KR20000057582A - System for controlling and stopping oil drilling fires - Google Patents

Abstract

PURPOSE: A system for controlling and stopping oil drilling fires is provided to control oil well fires by blocking the production or drilling pipes. CONSTITUTION: A box incorporating a movable piston is fitted around the pipe. The piston carries, on its forward end, a drilling cylinder (3), which can be brought to the pipe by a hydraulic piston-cylinder arrangement. Subsequently, the drilling cylinder drills through the pipe wall and after that the drilling cylinder or a separate plugging cylinder (4) is left in the drilled hole and blocks the fluid flow through the pipe. The process is remote controlled.

Description

System for controlling and stopping oil drilling fires

Currently three different methods are used in the art to extinguish oil flames.

In the first method, water is sprayed at the center of the flame, while at the same time the fireman approaches the flame behind the protective shield to manually lock the valve of the oil pipe. This method is dangerous and requires a large amount of water, which is not always allowed in the area where the flame is generated.

In the second method, the use of oxygen in the surrounding area is temporarily increased by exploding the combusting well, thus the flame is extinguished due to the lack of sufficient oxygen. Then, the valves and other broken equipment can be replaced. This method is very dangerous.

In a third method, by drilling a new hole in the same well with a burning oil pipe and pumping water into the hole, the oil discharge is replaced by a water discharge and thus the fire is extinguished. This method has the disadvantage that it is expensive and requires a lot of time but its success cannot be guaranteed. Thus, this also involves a great degree of risk to carry out.

The present invention relates to a system for controlling flames of oil drilling flames or other corresponding liquid substances. According to the invention, the release of the combustion material is stopped and the oil drilling pipes / pipes are blocked so that it can be opened again.

1 is a cross sectional view of the equipment when the first drilling cylinder is operated;

2 is a cross sectional view of the equipment when the first plugging cylinder is in position.

3 is a cross-sectional view of the machine when all three plugging cylinders are in position.

4 is a transverse cross-sectional view of the hemispherical cylinder.

5 is a partial transverse cross-sectional view of a conical cylinder with a grinding surface.

6 is a partial transverse cross-sectional view of a conical cylinder with protruding blades.

Fig. 7 is a partial transverse cross-sectional view of a hydraulic cylinder showing equipment installed without showing the structure of a space provided underground where the equipment is located.

8 shows the box clamp and locked blocking bolt in detail.

FIG. 9 shows that, with the stuffing box on the right side not tightened in place, the drilling cylinder and plugging cylinder (not shown) are operated starting from the same side of the oil and / or gas drilling pipe and sealed by the stuffing box. A diagram showing use directed by a ringed cutting seam.

The main parts of the device of the present invention include hydraulic cylinders, pistons, drilling cylinders, plugging cylinders, drills, box clamps, hydraulic motors or other power sources, blocking bolts, hydraulic containers with conductors, pressure batteries, and automatic control and monitoring systems. Include. The technical idea of the present invention is that each oil and / or gas drilling pipe has its own drilling unit depending on the size of the pipe. The drilling unit means a drilling and plugging mechanism which is required for closing one oil or gas drilling pipe. Several drilling units can use mutual energy sources by means of their hydraulic containers. Under water conditions, such as in an oil drilling platform away from the shore, the water pressure is diverted for use in the system by its own mechanism. To create pressure, a method of causing an explosion inside a heavy cylinder with pistons at both ends can be used, the pressure being directed through a separate central container or directly to the hydraulic container. The pressure can also be taken from the oil or gas drilling pipe below the drilling units through the drilled hole and the joint fixed thereto. The required number of drilling units can be installed, for example three drilling units can be installed.

The purpose of the system according to the invention is to control oil and / or gas flames to prevent breakage of large scale oil and / or gas drilling equipment. The equipment can be installed in an oil and / or gas drilling system under construction or an oil and / or gas drilling system already built or in an oil and / or gas drilling system under combustion. Since the equipment is remotely installed and controlled automatically, the oil flames do not pose a threat to the human body when the equipment is pre-installed in the oil drilling system, and the equipment remains underground even when the equipment is installed on a burning system. Contrary to the case in which it is installed in the main body, there is no need to approach the center of the flame. Therefore, an advantage of the system according to the invention is that the equipment and its installation method are safe and the environment, cost and oil or gas are saved.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

1, 2 and 3, on the right side of the oil and / or gas drilling pipes and the plugging cylinder, pushing and / or similar to the pushing and / or rotating mechanism on the left side of the oil and / or gas drilling pipes. The rotating mechanism is located. It is also possible, in turn, for the drilling units operated in turn to be located on opposite sides of the oil and / or gas drilling pipes, as shown in the figure, so that continuous drilling and plugging can begin from the opposite sides of the pipes. do. If three or more drilling units are located around the same oil and / or gas drilling pipes, each drilling unit can be positioned so that operation can be initiated from entirely different directions and thus the pipes by drilling and plugging It is possible to minimize the force applied to the fields.

When the operation of the equipment is started, the pressure of the pressure batteries 10 is discharged into the hydraulic container 11, and the pressure of the hydraulic container 11 starts the operation of the hydraulic motor 8 and the valve. Oil flows into the hydraulic cylinder 1, which pushes the piston 2, and the piston 2 pushes the drill 5 and the drill cylinder 3 forward. When the drilling cylinder 3 has passed a sufficient distance, ie through the oil drilling pipes 7, the mechanical reversing valve commands the drill 5 and the drilling cylinder 3 to return and plugs. The plugging execution command is issued to the cylinder (4). The plugging cylinder 4 can also be located behind the drilling cylinder 3, in which case only one-way movement is required. When all drilling units are activated, the blocking bolt can be closed if necessary. This can be done hydraulically or by explosives. The plugging cylinders can be operated so that they are pushed alone or the rotary motor can be equipped, for example for grinding. During plugging or after plugging is complete, pressurized extinguishing agents such as liquid nitrogen may additionally be fed into the gas or oil drilling pipe. The pressurized extinguishing material is supplied through a hole formed in the oil or gas drilling pipe by a device such as a drilling cylinder 3. This supply can be performed by forced control without supply of electricity, in which case the operation cannot be stopped once the operation is started. The equipment is fixed around the oil pipes by a box clamp 6 and supported at the bottom thereof. By plugging pipes of various sizes separately, the pipes on the top are prevented from falling. By installing the sleeve pipes and withdrawing the plugs in place of the cut pipes, the oil drilling system can be reactivated.

The following application can be used to block external oil or gas drilling pipes and will be mainly described with reference to FIG. 9.

In addition to the components of the present invention as described above, the equipment according to the present invention also includes a stuffing box 14, a tighter 15, blocking locks 16, flat bearings (eg chrome strips) 17, Compressed oil packing 18, locking groove 19 and frame groove 20. The end of the stuffing box 14 facing the oil or gas drilling pipes is shaped in the form of the outer wall of the pipe and becomes very sharp. The stuffing box 14 is connected to the frame 12 of the equipment by means of a tightening member 15 having a flat bearing 17 and a male thread, by hand at installation or by an automated mechanism when the operation of the equipment is started. Tighten to proper position on female thread. The locking groove 19 is formed around the tighter 15 of the stuffing box 14; The blocking locks 16 pulled into the frame 12 by springs / hydraulic are pushed into the stuffing box when the tighter of the stuffing box is pushed to the required depth. In addition, a frame groove 20 is formed in the frame 12 of the equipment; The frame groove 20 functions in addition to the tighter 15 of the stuffing box 14 to prevent the stuffing box 14 from loosening when the stuffing box 14 reaches a fixed depth. The stuffing box 14, which is tightened in place and made very sharp at the end of the oil or gas drilling pipe 7 and made of a very hard material, seals and inserts the plugging seam of the oil or gas drilling pipe 7 being drilled and plugged into it. It serves to direct the movement of the drilling-plugging combinations 3, 4 that are moved in. The seam between the stuffing box 14 and the mandrel 13 is sealed with compressed oil packing. As the drilling proceeds, the large pieces which are drilled and separated from the oil or gas drilling pipe 7 remain in the drilling plugging assembly 3, 4.

Monitoring and control of the valve can be accomplished in the following manner:

1. Use known processing and automation techniques.

2. Measure the change in the magnetic field of the system by sensors. The change in the magnetic field is caused by changes in quantities such as flow velocity, flow direction, temperature, pressure, stability, for example. The change in the magnetic field is measured electrically as a change in several resistors, the several resistors being a computer directed and integrated transistor, the operation of the valve being controlled by the limit values encoded in the computer. The underwater peripheries of the valves and changes in them can also be monitored through the method, with specific observations such as threats of terrorism being transmitted to the monitoring and control terminals.

3. Analyze and adjust quantities such as temperature, pressure, rotational speed and feedrate, and changes in these quantities measured by sensors at the tip of the drill and at the burrow.

The following manner is used to control the valve:

1. Independent valve controls, electrically connected: only one command is used to close the valve.

2. Direct or indirect controls from hydraulic valves.

3. Pneumatically operated hydraulic valve.

The operations can be connected manually or automatically, in which case the system is initiated by a safety device of the system that is closed independently. As measurands, temperature, gas content, pressure, flow rate, salt, mechanics, electrical techniques, or other such physical quantities that automatically issue a valve command even when manpower is unavailable, can be used.

The following sensors can be installed in the valve to indicate operating status.

1. Pressure sensor in a hydraulic container indicating that the valve has started and indicating the operating pressure of the oil.

2. Gauge indicating oil level indicating travel distance.

The amount of oil entering the cylinder represents the travel distance.

The pressure sensor on the return side of the cylinder indicates a return movement action.

3. The pressure sensor in the plugging cylinder indicates the plugging movement.

4. A sensor indicating the rotation of the drill is located in the drill target of the drill.

5. A sensor located at the tip of the drill can measure monitoring quantities.

The automatic data processing technique uses these quantities to form an image on the computer terminal detailing the operation of the valve.

Claims (40)

A valve arrangement and system for blocking oil and / or gas drilling pipes, Hydraulic cylinder (1), piston (2), partially hollow drilling cylinder (3), hollow plugging cylinder (4), drill (5), box clamps (6), power source (8), blocking bolt (9) Pressure battery 10, hydraulic container 11 with lines, frame 12, mandrel 13, mechanism for using hydrostatic hydraulic pressure, and an automatic control and monitoring system, characterized by Valve arrangement and system for blocking oil and / or gas drilling pipes. The method of claim 1, The end of the drilling cylinder 3 is shaped to have a ball shape and has a blade that is hydraulically protruded or pulled backwards, in which case the drilling cylinder 3 also acts as the plugging cylinder 4. Characterized in that the device. The method of claim 1, The drilling cylinder 3 is shaped to have a conical shape, with a dynamic drill size adjuster, in which case the plugging cylinder 4 is also shaped to have a conical shape and locked using oil pressure and / or explosives. Device which can be. The method of claim 1, The device as characterized in that the drilling cylinder (3) is a cylinder with a blade on its end. The method according to claim 1 or 4, The plugging cylinder (4) is characterized in that it can be locked by oil pressure or explosives. The method according to claim 1, 3 or 4, A device characterized in that a drill is provided at the center of the end of the drilling cylinder (3). The method according to any one of claims 1 to 6, The drilling cylinder 3, the plugging cylinder 4, and the drill 5, through the piston 2, the mandrel 13, the hydraulic cylinder 1 and the hydraulic container 11 and the lines, press the pressure Apparatus characterized in that they receive their forward moving energy from the batteries (10). The method according to any one of claims 1 to 7, The drilling cylinder 3 and the drill 5, via the piston 2, the mandrel 13, the hydraulic motor used as the power source 8 and the hydraulic container 11 and the lines, the pressure battery ( 10) to receive their rotational movement energy from them. The method of claim 1, The device characterized in that the box clamps (6) can be installed around the pipe (7) from a plurality of sides due to their two-piece construction. The method according to claim 1 or 9, The inside of the box clamp (6) is characterized in that it has a conical shape and has a thread. The method of claim 1, Apparatus characterized in that the blocking bolts (9) are positioned and locked in place by explosives or hydraulically. The method according to claim 1 or 11, wherein The device characterized in that the blocking bolt (9) is wider than the outermost oil and / or gas drilling pipe (7) and has a tapered V end. The method according to any one of claims 1 to 8, Characterized in that the drilling cylinder 3 and the plugging cylinder 4 have an outer diameter that is larger than the inner diameter of the oil or gas drilling pipe 7 to be blocked and smaller than the outer diameter of the oil or gas drilling pipe 7 to be blocked. Device. The method according to claim 1 or 3, When the drilling cylinder 3 starts to rotate, the blade of the drilling cylinder 3 is mechanically and / or hydraulically moved outwards, and mechanically into the drilling cylinder 3 when the direction of rotation is changed. And / or hydraulically drawn. According to claim 1, 2, 3, 4, 6, 7, 8, 13 or 14, Grinding surface is provided on the outside of the drilling cylinder (3). According to claim 1, 3, 4, 6, 7, 8, 13, 14 or 15, The drilling cylinder (3) can also act as a plugging cylinder (4), in which the expansion of the plugging cylinder (4) is generated hydraulically or by explosives. The method according to any one of claims 1 to 16, Said drilling cylinder (3) and plugging cylinder (4) are located on the same side or on different sides of the oil and / or gas drilling pipes (7). The method according to any one of claims 1 to 17, Drilling units are located on opposite sides of the oil and / or gas drilling pipes so that drilling is continuously performed from the other sides of the oil and / or gas drilling pipes, as in the case of plugging. Device. The method according to any one of claims 1 to 17, Three or more drilling units are located on entirely different sides of the oil and / or gas drilling pipes, so that drilling takes place continuously from the other sides of the oil and / or gas drilling pipes, as in the case of plugging. Device. The method according to any one of claims 1 to 19, Apparatus characterized in that the device can be installed on a so-called plate and oil and / or gas drilling system. The method according to any one of claims 1 to 19, Even in aquatic conditions, the hydrostatic hydrostatic pressure can be converted to energy used in the system by a separate mechanism. The method according to any one of claims 1 to 21, By measuring a change in the magnetic field of the system, the oil and / or gas drilling unit and the robot and its surroundings can be continuously monitored and then the action required for the change can be performed. The method of claim 22, Wherein the change in the magnetic field, caused by a change in flow rate, flow direction, temperature, pressure, stability or surrounding material, can be measured electrically. The method of claim 23, Electrical observation is made with the help of resistors, and then the change in the resistors and transistors and the observation are collected by a computer in an integrated manner. The method according to any one of claims 22 to 24, wherein Information collected on the computer by the measuring instruments is incorporated into coded limit values, the coded limit values controlling the operation of the valve and then forwarded to a monitoring and control terminal. The method according to any one of claims 1 to 19, Wherein the pressure created by causing an explosion in the heavy cylinder can be converted to energy used in the system via the conductors. The method according to any one of claims 1 to 19 and 26, The air pressure generated by the explosion is directed into the hydraulic container directly or through a separate central container. The method according to any one of claims 1 to 19, 26 and 27, In the weight cylinder there are provided two axially parallel pistons, said two axially parallel pistons being located on different sides of the explosive material. The method according to any one of claims 1 to 19, Wherein the required energy can be obtained through a separate joint from the negative pressure or the excess pressure created in the hole drilled from the bottom of the oil or gas drilling pipe. The method according to any one of claims 1 to 19 and 28, And the box clamps as shown in Fig. 8 are fixed to the joint. The method according to any one of claims 1 to 30, The apparatus, in addition to the parts mentioned in claim 1, comprises a stuffing box 14, a tighter 15, blocking locks 16, plain bearings 17, compressed oil packing 18 And a locking groove (19) and a frame groove (20). The method of claim 1 or 31, A seam drilled and plugged to block the external oil or gas drilling pipe 7 is sealed with a stuffing box 14 made of hard material, which is very sharp at one end and oil or gas drilling Device characterized in that it is shaped in the form of a pipe (7). The method of claim 1, 31 or 32, The device characterized in that the stuffing box (14) can be tightened in place manually or automatically by means of a flat bearing (17) with a chrome strip and a stuffing box tightener (15) with external threads. The method according to claim 1, 31, 32 or 33, With the blocking locks 16 being pulled out of the frame 12 of the device, the tightening groove 15 of the stuffing box is brought into the fastening groove 19 when the tighter 15 of the stuffing box reaches a fixed depth. Device which can be fastened by). The method according to claim 1, 31, 32, 33 or 34, The cylindrical inner surface of the frame 12 is at a distance from the oil or gas drilling pipe 7 at which the end with the circular transverse cross section of the stuffing box 14 reaches when the stuffing box 14 is tightened. And a frame groove (20) formed to extend around the cylindrical shape. The method according to any one of claims 1 to 31 to 35, The drill 5 or mandrel 13 is surrounded by a compressed oil packing 18 and compressed oil used as energy is combined with the compressed oil packing 18 in a drilling-plugging combination 3, 4, 5 or And spaced apart from the head portions thereof. The method according to any one of claims 1 to 21 and 26 to 36, The device may be operated by integrating quantities such as flow rate, flow direction, temperature, pressure, stability and material as measured by computer programs and by sensors and other gauges and peripherals located in other parts of the device or Device that can be controlled. The method according to any one of claims 1 to 37, Information stored via various sensors and other gauges in connection with maintenance needs of the device and plugging process can be communicated to the control center via computer and satellite. The method according to any one of the preceding claims, In order to extinguish the fire during plugging or after plugging is finished, compressed extinguishing material such as liquid nitrogen, for example, can be supplied through a drilled hole from the top of the plugging unit or plugging units via a separate joint. Device. The method of claim 39, And drilling the hole and supplying the extinguishing material may be performed simultaneously or separately in association with the apparatus for performing the actual plugging.