CN209163759U - A kind of overflow leakage monitoring device - Google Patents
A kind of overflow leakage monitoring device Download PDFInfo
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- CN209163759U CN209163759U CN201821943532.9U CN201821943532U CN209163759U CN 209163759 U CN209163759 U CN 209163759U CN 201821943532 U CN201821943532 U CN 201821943532U CN 209163759 U CN209163759 U CN 209163759U
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Abstract
The utility model petroleum exploration and development drilling engineering technical field more particularly to the device of well kick leakage monitoring.It can fast and accurately find early stage overflow and leakage.A kind of overflow leakage monitoring device, including drilling well rate of discharge monitoring unit and drilling well inlet flow rate monitoring unit.Inlet flow rate monitoring unit includes electromagnetic flowmeter；Rate of discharge monitoring unit includes flowmeter short unit and dashpot.The flowmeter short unit includes the left branch pipe and right branch pipe be responsible for, be connected respectively with supervisor, and the both ends of left branch pipe are connected with supervisor respectively, and the both ends of right branch pipe are connected with supervisor respectively；It is each provided with a coriolis force flowmeter on left branch pipe, right branch pipe, main pneumatic knife gate valve is provided on supervisor；One end of the supervisor of flowmeter short unit is connected with dashpot by flange, the other end of flowmeter short unit is by wire rope hanging below drilling platforms, and be connected with well head drainage tube by hose, dashpot is arranged on the reciprocating sieve dashpot of drilling well.
Description
Technical field
The utility model petroleum exploration and development drilling engineering technical field more particularly to the device of well kick leakage monitoring.
Background technique
Well kick leakage is down hole problem serious and universal in drilling well, and such as having found that it is likely that not in time will cause blowout
Even more major accident, therefore discovery early stage well kick leakage is particularly important in time, country's situ of drilling well finds well kick leakage at present
It is with relative discharge variation to judge whether that overflow and leakage occurs by the way that the total pond body of monitoring mud is long-pending.
Current detection method has the following disadvantages.
The interior empty sectional area of conventional mud tank is about 20m2, when overflow or leakage amount are less than 1m3, the liquid of 4 slurry tanks
Face height change is less than 1cm, and mud pit level monitoring device error is in 1cm or so, therefore overflow and leakage to 1m3 is less than
It can not carry out accurate measurements.Overflow and leakage are judged with relative discharge parameter with total pond body is long-pending, the method is rough, lag,
It is difficult to exclude the interference caused by bubbles in mud.
Summary of the invention
The utility model provides a kind of overflow leakage monitoring device aiming at defect of the existing technology, can be fast
Fast accurately discovery early stage overflow and leakage.
To achieve the above object, the utility model adopts the following technical solution.
A kind of overflow leakage monitoring device, including drilling well rate of discharge monitoring unit and drilling well inlet flow rate monitoring unit.
The inlet flow rate monitoring unit includes electromagnetic flowmeter, and the electromagnetic flowmeter is for detecting in drilling well water-line
Flow.
The rate of discharge monitoring unit includes flowmeter short unit and dashpot.
The flowmeter short unit include supervisor, respectively with the supervisor left branch pipe and right branch pipe that are connected, and left branch pipe
Both ends are connected with supervisor respectively, and the both ends of right branch pipe are connected with supervisor respectively；It is each provided on the left branch pipe, right branch pipe
One coriolis force flowmeter is provided with main pneumatic knife gate valve on the supervisor；One end of the supervisor of flowmeter short unit and buffering
Slot is connected by flange, and the other end of flowmeter short unit passes through wire rope hanging below drilling platforms, and and well head
Drainage tube is connected by hose, and is sealed with metal clamps clamping；The reciprocating sieve dashpot of drilling well is arranged in the dashpot
On.
As a kind of preferred embodiment of the utility model, left branch pipe is opposite with the position of right branch pipe and sets, left branch pipe distribution
In supervisor side, right branch pipe is distributed in the supervisor other side；The both ends and supervisor junction of left branch pipe are each provided with a pneumatic disconnecting link
Valve, right branch pipe both ends and supervisor junction are each provided with a pneumatic knife gate valve.
As another preferred embodiment of the utility model, the left branch pipe, the shape of right branch pipe are identical, are in " Contraband " word
Shape, two Fang shape structures are opposite and set, are connected with supervisor, formed " in " shape structure.
As another preferred embodiment of the utility model, the dashpot (non-reciprocating sieve dashpot) is rectangular box,
Rectangular box front end middle and lower part is provided with seamless steel pipe interface, for connecting supervisor；Rectangular box rear end bottom surface is provided with plasma discharge
Mouth or discharge pipe.
As another preferred embodiment of the utility model, the section of thick liquid discharge mouth and discharge pipe is rounded, rectangle or triangle
The size of shape, thick liquid discharge mouth and discharge pipe can guarantee that cabinet can normally be discharged with the mud of sand mud.
As another preferred embodiment of the utility model, coriolis force flowmeter and electromagnetic flowmeter pass through RS485 respectively
RS 232 serial ports conversion module is connected with PC machine serial ports, and pneumatic knife gate valve is connected by gas pipeline with gas source, on the gas pipeline also
It is provided with pneumatic bigeminy part and solenoid valve.
A kind of overflow leakage monitoring method, includes the following steps.
Step 1, monitoring outlet instantaneous flow simultaneously calculate accumulative exit volume flow.
The instantaneous mud amount returned out by flowmeter monitoring outlet, obtains output instantaneous mass flow Mflowout, density
Mdoa and temperature parameter；Instantaneous output volume flow Vflowout is calculated；When using two coriolis force flowmeters, instantaneously
Exit volume flow is the sum of the instantaneous volume flow rate of two flowmeters.
Vflowout=Mflowout/Mdoa.
Accumulative exit volume flow G Vflowout is calculated in real time, is added up exit volume flow and is equal to currently accumulative outlet body
Product flow GtThe sum of Vflowout and instantaneous output volume flow.
G Vflowout=Gt Vflowout+ Vflowout。
Step 2, monitoring entrance instantaneous flow simultaneously calculate accumulative inlet volumetric flow.
By the electromagnetic flowmeter being mounted on slush pump water-line, real-time monitoring is pumped into instantaneous mud amount, and obtains
Instantaneous inlet volumetric flow Vflowin, when drilling well has three slush pumps, inlet volumetric flow is the electricity of three slush pumps installation
The sum of magnetic flowmeter instantaneous flow.
Accumulative inlet volumetric flow G Vflowin is equal to currently accumulative exit volume flow GtVflowin and instantaneous entrance
The sum of volume flow.
G Vflowin= Vflowin+ Gt Vflowin。
Step 3, early warning value are calculated to be triggered with early warning.
During early warning value calculates.
Early warning value uses the difference RTFD of entry and exit instantaneous volume flow rate.
RTFD= Vflowout-Vflowin。
Difference in flow early warning thresholding is set, as difference in flow RTFD>0.5L/s or RTFD<0.5L/s, starts to calculate overflow/leakage
The mud volume change CTV of mistake and lasting pre-warning time Time.
Start to record in real time and continues pre-warning time Time.
Accumulative exit volume flow G Vflowout and accumulative inlet volumetric flow G Vflowin are done into difference and calculate to obtain base
Plinth difference BD.
Start to calculate overflow/leakage mud volume variable quantity CTV.
CTV=G Vflowout-G Vflowin-BD。
Start to calculate overflow/leakage speed speed rate.
Speed rate= CTV/Time。
Early warning triggering: by flow difference RTFD, overflow/leakage mud volume CTV and lasting pre-warning time
Tri- parameters of Time are judged.
If: the L/s of -0.5 L/s < RTFD < 0.5 and the m3 of -0.2 m3 < CTV < 0.2 and the s of Time < 180, without alarm
It is excited.
If: the L/s of the RTFD>0.5 or L/s of RTFD<-0.5; CTV<0.2 m3;Then RTFD alarm is swashed the s of Time < 180
Hair.
If: the L/s of RTFD > 0.5; CTV>0.2 m3;Then RTFD, CTV alarm are excited the s of Time < 180.
If: the L/s of RTFD < -0.5; CTV<-0.2 m3;Then RTFD, CTV alarm are excited the s of Time < 180.
If: the L/s of RTFD > 0.5; CTV<0.2 m3;Then RTFD, Time alarm are excited the s of Time > 180.
If: the L/s of RTFD < -0.5; CTV<0.2 m3;Then RTFD, Time alarm are excited the s of Time > 180.
If the L/s of RTFD > 0.5; CTV<0.2 m3;Then RTFD, CTV, Time alarm are excited the s of Time > 180.
If the L/s of RTFD < -0.5; CTV<-0.2 m3;Then RTFD, CTV, Time alarm are excited Time > 180s.
The utility model beneficial effect compared with prior art.
1, the near real-time quantitative monitoring of drilling well rate of discharge and inlet flow rate is realized.
2, early stage well kick leakage can be fast and accurately identified.
3, overflow wastage and speed can be fast and accurately calculated, drilling technology personnel evaluation overflow is facilitated to miss journey
Degree, and take corresponding measure.
Detailed description of the invention
The utility model is described further with reference to the accompanying drawings and detailed description.Scope of protection of the utility model
It is not only limited to the statement of the following contents.
Fig. 1 is the utility model overflow leakage monitoring device integral installation schematic side view.
Fig. 2 is the utility model flowmeter short unit schematic top plan view.
Fig. 3 is the utility model dashpot schematic diagram.
Fig. 4 is schematic diagram in the utility model control cabinet case.
Fig. 5 is the utility model verification detection schematic diagram.
Fig. 6 is the utility model overflow/leakage monitoring process.
In figure, 1 be conduit group, 2 be pneumatic knife gate valve, 3 be coriolis force flowmeter, 4 be electromagnetic flowmeter, 5 be slush pump,
6 be dashpot, 7 be control cabinet, 8 be flange, 9 be well head drainage tube, 10 be hose, 11 be reciprocating sieve dashpot, 12 slurry tanks,
13 it is seamless elbow, 14 be supervisor, 16 be rectangle thick liquid discharge mouth, 17 be one meter of long seamless steel pipe, 18 be Flameproof box, 19 is wiring
Row, 20 be two-position three way magnetic valve, 21 be pneumatic bigeminy part, 22 be gas pipeline, 23 be gas pipeline it is slotting fastly, 24 be relay, 25
It is cable interface for BULKHEAD UNION, 26,27 be explosion-proof aviation plug, 28 is gas source interface.
Specific embodiment
As shown in figures 1 to 6, as a kind of specific embodiment of the utility model, by live test of many times, then guarantee
Under the premise of safety and firmness, reduce installation cost, finally preferentially and select specification of equipment and assembling mode it is as follows.
A kind of overflow leakage monitoring device includes: drilling well rate of discharge monitoring device and inlet flow rate monitoring device.
1, drilling well rate of discharge monitoring device includes flow monitoring device.
(1) flow monitoring device is made of conduit group, flowmeter short unit, dashpot.
1. conduit group: for flowmeter short unit, buffer cell interconnection and with external connection.Such as Fig. 1, by
Flanged joint multistage seamless steel pipe composition, chooses the flange of DN300 national standard PN1.6Mpa；Seamless steel pipe size is referring again to drilling team
Former pipe size, usually selecting wall thickness is 12mm；Outer diameter is the seamless steel pipe of 325mm.
2. flowmeter short unit: the flowmeter short unit include supervisor, respectively with the left branch pipe that is connected of supervisor and
Right branch pipe, and the both ends of left branch pipe are connected with supervisor respectively, the both ends of right branch pipe are connected with supervisor respectively；The left branch
It is each provided with a coriolis force flowmeter on pipe, right branch pipe, main pneumatic knife gate valve is provided on the supervisor；Flowmeter short unit
One end of supervisor be connected with dashpot by flange, the other end of flowmeter short unit is by wire rope hanging in drilling well
Below platform, and it is connected with well head drainage tube by hose, and is sealed with metal clamps clamping；The dashpot is sat down in mud
It starches on the reciprocating sieve dashpot above tank.Slush pump is connected with slurry tank side-lower by pipeline；Electricity is provided on the pipeline
Magnetic flowmeter.
Such as Fig. 2, choosing the coriolis force flowmeter that two entablature diameters are DN250, (interior measurement pipe is that two parallel bores are
The micro-bend pipe of 80mm), DN250, the 90 ° of seamless elbows that 4 materials are 316L are chosen, the national standard of pressure-bearing 1.6Mpa is welded at both ends
DN250 flange, 90 ° of elbows after welding are connected with flowmeter (included DN250 flange) by form of flanges, choose one section with
The national standard DN300 flange of pressure-bearing 1.6Mpa is welded at the DN300 seamless steel pipe 4m of conduit group same material, steel pipe both ends, and correspondence connects
The flowmeter length of good elbow opens two weld bonds on the tube wall of steel pipe plane of symmetry both ends respectively, then welds this four weld bonds respectively
One end band flange is connected, length is the DN250 seamless steel pipe of 0.4m, then two flowmeters for connecting elbow are connected by flange
The mode of connecing is connected to steel pipe two sides, forms flowmeter short unit.
3. dashpot: such as Fig. 3, the rectangular box being welded by several groups of thick steel plates, steel plate thickness is in 8mm thickness, rectangular box
1 meter of long seamless steel pipe is welded in body front end middle and lower part, and seamless steel pipe size usually selects wall thickness referring again to drilling team's original pipe size
For 12mm；Outer diameter is the seamless steel pipe of 325mm, in the flange of steel pipe front end welding DN300 national standard PN1.6Mpa；Rear end bottom bottom
Face is welded with rectangle thick liquid discharge mouth (size requirements guarantee that cabinet can normally be discharged with the mud of sand mud).
(2), 1. pneumatic knife gate valve: such as Fig. 2, PZH673-10P pneumatic knife gate valve (the main pneumatic knife that bore is DN300 is chosen
Gate valve) 1, choose the pneumatic knife gate valve 12 of PZH673-10P totally 4 that bore is DN250.
2. the control cabinet for placing control device: control cabinet is such as schemed for pneumatic control intermediary and signal transmission intermediary
4, control cabinet is stainless steel material Flameproof box, is fixed with line bank, relay, solenoid valve (pneumatic knife gate valve), pneumatic two in case
Connection part, gas pipeline, gas pipeline are inserted fastly.Cabinet left side wall and lower wall are equipped with explosion-proof BULKHEAD UNION, explosion-proof aviation plug respectively.It connects
Line row, relay, solenoid valve terminals signal wire connect by correct connection；(it is customary in the art that relay, which controls solenoid valve,
Means, those skilled in the art can be known implementation method by public channel, not add to repeat herein.) pneumatic bigeminy part, gas pipeline
Fast slotting, BULKHEAD UNION is connected with gas pipeline；UPS in compound logging room takes 220V burning voltage, exports DC by Switching Power Supply
24V power supply supplies control cabinet by power supply line, and control cabinet gives two by case internal wiring row's two groups of DC 24V power supplys of output respectively
Flowmeter power supply；485 signals of flowmeter output are connected to control cabinet aviation plug by signal wire, then pass through connection signal line
It is connected to indoor 485 turn of 232 serial port module, module is connected to serial ports of computers, to show flow parameter；The explosion-proof threading of lower box connects
Head connects live gas source (by gas source interface entrance), and 3 groups of explosion-proof BULKHEAD UNIONs of cabinet left side wall connect overflow leakage monitoring device pipe
On the pneumatic knife gate valve of line, specific connection is that connects a direct-through valve, in addition connects 1 road valve of flow and 2 tunnel of flow respectively for two groups
Valve.
2, inlet flow rate monitoring device.
Inlet flow rate monitoring device: such as Fig. 1, the electromagnetic flowmeter of faraday's principle is chosen, size will cooperate drilling mud
Water-line size selection is pumped, the flowmeter that bore is 250mm is chosen, when drilling mud is installed, electromagnetic flowmeter is connected and is pacified
On slush pump water-line (drilling well has several pumps just to install several electromagnetic flowmeters).
Practical operation.
As shown in Fig. 2, flowmeter short unit is connected according to embodiment step, then will be before and after flowmeter short unit
It is connected with conduit with flange, dashpot straight pipe flange (such as Fig. 3) and flow is then connect into flange (such as Fig. 2) phase on rear side of short unit
Even, then control cabinet is fixed on dashpot side (such as Fig. 1), then connects operated pneumatic valve gas source interface and control cabinet output gas source
Mouth is corresponded and is connected, then mass flowmenter is connected with control cabinet by signal wire；The device entirely connected is replaced and is bored
Well delivery channel is mounted between well head and reciprocating sieve.
As shown in Figure 1, electromagnetic flowmeter is mounted on pump water-line；By flowmeter and control cabinet by signal wire,
Cable (cable interface) is connected to PC computer；Computer controls operated pneumatic valve switch；By monitoring method, automatic monitoring is overflow
Stream, leakage.Formally using needing to carry out adjustment inspection program before flow monitoring device monitoring, the purpose of the operation is to ensure that Coriolis
The measured value of force flow meter is correct, while measuring the maximum stream flow by sensor, to avoid well head is overflowed.(note:
During test, need always someone rig floor check well head slurry liquid face, be slowly increased discharge capacity to wellhead slurry liquid level and rise to
It please be give a warning when 0.5 meter open away from drainage tube).
As shown in figure 5, adjustment inspection operates.
1-stops slush pump.
2-open valve bypass operated pneumatic valve (i.e. coriolis force flowmeter road) in flow monitoring device pipeline.
3-close straight-through operated pneumatic valve.
4-turn on pumps, increase discharge capacity to 10 L/s, while waiting the stability that diversion channel mud is returned out in vibrating screen room.
Once 5-well loggings confirm mud displacement, discharge capacity is continued growing to 20 L/s, while observing and returning out in vibrating screen room
The stability of diversion channel mud.
Once 6-well loggings confirm mud displacement, discharge capacity is continued growing to 30 L/s, while observing and returning out in vibrating screen room
The stability of diversion channel mud.
Once 7-well loggings confirm mud displacement, be slowly increased discharge capacity to 40 L/s, at the same observe wellhead slurry liquid level and
The stability of diversion channel mud is returned out in vibrating screen room.
Once 8-well loggings confirm mud displacement, be slowly increased discharge capacity to 50 L/s, at the same observe wellhead slurry liquid level and
The stability of diversion channel mud is returned out in vibrating screen room.
Once 9-well loggings confirm mud displacement, be slowly increased discharge capacity to 60 L/s, at the same observe wellhead slurry liquid level and
The stability of diversion channel mud is returned out in vibrating screen room.
Once 11-well loggings confirm mud displacement, discharge capacity is slowly increased to wellhead slurry liquid level at 1.5 meters of platform turntable surface of drilling,
The maximum pump discharge that this namely FLOWMONITOR allows.
Once 12-well loggings confirmed maximum pump discharge, discharge capacity is just dropped into 55 L/s, waits vibrating screen Fang Nei return of drilling mud
Stablize discharge.
Once 13-well loggings confirm discharge capacity, discharge capacity is just dropped into 45 L/s, vibrating screen Fang Nei return of drilling mud is waited to stablize row
Out.
Once 14-well loggings confirm discharge capacity, discharge capacity is just dropped into 35 L/s, vibrating screen Fang Nei return of drilling mud is waited to stablize row
Out.
Once 15-well loggings confirm discharge capacity, discharge capacity is just dropped into 25 L/s, vibrating screen Fang Nei return of drilling mud is waited to stablize row
Out.
Once 16-well loggings confirm discharge capacity, discharge capacity is just dropped into 15 L/s, vibrating screen Fang Nei return of drilling mud is waited to stablize row
Out.
Once 18-well loggings confirm discharge capacity, stop slush pump.
Output zero is returned in 19-turn on pumps, setting discharge capacity to drilling well discharge capacity, termination of pumping after discharge capacity is stablized, waiting.
20-turn on pumps, setting discharge capacity to drilling well discharge capacity, after discharge capacity is stablized, simulation well kick is pumped into a little mud and manages to the place of returning
Line.
21-open straight-through pipeline Pneumatic gate valve.
Note: can first be measured using single channel flowmeter when low discharge capacity recycles, with the rising of discharge capacity, once wellhead slurry liquid level
It rises to and (can determine that single channel flowmeter can survey maximum pump discharge in this way) when 0.5 meter open away from drainage tube, open another way flowmeter,
Take the mode of two-flow drive test amount.
A kind of overflow leakage monitoring method, comprising: to outlet instantaneous flow monitoring, accumulative exit volume flow rate calculation, enter
The monitoring of mouth instantaneous flow, accumulative inlet flow rate calculate, and early warning value calculates and early warning triggers.
Step 1, monitoring outlet instantaneous flow simultaneously calculate accumulative exit volume flow.
The instantaneous mud amount returned out by flowmeter monitoring outlet, obtains output instantaneous mass flow Mflowout, density
Mdoa and temperature parameter；Instantaneous output volume flow Vflowout is calculated；When using two coriolis force flowmeters, (section
Family name's force flow meter is high to gas-liquid-solid three phase flow measurement accuracy, is applicable not only to water-base drilling fluid, measures oil base drilling fluid same
Sample possesses high-precision), instantaneous output volume flow is the sum of the instantaneous volume flow rate of two flowmeters.
Vflowout=Mflowout/Mdoa.
Accumulative exit volume flow G Vflowout is calculated in real time, is added up exit volume flow and is equal to currently accumulative outlet body
Product flow GtThe sum of Vflowout and instantaneous output volume flow.
G Vflowout=Gt Vflowout+ Vflowout。
Step 2, monitoring entrance instantaneous flow simultaneously calculate accumulative inlet volumetric flow.
By the electromagnetic flowmeter being mounted on slush pump water-line, (high to liquid fixed double phase flow measurement accuracy, price is low
In mass flowmenter), real-time monitoring is pumped into instantaneous mud amount, and obtains instantaneous inlet volumetric flow Vflowin, when drilling well has three
When platform slush pump, inlet volumetric flow is the sum of the electromagnetic flowmeter instantaneous flow of three slush pumps installation.
Accumulative inlet volumetric flow G Vflowin is equal to currently accumulative exit volume flow GtVflowin and instantaneous entrance
The sum of volume flow.
G Vflowin= Vflowin+ Gt Vflowin。
Step 3, early warning value are calculated to be triggered with early warning.
During early warning value calculates.
Early warning value uses the difference RTFD of entry and exit instantaneous volume flow rate: being specifically calculated as.
RTFD= Vflowout-Vflowin。
Difference in flow early warning thresholding is set, as difference in flow RTFD>0.5L/s or RTFD<0.5L/s, starts to calculate overflow/leakage
The mud volume change CTV of mistake and lasting pre-warning time Time.
Start to record in real time and continues pre-warning time Time.
Accumulative exit volume flow G Vflowout and accumulative inlet volumetric flow G Vflowin are done into difference and calculate to obtain base
Plinth difference BD.
Start to calculate overflow/leakage mud volume variable quantity CTV.
CTV=G Vflowout-G Vflowin-BD。
Start to calculate overflow/leakage speed speed rate.
Speed rate= CTV/Time
Early warning triggering: by flow difference RTFD, overflow/leakage mud volume CTV and lasting pre-warning time
Tri- parameters of Time are judged.
If: the L/s of -0.5 L/s < RTFD < 0.5 and the m3 of -0.2 m3 < CTV < 0.2 and the s of Time < 180, without alarm
It is excited.
If: the L/s of the RTFD>0.5 or L/s of RTFD<-0.5; CTV<0.2 m3; Time<180 s；Then RTFD alarm is swashed
Hair.
If: the L/s of RTFD > 0.5; CTV>0.2 m3;Then RTFD, CTV alarm are excited the s of Time < 180.
If: the L/s of RTFD < -0.5; CTV<-0.2 m3;Then RTFD, CTV alarm are excited the s of Time < 180.
If: the L/s of RTFD > 0.5; CTV<0.2 m3;Then RTFD, Time alarm are excited the s of Time > 180.
If: the L/s of RTFD < -0.5; CTV<0.2 m3;Then RTFD, Time alarm are excited the s of Time > 180.
If the L/s of RTFD > 0.5; CTV<0.2 m3;Then RTFD, CTV, Time alarm are excited the s of Time > 180.
If the L/s of RTFD < -0.5; CTV<-0.2 m3;Then RTFD, CTV, Time alarm are excited Time > 180s.
It is understood that being merely to illustrate the utility model above with respect to the specific descriptions of the utility model and not being
It is limited to technical solution described in the utility model embodiment, those skilled in the art should understand that, it still can be with
It modifies to the utility model or equivalent replacement, to reach identical technical effect；Needs are used as long as meeting, all in this reality
Within novel protection scope.
Claims (6)
1. a kind of overflow leakage monitoring device, which is characterized in that including drilling well rate of discharge monitoring unit and drilling well inlet flow rate
Monitoring unit；
The inlet flow rate monitoring unit includes electromagnetic flowmeter, and the electromagnetic flowmeter is for detecting stream in drilling well water-line
Amount；
The rate of discharge monitoring unit includes flowmeter short unit and dashpot；
The flowmeter short unit include supervisor, respectively with the supervisor left branch pipe and right branch pipe that are connected, and both ends of left branch pipe
It is connected respectively with supervisor, the both ends of right branch pipe are connected with supervisor respectively；A section is each provided on the left branch pipe, right branch pipe
Family name's force flow meter is provided with main pneumatic knife gate valve on the supervisor；One end of the supervisor of flowmeter short unit and dashpot are logical
It crosses flange to be connected, the other end of flowmeter short unit is drained below drilling platforms, and with well head by wire rope hanging
Pipe is connected by hose, and is sealed with metal clamps clamping；The dashpot is arranged on the reciprocating sieve dashpot of drilling well.
2. a kind of overflow leakage monitoring device according to claim 1, it is characterised in that: the position of left branch pipe and right branch pipe
It sets relatively, Zuo Zhiguan is distributed in supervisor side, and right branch pipe is distributed in the supervisor other side；The both ends and supervisor junction of left branch pipe
It is each provided with a pneumatic knife gate valve, right branch pipe both ends and supervisor junction are each provided with a pneumatic knife gate valve.
3. a kind of overflow leakage monitoring device according to claim 2, it is characterised in that: the left branch pipe, right branch pipe
Shape is identical, is in " Contraband " shape, and two " Contraband " shape structures are opposite and set, are connected with supervisor, formed " in " shape structure.
4. a kind of overflow leakage monitoring device according to claim 1, it is characterised in that: the dashpot is rectangular box
Body, rectangular box front end middle and lower part are provided with seamless steel pipe interface, for connecting supervisor；Rectangular box rear end bottom surface is provided with row
Starch mouth or discharge pipe.
5. a kind of overflow leakage monitoring device according to claim 4, it is characterised in that: the section of thick liquid discharge mouth and discharge pipe
The size of rounded, rectangle or triangle, thick liquid discharge mouth and discharge pipe can guarantee that cabinet can normally be discharged with the mud of sand mud.
6. a kind of overflow leakage monitoring device according to claim 1, it is characterised in that: coriolis force flowmeter and electromagnetic current
Meter passes through RS485 RS 232 serial ports conversion module respectively and is connected with PC machine serial ports, and pneumatic knife gate valve passes through gas pipeline and gas source
It is connected, pneumatic bigeminy part and solenoid valve is additionally provided on the gas pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821943532.9U CN209163759U (en) | 2018-11-23 | 2018-11-23 | A kind of overflow leakage monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821943532.9U CN209163759U (en) | 2018-11-23 | 2018-11-23 | A kind of overflow leakage monitoring device |
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| CN209163759U true CN209163759U (en) | 2019-07-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751045A (en) * | 2018-11-23 | 2019-05-14 | 中国石油集团长城钻探工程有限公司录井公司 | A kind of overflow leakage monitoring method and device |
-
2018
- 2018-11-23 CN CN201821943532.9U patent/CN209163759U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751045A (en) * | 2018-11-23 | 2019-05-14 | 中国石油集团长城钻探工程有限公司录井公司 | A kind of overflow leakage monitoring method and device |
| CN109751045B (en) * | 2018-11-23 | 2023-09-26 | 中国石油天然气集团有限公司 | Overflow lost circulation monitoring method and device |
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Effective date of registration: 20201023 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: China National Petroleum Corporation Great Wall Drilling Engineering Co.,Ltd. Address before: 124010 No. 77, oil street, Xinglongtai District, Liaoning, Panjin Patentee before: LOGGING COMPANY, CNPC GREATWALL DRILLING Co. |