CN209761388U - An Intelligent Grouting Early Warning System for Drilling Operations - Google Patents

Abstract

The utility model relates to the technical field of drilling monitoring and control, and discloses an intelligent grouting early warning system for drilling operations. The intelligent grouting early warning system includes a grouting tank, a grouting tank, a grouting pump, a first liquid level gauge, a second liquid level gauge, an intrinsically safe inductive proximity switch sensor, a signal acquisition control box, an electric control cabinet and a man-machine interactive device. Through the invention of the utility model, not only can the actual grouting amount of each column be automatically measured, the results displayed and the mud overflow/leakage warning can be carried out during the drilling process, but also the automatic, precise and quantifiable can be carried out during the drilling process Ground grouting control, so that the wellbore can always maintain sufficient mud liquid column pressure, to ensure that the formation fluid will not enter the wellbore, avoid overflow and blowout phenomenon due to human error, so as to overcome the existing problems in the existing drilling operation process The disadvantages such as the need for manual guarding, error-prone manual grouting, and difficulty in quantitative control ensure the safety of drilling construction.

Description

An Intelligent Grouting Early Warning System for Drilling Operations

technical field

The utility model belongs to the technical field of drilling monitoring and control, in particular to an intelligent grouting early warning system for drilling operations.

Background technique

In oil field drilling operations, blowout is one of the most catastrophic accidents, and the main reason for blowout is that the liquid column pressure in the wellbore cannot balance the formation pressure, which leads to formation fluid entering the well, ranging from overflow to blowout. Therefore, in order to balance the formation pressure, sufficient mud liquid column pressure must be maintained in the wellbore. At present, the commonly used method is to manually start the mud pump for grouting each time a certain number of drill pipes are pulled out. This method has many disadvantages: (1) The driller must remember the number of drill pipes to be pulled out, and the human factor is large, and it is easy to make mistakes (2) The amount of grouting cannot be measured in time, which leads to the inability to timely and accurately judge the underground situation, which is the most important; (3) The personnel on duty are in a state of fatigue for a long time, and are prone to misremembering, omission and untimely etc. Security risks. At present, it is only possible to judge whether a kick or lost circulation occurs manually by observing the return amount of drilling fluid at the mud outlet.

The current on-the-job management system requires that from the opening of oil and gas layers to the completion of the well, there must be a special person on the post to observe the changes in the liquid level of the wellhead and the circulation pool, to find the overflow through manual observation, and to manually control the grouting, manual measurement, Calculation and recording, this will lead to long-term fatigue, omissions and calculation errors of the staff on duty, etc., there are safety hazards such as untimely calculation or recording, inaccuracy, and inability to discover risks in time, that is, due to human subjective factors, it is easy to cause errors, and there are large Security risks. In addition, grouting requires manual operation, and it is difficult to quantitatively control the amount of grouting.

Utility model content

In order to solve the disadvantages of manual on-duty, error-prone manual grouting and difficult quantitative control existing in the existing drilling operation process, the purpose of the utility model is to provide an intelligent grouting early warning system for drilling operations.

The technical scheme adopted in the utility model is:

An intelligent grouting early warning system for drilling operations, including a grouting tank, a grout return tank, a grouting pump, a first liquid level gauge, a second liquid level gauge, an intrinsically safe inductive proximity switch sensor, a signal acquisition control box, an electric Control cabinet and human-computer interaction equipment, wherein the first liquid level gauge is arranged in the grouting tank, the second liquid level gauge is arranged in the grout return tank, and the intrinsically safe inductive proximity switch The sensor is arranged on the crosshead cover plate of the grouting pump, one side of the power output transmission shaft or the position of the pump head, and the signal acquisition control box is built with a PLC programmable logic controller, a pump-on relay and a pump-off relay;

The slurry inlet end of the grouting pump is connected to the bottom of the inner cavity of the grouting tank, the slurry outlet end of the grouting pump is used to communicate with the well shaft of the drilling platform system, and one end of the grout return tank is used to communicate with the upper part of the well shaft , the other end of the grout return tank communicates with the grout tank;

The first liquid level gauge is communicatively connected to the first input end of the PLC programmable logic controller, the second liquid level gauge is communicatively connected to the second input end of the PLC programmable logic controller, and the intrinsically safe Type inductive proximity switch sensor is electrically connected to the third input terminal of the PLC programmable logic controller, and the first output terminal of the PLC programmable logic controller is electrically connected to the coil branch of the open pump relay, and the open pump relay The normal branch circuit of the pump relay is electrically connected to the pump opening signal terminal corresponding to the grouting pump on the electric control cabinet, and the second output terminal of the PLC programmable logic controller is electrically connected to the coil branch of the pump closing relay. The normally closed branch of the pump off relay is electrically connected to the pump off signal terminal on the electric control cabinet and corresponding to the grouting pump, and the PLC programmable logic controller is also electrically connected to the human-computer interaction device ;

The motor connection terminal of the electric control cabinet is electrically connected to the grouting pump, and the operation signal connection terminal on the electric control cabinet corresponding to the grouting pump is electrically connected to the fourth input terminal of the PLC programmable logic controller.

Optimally, it also includes a winch sensor and a suspension load sensor, wherein the drawworks sensor is used to be arranged on the drawworks of the drilling platform system, and the suspension load sensor is used to be arranged on the hook of the drilling platform system;

The winch sensor is communicatively connected to the fifth input terminal of the PLC programmable logic controller, and the suspension load sensor is communicatively connected to the sixth input terminal of the PLC programmable logic controller.

Specifically, the winch sensor adopts a winch encoder of model SCJ-2, and/or the suspension weight sensor adopts a suspension weight pressure transmitter of model CSY-B.

Optimally, the number of the grouting pumps is three, and the intrinsically safe inductive proximity switch sensors are respectively configured in a one-to-one correspondence.

Specifically, the first liquid level gauge or the second liquid level gauge respectively adopts a liquid level sensor of the type JC-1900-5.

Specifically, the PLC programmable logic controller adopts a PLC device with a model number of DVP32EH00R3-L.

Specifically, the electric control cabinet adopts a general-purpose electric control cabinet modeled as KQK-3N-R2/3-45-001/S.

Specifically, the human-computer interaction device is a computer or a smart phone.

The beneficial effects of the utility model are:

(1) The invention provides a new type of unattended monitoring system that can realize automatic grouting and automatic identification and early warning of overflow/leakage during drilling operations, that is, it can not only monitor the actual grouting of each column during the drilling process It can also carry out automatic, precise and quantifiable grouting control during the drilling process, so that sufficient mud liquid column pressure can always be maintained in the wellbore to ensure formation The fluid will not enter the wellbore, avoiding overflow and blowout due to human error, so as to overcome the disadvantages of manual on-duty, manual grouting, error-prone and quantitative control in the existing drilling operation process, and ensure the safety of drilling construction ;

(2) By configuring the winch sensor and the suspension weight sensor, the system can also realize the purpose of automatically calculating the number of drill strings in combination with the existing conventional methods, and further improve the automation of the system.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a structural schematic diagram of the intelligent grouting early warning system provided by the utility model.

Fig. 2 is a schematic diagram of the internal electrical wiring of the signal acquisition control box provided by the utility model.

Fig. 3 is a schematic diagram of the existing drilling and tripping operation process provided by the utility model.

In the above drawings: 1-grouting tank; 2-returning grout tank; 3-grouting pump; 4-first liquid level gauge; 5-second liquid level gauge; 6-intrinsically safe inductive proximity switch sensor; 7- Signal acquisition control box; 701-PLC programmable logic controller; 702-open pump relay; 703-close pump relay; 8-electric control cabinet; 801-operation signal terminal; 9-human-computer interaction equipment; 10-winch sensor ; 11-suspension load sensor; 20-drilling platform system; 21-wellbore; 22-drawworks.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further elaborated. It should be noted here that the descriptions of these embodiments are used to help understand the utility model, but are not intended to limit the utility model. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the present invention. However, the invention may be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.

It will be understood that, although the terms first, second etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one unit from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of example embodiments of the present invention.

It should be understood that the term "and/or" in this article is only an association relationship describing associated objects, indicating that there may be three relationships, for example, A and/or B may mean: A exists alone, B exists alone, and at the same time There are three situations of A and B. The term "/and" in this article describes another associated object relationship, which means that there can be two relationships, for example, A/ and B, which can mean: A exists alone, and A and B exist alone In both cases, in addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.

It will be understood that when an element is referred to as being "connected," "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements present. Other words used to describe the relationship between elements should be interpreted in a similar fashion (e.g., "between" versus "directly between," "adjacent" versus "directly adjacent," etc.) .

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments of the present invention. As used herein, the singular forms "a", "an" and "the" are intended to include plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprises", "comprises", "comprises" and/or "comprises" when used herein designate the existence of stated features, integers, steps, operations, elements and/or components, And it does not exclude the existence or addition of one or more other features, numbers, steps, operations, units, components and/or their combinations.

It should also be noted that in some alternative implementations, the functions/acts may occur out of the order noted in the figures. For example, two figures shown in succession may, in fact, be executed substantially concurrently or may sometimes be executed in the reverse order, depending upon the functions/acts involved.

In the following description specific details are provided to facilitate a thorough understanding of example embodiments. However, it would be understood by those of ordinary skill in the art that example embodiments may be practiced without these specific details. For example, systems may be shown in block diagrams in order not to obscure the examples in unnecessary detail. In other instances, well-known procedures, structures and techniques may not be shown in unnecessary detail in order not to obscure the example embodiments.

Embodiment one

As shown in Figures 1 to 3, the intelligent grouting early warning system for drilling provided by this embodiment includes a grouting tank 1, a grouting tank 2, a grouting pump 3, a first liquid level gauge 4, a second liquid level Meter 5, intrinsically safe inductive proximity switch sensor 6, signal acquisition control box 7, electric control cabinet 8 and human-computer interaction equipment 9, wherein, the first liquid level gauge 4 is arranged in the grouting tank 1, so The second liquid level gauge 5 is arranged in the grout return tank 2, and the intrinsically safe inductive proximity switch sensor 6 is arranged on the crosshead cover plate of the grouting pump 3, one side of the power output transmission shaft or The position of the pump head, the signal acquisition control box 7 has a built-in PLC (Programmable Logic Controller, programmable logic controller, which uses a type of programmable memory to store programs, so as to perform logic operations, sequence control, timing, counting and arithmetic Operation and other user-oriented instructions, and control various types of machinery or production processes through digital or analog input/output) programmable logic controller 701, pump on relay 702 and pump off relay 703.

The grouting end of the grouting pump 3 is connected to the bottom of the inner cavity of the grouting tank 1, the grouting end of the grouting pump 3 is used to communicate with the wellbore 21 of the drilling platform system 20, and one end of the grouting tank 2 is used for It communicates with the upper part of the shaft 21 , and the other end of the grout return tank 2 communicates with the grouting tank 1 .

The first liquid level gauge 4 is connected to the first input terminal (not shown in FIG. 2 ) of the PLC programmable logic controller 701 by communication, and the second liquid level gauge 5 is connected to the PLC programmable logic controller by communication. The second input end (not shown in Fig. 2) of device 701, described intrinsically safe inductive proximity switch sensor 6 is electrically connected to the third input end of described PLC programmable logic controller 701 (that is, PLC among Fig. 2 device pin X0/X1/X2), the first output end of the PLC programmable logic controller 701 (that is, the PLC device pin Y0 in Figure 2) is electrically connected to the coil branch of the pump open relay 702, so The normal branch circuit of the pump-on relay 702 is electrically connected to the pump-on signal terminal corresponding to the grouting pump 3 on the electric control cabinet 8, and the second output terminal of the PLC programmable logic controller 701 (that is, The PLC device pin Y1) in 2) is electrically connected to the coil branch of the pump off relay 703, and the normally closed branch of the pump off relay 703 is electrically connected to the electric control cabinet 8 and corresponds to the grouting pump 3 The pump off signal connection terminal, the PLC programmable logic controller 701 is also electrically connected to the human-computer interaction device 9 .

The motor connection terminal of the electric control cabinet 8 is electrically connected to the grouting pump 3, and the operation signal connection terminal 801 on the electric control cabinet 8 and corresponding to the grouting pump 3 is electrically connected to the PLC programmable logic controller 701 The fourth input terminal (ie, the PLC device pin X5 in Figure 2).

As shown in Figures 1 and 2, in the specific structure of the intelligent grouting early warning system, the grouting tank 1 is used to store the mud to be poured into the wellbore 21, wherein the first liquid level gauge 4 For real-time collection of the first mud level data in the tank, the first liquid level gauge 4 may be, but not limited to, a JC-1900-5 liquid level sensor. The slurry return tank 2 is used to guide the overflowed mud from the wellbore 21 back to the grouting tank 1, wherein the second liquid level gauge 5 is used to collect the second mud level in the tank in real time data, the second liquid level gauge 5 can also, but is not limited to, use a liquid level sensor with a model number of JC-1900-5. The grouting pump 3 is used to turn on/off the pump under the power-on/off control of the electric control cabinet 8, and guide the mud in the grouting tank 1 into the wellbore when the pump is turned on In 21, the number can be 2, that is, pump A and pump B, so that pump A can be used as the main pump, and pump B can be used as the backup pump to achieve the purpose of grouting in turn, prolong the life of the pump body and quickly grout. And it also ensures that if one of the pumps fails, the other pumps can still be used for grouting.

The intrinsically safe inductive proximity switch sensor 6 is used as a pump stroke (i.e., an instrument for measuring the reciprocating times of the grouting pump piston. Since reciprocating pumps are often used for grouting in drilling work, the reciprocating times of the piston rod is the same as that of the pump. Therefore, by calculating the reciprocating times of the piston rod per unit time, the pumped flow rate can be known, that is, the accumulated pumping times represent the total grouting volume sent into the wellbore, which is very useful for measuring the mud supply to the wellbore useful) raw data collector, so that the PLC programmable logic controller 701 can calculate the real-time grouting amount according to the collection results: (1) when the intrinsically safe inductive proximity switch sensor 6 is arranged on the crosshead cover plate When it is on, the reciprocating motion of the cross head drives the magnetic induction sheet to cut the magnetic field line of the sensor, and a switch signal can be generated, and then the PLC programmable logic controller 701 can calculate the pump speed through the transmission ratio (that is, the piston per unit time). rod reciprocating times) and real-time grouting amount; (2) when the intrinsically safe inductive proximity switch sensor 6 is arranged on one side of the power output transmission shaft, the switch signal can also be generated by cutting the magnetic force line principle, so that the PLC The programmable logic controller 701 can measure the rotating speed of the transmission shaft, and then calculate the pump speed and the real-time grouting amount according to the transmission ratio of the grouting pump 3; (3) when the intrinsically safe inductive proximity switch sensor 6 is arranged When the pump head is at the position, the switch signal can also be generated by using the principle of cutting magnetic force lines, so that the PLC programmable logic controller 701 can measure the speed of the pump head, and then calculate the pump speed and the pump speed according to the transmission ratio of the grouting pump 3 Real-time grout volume. In addition, if the number of the grouting pumps 3 is three, the intrinsically safe inductive proximity switch sensors 6 need to be configured in a one-to-one correspondence for each of the grouting pumps 3, so as to statistically start the corresponding grouting pumps 3. real-time grouting volume.

The conventional control functions of the signal acquisition control box 7 may include, but are not limited to, the following: (1) During the process of a series of tripping actions such as tripping out of the drill and unblocking, raising the height, lifting to the position and sitting in the stuck position, through the The PLC programmable logic controller 701, the pump-on relay 702, the pump-off relay 703 and the electric control cabinet 8 etc. automatically control the pump on/off of the grouting pump 3 to realize drilling operation. The purpose of automatic grouting, wherein the control method involved is an existing method or a non-innovative method that can be obtained based on conventional changes based on an existing method; The dimensional parameters of the returning slurry tank 2 (which can be burned into the PLC programmable logic controller 701 in advance), the first mud level data from the first liquid level gauge 4, the first mud level data from the first liquid level The second mud level data of meter 5 and/or the switch signal from the intrinsically safe inductive proximity switch sensor 6, etc., automatically measure the actual grouting amount of each column when tripping out, wherein the involved metering algorithm It is an existing algorithm or a non-innovative algorithm that can be modified based on the existing algorithm; (3) according to the obtained real-time grouting amount, through the PLC programmable logic controller 701, the pump open relay 702, the The pump off relay 703 and the electric control cabinet 8 etc. perform precise and quantifiable pump on/off control on the grouting pump 3 to achieve precise grouting during drilling operations, wherein the control method involved It is an existing method or a non-innovative method that can be obtained by making routine changes based on the existing method; (4) Calculate the real-time grouting difference based on the real-time grouting amount and the theoretical grouting amount of each column, and then send the real-time grouting difference to To the human-computer interaction device 9 for output display, wherein the calculation methods and output methods involved are existing methods or non-innovative methods that can be obtained based on existing methods through routine changes; (5) to the obtained The real-time grouting difference is accumulated and/or curve trend analysis is performed, and once it is found that the overflow warning trigger condition or the leakage warning trigger condition is met, a corresponding warning message is sent to the human-computer interaction device 9, wherein the accumulation method involved, Both the curve trend analysis method and the early warning method are existing methods or non-innovative methods that can be obtained by performing routine changes based on existing methods. For example, the curve trend analysis method can be exemplified as: (A) real-time grouting difference at zero point Fluctuates nearby, the up and down variation of the grouting difference curve is very small, and it is judged normal; (B) when the real-time grouting difference gradually decreases in the negative direction and is lower than the first threshold (which can be a preset value based on historical experience), It is determined that overflow occurs; (C) when the real-time grouting difference is gradually increasing and is higher than the second threshold (which may be a preset value based on historical experience), it is determined that leakage occurs. In addition, in the signal acquisition control box 7, the PLC programmable logic controller 701 is a core device for realizing the aforementioned conventional control functions, and it can be, but not limited to, adopt a PLC model of DVP32EH00R3-L as shown in Figure 2 devices; the pump-on relay 702 and the pump-off relay 703 can be realized by existing conventional relays.

The electric control cabinet 8 is used to control the power on/off of the grouting pump 3 under the control of the signal acquisition control box 7, so as to realize the corresponding purpose of turning on/off the pump, and send information to the signal acquisition control box 7. The control box 7 feeds back the operating signal of the grouting pump 3 (through the operating signal terminal 801), which can be, but not limited to, adopt a general-purpose electric control cabinet whose model is KQK-3N-R2/3-45-001/S . The human-computer interaction device 9 is used to provide a human-computer interaction interface, such as a HIM interface (that is, a human-machine interface developed by Siemens), so as to realize the output and display purposes of various monitoring data or early warning messages, etc., which can but Not limited to electronic devices such as computers or smartphones. Furthermore, said wellbore 21 is a common term in existing drilling platform systems.

Therefore, through the detailed structural description of the aforementioned intelligent grouting early warning system, not only the actual grouting volume of each column during the drilling process can be automatically measured, the results displayed and the mud overflow/loss warning can be carried out, but also the automation can be carried out during the drilling process. , Precise and quantifiable grouting control, so that the wellbore can always maintain sufficient mud liquid column pressure, to ensure that the formation fluid will not enter the wellbore, avoid overflow and blowout due to human error, so as to overcome the existing During the drilling operation, there are disadvantages such as the need for manual on-duty, manual grouting, error-prone and difficult quantitative control, etc., to ensure the safety of drilling construction.

Optimally, it also includes a winch sensor 10 and a suspension load sensor 11, wherein the drawworks sensor 10 is used to be arranged on the drawworks 22 of the drilling platform system 20, and the suspension load sensor 11 is used to be arranged on the large surface of the drilling platform system 20 hook (not shown in Figure 1); the winch sensor 10 is communicatively connected to the fifth input terminal (not shown in Figure 2) of the PLC programmable logic controller 701, and the suspension load sensor 11 is communicatively connected to the electrical Connect to the sixth input terminal of the PLC programmable logic controller 701 (not shown in FIG. 2 ).

As shown in Figure 1, the winch sensor 10 and the suspended load sensor 11 are common equipment used in the drilling operation process, and the corresponding sensor data collected by them can be used to make the PLC programmable logic control The device 701 can automatically identify and judge a series of tripping actions based on the aforementioned sensor data, such as the state of tripping out and unblocking, the lifting degree, the lifting position, and the jamming (the existing conventional workflow shown in Figure 3), and then realize the The above-mentioned purpose of automatically counting the number of drill strings when in place. Wherein, described winch sensor 10 can but not be limited to adopt the winch encoder that model is SCJ-2, thus also can also obtain lifting stroke according to the sensor data from described winch sensor 10, so that judge whether to mention position; The suspension weight sensor 11 may be, but not limited to, adopt a suspension weight pressure transmitter whose model is CSY-B. In addition, both the winch 22 and the hook are commonly used terms in existing drilling platform systems, wherein the drawworks 22 is connected to the hook through traveling block transmission.

The automatic identification and judgment methods mentioned above are all existing methods or non-innovative methods that can be obtained by making routine changes based on existing methods. For example, the actual grouting amount of each column of drill pipe after tripping out can be obtained, but not limited to, according to the following existing conventional steps: S101. At the initial moment of drill pipe tripping, the grouting measurement result corresponding to the drill pipe of this column is initially zero; S102. During the drilling process of the drill pipe, judge whether it is stuck in the following manner: after detecting the heavy-load lifting signal from the hook, obtain the change of the suspended weight according to the sensor data from the suspended load sensor 11, and obtain the change of the suspended weight according to the The sensor data of 10 acquires the winch speed. If it is found that the suspended weight has changed from heavy load to light load but the winch speed is zero, it is determined that the position of the hook has not changed and a seat jam occurs. If it is found that the suspended weight has changed from light load to heavy load and It is determined that the position of the hook has changed, and it is a state of unblocking; S103. If a jam is found, start the grouting pump 3 for grouting until it is found that it is full of grout, and according to the mud level change data from the two liquid level gauges and The original collected data from the intrinsically safe inductive proximity switch sensor 6 is used for real-time grouting measurement; S104. At the moment when the drill pipe is pulled out, the grouting measurement result corresponding to the column of drill pipe is used as the actual grouting amount.

Therefore, through the configuration of the aforementioned winch sensor 10 and the suspension weight sensor 11, the purpose of the system to automatically calculate the number of drill strings can also be realized in combination with existing conventional methods, and the degree of automation of the system can be further improved.

In summary, adopting the intelligent grouting early warning system for drilling operations provided by this embodiment has the following technical effects:

(1) This embodiment provides a new type of unattended monitoring system that can realize automatic grouting and automatic identification and early warning of overflow/leakage during drilling operations, that is, it can not only monitor the actual grouting of each column during the drilling process It can also carry out automatic, precise and quantifiable grouting control during the drilling process, so that sufficient mud liquid column pressure can always be maintained in the wellbore to ensure formation The fluid will not enter the wellbore, avoiding overflow and blowout due to human error, so as to overcome the disadvantages of manual on-duty, manual grouting, error-prone and quantitative control in the existing drilling operation process, and ensure the safety of drilling construction ;

(2) By configuring the winch sensor and the suspension weight sensor, the system can also realize the purpose of automatically calculating the number of drill strings in combination with the existing conventional methods, and further improve the automation of the system.

The multiple embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may Located in one place, or can be distributed to multiple network elements. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. It can be understood and implemented by those skilled in the art without any creative efforts.

Through the above description of the implementations, those skilled in the art can clearly understand that each implementation can be implemented by means of software plus a necessary general hardware platform, and of course also by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products can be stored in computer-readable storage media, such as ROM/RAM, magnetic discs, optical discs, etc., including several instructions to make a computer device execute the methods described in various embodiments or some parts of the embodiments.

The above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be applied to the foregoing embodiments The technical solution described in the example shall be modified, or some of the technical features shall be equivalently replaced. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Finally, it should be noted that the utility model is not limited to the above optional embodiments, and anyone can obtain other various forms of products under the inspiration of the utility model. The above specific implementation methods should not be understood as limiting the protection scope of the present utility model. The protection scope of the present utility model should be defined in the claims, and the description can be used to interpret the claims.

Claims (8)

1. An intelligent grouting early warning system for drilling operations, characterized in that it includes a grouting tank (1), a grout return tank (2), a grouting pump (3), a first liquid level gauge (4), a second liquid level gauge Level gauge (5), intrinsically safe inductive proximity switch sensor (6), signal acquisition control box (7), electric control cabinet (8) and human-computer interaction equipment (9), wherein, the first liquid level gauge (4) Arranged in the grouting tank (1), the second liquid level gauge (5) is arranged in the grout return tank (2), and the intrinsically safe inductive proximity switch sensor (6) is arranged On the crosshead cover plate of the grouting pump (3), one side of the power output transmission shaft or the position of the pump head, the signal acquisition control box (7) is equipped with a PLC programmable logic controller (701), a pump-on Relay (702) and off pump relay (703); The grouting end of the grouting pump (3) is connected to the bottom of the inner cavity of the grouting tank (1), and the grouting end of the grouting pump (3) is used to communicate with the wellbore (21) of the drilling platform system (20), One end of the grout returning tank (2) is used to communicate with the upper part of the shaft (21), and the other end of the grout returning tank (2) is connected to the grouting tank (1); The first liquid level gauge (4) is communicatively connected to the first input end of the PLC programmable logic controller (701), and the second liquid level gauge (5) is communicatively connected to the PLC programmable logic controller ( 701), the intrinsically safe inductive proximity switch sensor (6) is electrically connected to the third input of the PLC programmable logic controller (701), and the PLC programmable logic controller (701 ) is electrically connected to the coil branch of the pump-on relay (702), and the normal branch of the pump-on relay (702) is electrically connected to the electric control cabinet (8) and connected to the grouting pump (3) corresponding to the pump-on signal connection terminal, the second output end of the PLC programmable logic controller (701) is electrically connected to the coil branch of the pump-off relay (703), and the pump-off relay (703) The normally closed branch of the electric control cabinet (8) is electrically connected to the pump-off signal terminal corresponding to the grouting pump (3), and the PLC programmable logic controller (701) is also electrically connected to the human computer interaction device (9); The motor connection terminal of the electric control cabinet (8) is electrically connected to the grout pump (3), and the operation signal connection terminal (801) on the electric control cabinet (8) corresponding to the grout pump (3) is electrically connected to the grout pump (3). Connect the fourth input end of the PLC programmable logic controller (701). 2. A kind of intelligent grouting early warning system for drilling operation as claimed in claim 1, is characterized in that: also comprise winch sensor (10) and suspension weight sensor (11), wherein, described winch sensor (10) uses Arranged on the drawworks (22) of the drilling platform system (20), the suspension load sensor (11) is used to be arranged on the hook of the drilling platform system (20); The winch sensor (10) is communicatively connected to the fifth input terminal of the PLC programmable logic controller (701), and the suspended weight sensor (11) is communicatively connected to the fifth input terminal of the PLC programmable logic controller (701). The sixth input terminal. 3. An intelligent grouting early warning system for drilling operations according to claim 2, characterized in that: the winch sensor (10) adopts a drawworks encoder of model SCJ-2, and/or the suspension weight The sensor (11) adopts a suspended weight pressure transmitter whose model is CSY-B. 4. An intelligent grouting early warning system for drilling operations as claimed in claim 1, characterized in that: the number of the grouting pumps (3) is 3 and the intrinsically safe pumps are configured in a one-to-one correspondence Inductive proximity switch sensor (6). 5. An intelligent grouting early warning system for drilling operations as claimed in claim 1, characterized in that: the first liquid level gauge (4) or the second liquid level gauge (5) adopts models of Liquid level sensor for JC-1900-5. 6. An intelligent grouting early warning system for drilling operations as claimed in claim 1, characterized in that: said PLC programmable logic controller (701) adopts a PLC device whose model is DVP32EH00R3-L. 7. An intelligent grouting early warning system for drilling operations according to claim 1, characterized in that: the electric control cabinet (8) adopts a model KQK-3N-R2/3-45-001/S Universal electric control cabinet. 8. An intelligent grouting early warning system for drilling operations according to claim 1, characterized in that: the human-computer interaction device (9) is a computer or a smart phone.