CN106401513A - Well mouth flared short joint capable of improving measuring sensitivity of return flow rate of drilling liquid and method - Google Patents
Well mouth flared short joint capable of improving measuring sensitivity of return flow rate of drilling liquid and method Download PDFInfo
- Publication number
- CN106401513A CN106401513A CN201611129488.3A CN201611129488A CN106401513A CN 106401513 A CN106401513 A CN 106401513A CN 201611129488 A CN201611129488 A CN 201611129488A CN 106401513 A CN106401513 A CN 106401513A
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- Prior art keywords
- trapezium structure
- structure body
- baffle plate
- rubber baffle
- hydraulic circuit
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Links
- 238000005553 drilling Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000035945 sensitivity Effects 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 title claims abstract description 6
- 241000826860 Trapezium Species 0.000 claims description 63
- 239000012530 fluid Substances 0.000 claims description 31
- 238000005259 measurement Methods 0.000 claims description 27
- 239000010720 hydraulic oil Substances 0.000 claims description 14
- 210000002445 nipple Anatomy 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 13
- 239000002002 slurry Substances 0.000 claims description 11
- 230000008520 organization Effects 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 9
- 230000000306 recurrent effect Effects 0.000 claims description 7
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000008859 change Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/10—Valve arrangements in drilling-fluid circulation systems
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a well mouth flared short joint capable of improving measuring sensitivity of return flow rate of a drilling liquid and a method. The lower part of a lower casing is connected with a well mouth blowout preventer through a flange I, and the upper part of the lower casing is connected with the lower part of a trapezoidal structure body (4) through a flange II (3); the upper part of the trapezoidal structure body (4) is connected with an upper casing (7) through a flange III (6); the upper part of the upper casing (7) is movably connected with a mud umbrella (8), and the side surface of the upper casing (7) is movably connected with a mud return pipe (9). The well mouth flared short joint has the beneficial effects that (1) by utilizing a controllable semi-cylindrical rubber baffle plate, compared with other measuring types, the flowing cross section of returned drilling liquid is reduced, the return speed of the drilling speed is correspondingly increased, the influence by the radial speed of a drill stem is reduced, and the measuring accuracy is greatly improved; (2) by utilizing the trapezoidal structure body, compared with the square or cylindrical structure body, the distribution of flow lines and speed at the measuring point at one side of a trapezoid in the structure is ideal, and the measuring accuracy is greatly improved.
Description
Technical field
The present invention relates to a kind of drilling tool and method, improve drilling fluid return flow measurement sensitivity particularly to a kind of
Well head bell nipple and method.
Background technology
During oil and gas well drilling, the important process that mud flow rate is in petroleum exploration and development process is returned out in measurement
One of.After gas invades drilling fluid, how high accuracy, true, accurately drilling fluid is returned out in measurement becomes petroleum industrial circle needs
The problem explored, judges whether overflow early, and then adopts an effective measure, and prevents blowout and blowout out of control, reduces various losses.
Presently, there are several schemes for drilling fluid return flow measurement, wherein with most be exactly baffle-type flow
Meter, using baffle-type principle, when drilling fluid flows through baffle plate, has impulsive force to baffle plate, with the difference of flow, the impact of its baffle plate
Power is different, and its impulsive force and flow are in certain relation, and this flow meter component is less, can life-time service, but this kind of stream
After gauge is using a period of time, drilling fluid will be bonded on baffle plate, thus when leading to using identical baffle plate, after use time length,
Certainty of measurement declines, and needs periodically baffle plate to be carried out.Through calculating, return outflow when 24L/s increases to 25L/s, by
In the viscous effect of mud, it raises only 2% about, and this leads to baffle-type effusion meter to return out mud flow rate in actual measurement
Shi Jingdu is not it is impossible to Accurate Prediction overflow.
Second measure drilling fluid return flow mode be：The change of measurement mud pit level height returns outlet pipe to react
Line mud flow rate, employing similar to float level meter, by the change of float position, change into mud pit liquid level
Change, is then converted into flow.The shortcoming of this method is more sensitive for the volumetric ratio of container, and vessel volume is bigger, in volume
When changing identical, liquid level change is less, such as flow when 24L/s increases to 25L/s, in the square mud pit of 5m, 1
The level change of hour is 16.61mm, and time delay is longer, is difficult to meet the need that live high-acruracy survey returns out pipeline mud flow rate
Will.
The third measurement mud flow rate mode be：Shunting quantitative response is measured by branched pipe and returns outlet pipe linear flow rate, its
Principle is by returning out one section of branched pipe in parallel below pipeline, returns outlet pipe linear flow rate by measuring the flow reaction of tubule, it lacks
Point is that free surface is less to branched pipe flow effect, when return outflow increase be twice when, its branched pipe flow just has obvious change
Change, precision is relatively low to be actually needed it is impossible to meet.
In addition, some effusion meters other, although as orifice flowmeter, electromagnetic flowmeter etc. in other industry with relatively
Many, but it is non-full pipe due to returning outlet pipe linear flow rate, certainty of measurement is affected very big.
Content of the invention
The purpose of the present invention is aiming at the drawbacks described above of prior art presence, provides a kind of raising drilling fluid return flow
The well head bell nipple of measurement sensitivity and method.
A kind of well head bell nipple of raising drilling fluid return flow measurement sensitivity that the present invention mentions, including flange
One（1）, lower parts casing pipe（2）, flange two（3）, trapezium structure body（4）, flange three（6）, upper sleeve（7）, slurry basket（8）, mud
Slurry recurrent canal（9）And controlling organization, lower parts casing pipe（2）Flange one is passed through in bottom（1）With wellhead blowout preventor（18）Connect, top leads to
Cross flange two（3）With trapezium structure body（4）Bottom connects；Trapezium structure body（4）Flange three is passed through on top（6）With upper sleeve
（7）Connect；Upper sleeve（7）Top and slurry basket（8）Flexible connection, side and mud recurrent canal（9）It is flexibly connected；Described
Trapezium structure body（4）By target type meter（5）, attached column body rubber baffle plate（10）, telescoping mechanism（11）With cavity composition, cavity
Inside is provided with attached column body rubber baffle plate（10）And telescoping mechanism（11）, and the section of the side of cavity is trapezium structure, opposite side
Section is square structure, attached column body rubber baffle plate（10）Trapezium structure and square structure are separated, attached column body rubber baffle plate
（10）Side pass through telescoping mechanism（11）It is connected with controlling organization；Described target type meter（5）It is arranged on trapezium structure body
（4）Trapezium structure side, drill string（19）Slurry basket from upside（8）Penetrate upper sleeve（7）, trapezium structure body（4）With under
Parts casing pipe（2）, and pass through wellhead blowout preventor（18）Enter stratum.
Above-mentioned controlling organization includes hydraulic circuit one（13）, hydraulic circuit two（14）, three-position four-way valve（15）, hydraulic circuit
Three（16）With accumulator（17）, attached column body rubber baffle plate（10）Side pass through telescoping mechanism（11）With hydraulic cylinder（12）Connect；
Hydraulic cylinder（12）By hydraulic circuit one（13）, hydraulic circuit two（14）With three-position four-way valve（15）Connect, 3-position 4-way commutates
Valve（15）By hydraulic circuit three（16）With accumulator（17）Connect.
Above-mentioned target type meter（5）Using scalable plug-type target type meter.
Above-mentioned attached column body rubber baffle plate（10）It is arranged on trapezium structure body（4）Square structure side, and semi-cylinder structure
Convex surface facing square structure side.
Above-mentioned trapezium structure body（4）Trapezium structure side left side install target type meter（5）.
Above-mentioned target type meter（5）Including choked flow piece（5.1）, expansion link（5.2）, capacitive force sensor（5.3）, display defeated
Go out portion（5.4）, described choked flow piece（5.1）By expansion link（5.2）It is arranged on trapezium structure body（4）Trapezium structure side in
Chamber, expansion link（5.2）Outside be provided with capacitive force sensor（5.3）, display output portion（5.4）Setting outermost end.
A kind of user of the well head bell nipple of raising drilling fluid return flow measurement sensitivity that the present invention mentions
Method, comprises the following steps：
During drilling, attached column body rubber baffle plate（10）Close, accumulator（17）Hydraulic oil is passed through hydraulic circuit three（16）Control three
Position and four-way reversing valve（15）Commutation, then passes through hydraulic circuit one（13）Hydraulic oil is pushed hydraulic pressure about hydraulic valve and closes closed chamber
When, promote piston driving attached column body rubber baffle plate（10）Move to well head center, be adjacent to drill string completely（19）, reduce drill string and shake
Dynamic, realize trapezium structure body（4）Square structure side annular space closing action, force return drilling fluid all from trapezium structure
Body（4）The annular space of trapezium structure side flow through, effectively improve return drilling well flow velocity；
When making a trip, controlled attached column body rubber baffle plate（10）Open, accumulator（17）Hydraulic oil is passed through hydraulic circuit three（16）
Control three position four-way directional control valve（15）Commutation, then passes through hydraulic circuit two（14）Hydraulic oil is pushed hydraulic pressure about hydraulic valve open
When opening chamber, promote piston driving rubber baffle（10）To trapezium structure body（4）A square side shifting, realize trapezium structure body
（4）Square side annular space opening action, return in square structure, realize trapezium structure body（4）Square structure side annular space
Opening action, does not interfere with the put-on and delegated of drilling tool.
The present invention, with respect to prior art, has following remarkable result：
(1), the present invention, for other metering systems, is reduced using controlled attached column body rubber baffle plate and returns out drilling fluid
Flow section, accordingly increased drilling fluid and returned out speed, reduced the impact that drill string radial velocity is brought, significantly simultaneously
Improve certainty of measurement；
(2), the present invention utilizes trapezoidal structure for square or cylindrical structural body, the survey of trapezoidal side in structure
At amount point, streamline and VELOCITY DISTRIBUTION are preferable, greatly improve certainty of measurement；
(3), the present invention utilizes accumulator, fluid pressure line, the controlling organization of three position four-way directional control valve composition, can quickly realize trapezoidal
The switch motion of the attached column body rubber baffle plate in structure, is respectively suitable for drilling well and the process making a trip.
Brief description
Accompanying drawing 1 is the structural representation of the present invention；
Accompanying drawing 2 is the structural representation of target type meter；
Accompanying drawing 3 is the top view of trapezium structure body；
Accompanying drawing 4 is the cooperation figure of trapezium structure body and attached column body rubber baffle plate；
Accompanying drawing 5 is another cooperation figure of trapezium structure body and attached column body rubber baffle plate；
Upper in figure：Flange one（1）, lower parts casing pipe（2）, flange two（3）, trapezium structure body（4）, flange three（6）, upper sleeve
（7）, slurry basket（8）, mud recurrent canal（9）, attached column body rubber baffle plate（10）, telescoping mechanism（11）, hydraulic cylinder（12）, hydraulic oil
Lu Yi（13）, hydraulic circuit two（14）, three-position four-way valve（15）, hydraulic circuit three（16）, accumulator（17）, wellhead blowout preventor
（18）, drill string（19）, choked flow piece（5.1）, expansion link（5.2）, capacitive force sensor（5.3）, display output portion（5.4）.
Specific embodiment
In conjunction with accompanying drawing, the invention will be further described：
A kind of well head bell nipple of raising drilling fluid return flow measurement sensitivity that the present invention mentions, including flange one
（1）, lower parts casing pipe（2）, flange two（3）, trapezium structure body（4）, flange three（6）, upper sleeve（7）, slurry basket（8）, mud
Recurrent canal（9）And controlling organization, lower parts casing pipe（2）Flange one is passed through in bottom（1）With wellhead blowout preventor（18）Connect, top is passed through
Flange two（3）With trapezium structure body（4）Bottom connects；Trapezium structure body（4）Flange three is passed through on top（6）With upper sleeve（7）
Connect；Upper sleeve（7）Top and slurry basket（8）Flexible connection, side and mud recurrent canal（9）It is flexibly connected；Described
Trapezium structure body（4）By target type meter（5）, attached column body rubber baffle plate（10）, telescoping mechanism（11）Form with cavity, in cavity
Portion is provided with attached column body rubber baffle plate（10）And telescoping mechanism（11）, and the section of the side of cavity is trapezium structure, opposite side cuts
Face is square structure, attached column body rubber baffle plate（10）Trapezium structure and square structure are separated, attached column body rubber baffle plate（10）
Side pass through telescoping mechanism（11）It is connected with controlling organization；Described target type meter（5）It is arranged on trapezium structure body（4）'s
Trapezium structure side, drill string（19）Slurry basket from upside（8）Penetrate upper sleeve（7）, trapezium structure body（4）With lower parts casing pipe
（2）, and pass through wellhead blowout preventor（18）Enter stratum.
Wherein, controlling organization includes hydraulic circuit one（13）, hydraulic circuit two（14）, three-position four-way valve（15）, hydraulic oil
Road three（16）With accumulator（17）, attached column body rubber baffle plate（10）Side pass through telescoping mechanism（11）With hydraulic cylinder（12）Even
Connect；Hydraulic cylinder（12）By hydraulic circuit one（13）, hydraulic circuit two（14）With three-position four-way valve（15）Connect, 3-position 4-way changes
To valve（15）By hydraulic circuit three（16）With accumulator（17）Connect.
The target type meter of the present invention（5）Using scalable plug-type target type meter, trapezium structure body（4）Trapezoidal
Target type meter is installed in the left side of structure side（5）.
Attached column body rubber baffle plate（10）It is arranged on trapezium structure body（4）Square structure side, and semi-cylinder structure is convex
Facing to square structure side.
Target type meter（5）Including choked flow piece（5.1）, expansion link（5.2）, capacitive force sensor（5.3）, display output portion
（5.4）, described choked flow piece（5.1）By expansion link（5.2）It is arranged on trapezium structure body（4）Trapezium structure side inner chamber, stretch
Contracting bar（5.2）Outside be provided with capacitive force sensor（5.3）, display output portion（5.4）Setting outermost end.In pipe flow perpendicular to
Flow direction installs a disc choked flow piece, referred to as " target ".Fluid, through out-of-date, will produce active force to target due to being obstructed,
Square being directly proportional of this active force and flow velocity.By measuring active force suffered by target, rate of flow of fluid can be obtained.Therefore, drilling fluid
Return out flow velocity faster, certainty of measurement will be higher.
A kind of user of the well head bell nipple of raising drilling fluid return flow measurement sensitivity that the present invention mentions
Method, comprises the following steps：
During drilling, attached column body rubber baffle plate（10）Close, accumulator（17）Hydraulic oil is passed through hydraulic circuit three（16）Control three
Position and four-way reversing valve（15）Commutation, then passes through hydraulic circuit one（13）Hydraulic oil is pushed hydraulic pressure about hydraulic valve and closes closed chamber
When, promote piston driving attached column body rubber baffle plate（10）Move to well head center, be adjacent to drill string completely（19）, reduce drill string and shake
Dynamic, realize trapezium structure body（4）Square structure side annular space closing action, force return drilling fluid all from trapezium structure
Body（4）The annular space of trapezium structure side flow through, effectively improve return drilling well flow velocity；
When making a trip, controlled attached column body rubber baffle plate（10）Open, accumulator（17）Hydraulic oil is passed through hydraulic circuit three（16）
Control three position four-way directional control valve（15）Commutation, then passes through hydraulic circuit two（14）Hydraulic oil is pushed hydraulic pressure about hydraulic valve open
When opening chamber, promote piston driving rubber baffle（10）To trapezium structure body（4）A square side shifting, realize trapezium structure body
（4）Square side annular space opening action, return in square structure, realize trapezium structure body（4）Square structure side annular space
Opening action, does not interfere with the put-on and delegated of drilling tool.
In addition, it is necessary to explanation is：In drilling process, after gas invades drilling fluid, due to pressure drop in uphill process,
Cause volumetric expansion so that drilling well flow velocity is accelerated.Because drilling process is usually fixed displacement drilling, so drilling fluid returns out stream
Speed is basically unchanged.If unexpected change exceedes greatly a certain scope, can determine whether it is gas cut.
Further, the present invention utilizes trapezoidal construction inner for square or cylindrical structural body, structure manhole ladder
The measurement point streamline of shape side and VELOCITY DISTRIBUTION are preferable, greatly improve certainty of measurement.
The above, be only the part preferred embodiment of the present invention, and any those of ordinary skill in the art all may profit
Changed with the technical scheme of above-mentioned elaboration or be revised as equivalent technical scheme.Therefore, according to the technology of the present invention
Any simple modification or substitute equivalents that scheme is carried out, belong to the greatest extent the scope of protection of present invention.
Claims (7)
1. a kind of well head bell nipple improving drilling fluid return flow measurement sensitivity, is characterized in that：Including flange one
（1）, lower parts casing pipe（2）, flange two（3）, trapezium structure body（4）, flange three（6）, upper sleeve（7）, slurry basket（8）, mud
Recurrent canal（9）And controlling organization, lower parts casing pipe（2）Flange one is passed through in bottom（1）With wellhead blowout preventor（18）Connect, top is passed through
Flange two（3）With trapezium structure body（4）Bottom connects；Trapezium structure body（4）Flange three is passed through on top（6）With upper sleeve（7）
Connect；Upper sleeve（7）Top and slurry basket（8）Flexible connection, side and mud recurrent canal（9）It is flexibly connected；Described
Trapezium structure body（4）By target type meter（5）, attached column body rubber baffle plate（10）, telescoping mechanism（11）Form with cavity, in cavity
Portion is provided with attached column body rubber baffle plate（10）And telescoping mechanism（11）, and the section of the side of cavity is trapezium structure, opposite side cuts
Face is square structure, attached column body rubber baffle plate（10）Trapezium structure and square structure are separated, attached column body rubber baffle plate（10）
Side pass through telescoping mechanism（11）It is connected with controlling organization；Described target type meter（5）It is arranged on trapezium structure body（4）'s
Trapezium structure side, drill string（19）Slurry basket from upside（8）Penetrate upper sleeve（7）, trapezium structure body（4）With lower parts casing pipe
（2）, and pass through wellhead blowout preventor（18）Enter stratum.
2. the well head bell nipple improving drilling fluid return flow measurement sensitivity according to claim 1, its feature
It is：Described controlling organization includes hydraulic circuit one（13）, hydraulic circuit two（14）, three-position four-way valve（15）, hydraulic circuit three
（16）With accumulator（17）, attached column body rubber baffle plate（10）Side pass through telescoping mechanism（11）With hydraulic cylinder（12）Connect；Liquid
Cylinder pressure（12）By hydraulic circuit one（13）, hydraulic circuit two（14）With three-position four-way valve（15）Connect, three position four-way directional control valve
（15）By hydraulic circuit three（16）With accumulator（17）Connect.
3. the well head bell nipple improving drilling fluid return flow measurement sensitivity according to claim 1, its feature
It is：Described target type meter（5）Using scalable plug-type target type meter.
4. the well head bell nipple improving drilling fluid return flow measurement sensitivity according to claim 1, its feature
It is：Described attached column body rubber baffle plate（10）It is arranged on trapezium structure body（4）Square structure side, and the convex surface of semi-cylinder structure
Towards square structure side.
5. the well head bell nipple improving drilling fluid return flow measurement sensitivity according to claim 1, its feature
It is：Described trapezium structure body（4）Trapezium structure side left side install target type meter（5）.
6. the well head bell nipple improving drilling fluid return flow measurement sensitivity according to claim 1, its feature
It is：Described target type meter（5）Including choked flow piece（5.1）, expansion link（5.2）, capacitive force sensor（5.3）, display output portion
（5.4）, described choked flow piece（5.1）By expansion link（5.2）It is arranged on trapezium structure body（4）Trapezium structure side inner chamber, stretch
Contracting bar（5.2）Outside be provided with capacitive force sensor（5.3）, display output portion（5.4）Setting outermost end.
7. a kind of well head horn mouth of the raising drilling fluid return flow measurement sensitivity as any one of claim 1-6
The using method of pipe nipple, is characterized in that comprising the following steps：
During drilling, attached column body rubber baffle plate（10）Close, accumulator（17）Hydraulic oil is passed through hydraulic circuit three（16）Control three
Position and four-way reversing valve（15）Commutation, then passes through hydraulic circuit one（13）Hydraulic oil is pushed hydraulic pressure about hydraulic valve and closes closed chamber
When, promote piston driving attached column body rubber baffle plate（10）Move to well head center, be adjacent to drill string completely（19）, reduce drill string and shake
Dynamic, realize trapezium structure body（4）Square structure side annular space closing action, force return drilling fluid all from trapezium structure
Body（4）The annular space of trapezium structure side flow through, effectively improve return drilling well flow velocity；
When making a trip, controlled attached column body rubber baffle plate（10）Open, accumulator（17）Hydraulic oil is passed through hydraulic circuit three（16）
Control three position four-way directional control valve（15）Commutation, then passes through hydraulic circuit two（14）Hydraulic oil is pushed hydraulic pressure about hydraulic valve open
When opening chamber, promote piston driving rubber baffle（10）To trapezium structure body（4）A square side shifting, realize trapezium structure body
（4）Square side annular space opening action, return in square structure, realize trapezium structure body（4）Square structure side annular space
Opening action, does not interfere with the put-on and delegated of drilling tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611129488.3A CN106401513B (en) | 2016-12-09 | 2016-12-09 | Improve the well head bell nipple of drilling fluid return flow measurement sensitivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611129488.3A CN106401513B (en) | 2016-12-09 | 2016-12-09 | Improve the well head bell nipple of drilling fluid return flow measurement sensitivity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106401513A true CN106401513A (en) | 2017-02-15 |
| CN106401513B CN106401513B (en) | 2017-06-16 |
Family
ID=58083852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611129488.3A Active CN106401513B (en) | 2016-12-09 | 2016-12-09 | Improve the well head bell nipple of drilling fluid return flow measurement sensitivity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183070A (en) * | 2021-12-07 | 2022-03-15 | 托普威尔石油技术股份公司 | Drilling method without drilling and closing under pressure |
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|---|---|---|---|---|
| EP0437872A2 (en) * | 1989-12-14 | 1991-07-24 | Anadrill International SA | Method and system for measurement of fluid flow in a drilling rig return line |
| US6257354B1 (en) * | 1998-11-20 | 2001-07-10 | Baker Hughes Incorporated | Drilling fluid flow monitoring system |
| 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 |
| CN102704874A (en) * | 2012-05-18 | 2012-10-03 | 西南石油大学 | Device and method for detecting drilling fluid return flow |
| CN202596620U (en) * | 2012-05-18 | 2012-12-12 | 西南石油大学 | Novel floating ball type slurry outlet flow detection meter |
| CN103510893A (en) * | 2012-06-29 | 2014-01-15 | 中国石油天然气集团公司 | Well drilling device and method for controlling bottom hole pressure by monitoring flow |
| CN204299513U (en) * | 2014-11-19 | 2015-04-29 | 四川永盛祥科技有限公司 | Drilling well overflow monitoring system |
-
2016
- 2016-12-09 CN CN201611129488.3A patent/CN106401513B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0437872A2 (en) * | 1989-12-14 | 1991-07-24 | Anadrill International SA | Method and system for measurement of fluid flow in a drilling rig return line |
| US6257354B1 (en) * | 1998-11-20 | 2001-07-10 | Baker Hughes Incorporated | Drilling fluid flow monitoring system |
| 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 |
| CN102704874A (en) * | 2012-05-18 | 2012-10-03 | 西南石油大学 | Device and method for detecting drilling fluid return flow |
| CN202596620U (en) * | 2012-05-18 | 2012-12-12 | 西南石油大学 | Novel floating ball type slurry outlet flow detection meter |
| CN103510893A (en) * | 2012-06-29 | 2014-01-15 | 中国石油天然气集团公司 | Well drilling device and method for controlling bottom hole pressure by monitoring flow |
| CN204299513U (en) * | 2014-11-19 | 2015-04-29 | 四川永盛祥科技有限公司 | Drilling well overflow monitoring system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183070A (en) * | 2021-12-07 | 2022-03-15 | 托普威尔石油技术股份公司 | Drilling method without drilling and closing under pressure |
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| Publication number | Publication date |
|---|---|
| CN106401513B (en) | 2017-06-16 |
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