CN102828709A - Well-drilling safety intelligent monitoring method and well-drilling safety monitoring alarming device - Google Patents
Well-drilling safety intelligent monitoring method and well-drilling safety monitoring alarming device Download PDFInfo
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Abstract
The invention discloses a well-drilling safety intelligent monitoring method for monitoring liquid flow speed at an outlet of an overflow pipe and alarming while achieving an alarming condition. According to the well-drilling safety intelligent monitoring method, the well kick or well leakage dangerous case can be timely detected in the early days. The monitoring on the liquid flow speed is in real time, so that the misinformation situation as a mud tank is avoided and the safety stability is increased. The invention also discloses a well-drilling safety monitoring alarming device which comprises an outlet flow meter utilizing a sonar sensor to monitor the liquid flow speed at the outlet. Due to the non-contact property of the sonar sensor, the stability of the work of the outlet flow meter is ensured, the conditions, such as fault operation, caused by the blocking of the mud slurry are avoided, and the stability of the well-drilling safety monitoring alarming device is increased.
Description
Technical field
The invention belongs to oil and gas exploration exploitation production field, relate in particular to a kind of method and a kind of device that drilling safety is carried out monitoring alarm that utilizes sensor the security situation of drilling mud to be carried out intelligent monitoring.
Background technology
Existing drilling mud liquid level method for supervising; Like the publication number CN1033858A of Patent Office of the People's Republic of China disclosed " method and system of the automatically pouring mud that makes a trip "; Publication number CN1348052A disclosed " method for supervising of mud level displaying alarm and pit shaft liquid level "; The one, the slurry tank liquid measure of drilling well circulation, total liquid measure are monitored automatically, surpass setting value 2m continuously in increase of variation liquid measure and minimizing
3Shi Zidong carries out well kick and leakage abnormity early warning and warning; The 2nd, the bleed off pipe outlet that drilling well is circulated has or not mud to monitor, and does not have liquid-flow state at the drilling well circulating mud and carries out the leakage early warning, when the bleed off pipe outlet flow time that makes a trip surpasses setting value, carries out well kick abnormity early warning and warning.These two kinds of methods to a certain extent; Can be convenient to drilling well post personnel and keep drilling well normal circulation liquid level; Certain mud fluid column pressure in the pit shaft when boring under keeping pulling out of hole; Thereby well kick and leakage there are the forewarning function of certain degree, finally reach and prevent pit shaft head of liquid and strata pressure disequilibrium and the downhole oil gas blowout takes place the purpose with accidents such as the borehole wall collapse.
The problem of said method is: at first this method is not monitored mud-outlet-flow and is reported to the police, just through the monitoring of jar liquid measure is reported to the police.This just causes changing liquid measure 2m in the jar liquid measure
3Monitoring the time, drilling well circulation beginning, slush pump suction mud, if suction mud is too fast a little, because the hysteresis quality of mud outlet overflow, a jar liquid measure reduction possibly surpass alert if once in a while, monitoring system will be reported leakage by mistake; If the loop termination of drilling well simultaneously, slush pump shuts down, and well mud returns, and is too fast a little if mud returns, and jar liquid measure recruitment surpasses alert if again, just monitoring system can be reported well kick by mistake.Wrong report well kick, leakage can produce potential safety hazard undoubtedly, particularly when getting into the subterranean oil gas-bearing formation, if the monitor staff real well kick, leakage have occurred when handling wrong report, just can cause the disaster of personnel's property loss.In addition, this method is not monitored bleed off pipe outlet flow size, only the slurry tank of back is monitored, and can't find in time in early days that the well kick of pit shaft in the drilling well is unusual, leakage is unusual.
In addition, existing drilling well rate of discharge meter commonly used is the target type meter according to the metering of blade open degree size.In the drilling mud cyclic process, flow meter blade and rotating shaft meeting bonding silt, long-time mud cake thickening is done solid; Can influence accurately measure; Even cause the blade clamping stagnation and cause flow meter to lose efficacy, thereby cause monitoring system to lag behind or lost efficacy, and consequence that finally maybe bringing on a disaster property.
Summary of the invention
To the problems referred to above, first purpose of the present invention is to provide a kind of can responsively in early days find that well kick is unusual and leakage is unusual, and reduces the drilling safety intelligent control method of wrong report significantly.
To the problems referred to above, second purpose of the present invention is to provide a kind of can not change the drilling safety monitoring alarm device that breaks down because of mud.
First purpose of the present invention is accomplished through following technical scheme: a kind of drilling safety intelligent control method may further comprise the steps: S1: measuring process: the flow stream velocity of measuring the bleed off pipe outlet; S2: early warning step:, then carry out the well kick early warning if this flow stream velocity variable quantity has reached the first speed increment early warning value; If this flow stream velocity variable quantity has reached the first speed decrement early warning value, then carry out the leakage early warning.
Further, said step S2 also comprises: if this flow stream velocity variable quantity has reached second speed increment early warning value, then carry out the well kick alarm, second speed increment early warning value is greater than the first speed increment early warning value; If this flow stream velocity variable quantity has reached second speed decrement early warning value, then carry out the leakage alarm, the absolute value of second speed decrement early warning value is greater than the absolute value of the first speed decrement early warning value.Increase by second state and help representing more critical well kick or leakage state, be convenient to the drilling well monitor staff and carry out safety management.
Further, said step S2 also comprises: if this flow stream velocity variable quantity has reached third speed increment early warning value, then carry out urgent well kick alarm, third speed increment early warning value is greater than second speed increment early warning value; If this flow stream velocity variable quantity has reached third speed decrement early warning value, then carry out urgent leakage alarm, the absolute value of third speed decrement early warning value is greater than the absolute value of second speed decrement early warning value.Increase the third state and help representing very critical well kick or leakage state, be convenient to the drilling well monitor staff and in time speedily carry out rescue work.
Further, said step S1 also comprises, measures the fluid temperature of bleed off pipe outlet; Said step S2 also comprises, if fluid temperature surpasses the temperature early warning value, then carries out the temperature early warning.Temperature is monitored, help the drilling well monitor staff and judge bored shaft understratum temperature conditions.
Further, said step S1 also comprises, measures the liquid measure in the slurry tank; Said step S2 also comprises, if the circulating fluid volume variable quantity in the slurry tank has reached first jar of increment early warning value; Then carry out the well kick early warning, reached second jar of increment early warning value, then carry out the well kick alarm; Reached the 3rd jar of increment early warning value; Then carry out urgent well kick alarm, wherein the 3rd jar of increment early warning value is greater than second jar of increment early warning value, and second jar of increment early warning value is greater than first jar of increment early warning value; If the circulating fluid volume variable quantity in the slurry tank has reached first jar of decrement early warning value, then carry out the leakage early warning; Reached second jar of decrement early warning value; Then carry out the leakage alarm, reached the 3rd jar of decrement early warning value, then carry out urgent leakage alarm; Wherein the absolute value of the 3rd jar of decrement early warning value is greater than the absolute value of second jar of decrement early warning value, and the absolute value of second jar of decrement early warning value is greater than the absolute value of first jar of decrement early warning value.Increase can guarantee when the monitoring in exit is malfunctioning, still can report to the police to the monitoring of slurry tank.
Second purpose of the present invention reaches a kind of drilling safety monitoring alarm device that utilizes the drilling safety intelligent control method to monitor through following technical scheme; Comprise the rate of discharge meter, comprise flow meter support, flowmeter shell, flow meter sonar sensor, flow meter master control borad and flow meter charactron; Flowmeter shell is the cube box hat of a band transparent toughened glass window; The flow meter support bracket bolt is connected flowmeter shell gravity direction bottom; The flow meter sonar sensor is installed in the flowmeter shell one side that is connected with the flow meter support, and links to each other with the flow meter master control borad through lead; The flow meter master control borad is installed in flowmeter shell inside, and links to each other with the flow meter charactron through lead; The flow meter charactron is installed in the one side that the transparent toughened glass window is arranged in the flowmeter shell, and the outward surface; This rate of discharge meter is connected the top of bleed off pipe gravity direction through the flow meter support bracket bolt; The flow meter sonar sensor is measured the bleed off pipe liquid level, and the result is sent to the flow meter master control borad; The flow meter master control borad is according to liquid level, and bleed off pipe angle of inclination of having stored and bleed off pipe cross-sectional area, calculates the flow stream velocity in current bleed off pipe exit; If the flow stream velocity variable quantity has reached the first speed increment early warning value, then flow meter master control borad control flow meter charactron shows the well kick sign; If the flow stream velocity variable quantity has reached the first speed decrement early warning value, then flow meter master control borad control flow meter charactron shows the leakage sign.
Further, said monitoring alarm device also comprises fluid level transmitter, and this fluid level transmitter comprises transmitter support, transmitter housing, transmitter sonar sensor, transmitter master control borad and transmitter charactron; The transmitter housing is one to have the cube box hat of transparent toughened glass window; The transmitter support bracket bolt is connected transmitter housing gravity direction bottom; The transmitter sonar sensor is installed in the transmitter housing one side that is connected with the transmitter support, and links to each other with the transmitter master control borad through lead; The transmitter master control borad is installed in the transmitter enclosure interior, and links to each other with the transmitter charactron through lead; The transmitter charactron is installed in the one side that the transparent toughened glass window is arranged in the transmitter housing, and the outward surface; This fluid level transmitter is connected the top of slurry tank gravity direction through the transmitter support bracket bolt; The transmitter sonar sensor is measured the slurry tank liquid level, and the result is sent to the transmitter master control borad; The transmitter master control borad is according to liquid level, and the slurry tank cross-sectional area of having stored, calculates the liquid measure of current slurry tank; If a jar liquid measure has reached first jar of high power capacity early warning value, or the circulating fluid volume variable quantity reached first jar of increment early warning value, and then transmitter master control borad control transmitter charactron shows the well kick sign; If a jar liquid measure has reached first jar of low capacity early warning value, or a jar liquid measure variable quantity reached first jar of decrement early warning value, and then transmitter master control borad control transmitter charactron shows the leakage sign.Increase can guarantee when the monitoring in exit is malfunctioning, still can report to the police to the monitoring of slurry tank.
Further, said rate of discharge meter also comprises the flow meter temperature pick up, is used to measure bleed off pipe exit temperature; Said fluid level transmitter also comprises the transmitter temperatures sensor, is used to measure the slurry tank temperature inside; When the rate of discharge meter is monitored out, if the flow stream velocity variable quantity has reached second speed increment early warning value, then the flicker of flow meter master control borad control flow meter charactron shows the well kick sign, and second speed increment early warning value is greater than the first speed increment early warning value; If the flow stream velocity variable quantity has reached second speed decrement early warning value, then the flicker of flow meter master control borad control flow meter charactron shows the leakage sign, and the absolute value of second speed decrement early warning value is greater than the absolute value of the first speed decrement early warning value; When fluid level transmitter detects; If a jar liquid measure has reached second jar of high power capacity early warning value; Or the circulating fluid volume variable quantity has reached second jar of increment early warning value; Then the flicker of transmitter master control borad control transmitter charactron shows the well kick sign, and second jar of high power capacity early warning value is greater than first jar of high power capacity early warning value, and second jar of increment early warning value is greater than first jar of increment early warning value; If a jar liquid measure has reached second jar of low capacity early warning value; Or the circulating fluid volume variable quantity has reached second jar of decrement early warning value; Then the flicker of transmitter master control borad control transmitter charactron shows the leakage sign; Second jar of low capacity early warning value is less than first jar of low capacity early warning value, and the absolute value of second jar of decrement early warning value is greater than the absolute value of first jar of decrement early warning value.Temperature is monitored, help the drilling well monitor staff and judge bored shaft understratum temperature conditions, increase by second state simultaneously and help representing more critical well kick or leakage state, be convenient to the drilling well monitor staff and carry out safety management.
Further, said monitoring alarm device also comprises at least two monitor terminals, and this monitor terminal links to each other with rate of discharge meter and liquid level transmitter respectively through control cables; A monitor terminal is installed in situ of drilling well, and another monitor terminal is installed in the driller house of far-end; This monitor terminal is used to store the status data and the current state that shows bleed off pipe outlet and slurry tank of bleed off pipe outlet and slurry tank; And when rate of discharge meter or fluid level transmitter demonstration well kick or leakage sign, monitor terminal also shows well kick or leakage sign simultaneously; And when rate of discharge meter or fluid level transmitter flicker demonstration well kick or leakage sign, monitor terminal also flicker simultaneously shows well kick or leakage sign; And when the temperature that monitors when rate of discharge meter or fluid level transmitter surpassed the temperature early warning value that monitor terminal sets, displays temperature identified unusually.Increase by two monitor terminals and help the monitor staff and drilling well is monitored simultaneously, be convenient to monitoring management at situ of drilling well and remote monitoring center.
Further, this monitoring alarm device also comprises at least one audible alarm, links to each other with rate of discharge meter, fluid level transmitter and monitor terminal through control cables respectively; When the rate of discharge meter monitors the flow stream velocity variable quantity when reaching third speed increment early warning value; Or monitor a jar liquid measure when reaching the 3rd jar of high power capacity early warning value when fluid level transmitter; Or monitor the circulating fluid volume variable quantity when reaching the 3rd jar of increment early warning value when fluid level transmitter; This audible alarm is carried out audible alarm, and wherein, third speed increment early warning value is greater than second speed increment early warning value; The 3rd jar of high power capacity early warning value is greater than second jar of high power capacity early warning value, and the 3rd jar of increment early warning value is greater than second jar of increment early warning value; When the rate of discharge meter monitors the flow stream velocity variable quantity when reaching third speed decrement early warning value; Or monitor a jar liquid measure when reaching the 3rd jar of low capacity early warning value when fluid level transmitter; Or monitor the circulating fluid volume variable quantity when reaching the 3rd jar of decrement early warning value when fluid level transmitter; This audible alarm is carried out audible alarm, and wherein, the absolute value of third speed decrement early warning value is greater than the absolute value of second speed decrement early warning value; The 3rd jar of low capacity early warning value is less than second jar of low capacity early warning value, and the absolute value of the 3rd jar of decrement early warning value is greater than the absolute value of second jar of decrement early warning value.Increase voice guard and help representing very critical well kick or leakage state with the third state, the while audible alarm is convenient to the drilling well monitor staff and is in time speedily carried out rescue work.
Beneficial effect of the present invention is: the present invention has announced a kind of monitoring to flow stream velocity in the bleed off pipe exit of passing through, and reaches the method that alert if is promptly reported to the police, and can find well kick or leakage dangerous situation in early days timely; Be real-time because of monitoring simultaneously, the such situation that wrong report occurs of slurry tank can not take place, increased security and stability flow stream velocity; The present invention has also announced a kind of rate of discharge meter that utilizes sonar sensor that the exit flow stream velocity is monitored; Because sonar sensor is untouchable; Thereby guarantee the stable of rate of discharge meter work; Can not occur situations such as work is malfunctioning because of the clamping stagnation of mud, increase the stability of security monitoring work.
Description of drawings
Fig. 1 is the structural representation of the specific embodiment of the invention in drilling process;
Fig. 2 is the structural representation of the specific embodiment of the invention in trip-out process;
Fig. 3 is the structural representation of the specific embodiment of the invention in going down process.
Wherein, 1 is bleed off pipe, and 2 is the rate of discharge meter, and 3 is slurry tank, and 4 is fluid level transmitter, and 5 is monitor terminal.
The specific embodiment
Disclosed all characteristics in this manual, or the step in disclosed all methods or the process except mutually exclusive characteristic and/or the step, all can make up by any way.
Disclosed arbitrary characteristic in this manual (comprising any claim, summary and accompanying drawing) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.The description to alternative features is to being equal to the description of technical characterictic, must not being regarded as the donation to the public in this manual simultaneously.
Term in this manual (comprising any claim, summary and accompanying drawing) like no specified otherwise, all is defined as the peculiar implication in this area if having the peculiar implication of general sense and this area simultaneously.
Embodiment 1:
A kind of drilling safety intelligent control method, mainly form by following steps:
S1: measuring process: flow stream velocity and the fluid temperature of measuring the bleed off pipe outlet; Measure the liquid measure in the slurry tank;
S2: early warning step:,, then carry out the well kick early warning such as 1L/s if this flow stream velocity variable quantity has reached the first speed increment early warning value; If this flow stream velocity variable quantity has reached second speed increment early warning value,, then carry out the well kick alarm such as 2L/s; If this flow stream velocity variable quantity has reached third speed increment early warning value,, then carry out urgent well kick alarm such as 3L/s;
Simultaneously, if this flow stream velocity variable quantity has reached the first speed decrement early warning value, such as-1L/s, then carry out the leakage early warning; If this flow stream velocity variable quantity has reached second speed decrement early warning value, such as-2L/s, then carry out the leakage alarm; If this flow stream velocity variable quantity has reached third speed decrement early warning value, such as-3L/s, then carry out urgent leakage alarm;
Simultaneously, if fluid temperature surpasses the temperature early warning value, then carry out the temperature early warning;
Simultaneously, if circulating fluid volume variable quantity in the slurry tank has reached first jar of increment early warning value, such as 1m
3, then carry out the well kick early warning; Reached second jar of increment early warning value, such as 2m
3, then carry out the well kick alarm; Reached the 3rd jar of increment early warning value, such as 3m
3, then carry out urgent well kick alarm;
Simultaneously, if the circulating fluid volume variable quantity in the slurry tank has reached first jar of decrement early warning value, such as-1m
3, then carry out the leakage early warning; Reached second jar of decrement early warning value, such as-2m
3, then carry out the leakage alarm; Reached the 3rd jar of decrement early warning value, such as-3m
3, then carry out urgent leakage alarm.
Above-mentioned all early warning values can be confirmed according to the on-the-spot values such as height of concrete drilling tool specification, pit shaft size, concentration of hydraulic mixture.In addition, early warning can be to show the early warning symbol, and alarm can be that flicker shows the early warning symbol, and critical alarm also carries out the warning of other modes such as sound, vibrations or short message telephone when can be flicker demonstration early warning symbol.The early warning symbol then can be the expression well kick of any literal or figure or the symbol of leakage.
Above-mentioned circulating fluid volume is meant because that slurry tank can have is a plurality of, in drilling process, participate in well mud inject with flow out circulation possibly have only certain several slurry tank, therefore, circulating fluid volume is that value participates in the total liquid measure of mud in the slurry tank of mud circulation.
Embodiment 2:
A kind of drilling safety monitoring alarm device is made up of rate of discharge meter, fluid level transmitter, voice guard and two monitor terminals at least.
This rate of discharge meter comprises flow meter support, flowmeter shell, flow meter sonar sensor, flow meter master control borad, flow meter charactron and flow meter temperature pick up; Flowmeter shell is the cube box hat of a band transparent toughened glass window; The flow meter support bracket bolt is connected flowmeter shell gravity direction bottom; The flow meter sonar sensor is installed in the flowmeter shell one side that is connected with the flow meter support, and links to each other with the flow meter master control borad through lead; The flow meter master control borad is installed in flowmeter shell inside, and links to each other with the flow meter charactron through lead; The flow meter charactron is installed in the one side that the transparent toughened glass window is arranged in the flowmeter shell, and the outward surface; This rate of discharge meter is connected the top of bleed off pipe gravity direction through the flow meter support bracket bolt; The flow meter sonar sensor is measured the bleed off pipe liquid level, and the result is sent to the flow meter master control borad; Flow meter temperature sensor measurement bleed off pipe exit temperature, and the result sent to the flow meter master control borad; The flow meter master control borad is according to liquid level, and bleed off pipe angle of inclination of having stored and bleed off pipe cross-sectional area, calculates the flow stream velocity in current bleed off pipe exit.
This fluid level transmitter comprises transmitter support, transmitter housing, transmitter sonar sensor, transmitter master control borad, transmitter charactron and transmitter temperatures sensor; The transmitter housing is one to have the cube box hat of transparent toughened glass window; The transmitter support bracket bolt is connected transmitter housing gravity direction bottom; The transmitter sonar sensor is installed in the transmitter housing one side that is connected with the transmitter support, and links to each other with the transmitter master control borad through lead; The transmitter master control borad is installed in the transmitter enclosure interior, and links to each other with the transmitter charactron through lead; The transmitter charactron is installed in the one side that the transparent toughened glass window is arranged in the transmitter housing, and the outward surface; This transmitter fluid level transmitter is connected the top of slurry tank gravity direction through the transmitter support; The transmitter sonar sensor is measured the slurry tank liquid level, and the result is sent to the transmitter master control borad; Transmitter temperatures sensor measurement bleed off pipe exit temperature, and the result sent to the transmitter master control borad; The transmitter master control borad is according to liquid level, and the slurry tank cross-sectional area of having stored, calculates the liquid measure of current slurry tank.
This audible alarm links to each other with rate of discharge meter, fluid level transmitter and monitor terminal through control cables respectively.
This monitor terminal links to each other with rate of discharge meter and liquid level transmitter respectively through control cables; A monitor terminal is installed in situ of drilling well, and another monitor terminal is installed in the driller house of far-end; This monitor terminal is used to store the status data and the current state that shows bleed off pipe outlet and slurry tank of bleed off pipe outlet and slurry tank; And when rate of discharge meter or fluid level transmitter demonstration well kick or leakage sign, monitor terminal also shows well kick or leakage sign simultaneously; And when rate of discharge meter or fluid level transmitter flicker demonstration well kick or leakage sign, monitor terminal also flicker simultaneously shows well kick or leakage sign; And when the temperature that monitors when rate of discharge meter or fluid level transmitter surpassed the temperature early warning value that monitor terminal sets, displays temperature identified unusually.
The normal workflow of whole drilling well and drilling safety supervising device is following:
Drilling process: begin to creep into, along with drill bit down bores, pit shaft is more and more darker, need the landwaste that drilling well forms be come out to carrying with mud; In order to prevent that the strata pressure balance is destroyed the blowout that causes, the pressure that also needs the mud fluid column to form is kept the strata pressure balance simultaneously.This moment, the high pressure drilling pump was with the mud in the slurry tank; Through pressure piping, drilling rod inner passage and bit port; Be injected on the stratum of drill bit below; Make the mud band of the bleed off pipe outflow of those landwaste, filter out landwaste through processes such as vibration screenings more at last, make the mud of relative clean get back to slurry tank through the pit shaft top.So move in circles, both taken the landwaste in the pit shaft out of, kept the strata pressure balance again.
Trip-out process: when the stage spudder does completion and need drilling rod be taken out from pit shaft, because the taking-up of drilling rod can cause pit shaft that the pressure that the stratum produces is reduced, so need to add mud with increase head of liquid, equilibrium strata pressure.At this moment, the low-pressure injection pump directly is poured in mud in the pit shaft through pipeline, and the limit is got the drilling rod limit and poured into mud, and unnecessary mud flows out through bleed off pipe, flows back to slurry tank, and last drilling tool takes out fully, and trip-out process is accomplished.
Going down process: after the wearing and tearing drill bit is laid down the changing-over green bit, need immediately drilling tool to be put back in the pit shaft.Along with drilling rod putting into gradually, can original mud in the pit shaft be squeezed out a part and come, this part mud will flow back to slurry tank through bleed off pipe, put into pit shaft fully up to drilling rod, connect kelly bar, and going down process is accomplished.
In above-mentioned three steps, because the subterranean strata pressure distribution is uneven, possibly there is high pressure in the layer position that has, and possibly there is low pressure in the layer position that has again, when these rock stratum are got in drilling well, just might produce well kick or leakage; Again since pull out of hole or going down process in, it is too fast that drilling rod rises, perhaps too fast under the drilling rod all might cause well kick or leakage.The standard of judging well kick or leakage is the situation of change of mud amount in the pit shaft.Increase or unusual the minimizing if the mud that overflows is unusual, that probably is that well kick or leakage have taken place.
Drilling safety monitoring alarm device of the present invention just can change the mud situation of judging in the pit shaft at the sensitive early stage flow stream velocity according to the bleed off pipe outlet of bleed off pipe outlet, also can come the mud situation in the judgement pit shaft in later stage according to the circulating fluid volume situation of change in the slurry tank at circulating mud jar place.Be meant with following alleged circulating fluid volume here; Because it is a plurality of that slurry tank can have, in drilling process, that participates in well mud injection and outflow circulation possibly have only certain several slurry tank; Therefore, circulating fluid volume is that value participates in the total liquid measure of mud in the slurry tank of mud circulation.
Below be judgement and alarm procedure to well kick:
If the flow stream velocity variable quantity in bleed off pipe exit has reached the first speed increment early warning value, then flow meter master control borad control flow meter charactron shows the well kick sign; If the liquid measure of the slurry tank that monitors of fluid level transmitter has reached first jar of high power capacity early warning value, or the circulating fluid volume variable quantity reached first jar of increment early warning value, and then transmitter master control borad control transmitter charactron shows the well kick sign.Simultaneously, two monitor terminals that are distributed in situ of drilling well and driller house also show the well kick sign when any shows well kick sign at rate of discharge meter or fluid level transmitter simultaneously.All early warning values can come concrete confirming according to the on-the-spot values such as height of concrete drilling tool specification, pit shaft size, concentration of hydraulic mixture; In general; The first speed increment early warning value can be taken as 1L/s, and first jar of high power capacity early warning value can be taken as 80%, the first jar of increment early warning value and can be taken as 1 m
3As for the well kick sign can be the symbol of the expression well kick of any literal or figure.
When the rate of discharge meter is monitored out, if the flow stream velocity variable quantity has reached second speed increment early warning value, then the flicker of flow meter master control borad control flow meter charactron shows the well kick sign, and second speed increment early warning value is greater than the first speed increment early warning value; When fluid level transmitter detects, if a jar liquid measure has reached second jar of high power capacity early warning value, or the circulating fluid volume variable quantity reached second jar of increment early warning value, and then the flicker of transmitter master control borad control transmitter charactron shows the well kick sign.Second jar of high power capacity early warning value is greater than first jar of high power capacity early warning value, and second jar of increment early warning value is greater than first jar of increment early warning value.Simultaneously, two monitor terminals that are distributed in situ of drilling well and driller house when rate of discharge meter or any flicker of fluid level transmitter show well kick sign also flicker simultaneously show the well kick sign.The second speed increment early warning value here can be taken as 2L/s, and second jar of high power capacity early warning value can be taken as 90%, the second jar of increment early warning value and can be taken as 2 m
3
When the rate of discharge meter monitors the flow stream velocity variable quantity when reaching third speed increment early warning value; Or monitor a jar liquid measure when reaching the 3rd jar of high power capacity early warning value when fluid level transmitter; Or monitoring the circulating fluid volume variable quantity when reaching the 3rd jar of increment early warning value when fluid level transmitter, this audible alarm is carried out audible alarm.Wherein, third speed increment early warning value is greater than second speed increment early warning value, and the 3rd jar of high power capacity early warning value is greater than second jar of high power capacity early warning value, and the 3rd jar of increment early warning value is greater than second jar of increment early warning value.The third speed increment early warning value here can be taken as 3L/s, and the 3rd jar of high power capacity early warning value can be taken as 95%, the three jar of increment early warning value and can be taken as 3m
3
Below be judgement and alarm procedure to leakage:
Reached the first speed decrement early warning value if the rate of discharge meter monitors the flow stream velocity variable quantity in bleed off pipe exit, then flow meter master control borad control flow meter charactron shows the leakage sign.If the liquid measure that monitors in the slurry tank of fluid level transmitter has reached first jar of low capacity early warning value, or the circulating fluid volume variable quantity reached first jar of decrement early warning value, and then transmitter master control borad control transmitter charactron shows the leakage sign.Simultaneously, two monitor terminals that are distributed in situ of drilling well and driller house also show the leakage sign when any shows leakage sign at rate of discharge meter or fluid level transmitter simultaneously.In general, the first speed decrement early warning value can be taken as-1L/s, and first jar of low capacity early warning value can be taken as 30%, the first jar of decrement early warning value and can be taken as-1 m
3As for the leakage sign can be the symbol of the expression leakage of any literal or figure.
When the rate of discharge meter is monitored out; If the flow stream velocity variable quantity has reached second speed decrement early warning value; Then the flicker of flow meter master control borad control flow meter charactron shows the leakage sign, and the absolute value of second speed decrement early warning value is greater than the absolute value of the first speed decrement early warning value; When fluid level transmitter detects; If a jar liquid measure has reached second jar of low capacity early warning value; Or the circulating fluid volume variable quantity has reached second jar of decrement early warning value; Then the flicker of transmitter master control borad control transmitter charactron shows the leakage sign, and second jar of low capacity early warning value is less than first jar of low capacity early warning value, and the absolute value of second jar of decrement early warning value is greater than the absolute value of first jar of decrement early warning value.Simultaneously, two monitor terminals that are distributed in situ of drilling well and driller house when rate of discharge meter or any flicker of fluid level transmitter show leakage sign also flicker simultaneously show the leakage sign.Second speed decrement early warning value can be taken as-2L/s, and second jar of low capacity early warning value can be taken as 20%, the second jar of decrement early warning value and can be taken as-2 m
3
When the rate of discharge meter monitors the flow stream velocity variable quantity when reaching third speed decrement early warning value; Or monitor a jar liquid measure when reaching the 3rd jar of low capacity early warning value when fluid level transmitter; Or monitor the circulating fluid volume variable quantity when reaching the 3rd jar of decrement early warning value when fluid level transmitter; This audible alarm is carried out audible alarm, and wherein, the absolute value of third speed decrement early warning value is greater than the absolute value of second speed decrement early warning value; The 3rd jar of low capacity early warning value is less than second jar of low capacity early warning value, and the absolute value of the 3rd jar of decrement early warning value is greater than the absolute value of second jar of decrement early warning value.The 3rd decrement early warning value can be taken as-3L/s, and the 3rd jar of low capacity early warning value can be taken as 10%, the three jar of decrement early warning value and can be taken as-3 m
3
In above-mentioned whole process, what all real-time data were all real-time is presented on two monitor terminals, and is write down and stored by monitor terminal.
Claims (10)
1. a drilling safety intelligent control method is characterized in that, may further comprise the steps:
S1: measuring process: the flow stream velocity of measuring the bleed off pipe outlet;
S2: early warning step:, then carry out the well kick early warning if this flow stream velocity variable quantity has reached the first speed increment early warning value; If this flow stream velocity variable quantity has reached the first speed decrement early warning value, then carry out the leakage early warning.
2. according to the said drilling safety intelligent control method of claim 1, it is characterized in that:
Said step S2 also comprises: if this flow stream velocity variable quantity has reached second speed increment early warning value, then carry out the well kick alarm, second speed increment early warning value is greater than the first speed increment early warning value; If this flow stream velocity variable quantity has reached second speed decrement early warning value, then carry out the leakage alarm, the absolute value of second speed decrement early warning value is greater than the absolute value of the first speed decrement early warning value.
3. according to the said drilling safety intelligent control method of claim 1, it is characterized in that:
Said step S2 also comprises: if this flow stream velocity variable quantity has reached third speed increment early warning value, then carry out urgent well kick alarm, third speed increment early warning value is greater than second speed increment early warning value; If this flow stream velocity variable quantity has reached third speed decrement early warning value, then carry out urgent leakage alarm, the absolute value of third speed decrement early warning value is greater than the absolute value of second speed decrement early warning value.
4. according to the said drilling safety intelligent control method of claim 1, it is characterized in that:
Said step S1 also comprises, measures the fluid temperature of bleed off pipe outlet;
Said step S2 also comprises, if fluid temperature surpasses the temperature early warning value, then carries out the temperature early warning.
5. according to the said drilling safety intelligent control method of claim 1, it is characterized in that:
Said step S1 also comprises, measures the liquid measure in the slurry tank;
Said step S2 also comprises, if the circulating fluid volume variable quantity in the slurry tank has reached first jar of increment early warning value; Then carry out the well kick early warning, reached second jar of increment early warning value, then carry out the well kick alarm; Reached the 3rd jar of increment early warning value; Then carry out urgent well kick alarm, wherein the 3rd jar of increment early warning value is greater than second jar of increment early warning value, and second jar of increment early warning value is greater than first jar of increment early warning value;
If the circulating fluid volume variable quantity in the slurry tank has reached first jar of decrement early warning value, then carry out the leakage early warning; Reached second jar of decrement early warning value; Then carry out the leakage alarm, reached the 3rd jar of decrement early warning value, then carry out urgent leakage alarm; Wherein the absolute value of the 3rd jar of decrement early warning value is greater than the absolute value of second jar of decrement early warning value, and the absolute value of second jar of decrement early warning value is greater than the absolute value of first jar of decrement early warning value.
6. a drilling safety monitoring alarm device that utilizes the drilling safety intelligent control method to monitor is characterized in that, comprising:
The rate of discharge meter comprises flow meter support, flowmeter shell, flow meter sonar sensor, flow meter master control borad and flow meter charactron; Flowmeter shell is the cube box hat of a band transparent toughened glass window; The flow meter support bracket bolt is connected flowmeter shell gravity direction bottom; The flow meter sonar sensor is installed in the flowmeter shell one side that is connected with the flow meter support, and links to each other with the flow meter master control borad through lead; The flow meter master control borad is installed in flowmeter shell inside, and links to each other with the flow meter charactron through lead; The flow meter charactron is installed in the one side that the transparent toughened glass window is arranged in the flowmeter shell, and the outward surface;
This rate of discharge meter is connected the top of bleed off pipe gravity direction through the flow meter support bracket bolt;
The flow meter sonar sensor is measured the bleed off pipe liquid level, and the result is sent to the flow meter master control borad;
The flow meter master control borad is according to liquid level, and bleed off pipe angle of inclination of having stored and bleed off pipe cross-sectional area, calculates the flow stream velocity in current bleed off pipe exit;
If the flow stream velocity variable quantity has reached the first speed increment early warning value, then flow meter master control borad control flow meter charactron shows the well kick sign; If the flow stream velocity variable quantity has reached the first speed decrement early warning value, then flow meter master control borad control flow meter charactron shows the leakage sign.
7. according to the said drilling safety monitoring alarm device of claim 6, it is characterized in that:
Said monitoring alarm device also comprises fluid level transmitter, and this fluid level transmitter comprises transmitter support, transmitter housing, transmitter sonar sensor, transmitter master control borad and transmitter charactron; The transmitter housing is one to have the cube box hat of transparent toughened glass window; The transmitter support bracket bolt is connected transmitter housing gravity direction bottom; The transmitter sonar sensor is installed in the transmitter housing one side that is connected with the transmitter support, and links to each other with the transmitter master control borad through lead; The transmitter master control borad is installed in the transmitter enclosure interior, and links to each other with the transmitter charactron through lead; The transmitter charactron is installed in the one side that the transparent toughened glass window is arranged in the transmitter housing, and the outward surface;
This fluid level transmitter is connected the top of slurry tank gravity direction through the transmitter support bracket bolt;
The transmitter sonar sensor is measured the slurry tank liquid level, and the result is sent to the transmitter master control borad;
The transmitter master control borad is according to liquid level, and the slurry tank cross-sectional area of having stored, calculates the liquid measure of current slurry tank;
If a jar liquid measure has reached first jar of high power capacity early warning value, or the circulating fluid volume variable quantity reached first jar of increment early warning value, and then transmitter master control borad control transmitter charactron shows the well kick sign; If a jar liquid measure has reached first jar of low capacity early warning value, or the circulating fluid volume variable quantity reached first jar of decrement early warning value, and then transmitter master control borad control transmitter charactron shows the leakage sign.
8. according to the said drilling safety monitoring alarm device of claim 7, it is characterized in that:
Said rate of discharge meter also comprises the flow meter temperature pick up, is used to measure bleed off pipe exit temperature;
Said fluid level transmitter also comprises the transmitter temperatures sensor, is used to measure the slurry tank temperature inside;
When the rate of discharge meter is monitored out, if the flow stream velocity variable quantity has reached second speed increment early warning value, then the flicker of flow meter master control borad control flow meter charactron shows the well kick sign, and second speed increment early warning value is greater than the first speed increment early warning value; If the flow stream velocity variable quantity has reached second speed decrement early warning value, then the flicker of flow meter master control borad control flow meter charactron shows the leakage sign, and the absolute value of second speed decrement early warning value is greater than the absolute value of the first speed decrement early warning value;
When fluid level transmitter detects; If a jar liquid measure has reached second jar of high power capacity early warning value; Or the circulating fluid volume variable quantity has reached second jar of increment early warning value; Then the flicker of transmitter master control borad control transmitter charactron shows the well kick sign, and second jar of high power capacity early warning value is greater than first jar of high power capacity early warning value, and second jar of increment early warning value is greater than first jar of increment early warning value; If a jar liquid measure has reached second jar of low capacity early warning value; Or the circulating fluid volume variable quantity has reached second jar of decrement early warning value; Then the flicker of transmitter master control borad control transmitter charactron shows the leakage sign; Second jar of low capacity early warning value is less than first jar of low capacity early warning value, and the absolute value of second jar of decrement early warning value is greater than the absolute value of first jar of decrement early warning value.
9. said according to Claim 8 drilling safety monitoring alarm device is characterized in that:
Said monitoring alarm device also comprises at least two monitor terminals, and this monitor terminal links to each other with rate of discharge meter and liquid level transmitter respectively through control cables; A monitor terminal is installed in situ of drilling well, and another monitor terminal is installed in the driller house of far-end;
This monitor terminal is used to store the status data and the current state that shows bleed off pipe outlet and slurry tank of bleed off pipe outlet and slurry tank; And when rate of discharge meter or fluid level transmitter demonstration well kick or leakage sign, monitor terminal also shows well kick or leakage sign simultaneously; And when rate of discharge meter or fluid level transmitter flicker demonstration well kick or leakage sign, monitor terminal also flicker simultaneously shows well kick or leakage sign; And when the temperature that monitors when rate of discharge meter or fluid level transmitter surpassed the temperature early warning value that monitor terminal sets, displays temperature identified unusually.
10. according to the said drilling safety monitoring alarm device of claim 9, it is characterized in that:
This monitoring alarm device also comprises at least one audible alarm, links to each other with rate of discharge meter, fluid level transmitter and monitor terminal through control cables respectively;
When the rate of discharge meter monitors the flow stream velocity variable quantity when reaching third speed increment early warning value; Or monitor a jar liquid measure when reaching the 3rd jar of high power capacity early warning value when fluid level transmitter; Or monitor the circulating fluid volume variable quantity when reaching the 3rd jar of increment early warning value when fluid level transmitter; This audible alarm is carried out audible alarm, and wherein, third speed increment early warning value is greater than second speed increment early warning value; The 3rd jar of high power capacity early warning value is greater than second jar of high power capacity early warning value, and the 3rd jar of increment early warning value is greater than second jar of increment early warning value;
When the rate of discharge meter monitors the flow stream velocity variable quantity when reaching third speed decrement early warning value; Or monitor a jar liquid measure when reaching the 3rd jar of low capacity early warning value when fluid level transmitter; Or monitor the circulating fluid volume variable quantity when reaching the 3rd jar of decrement early warning value when fluid level transmitter; This audible alarm is carried out audible alarm, and wherein, the absolute value of third speed decrement early warning value is greater than the absolute value of second speed decrement early warning value; The 3rd jar of low capacity early warning value is less than second jar of low capacity early warning value, and the absolute value of the 3rd jar of decrement early warning value is greater than the absolute value of second jar of decrement early warning value.
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| CN112740244A (en) * | 2018-07-06 | 2021-04-30 | 瓦卢瑞克石油天然气法国有限公司 | Method for controlling the condition of a tubular, method for controlling the condition of a well, system, tubular |
| CN115637963A (en) * | 2021-07-20 | 2023-01-24 | 中国石油天然气集团有限公司 | Rock mass filtering system |
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| CN103277089A (en) * | 2013-06-27 | 2013-09-04 | 西南石油大学 | Well-drilling early overflow loss ground monitoring device |
| CN104696012B (en) * | 2013-12-06 | 2018-08-24 | 通用电气公司 | Drilling system and its well kick alarm mechanism and method |
| CN104131810A (en) * | 2014-07-14 | 2014-11-05 | 中南大学 | Novel well leakage warning device and method |
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| CN115637963A (en) * | 2021-07-20 | 2023-01-24 | 中国石油天然气集团有限公司 | Rock mass filtering system |
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