CN102121357A - Drilling fluid return flow measuring method and measuring device thereof - Google Patents
Drilling fluid return flow measuring method and measuring device thereof Download PDFInfo
- Publication number
- CN102121357A CN102121357A CN2011100072078A CN201110007207A CN102121357A CN 102121357 A CN102121357 A CN 102121357A CN 2011100072078 A CN2011100072078 A CN 2011100072078A CN 201110007207 A CN201110007207 A CN 201110007207A CN 102121357 A CN102121357 A CN 102121357A
- Authority
- CN
- China
- Prior art keywords
- drilling fluid
- liquid level
- rectangular channel
- auxiliary variable
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The invention relates to a drilling fluid return flow measuring method and a measuring device thereof. The method comprises the following steps: drilling fluid return flow is obtained by detecting the fluid surface height in a rectangular groove in real time; an optical liquid level sensor is arranged on the 20-30cm position at the upper part in the rectangular groove; the optical liquid level sensor measures the wet periphery liquid surface height in the rectangular groove in real time, and outputs an analog auxiliary variable signal to a signal conditioning and preprocessing device; the signal conditioning and preprocessing device preprocesses the signal and outputs a digital auxiliary variable signal; a data collection unit collects the digital auxiliary variable signal in real time, and outputs the auxiliary variable data to a client computer; and a soft measurement system of the client computer calculates a Q value of output flow of a drilling fluid, and determines whether an acousto-optic alarm device is started or not according to the Q value. The device has the advantages of early alarm time and high detection accuracy, and can give enough time for on-site drilling staff to close a well, so that a blowout accident can be effectively prevented.
Description
One, technical field:
What the present invention relates to is to measure the technology that outflow is returned in outlet in drilling well in the detection range with boring, and what be specifically related to is that a kind of drilling fluid returns outflow measuring method and measurement mechanism thereof.
Two, background technology:
If strata pressure the phenomenon that formation fluid is invaded well will occur greater than drilling liquid pressure in the well in the petroleum gas resource drilling process, be called overflow, will cause blowout even out of hand if deal with improperly, cause pernicious security incident.The key of pre-well blowout preventing and blowout out of control is exactly in time to find overflow, and the device of coherent detection overflow is made early warning fast and accurately, finds overflow more early, and the difficulty of handling overflow is also more little, and the probability that blowout takes place is just low more.
With overflow detect relevant well head blowout prevention equipment usually by preventer (blowout preventer), horn mouth, horn mouth window, drilling fluid returns out pipeline (bleed off pipe) and the drilling fluid pot formation, wherein drilling fluid returns out the pipeline profile does not have the relevant industries standard, to return out pipeline type relatively freer so drilling crew selects for use, difference is very big, can be that common pipe also can use rectangular channel.Compare pipe because of the rectangular channel sand removal easily, to observe drilling fluid convenient, so use more generally, some drilling team's pipe and rectangular channel are used in combination.The circulation of drilling fluid mode mainly is to adopt the open type circulation, and promptly drilling fluid is exposed in the atmosphere after going out well, flows into drilling fluid pot through returning out pipeline.Part excessive risk well is introduced external controlled pressure drilling system (MPD) and has been realized the closed circulation drilling fluid, but the operating cost costliness.
1. existing overflow detection method
The overflow detection method of situ of drilling well widespread usage has two kinds, is respectively drilling fluid pot liquid-level detecting method and difference in flow method.
(1) drilling fluid pot liquid-level detecting method
This overflow detection method is used the most general at present.This method changes by liquid level in observation or the measurement drilling fluid pot estimates the total amount of liquid increase and decrease, has judged whether the formation fluid intrusion.But this method has following problem, has a strong impact on certainty of measurement and overflow pre-warning time.
Liquid level changes not obvious during 1. little spillway discharge
For ensureing the drilling fluid consumption of different drilling phases, usually the drilling fluid pot volume of drilling team is bigger, certain volume safe clearance is arranged, but this also detects the problem of having brought to overflow, because of the drilling fluid pot floor space bigger, the less overflow initial stage drilling fluid liquid level of spillway discharge changes and is not obvious, so be difficult to early detection overflow and early warning.
2. the agitator rotation causes liquid fluctuating in the drilling fluid pot
For guaranteeing property of drilling fluid, prevent precipitation, drilling fluid needs regularly to stir in the pond, some heavy duty service standard is clearly stipulated 24 hours uninterrupted stirrings, this has just caused, and the liquid level instability fluctuates up and down in the drilling fluid pot, causes the apparatus measures error, and the false alarm situation is many.
3. the volume build-up effect causes presignal delay
Connect for returning out pipeline between well head and the drilling fluid pot, about 4～the 10m of length, when overflow takes place, the borehole fluid flow begins to increase, and returns out pipeline to drilling fluid pot and accumulates but need flow through, and this needs certain hour, that is to say, begin can not send the overflow early warning during the drilling fluid pot dilatation reaches high alarm setting from overflow, the overflow pre-warning time is postponed greatly, does not have the effect of early warning.
(2) difference in flow method
This method is measured or is calculated to pump in the well and judges whether to occur overflow and leakage with the drilling well liquid measure difference that recycles well, and difference takes place for overflow just is described, difference takes place for negative explanation leakage, and accuracy of detection is than drilling fluid pot liquid level detection method height.Pump into drilling fluid displacement in the well because of the strokes per minute metering is easy to, obtain easily, and mud flow rate measurements that recycles well mainly contains the popularization that three problems existence have limited this method so go into well drilling well liquid measure.
1. drilling fluid returns out pipeline and is necessary for pipe
Improve the accuracy of detection of overflow leakage at present in some excessive risk well application traffic difference methods, flow meter is generally selected electromagnetic flowmeter or coriolis mass flowmeters for use, these flow meters are that flange is connected with the connected mode of pipeline, this just requires drilling fluid to return out pipeline and is necessary for pipe, as previously mentioned, be not drilling team's optimal selection because of returning out pipeline sand removal problem pipe.
2. drilling fluid must be full of pipe and be formed with the pressure pipe road
Even drilling fluid returns out pipeline and uses pipe, drilling fluid must be full of whole pipeline in the pipe, have certain pressure, in the pipe free surface can not be arranged in other words, this is determined by electromagnetic flowmeter or coriolis mass flowmeters operating principle, but the drilling fluid displacement difference of using owing to the different stages of creeping in whole drilling process is huge, so can't guarantee that drilling fluid is full of pipe all the time in the whole drilling process.
3. the drilling fluid detecting instrument bag mud problem in the process that flows
One of composition of drilling fluid is active solid phase, comprise clay for preparing mud and organobentonite that swell soil, stratum enter, and being flange with the coriolis mass flowmeters and the connected mode of pipe, electromagnetic flowmeter is connected, drilling fluid directly contacts with instrument, on instrument, produce attachment phenomenon in these solid phase flow process inevitably, not only have a strong impact on and measure even damage instrument.
More than two kinds of methods that detect overflows all have certain defective, a large amount of blowout cases in nearly ten years have proved also that existing overflow detection means need be improved and are perfect that the early detection overflow is reduced to the risk that blowout takes place minimum.
2. the drilling fluid that is suitable for situ of drilling well returns outflow and measures difficult point
The reason that can not promote at conventional drilling equipment according to the difference in flow method overflow detection technique of discussing previously as can be known, if can return out to measure in real time in the pipeline at drilling team's rectangular channel drilling fluid commonly used and return outflow, just can obtain more accurate go into well and go out the mud flow rate of well poor, thereby judge whether to take place overflow, pre-warning time will shift to an earlier date significantly, return outflow and will have following technical problem not solve all the time but measure drilling fluid in rectangular channel.
(1) free surface flow stability problem
Drilling fluid directly contacts with air in the pipeline because of rectangular channel returns out, this has just formed free surface, having free surface flows very big unstability is arranged, this has brought difficulty for conventional flow transmitter measurement, as previously mentioned, electromagnetic flowmeter or coriolis mass flowmeters all can't be measured the flow that has free surface.
(2) drilling fluid returns out the unstability of wetted perimeter section area in the pipeline
The rectangular channel that drilling team uses returns out length of pipeline very big flexibility, concrete length depends on the distance between horn mouth and the vibrosieve, drilling liquid flow becomes bottom horizontal flow sheet by perpendicular flow when horn mouth is windowed, it is very unstable to flow near horn mouth is windowed, and near the drilling fluid wetted perimeter section area horn mouth is windowed is extremely unstable.Because action of gravity, the wetted perimeter section area will diminish drilling liquid flow, that is to say that the height of the wetting rectangular channel of drilling fluid changes along journey when returning out end of line, and this has also brought huge difficulty to flow measurement.
(3) complexity of wetted perimeter cross section velocity flow profile
Drilling fluid wetted perimeter section area has the instable while in the rectangular channel, drilling fluid particle velocity flow profile also has great complexity on the wetted perimeter cross section arbitrarily, the local flow velocity of pressing close to wall in the rectangular channel is lower, the groove center flow velocity is higher, the free surface place because of with the air effect flow velocity a little less than below the liquid level, although in a lot of documents associated flow rate distribution Mathematical Modeling is arranged, but certain error is arranged all, this that is to say, the velocity flow profile of expecting each flow section is difficult to accomplish that the measurement of the velocity flow profile of each fluid particle also is the difficult point of restriction rectangular channel flow measurement in the section.
(4) influence of drilling fluid rheology
Drilling fluid rheology has very significant effects to the flow section velocity flow profile, and factors such as temperature, rectangular channel wall roughness all can influence drilling fluid rheology, and this just needs measuring process to do corresponding the correction.
Three, summary of the invention:
An object of the present invention is to provide a kind of drilling fluid and return the outflow measuring method, another object of the present invention provides this drilling fluid and returns the outflow measurement mechanism, and it is used to solve existing drilling fluid and returns outflow and measure inaccurate problem.
The technical solution adopted for the present invention to solve the technical problems is: this drilling fluid returns the outflow measuring method and obtains drilling fluid by liquid level in the real-time detection rectangular channel and return outflow, and is specific as follows:
Step 1, Optical Liquid Level Sensors (or profile scan sensor) is installed in about 20～30cm place, top in the rectangular channel;
Sensor is measured wetted perimeter cross section liquid level in the rectangular channel in real time in step 2, the step 1, and output simulation auxiliary variable signal is to signal condition and pretreatment unit;
The soft measuring system of step 5, client computer calculates drilling fluids outlet flow Q value, and judges whether to start acoustic-optic alarm according to the Q value.
In the such scheme in the rectangular channel between best measurement zone, with with the horn mouth junction of windowing be starting point, get and be measuring point between (1/5～1/2) L, wherein L is a rectangular channel length, guarantee that like this sensor measuring point is equal uniform flow, has effectively avoided the flow section area change to influence certainty of measurement.
Measure the height z of the different liquid level point in certain wetted perimeter cross section in the rectangular channel in the such scheme, simulate the liquid level contour curve, can be expressed as z=z (x, y), the x span is between 0～L, the y span is between 0～B, B is a groove width.Can be expressed as z=z (a for certain wetted perimeter cross section of determining, y), a is a constant, soft-sensing model match measuring point wetted perimeter cross section velocity flow profile can be expressed as u=u (a, y, z), to wetted perimeter cross section infinitesimal flow velocity with liquid level curve z=z (a, y) and the cross section that surrounded of wetted perimeter carry out area and divide computing to obtain drilling fluid to return outflow Q
A is a section area.
Realize that the measurement mechanism of above-mentioned measuring method is made up of Optical Liquid Level Sensors, rectangular channel, signal condition and pretreatment unit, digital data transmission bus, data acquisition unit, client computer and soft-sensing model software, acoustic-optic alarm, Optical Liquid Level Sensors is installed on the sensor stand, and sensor stand is installed on the frame sliding track.
Beneficial effect:
1, the present invention need not change the well site existing weaponry and equipment, the rectangular channel drilling fluid that drilling crew generally uses returns out in the pipeline just can measure flow in real time, just can realize that in the conventional drilling equipment overflow of difference in flow method detects, comparing pre-warning time with drilling fluid pot liquid level detection method shifts to an earlier date significantly, accuracy of detection significantly improves, can give more plenty of time closing well of situ of drilling well staff, effectively prevent gas blowout accident and take place, also can monitor leakage when this invention detects overflow in real time and whether take place.
2, the present invention creatively returns outflow with rectangular channel liquid level and drilling fluid and combines, just can judge whether to take place overflow exactly by the variation that detects the rectangular channel liquid level, be a great technology exploration breaking through present overflow earlier detection bottleneck.
3, the Optical Liquid Level Sensors selected for use of the present invention is measured and is measured certain constant cross-section liquid level in the rectangular channel, does not contact with drilling fluid, avoids that solid phase influences certainty of measurement in the drilling fluid.
4, the Mathematical Modeling that returns in the computer soft-sensing model of the present invention has been considered the influence to wetted perimeter cross section velocity flow profile such as temperature, drilling fluid rheology, and the flow velocity error is less relatively.
5, the invention solves the difference in flow method and measure flow and need drilling fluid to return out pipeline to be necessary for pipe, and be full of the restricted problem that pipe is formed with the pressure pipe road.
Four, description of drawings:
Fig. 1 the present invention measures FB(flow block);
Fig. 2 measurement mechanism of the present invention is arranged schematic diagram;
Fig. 3 rectangular channel coordinate system schematic diagram.
1 rectangular channel, 2 horn mouths window drilling fluid liquid level 4 sensor stand 5 Optical Liquid Level Sensors, 6 signal conditions and pretreatment unit 7 data acquisition units 8 client computers 9 sound and light alarm lamps 10 horn mouths 11 annular preventers 12 rig floor planes 13 kelly bars in 3 rectangular channels
Five, the specific embodiment:
The present invention is described further below in conjunction with accompanying drawing:
Fig. 2 arranges schematic diagram for measurement mechanism of the present invention, as shown in the figure, this drilling fluid returns the outflow measurement mechanism by high-precision optical liquid level sensor 5, rectangular channel 1, signal condition and pretreatment unit 6, the digital data transmission bus, data acquisition unit 7, client computer 8 and soft-sensing model software, acoustic-optic alarm is formed, at the on-the-spot drilling fluid open type of oil drilling circulation time, returning the outflow measurement mostly is horn mouth 10 and annular preventer 11 is set at the well head place, horn mouth 10 and annular preventer 11 are below rig floor plane 12, kelly bar 13 passes from horn mouth 10, rectangular channel 1 just drilling fluid returns out the rectangular channel pipeline, drilling fluid liquid level 3 is free surfaces in the rectangular channel, and rectangular channel 1 and horn mouth are windowed and 2 communicated.The present invention need not change the well site existing weaponry and equipment, high-precision optical liquid level sensor 5 is erected on the sensor stand 4 at about 20～30cm place, rectangular channel 1 top, measures in order to avoid drilling fluid advances to spatter influence, and sensor stand 4 is installed on the frame sliding track; Signal condition and pretreatment unit 6, digital data transmission bus, data acquisition unit 7, client computer 8 are connected according to known technology, and acoustic-optic alarm is a sound and light alarm lamp 9.
Fig. 1 the present invention measures FB(flow block), as shown in the figure, it is that high-precision optical liquid level sensor 5 is measured auxiliary variables such as liquid level in real time that this drilling fluid returns the outflow measuring method, output simulation auxiliary variable signal is to signal condition and pretreatment unit 6, to simulation auxiliary variable signal amplify, completely cut off, preliminary treatment such as filtering, computing, after installing 6, export digital auxiliary variable signal.Data acquisition unit 7 connects by bus gathers digital auxiliary variable signal in real time, and imports the auxiliary variable data to client computer 8 by the client computer interface.The auxiliary variable data calculate drilling fluids outlet flow Q value through the soft measuring system of client computer 8, promptly measure the height z of the different liquid level point in certain wetted perimeter cross section in the rectangular channel, simulate the liquid level contour curve, can be expressed as z=z (x, y), the x span is between 0～L, and the y span is between 0～B, and B is a groove width.Can be expressed as z=z (a for certain wetted perimeter cross section of determining, y), a is a constant, soft-sensing model match measuring point wetted perimeter cross section velocity flow profile can be expressed as u=u (a, y, z), to wetted perimeter cross section infinitesimal flow velocity with liquid level curve z=z (a, y) and the cross section that surrounded of wetted perimeter carry out area and divide computing to obtain drilling fluid to return outflow Q
A is a section area, and wherein coordinate origin is positioned at the rectangular channel lower left corner, consults shown in Figure 3.Whether last client computer reaches high alarm setting according to the Q value is carried out whether start acoustic-optic alarm 9.
Claims (4)
1. a drilling fluid returns the outflow measuring method, it is characterized in that: this drilling fluid returns the outflow measuring method and obtains drilling fluid by liquid level in the real-time detection rectangular channel and return outflow, and is specific as follows:
Step 1, Optical Liquid Level Sensors or profile scan sensor are installed in about 20～30cm place, top in the rectangular channel;
Sensor is measured wetted perimeter cross section liquid level in the rectangular channel in real time in step 2, the step 1, and output simulation auxiliary variable signal is to signal condition and pretreatment unit;
Step 3, signal condition and pretreatment unit with the step 2 Signal Pretreatment after output digital auxiliary variable signal;
Step 4, data acquisition unit are gathered digital auxiliary variable signal in real time, and input auxiliary variable data are to client computer;
The soft measuring system of step 5, client computer calculates drilling fluids outlet flow Q value, and judges whether to start acoustic-optic alarm according to the Q value.
2. drilling fluid according to claim 1 returns the outflow measuring method, it is characterized in that: between the measurement zone in the described rectangular channel, with the horn mouth junction of windowing be starting point, get and be measuring point between (1/5～1/2) L, wherein L is a rectangular channel length.
3. drilling fluid according to claim 2 returns the outflow measuring method, it is characterized in that: the height z of the different liquid level point in certain wetted perimeter cross section in the described measurement rectangular channel, simulate the liquid level contour curve, can be expressed as z=z (x, y), the x span is between 0～L, and the y span is between 0～B, and B is a groove width; Can be expressed as z=z (a for certain wetted perimeter cross section of determining, y), a is a constant, soft-sensing model match measuring point wetted perimeter cross section velocity flow profile can be expressed as u=u (a, y, z), to wetted perimeter cross section infinitesimal flow velocity with liquid level curve z=z (a, y) and the cross section that surrounded of wetted perimeter carry out area and divide computing to obtain drilling fluid to return outflow Q
A is a section area.
4. the described drilling fluid of claim 1 returns the measurement mechanism that the outflow measuring method is used, it is characterized in that: it is made up of Optical Liquid Level Sensors (5) or profile scan sensor, rectangular channel (1), signal condition and pretreatment unit (6), digital data transmission bus, data acquisition unit (7), client computer (8) and soft-sensing model software, acoustic-optic alarm, Optical Liquid Level Sensors (5) is installed on the sensor stand (4), and sensor stand (4) is installed on the frame sliding track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100072078A CN102121357A (en) | 2011-01-13 | 2011-01-13 | Drilling fluid return flow measuring method and measuring device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100072078A CN102121357A (en) | 2011-01-13 | 2011-01-13 | Drilling fluid return flow measuring method and measuring device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102121357A true CN102121357A (en) | 2011-07-13 |
Family
ID=44250005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100072078A Pending CN102121357A (en) | 2011-01-13 | 2011-01-13 | Drilling fluid return flow measuring method and measuring device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102121357A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704874A (en) * | 2012-05-18 | 2012-10-03 | 西南石油大学 | Device and method for detecting drilling fluid return flow |
| CN102704875A (en) * | 2012-06-01 | 2012-10-03 | 湖北江汉石油仪器仪表股份有限公司 | Novel non-contact mud outlet flow instrument |
| CN104131809A (en) * | 2014-07-14 | 2014-11-05 | 中南大学 | Novel well kick warning device and method |
| CN105114019A (en) * | 2015-05-29 | 2015-12-02 | 东北石油大学 | Double-arc curvilinear drilling fluid outlet flow measuring device and method |
| CN105952436A (en) * | 2016-04-27 | 2016-09-21 | 西南石油大学 | Real time monitor method for early stage well kick overflow based on transient flow |
| CN106919795A (en) * | 2017-02-23 | 2017-07-04 | 中国海洋石油总公司 | A kind of deep water gas well blowout stream method for determination of amount |
| CN109538142A (en) * | 2018-12-31 | 2019-03-29 | 中石化石油工程技术服务有限公司 | One kind being used for indoor mud flow rate detection device and its detection method |
| CN109538143A (en) * | 2018-12-31 | 2019-03-29 | 中石化石油工程技术服务有限公司 | A kind of drilling fluids outlet flow quantitative testing device and drilling liquid level measurement method |
| CN110439488A (en) * | 2019-08-30 | 2019-11-12 | 中国石油集团川庆钻探工程有限公司 | Solid-liquid flow measuring system and measurement method in a kind of drilling well manifold |
| CN111456725A (en) * | 2020-04-30 | 2020-07-28 | 中国石油天然气集团有限公司 | Experimental device for be used for simulating drilling-out grout |
| CN112145170A (en) * | 2020-09-29 | 2020-12-29 | 中海石油(中国)有限公司 | Oil-gas well blowout experiment simulation device and operation method |
| CN112412437A (en) * | 2020-11-18 | 2021-02-26 | 中国石油天然气集团有限公司 | Wellhead return flow measuring method |
| CN112901095A (en) * | 2021-04-15 | 2021-06-04 | 上海神开石油科技有限公司 | Online measuring device and method for non-full pipe of drilling outlet flow |
| CN116733396A (en) * | 2023-08-11 | 2023-09-12 | 四川奥达测控装置有限公司 | Drilling outlet flow monitoring and well control overflow and leakage early warning system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4754641A (en) * | 1987-02-10 | 1988-07-05 | Schlumberger Technology Corporation | Method and apparatus for measurement of fluid flow in a drilling rig return line |
| US5063776A (en) * | 1989-12-14 | 1991-11-12 | Anadrill, Inc. | Method and system for measurement of fluid flow in a drilling rig return line |
| CN1970990A (en) * | 2006-11-29 | 2007-05-30 | 中国石油大学(北京) | Method for measuring return flow in petroleum drilling and device therefor |
| CN1979099A (en) * | 2005-12-06 | 2007-06-13 | 上海中油石油仪器制造有限公司 | Method for measuring high-pressure buffering pot mud-outlet-flow by open channel method |
-
2011
- 2011-01-13 CN CN2011100072078A patent/CN102121357A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4754641A (en) * | 1987-02-10 | 1988-07-05 | Schlumberger Technology Corporation | Method and apparatus for measurement of fluid flow in a drilling rig return line |
| US5063776A (en) * | 1989-12-14 | 1991-11-12 | Anadrill, Inc. | Method and system for measurement of fluid flow in a drilling rig return line |
| CN1979099A (en) * | 2005-12-06 | 2007-06-13 | 上海中油石油仪器制造有限公司 | Method for measuring high-pressure buffering pot mud-outlet-flow by open channel method |
| CN1970990A (en) * | 2006-11-29 | 2007-05-30 | 中国石油大学(北京) | Method for measuring return flow in petroleum drilling and device therefor |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704874A (en) * | 2012-05-18 | 2012-10-03 | 西南石油大学 | Device and method for detecting drilling fluid return flow |
| CN102704875A (en) * | 2012-06-01 | 2012-10-03 | 湖北江汉石油仪器仪表股份有限公司 | Novel non-contact mud outlet flow instrument |
| CN104131809A (en) * | 2014-07-14 | 2014-11-05 | 中南大学 | Novel well kick warning device and method |
| CN104131809B (en) * | 2014-07-14 | 2017-10-31 | 中南大学 | A kind of new well kick warning device and method |
| CN105114019A (en) * | 2015-05-29 | 2015-12-02 | 东北石油大学 | Double-arc curvilinear drilling fluid outlet flow measuring device and method |
| CN105952436B (en) * | 2016-04-27 | 2019-08-20 | 西南石油大学 | A method of early stage well kick overflow real-time monitoring is carried out based on instantaneous flow |
| CN105952436A (en) * | 2016-04-27 | 2016-09-21 | 西南石油大学 | Real time monitor method for early stage well kick overflow based on transient flow |
| CN106919795A (en) * | 2017-02-23 | 2017-07-04 | 中国海洋石油总公司 | A kind of deep water gas well blowout stream method for determination of amount |
| CN106919795B (en) * | 2017-02-23 | 2019-05-14 | 中国海洋石油集团有限公司 | A kind of deep water gas well blowout stream method for determination of amount |
| CN109538142A (en) * | 2018-12-31 | 2019-03-29 | 中石化石油工程技术服务有限公司 | One kind being used for indoor mud flow rate detection device and its detection method |
| CN109538143B (en) * | 2018-12-31 | 2023-10-20 | 中石化石油工程技术服务有限公司 | Drilling fluid outlet flow quantitative detection device and drilling fluid liquid level measurement method |
| CN109538143A (en) * | 2018-12-31 | 2019-03-29 | 中石化石油工程技术服务有限公司 | A kind of drilling fluids outlet flow quantitative testing device and drilling liquid level measurement method |
| CN110439488B (en) * | 2019-08-30 | 2021-12-03 | 中国石油集团川庆钻探工程有限公司 | System and method for measuring flow of solid-liquid fluid in drilling manifold |
| CN110439488A (en) * | 2019-08-30 | 2019-11-12 | 中国石油集团川庆钻探工程有限公司 | Solid-liquid flow measuring system and measurement method in a kind of drilling well manifold |
| CN111456725A (en) * | 2020-04-30 | 2020-07-28 | 中国石油天然气集团有限公司 | Experimental device for be used for simulating drilling-out grout |
| CN111456725B (en) * | 2020-04-30 | 2024-01-16 | 中国石油天然气集团有限公司 | Experimental device for be used for simulating to draw and grout |
| CN112145170B (en) * | 2020-09-29 | 2023-08-15 | 中海石油(中国)有限公司 | Oil-gas well blowout experiment simulation device and operation method |
| CN112145170A (en) * | 2020-09-29 | 2020-12-29 | 中海石油(中国)有限公司 | Oil-gas well blowout experiment simulation device and operation method |
| CN112412437A (en) * | 2020-11-18 | 2021-02-26 | 中国石油天然气集团有限公司 | Wellhead return flow measuring method |
| CN112412437B (en) * | 2020-11-18 | 2023-11-17 | 中国石油天然气集团有限公司 | Wellhead return flow measuring method |
| CN112901095A (en) * | 2021-04-15 | 2021-06-04 | 上海神开石油科技有限公司 | Online measuring device and method for non-full pipe of drilling outlet flow |
| CN116733396A (en) * | 2023-08-11 | 2023-09-12 | 四川奥达测控装置有限公司 | Drilling outlet flow monitoring and well control overflow and leakage early warning system and method |
| CN116733396B (en) * | 2023-08-11 | 2023-10-31 | 四川奥达测控装置有限公司 | Drilling outlet flow monitoring and well control overflow and leakage early warning system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102121357A (en) | Drilling fluid return flow measuring method and measuring device thereof | |
| CN102288157B (en) | Method for monitoring deep settlement of foundation | |
| CN108254032A (en) | River ultrasonic wave time difference method method of calculating flux | |
| CN103529237B (en) | The measuring method of a kind of fo Sediment Group Settling speed and measurement apparatus | |
| RU2754656C1 (en) | Method and system for measuring flow rates of multiphase and/or multicomponent fluid extracted from oil and gas well | |
| CN109253765A (en) | River discharge monitors measuring system and method for calculating flux on-line | |
| CN103470202A (en) | Online integrated monitoring and warning method for overflow in drilling process of oil and gas wells | |
| CN202596620U (en) | Novel floating ball type slurry outlet flow detection meter | |
| CN104776971A (en) | Visualization experiment device for liquid and sand carrying of gas flow | |
| CN106401570A (en) | Determination method of producing water for shale gas well, determination method of accumulated liquid and liquid drainage method | |
| CN101787712B (en) | Inclination measuring device and measuring method of sunk well | |
| CN102230812B (en) | Device and method for measuring return flow of L-shaped communicating pipe drilling liquid | |
| CN202417485U (en) | Real-time monitoring system for well drilling well kick leakage | |
| CN112796725B (en) | Method and system for determining fracturing section gas production contribution rate of staged fracturing shale gas well | |
| RU2577865C1 (en) | Method of indicating investigation of wells and interwell space | |
| CN215108823U (en) | Online measuring device for non-full pipe of outlet flow of drilling well | |
| CN202596619U (en) | Rectangular tank type measuring device of drilling fluid returning flow | |
| CN101275894B (en) | Hydrocarbon resin polymer material viscosity on-line continuous detecting method | |
| CN204666329U (en) | A kind of air-flow is taken liquid and is taken sand visual experimental apparatus | |
| CN204646152U (en) | The linear drilling fluids outlet flow measurement mechanism of double arc-curve | |
| CN207499826U (en) | One kind is with brill mud flow rate monitoring device | |
| CN112901095A (en) | Online measuring device and method for non-full pipe of drilling outlet flow | |
| CN202165037U (en) | Real-time well kick/leakage detection device | |
| CN105114019A (en) | Double-arc curvilinear drilling fluid outlet flow measuring device and method | |
| CN202596618U (en) | Communicating pipe type drilling fluid return flow measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110713 |