CN208152966U - A kind of well system - Google Patents
A kind of well system Download PDFInfo
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- CN208152966U CN208152966U CN201721646626.5U CN201721646626U CN208152966U CN 208152966 U CN208152966 U CN 208152966U CN 201721646626 U CN201721646626 U CN 201721646626U CN 208152966 U CN208152966 U CN 208152966U
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Abstract
The utility model discloses a kind of well systems, including drilling well pump group, top to drive, push up and drive adapter, conventional preventer group, drilling rod, conventional drilling tool, drill bit, data monitoring control system and self-choke manifold；The drilling rod is double-wall drill pipe, and the drilling rod is double-wall drill pipe；Mud lifting device is connected in double-wall drill pipe lower part；Mud lifting device is made of lifting pump, intermediate pipe nipple and power motor.It injects mud to pass through top drive, push up and drive adapter duct, double-wall drill pipe annular space arrival mud lifting device, mud drives power motor after rotating and by routine drilling tool and drill bit, into shaft bottom annular space；The mud that annular space returns is shorted, by intermediate into lifting pump, and power motor provides power for lifting pump, and lifting mud successively passes through double-wall drill pipe duct and top and drives adapter duct, then reaches downstream mud disposal system by self-choke manifold.The advantages of the utility model is adaptable, has reduction equivalent circulating density, improves drilling duty.
Description
Technical field
The utility model relates to the well systems that one of drilling rig technical field drills out wellbore in stratum, especially
It is related to a kind of well system that can control bottom pressure.
Background technique
During conventional drilling, drill string inner hole forms the system being connected to, i.e. U with annular space by bit port
Shape pipe.According to U-tube principle, the bottom pressure expression formula during conventional drilling is：
Pb=Pmd+Pla （1）
In formula 1, Pb- bottom pressure, Pmd- drilling fluid liquid column hydrostatic pressure, annular space friction pressure when Pla- is recycled.
It can be seen that the pressure failure stratum for narrow pressure window stratum or old filed, conventional mud from this formula
Bottom pressure is equal to required pressure when density design can guarantee static（Design pressure）.But when drilling fluid starts the cycle over,
As soon as bottom pressure increases an annular space friction pressure, it is likely to just cause leakage at this time.It needs to drop at this time according to conventional well control
Low mud density be lower than formation fracture pressure, if encountering the narrow Density Window stratum of abnormal pressure, well kick be possible to
Generation.This will will lead to the mud cost and frequent well control problem of additional drilling well nonproductive time, excess, or even not
It can bore up to design well depth.
Therefore, bottom pressure how is adjusted to effectively reduce leakage or drill narrow Density Window as some areas
One important problem of drilling well.
Summary of the invention
The purpose of this utility model is exactly problem of the existing technology, provides one kind and effectively reduces leakage or drill
The well system of narrow Density Window.
The technical solution of the utility model includes：
A kind of well system, including drilling well pump group 1, top drive 3, top and drive adapter 4, conventional preventer group 7, drilling rod, routine
Drilling tool 11, drill bit 12, data monitoring control system 17 and self-choke manifold 18；Wherein, data monitoring control system 17 monitors
Drilling well pump group injection flow, mud return outflow, vertical pressure and return of drilling mud's back pressure, and control self-choke manifold 18.
The drilling rod is double-wall drill pipe 9, and double-wall drill pipe 9 is made of concentric interior drilling rod 91 and outer drilling rod 90, interior drilling rod 91
Annular space B15 is constituted between outer drilling rod 90, the inside of interior drilling rod 91 forms duct A16.
Adapter 4 is driven on 9 top of double-wall drill pipe connection top, is connected with mud lifting device 10, double-walled in 9 lower part of double-wall drill pipe
Drilling rod 9, mud lifting device 10, conventional drilling tool 11 and drill bit 12 are sequentially connected composition downhole assembly from top to bottom.
Mud lifting device 10 is made of lifting pump 102, intermediate pipe nipple 101 and power motor 100, and intermediate pipe nipple 101 is pacified
Between lifting pump 102 and power motor 100.
It is the rotary joint being mounted between top drive 3 and double-wall drill pipe 9 that adapter 4 is driven on top, and top drives adapter 4 and is machined with hole
Drive slurry channel and annular space B15, the duct connected pore channel C41 A16 and self-choke in road B40 and duct C41, duct B40 connection top
Manifold 18.
Above scheme further comprises：
The power motor 100 be turbine motor, be inside the shell A1001 of power motor 100 from inside to outside according to
Secondary to be equipped with mandrel A1006, turbine rotor 1003 and turbine stator 1002, mandrel A1006 is by bearing group righting and thrust, mandrel
The flow-guiding channel of connection turbine clearance and lower part routine drilling tool is provided on A1006.
The intermediate pipe nipple 101 is to be machined with the duct being axially arranged on the shell B1011 of cylindrical structure
The duct H1020 of F1012, the duct G1016 being arranged radially and intercommunicating pore B1018, central axial setting；In intermediate pipe nipple 101
Duct H1020 in ecto-entad be sequentially installed with sliding plunger 1014, interval cylinder 1015 and mandrel B1017；It is spaced cylinder 1015
To process the shape after an axially concentric bore in " convex " font step cylinder, interval 1015 lower part of cylinder is outstanding outer
Static seal cooperates between cylindrical surface and the duct H1020 of shell B1011；Mandrel B1017 is mounted on interval 1015 interior bone of cylinder
In, the cooperation of rotatory sealing between the two；Sliding plunger 1014 is mounted on interval 1015 top external cylindrical surface of cylinder and duct H1020's
Between inner wall, formation is slidingly sealed cooperation；Duct F1012 is provided inwardly with the intercommunicating pore being connected to 1014 top of sliding plunger
The annular space A14 in shaft bottom is connected to by A1013, intercommunicating pore B1018 with 1014 lower part of sliding plunger.
The lifting pump 102 is to be sequentially installed with guide vane 1027, leaf in the shell C1021 ecto-entad of cylindrical structure
Take turns 1026 and mandrel C1023；Wherein, duct D1022, impeller 1026 and guide vane are formed between guide vane 1027 and shell C (1021)
Duct E1025 is formed between 1027.
Double-wall drill pipe annular space B15 from top to bottom successively with lifting pump duct D1022, centre pipe nipple duct F1012 and power
The flow-guiding channel of motor 100 penetrates through；Annular space A14 upwards successively with intermediate pipe nipple duct G1016, lifting pump duct E1025 and double
Wall drilling rod duct A16 connection.
When sliding plunger 1014 is in lower fulcrum, intermediate pipe nipple duct G1016 is opened；Sliding plunger 1014 is in upper fulcrum
When, intermediate pipe nipple duct G1016 is closed；Turbine rotor 1003 successively with power motor mandrel A1006, intermediate pipe nipple mandrel
B1017 is connected with lifting pump mandrel C1023, and final lifting pump mandrel C1023 impeller 1026 rotates.
The lifting pump 102 is centrifugal multistage pump multiple centrifugal pump；1014 bottom of sliding plunger of the intermediate pipe nipple 101 and interval
Spring 1019 is housed between cylinder 1015.
Rotating spray-proof flow guiding apparatus 6 is installed on conventional 7 top of preventer group, rotating spray-proof flow guiding apparatus 6 is connected with auxiliary
The fluid passing away of pump installation 5, auxiliary pump installation 5 is connected to by rotating spray-proof flow guiding apparatus 6 with annular space A14.
The self-choke manifold 18 is mating to have throttle valve and flow sensor；Power motor 100 and lifting pump 102
Between speed increaser is also installed；Setting injection flow sensor 2 in drilling well pump group 1.
The flow sensor is mass flow sensor.
The advantages of the utility model includes：（1）It is adaptable, it can be applied to land bored well and offshore drilling, be suitable for
But the probings service such as be not limited to oil/gas drilling, geothermal drilling and CBM Drilling；（2）It can reduce equivalent circulating density, mention
High drilling duty effectively reduces leakage or drills narrow Density Window；（3）Discovery overflow in time simultaneously can be controlled effectively rapidly
Bottom pressure processed.
Detailed description of the invention
Fig. 1 is the overall device and connection schematic diagram of a kind of well system of the utility model.
Fig. 2 is the structural schematic diagram of lifting pump and intermediate pipe nipple in a kind of well system of the utility model（Duct G open shape
State）.
Fig. 3 is the structural schematic diagram of lifting pump and intermediate pipe nipple in a kind of well system of the utility model（Duct G closes shape
State）.
Fig. 4 is the structural schematic diagram of power motor in a kind of well system of the utility model.
In figure：1. drilling well pump group, 2. injection flow sensors, 3. tops are driven, 4. top drive adapters, 5. auxiliary pump installations, and 6.
Rotating spray-proof flow guiding apparatus, 7. conventional preventer groups, 8. casings, 9. double-wall drill pipes, 10. mud lifting devices, 11. conventional brills
Tool, 12. drill bits, 13. naked eyes, 14. annular space A, 15. annular space B, 16. duct A, 17. data monitoring control systems, 18. self-chokes
Manifold, 40. duct B, 41. duct C, 90. outer drilling rods, drilling rod in 91., 100. power motors, 101. intermediate pipe nipples, 102. lift
It rises and pumps, 1001. shell A, 1002. turbine stators, 1003. turbine rotors, 1004. thrust bearings, 1005. transverse bearing A,
1006. mandrel A, the 1011. shell intercommunicating pore A of B, 1012. duct F, 1013., 1014. sliding plungers, 1015. are spaced cylinders,
1016. duct G, 1017. mandrel B, 1018. intercommunicating pore B, 1019. springs, 1020. duct H, 1021. shell C, 1022.
Duct D, 1023. mandrel C, 1024. transverse bearing B, 1025. duct E, 1026. impellers, 1027. guide vanes.
Specific embodiment
The utility model is further described with reference to the accompanying drawing：
Embodiment 1：Referring to attached drawing 1, a kind of well system includes that 3, top is driven on drilling well pump group 1, injection flow sensor 2, top
Drive adapter 4, auxiliary pump installation 5, rotating spray-proof flow guiding apparatus 6, conventional preventer group 7, double-wall drill pipe 9, mud lifting device
10, conventional drilling tool 11, drill bit 12, data monitoring control system 17 and self-choke manifold 18.
Double-wall drill pipe 9 protrudes into wellbore（Wellbore is made of upper sleeve 8 and lower part naked eye 13）, adaptation is driven on top connection top
Device 4, lower part connect mud lifting device 10；10 lower part of mud lifting device connects conventional drilling tool 11 and drill bit 12；Double-wall drill pipe
9, mud lifting device 10, conventional drilling tool 11 and drill bit 12 constitute downhole assembly；Shape between downhole assembly and wellbore
At annular space A14.Conventional drilling tool 11 includes conventional drilling rod, drill collar and drilling tool check valve and underground observing and controlling tool etc..
Double-wall drill pipe 9 is made of concentric interior drilling rod 91 and outer drilling rod 90, constitutes ring between interior drilling rod 91 and outer drilling rod 90
The inside of gap B15, interior drilling rod 91 form duct A16；Annular space B15 is used to convey mud to shaft bottom, and duct A16 is returned out for mud to flow
Road；Outer about 90 drilling rod of double-wall drill pipe is machined with screw thread, is vertically connected between outer drilling rod 90 by screw thread；Lead between interior drilling rod 91
The mode for crossing grafting sealing connects, so that the fluid in annular space B15 and duct A16 be isolated；The outer drilling rod 90 of double-wall drill pipe and interior brill
Wiper block is installed between bar 91（It is not drawn into figure）.
It is the rotary joint being mounted between top drive 3 and double-wall drill pipe 9 that adapter 4 is driven on top, is driven for double-wall drill pipe 9 and top
3 connection；It drives adapter 4 and is machined with duct B40 and duct C41 in top；Drive slurry channel and annular space B15 in duct B40 connection top；Hole
The road connected pore channel C41 A16 and self-choke manifold 18.
Mud lifting device 10 is made of for lifting mud lifting pump 102, intermediate pipe nipple 101 and power motor 100.
Drilling well pump group 1 injects mud and passes through top drive 3, pushes up and drive adapter duct B40, double-wall drill pipe annular space B15 arrival mud lifting device
10, mud passes through conventional drilling tool 11 and drill bit 12 after driving power motor 100 to rotate again, into annular space A14；Annular space A14 is returned
Mud by intermediate pipe nipple 101, into lifting pump 102, power motor 100 is that lifting pump 102 provides power, lifting mud according to
It is secondary to drive adapter duct C41 by double-wall drill pipe duct A16 and top, then reached at the mud of downstream by self-choke manifold 18
Reason system；Intermediate pipe nipple 101 is used for the opening and closing in 102 midge channel of lifting pump.
18 Matched Drilling throttle valve of self-choke manifold, for applying back pressure to the mud for returning out double-wall drill pipe 9；Automatic section
Flow tube 18 mating return of drilling mud's back pressure sensors of remittance and return of drilling mud's flow sensor, wherein return of drilling mud's flow sensor is matter
Measure flow sensor.
Rotating spray-proof flow guiding apparatus 6 is mounted on conventional 7 top of preventer group, and auxiliary pump installation 5 and rotating spray-proof water conservancy diversion fill
6 connections are set, the fluid passing away of auxiliary pump installation 5 is connected to by rotating spray-proof flow guiding apparatus 6 with annular space A14.Auxiliary pump dress
5 are set for the injection auxiliary fluid into annular space A14, for adjusting the liquid level in annular space A14.
For controlling self-choke manifold 18, data monitoring control system 17 monitors data monitoring control system 17
Drilling well pump group 1 injects flow, the mud of double-wall drill pipe 9 returns outflow, founds pressure and return of drilling mud's back pressure, is used for leakage overfall working condition
Judge and controls self-choke manifold 18 for the control of return of drilling mud's back pressure and flow control.Drilling well pump group 1 injects flow can be with
Number is rushed by the pump rush sensor being mounted in drilling well pump group 1 and cylinder sleeve diameter calculation is found out, and can also be bored by being mounted on
The injection flow sensor 2 that well pump group 1 exports collects.
One detailed example of mud lifting device 10 is referring to attached drawing 2, Fig. 3 and Fig. 4.Power motor 100 is turbine motor,
Turbine rotor 1003 and turbine stator 1002 are installed inside the shell A1001 of power motor 100, mud passes through turbine rotor
1003 and turbine stator 1002 drive turbine rotor 1003 rotate, band moving mandrel A1006 rotation be lifting pump 102 power is provided,
The interior installation bearing group of power motor 100 includes thrust bearing 1004 and transverse bearing A1005 is that mandrel A1006 realizes righting and stops
It pushes away.
Lifting pump 102 is centrifugal multistage pump multiple centrifugal pump, including shell C1021 and the impeller 1026, the guide vane that are mounted in shell C1021
1027 and mandrel C1023；Inside installation transverse bearing B1024 realizes the righting to mandrel C1023；Guide vane 1027 and shell
Duct D1022 is formed between C1021, and duct E1025 is formed between impeller 1026 and guide vane 1027.
Intermediate pipe nipple 101 includes shell B1011, and shell B1011 is cylindrical structure, is machined with hole on shell B1011
Road F1012, duct G1016 and duct H1020；Duct H1020 is the axially concentric bore processed on shell B1011；It is intermediate
Pipe nipple 101 further includes the sliding plunger 1014 being mounted in the H1020 of duct, interval cylinder 1015 and mandrel B1017；It is spaced cylinder 1015
To process the shape after an axially concentric bore, interval cylinder 1015 and shell B1011 in " convex " font step cylinder
It is opposing stationary, it is spaced between 1015 lower part external cylindrical surface of cylinder and the duct H1020 of shell B1011 and static seal is installed；Mandrel B1017
It is mounted in 1015 interior bone of cylinder of interval, rotatory sealing is installed between the two；On 1014 installation interval cylinder 1015 of sliding plunger
Between portion's external cylindrical surface and the inner wall of duct H1020, formation is slidingly sealed.In the F1012 of duct mud by intercommunicating pore A1013 with
The connection of 1014 top of sliding plunger applies down force to sliding plunger 1014；1014 bottom of sliding plunger and interval cylinder
Spring 1019 is housed between 1015.Mud is connected to by intercommunicating pore B1018 with 1014 lower part of sliding plunger in annular space A14, in conjunction with cunning
1014 bottom spring 1019 of piston applies upward active force to sliding plunger 1014.
Intermediate pipe nipple 101 is mounted between lifting pump 102 and power motor 100, shell A1001, shell B1011, shell
Threaded connection is utilized between C1021；Injection mud in double-wall drill pipe annular space B15 successively passes through lifting pump duct from top to bottom
D1022, intermediate pipe nipple duct F1012, power motor 100, conventional drilling tool 11 to drill bit bottom.Return mud passes through on annular space A14
Intermediate pipe nipple duct G1016, lifting pump duct E1025 and double-wall drill pipe duct A16 are returned out upwards；Sliding plunger 1014 is in down
When fulcrum, intermediate pipe nipple duct G1016 is opened（Referring to attached drawing 2）；When sliding plunger 1014 is in upper fulcrum, intermediate pipe nipple duct
G1016 is closed（Referring to attached drawing 3）；Turbine rotor 1003 successively drives power motor mandrel A1006, intermediate pipe nipple mandrel B1017
It is rotated with lifting pump mandrel C1023, lifting pump mandrel C1023 impeller 1026 rotates.
Speed increaser can also be installed between power motor 100 and lifting pump 102（It is not shown in the figure）, to improve power horse
The revolving speed of 102 mandrel C1023 of lifting pump is conveyed to up to mandrel A1006.
The boring method of aforementioned well system includes the following steps：
Adapter 4 is driven on 9 top of double-wall drill pipe connection top, and lower part connects mud lifting device 10；Under mud lifting device 10
Portion connects conventional drilling tool 11 and drill bit 12；Double-wall drill pipe 9, mud lifting device 10, conventional drilling tool 11 and drill bit 12 constitute underground
Drill assembly；Downhole assembly protrudes into wellbore；Rotating spray-proof flow guiding apparatus 6, auxiliary are installed on conventional 7 top of preventer group
Pump installation 5 is connect with rotating spray-proof flow guiding apparatus 6, and the fluid passing away of auxiliary pump installation 5 passes through rotating spray-proof flow guiding apparatus 6
It is connected to annular space A14.
Drilling well pump group 1 injects mud and passes through top drive 3, pushes up and drive adapter duct B40, double-wall drill pipe annular space B15 arrival mud
Lifting device 10, mud passes through conventional drilling tool 11 and drill bit 12 after driving power motor 100 to rotate again, into annular space A14；Annular space
The mud that A14 is returned passes through intermediate pipe nipple 101, into lifting pump 102, and power motor 100 is that lifting pump 102 provides power, lifts
It rises mud and successively passes through double-wall drill pipe duct A16 and top drive adapter duct C41, under then being reached by self-choke manifold 18
Swim mud disposal system；Intermediate pipe nipple 101 is used for the opening and closing in 102 midge channel of lifting pump.
18 Matched Drilling throttle valve of self-choke manifold, for applying back pressure to the mud for returning out double-wall drill pipe 9.
For controlling self-choke manifold 18, data monitoring control system 17 monitors data monitoring control system 17
Drilling well pump group 1 injects flow, the mud of double-wall drill pipe 9 returns outflow, founds pressure and return of drilling mud's back pressure, is used for leakage overfall working condition
Judge and controls self-choke manifold 18 for the control of return of drilling mud's back pressure and flow control.Data monitoring control system 17 passes through
The return of drilling mud's back pressure for adjusting double-wall drill pipe 9 returns outflow to control mud；Data monitoring control system 17 is in the automatic section of control
In the case that flow tube remittance operating condition is constant, the size by monitoring return of drilling mud's flow judges that shaft bottom overflow and leakage etc. are complicated
Situation.
Pump installation 5 is assisted to be used for the injection auxiliary fluid into annular space A14, for adjusting the liquid level in annular space A14；It is auxiliary
The auxiliary fluid for helping pump installation 5 to inject into annular space A14, which can be a kind of physical property and be different from drilling well pump group 1, injects mud
Fluid, such as density is different or rheological characteristic is different mud or leak stopping gel；Injection auxiliary fluid is for the ring that increases sharply
Liquid level in gap A14 is to control underground overflow.
Claims (6)
1. a kind of well system, including drilling well pump group（1）, top drive（3）, top drive adapter（4）, conventional preventer group（7）, bore
Bar, conventional drilling tool（11）, drill bit（12）, data monitoring control system（17）With self-choke manifold（18）；Wherein, data monitoring
Control system (17) monitoring drilling well pump group injection flow, mud return outflow, vertical pressure and return of drilling mud's back pressure, and to self-choke
Manifold (18) is controlled；It is characterized in that：
The drilling rod is double-wall drill pipe (9), and double-wall drill pipe (9) is made of concentric interior drilling rod (91) and outer drilling rod (90), interior brill
Annular space B (15) are constituted between bar (91) and outer drilling rod (90), the inside of interior drilling rod (91) forms duct A (16)；
Adapter (4) are driven on double-wall drill pipe (9) top connection top, are connected with mud lifting device (10) in double-wall drill pipe (9) lower part,
Double-wall drill pipe (9), mud lifting device (10), conventional drilling tool (11) and drill bit (12) are sequentially connected from top to bottom constitutes underground brill
Tool combination；
Mud lifting device (10) is made of lifting pump (102), intermediate pipe nipple (101) and power motor (100), intermediate pipe nipple
(101) it is mounted between lifting pump (102) and power motor (100)；
It is the rotary joint being mounted between top drive (3) and double-wall drill pipe (9) that adapter (4) are driven on top, and adapter (4) processing is driven on top
There are duct B (40) and duct C (41), slurry channel and annular space B (15), duct C are driven in duct B (40) connection top（41）Connected pore channel
A（16）With self-choke manifold（18）.
2. well system according to claim 1, it is characterised in that：
The power motor (100) is turbine motor, is in power motor（100）Shell A（1001）Inside is from inside to outside
It is sequentially installed with mandrel A（1006）, turbine rotor（1003）And turbine stator（1002）, mandrel A（1006）By bearing group righting
And thrust, mandrel A（1006）On be provided with connection turbine clearance and lower part routine drilling tool flow-guiding channel；
The intermediate pipe nipple (101) is to be machined with the duct F being axially arranged on the shell B (1011) of cylindrical structure
(1012), the duct G (1016) and intercommunicating pore B being arranged radially（1018）, central axial setting duct H (1020)；In centre
Duct H (1020) interior ecto-entad of pipe nipple (101) is sequentially installed with sliding plunger (1014), interval cylinder (1015) and mandrel B
(1017)；Being spaced cylinder (1015) is that the shape after an axially concentric bore is processed in " convex " font step cylinder,
Static seal cooperates between cylinder (1015) lower part external cylindrical surface outstanding and the duct H (1020) of shell B (1011)；Mandrel B
(1017) it is mounted in cylinder (1015) interior bone of interval, the cooperation of rotatory sealing between the two；Sliding plunger (1014) is mounted on
It is spaced between cylinder (1015) top external cylindrical surface and the inner wall of duct H (1020), formation is slidingly sealed cooperation；Duct F（1012）
It is provided inwardly with and sliding plunger（1014）The intercommunicating pore A of top connection（1013）, intercommunicating pore B（1018）By the annular space A in shaft bottom
（14）With sliding plunger（1014）Lower part connection；
The lifting pump (102) be cylindrical structure shell C (1021) ecto-entad be sequentially installed with guide vane (1027),
Impeller (1026) and mandrel C (1023)；Wherein, guide vane (1027) and shell C（1021）Between formed duct D (1022), impeller
(1026) duct E (1025) are formed between guide vane (1027)；
Double-wall drill pipe annular space B (15) from top to bottom successively with lifting pump duct D (1022), centre pipe nipple duct F (1012) and dynamic
The flow-guiding channel of force motor (100) penetrates through；Annular space A (14) upwards successively with intermediate pipe nipple duct G (1016), lifting pump duct E
(1025) it is connected to double-wall drill pipe duct A (16)；
When sliding plunger (1014) is in lower fulcrum, intermediate pipe nipple duct G (1016) is opened；Sliding plunger (1014) is in upper branch
When point, intermediate pipe nipple duct G (1016) is closed；Turbine rotor (1003) successively with power motor mandrel A (1006), intermediate pipe nipple
Mandrel B (1017) and lifting pump mandrel C (1023) connection, final lifting pump mandrel C (1023) impeller (1026) rotation.
3. well system according to claim 2, it is characterised in that：The lifting pump (102) is centrifugal multistage pump multiple centrifugal pump；Institute
State the sliding plunger of intermediate pipe nipple (101)（1014）Spring is housed between bottom and interval cylinder (1015)（1019）.
4. well system according to claim 1,2 or 3, it is characterised in that：It installs and revolves on conventional preventer group (7) top
Turn spray-proof flow guiding apparatus (6), rotating spray-proof flow guiding apparatus (6) connection auxiliary pump installation (5), the fluid row of auxiliary pump installation (5)
Channel is connected to by rotating spray-proof flow guiding apparatus (6) with annular space A (14) out.
5. well system according to claim 4, it is characterised in that：The self-choke manifold (18) is mating with section
Flow valve and flow sensor；Power motor（100）And lifting pump（102）Between speed increaser is also installed；Drilling well pump group（1）Upper setting
Inject flow sensor（2）.
6. well system according to claim 5, it is characterised in that：The flow sensor is mass flow sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721646626.5U CN208152966U (en) | 2017-12-01 | 2017-12-01 | A kind of well system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721646626.5U CN208152966U (en) | 2017-12-01 | 2017-12-01 | A kind of well system |
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| CN208152966U true CN208152966U (en) | 2018-11-27 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869105A (en) * | 2017-12-01 | 2019-06-11 | 中石化石油工程技术服务有限公司 | A kind of well system and its boring method |
| CN110344752A (en) * | 2019-07-10 | 2019-10-18 | 西南石油大学 | Double-walled screw rod well system based on gas-liquid two-phase driving |
| CN111664611A (en) * | 2020-05-06 | 2020-09-15 | 杭州电子科技大学 | Refrigeration cycle device for cooling oil exploitation drilling tool |
| CN111706290A (en) * | 2019-03-18 | 2020-09-25 | 中石化石油工程技术服务有限公司 | Diameter-variable plugging shunt |
| CN113250617A (en) * | 2021-06-28 | 2021-08-13 | 中国石油大学(北京) | Multi-gradient pressure control drilling system |
-
2017
- 2017-12-01 CN CN201721646626.5U patent/CN208152966U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869105A (en) * | 2017-12-01 | 2019-06-11 | 中石化石油工程技术服务有限公司 | A kind of well system and its boring method |
| CN109869105B (en) * | 2017-12-01 | 2023-07-21 | 中石化石油工程技术服务有限公司 | Drilling system and drilling method thereof |
| CN111706290A (en) * | 2019-03-18 | 2020-09-25 | 中石化石油工程技术服务有限公司 | Diameter-variable plugging shunt |
| CN110344752A (en) * | 2019-07-10 | 2019-10-18 | 西南石油大学 | Double-walled screw rod well system based on gas-liquid two-phase driving |
| CN111664611A (en) * | 2020-05-06 | 2020-09-15 | 杭州电子科技大学 | Refrigeration cycle device for cooling oil exploitation drilling tool |
| CN111664611B (en) * | 2020-05-06 | 2023-05-09 | 杭州电子科技大学 | Refrigerating cycle device for cooling petroleum exploitation drilling tool |
| CN113250617A (en) * | 2021-06-28 | 2021-08-13 | 中国石油大学(北京) | Multi-gradient pressure control drilling system |
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