CN101725327B - Intelligent monitoring method aiming at well drilling overflowing and leakage - Google Patents
Intelligent monitoring method aiming at well drilling overflowing and leakage Download PDFInfo
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- CN101725327B CN101725327B CN 200910249631 CN200910249631A CN101725327B CN 101725327 B CN101725327 B CN 101725327B CN 200910249631 CN200910249631 CN 200910249631 CN 200910249631 A CN200910249631 A CN 200910249631A CN 101725327 B CN101725327 B CN 101725327B
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Abstract
The invention discloses an intelligent monitoring method aiming at well drilling overflowing and leakage, belonging to the well drilling monitoring technology. On the basis of the existing hardware device, the method comprehensively utilizes the information of a plurality of site sensors, imitates the experience of experts to put forward the reasonable judgment of accidents such as overflowing, leakage and the like as well as the regulation of alarm control, and realizes automatic monitoring and alarm control by a computer. By using the method, the capability of treating multiple information of the computer can be fully exerted, automatic monitoring wok can be realized under the unsupervised condition, leads the alarm of accidents to be more timely and accurate, reduces the probability of false alarm, and well solves the problems in oil field well drilling production.
Description
Technical field
The present invention relates to a kind of method of carrying out automatic monitoring for the overflow in the drilling process and leakage accident, belong to the well drilling monitoring technology field.
Background technology
In Process of Oil Well Drilling, overflow and leakage belong to multiple accident.When stratum pore pressure during greater than bottom pressure, the liquid in the formation pore can immerse in the well, causes mud pit level to rise and causes overflow; If have leakage channel and certain spatial accommodation in the stratum, when perhaps the well liquid column pressure is greater than formation pore pressure, then the leakage phenomenon can occur.The generation meeting of overflow and leakage brings very large economic loss to drillng operation, and as easy as rolling off a logly causes contingency to cause casualties.
For reducing the loss that is caused by overflow and leakage, existing solution mainly is to find early accident, in order in time adopt remedial measures, the key of realization depends on overflow and leakage monitoring technique.Existing technology is that monitor fluid is at the liquid level of bore hole annulus, such as by sensors such as sonar, radar or pressure it being monitored.This is because when overflow and leakage generation, ANOMALOUS VARIATIONS can appear in the liquid level in the bore hole annulus.When overflow occured, bore hole annulus liquid level meeting fast rise was also overflowed well head; When leakage occured, the bore hole annulus liquid level can drop to below the normal position.But, such monitoring technology is only paid attention to monitoring target and to the selection of monitoring equipment, and the research of judging for the comprehensive utilization of sensor information and accident is not deep enough, for example the patent No. is middle sonar, radar and three kinds of Sensor monitoring liquid levels of pressure used of Chinese patent " underground liquid level monitoring system and method for supervising thereof " of 200610112449.2, its groundwork is to have provided the mount scheme of three kinds of sensors and level monitoring scheme, does not but provide the method for comprehensive utilization sensor information and the method that accident is judged.
Summary of the invention
The objective of the invention is substantially do not changing on the basis of existing hardware equipment, a kind of intelligent control method for drilling well overflow and leakage is proposed, judge and alarm flow by the comprehensive utilization sensor information and in conjunction with rational accident, make drilling failure be able to early detection and be beneficial to timely processing, thereby the safety of raising drilling process and automation, the level of informatization have solved the difficult problem during oil drilling is produced well.
The objective of the invention is to be achieved through the following technical solutions.
Site plant comprises three liquid level sensors that are installed in well head: (1) radar level gauge, the liquid level when being used for monitoring normal drilling well and the generation of liquid stream; (2) pressure sensor, the liquid level when being used for the monitoring trip-out; (3) sonic sensor is used for the liquid level after the monitoring leakage occurs.
Being positioned at main control computer at a distance links to each other with above-mentioned each sensor.Each sensor measurement to data send main control computer to after, main control computer carries out corresponding data to be processed and shows, and judges whether the scene has accident to occur, if there is accident to occur then to report to the police.
Warning device links to each other with main control computer, and the alarm command that receives the main control computer transmission is reported to the police.
Grouting equipment links to each other with main control computer, receives the grouting instruction that main control computer sends.
Processing method and flow process are as follows:
Radar level gauge is responsible for monitoring apart from 0 meter degree of depth to M1 rice of liquid head piece, and the M1 span is preferably 0.8 meter-1.2 meters; The degree of depth of pressure sensor monitoring apart from liquid head piece M1 rice to M2 rice, M2 span are preferably 7.5 meters-8.5 meters; The sonic sensor monitoring is apart from the degree of depth of liquid head piece greater than M2 rice;
If rig is in normal drilling state, then main control computer sends firing command to radar level gauge, excites radar level gauge to start working; If rig is in the trip-out state, then at first the Activate pressure sensor is started working.After corresponding sensing equipment is started working, main control computer will be uploaded to its transmission the instruction of monitored data.
If the sensor of work at present is radar level gauge, and main control computer is resolved the actual liquid level H＜M1 that obtains behind its packet of uploading, then continue to keep the radar level gauge duty, otherwise, send instruction to radar level gauge and make its standby, and the Activate pressure sensor is started working and send the instruction upload monitored data to main control computer.
If the sensor of work at present is pressure sensor, and it is M1≤H≤M2 that main control computer is resolved the actual liquid level H that obtains behind its packet of uploading, then continue to keep the duty of pressure sensor, otherwise, send instruction to pressure sensor and make its standby.At this moment, if H＞M2, if then excite sound waves working sensor and the instruction of uploading monitored data to its transmission is the instruction that H＜M1 then excites radar level gauge work and uploads monitored data to its transmission.
If the sensor of work at present is sonic sensor, and main control computer is resolved the actual liquid level H＞M2 that obtains behind its packet of uploading, then continue to keep the duty of sonic sensor, otherwise, send instruction to pressure sensor and make its standby, and the Activate pressure sensor is started working and send the instruction upload monitored data to main control computer.
After the main control computer parsing is uploaded and next packet through sensor, obtained actual liquid level H, by whether accident is arranged in the current drillng operation of Analysis deterrmination occur.If there is accident to occur, main control computer will in time be reported to the police.Simultaneously, according to level condition, send instruction to grouting machine, control it and begin or stop grouting operation.Specific as follows:
If N continuous time read sensor data failure illustrate when front sensor and may break down with being connected of main control computer or equipment breaks down, excite the warning device warning at this moment.Wherein, N is integer, and value is not less than 3, preferably gets 3 or 4 or 5.
The liquid level H1 of actual liquid level H and a upper moment t is compared, if continuous A the threshold value greater than prior setting of the absolute value of the difference of H and H1, illustrate that liquid level changes too fast, this variation might be that overflow or leakage cause, also might be that equipment breaks down, at this moment, main control computer will excite warning.Wherein, A is integer, and value is not less than 3.
When actual liquid level H exceeds threshold value of warning or the alarm threshold value of prior setting continuous B time, illustrate that liquid level is unusual, overflow or leakage accident might occur, at this moment, if just surpass threshold value of warning, the expression liquid level approaches unusual, and main control computer excites warning device to report to the police 1 time, keeps paying close attention to the prompting constructor; If surpassed alarm threshold value, then continue to report to the police, until liquid level recovers normal.Wherein, B is integer, and value is not less than 3.
If continuous C the threshold value of being in the milk that begins greater than in advance setting of the value of actual liquid level H then sends the grouting instruction to grouting machine, the controlled grouting machine carries out grouting operation; If the value of H continuous D time less than stopping the threshold value of being in the milk, then send to grouting machine and stop the instruction of being in the milk, the controlled grouting machine stops grouting.Wherein, C, D are integer, and value all is not less than 3.
Beneficial effect
The inventive method contrast prior art has the following advantages.
1, accident judgement and controlling alarm flow process are considered fully, and be rigorous reasonable, makes accident alarming more timely, accurate, and the possibility of false alarm is lower.
2, fully utilize a plurality of sensor informations, not only can obtain the liquid level information of any degree of depth in the well, can also give full play to the ability that main control computer can be processed much information.
3, main control computer adopts the Intellectualized monitoring flow process, can be in the situation that no supervision stably carries out automatic monitoring work.
Description of drawings
Fig. 1 is the corresponding monitoring system hardware device of the inventive method composition frame chart;
Fig. 2 is the automatic monitoring flow chart of the inventive method.
The specific embodiment
Below in conjunction with accompanying drawing specific embodiments of the invention are described in further detail.
The on-site supervision process that the below is applied in Shengli Oil Field oil drilling (pound sign 2153) take this method describes this method as example.
Embodiment
A kind of intelligent control method for drilling well overflow and leakage, Fig. 1 are the corresponding monitoring system hardware device of this method composition frame chart, and wherein sensor 1, sensor 2 and sensor 3 are corresponding respectively is radar level gauge, pressure sensor and sonic sensor.
Site plant comprises three liquid level sensors that are installed in well head: (1) radar level gauge, the liquid level when being used for monitoring normal drilling well and the generation of liquid stream; (2) pressure sensor, the liquid level when being used for the monitoring trip-out; (3) sonic sensor is used for the liquid level after the monitoring leakage occurs.Wherein, radar level gauge is responsible for monitoring the degree of depth apart from 0 meter to 1 meter of liquid head piece, and pressure sensor monitoring is apart from the degree of depth of 1 meter to 8 meters of liquid head piece, and sonic sensor is monitored apart from the degree of depth of liquid head piece greater than 8 meters.
Being positioned at main control computer at a distance links to each other with above-mentioned each sensor by the RS232 data/address bus.Each sensor measurement to data send main control computer to after, main control computer carries out corresponding data to be processed and shows, and judges whether the scene has accident to occur, if there is accident to occur then to report to the police.
Warning device links to each other with main control computer, and the alarm command that receives the main control computer transmission is reported to the police.
The system monitoring flow process as shown in Figure 2, after the whole system operation, main control computer automatically contacts with site plant foundation, if there is with the situation of on-the-spot any one equipment connection failure, system can send equipment alarm information, and the mode of this information and accident alarming and abnormal alarm is to some extent difference on sound.If successful connection then begins to accept the liquid level data from spot sensor, and be kept in the database and interim formation of main control computer.
If rig is in normal drilling state, then main control computer sends firing command to radar level gauge, excites radar level gauge to start working; If rig is in the trip-out state, then at first the Activate pressure sensor is started working.After corresponding sensing equipment is started working, main control computer will be uploaded to its transmission the instruction of monitored data.
If the sensor of work at present is radar level gauge, and main control computer is resolved the actual liquid level H that obtains behind its packet of uploading＜1, then continue to keep the radar level gauge duty, otherwise, send instruction to radar level gauge and make its standby, and the Activate pressure sensor is started working and send the instruction upload monitored data to main control computer.
If the sensor of work at present is pressure sensor, and main control computer to resolve the actual liquid level H that obtains behind its packet of uploading be 1≤H≤8, then continue to keep the duty of pressure sensor, otherwise, send instruction to pressure sensor and make its standby.At this moment, if H＞8, if then excite sound waves working sensor and the instruction of uploading monitored data to its transmission is H＜1 instruction that excites radar level gauge work and upload monitored data to its transmission.
If the sensor of work at present is sonic sensor, and main control computer is resolved the actual liquid level H that obtains behind its packet of uploading＞8, then continue to keep the duty of sonic sensor, otherwise, send instruction to pressure sensor and make its standby, and the Activate pressure sensor is started working and send the instruction upload monitored data to main control computer.
After the main control computer parsing is uploaded and next packet through sensor, obtained actual liquid level H, by whether accident is arranged in the current drillng operation of Analysis deterrmination occur.If there is accident to occur, main control computer will in time be reported to the police.Simultaneously, according to level condition, send instruction to grouting machine, control it and begin or stop grouting operation.Specific as follows:
If N continuous time read sensor data failure illustrate when front sensor and may break down with being connected of main control computer or equipment breaks down, excite the warning device warning at this moment.Wherein, N is integer, and value is not less than 3, preferably gets 3 or 4 or 5.Get N=3. among this embodiment
The liquid level H1 of actual liquid level H and a upper moment t is compared, if continuous 3 threshold values greater than prior setting of the absolute value of the difference of H and H1, illustrate that liquid level changes too fast, this variation might be that overflow or leakage cause, also might be that equipment breaks down, at this moment, main control computer will excite warning.
When actual liquid level H exceeds threshold value of warning or the alarm threshold value of prior setting continuous 3 times, illustrate that liquid level is unusual, overflow or leakage accident might occur, at this moment, if just surpass threshold value of warning, the expression liquid level approaches unusual, and main control computer excites warning device to report to the police 1 time, keeps paying close attention to the prompting constructor; If surpassed alarm threshold value, then continue to report to the police, until liquid level recovers normal.
If continuous 3 threshold values of being in the milk that begin greater than in advance setting of the value of actual liquid level H then send the grouting instruction to grouting machine, the controlled grouting machine carries out grouting operation; If the value of H continuous 3 times less than stopping the threshold value of being in the milk, then send to grouting machine and stop the instruction of being in the milk, the controlled grouting machine stops grouting.
When carrying out the accident judgement, system can draw dynamic image in real time, so that the monitoring personnel observe the situation in the well more intuitively.Main control computer can in the situation that do not need manual intervention automatically reading out data, storage data, analyze data, according to be in the milk control and when accident occurs, carry out Realtime Alerts of liquid level.
The technical method that the present invention proposes has been used for Process of Oil Well Drilling, and implementation result satisfies production requirement.
Claims (3)
1. the intelligent control method for drilling well overflow and leakage is deployed with radar level gauge, pressure sensor and sonic sensor at situ of drilling well; Be positioned at main control computer at a distance and link to each other with above-mentioned each sensor, warning device links to each other with main control computer with grouting machine;
It is characterized in that:
Radar level gauge is responsible for monitoring apart from 0 meter degree of depth to M1 rice of liquid head piece; The degree of depth of pressure sensor monitoring apart from liquid head piece M1 rice to M2 rice; The sonic sensor monitoring is apart from the degree of depth of liquid head piece greater than M2 rice;
If rig is in normal drilling state, then main control computer sends firing command to radar level gauge, excites radar level gauge to start working; If rig is in the trip-out state, then at first the Activate pressure sensor is started working; After corresponding sensing equipment is started working, main control computer will be uploaded to its transmission the instruction of monitored data;
If the sensor of work at present is radar level gauge, and main control computer is resolved the actual liquid level H＜M1 that obtains behind its packet of uploading, then continue to keep the radar level gauge duty, otherwise, send instruction to radar level gauge and make its standby, and the Activate pressure sensor is started working and send the instruction upload monitored data to main control computer;
If the sensor of work at present is pressure sensor, and it is M1≤H≤M2 that main control computer is resolved the actual liquid level H that obtains behind its packet of uploading, then continue to keep the duty of pressure sensor, otherwise, send instruction to pressure sensor and make its standby; At this moment, if H＞M2, if then excite sound waves working sensor and the instruction of uploading monitored data to its transmission is the instruction that H＜M1 then excites radar level gauge work and uploads monitored data to its transmission;
If the sensor of work at present is sonic sensor, and main control computer is resolved the actual liquid level H＞M2 that obtains behind its packet of uploading, then continue to keep the duty of sonic sensor, otherwise, send instruction to pressure sensor and make its standby, and the Activate pressure sensor is started working and send the instruction upload monitored data to main control computer;
After the main control computer parsing is uploaded and next packet through sensor, obtained actual liquid level H, by whether accident is arranged in the current drillng operation of Analysis deterrmination occur; If there is accident to occur, main control computer will in time be reported to the police; Simultaneously, according to level condition, send instruction to grouting machine, control it and begin or stop grouting operation; Specific as follows:
If N continuous time read sensor data failure illustrate when front sensor and may break down with being connected of main control computer or equipment breaks down, excite the warning device warning at this moment; Wherein, N is integer, and value is not less than 3;
The liquid level H1 of actual liquid level H and a upper moment t is compared, continuous A the threshold value greater than prior setting of absolute value of the difference of H and H1, illustrate that liquid level changes too fast, this variation may be that overflow or leakage cause, also might be that equipment breaks down, at this moment, main control computer will excite warning; Wherein, A is integer, and value is not less than 3;
When actual liquid level H exceeds threshold value of warning or the alarm threshold value of prior setting continuous B time, illustrate that liquid level is unusual, might send out overflow or leakage accident can occur, at this moment, if just surpass threshold value of warning, the expression liquid level approaches unusual, and main control computer excites warning device to report to the police 1 time, keeps paying close attention to the prompting constructor; If surpassed alarm threshold value, then continue to report to the police, until liquid level recovers normal; Wherein, B is integer, and value is not less than 3;
If continuous C the threshold value of being in the milk that begins greater than in advance setting of the value of actual liquid level H then sends the grouting instruction to grouting machine, the controlled grouting machine carries out grouting operation; If the value of H continuous D time less than stopping the threshold value of being in the milk, then send to grouting machine and stop the instruction of being in the milk, the controlled grouting machine stops grouting; Wherein, C, D are integer, and value all is not less than 3.
2. a kind of intelligent control method for drilling well overflow and leakage as claimed in claim 1, it is characterized in that: described M1 span is 0.8 meter-1.2 meters.
3. a kind of intelligent control method for drilling well overflow and leakage as claimed in claim 1, it is characterized in that: described M2 span is 7.5 meters-8.5 meters.
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| CN 200910249631 CN101725327B (en) | 2009-12-09 | 2009-12-09 | Intelligent monitoring method aiming at well drilling overflowing and leakage |
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| CN 200910249631 CN101725327B (en) | 2009-12-09 | 2009-12-09 | Intelligent monitoring method aiming at well drilling overflowing and leakage |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128022B (en) * | 2010-12-30 | 2013-06-12 | 中国电子科技集团公司第二十二研究所 | Drilling engineering early warning method and system thereof |
| CN102263690B (en) * | 2011-05-23 | 2014-04-09 | 中国石油大学(华东) | Method for uploading data in measurement-while-drilling system |
| CN103106763A (en) * | 2011-11-09 | 2013-05-15 | 上海移远通信技术有限公司 | System and method of alarming |
| CN103277089A (en) * | 2013-06-27 | 2013-09-04 | 西南石油大学 | Well-drilling early overflow loss ground monitoring device |
| CN104594834B (en) * | 2014-12-01 | 2016-12-21 | 中国石油大学(华东) | A kind of monitoring method of deep water oil base drilling fluid drilling well flooded conditions |
| CN104747172A (en) * | 2015-03-26 | 2015-07-01 | 西南石油大学 | Leakage spray conversion alarm system used for drilling meeting multi-pressure system stratums and method thereof |
| CN107060731A (en) * | 2017-07-04 | 2017-08-18 | 中国石油集团钻井工程技术研究院 | A kind of deepwater drilling casing setting depth modification method based on well kick surplus |
| CN110963197B (en) * | 2019-12-13 | 2022-03-08 | 中国石油天然气集团有限公司 | Oil overflow early warning method and early warning terminal for oil storage tank |
| CN111335834B (en) * | 2020-05-20 | 2020-09-04 | 中石化胜利石油工程有限公司地质录井公司 | Method for monitoring well kick and leakage |
| CN113586039A (en) * | 2021-08-02 | 2021-11-02 | 西南石油大学 | Method for monitoring overflow and leakage positions in real time based on distributed optical fiber |
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| GB2357305A (en) * | 1999-12-13 | 2001-06-20 | George Stenhouse | Lining bores, such as wells and pipelines |
| CN1648408A (en) * | 2004-09-20 | 2005-08-03 | 张复彦 | Petroleum and natural gas drilling operation monitoring and controlling managing system |
| EP1898044A2 (en) * | 2006-09-07 | 2008-03-12 | Weatherford/Lamb Inc. | Annulus pressure control drilling systems and methods |
| CN201196041Y (en) * | 2008-05-15 | 2009-02-18 | 胜利油田海胜实业有限责任公司 | Automatic grouting liquid level monitoring apparatus for well drilling |
| CN101446191A (en) * | 2008-11-17 | 2009-06-03 | 文必用 | Drilling well control parameter intelligent monitoring system |
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2009
- 2009-12-09 CN CN 200910249631 patent/CN101725327B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2357305A (en) * | 1999-12-13 | 2001-06-20 | George Stenhouse | Lining bores, such as wells and pipelines |
| CN1648408A (en) * | 2004-09-20 | 2005-08-03 | 张复彦 | Petroleum and natural gas drilling operation monitoring and controlling managing system |
| EP1898044A2 (en) * | 2006-09-07 | 2008-03-12 | Weatherford/Lamb Inc. | Annulus pressure control drilling systems and methods |
| CN201196041Y (en) * | 2008-05-15 | 2009-02-18 | 胜利油田海胜实业有限责任公司 | Automatic grouting liquid level monitoring apparatus for well drilling |
| CN101446191A (en) * | 2008-11-17 | 2009-06-03 | 文必用 | Drilling well control parameter intelligent monitoring system |
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