Alarm device and method for petroleum drilling

Abstract

The invention discloses an alarm device and method for petroleum drilling, and relates to the technical field of petroleum, and a decoding circuit comprises a request module which is used for obtaining an alarm request of a user and generating a corresponding alarm instruction according to the alarm request, and is used for obtaining a termination request of the user and generating a termination instruction according to the termination request; the main control module is used for acquiring the alarm instruction or the termination instruction and generating a corresponding alarm action signal or termination action signal; the alarm module is used for acquiring the alarm action signal and executing the alarm action signal to circularly send out an alarm signal, and is used for acquiring a termination action signal and executing the termination action signal to terminate the alarm signal; the alarm action signal corresponds to a unique alarm signal, and different alarm action signals correspond to different alarm signals. According to the invention, all workers in a well site can accurately receive a correct alarm signal and can quickly make response and response measures.

Description

Technical Field

[0001] The invention relates to the field of petroleum technology, and in particular to an alarm device and method for oil drilling. Background Art

[0002] At present, in order to deal with various dangerous situations in the process of oilfield drilling production operations, an air whistle alarm plan has been formulated. The driller manually sounds the air whistle for a certain length and frequency, so that the on-site staff can get the dangerous information at the first time and deal with it quickly. However, with the continuous increase of drilling equipment, the driller has to operate other equipment in the process of manually sounding the air whistle alarm, which inevitably leads to mistakes. Summary of the invention

[0003] In view of this, an embodiment of the present invention provides an alarm device or method for oil drilling to solve the problem in the prior art that the driller has to operate other types of equipment during the process of manually issuing an air whistle alarm, which may inevitably lead to mistakes.

[0004] According to a first aspect, an embodiment of the present invention provides an alarm device for oil drilling, comprising:

[0005] A request module, used to obtain an alarm request from a user and generate a corresponding alarm instruction according to the alarm request, and used to obtain a termination request from a user and generate a termination instruction according to the termination request;

[0006] A main control module, used to obtain the alarm instruction or the termination instruction, and generate a corresponding alarm action signal or a termination action signal;

[0007] The alarm module is used to obtain the alarm action signal and execute the alarm action signal to cyclically send out the alarm signal, and to obtain the termination action signal and execute the termination action signal to terminate the alarm signal; the alarm action signal corresponds to a unique alarm signal, and different alarm action signals correspond to different alarm signals.

[0008] Further, the device specifically includes: the request module is an operation panel with multiple switch buttons, each switch button corresponds to an alarm request / termination request;

[0009] The main control module is a PLC module connected to the operation panel;

[0010] The alarm module comprises an intermediate relay, a solenoid valve, an air source and an air whistle. The intermediate relay is connected to the solenoid valve and the PLC module, and the air source is connected to the solenoid valve and the air whistle.

[0011] Furthermore, the device also includes a switching power supply electrically connected to the PLC module.

[0012] Furthermore, the PLC module adopts Siemens S7-200 module.

[0013] Furthermore, each alarm is programmed with an interlock function.

[0014] Furthermore, when the alarm ends, the air horn will send out an alarm end signal only when the alarm selection switch is stopped and the end signal button is pressed.

[0015] Furthermore, the operation panel part is composed of an emergency alarm switch, an evacuation alarm switch, a fire alarm switch, a well control alarm switch and an end signal button switch.

[0016] Furthermore, the PLC module, switching power supply, intermediate relay, solenoid valve and air horn are installed in an explosion-proof electric control box.

[0017] Furthermore, a reactance filter is installed in the explosion-proof electric control box.

[0018] The embodiment of the present invention also provides an alarm method for oil drilling, comprising:

[0019] When an emergency occurs and first aid is needed, the operator activates the operation panel;

[0020] After the PLC module receives the alarm command / terminate command, it controls the duration and time interval of the intermediate relay to alarm or terminate the alarm. The intermediate relay controls the solenoid valve coil to close / disconnect the air source and the air circuit is connected, driving the air whistle to send / terminate the alarm signal.

[0021] The alarm device and method for oil drilling provided by the present invention can greatly reduce the operating intensity of the equipment by the driller. Since the automatic cycle alarm function can be realized, after the alarm function is activated, the driller can concentrate on operating the winch and other equipment, and the air whistle alarm can be made more accurate, standard and normative, and the errors and irregularities that occur when the air whistle alarm is used manually can be eliminated. In this way, in an emergency, all the staff at the well site can accurately receive the correct alarm signal and can quickly respond and take countermeasures. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the present invention in any way. In the accompanying drawings:

[0023] Figure 1 This is one of the structural schematic diagrams of an alarm device for oil drilling according to an embodiment of the present application;

[0024] Figure 2 This is a second structural schematic diagram of an alarm device for oil drilling according to an embodiment of the present application;

[0025] Figure 3 This is a third structural schematic diagram of an alarm device for oil drilling according to an embodiment of the present application;

[0026] Figure 4 This is a fourth structural schematic diagram of an alarm device for oil drilling according to an embodiment of the present application;

[0027] Figure 5 This is the fifth structural schematic diagram of the alarm device for oil drilling according to the embodiment of the present application. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0029] At present, in order to deal with various dangerous situations during oilfield drilling and production operations, an air whistle alarm plan is formulated. The driller manually sounds the air whistle for a certain length and frequency, so that on-site staff can get the dangerous information at the first time and deal with it quickly. However, with the increasing number of drilling equipment, the driller has to operate other types of equipment during the manual air whistle alarm process, and it is inevitable that mistakes will be made in a hurry. How to make operators focus more on equipment operation in emergency conditions to avoid the possibility of misoperation is a technical problem that the industry urgently needs to solve.

[0030] In order to solve the above problems, an alarm device and method for oil drilling are provided in this embodiment. The device includes an electrical control part composed of an AC power supply, a PLC module, a switching power supply, an intermediate relay, a solenoid valve, an air source, and an air whistle. The operation panel part consists of: A emergency alarm switch, B evacuation alarm switch, C fire alarm switch, D well control alarm switch, and E end signal button switch. The operation panel is connected to the PLC module, and the PLC module is respectively connected to a 24V power supply, an intermediate relay, and a solenoid valve. The air source is respectively connected to the solenoid valve and the air whistle through an air pipeline.

[0031] Among them, the request module in the embodiment of the present invention is an operation panel that can be operated by the user. Based on the various switches provided on the operation panel, it realizes obtaining the alarm request and generating the corresponding alarm instruction according to the alarm request, and is used to obtain the user's termination request and generate the termination instruction according to the termination request. For example, A emergency alarm switch, B evacuation alarm switch, C fire alarm switch and D well control alarm switch can all obtain the user's corresponding alarm request and generate the corresponding alarm instruction, and E end signal button switch can allow the user to terminate the above alarm instruction, that is, generate a termination request and a termination instruction. The main control module is a PLC module, which is the core of the device. The alarm module is composed of an intermediate relay, a solenoid valve, an air source and an air whistle. The solenoid valve is used to control the air source, and the intermediate relay is controlled by the PLC module to trigger the solenoid valve. When the solenoid valve is turned on, the air source can drive the air whistle to generate an alarm signal.

[0032] The method includes: when an emergency situation occurs and first aid is needed, an operator starts a first aid alarm command switch A, and after a PLC module receives the control command, it controls the length of the pull-in time and the time interval of the intermediate relay according to a programmed program to realize its alarm, and after the intermediate relay controls the solenoid valve coil to pull in the air circuit and connects, it drives the air whistle to send out a first aid alarm signal.

[0033] Since the process requirements of this design require a small amount of program data, Siemens' small PLC module S7-200 is used, and its dedicated programming software STEP 7MicroWIN is used for programming. The programming is based on the length and number of air whistle sounds of each emergency alarm. For example, the alarm sound of the well control is "three short and one long". Through programming design, the PLC module is required to output a DC 24V signal to control the solenoid valve to ventilate three times for a short time, and then ventilate once for a long time, so that the air whistle sends out an alarm signal that meets the requirements, and can automatically repeat the alarm after a certain interval; and each alarm will not conflict with each other when selected. The interlocking function is designed in the program, that is, when an alarm is selected, other alarm switches will not work. Use of the green button: When the exercise is over, only by stopping the alarm selection switch and pressing the "E" button, the air whistle will sound three short alarm sounds to notify the well site staff to release the alarm. If the alarm selection switch is in use, this button will not work even if it is pressed, which prevents misoperation.

[0034] In the embodiment of the present invention, the driller's operating intensity on the equipment can be greatly reduced. Since the automatic cycle alarm function can be realized, after the alarm function is activated, the driller can concentrate on operating the winch and other equipment, and the air whistle alarm can be made more accurate, standard and normative, which can eliminate the errors and irregularities that occur when the air whistle alarm is used manually. In this way, in an emergency, all personnel at the well site can accurately receive the correct alarm signal and can quickly respond and take countermeasures.

[0035] Embodiment 1 :

[0036] like Figure 1 As shown, the alarm device for oil drilling in the embodiment of the present invention includes an electrical control part composed of an AC power supply 1, a PLC module 2, a switching power supply 3, an intermediate relay (including a coil 4 and a relay contact 5), a solenoid valve 6, an air source 7, and an air whistle 8. The operation panel 9 is composed of: A emergency alarm switch, B evacuation alarm switch, C fire alarm switch, D well control alarm switch, and E end signal button switch. The operation panel is connected to the PLC module 2, and the PLC module 2 is respectively connected to the switching power supply 3, the intermediate relay, and the solenoid valve 6. The intermediate relay is electrically connected to the solenoid valve 6, and the air source 7 is respectively connected to the solenoid valve 6 and the air whistle 8 through the air pipeline.

[0037] Among them, the request module in the embodiment of the present invention is an operation panel that can be operated by the user. Based on the various switches provided on the operation panel, it realizes obtaining the alarm request and generating the corresponding alarm instruction according to the alarm request, and is used to obtain the user's termination request and generate the termination instruction according to the termination request. For example, A emergency alarm switch, B evacuation alarm switch, C fire alarm switch and D well control alarm switch can all obtain the user's corresponding alarm request and generate the corresponding alarm instruction, and E end signal button switch can allow the user to terminate the above alarm instruction, that is, generate a termination request and a termination instruction. The main control module is a PLC module, which is the core of the device. The alarm module is composed of an intermediate relay, a solenoid valve, an air source and an air whistle. The solenoid valve is used to control the air source, and the intermediate relay is controlled by the PLC module to trigger the solenoid valve. When the solenoid valve is turned on, the air source can drive the air whistle to generate an alarm signal.

[0038] According to the alarm device for oil drilling of the embodiment of the present invention, when an emergency occurs and first aid is needed, the operator starts the A first aid alarm command switch. After receiving the control command, the PLC module controls the duration and time interval of the intermediate relay's attraction according to the programmed program to realize its alarm. After the intermediate relay controls the solenoid valve coil to attract the air circuit and connects, it drives the air whistle to send out a first aid alarm signal.

[0039] In this embodiment, since the design adopts Siemens' small PLC module S7-200 and uses its dedicated programming software STEP 7MicroWIN for programming, the programming is performed according to the requirements of each emergency alarm standard. In this way, the signals generated and sent are more standardized.

[0040] In this embodiment, the PLC module is required to output a DC 24V signal to control the solenoid valve to make the air whistle send out an alarm signal through programming design, and the alarm can be automatically repeated after a certain period of time.

[0041] In this embodiment, each alarm is programmed with an interlocking function, that is, after one alarm is activated, other alarm switches will not work, thus preventing misoperation.

[0042] In the present embodiment, when the alarm ends, the air horn will send the alarm end signal only by stopping the alarm selection switch and pressing the end signal button. If the alarm switch is in use, the end signal button will not work even if pressed, thus preventing misoperation.

[0043] In this embodiment, the electrical control part is installed with an inductive filter, and the electrical components such as the PLC module, switching power supply, intermediate relay, solenoid valve and air horn are installed in an explosion-proof electrical control box that meets the requirements to achieve the safety explosion-proof level of the drilling platform area.

[0044] In this embodiment, the electrical control part is equipped with an inductive filter, which can effectively absorb grid harmonics and improve the power factor of the system, thus playing a greater role in the safe operation of the system.

[0045] Embodiment 2

[0046] like Figure 2 As shown, the alarm device for oil drilling in the embodiment of the present invention includes an electrical control part composed of an AC power supply 1, a PLC module 2, a switching power supply 3, an intermediate relay (including a coil 4 and a relay contact 5), a solenoid valve 6, an air source 7, and an air whistle 8. The operation panel 9 is composed of: A emergency alarm switch, B evacuation alarm switch, C fire alarm switch, D well control alarm switch, and E end signal button switch. The operation panel is connected to the PLC module 2, and the PLC module 2 is respectively connected to the switching power supply 3, the intermediate relay, and the solenoid valve 6. The intermediate relay is electrically connected to the solenoid valve 6, and the air source 7 is respectively connected to the solenoid valve 6 and the air whistle 8 through the air pipeline.

[0047] Among them, the request module in the embodiment of the present invention is an operation panel that can be operated by the user. Based on the various switches provided on the operation panel, it realizes obtaining the alarm request and generating the corresponding alarm instruction according to the alarm request, and is used to obtain the user's termination request and generate the termination instruction according to the termination request. For example, A emergency alarm switch, B evacuation alarm switch, C fire alarm switch and D well control alarm switch can all obtain the user's corresponding alarm request and generate the corresponding alarm instruction, and E end signal button switch can allow the user to terminate the above alarm instruction, that is, generate a termination request and a termination instruction. The main control module is a PLC module, which is the core of the device. The alarm module is composed of an intermediate relay, a solenoid valve, an air source and an air whistle. The solenoid valve is used to control the air source, and the intermediate relay is controlled by the PLC module to trigger the solenoid valve. When the solenoid valve is turned on, the air source can drive the air whistle to generate an alarm signal.

[0048] According to the alarm device for oil drilling of the embodiment of the present invention, when an emergency occurs and first aid is needed, the operator starts the A first aid alarm command switch. After receiving the control command, the PLC module controls the duration and time interval of the intermediate relay's attraction according to the programmed program to realize its alarm. After the intermediate relay controls the solenoid valve coil to attract the air circuit and connects, it drives the air whistle to send out a first aid alarm signal.

[0049] In this embodiment, since the design adopts Siemens' small PLC module S7-200 and uses its dedicated programming software STEP 7MicroWIN for programming, the programming is performed according to the requirements of each emergency alarm standard. In this way, the signals generated and sent are more standardized.

[0050] In this embodiment, the PLC module is required to output a DC 24V signal to control the solenoid valve to make the air whistle send out an alarm signal through programming design, and the alarm can be automatically repeated after a certain period of time.

[0051] In this embodiment, each alarm is programmed with an interlocking function, that is, after one alarm is activated, other alarm switches will not work, thus preventing misoperation.

[0052] In the present embodiment, when the alarm ends, the air horn will send the alarm end signal only by stopping the alarm selection switch and pressing the end signal button. If the alarm switch is in use, the end signal button will not work even if pressed, thus preventing misoperation.

[0053] In this embodiment, the electrical control part is installed with an inductive filter, and the electrical components such as the PLC module, switching power supply, intermediate relay, solenoid valve and air horn are installed in an explosion-proof electrical control box that meets the requirements to achieve the safety explosion-proof level of the drilling platform area.

[0054] In this embodiment, the electrical control part is equipped with an inductive filter, which can effectively absorb grid harmonics and improve the power factor of the system, thus playing a greater role in the safe operation of the system.

[0055] Embodiment 3 :

[0056] like Figure 3 As shown, the alarm device for oil drilling in the embodiment of the present invention includes an electrical control part composed of an AC power supply 1, a PLC module 2, a switching power supply 3, an intermediate relay (including a coil 4 and a relay contact 5), a solenoid valve 6, an air source 7, and an air whistle 8. The operation panel 9 is composed of: A emergency alarm switch, B evacuation alarm switch, C fire alarm switch, D well control alarm switch, and E end signal button switch. The operation panel is connected to the PLC module 2, and the PLC module 2 is respectively connected to the switching power supply 3, the intermediate relay, and the solenoid valve 6. The intermediate relay is electrically connected to the solenoid valve 6, and the air source 7 is respectively connected to the solenoid valve 6 and the air whistle 8 through the air pipeline.

[0057] Among them, the request module in the embodiment of the present invention is an operation panel that can be operated by the user. Based on the various switches provided on the operation panel, it realizes obtaining the alarm request and generating the corresponding alarm instruction according to the alarm request, and is used to obtain the user's termination request and generate the termination instruction according to the termination request. For example, A emergency alarm switch, B evacuation alarm switch, C fire alarm switch and D well control alarm switch can all obtain the user's corresponding alarm request and generate the corresponding alarm instruction, and E end signal button switch can allow the user to terminate the above alarm instruction, that is, generate a termination request and a termination instruction. The main control module is a PLC module, which is the core of the device. The alarm module is composed of an intermediate relay, a solenoid valve, an air source and an air whistle. The solenoid valve is used to control the air source, and the intermediate relay is controlled by the PLC module to trigger the solenoid valve. When the solenoid valve is turned on, the air source can drive the air whistle to generate an alarm signal.

[0058] According to the alarm device for oil drilling of the embodiment of the present invention, when an emergency occurs and first aid is needed, the operator starts the A first aid alarm command switch. After receiving the control command, the PLC module controls the duration and time interval of the intermediate relay's attraction according to the programmed program to realize its alarm. After the intermediate relay controls the solenoid valve coil to attract the air circuit and connects, it drives the air whistle to send out a first aid alarm signal.

[0059] In this embodiment, since the design adopts Siemens' small PLC module S7-200 and uses its dedicated programming software STEP 7MicroWIN for programming, the programming is performed according to the requirements of each emergency alarm standard. In this way, the signals generated and sent are more standardized.

[0060] In this embodiment, the PLC module is required to output a DC 24V signal to control the solenoid valve to make the air whistle send out an alarm signal through programming design, and the alarm can be automatically repeated after a certain period of time.

[0061] In this embodiment, each alarm is programmed with an interlocking function, that is, after one alarm is activated, other alarm switches will not work, thus preventing misoperation.

[0062] In the present embodiment, when the alarm ends, the air horn will send the alarm end signal only by stopping the alarm selection switch and pressing the end signal button. If the alarm switch is in use, the end signal button will not work even if pressed, thus preventing misoperation.

[0063] In this embodiment, the electrical control part is installed with an inductive filter, and the electrical components such as the PLC module, switching power supply, intermediate relay, solenoid valve and air horn are installed in an explosion-proof electrical control box that meets the requirements to achieve the safety explosion-proof level of the drilling platform area.

[0064] In this embodiment, the electrical control part is equipped with an inductive filter, which can effectively absorb grid harmonics and improve the power factor of the system, thus playing a greater role in the safe operation of the system.

[0065] Embodiment 4

[0066] like Figure 4 As shown, the alarm device for oil drilling in the embodiment of the present invention includes an electrical control part composed of an AC power supply 1, a PLC module 2, a switching power supply 3, an intermediate relay (including a coil 4 and a relay contact 5), a solenoid valve 6, an air source 7, and an air whistle 8. The operation panel 9 is composed of: A emergency alarm switch, B evacuation alarm switch, C fire alarm switch, D well control alarm switch, and E end signal button switch. The operation panel is connected to the PLC module 2, and the PLC module 2 is respectively connected to the switching power supply 3, the intermediate relay, and the solenoid valve 6. The intermediate relay is electrically connected to the solenoid valve 6, and the air source 7 is respectively connected to the solenoid valve 6 and the air whistle 8 through the air pipeline.

[0067] Among them, the request module in the embodiment of the present invention is an operation panel that can be operated by the user. Based on the various switches provided on the operation panel, it realizes obtaining the alarm request and generating the corresponding alarm instruction according to the alarm request, and is used to obtain the user's termination request and generate the termination instruction according to the termination request. For example, A emergency alarm switch, B evacuation alarm switch, C fire alarm switch and D well control alarm switch can all obtain the user's corresponding alarm request and generate the corresponding alarm instruction, and E end signal button switch can allow the user to terminate the above alarm instruction, that is, generate a termination request and a termination instruction. The main control module is a PLC module, which is the core of the device. The alarm module is composed of an intermediate relay, a solenoid valve, an air source and an air whistle. The solenoid valve is used to control the air source, and the intermediate relay is controlled by the PLC module to trigger the solenoid valve. When the solenoid valve is turned on, the air source can drive the air whistle to generate an alarm signal.

[0068] According to the alarm device for oil drilling of the embodiment of the present invention, when an emergency occurs and first aid is needed, the operator starts the A first aid alarm command switch. After receiving the control command, the PLC module controls the duration and time interval of the intermediate relay's attraction according to the programmed program to realize its alarm. After the intermediate relay controls the solenoid valve coil to attract the air circuit and connects, it drives the air whistle to send out a first aid alarm signal.

[0069] In this embodiment, since the design adopts Siemens' small PLC module S7-200 and uses its dedicated programming software STEP 7MicroWIN for programming, the programming is performed according to the requirements of each emergency alarm standard. In this way, the signals generated and sent are more standardized.

[0070] In this embodiment, the PLC module is required to output a DC 24V signal to control the solenoid valve to make the air whistle send out an alarm signal through programming design, and the alarm can be automatically repeated after a certain period of time.

[0071] In this embodiment, each alarm is programmed with an interlocking function, that is, after one alarm is activated, other alarm switches will not work, thus preventing misoperation.

[0072] In the present embodiment, when the alarm ends, the air horn will send the alarm end signal only by stopping the alarm selection switch and pressing the end signal button. If the alarm switch is in use, the end signal button will not work even if pressed, thus preventing misoperation.

[0073] In this embodiment, the electrical control part is installed with an inductive filter, and the electrical components such as the PLC module, switching power supply, intermediate relay, solenoid valve and air horn are installed in an explosion-proof electrical control box that meets the requirements to achieve the safety explosion-proof level of the drilling platform area.

[0074] In this embodiment, the electrical control part is equipped with an inductive filter, which can effectively absorb grid harmonics and improve the power factor of the system, thus playing a greater role in the safe operation of the system.

[0075] Embodiment 5

[0076] like Figure 5 As shown, the alarm device for oil drilling in the embodiment of the present invention includes an electrical control part composed of an AC power supply 1, a PLC module 2, a switching power supply 3, an intermediate relay (including a coil 4 and a relay contact 5), a solenoid valve 6, an air source 7, and an air whistle 8. The operation panel 9 is composed of: A emergency alarm switch, B evacuation alarm switch, C fire alarm switch, D well control alarm switch, and E end signal button switch. The operation panel is connected to the PLC module 2, and the PLC module 2 is respectively connected to the switching power supply 3, the intermediate relay, and the solenoid valve 6. The intermediate relay is electrically connected to the solenoid valve 6, and the air source 7 is respectively connected to the solenoid valve 6 and the air whistle 8 through the air pipeline.

[0077] Among them, the request module in the embodiment of the present invention is an operation panel that can be operated by the user. Based on the various switches provided on the operation panel, it realizes obtaining the alarm request and generating the corresponding alarm instruction according to the alarm request, and is used to obtain the user's termination request and generate the termination instruction according to the termination request. For example, A emergency alarm switch, B evacuation alarm switch, C fire alarm switch and D well control alarm switch can all obtain the user's corresponding alarm request and generate the corresponding alarm instruction, and E end signal button switch can allow the user to terminate the above alarm instruction, that is, generate a termination request and a termination instruction. The main control module is a PLC module, which is the core of the device. The alarm module is composed of an intermediate relay, a solenoid valve, an air source and an air whistle. The solenoid valve is used to control the air source, and the intermediate relay is controlled by the PLC module to trigger the solenoid valve. When the solenoid valve is turned on, the air source can drive the air whistle to generate an alarm signal.

[0078] According to the alarm device for oil drilling of the embodiment of the present invention, when an emergency occurs and first aid is needed, the operator starts the A first aid alarm command switch. After receiving the control command, the PLC module controls the duration and time interval of the intermediate relay's attraction according to the programmed program to realize its alarm. After the intermediate relay controls the solenoid valve coil to attract the air circuit and connects, it drives the air whistle to send out a first aid alarm signal.

[0079] In this embodiment, since the design adopts Siemens' small PLC module S7-200 and uses its dedicated programming software STEP 7MicroWIN for programming, the programming is performed according to the requirements of each emergency alarm standard. In this way, the signals generated and sent are more standardized.

[0080] In this embodiment, the PLC module is required to output a DC 24V signal to control the solenoid valve to make the air whistle send out an alarm signal through programming design, and the alarm can be automatically repeated after a certain period of time.

[0081] In this embodiment, each alarm is programmed with an interlocking function, that is, after one alarm is activated, other alarm switches will not work, thus preventing misoperation.

[0082] In the present embodiment, when the alarm ends, the air horn will send the alarm end signal only by stopping the alarm selection switch and pressing the end signal button. If the alarm switch is in use, the end signal button will not work even if pressed, thus preventing misoperation.

[0083] In this embodiment, the electrical control part is installed with an inductive filter, and the electrical components such as the PLC module, switching power supply, intermediate relay, solenoid valve and air horn are installed in an explosion-proof electrical control box that meets the requirements to achieve the safety explosion-proof level of the drilling platform area.

[0084] In this embodiment, the electrical control part is equipped with an inductive filter, which can effectively absorb grid harmonics and improve the power factor of the system, thus playing a greater role in the safe operation of the system.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An alarm device for oil drilling, characterized in that: include: A request module, used to obtain an alarm request from a user and generate a corresponding alarm instruction according to the alarm request, and used to obtain a termination request from a user and generate a termination instruction according to the termination request; A main control module, used to obtain the alarm instruction or the termination instruction, and generate a corresponding alarm action signal or a termination action signal; The alarm module is used to obtain the alarm action signal and execute the alarm action signal to cyclically send out the alarm signal, and to obtain the termination action signal and execute the termination action signal to terminate the alarm signal; the alarm action signal corresponds to a unique alarm signal, and different alarm action signals correspond to different alarm signals.

2. The alarm device for oil drilling according to claim 1, characterized in that: The device specifically comprises: the request module is an operation panel with a plurality of switch buttons, each switch button corresponds to an alarm request / termination request; The main control module is a PLC module connected to the operation panel; The alarm module comprises an intermediate relay, a solenoid valve, an air source and an air whistle. The intermediate relay is connected to the solenoid valve and the PLC module, and the air source is connected to the solenoid valve and the air whistle.

3. The alarm device for oil drilling according to claim 1, characterized in that: The device also includes a switching power supply electrically connected to the PLC module.

4. The alarm device for oil drilling according to claim 1, characterized in that: The PLC module adopts Siemens S7-200 module.

5. The alarm device for oil drilling according to claim 1, characterized in that: Each alarm is programmed with an interlock function.

6. The alarm device for oil drilling according to claim 1, characterized in that: When the alarm ends, the air whistle will send out an alarm end signal only when the alarm selection switch is stopped and the end signal button is pressed.

7. The alarm device for oil drilling according to claim 1, characterized in that: The operation panel part is composed of emergency alarm switch, evacuation alarm switch, fire alarm switch, well control alarm switch and end signal button switch.

8. The alarm device for oil drilling according to claim 1, characterized in that: The PLC module, switch power supply, intermediate relay, solenoid valve and air horn are installed in an explosion-proof electric control box.

9. The alarm device for oil drilling according to claim 1, characterized in that: A reactance filter is installed in the explosion-proof electric control box.

10. An alarm method for oil drilling implemented based on the alarm device for oil drilling according to claim 2, characterized in that: include: When an emergency occurs and first aid is needed, the operator activates the operation panel; After the PLC module receives the alarm command / terminate command, it controls the duration and time interval of the intermediate relay to alarm or terminate the alarm. The intermediate relay controls the solenoid valve coil to close / disconnect the air source and the air circuit is connected, driving the air whistle to send / terminate the alarm signal.

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