause certain injury to the health under being in this kind of abominable environment for a long time.

(4) The fuel tank of the well cementation equipment is close to equipment with high-temperature areas such as an engine, if oil in the fuel tank leaks, the leaked oil is easy to contact with high-temperature components, and then fire disasters are caused.

(5) The multiple pipelines such as water supply pipeline, ash supply pipeline, air supply pipeline, discharge line need be connected during the well cementation equipment operation, because the pipeline design of each system of drilling platform does not extend to the deck top, consequently can only connect through interim hose, cause well cementation equipment pipeline around mixed and disorderly, influence operating personnel's operation even current, have certain potential safety hazard.

Disclosure of Invention

The embodiment of the application aims to provide the well cementation equipment, which can solve the problems of short service life, high use cost and high purchase cost of the well cementation equipment.

In order to solve the technical problem, the present application is implemented as follows:

the embodiment of the application provides well cementation equipment, which comprises a cabin body, a cabin door, a well cementation sled, a supply system and a discharge system;

the cabin door with the cabin body links to each other, and both form sealed space, the well cementation sled set up in the sealed space, feed system with discharge system respectively with the well cementation sled links to each other, just at least partly of feed system, at least partly of discharge system all is located in the sealed space.

In the embodiment of the application, the well cementation equipment comprises a cabin body, a cabin door, a well cementation sled, a supply system and a discharge system, the cabin body and the cabin door can jointly form a sealed space, the well cementation sled is arranged in the sealed space, the supply system can supply required materials for the well cementation sled, and the materials generated by the well cementation sled can be discharged out of the well cementation equipment through the discharge system, so that well cementation is realized. In the scheme, the well cementation sled is not exposed any more, so the well cementation sled cannot be corroded by seawater and salt mist, the service life of well cementation equipment is longer, the frequency of maintenance is reduced, and the use cost of the well cementation equipment is reduced. In addition, the cabin body and the cabin door form a sealed space which is separated from the external environment, so that the whole well cementation equipment has higher explosion-proof grade, and the explosion-proof grade of the well cementation pry arranged in the cabin body can be properly reduced, thereby reducing the purchase cost of the well cementation equipment.

Drawings

FIG. 1 is a block diagram of a cementing apparatus disclosed in an embodiment of the present application;

FIG. 2 is a schematic view of a portion of a bulkhead disclosed in an embodiment of the present application;

fig. 3 is a schematic structural diagram of a water main disclosed in an embodiment of the present application.

Description of reference numerals:

110-cabin body, 111-steel plate, 112-transverse strengthening material, 113-longitudinal strengthening material, 114-strengthening toggle plate, 115-strengthening beam, 120-cabin door, 130-well cementing pry, 140-fuel tank, 150-fuel supply pipeline, 160-remote control room, 170-power supply bus pipeline, 180-first power supply circuit, 190-second power supply circuit, 200-hydraulic power unit, 210-third power supply circuit, 220-communication circuit, 230-first air supply pipeline, 240-water supply main pipe, 250-fresh water pipeline, 260-seawater pipeline, 270-well drilling water pipeline, 280-first switch valve, 290-second switch valve, 310-third switch valve, 320-smoke exhaust channel, 330-sealing assembly, 340-sewage discharge device, 350-stable pressure ash tank, 360-high pressure discharge pipeline and 370-ash supply pipeline.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The cementing equipment provided by the embodiment of the present application is described in detail by specific embodiments and application scenarios thereof with reference to the accompanying drawings.

Referring to fig. 1 to 3, an embodiment of the present application discloses a cementing apparatus, which includes a cabin 110, a hatch 120, a cementing sled 130, a supply system, and a discharge system.

The cabin 110 may be an exposed component in a cementing device, the cabin 110 may include a bulkhead, and optionally, the bulkhead may include a steel plate 111, a transverse stiffener 112, a longitudinal stiffener 113, and a reinforcing toggle plate 114, the transverse stiffener 112 and the longitudinal stiffener 113 are both fixedly connected to the steel plate 111 by welding, and the reinforcing toggle plate 114 may be connected to the transverse stiffener 112 and the longitudinal stiffener 113, respectively, so as to improve the structural strength of the bulkhead. The transverse stiffeners 112, the longitudinal stiffeners 113 and the reinforcing brackets 114 may be provided in plurality, and in this case, the bulkhead may further include a reinforcing beam 115, and the reinforcing beam 115 may be fixedly connected to the plurality of longitudinal stiffeners 113 by welding or the like, so as to further improve the structural strength of the bulkhead.

The hatch 120 is connected to the cabin 110, and both form a sealed space. The number of the hatches 120 may be one, two or more, and the number of the hatches 120 may be flexibly selected according to actual requirements, which is not limited in the embodiments of the present application. The sealing grade of the sealed space formed after the door 120 is closed may be a grade above weather tight.

The well cementation sled 130 is arranged in the sealed space, the well cementation sled 130 is a core part of well cementation equipment, the well cementation sled 130 can comprise a sled body, a power device, a slurry mixing device and a pumping device, the power device, the slurry mixing device and the pumping device are arranged on the sled body, power can be provided for the slurry mixing device and the pumping device, the slurry mixing device can mix clean water or clean water mixed liquid with other agents with dry ash, and cement slurry required by well cementation is formed. The chemical agents mentioned here can be weighting agent, weight reducing agent, accelerating agent, retarder, etc., and the dry ash refers to dry cement with certain characteristics, which can be mixed with clear water or clear water mixed solution to cement sand, stone, etc. to form hydraulic cementing material that can be hardened in air and water. The mixing form of the slurry mixing device may include, but is not limited to, high energy mixer mixing, jet mixer mixing, secondary circulation, stirring, and the like. The pumping device can supply mixed cement slurry to a wellhead according to certain pressure and flow, the pumping device can comprise a plunger pump, the plunger pump can be a horizontal plunger pump, the transmission form of the plunger pump can be gear box transmission or worm and gear transmission, the plunger pump can be divided into three cylinders and five cylinders according to different powers, and even comprises more cylinder bodies.

The feed system and the discharge system are each connected to the cementing sled 130, and at least a portion of the feed system and at least a portion of the discharge system are each located within the sealed space. The supply system can provide clean water (specifically, at least one of fresh water, seawater and drilling water), dry ash, oil, compressed air, electric energy and the like required by the cementing skid 130 to the cementing skid 130, and the discharge system can discharge cement slurry generated by the cementing skid 130, that is, under the action of the pumping device, the cement slurry generated by the slurry mixing device can be discharged out of the cabin 110 through the discharge system, so that the cement slurry can reach the wellhead.

The power device of the cementing sled 130 can use a motor, and the power device can work after being electrified. The power plant may also employ an engine, and since the engine requires fuel as a raw material, the supply system needs to supply fuel to the power plant. Alternatively, the supply system may include a fuel tank 140, the fuel tank 140 being in communication with the power plant. The fuel tank 140 can be directly mounted on the well cementing pry 130, and the fuel tank 140 is close to the power device, so that serious consequences such as fire and the like are easily caused once the fuel tank 140 leaks, and therefore the fuel tank 140 can be independently arranged in the cabin body 110, namely the fuel tank 140 and the well cementing pry 130 are arranged at intervals. In this case, the distance between the fuel tank 140 and the power unit is long, and even if the fuel tank 140 leaks, adverse effects such as fire are unlikely to occur. A fuel quick-closing valve can be arranged on a connecting pipeline between the fuel tank 140 and the power device so as to cut off fuel supply in an emergency and ensure safety in the cabin.

The fuel tank 140 has a certain volume, so that fuel can be stored in the fuel tank 140, the storage amount of the fuel in the fuel tank 140 can meet the working requirement of a power plant in a period of time, and when the fuel in the fuel tank 140 is insufficient, an operator can add the fuel into the fuel tank 140 by a manual adding mode, but the mode can cause higher labor intensity of the operator. Therefore, in another embodiment, the supply system may further include a fuel supply line 150, one end of the fuel supply line 150 is connected to the platform oil source outside the cabin 110, and the other end of the fuel supply line 150 is connected to the oil inlet of the fuel tank 140. The fuel supply line 150 can be used to supply fuel to the fuel tank 140 at any time, so that manual fuel addition is not required, and the labor intensity of operators can be reduced.

In an alternative embodiment, the cementing apparatus further comprises a remote control room 160, the remote control room 160 being disposed in the sealed space, the remote control room 160 being in communication with the cementing sled 130. Optionally, the communication connection between the remote control room 160 and the cementing sled 130 may be a wireless connection or a wired connection, and in the latter embodiment, the remote control room 160 may be in bidirectional communication with the cementing sled 130 through the communication line 220. The remote control room 160 may be used for an operator to perform a control operation, and may include a housing and a control device disposed in the housing, and since the housing may separate the inside and outside environments of the remote control room 160, when the operator performs a control operation in the remote control room 160, the harsh environment outside the remote control room 160 may not substantially affect the operator, and thus, the health of the operator may not be easily damaged.

The remote control room 160 can monitor the working state of the cementing sled 130 in addition to performing control operations, thereby providing a control basis for operators. The remote control room 160 may monitor the cementing sled 130 in a variety of ways, such as providing a transparent window in the housing of the remote control room 160, the transparent window facing the cementing sled 130 through which an operator may view the cementing sled 130 to monitor the cementing sled 130; or, the remote control room 160 further includes a camera, the camera is disposed on the housing, the camera faces the cementing sled 130, the camera can obtain an image of the cementing sled 130, and an operator can know the operation state of the cementing sled 130 through the image. Of course, the remote control room 160 may also be provided with a transparent window and camera at the same time to more accurately and fully monitor the cementing sled 130. In addition, the operator may also monitor other equipment within the nacelle 110 through the transparent window and/or the camera.

As mentioned above, the power supply system needs to provide the electric power required by the operation of the cementing skid 130, and the electric power may be directly supplied by a power supply outside the cabin 110, specifically, the electric power may be directly input by an alternating current between 110V and 240V, and of course, other supply methods may also be adopted. When the well cementation equipment further comprises a remote control room 160, the supply system can comprise a power supply bus 170, a first power supply circuit 180 and a second power supply circuit 190, one end of the first power supply circuit 180 is electrically connected with the platform power supply through the power supply bus 170, the other end of the first power supply circuit 180 is electrically connected with the well cementation sled 130, one end of the second power supply circuit 190 is electrically connected with the platform power supply through the power supply bus 170, the other end of the second power supply circuit 190 is electrically connected with the remote control room 160, and the remote control room 160 is electrically connected with the well cementation sled 130 through a third power supply circuit 210 and a communication circuit 220. In this embodiment, the first power supply line 180 may enable the platform power supply to directly supply power to the cementing skid 130, and the second power supply line 190 and the third power supply line 210 may enable the platform power supply to supply power to the cementing skid 130 through the remote control room 160, and may specifically supply a control voltage of 24V. The two power supply modes can be selected optionally, and a mode that part of the structure of the well cementation sled 130 supplies power through the first power supply circuit 180 and the other part of the structure supplies power through the second power supply circuit 190 and the third power supply circuit 210 can also be adopted.

The supply system is required to provide pressurized gas to the cementing skid 130, which may be provided directly from a pressurized gas source external to the chamber 110, or may be provided by other means. Optionally, the cementing sled 130 includes a compressor for generating compressed air, which may be installed directly adjacent to the power plant of the cementing sled 130 when the power plant is provided with an interface to which the compressor may be connected; when the power plant does not have an interface to which the compressor can be connected, then the compressor can be separately installed on the skid of the cementing skid 130. Of course, the two air supply modes can be combined, so that the two air supply modes can be mutually standby air supply modes, and the compressor can be provided more reliably. At this time, the supply system may include a first air supply line 230 and a second air supply line, one end of the first air supply line 230 is communicated with the platform high pressure air source, the other end of the first air supply line 230 is communicated with the well cementing sled 130, one end of the second air supply line is communicated with the platform low pressure air source, and the other end of the second air supply line is communicated with the compressor, so that the compressor provides compressed air to the air using device of the well cementing sled 130.

The supply system may further include a gas cylinder disposed in the sealed space, and the first gas supply line 230 and the second gas supply line may be connected to the gas cylinder, so that the gas cylinder may store compressed gas.

The supply system needs to supply liquids such as fresh water, seawater, and drilling water to the cementing skid 130, and these liquids may be provided with independent supply lines, but considering that the cementing skid 130 needs only one liquid at the same time, in order to simplify the line structure of the supply system, the supply system may include a water supply main 240, a fresh water line 250, a seawater line 260, and a drilling water line 270, wherein a first end of the water supply main 240 is communicated with the cementing skid 130, the fresh water line 250, the seawater line 260, and the drilling water line 270 are communicated with a second end of the water supply main 240, the fresh water line 250 is provided with a first on-off valve 280, the seawater line 260 is provided with a second on-off valve 290, and the drilling water line 270 is provided with a third on-off valve 310. When the first on-off valve 280 is open, the feed system may provide fresh water to the cementing skid 130; when the second on-off valve 290 is open, the feed system may provide seawater to the cementing skid 130; when the third on/off valve 310 is open, the feed system may provide drilling water to the cementing sled 130. Of course, at least two of the first, second, and third on-off

valves

280, 290, and 310 may be simultaneously opened to achieve the mixed water supply.

In addition to receiving materials outside the cabin 110 through the supply system, the cementing sled 130 may further include other energy supply structures disposed inside the cabin 110 to supply energy to the cementing equipment. Optionally, the cementing apparatus further comprises a hydraulic power unit 200, the hydraulic power unit 200 being located within the sealed space, which may power hydraulic components. The hydraulic power unit 200 may include the primary components of a prime mover, hydraulic oil tank, transfer case, hydraulic pump, etc., and the necessary connection accessories, such as hydraulic lines, fittings, filters, radiators, etc. The hydraulic power unit 200 may be integrated with the cementing sled 130, and in this embodiment, the structure of the cementing equipment is more compact, and optionally, when the power device includes an engine, the hydraulic power unit 200 may be only used as a power transmission component due to the power external interface of the engine, so as to drive the hydraulic component to work. Alternatively, the cementing apparatus further comprises an installation sled, the installation sled is spaced apart from the cementing sled 130, the hydraulic power unit 200 is disposed on the installation sled, and the hydraulic power unit 200 is connected to the cementing sled 130, optionally, when the power device comprises a motor, the hydraulic power unit 200 may be separately disposed to generate power and transmit the power to the hydraulic component. Alternatively, the hydraulic power unit 200 may be connected to the cementing sled 130 via a quick connector to allow for quick disassembly and assembly. In this embodiment, the hydraulic power unit 200 is separately installed, so that the hydraulic power unit is not easily affected by the cementing sled 130, for example, a fire caused by the flammable oil leaking to the high-temperature power device area is not easily generated.

In an alternative embodiment, the well cementation equipment can further comprise a pressure stabilizing ash tank 350, the pressure stabilizing ash tank 350 is arranged in the sealed space, the well cementation skid 130 is communicated with the platform ash supply equipment through the pressure stabilizing ash tank 350, the supply system can comprise an ash supply pipeline 370, and the pressure stabilizing ash tank 350 is communicated with the ash supply pipeline 370. The platform ash supply device can comprise an ash discharge tank, the ash stabilizing tank 350 is communicated with the ash discharge tank through an ash supply pipeline 370, and the ash stabilizing tank 350 comprises a main tank, a gasification device connected with the main tank, a pressure stabilizing bag, an overpressure pressure relief pipeline, an exhaust pipeline, an air supply valve, an air supply pipeline, a main tank emptying ball valve, a main tank emptying pipeline and the like. When the dry cement enters the main tank, the gasification device realizes the gasification of the dry cement through the side wind, and blows the gasified dry cement out of the pressure stabilizing ash tank 350 through the bottom wind, thereby providing stable dry cement for the well cementing skid 130. When the pressure in the pressure stabilizing ash tank 350 is too high, the piston of the pressure stabilizing bag moves upwards (if the pressure stabilizing bag is an air bag type pressure stabilizing bag, the air bag contracts), and the overpressure pressure relief pipeline is opened so as to relieve pressure through the exhaust pipeline, so that pressure balance is ensured; when the pressure in the pressure stabilizing ash tank 350 is too low, the air supplementing valve can be opened to supplement air into the pressure stabilizing ash tank 350 through the air supplementing pipeline; when the pressure in the surge tank 350 is abnormally high, the main tank vent ball valve can be opened to exhaust through the main tank vent line, thereby ensuring stable pressure. The ash stabilizing tank 350 may further include a gas storage bag for stabilizing air pressure and achieving air diversion, and a blow-down ball valve may be disposed at the bottom of the main tank to achieve a blow-down purpose. In addition, a fluidized bed can be arranged in the main tank, and under the cooperation of the fluidized bed and the gasification device, dry cement particles can be kept in a suspension state.

The main function of the pressure stabilizing ash tank 350 is to supply dry cement to the mixing device with stable pressure and flow, reduce air bubbles in cement paste, improve the paste mixing quality of the cement paste, and the pressure stabilizing ash tank 350 can also comprise a check valve, thereby preventing the cement paste from being poured into the tank. The surge tank 350 may be a vertical tank, and may be operated by local operation or remote operation. The surge tank 350 may be disposed adjacent to the cementing skid 130 and the remote control room 160 to facilitate an operator's view of the operating conditions of the surge tank 350.

The discharge system may serve as an output portion of the cementing apparatus and may include a high pressure discharge line 360, the high pressure discharge line 360 being in communication with the slurry mixing device of the cementing sled 130 to discharge the cement slurry produced by the slurry mixing device. The high pressure discharge line 360 may include a plug valve, a high pressure elbow, a high pressure straight line, etc., which may be of an assembled structure, and may be located at a side of the cabin 110 away from the power device.

The exhaust system can also exhaust the waste gas generated by the power device, thereby preventing the waste gas from polluting the environment in the cabin. Cabin body 110 is equipped with the exhaust port, and power device is equipped with the blast pipe, and this blast pipe can set up the muffler to reach the noise reduction effect. The exhaust system comprises a smoke exhaust channel 320 and a sealing assembly 330, the sealing assembly 330 comprises a connecting flange and a sealing member, one end of the smoke exhaust channel 320 is communicated with the exhaust pipe, the other end of the smoke exhaust channel 320 is connected with the cabin 110 through the connecting flange, and the smoke exhaust channel 320 is communicated with the smoke exhaust port. The ratio of the diameter of the smoke evacuation channel 320 to the diameter of the exhaust pipe may be greater than or equal to 2, and the number of times of bending of the smoke evacuation channel 320 may be less than 2, so as to avoid generating excessive exhaust back pressure, thereby ensuring the power output of the power plant.

The sealing member can achieve sealing, in one embodiment, the smoke evacuation channel 320 is in sealing fit with the connecting flange through the sealing member, that is, the sealing member is arranged between the smoke evacuation channel 320 and the connecting flange; in another embodiment, the smoke evacuation channel 320 is in sealing engagement with the inner wall of the smoke exhaust via a seal, i.e., the seal is disposed between the smoke evacuation channel 320 and the inner wall of the smoke exhaust. The smoke exhaust channel 320 can be reliably connected with the cabin body 110 through the connecting flange, so that the smoke exhaust channel 320 is prevented from displacement, meanwhile, the sealing element can further improve the sealing performance at the smoke exhaust port, seawater, salt mist and the like in the external environment are prevented from entering the cabin body 110 through the smoke exhaust port, and therefore parts in well cementation equipment can be better protected by the structure. In addition, noise generated during operation of the cementing equipment may also be isolated by the seal assembly 330, thereby avoiding noise pollution.

In a further embodiment, the exhaust system further comprises a fire-resistant insulation that surrounds the smoke evacuation channel 320. The fireproof heat-insulating piece can realize fireproof and heat-insulating effects, so that the heat radiation range of the smoke exhaust channel 320 is limited, and the protection grade of well cementation equipment is higher. Optionally, the fire prevention of the fire-proof heat-insulating piece is equal to or not lower than grade B, after the fire-proof heat-insulating piece is wrapped, the temperature of the smoke exhaust channel 320 is not higher than 100 ℃, the fire-proof heat-insulating piece can be of a single-layer structure, the single-layer structure is made of materials with a fire-proof effect and a heat-insulating effect at the same time, and the fire-proof heat-insulating piece can also comprise a fire-proof layer and a heat-insulating layer which can be arranged in a stacked mode.

The discharge system can also realize the purpose of pollution discharge, namely waste water, waste oil, cement paste and other wastes generated in pressure relief can be discharged. At this moment, well cementation sled 130 is equipped with first drain, and cabin body 110 is equipped with the second drain, and first drain and second drain can directly pass through the pipeline intercommunication to realize continuous blowdown. In other embodiments, the drainage system further comprises a drainage device 340, the drainage device 340 comprises a waste storage cabin, a communicating pipe and a drainage pipeline, the waste storage cabin is communicated with the first drainage port through the communicating pipe, one end of the drainage pipeline is communicated with the drainage port of the waste storage cabin, and the other end of the drainage pipeline is communicated with the second drainage port. The waste storage bin may store waste for a period of time and may be adapted to allow the waste pipe to be in a conducting state to allow waste to be discharged if it is desired to discharge the waste. This embodiment does not require continuous blowdown and therefore allows the environment surrounding the cementing equipment to be cleaner.

The pipelines mentioned above can be made of steel hard pipes, so that the pipelines can be arranged at relatively fixed positions, the cabin and the platform are simpler, and potential safety hazards are reduced.

In the embodiment of the application, the cementing sled 130, the fuel tank 140, the remote control room 160, the hydraulic power unit 200, the pressure stabilizing ash tank 350 and other components are arranged in the sealed space, so that the components are not exposed any more, and the components are not corroded by seawater and salt mist, so that the service life of the cementing equipment is longer, the frequency of maintenance is reduced, and the use cost of the cementing equipment is reduced. In addition, the sealed space formed by the cabin body 110 and the cabin door 120 is separated from the external environment, so that the explosion-proof grade of the whole well cementation equipment is higher, the explosion-proof grade of components such as a well cementation sled 130 arranged in the cabin body can be properly reduced, and the purchase cost of the well cementation equipment is reduced.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A cementing equipment is characterized by comprising a cabin body (110), a cabin door (120), a cementing sled (130), a supply system and a discharge system;

the cabin door (120) is connected with the cabin body (110), a sealed space is formed by the cabin door and the cabin body, the well cementation sled (130) is arranged in the sealed space, the supply system and the discharge system are respectively connected with the well cementation sled (130), and at least one part of the supply system and at least one part of the discharge system are both positioned in the sealed space.

2. The well cementation equipment as claimed in claim 1, wherein the well cementation sled (130) comprises a sled body and a power device arranged on the sled body, the supply system comprises a fuel tank (140), the fuel tank (140) is communicated with the power device, and the fuel tank (140) is arranged at an interval with the well cementation sled (130).

3. The cementing equipment of claim 2, wherein the supply system comprises a fuel supply line (150), one end of the fuel supply line (150) being in communication with a source of platform oil, the other end of the fuel supply line (150) being in communication with an oil inlet of the fuel tank (140).

4. The cementing apparatus of claim 1, further comprising a remote control room (160), the remote control room (160) disposed within the sealed space, the remote control room (160) communicatively connected with the cementing sled (130).

5. The well cementation equipment as claimed in claim 4, wherein the supply system comprises a first power supply line (180) and a second power supply line (190), one end of the first power supply line (180) is electrically connected with a platform power supply, the other end of the first power supply line (180) is electrically connected with the well cementation sled (130), one end of the second power supply line (190) is electrically connected with the platform power supply, the other end of the second power supply line (190) is electrically connected with the remote control room (160), and the remote control room (160) is electrically connected with the well cementation sled (130) through a third power supply line (210) and a communication line (220).

6. Cementing equipment according to claim 4, characterized in that the remote control room (160) comprises a housing provided with a transparent window and a camera arranged in the housing, both facing the cementing sled (130).

7. The cementing apparatus of claim 1, further comprising a hydraulic power unit (200), the hydraulic power unit (200) being located within the sealed space;

the hydraulic power unit (200) is arranged on the well cementation pry (130); alternatively, the first and second electrodes may be,

the well cementation equipment further comprises an installation pry, the installation pry is arranged at an interval with the well cementation pry (130), the hydraulic power unit (200) is arranged on the installation pry, and the hydraulic power unit (200) is connected with the well cementation pry (130).

8. The cementing apparatus of claim 1, wherein the cementing sled (130) comprises a compressor, the supply system comprises a first air supply line (230) and a second air supply line, one end of the first air supply line (230) is in communication with a platform high pressure air source, the other end of the first air supply line (230) is in communication with the cementing sled (130), one end of the second air supply line is in communication with a platform low pressure air source, and the other end of the second air supply line is in communication with the compressor.

9. Cementing equipment according to claim 1, characterized in that the supply system comprises a water main (240), a fresh water line (250), a sea water line (260) and a drilling water line (270), the first end of the water main (240) being in communication with the cementing skid (130), the fresh water line (250), the sea water line (260) and the drilling water line (270) all being in communication with the second end of the water main (240), the fresh water line (250) being provided with a first on-off valve (280), the sea water line (260) being provided with a second on-off valve (290), the drilling water line (270) being provided with a third on-off valve (310).

10. The well cementation equipment as claimed in claim 1, wherein the cabin (110) is provided with a smoke exhaust port, the well cementation sled (130) comprises a sled body and a power device arranged on the sled body, the power device is provided with an exhaust pipe, the exhaust system comprises a smoke exhaust channel (320) and a sealing assembly (330), the sealing assembly (330) comprises a connecting flange and a sealing element, one end of the smoke exhaust channel (320) is communicated with the exhaust pipe, the other end of the smoke exhaust channel (320) is connected with the cabin (110) through the connecting flange, the smoke exhaust channel (320) is communicated with the smoke exhaust port, the smoke exhaust channel (320) is in sealing fit with the connecting flange through the sealing element, or the smoke exhaust channel (320) is in sealing fit with the inner wall of the smoke exhaust port through the sealing element.

11. The cementing apparatus of claim 10, wherein the evacuation system further comprises a fire insulation that encases the smoke evacuation channel (320).

12. The well cementation equipment as claimed in claim 1, wherein the well cementation sled (130) is provided with a first sewage discharge port, the cabin body (110) is provided with a second sewage discharge port, the discharge system further comprises a sewage discharge device (340), the sewage discharge device (340) comprises a waste storage cabin, a communicating pipe and a sewage discharge pipeline, the waste storage cabin is communicated with the first sewage discharge port through the communicating pipe, one end of the sewage discharge pipeline is communicated with the discharge port of the waste storage cabin, and the other end of the sewage discharge pipeline is communicated with the second sewage discharge port.

13. The well cementation equipment as claimed in claim 1, further comprising a surge ash tank (350), wherein the surge ash tank (350) is arranged in the sealed space, and the well cementation sled (130) is communicated with the platform ash supply equipment through the surge ash tank (350).