CN118242142A - Underground working condition monitoring and early warning system and method - Google Patents

Abstract

The invention provides a monitoring and early warning system and a method for underground working conditions, wherein the system comprises at least one underground intelligent data processing device, a plurality of underground data acquisition devices and a ground device, each underground intelligent data processing device corresponds to at least one underground data acquisition device, the ground device is in communication connection with each underground intelligent data processing device, and each underground intelligent data processing device is in communication connection with the corresponding underground data acquisition device; the underground data acquisition device is used for acquiring geological characteristic parameters, the underground intelligent data processing device is used for analyzing according to the received geological characteristic parameters, acquiring alarm information and reporting the alarm information to the ground device. According to the underground working condition monitoring and early warning system and method provided by the embodiment of the invention, the collected geological characteristic parameters are directly analyzed underground, so that the data can be analyzed in time, the alarm information obtained by analysis is transmitted to the ground, the transmitted data quantity is reduced, and the timeliness of the alarm can be improved.

Description

Underground working condition monitoring and early warning system and method

Technical Field

The invention relates to the technical field of oil and gas exploration, in particular to a monitoring and early warning system and method for underground working conditions.

Background

With the continuous development of petroleum industry technology, petroleum exploration can develop oil and gas reservoirs with thinner oil layers, worse physical properties, strong heterogeneity and other difficulties, and meanwhile, the application of complex structure wells such as large-displacement directional wells, ultrathin oil layer horizontal wells, multi-branch directional wells and the like is increased year by year.

In the construction process of the wells with complex structures, the property of rock stratum penetrated by the drill bit needs to be mastered in time, and a reservoir layer is quickly and accurately found, so that constructors are guided to control the drill bit to always penetrate through the reservoir layer, and the exposed area of the reservoir layer is improved to the greatest extent. The underground real-time measuring instrument has become a necessary tool in the petroleum exploration and development process, especially for complex directional wells, thin oil layer horizontal wells and the like. At present, measurement data of a downhole real-time measuring instrument (called a downhole instrument for short) is transmitted to the ground mainly through methods of drilling fluid pulse, electromagnetic wave, cable drill pipes and the like. In the methods, due to the limitation of the manufacturing process, not all the transmission can ensure that the information is transmitted to the ground at high speed, the range of stable and reliable transmission rate is changed greatly, and the underground working condition monitoring is influenced under the conditions of large transmission data quantity and long transmission distance.

Disclosure of Invention

Aiming at the problems in the prior art, the embodiment of the invention provides a system and a method for monitoring and early warning of underground working conditions.

In a first aspect, the invention provides an underground working condition monitoring and early warning system, which comprises at least one underground intelligent data processing device, a plurality of underground data acquisition devices and a ground device, wherein:

each underground intelligent data processing device corresponds to at least one underground data acquisition device, the ground device is in communication connection with each underground intelligent data processing device, and each underground intelligent data processing device is in communication connection with the corresponding underground data acquisition device; the underground data acquisition device is used for acquiring geological characteristic parameters, the underground intelligent data processing device is used for analyzing according to the received geological characteristic parameters, obtaining alarm information and reporting the alarm information to the ground device.

Further, the downhole data acquisition device comprises a first processing unit, a first storage unit, a signal preprocessing unit, a first power supply unit, a first communication unit, at least two sensors and a power supply unit, wherein:

The signal preprocessing unit is respectively connected with each sensor, the first processing unit is respectively connected with the signal preprocessing unit, the first storage unit and the first communication unit, and the power supply unit is used for supplying power to the first processing unit, the first storage unit, the first communication unit and the signal preprocessing unit.

Further, the downhole data acquisition device further comprises an external interface unit, and the external interface unit is connected with the third party acquisition device.

Further, the downhole intelligent data processing device comprises a second processing unit, a second storage unit, a second power supply unit, a second communication unit and a third communication unit, wherein:

The second processing unit is respectively connected with the second storage unit, the second communication unit, the second power supply unit and the third communication unit, the second communication unit is in communication connection with a corresponding underground data acquisition device, and the third communication unit is in communication connection with the ground device.

Further, the underground intelligent data processing device further comprises a third party interface, and the third party interface is connected with the third party acquisition device.

Further, the second communication unit includes a modem.

Further, the underground intelligent data processing device is provided with a plurality of underground data acquisition devices corresponding to the underground intelligent data processing device, and the underground intelligent data processing device is in communication connection with the rest underground data acquisition devices through one corresponding underground data acquisition device.

Further, the underground intelligent data processing device is provided with a plurality of underground data acquisition devices corresponding to the underground intelligent data processing device, and the underground intelligent data processing device is connected with each corresponding underground data acquisition device through a cable.

Further, the surface device is connected with each underground intelligent data processing device through drilling fluid pulse or cable transmission.

Further, the surface device adopts a server.

In a second aspect, the present invention provides a method for monitoring and pre-warning an underground working condition of the system for monitoring and pre-warning an underground working condition according to any one of the embodiments, including:

obtaining geological characteristic parameters;

Obtaining alarm information according to an expert early warning system or an early warning model and geological characteristic parameters;

and reporting the alarm information to a ground device.

The system and the method for monitoring and early warning of the underground working condition comprise at least one underground intelligent data processing device, a plurality of underground data acquisition devices and a ground device, wherein each underground intelligent data processing device corresponds to at least one underground data acquisition device, the ground device is in communication connection with each underground intelligent data processing device, and each underground intelligent data processing device is in communication connection with the corresponding underground data acquisition device; the underground data acquisition device is used for acquiring geological characteristic parameters, the underground intelligent data processing device is used for analyzing according to the received geological characteristic parameters, acquiring alarm information and reporting the alarm information to the ground device, and the acquired geological characteristic parameters are directly analyzed underground, so that data can be timely analyzed, the alarm information acquired by analysis is transmitted to the ground, the transmitted data volume is reduced, and the timeliness of alarm can be improved.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. In the drawings:

fig. 1 is a schematic structural diagram of a downhole operation monitoring and early warning system according to a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a downhole data acquisition device according to a second embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a downhole data acquisition device according to a third embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a downhole intelligent data processing device according to a fourth embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a downhole operation monitoring and early warning system according to a fifth embodiment of the present invention.

Fig. 6 is a flowchart of a method for monitoring and early warning of an underground condition according to a sixth embodiment of the present invention.

Fig. 7 is a flowchart of a method for monitoring and early warning of a downhole operating condition according to a seventh embodiment of the present invention.

Fig. 8 is a schematic flow chart of obtaining alarm information by an expert system according to an eighth embodiment of the present invention.

Fig. 9 is a schematic flow chart of obtaining alarm information through an early warning model according to a ninth embodiment of the present invention.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings. The exemplary embodiments of the present application and their descriptions herein are for the purpose of explaining the present application, but are not to be construed as limiting the application. It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be arbitrarily combined with each other.

It is noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the present application and in the foregoing figures, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.

In order to facilitate understanding of the technical scheme provided by the application, the following description will explain relevant contents of the technical scheme of the application.

The existing underground instrument needs to transmit data acquired by a sensor to the ground for alarm analysis. Currently, the problems faced by such instruments mainly include the following: (1) Due to the limitation of the transmission rate, the underground measurement often does not have a vibration parameter measurement function, the conventional drilling fluid pulse mode cannot be completely uploaded in real time due to large vibration measurement data quantity, the data collected in real time cannot be analyzed and processed underground, only the data can be stored and then played back after the underground instrument is drilled to the ground, a good opportunity for analyzing the data is missed, and alarm analysis cannot be performed timely. (2) The underground key well section can not be monitored at the same time, only one short section for conventional measurement parameters can only measure geological parameters of the position where the short section is located, the stratum parameters of the position close to the well section can not be compared, the integral real-time working condition of the underground key well section can not be judged, and underground working condition monitoring is incomplete. (3) The transmission mode is single, and conventionally, only one information transmission mode is adopted, and only drill can be started once the transmission process fails.

The underground working condition monitoring and early warning system provided by the invention monitors underground abnormal working conditions. Aiming at the situations that the underground real-time measurement of various parameters is large in data quantity and difficult to upload in real time, the real-time underground working condition monitoring method is provided. The method can realize automatic monitoring of underground working conditions, an underground data acquisition device can be placed at intervals of a certain distance in an underground key well section, the underground data acquisition device comprises a plurality of parameter measurement sensors, mass data obtained by measurement of the sensors can be transmitted into an underground intelligent data processing device in a high-speed cabled transmission mode for automatic processing and analysis, and a monitoring conclusion of complex working conditions is obtained. When the dangerous situations of underground accidents and complex problems occur, alarm information is automatically sent out, and the alarm information can be transmitted to a ground device in a conventional drilling fluid pulse or cable transmission mode. The embodiment of the invention provides a monitoring and early warning system for underground working conditions, which has the advantages of low cost and comprehensive monitoring information, can overcome the problems that the conventional underground parameter measurement type is single, the underground real-time working condition analysis parameter basis is insufficient, and the underground working conditions cannot be monitored in real time, realize the timely transmission of alarm information, effectively ensure the well control safety and improve the drilling efficiency.

Fig. 1 is a schematic structural diagram of an underground condition monitoring and early warning system provided by a first embodiment of the present invention, as shown in fig. 1, where the underground condition monitoring and early warning system provided by the embodiment of the present invention includes at least one underground intelligent data processing device 1, a plurality of underground data acquisition devices 2 and a ground device 3, where:

Each underground intelligent data processing device 1 corresponds to at least one underground data acquisition device 2, the ground device 3 is in communication connection with each underground intelligent data processing device 1, and each underground intelligent data processing device 1 is in communication connection with the corresponding underground data acquisition device 2; the underground data acquisition device 2 is used for acquiring geological characteristic parameters, the underground intelligent data processing device 2 is used for analyzing according to the received geological characteristic parameters, obtaining alarm information and reporting the alarm information to the ground device 3.

Specifically, the downhole data acquisition device 2 can be arranged at different positions in the pit according to actual use requirements so as to acquire geological characteristic parameters of different downhole well sections, obtain massive data information in the downhole real-time drilling process, including but not limited to temperature, pressure, vibration, torque, tension, rotation speed, inclination angle and the like, and be arranged according to actual requirements. For example, in an underground key well section, a mode of simultaneous measurement of a plurality of measurement points is adopted, each measurement point is provided with an underground data acquisition device 2, and 2-n (n is a positive integer greater than 2) underground data acquisition devices 2 can be selected according to requirements. The specific position of the downhole data acquisition device 2 is set according to actual needs, and the embodiment of the invention is not limited.

Each underground data acquisition device 2 is provided with a corresponding underground intelligent data processing device 1, and the underground data acquisition devices 2 transmit geological characteristic parameters acquired by acquisition to the corresponding underground intelligent data processing devices 1. The underground data acquisition device 2 can transmit the acquired geological characteristic parameters to the corresponding underground intelligent data processing device 1 through the high-speed cabled drill rod. The underground intelligent data processing device 1 analyzes the geological characteristic parameters, identifies the special working condition, generates alarm information, and reports the alarm information to the ground device 3 in a drilling fluid pulse or cable transmission mode. The surface unit 3 may employ a server. The ground device 3 is configured with alarm software, so that alarm information reported by the underground intelligent data processing device 1 can be verified, for example, the alarm information can be checked through related data collected on the ground, and the accuracy of the alarm information is further improved.

For example, an expert system or an alarm model may be configured in the downhole intelligent data processing device 1 to analyze the geologic characteristics. And the expert system is used for judging rules by establishing an expert rule base, judging working conditions of the collected geological characteristic parameters, judging whether the rules in the expert rule base are met, and starting early warning if the rules are met. The alarm model can be obtained based on the neural network model through pre-training, and whether early warning is carried out or not is determined through the collected geological characteristic parameters and the alarm model. The expert system and the alarm model are set according to actual needs, and the embodiment of the invention is not limited.

For example, taking a stuck drill fault as an example, sample data of a conventional stuck drill condition can be collected, and model training is performed through the sample data and the neural network model to obtain a stuck drill early warning model. The drilling sticking early warning model is configured in the underground intelligent data processing device 1, real-time data of drill bit pressure, drill string torque, vibration, rotating speed and the like are collected through the underground data collecting device 2 and transmitted to the underground intelligent data processing device 1, the underground intelligent data processing device 1 outputs a prediction result based on the real-time data of the drill bit and the drilling sticking early warning model, and if the prediction result is that drilling sticking occurs, the underground intelligent data processing device 1 can send drilling sticking alarm information to the ground device 3.

The underground working condition monitoring and early warning system provided by the embodiment of the invention comprises at least one underground intelligent data processing device, a plurality of underground data acquisition devices and a ground device, wherein each underground intelligent data processing device corresponds to at least one underground data acquisition device, the ground device is in communication connection with each underground intelligent data processing device, and each underground intelligent data processing device is in communication connection with the corresponding underground data acquisition device; the underground data acquisition device is used for acquiring geological characteristic parameters, the underground intelligent data processing device is used for analyzing according to the received geological characteristic parameters, acquiring alarm information and reporting the alarm information to the ground device, and the acquired geological characteristic parameters are directly analyzed underground, so that data can be timely analyzed, the alarm information acquired by analysis is transmitted to the ground, the transmitted data volume is reduced, and the timeliness of alarm can be improved. The data is analyzed underground, the transmission distance of the data is reduced, and the reliability of the data transmission is improved, so that the reliability of alarm information is improved, the well control safety is effectively ensured, and the drilling efficiency is improved. In addition, a plurality of different well sections can be monitored at the same time, and the reliability of underground working condition monitoring is improved.

Fig. 2 is a schematic structural diagram of a downhole data acquisition device according to a second embodiment of the present invention, as shown in fig. 2, further, based on the above embodiments, the downhole data acquisition device 2 includes a first processing unit 21, a first storage unit 22, a signal preprocessing unit 23, a first power supply unit 24, a first communication unit 25, and at least two sensors 26, wherein:

The signal preprocessing unit 23 is respectively connected to each sensor 26, the first processing unit 21 is respectively connected to the signal preprocessing unit 23, the first storage unit 22 and the first communication unit 25, and the first power supply unit 24 is used for supplying power to the first processing unit 21, the first storage unit 22, the signal preprocessing unit 23 and the first communication unit 25.

Specifically, the sensor 26 may be an annular temperature pressure sensor, a torque tension sensor, a triaxial vibration sensor, a weight on bit measurement sensor, a rotation speed measurement sensor, etc., which are set according to actual needs, and the embodiment of the present invention is not limited. The signal preprocessing unit 23 is configured to perform preprocessing on the acquired data, and convert the acquired data into data that can be processed by the first processing unit 21, for example, convert an analog signal into a digital signal. The first processing unit 21 may employ a CPU. The first processing unit 21 may store the acquired data to the first storage unit 22. The first communication unit 25 may comprise a high-speed modem for enabling high-speed cabled transmission, and fast transmission of the acquired data to the corresponding downhole intelligent data processing device 1. The first power supply unit 24 may employ a battery for powering the operation of the downhole data acquisition device 2, and is capable of powering the first processing unit 21, the first storage unit 22, the signal pre-processing unit 23 and the first communication unit 25.

Fig. 3 is a schematic structural diagram of an underground data collection device according to a third embodiment of the present invention, as shown in fig. 3, further, on the basis of the above embodiments, the underground data collection device 2 further includes an external interface unit 27, where the external interface unit 27 is connected to a third party collection device.

Specifically, in practical application, the data collected in the pit may change with different well sections or the change of drilling positions, and after the underground data collection device 2 leaves the factory, the sensors included in the underground data collection device 2 are fixed, in order to expand the types of the collected sensing data of the existing underground data collection device 2, an external interface unit 27 is configured for the underground data collection device 2, and the external interface unit 27 may adopt a universal interface and be connected with a third party collection device. The third party acquisition device is used for acquiring data which cannot be acquired by the underground data acquisition device 2. The external interface unit 27 may include general interfaces including, but not limited to, CAN, I ² C, TTL, RS232, RS485, QBUS, SPI, etc. The third party acquisition device may include, but is not limited to, a connection rotary steerable tool, geosteering tool, and the like.

Fig. 4 is a schematic structural diagram of a downhole intelligent data processing apparatus according to a fourth embodiment of the present invention, as shown in fig. 4, further, the downhole intelligent data processing apparatus 1 includes a second processing unit 11, a second storage unit 12, a second power supply unit 13, a second communication unit 14, and a third communication unit 15, where:

The second processing unit 11 is respectively connected with the second storage unit 12, the second communication unit 14, the second power supply unit 13 and the third communication unit 15, the second communication unit 14 is in communication connection with the corresponding downhole data acquisition device 2, and the third communication unit 15 is in communication connection with the surface device 3.

Specifically, the second communication unit 14 receives data from the corresponding downhole data acquisition device 2, and the second communication unit 14 may include a high-speed modem for realizing high-speed cabled transmission, and may timely obtain data from the corresponding downhole data acquisition device 2. The second storage unit 12 may employ a mass memory for storing received data, such as a hard disk having a capacity of more than 2 TB. The second processing unit 11 may adopt a processor suitable for data analysis, and is configured to perform alarm analysis on the collected data, perform data analysis through an expert system or an alarm model, identify important information of an underground working condition, determine whether an alarm is required, for example, based on underground temperature, pressure, vibration, torque and other changes, analyze alone or combine multiple parameters to automatically determine whether to send an alarm signal. When an abnormal situation is identified, the alarm information is reported to the ground device 3 via the third communication unit 15. The third communication unit 15 may be communicatively connected to the surface unit 3 by means of drilling fluid pulses, cabled drill rods, etc.

On the basis of the above embodiments, the downhole intelligent data processing device 1 further includes a third party interface, where the third party interface is directly connected to the third party acquisition device, and the third party acquisition device is used to collect related data. External interfaces include, but are not limited to, CAN, I ² C, TTL, RS232, RS485, QBUS, SPI, etc. The third party acquisition device may include, but is not limited to, a connection rotary steerable tool, geosteering tool, and the like.

Further, the second communication unit 14 includes a modem, which is a high-speed modem, and is configured according to actual needs, which is not limited in the embodiments of the present invention.

For example, the data transmission rate of the conventional drilling fluid is usually only 1-20bps, and the data transmission rate for drilling provided by the present application needs to be greater than 50bps, so that the high-speed modem adopted by the second communication unit 14 can meet the data transmission of greater than 50bps, for example, the high-speed modem meeting the data transmission rate of 100bps is selected.

Fig. 5 is a schematic structural diagram of an underground condition monitoring and early warning system according to a fifth embodiment of the present invention, as shown in fig. 5, further, on the basis of the foregoing embodiments, there are a plurality of underground data collecting devices 2 corresponding to the underground intelligent data processing device 1, and the underground intelligent data processing device 1 is communicatively connected with the remaining underground data collecting devices 2 through a corresponding one of the underground data collecting devices 2.

Specifically, the downhole intelligent data processing device 1 corresponds to a plurality of downhole data acquisition devices 2, and the downhole intelligent data processing device 1 is in communication connection with the remaining downhole data acquisition devices 2 through one of the downhole data acquisition devices 2. For example, the plurality of downhole data collection devices 2 are sequentially connected in a communication manner from far to near to the downhole intelligent data processing device 1, the downhole data collection device 2 closest to the downhole intelligent data processing device 1 is connected in a communication manner to the downhole intelligent data processing device 1, and the rest of the downhole data collection devices 2 except the downhole data collection device 2 closest to the downhole intelligent data processing device 1 transmit collected data to the downhole intelligent data processing device 1 through the downhole data collection device 2 closest to the downhole intelligent data processing device 1. In this way, no communication cable is required for the underground intelligent data processing device 1 and each underground data acquisition device 2, and the cost of the cable is reduced.

As shown in fig. 1, the downhole intelligent data processing device 1 is provided with a plurality of downhole data acquisition devices 2 corresponding to the downhole intelligent data processing device 1, and the downhole intelligent data processing device 1 is connected with each corresponding downhole data acquisition device 2 through a cable.

Specifically, the underground intelligent data processing device 1 is connected with each corresponding underground data acquisition device 2 through a cable, so that high-speed data transmission can be realized, and the early warning efficiency is improved. Because the underground intelligent data processing device 1 is connected with each corresponding underground data acquisition device 2, even a certain underground data acquisition device 2 can not influence the data transmission of other underground data acquisition devices 2 to the underground intelligent data processing device 1, and the reliability of the data transmission is improved.

Further, on the basis of the above embodiments, the surface device 3 is connected to each of the downhole intelligent data processing devices 1 by means of drilling fluid pulses or cables.

Further, the ground device 3 employs a server on the basis of the above embodiments.

According to the monitoring and early warning system for the underground working condition, which is provided by the embodiment of the invention, the underground intelligent data processing device can be arranged underground based on cable high-speed transmission data between the underground intelligent data processing device and the corresponding underground data acquisition device, high-speed data transmission and intelligent data processing are realized in a short distance, real-time monitoring, data extraction and analysis judgment of the underground working condition are realized based on the acquired information, whether an alarm is needed is further obtained, and when the alarm is needed, alarm information is timely reported, so that the timeliness and reliability of reporting the alarm information are improved.

The early warning processing flow of the underground working condition monitoring early warning system provided by the embodiment of the invention is exemplified as follows:

(1) Obtaining a geological characteristic obtained from sensor measurements in a downhole data acquisition device used in a well bore;

(2) Transmitting various geological characteristic parameters acquired by the underground data acquisition devices at different positions to the corresponding underground intelligent data processing device at high speed by a high-speed cabled transmission mode for processing;

(3) The underground intelligent data processing device adopts an expert system or a neural network model to automatically process, calculate and analyze according to the received geological characteristic parameters, and obtains analysis results to identify complex underground working conditions, wherein the underground working conditions comprise but are not limited to the conditions of drilling tool fracture, blowout, lost circulation, stuck drilling, well wall collapse and the like;

(4) The underground intelligent data processing device can send out alarm information after analyzing underground working conditions such as drilling tool fracture, blowout, lost circulation, stuck drilling, well wall collapse and the like, and the alarm information can be uploaded to a ground system in various transmission modes, including but not limited to drilling fluid pulse, cabled drilling rod and the like.

In the conventional drilling process, the upper part of the well bore is protected by a sleeve, and a section of well bore above the newly drilled bottom of the well bore has the following characteristics:

Outside the casing, the naked eyes lack protection, the shaft is rough, underground complex is easy to occur, and important precautions are needed. The fresh state of the measuring instrument is reserved for the newly drilled stratum. If the underground working condition monitoring and early warning system provided by the embodiment of the invention is only used in the section of the shaft, the application cost can be reduced, and the reliability of a communication line can be improved.

The application breaks through the structural limitation of conventional underground measurement while drilling, combines multi-parameter measurement with conventional transmission mode, overcomes the defect of low speed of conventional transmission mode, and moves intelligent analysis processing of geological characteristic parameters into an underground intelligent data processing device, so that the ground can directly obtain the conclusion of working condition monitoring, namely the alarm information of underground working condition, thereby being beneficial to quickly realizing dangerous early warning and early taking of control measures and avoiding drilling accidents. The application can effectively solve the problems that the measurement transmission rate of the current drilling instrument is low, the data processing is not timely, and the underground working condition cannot be monitored timely. The main advantages of the present application over the prior art are:

1) According to the technical scheme, the underground multiple positions can be monitored simultaneously, the parameters of the multiple positions of the key well section can be measured simultaneously, the data size is large, real-time analysis can be realized, and the underground parameters can be corrected.

2) And the comparison and analysis of various parameters in the pit are beneficial to comprehensively judging the characteristics of real-time working conditions, quickly finding out dangerous factors, identifying the problem of dangerous working conditions in the pit as soon as possible, and reducing the safety risk in the pit.

3) The alarm information is uploaded in time, so that the difficulty of uploading mass data can be reduced, key information transmission is realized, and the cost is saved.

4) The mass data between the underground data acquisition devices are transmitted in a short distance and high speed manner, so that the resources of the underground intelligent data processing device can be fully utilized, the automatic analysis of the data is realized, and the intelligent processing level of the underground data is improved.

Fig. 6 is a flow chart of an underground working condition monitoring and early warning method according to a sixth embodiment of the present invention, as shown in fig. 6, the underground working condition monitoring and early warning method according to the embodiment of the present invention includes:

s601, receiving geological characteristic parameters;

Specifically, each downhole data acquisition device may employ geological characteristic parameters of a corresponding well section, and then transmit the acquired seismic characteristic parameters to a corresponding downhole intelligent data processing device. The underground intelligent data processing device can receive the geological characteristic parameters sent by the corresponding underground data acquisition device.

S602, acquiring alarm information according to an expert early warning system or an early warning model and geological characteristic parameters;

Specifically, the downhole intelligent data processing device can generate alarm information based on the received geological characteristic parameters and an expert early warning system. Or the underground intelligent data processing device can obtain alarm information based on the received geological characteristic parameters and the early warning model. Wherein, expert early warning system and early warning model are established in advance.

S603, reporting the alarm information to a ground device.

Specifically, after the underground intelligent data processing device obtains the alarm information, the alarm information can be reported to the ground device through drilling fluid pulse or cable transmission mode, and the ground device can be configured with alarm software to verify the alarm information reported by the underground intelligent data processing device.

According to the underground working condition monitoring and early warning method provided by the embodiment of the invention, geological characteristic parameters can be received, alarm information is obtained according to an expert early warning system or an early warning model and the geological characteristic parameters, the alarm information is reported to a ground device, data analysis is carried out underground, and the timeliness of alarm is improved.

Fig. 7 is a schematic flow chart of a method for monitoring and early warning of an underground working condition according to a seventh embodiment of the present invention, as shown in fig. 7, the specific flow of the method for monitoring and early warning of the underground working condition is as follows:

firstly, collecting geological characteristic parameters; each underground data acquisition device arranged at different underground positions adopts geological characteristic parameters of different well sections.

Secondly, sending geological characteristic parameters; each underground data acquisition device transmits the acquired geological characteristic parameters to the corresponding underground intelligent data processing device through the high-speed cabled drill rod.

Thirdly, processing geological characteristic parameters; the underground intelligent data processing device analyzes the received geological characteristic parameters through an expert early warning system or an early warning model to obtain an early warning analysis result, and early warning information is generated if special working condition conditions are identified; if everything is normal, no early warning information is generated.

Fourth, whether alarm information needs to be sent or not; how the early warning information is generated, then entering a fifth step; if no early warning information is generated, the method returns to the first step and waits for the acquisition of the geological characteristic parameters of the next period.

Fifthly, sending alarm information; the underground intelligent data processing device reports to the ground device through drilling fluid pulse or cable transmission mode to send alarm information to the ground device.

And step six, displaying alarm information. After the ground device receives the alarm information, the alarm information can be displayed on a screen for relevant personnel to check.

As shown in fig. 8, the specific flow of obtaining the alarm information through the expert early warning system and the geological characteristic parameters is as follows:

Firstly, initializing geological characteristic parameters; and initializing geological characteristic parameters according to the format requirements of input data of the expert early warning system to obtain a plurality of groups of data.

Secondly, expert rule matching is carried out; and obtaining a group of data, and matching with the matching rules in the expert rule base one by one. The matching rules in the expert rule base are preset and set according to actual needs, and the embodiment of the invention is not limited.

Thirdly, judging whether the matching rule is met; judging whether the group of data has a matched rule or not, and if the group of data is not matched with all the matched rules in the expert database, entering a fifth step; if there is a matching rule matching the set of data, then go to the fourth step.

Fourth, outputting a result conforming to the matching rule; a result may be entered that meets the matching rule, and the result may include the set of data and the matching rule that matches the set of data.

Fifthly, acquiring the next group of data; and (3) acquiring one group of data from the rest groups of data, returning to the second step, and carrying out judgment again.

And sixthly, outputting alarm information. Alarm information is reported to a ground device through drilling fluid pulse or cable transmission mode.

In the following, a specific implementation process of obtaining alarm information through an early warning model is described by taking a drill sticking as an example, as shown in fig. 9.

Firstly, obtaining geological characteristic parameters; the data used to determine stuck geological parameters, including but not limited to bit pressure, drill string torque, bit vibration, bit rotational speed, etc., are obtained.

Secondly, carrying out stuck drill prediction; and inputting the geological characteristic parameters for judging the stuck drill into a stuck drill early warning model, and outputting a prediction result which is divided into stuck drill and non-stuck drill. Wherein, the drill sticking early warning model is established in advance.

Thirdly, judging whether drill sticking exists or not; if the predicted result is stuck, entering a fourth step; if the predicted result is that no stuck drill is found, then the current stuck drill is predicted

And fourthly, reporting the stuck drill alarm information. And reporting the drilling sticking alarm information to a ground device through drilling fluid pulse or cable transmission mode.

The pre-establishing process of the drill sticking early warning model comprises the following steps: and collecting sample data of the stuck drill, and training the neural network model according to the sample data to obtain a stuck drill early warning model. The specific training process of the model is the prior art, and details are not described here.

It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In the description of the present specification, reference to the terms "one embodiment," "one particular embodiment," "some embodiments," "for example," "an example," "a particular example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims (11)

1. The utility model provides a monitoring early warning system of underground operating mode which characterized in that includes at least one intelligent data processing device in the pit, a plurality of underground data acquisition device and ground device, wherein:

each underground intelligent data processing device corresponds to at least one underground data acquisition device, the ground device is in communication connection with each underground intelligent data processing device, and each underground intelligent data processing device is in communication connection with the corresponding underground data acquisition device; the underground data acquisition device is used for acquiring geological characteristic parameters, the underground intelligent data processing device is used for analyzing according to the received geological characteristic parameters, obtaining alarm information and reporting the alarm information to the ground device.

2. The downhole operating condition monitoring and early warning system of claim 1, wherein the downhole data acquisition device comprises a first processing unit, a first storage unit, a signal preprocessing unit, a first power supply unit, a first communication unit, at least two sensors, and a power supply unit, wherein:

The signal preprocessing unit is respectively connected with each sensor, the first processing unit is respectively connected with the signal preprocessing unit, the first storage unit and the first communication unit, and the power supply unit is used for supplying power to the first processing unit, the first storage unit, the first communication unit and the signal preprocessing unit.

3. The downhole operating condition monitoring and early warning system of claim 2, wherein the downhole data acquisition device further comprises an external interface unit, the external interface unit being connected with a third party acquisition device.

4. The downhole operating condition monitoring and early warning system of claim 1, wherein the downhole intelligent data processing device comprises a second processing unit, a second storage unit, a second power supply unit, a second communication unit, and a third communication unit, wherein:

The second processing unit is respectively connected with the second storage unit, the second communication unit, the second power supply unit and the third communication unit, the second communication unit is in communication connection with a corresponding underground data acquisition device, and the third communication unit is in communication connection with the ground device.

5. The downhole operating condition monitoring and early warning system of claim 4, wherein the downhole intelligent data processing device further comprises a third party interface, the third party interface being coupled to a third party acquisition device.

6. The downhole operating condition monitoring and warning system of claim 4, wherein the second communication unit comprises a modem.

7. The system of claim 1, wherein the plurality of downhole intelligent data processing devices are provided with corresponding downhole data acquisition devices, and the downhole intelligent data processing devices are in communication connection with the remaining downhole data acquisition devices through a corresponding downhole data acquisition device.

8. The system of claim 1, wherein the plurality of downhole intelligent data processing devices are associated with each of the plurality of downhole data acquisition devices, and wherein the plurality of downhole intelligent data processing devices are connected to each of the plurality of downhole data acquisition devices by a cable.

9. The system of claim 1, wherein the surface device is connected to each of the intelligent data processing devices via drilling fluid pulses or cables.

10. A downhole operation monitoring and warning system according to any one of claims 1 to 9, wherein the surface means employs a server.

11. A method of monitoring and warning of downhole conditions based on a system of monitoring and warning of downhole conditions according to any one of claims 1 to 10, comprising:

receiving a geological characteristic parameter;

Obtaining alarm information according to an expert early warning system or an early warning model and geological characteristic parameters;

and reporting the alarm information to a ground device.