CN109538154A - A kind of well-control equipment for high-pressure reservoir nitrogen injection drilling - Google Patents
A kind of well-control equipment for high-pressure reservoir nitrogen injection drilling Download PDFInfo
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- CN109538154A CN109538154A CN201811556152.4A CN201811556152A CN109538154A CN 109538154 A CN109538154 A CN 109538154A CN 201811556152 A CN201811556152 A CN 201811556152A CN 109538154 A CN109538154 A CN 109538154A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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 DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B21/16—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using gaseous fluids
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
- E21B33/061—Ram-type blow-out preventers, e.g. with pivoting rams
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/005—Waste disposal systems
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
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- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of well-control equipments for high-pressure reservoir nitrogen injection drilling, belong to drilling engineering technical field, including manifold of ground device, it is characterised in that: further include wellhead blowout preventer and urgent closing well linkage；Wellhead blowout preventer includes drilling spool, double ram type preventer, big orifice Multifunctional cross, single ram type perventer, annular preventer and swivel control head；Urgent closing well linkage includes PLC Main Control Tank, driller's emergency button box and igniter, and driller's emergency button box is electrically connected with PLC Main Control Tank, and PLC Main Control Tank is connect with wellhead blowout preventer and igniter respectively.Present invention introduces well head big orifice Multifunctional cross to change sediment outflow open flow mode, it is additionally arranged urgent closing well linkage, upgrade mating manifold of ground and control gate valve, can be realized well head quickly control, multichannel open flow and gate valve remote control, meet the needs of high-pressure reservoir nitrogen injection drilling well control safety.
Description
Technical field
The present invention relates to drilling engineering technical fields more particularly to a kind of well control for high-pressure reservoir nitrogen injection drilling to set
It is standby.
Background technique
High-pressure reservoir usually has the feature for burying that depth, pressure are high, yield is high.Nitrogen injection drilling is boring the unexpected high pressure high yield of chance
When natural gas flow, stronger to land equipment generation it will can wash away, stronger Under Dynamic Load is in land equipment.Thus high-pressure reservoir
Nitrogen injection drilling ground well control equipment should have the flexible feature of firm, Anti-erosion, gate valve switch, realize the timely of well head control
Property, validity, it is ensured that nitrogen injection drilling well control safety.
It is currently used for low pressure reservoir nitrogen injection drilling well control technique and still mainly continues to use drilling fluid drilling well control matching equipment technology,
That is wellhead blowout preventor group, department's control platform, controlling box, remotely control room, choke manifold, kill manifold, blowout prevention pipeline and relief line,
Sediment outflow pipeline is picked out from wellhead blowout preventor group rotary-top control head side outlet, and sediment outflow pipeline uses 7MPa- φ in well site
244.5mm flanged joint uses 4MPa- φ 254mm clamp connection to combustion cell outside well site；Closing well open flow mode is in driller station
Or remote console is implemented to close preventer, opens open flow valve, passes through two relief line open flows；Sparking mode is outlet setting
Ever-burning flame is lighted a fire using magic bullet.It has the following deficiencies:
1, well head can not be quickly controlled, when brill chance high pressure high producing natural gas, needs to complete official seal spray apparatus, open spray
The a series of actions such as valve, outlet igniting, are unable to reach the purpose of quickly control well head；
2, open flow channel is only the relief line of two diameter phi 72mm, and caliber is small, drainage area is insufficient；
3, the sediment outflow pipeline pressure-bearing being equipped with is low, and installation is hanging high, is unfavorable for installation and fixes, and receiving switch power amplifie is weak, does not have
Standby open flow ability；
4, manifold of ground gate valve is mostly manual switch, and under the conditions of high pressure high producing natural gas, gate valve switch is not flexible, people
Member's operational risk is big.
Therefore, existing nitrogen injection drilling well control equipment matching technology is not applied for the need of high pressure high yield reservoir nitrogen injection drilling
It wants, there are many limitations.
Publication No. CN 203176725U, publication date are that on 09 04th, 2013 Chinese patent literature discloses one kind
The nitrogen back-up system of control system of ground preventer, the system provide high pressure gas conduct for control system of ground preventer and answer
Anxious power source, including high-pressure nitrogen bottle, valve, associated pipe, it is characterised in that: the associated pipe of the nitrogen back-up system is extremely
It less include first group of pipeline, second group of pipeline, third group pipeline, the 4th group of pipeline, first group of pipe of the nitrogen back-up system
Road has been sequentially arranged nitrogen pressure reducing valve, nitrogen cylinder valve, high-pressure nitrogen bottle, and the nitrogen pressure reducing valve passes through external hose and ground
The driller's console of blowout preventing control apparatus or the air inlet of auxiliary console are connected.
The nitrogen back-up system of control system of ground preventer disclosed in the patent document, although can occur tightly when scene
When anxious situation needs rapid closing well, provide emergency auxiliary energy for the control manifold of control system of ground preventer, avoid due to
The accumulator group or pump group of control system of ground preventer cannot be the gas blowout accident that control manifold provides power fluid and causes.But
It is that can not achieve multichannel open flow and gate valve remote control, is unable to effective guarantee high-pressure reservoir nitrogen injection drilling well control safety.
Summary of the invention
The present invention in order to overcome the defects of the prior art described above, provides a kind of well control for high-pressure reservoir nitrogen injection drilling and sets
Standby, present invention introduces well head big orifice Multifunctional cross to change sediment outflow open flow mode, is additionally arranged urgent closing well linkage, upgrades
Mating manifold of ground and control gate valve, can be realized well head quickly control, multichannel open flow and gate valve remote control, meet high pressure
The needs of reservoir nitrogen injection drilling well control safety.
The present invention is achieved through the following technical solutions:
A kind of well-control equipment for high-pressure reservoir nitrogen injection drilling, including manifold of ground device, wellhead blowout preventer and tight
Anxious closing well linkage, it is characterised in that:
The manifold of ground device includes the first big orifice sediment outflow relief line, the second big orifice sediment outflow relief line, the
One blowout prevention pipeline, kill manifold, the first relief line, the second blowout prevention pipeline, choke manifold and the second relief line；
The wellhead blowout preventer successively includes drilling spool, double ram type preventer, big orifice multi-functional four from top to bottom
Logical, single ram type perventer, annular preventer and swivel control head, the lower end of the big orifice Multifunctional cross and double disc blowout prevention
Device connection, the upper end of big orifice Multifunctional cross are connect with single ram type perventer, and the left end of big orifice Multifunctional cross is connected with
First liquid-operated flat valve and the second liquid-operated flat valve, the right end of big orifice Multifunctional cross are connected with third liquid-operated flat valve and
Four liquid-operated flat valves, first liquid-operated flat valve are connect with the first big orifice sediment outflow relief line, the 4th liquid-operated flat valve with
The connection of second big orifice sediment outflow relief line, the double ram type preventer connect with drilling spool, the single ram type perventer and
Annular preventer connection, annular preventer are connect with swivel control head；The left end of the drilling spool is connected with the first hydraulic brake
Valve and the second hydraulic valve, the right end of drilling spool are connected with third hydraulic valve and the 4th hydraulic valve, and described first surges
Gate valve is connect with the first blowout prevention pipeline, and the first blowout prevention pipeline is connect with kill manifold, and kill manifold is connect with the first relief line,
4th hydraulic valve is connect with the second blowout prevention pipeline, the second blowout prevention pipeline is connect with choke manifold, choke manifold and second
Relief line connection；
The urgent closing well linkage includes PLC Main Control Tank, driller's emergency button box and igniter, driller's emergency button
Box is electrically connected with PLC Main Control Tank, and PLC Main Control Tank is connect with wellhead blowout preventer and igniter respectively.
Driller's emergency button box is closed in case of emergency being issued by emergency operation button to PLC Main Control Tank
Well instruction, starts a key closing well program.
The igniter is four, and four igniters are separately fixed at the first big orifice sediment outflow relief line, second largest logical
The end of diameter sediment outflow relief line, the first relief line and the second relief line.
The wall thickness of the first big orifice sediment outflow relief line and the second big orifice sediment outflow relief line is 12mm, caliber
It is 245mm, pressure rank is 10MP.
The pressure of first liquid-operated flat valve, the second liquid-operated flat valve, third liquid-operated flat valve and the 4th liquid-operated flat valve
Power rank is 105MPa.
The caliber of the big orifice Multifunctional cross is 180mm, and pressure rank is 105Mpa.
The first big orifice sediment outflow relief line, the second big orifice sediment outflow relief line, the first relief line and second
Combustion cell is respectively connected on relief line.
Driller's emergency button box, for controlling igniting, opening open flow valve and closing the teamwork of annular preventer.
Beneficial effects of the present invention are mainly manifested in following aspect:
1, of the invention, the wellhead blowout preventer of use can satisfy closing well needs under different working conditions.Blowout preventer dress
Middle outfit double ram type preventer, single ram type perventer and annular preventer are set, and in single ram type perventer and double ram type preventer
Between joined big orifice Multifunctional cross；Annular preventer is series at urgent closing well linkage, in case of emergency realizes
Well head quickly controls；Single ram type perventer is closed, igniting open flow is realized, increases drainage area, meet high producing natural gas open flow need
It wants；Double ram type preventer is closed, just can be carried out sand washing, replacement or maintenance activity；Compared with the prior art, well head big orifice is introduced
Multifunctional cross changes sediment outflow open flow mode, is additionally arranged urgent closing well linkage, upgrades mating manifold of ground and control gate valve,
Can be realized well head quickly control, multichannel open flow and gate valve remote control, meet high-pressure reservoir nitrogen injection drilling well control safety
It needs.
2, of the invention, big orifice Multifunctional cross and big orifice sediment outflow relief line are used, completely new sediment outflow is established
Open flow mode has drilling sediment outflow and closing well open flow function；And big orifice Multifunctional cross is mounted on double ram type preventer and list
Between ram preventer, big orifice sediment outflow relief line is connected to combustion cell, compared with traditional drain pipe line mounting means, substantially
Pipeline overhead height is reduced, is conducive to pipeline and installs, it is more firm.
3, of the invention, using the first hydraulic valve, the second hydraulic valve, third hydraulic valve and the 4th hydraulic valve, section
On flow tube is converged, on kill manifold and the first liquid-operated flat valve of big orifice Multifunctional cross two sides, the second liquid-operated flat valve, third
Liquid-operated flat valve and the 4th liquid-operated flat valve, are controlled by PLC Main Control Tank, can remote control realize that different operating condition lower channels are cut
Safety operation when changing.
4, of the invention, igniter is four, and four igniters are separately fixed at the first big orifice sediment outflow relief line, second
The end of big orifice sediment outflow relief line, the first relief line and the second relief line passes through the first big orifice sediment outflow blooie pipe
Line, the second big orifice sediment outflow relief line, the first relief line and the second relief line open flow, realize four-way open flow, pole
Big increases open flow drainage area, has been obviously improved the safety of reservoir nitrogen injection drilling well control.
5, of the invention, the wall thickness of the first big orifice sediment outflow relief line and the second big orifice sediment outflow relief line is
12mm, caliber are 245mm, and pressure rank is 10MP；First liquid-operated flat valve, the second liquid-operated flat valve, third are surged flat
The pressure rank of plate valve and the 4th liquid-operated flat valve is 105MPa；The caliber of big orifice Multifunctional cross is 180mm, pressure stage
Not Wei 105Mpa, can satisfy the well control requirement in most of the country area, universality is strong.
6, of the invention, the urgent closing well linkage of use has one-touch closing well function under emergency, quickly controls
Well head is realized and closes annular preventer-opening open flow valve-automatic ignition movement linkage, it is ensured that well control is pacified under contingency condition
Entirely；Second hydraulic valve, third hydraulic valve, annular preventer and igniter are controlled by PLC Main Control Tank, PLC Main Control Tank is logical
Output order control on-off is crossed, realizes and closes annular preventer, open the function of open flow valve；Relay is controlled by output order
It connects igniter current supply circuit and controls automatic ignition；Entire key emergency closing well process is to control program form write-in PLC master control
Case executes automatically after the wired starting emergency closing well button of operator, does not need human intervention, substantially increase disposition nitrogen
The respond of drilling well emergency.
Detailed description of the invention
The present invention is described in further detail below in conjunction with specification drawings and specific embodiments, in which:
Fig. 1 is the structural diagram of the present invention；
Marked in the figure: the 1, first big orifice sediment outflow relief line, the 2, second big orifice sediment outflow relief line, the 3, first blowout prevention
Pipeline, 4, kill manifold, the 5, first relief line, the 6, second blowout prevention pipeline, 7, choke manifold, the 8, second relief line, 9, brill
Well four-way, 10, double ram type preventer, 11, big orifice Multifunctional cross, 12, single ram type perventer, 13, annular preventer, 14,
Swivel control head, the 15, first liquid-operated flat valve, the 16, second liquid-operated flat valve, 17, third liquid-operated flat valve, the 18, the 4th surges
Flap type, the 19, first hydraulic valve, the 20, second hydraulic valve, 21, third hydraulic valve, the 22, the 4th hydraulic valve, 23, PLC
Main Control Tank, 24, driller's emergency button box, 25, igniter, 26, combustion cell.
Specific embodiment
Embodiment 1
A kind of well-control equipment for high-pressure reservoir nitrogen injection drilling, including manifold of ground device further include blowout preventer dress
It sets and urgent closing well linkage；
The manifold of ground device include the first big orifice sediment outflow relief line 1, the second big orifice sediment outflow relief line 2,
First blowout prevention pipeline 3, kill manifold 4, the first relief line 5, the second blowout prevention pipeline 6, choke manifold 7 and the second relief line 8；
The wellhead blowout preventer is successively multi-functional including drilling spool 9, double ram type preventer 10, big orifice from top to bottom
Four-way 11, single ram type perventer 12, annular preventer 13 and swivel control head 14, the lower end of the big orifice Multifunctional cross 11
It is connect with double ram type preventer 10, the upper end of big orifice Multifunctional cross 11 is connect with single ram type perventer 12, the more function of big orifice
The left end of energy four-way 11 is connected with the first liquid-operated flat valve 15 and the second liquid-operated flat valve 16, the right side of big orifice Multifunctional cross 11
End is connected with third liquid-operated flat valve 17 and the 4th liquid-operated flat valve 18, and first liquid-operated flat valve 15 and the first big orifice are arranged
Sand relief line 1 connects, and the 4th liquid-operated flat valve 18 is connect with the second big orifice sediment outflow relief line 2, the double disc blowout prevention
Device 10 is connect with drilling spool 9, and the single ram type perventer 12 is connect with annular preventer 13, and annular preventer 13 and rotation are controlled
Head 14 processed connects；The left end of the drilling spool 9 is connected with the first hydraulic valve 19 and the second hydraulic valve 20, drilling spool 9
Right end be connected with third hydraulic valve 21 and the 4th hydraulic valve 22, first hydraulic valve 19 and the first blowout prevention pipeline 3
Connection, the first blowout prevention pipeline 3 are connect with kill manifold 4, and kill manifold 4 is connect with the first relief line 5, the 4th hydraulic brake
Valve 22 is connect with the second blowout prevention pipeline 6, the second blowout prevention pipeline 6 is connect with choke manifold 7, choke manifold 7 and the second relief line 8
Connection；
The urgent closing well linkage includes PLC Main Control Tank 23, driller's emergency button box 24 and igniter 25, Si Zuanying
Anxious button box 24 is electrically connected with PLC Main Control Tank 23, and PLC Main Control Tank 23 is connect with wellhead blowout preventer and igniter 25 respectively.
The present embodiment is most basic embodiment, and the wellhead blowout preventer of use can satisfy different working condition ShiShimonoseki
Well needs.Double ram type preventer, single ram type perventer and annular preventer are equipped in wellhead blowout preventer, and in single disc blowout prevention
It joined big orifice Multifunctional cross between device and double ram type preventer；Annular preventer is series at urgent closing well linkage,
In case of emergency realize that well head quickly controls；Single ram type perventer is closed, igniting open flow is realized, increases drainage area, meet
High producing natural gas open flow needs；Double ram type preventer is closed, just can be carried out sand washing, replacement or maintenance activity；Compared with the prior art
Speech introduces well head big orifice Multifunctional cross and changes sediment outflow open flow mode, is additionally arranged urgent closing well linkage, upgrading is matingly
Facial canal converges and control gate valve, can be realized well head quickly control, multichannel open flow and gate valve remote control, meet high-pressure reservoir nitrogen
The needs of pneumatic drill well well control safety.
Embodiment 2
A kind of well-control equipment for high-pressure reservoir nitrogen injection drilling, including manifold of ground device further include blowout preventer dress
It sets and urgent closing well linkage；
The manifold of ground device include the first big orifice sediment outflow relief line 1, the second big orifice sediment outflow relief line 2,
First blowout prevention pipeline 3, kill manifold 4, the first relief line 5, the second blowout prevention pipeline 6, choke manifold 7 and the second relief line 8；
The wellhead blowout preventer is successively multi-functional including drilling spool 9, double ram type preventer 10, big orifice from top to bottom
Four-way 11, single ram type perventer 12, annular preventer 13 and swivel control head 14, the lower end of the big orifice Multifunctional cross 11
It is connect with double ram type preventer 10, the upper end of big orifice Multifunctional cross 11 is connect with single ram type perventer 12, the more function of big orifice
The left end of energy four-way 11 is connected with the first liquid-operated flat valve 15 and the second liquid-operated flat valve 16, the right side of big orifice Multifunctional cross 11
End is connected with third liquid-operated flat valve 17 and the 4th liquid-operated flat valve 18, and first liquid-operated flat valve 15 and the first big orifice are arranged
Sand relief line 1 connects, and the 4th liquid-operated flat valve 18 is connect with the second big orifice sediment outflow relief line 2, the double disc blowout prevention
Device 10 is connect with drilling spool 9, and the single ram type perventer 12 is connect with annular preventer 13, and annular preventer 13 and rotation are controlled
Head 14 processed connects；The left end of the drilling spool 9 is connected with the first hydraulic valve 19 and the second hydraulic valve 20, drilling spool 9
Right end be connected with third hydraulic valve 21 and the 4th hydraulic valve 22, first hydraulic valve 19 and the first blowout prevention pipeline 3
Connection, the first blowout prevention pipeline 3 are connect with kill manifold 4, and kill manifold 4 is connect with the first relief line 5, the 4th hydraulic brake
Valve 22 is connect with the second blowout prevention pipeline 6, the second blowout prevention pipeline 6 is connect with choke manifold 7, choke manifold 7 and the second relief line 8
Connection；
The urgent closing well linkage includes PLC Main Control Tank 23, driller's emergency button box 24 and igniter 25, Si Zuanying
Anxious button box 24 is electrically connected with PLC Main Control Tank 23, and PLC Main Control Tank 23 is connect with wellhead blowout preventer and igniter 25 respectively.
Driller's emergency button box 24, in case of emergency being sent out by emergency operation button to PLC Main Control Tank 23
Closing well instructs out, starts a key closing well program.
The igniter 25 is four, and four igniters 25 are separately fixed at the first big orifice sediment outflow relief line 1, second
The end of big orifice sediment outflow relief line 2, the first relief line 5 and the second relief line 8.
The present embodiment is a better embodiment, uses big orifice Multifunctional cross and big orifice sediment outflow relief line,
Completely new sediment outflow open flow mode is established, has drilling sediment outflow and closing well open flow function；And big orifice Multifunctional cross is mounted on
Between double ram type preventer and single ram type perventer, big orifice sediment outflow relief line is connected to combustion cell, with tradition drain pipe line
Mounting means is compared, and pipeline overhead height is greatly reduced, and is conducive to pipeline and is installed, more firm.Using the first hydraulic valve, second
Hydraulic valve, third hydraulic valve and the 4th hydraulic valve, on choke manifold, on kill manifold and big orifice Multifunctional cross two
The first liquid-operated flat valve, the second liquid-operated flat valve, third liquid-operated flat valve and the 4th liquid-operated flat valve of side, pass through PLC master control
Case control, can remote control realize different operating condition lower channels switching when safety operation.
Embodiment 3
A kind of well-control equipment for high-pressure reservoir nitrogen injection drilling, including manifold of ground device further include blowout preventer dress
It sets and urgent closing well linkage；
The manifold of ground device include the first big orifice sediment outflow relief line 1, the second big orifice sediment outflow relief line 2,
First blowout prevention pipeline 3, kill manifold 4, the first relief line 5, the second blowout prevention pipeline 6, choke manifold 7 and the second relief line 8；
The wellhead blowout preventer is successively multi-functional including drilling spool 9, double ram type preventer 10, big orifice from top to bottom
Four-way 11, single ram type perventer 12, annular preventer 13 and swivel control head 14, the lower end of the big orifice Multifunctional cross 11
It is connect with double ram type preventer 10, the upper end of big orifice Multifunctional cross 11 is connect with single ram type perventer 12, the more function of big orifice
The left end of energy four-way 11 is connected with the first liquid-operated flat valve 15 and the second liquid-operated flat valve 16, the right side of big orifice Multifunctional cross 11
End is connected with third liquid-operated flat valve 17 and the 4th liquid-operated flat valve 18, and first liquid-operated flat valve 15 and the first big orifice are arranged
Sand relief line 1 connects, and the 4th liquid-operated flat valve 18 is connect with the second big orifice sediment outflow relief line 2, the double disc blowout prevention
Device 10 is connect with drilling spool 9, and the single ram type perventer 12 is connect with annular preventer 13, and annular preventer 13 and rotation are controlled
Head 14 processed connects；The left end of the drilling spool 9 is connected with the first hydraulic valve 19 and the second hydraulic valve 20, drilling spool 9
Right end be connected with third hydraulic valve 21 and the 4th hydraulic valve 22, first hydraulic valve 19 and the first blowout prevention pipeline 3
Connection, the first blowout prevention pipeline 3 are connect with kill manifold 4, and kill manifold 4 is connect with the first relief line 5, the 4th hydraulic brake
Valve 22 is connect with the second blowout prevention pipeline 6, the second blowout prevention pipeline 6 is connect with choke manifold 7, choke manifold 7 and the second relief line 8
Connection；
The urgent closing well linkage includes PLC Main Control Tank 23, driller's emergency button box 24 and igniter 25, Si Zuanying
Anxious button box 24 is electrically connected with PLC Main Control Tank 23, and PLC Main Control Tank 23 is connect with wellhead blowout preventer and igniter 25 respectively.
Driller's emergency button box 24, in case of emergency being sent out by emergency operation button to PLC Main Control Tank 23
Closing well instructs out, starts a key closing well program.
The igniter 25 is four, and four igniters 25 are separately fixed at the first big orifice sediment outflow relief line 1, second
The end of big orifice sediment outflow relief line 2, the first relief line 5 and the second relief line 8.
The wall thickness of the first big orifice sediment outflow relief line 1 and the second big orifice sediment outflow relief line 2 is 12mm, pipe
Diameter is 245mm, and pressure rank is 10MP.
First liquid-operated flat valve 15, the second liquid-operated flat valve 16, third liquid-operated flat valve 17 and the 4th are surged plate
The pressure rank of valve 18 is 105MPa.
The caliber of the big orifice Multifunctional cross 11 is 180mm, and pressure rank is 105Mpa.
The present embodiment is another better embodiment, and igniter is four, and it is big logical that four igniters are separately fixed at first
The end of diameter sediment outflow relief line, the second big orifice sediment outflow relief line, the first relief line and the second relief line passes through
One big orifice sediment outflow relief line, the second big orifice sediment outflow relief line, the first relief line and the second relief line open flow, it is real
Show four-way open flow, greatly increased open flow drainage area, is obviously improved the safety of reservoir nitrogen injection drilling well control.
The wall thickness of first big orifice sediment outflow relief line and the second big orifice sediment outflow relief line is 12mm, and caliber is
245mm, pressure rank are 10MP；First liquid-operated flat valve, the second liquid-operated flat valve, third liquid-operated flat valve and the 4th surge
The pressure rank of flap type is 105MPa；The caliber of big orifice Multifunctional cross is 180mm, and pressure rank is 105Mpa, energy
Enough meet the well control requirement in most of the country area, universality is strong.
Embodiment 4
A kind of well-control equipment for high-pressure reservoir nitrogen injection drilling, including manifold of ground device further include blowout preventer dress
It sets and urgent closing well linkage；
The manifold of ground device include the first big orifice sediment outflow relief line 1, the second big orifice sediment outflow relief line 2,
First blowout prevention pipeline 3, kill manifold 4, the first relief line 5, the second blowout prevention pipeline 6, choke manifold 7 and the second relief line 8；
The wellhead blowout preventer is successively multi-functional including drilling spool 9, double ram type preventer 10, big orifice from top to bottom
Four-way 11, single ram type perventer 12, annular preventer 13 and swivel control head 14, the lower end of the big orifice Multifunctional cross 11
It is connect with double ram type preventer 10, the upper end of big orifice Multifunctional cross 11 is connect with single ram type perventer 12, the more function of big orifice
The left end of energy four-way 11 is connected with the first liquid-operated flat valve 15 and the second liquid-operated flat valve 16, the right side of big orifice Multifunctional cross 11
End is connected with third liquid-operated flat valve 17 and the 4th liquid-operated flat valve 18, and first liquid-operated flat valve 15 and the first big orifice are arranged
Sand relief line 1 connects, and the 4th liquid-operated flat valve 18 is connect with the second big orifice sediment outflow relief line 2, the double disc blowout prevention
Device 10 is connect with drilling spool 9, and the single ram type perventer 12 is connect with annular preventer 13, and annular preventer 13 and rotation are controlled
Head 14 processed connects；The left end of the drilling spool 9 is connected with the first hydraulic valve 19 and the second hydraulic valve 20, drilling spool 9
Right end be connected with third hydraulic valve 21 and the 4th hydraulic valve 22, first hydraulic valve 19 and the first blowout prevention pipeline 3
Connection, the first blowout prevention pipeline 3 are connect with kill manifold 4, and kill manifold 4 is connect with the first relief line 5, the 4th hydraulic brake
Valve 22 is connect with the second blowout prevention pipeline 6, the second blowout prevention pipeline 6 is connect with choke manifold 7, choke manifold 7 and the second relief line 8
Connection；
The urgent closing well linkage includes PLC Main Control Tank 23, driller's emergency button box 24 and igniter 25, Si Zuanying
Anxious button box 24 is electrically connected with PLC Main Control Tank 23, and PLC Main Control Tank 23 is connect with wellhead blowout preventer and igniter 25 respectively.
Driller's emergency button box 24, in case of emergency being sent out by emergency operation button to PLC Main Control Tank 23
Closing well instructs out, starts a key closing well program.
The igniter 25 is four, and four igniters 25 are separately fixed at the first big orifice sediment outflow relief line 1, second
The end of big orifice sediment outflow relief line 2, the first relief line 5 and the second relief line 8.
The wall thickness of the first big orifice sediment outflow relief line 1 and the second big orifice sediment outflow relief line 2 is 12mm, pipe
Diameter is 245mm, and pressure rank is 10MP.
First liquid-operated flat valve 15, the second liquid-operated flat valve 16, third liquid-operated flat valve 17 and the 4th are surged plate
The pressure rank of valve 18 is 105MPa.
The caliber of the big orifice Multifunctional cross 11 is 180mm, and pressure rank is 105Mpa.
The first big orifice sediment outflow relief line 1, the second big orifice sediment outflow relief line 2, the first relief line 5 and
Combustion cell 26 is respectively connected on two relief lines 8.
Driller's emergency button box 24, the joint for controlling igniting, opening open flow and close annular preventer 13 are dynamic
Make.
The present embodiment is preferred forms, and the wellhead blowout preventer of use can satisfy closing well under different working conditions and need
It wants.Be equipped with double ram type preventer, single ram type perventer and annular preventer in wellhead blowout preventer, and in single ram type perventer and
It joined big orifice Multifunctional cross between double ram type preventer；Annular preventer is series at urgent closing well linkage, tight
Realize that well head quickly controls in anxious situation；Single ram type perventer is closed, igniting open flow is realized, increases drainage area, meet high yield
Natural gas open flow needs；Double ram type preventer is closed, just can be carried out sand washing, replacement or maintenance activity；Compared with the prior art, draw
Enter well head big orifice Multifunctional cross and change sediment outflow open flow mode, is additionally arranged urgent closing well linkage, upgrades mating ground line
Converge and control gate valve, can be realized well head quickly control, multichannel open flow and gate valve remote control, meet high-pressure reservoir nitrogen and bore
The needs of well well control safety.The urgent closing well linkage used, has one-touch closing well function under emergency, quickly controls
Well head realizes automatic ignition-opening open flow-closing annular preventer movement linkage, it is ensured that well control safety under contingency condition；
Second hydraulic valve, third hydraulic valve, annular preventer and igniter are controlled by PLC Main Control Tank, PLC Main Control Tank passes through defeated
Instruction control on-off out, realizes and closes annular preventer, opens the function of open flow valve；Relay is controlled by output order to connect
Igniter current supply circuit controls automatic ignition；PLC Main Control Tank is written to control program form in entire key emergency closing well process,
It is executed automatically after the wired starting emergency closing well button of operator, does not need human intervention, substantially increase disposition nitrogen injection drilling
The respond of emergency.
Claims (8)
1. a kind of well-control equipment for high-pressure reservoir nitrogen injection drilling, including manifold of ground device, it is characterised in that: further include well
Mouth blowout hookup and urgent closing well linkage；
The manifold of ground device include the first big orifice sediment outflow relief line (1), the second big orifice sediment outflow relief line (2),
First blowout prevention pipeline (3), kill manifold (4), the first relief line (5), the second blowout prevention pipeline (6), choke manifold (7) and second
Relief line (8)；
The wellhead blowout preventer is successively multi-functional including drilling spool (9), double ram type preventer (10), big orifice from top to bottom
Four-way (11), single ram type perventer (12), annular preventer (13) and swivel control head (14), the big orifice Multifunctional cross
(11) lower end is connect with double ram type preventer (10), the upper end and single ram type perventer (12) of big orifice Multifunctional cross (11)
Connection, the left end of big orifice Multifunctional cross (11) are connected with the first liquid-operated flat valve (15) and the second liquid-operated flat valve (16),
The right end of big orifice Multifunctional cross (11) is connected with third liquid-operated flat valve (17) and the 4th liquid-operated flat valve (18), and described
One liquid-operated flat valve (15) is connect with the first big orifice sediment outflow relief line (1), and the 4th liquid-operated flat valve (18) leads to second largest
Diameter sediment outflow relief line (2) connection, the double ram type preventer (10) connect with drilling spool (9), the single ram type perventer
(12) it is connect with annular preventer (13), annular preventer (13) is connect with swivel control head (14)；The drilling spool (9)
Left end is connected with the first hydraulic valve (19) and the second hydraulic valve (20), and the right end of drilling spool (9) is connected with third and surges
Gate valve (21) and the 4th hydraulic valve (22), first hydraulic valve (19) connect with the first blowout prevention pipeline (3), the first blowout prevention
Pipeline (3) is connect with kill manifold (4), and kill manifold (4) is connect with the first relief line (5), the 4th hydraulic valve
(22) it is connect with the second blowout prevention pipeline (6), the second blowout prevention pipeline (6) is connect with choke manifold (7), choke manifold (7) and second
Relief line (8) connection；
The urgent closing well linkage includes PLC Main Control Tank (23), driller's emergency button box (24) and igniter (25), driller
Emergency button box (24) is electrically connected with PLC Main Control Tank (23), PLC Main Control Tank (23) respectively with wellhead blowout preventer and igniter
(25) it connects.
2. a kind of well-control equipment for high-pressure reservoir nitrogen injection drilling according to claim 1, it is characterised in that: the department
It bores emergency button box (24), in case of emergency issuing closing well instruction to PLC Main Control Tank (23) by emergency operation button,
Start a key closing well program.
3. a kind of well-control equipment for high-pressure reservoir nitrogen injection drilling according to claim 1, it is characterised in that: the point
Firearm (25) is four, and four igniters (25) are separately fixed at the first big orifice sediment outflow relief line (1), the second big orifice row
The end of sand relief line (2), the first relief line (5) and the second relief line (8).
4. a kind of well-control equipment for high-pressure reservoir nitrogen injection drilling according to claim 1, it is characterised in that: described
The wall thickness of one big orifice sediment outflow relief line (1) and the second big orifice sediment outflow relief line (2) is 12mm, and caliber is
245mm, pressure rank are 10MP.
5. a kind of well-control equipment for high-pressure reservoir nitrogen injection drilling according to claim 1, it is characterised in that: described
One liquid-operated flat valve (15), the second liquid-operated flat valve (16), third liquid-operated flat valve (17) and the 4th liquid-operated flat valve (18)
Pressure rank is 105MPa.
6. a kind of well-control equipment for high-pressure reservoir nitrogen injection drilling according to claim 1, it is characterised in that: described big
The caliber of latus rectum Multifunctional cross (11) is 180mm, and pressure rank is 105Mpa.
7. a kind of well-control equipment for high-pressure reservoir nitrogen injection drilling according to claim 1, it is characterised in that: described
One big orifice sediment outflow relief line (1), the second big orifice sediment outflow relief line (2), the first relief line (5) and the second blooie pipe
Combustion cell (26) are respectively connected on line (8).
8. a kind of well-control equipment for high-pressure reservoir nitrogen injection drilling according to claim 1, it is characterised in that: the department
It bores emergency button box (24), for controlling igniting, opening open flow and closing the teamwork of annular preventer (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811556152.4A CN109538154A (en) | 2018-12-19 | 2018-12-19 | A kind of well-control equipment for high-pressure reservoir nitrogen injection drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811556152.4A CN109538154A (en) | 2018-12-19 | 2018-12-19 | A kind of well-control equipment for high-pressure reservoir nitrogen injection drilling |
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|---|---|
| CN109538154A true CN109538154A (en) | 2019-03-29 |
Family
ID=65855465
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811556152.4A Pending CN109538154A (en) | 2018-12-19 | 2018-12-19 | A kind of well-control equipment for high-pressure reservoir nitrogen injection drilling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112878946A (en) * | 2021-01-27 | 2021-06-01 | 中国海洋石油集团有限公司 | Underwater blowout preventer system for well killing of deep water relief well and well killing method |
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| CN112878946A (en) * | 2021-01-27 | 2021-06-01 | 中国海洋石油集团有限公司 | Underwater blowout preventer system for well killing of deep water relief well and well killing method |
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Application publication date: 20190329 |