CN105178897B - A kind of gas drilling manifold of ground attachment structure - Google Patents
A kind of gas drilling manifold of ground attachment structure Download PDFInfo
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- CN105178897B CN105178897B CN201510652804.4A CN201510652804A CN105178897B CN 105178897 B CN105178897 B CN 105178897B CN 201510652804 A CN201510652804 A CN 201510652804A CN 105178897 B CN105178897 B CN 105178897B
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Abstract
The invention discloses a kind of gas drilling manifold of ground attachment structure, including：Air injection unit, pressure release unit, flowmeter, ground injecting gas manifold, high-pressure gas injection flexible pipe, erosion resistance gooseneck, high pressure reacting cycle sediment outflow flexible pipe, ground reacting cycle sediment outflow pipeline and direct circulation gas drilling sediment outflow pipeline, this manifold of ground attachment structure is applied in the self-priming reacting cycle gas drilling system of full well section, conventional single wall drilling tool is not needed, the participation of the instruments such as mixing wastewater with air joint, full well section is used as circulatory mediator by the use of air, reacting cycle can also be formed by not needing the participation of mud or other drilling fluids, be particularly suitable for use in serious water shortage, leakage is serious or can not implement the well section of gas lift reverse circulation.
Description
Technical field
The present invention relates to oil and gas well drilling technical field, specifically relates to a kind of gas drilling manifold of ground connection
Structure.
Background technology
Air drilling can greatly improve the power auger of the bad grounds such as volcanic rock, gravel layer, clastic rock, carbonate rock
Speed, applied in the area such as Chongqing of Sichuan, average drilling speed improves 4~15 times.But during using direct circulation gas drilling（Particularly major diameter
Well）, equipment investment is big, occupation of land is more, air consumption is big, operation energy consumption is high, cost is high, such as in 26 " wells（500m）Gas drilling institute
Air demand 500m3/ more than min, 17 1/2 " well institute air demand 300m3/min；It is poor in borehole wall stability, or formation water production
In the case of larger, increase tolerance progress gas drilling exacerbates the erosion to the borehole wall, increases borehole well instability possibility；Together
When, the ability of processing formation water output problem is poor, if simultaneously layer cranny development（I.e. leakage is lost and returned and a large amount of water outlets in stratum）,
Then it is difficult to establish normal circulation, even if using air-filling well-drilling, also easily there is the situation of leak not sand leakage, it is difficult to ensure that underground is pacified
Entirely；The application that these problems align recyclegas drilling well brings many restrictions.
A kind of boring method of existing gas lift reverse circulation, such as Publication No. CN101929309A, publication date is 2010 12
The Chinese patent literature on the moon 29 discloses a kind of gas lift reverse circulation drilling process, and its processing step is：1. first unload double-walled side
Drilling rod fills liquid into core pipe, has then reinstalled double-walled kelly bar, 2. closes the high pressure valve in scum pipe exit, opens
Dynamic air compressor machine supply, 3. when admission pressure rises to 5.5-6MPa, then the rapid high pressure valve for opening scum pipe exit.It is
It is a kind of not have to all extract the gas lift reverse circulation drilling process that all drilling tools enter hydrophthalmia blocking with regard to that solve drill bit.
Use prior art of the above-mentioned patent document for representative, during concrete application, this method is will be a small amount of（Such as 3 ~ 5m3/
min）Gas mixing wastewater with air joint in well is in liquid in drill string and mixed, poor using the inside and outside drilling fluid density of drill string, realizes
The reverse circulating boring method of drilling fluid.Although this method is lost in saving tolerance, saving equipment usage amount and leakage and returned substantially
Effect, but must be circulated using mud.Therefore it is serious in formation leakage（Such as solution cavity）, in well mud liquid level it is too low or
In well in the case of water shortage, gas lift reverse circulation can not be implemented.Simultaneously as needing mud to circulate in well, therefore can only use
Rock bit or PDC drill bit, and the head of liquid of mud still has chip hold down effect to shaft bottom during deep drilling, so deep-well
Drilling speed effect is not notable, and this has certain limitation in oil, natural gas drilling.In addition, gas lift reverse circulation drilling well
Method must also use conventional single wall drilling rod and air water hybrid juction in addition to using double wall drill tool.
The reverse circular technique of also a kind of reaming major diameter cluster type down-hole hammer.Such method is installed using well head
Sealing device seals bore hole annulus, and the central passage that gas is suppressed into double wall drill tool is realized into reacting cycle sediment outflow.The engineering method is mainly used
Crept into colliery industry reaming, higher is required to stratum, if stratum cranny development, then annular pressure can not be established, reacting cycle
Forming effect can also be affected.Meanwhile the rock crushing tool that the engineering method uses is cluster type down-hole hammer, the structure of the instrument is slightly
Complexity, more maintaining and bit change slightly show cumbersome.
The content of the invention
It is contemplated that the defects of present in above-mentioned prior art and deficiency, there is provided a kind of gas drilling manifold of ground
Attachment structure, this manifold of ground attachment structure is applied in the self-priming reacting cycle gas drilling system of full well section, it is not necessary to often
Advise the participation of the instruments such as single wall drilling tool, mixing wastewater with air joint, full well section is used as circulatory mediator by the use of air, it is not necessary to mud or its
The participation of his drilling fluid can also form reacting cycle, and the serious water shortage that is particularly suitable for use in, leakage are serious or can not implement air lift reverse and follow
The well section of ring.
The present invention is realized by using following technical proposals：
A kind of gas drilling manifold of ground attachment structure, it is characterised in that：Including：Air injection unit, pressure release unit, flow
Meter, ground injecting gas manifold, high-pressure gas injection flexible pipe, erosion resistance gooseneck, high pressure reacting cycle sediment outflow flexible pipe, ground reacting cycle sediment outflow pipe
Line and direct circulation gas drilling sediment outflow pipeline,
Wherein：The air injection unit is connected with pressure release unit by high pressure line, and the flow is installed in the outlet of pressure release unit
Meter, flowmeter upstream connection pressure release unit, downstream connection ground injecting gas manifold, ground injecting gas manifold and high-pressure gas injection flexible pipe phase
Even；
The outlet of the erosion resistance gooseneck is connected with high pressure reacting cycle sediment outflow flexible pipe, high pressure reacting cycle sediment outflow flexible pipe and ground
Face reacting cycle sediment outflow pipeline connection, a four-way, the left end connection of four-way are installed in the middle part of the reacting cycle sediment outflow pipeline of ground
Ground reacting cycle sediment outflow pipeline, right-hand member connect a threeway, upper end connection slush pump, lower end connection ground injecting gas manifold；It is described
The one outlet of threeway is connected with direct circulation gas drilling sediment outflow pipeline, and another outlet of threeway is through to setting pot；
The erosion resistance gooseneck, high-pressure gas injection flexible pipe and direct circulation gas drilling sediment outflow pipeline are both connected to full well section certainly
On the structure of downhole assembly of suction reacting cycle gas drilling system.
On the reacting cycle sediment outflow pipeline towards setting pot, sampling pipe nipple and dustfall water pipe nipple are installed.
Air injection unit provides gases at high pressure, including air compressor and supercharger.
The left end of four-way by valve C connections ground reacting cycle sediment outflow pipeline, right-hand member by one threeway of valve E connections,
Upper end passes through valve B connection ground injecting gas manifolds, ground injecting gas manifold and high-pressure gas injection by valve D connection slush pumps, lower end
Flexible pipe is additionally provided with valve A between being connected.
Described high pressure refers to the pressure not less than 21 MPa.
Compared with prior art, what the present invention was reached has the beneficial effect that：
1st, the full well section for oil/gas drilling combined to form using manifold of ground attachment structure and structure of downhole assembly from
Suction reacting cycle gas drilling system, full well section use double wall drill tool, it is not necessary to the work such as conventional single wall drilling tool, mixing wastewater with air joint
The participation of tool；Full well section is used as circulatory mediator by the use of air, it is not necessary to which the participation of mud or other drilling fluids can also form counter follow
Ring.Suitable for serious water shortage, leakage is serious or can not implement the well section of gas lift reverse circulation；While drilling efficiency can be improved,
Gas drilling tolerance, equipment usage amount are saved, reduces occupation area of equipment volume, saves integrated cost, while to overcome underground to go out
Water, leakage, which are lost to return, provides a kind of new drilling technology.
2nd, the present invention to whether annular space perfusion mud there is no particular/special requirement.It is serious in formation leakage（Such as solution cavity）, well
In the case that mud liquid level is too low in interior water shortage or well, counterflush drilling can be still realized.If perfusion mud in well, to this
Counterflush drilling is implemented in invention also positive role.
3rd, the present invention is the air reverse circulation drilling of full well section.I.e. all using double wall drill tool, shaft bottom landwaste is full during drilling
Portion drains into earth's surface from double wall drill tool center sediment outflow passage, avoids and the borehole wall is caused to rush during air-flow returns on cutting carring
Erosion, be advantageous to prevent the generation that borehole wall perturbation caves in during troublesome zone drilling.
4th, more small compared with ring-type basal area between the borehole wall and drill string of double wall drill tool center sediment outflow passage flow section product.Cause
This, compressed air volume flow needed for full well section air reverse circulation drilling is relatively small, particularly when major diameter well section is crept into,
Become apparent.This advantageously reduces equipment investment, reduces place area occupied, reduces to the demand of power and drilling fluid, section
Save fuel consumption.
5th, it is strong to handle formation water output ability calibration recyclegas drilling well.During direct circulation gas drilling, if formation water production
Reach and be enough to make landwaste bonding agglomerating, then assemble in well inner annular gap, settle, form mud cake ring, cause hole cleaning to be imitated
Fruit is poor.As being acted upon not in time, most trigger lock of tool drilling at last, threaten downhole safety.Full well section reacting cycle gas drilling, rock
Bits return along in drilling tool central passage, and returning air-flow speed is higher on the sediment outflow passage of center, and wellbore clearance effect is good, advantageously reduces
The generation of mud drum.
6th, the self-priming reacting cycle gas drilling of full well section, all double wall drill tools of drilling tool, while use reacting cycle broken rock work
Tool（Reacting cycle pneumatic hammer, reacting cycle rock bit, reacting cycle PDC drill bit）, gas and landwaste will not enter annular space substantially, therefore
When being crept on cranny development stratum, severe leakage can be avoided and reduced.When particularly water layer, drop ply are simultaneous, if
Using direct circulation gas drilling or air-filling well-drilling, easily occur leakage lose return, the situation of leak not sand leakage, it is difficult to establish normal
Circulation.And use the self-priming reacting cycle gas drilling of full well section, then can effectively solve this problem.Meanwhile the present invention is to well head
Whether place needs to seal annular space not specially requiring, and annular space is sealed even without well mouth sealing device, with from close
Reacting cycle can be still formed with the help of the reacting cycle rock crushing tool of envelope effect.Certainly, if implementing to seal to well head, to this
Counterflush drilling is implemented in invention also positive role.
7th, when there is underground complexity, direct circulation gas drilling and conventional mud drilling well can be switched at any time.
8th, low pressure or under-voltage reservoir are often damaged by conventional mud drilling well, foam drilling, pressure-air drilling well.And use full well
The self-priming reacting cycle gas drilling system of section, gas and landwaste will not enter stratum, to low pressure, low permeability reservoir is pollution-free, zero
Injury.Meanwhile upper returning air-flow flow velocity is high, it is short to return lag time on landwaste, will not be contaminated because being contacted with borehole wall stratum, can and
When, accurately grasp formation information, find low pressure, low permeability reservoir.Therefore, using the self-priming reacting cycle gas drilling system of full well section
System is to easy injury, low pressure, low permeability formation（Some shale gas, coalbed methane reservoir etc., also including some debilitating reservoirs）Than just following
Ring gas drilling and conventional mud drilling well have more advantage.In addition, in the long run, China possesses substantial amounts of low pressure, hyposmosis stone
Oily natural gas resource, Methane Resources In Coalbed, the exploration and development of these resources is the self-priming reacting cycle gas drilling technique of full well section
Application provide wide space.
Brief description of the drawings
Below in conjunction with specification drawings and specific embodiments, the present invention is described in further detail, wherein：
Fig. 1 is applied to the self-priming reacting cycle gas drilling system structure diagram of full well section for the present invention；
Fig. 2 is drilling well gas circulation path figure.
Marked in figure：
1. the distribution of 5. high-pressure gas injection flexible pipe of air injection unit 2. pressure release unit, 3. flowmeter, 4. ground injecting gas manifold 6. connects
10. rotating blowout preventer of cock, 11. well head, 12. sleeve pipe 13. pairs under the double-walled of 8. double-walled kelly bar of cock 9. on first 7. double-walled
It is resistance to that the tap of 14. double-walled drill collar of wall drilling rod, 15. ring check valve, 16. gas reacting cycle rock crushing tool 17. or top drive 18.
The ground reacting cycle sediment outflow pipeline 21. of 19. high pressure reacting cycle sediment outflow flexible pipe of erosion gooseneck 20. samples the dustfall water of pipe nipple 22.
The gas of 23. 26. setting pot of direct circulation gas drilling sediment outflow pipeline 24. slush pump, 25. choke manifold of pipe nipple 27. comes from high pressure
The gas of gas injection flexible pipe 28. is drained between the double wall drill tool inner and outer tubes ring-type of 29. double wall drill tool outer tube of high pressure sediment outflow flexible pipe 30.
The center sediment outflow passage of 31. double wall drill tool inner tube of gap 32..
Embodiment
Embodiment 1
As the better embodiment of the present invention, it includes：Air injection unit 1, pressure release unit 2, flowmeter 3, ground note
Tracheae remittance 4, high-pressure gas injection flexible pipe 5, erosion resistance gooseneck 18, high pressure reacting cycle sediment outflow flexible pipe 19, ground reacting cycle sediment outflow pipeline
20 and direct circulation gas drilling sediment outflow pipeline 23,
Wherein：The air injection unit 1 is connected with pressure release unit 2 by high pressure line, and the stream is installed in the outlet of pressure release unit 2
Gauge 3, the upstream of flowmeter 3 connection pressure release unit 2, downstream connection ground injecting gas manifold 4, ground injecting gas manifold 4 and high-pressure gas injection
Flexible pipe 5 is connected；
The outlet of the erosion resistance gooseneck 18 is connected with high pressure reacting cycle sediment outflow flexible pipe 19, high pressure reacting cycle sediment outflow flexible pipe
19 are connected with ground reacting cycle sediment outflow pipeline 20, and on ground, the middle part of reacting cycle sediment outflow pipeline 20 is provided with a four-way, four-way
Left end connection ground reacting cycle sediment outflow pipeline 20, right-hand member connect a threeway, upper end connection slush pump 24, lower end connection ground
Injection-gas manifold 4；The one outlet of the threeway is connected with direct circulation gas drilling sediment outflow pipeline 23, and another outlet of threeway is straight
Lead to setting pot；
The erosion resistance gooseneck 18, high-pressure gas injection flexible pipe 5 and direct circulation gas drilling sediment outflow pipeline 23 are both connected to brill
Have in combining structure.
In this example, used structure of downhole assembly can use various double wall drill tools common in the art, ground
Manifold attachment structure is joined together to form the self-priming reacting cycle gas drilling system of full well section with structure of downhole assembly.
Embodiment 2
On the basis of above-described embodiment, on the reacting cycle sediment outflow pipeline 20 towards setting pot, sampling pipe nipple is installed
21 and dustfall water pipe nipple 22.Air injection unit 1 provides gases at high pressure, including air compressor and supercharger.The left end of four-way passes through
Valve C connections ground reacting cycle sediment outflow pipeline 20, right-hand member pass through valve D connection mud by one threeway of valve E connections, upper end
Pump 24, by valve B connection ground injecting gas manifold 4, ground injecting gas manifold 4 is also set between being connected with high-pressure gas injection flexible pipe 5 for lower end
It is equipped with valve A.
Embodiment 3
The concrete application example of the present invention：A kind of complete self-priming reacting cycle gas drilling system of well section is by following equipment and work
Tool is formed：Air injection unit 1, pressure release unit 2, flowmeter 3, ground injecting gas manifold 4, high-pressure gas injection flexible pipe 5, air distribution connector 6, double-walled
Cock 9, double-wall drill pipe 10, double-walled drill collar 11, ring check valve 12, reacting cycle broken rock under upper cock 7, double-walled kelly bar 8, double-walled
Instrument（Reacting cycle pneumatic hammer, reacting cycle rock bit or reacting cycle PDC drill bit）13rd, double-wall drill pipe 14, wellhead assembly 15, rotation
Turn preventer 16, tap（Or top is driven）17th, erosion resistance gooseneck 18, high pressure reacting cycle sediment outflow flexible pipe 19, ground reacting cycle row
Sandpipe line 20, sampling pipe nipple 21, dustfall water pipe nipple 22, direct circulation gas drilling sediment outflow pipeline 23, to slush pump 24, to throttle pipe
Remittance 25, while also include a series of valves and pipe nipple to match.
Air injection unit 1 is made up of air compressor machine and supercharger, and specific how much equipment should determine according to engineering is actual.Generally
2 air compressor machines and standby 1 supercharger are needed within 444.5mm wells 1000m.Air injection unit 1 provides drilling well required compression
Gas.Air injection unit 1 passes through high pressure line with pressure release unit 2（Usually less than 21MPa）Connection.Pressure release unit 2 is by a series of
Valve, silencing equipment, manometer etc. form, and belong to safety device, for discharging system pressure and regulation into the gas of system
Amount.The outlet of pressure release unit 2 sets flowmeter 3, for measuring the actual tolerance entered in system.Ground injecting gas manifold 4 is high pressure
Manifold（Usually less than 21MPa）, connected by a series of high pressure hard tube line, high-pressure hose line, crossover sub etc. by union
Formed.Part of the high-pressure gas injection pipeline on derrick can use soft pipeline, can also use hard tube line, this by on-site actual situations and
It is fixed.The pressure rank of high-pressure gas injection flexible pipe 5 being connected with air distribution connector 6 is usually less than 21MPa, and the two is connected by union.
Air distribution connector 6 is double-walled construction, its upper end and tap（Or top is driven）It is connected, lower end and double-walled kelly bar（Or double-wall drill pipe）Phase
Even.The effect of air distribution connector 6 is that the gases at high pressure from high-pressure gas injection flexible pipe 5 are assigned to the inner and outer tubes of double wall drill tool
In annular gap.The top of air distribution connector 6 connects tap（Or top is driven）17, if connection tap 17, is connected for left-hand thread；If
Connection top is driven, then is connected for right-hand thread.Tap（Or top is driven）Gooseneck above 17 is erosion resistance gooseneck 18, and the gooseneck turns
There is buffer area crook, can effectively reduce erosion of the high-velocity fluid to gooseneck, and the erosion resistance gooseneck 18 belongs to replaceable
Part.Cock 7 on the bottom of air distribution connector 6 connection double-walled, cock is double-walled construction on this, double wall drill tool annular space can be realized close
Envelope.Cock 7 connects double-walled kelly bar 8 below on double-walled, and double-walled kelly bar 8 is usually six rib double-walled kelly bars.Double-walled kelly bar 8
Cock 9 under lower end connection double-walled.Cock 9 is right-hand thread under double-walled, and cock 7 is left-hand thread on double-walled.If being driven using top, can not make
With cock 9 under cock on double-walled 7, double-walled kelly bar 8 and double-walled.Entering well BHA is from top to bottom：Double-wall drill pipe 13, double-walled
Drill collar 14, ring check valve 15 and gas reacting cycle rock crushing tool 16.Double-wall drill pipe 13, the outer tube of double-walled drill collar 14 bore to be conventional
Bar, inside add inner tube by innovative design.The specification of double-wall drill pipe 13 and double-walled drill collar 14 is identical with conventional drill rod.Ring
Shape check-valves 15 is the interior jet-preventing tool of nearly drill bit, can effectively prevent borehole fluid recharge from entering the inside and outside pipe ring of double wall drill tool
In shape gap.Gas reacting cycle rock crushing tool 16 includes reacting cycle pneumatic hammer, reacting cycle rock bit and reacting cycle PDC drill bit.
Reacting cycle rock crushing tool designed by the present invention has self sealss annular space function.In the presence of self sealss, gases at high pressure pass through
Center sediment outflow passage is entered directly into after the reacting cycle rock crushing tool 16（Shown in Fig. 2）, while reacting cycle rock crushing tool 16 is to well
There is certain swabbing action at bottom（Form self-priming）, to reverse circulating formed with positive effect.The present invention relates to well head
Device 11 is by device structures such as single four-way, double four-ways, rise pipe nipple, single ram type perventer, double ram type preventer, annular preventers
Into.The specific requirement of the wellhead assembly 11 should be determined according to Drilling Design.Full well section involved in the present invention is self-priming counter to be followed
Ring gas drilling system and process do not specially require to wellhead assembly 11.For rotating blowout preventer 10, installed in routine
On wellhead assembly 11, on the one hand salable annular space, help is provided when counterflush drilling needs and seals annular space；The opposing party
Face, when direct circulation gas drilling is converted to, rotating blowout preventer 10 is essential device.High pressure reacting cycle sediment outflow is soft
Pipe 19 is connected with erosion resistance gooseneck 18 by union, and pressure rank is not lower than 35MPa, and length should also be as according to derrick height
Spend reasonable selection.The pressure rank of ground reacting cycle sediment outflow pipeline 20 can not be less than 35MPa, and distal end and direct circulation gas drilling
Sediment outflow pipeline 23 and on a sediment outflow passage, is together picked out to setting pot.The pressure of direct circulation gas drilling sediment outflow pipeline 23
Rank is not less than 7MPa, usually 10 " pipeline.
The implementation process of the self-priming reacting cycle gas drilling of full well section is as follows：D, B, F valve are closed, opens A, C, E valve.
Compressed gas is produced by air injection unit 1, is flowed through pressure release unit 2, flowmeter 3, ground injecting gas manifold 4, high-pressure gas injection flexible pipe 5 and is reached
Air distribution connector 6.In the presence of air distribution connector 6, compressed gas enters double wall drill tool（Double-walled kelly bar 8, double-wall drill pipe 13,
Double-walled drill collar）Inner and outer pipe annular gap in and it is descending along annular gap, by being reached after ring check valve 15, gas is counter follows
At ring rock crushing tool 16.Under the effect greatly of the broken rock of gas reacting cycle rock crushing tool 16, self sealss annular space, reacting cycle sediment outflow three,
Compressed gas cutting carring returns on the center sediment outflow passage of double wall drill tool inner tube, by tap（Or top is driven）17th, resistance to punching
Lose gooseneck 18, high pressure reacting cycle sediment outflow flexible pipe 19, ground reacting cycle sediment outflow pipeline 20, sampling pipe nipple 21 and dustfall water pipe nipple
22, it is ultimately discharged into setting pot.
When underground occurs complicated, it is necessary to handle complexity with direct circulation gas drilling or be converted to direct circulation gas drilling technique
When implementing drilling well：A, D, E valve are closed, opens B, C, F valve.After air injection unit 1 produces gases at high pressure, gas passes through pressure release list
Member 2 and flowmeter 3, are entered in ground reacting cycle sediment outflow pipeline 20 by B valves.Compressed gas is by ground reacting cycle sediment outflow
Pipeline 20, high pressure reacting cycle sediment outflow flexible pipe 19, erosion resistance gooseneck 18, tap（Or top is driven）17, enter directly into distribution and connect
First 6, double wall drill tool（Double-walled kelly bar 8, double-wall drill pipe 13, double-walled drill collar 14, gas reacting cycle rock crushing tool 16）Central row
In sand passage, and shaft bottom is come downwards to along center sediment outflow passage, carry shaft bottom landwaste along the annular space between double wall drill tool and the borehole wall
On return, in the presence of rotating blowout preventer 10, pass through valve F, direct circulation ground sediment outflow pipeline 23, sampling pipe nipple 21, dustfall water
Pipe nipple 22, is ultimately discharged into setting pot.
When underground occurs complicated, it is necessary to handle complexity with conventional mud drilling well or be converted to the implementation of conventional mud drilling technology
During drilling well：A, B, E, F valve are closed, opens D, C valve.Mud from slush pump 24（Or other drilling fluids）, pass through D valves
Door, C valves, ground reacting cycle sediment outflow pipeline 20, high pressure reacting cycle sediment outflow flexible pipe 19, erosion resistance gooseneck 18, tap（Or top
Drive）17, enter directly into air distribution connector 6, double wall drill tool（Double-walled kelly bar 8, double-wall drill pipe 13, double-walled drill collar 14, gas is counter follows
Ring rock crushing tool 16）Center sediment outflow passage in, and come downwards to shaft bottom along center sediment outflow passage, carry shaft bottom landwaste along double-walled
Return to well head on annular space between drilling tool and the borehole wall, because the F valves at rotating blowout preventer 10 are closed, returned from shaft bottom to well head
Mud will enter choke manifold 25, be finally recycled in mud circulating system.
Claims (5)
- A kind of 1. gas drilling manifold of ground attachment structure, it is characterised in that：Including：Air injection unit (1), pressure release unit (2), stream Gauge (3), ground injecting gas manifold (4), high-pressure gas injection flexible pipe (5), erosion resistance gooseneck (18), high pressure reacting cycle sediment outflow flexible pipe (19), ground reacting cycle sediment outflow pipeline (20) and direct circulation gas drilling sediment outflow pipeline (23),Wherein：The air injection unit (1) is connected with pressure release unit (2) by high pressure line, described in pressure release unit (2) outlet installation Flowmeter (3), flowmeter (3) upstream connection pressure release unit (2), downstream connection ground injecting gas manifold (4), ground injecting gas manifold (4) it is connected with high-pressure gas injection flexible pipe (5)；The outlet of the erosion resistance gooseneck (18) is connected with high pressure reacting cycle sediment outflow flexible pipe (19), high pressure reacting cycle sediment outflow flexible pipe (19) it is connected with ground reacting cycle sediment outflow pipeline (20), one four is provided with the middle part of ground reacting cycle sediment outflow pipeline (20) Logical, the left end connection ground reacting cycle sediment outflow pipeline (20) of four-way, right-hand member connects a threeway, and upper end connects slush pump (24), Lower end connection ground injecting gas manifold (4)；The one outlet of the threeway is connected with direct circulation gas drilling sediment outflow pipeline (23), and three Another logical outlet is through to setting pot；The erosion resistance gooseneck (18), high-pressure gas injection flexible pipe (5) and direct circulation gas drilling sediment outflow pipeline (23) are both connected to On the structure of downhole assembly of the self-priming reacting cycle gas drilling system of full well section.
- A kind of 2. gas drilling manifold of ground attachment structure according to claim 1, it is characterised in that：Towards setting pot Reacting cycle sediment outflow pipeline (20) on, sampling pipe nipple (21) and dustfall water pipe nipple (22) is installed.
- A kind of 3. gas drilling manifold of ground attachment structure according to claim 1, it is characterised in that：Air injection unit (1) Gases at high pressure, including air compressor and supercharger are provided.
- A kind of 4. gas drilling manifold of ground attachment structure according to claim 1, it is characterised in that：The left end of four-way leads to Valve C connections ground reacting cycle sediment outflow pipeline (20) is crossed, by one threeway of valve E connections, upper end is connected right-hand member by valve D Slush pump (24), lower end pass through valve B connection ground injecting gas manifolds (4), ground injecting gas manifold (4) and high-pressure gas injection flexible pipe (5) Valve A is additionally provided between being connected.
- A kind of 5. gas drilling manifold of ground attachment structure according to claim 1, it is characterised in that：Described high pressure is Refer to the pressure not less than 21 MPa.
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| CN105178897B true CN105178897B (en) | 2018-03-30 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10337249B2 (en) | 2017-02-04 | 2019-07-02 | Jason A Hatfield | Drilling wells with air |
| CN208220665U (en) * | 2018-03-27 | 2018-12-11 | 北京首创热力股份有限公司 | A kind of multi-cycle runner well system for big size hole hard rock drilling well |
| CN110485955B (en) * | 2019-08-30 | 2021-05-04 | 中国石油集团川庆钻探工程有限公司 | Well drilling well head suction helps row union system |
| CN110608005B (en) * | 2019-10-10 | 2023-06-27 | 西南石油大学 | Gas lift reverse circulation drilling system and automatic control method |
| CN110821445B (en) * | 2019-10-16 | 2022-06-21 | 中国石油集团川庆钻探工程有限公司 | Nitrogen pumping operation method under condition of low-volume natural gas formation |
| CN111677503A (en) * | 2020-05-22 | 2020-09-18 | 福建省华力勘测设计有限公司 | Sand bed probing sampling drilling tool |
| CN113250604B (en) * | 2021-06-29 | 2023-10-13 | 重庆科技学院 | Self-air-distribution cluster type pneumatic down-the-hole hammer set |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1349036A (en) * | 2001-11-20 | 2002-05-15 | 中国石化胜利油田有限公司采油工艺研究院 | Rotary operation equipment for light overhaul of oil-water well and its circulation system |
| CN1356451A (en) * | 2002-01-11 | 2002-07-03 | 华北石油管理局钻井工艺研究院 | Reverse cycle drilling method and equipment for oil well or gas well |
| CN104632073A (en) * | 2013-11-07 | 2015-05-20 | 大连市勘察测绘研究院有限公司 | Reverse circulation drilling method of hollow down-hole hammer |
| CN104832082A (en) * | 2015-02-26 | 2015-08-12 | 徐州徐工基础工程机械有限公司 | Pneumatic DTH hammer reverse circulation slagging construction process for rotary drilling rig |
| CN104863541A (en) * | 2015-04-22 | 2015-08-26 | 中国石油大学(华东) | Experimental method of simulating cementing in well cementation process |
| CN205036327U (en) * | 2015-10-10 | 2016-02-17 | 中国石油集团川庆钻探工程有限公司 | Gas drilling ground manifold connection structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6530437B2 (en) * | 2000-06-08 | 2003-03-11 | Maurer Technology Incorporated | Multi-gradient drilling method and system |
-
2015
- 2015-10-10 CN CN201510652804.4A patent/CN105178897B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1349036A (en) * | 2001-11-20 | 2002-05-15 | 中国石化胜利油田有限公司采油工艺研究院 | Rotary operation equipment for light overhaul of oil-water well and its circulation system |
| CN1356451A (en) * | 2002-01-11 | 2002-07-03 | 华北石油管理局钻井工艺研究院 | Reverse cycle drilling method and equipment for oil well or gas well |
| CN104632073A (en) * | 2013-11-07 | 2015-05-20 | 大连市勘察测绘研究院有限公司 | Reverse circulation drilling method of hollow down-hole hammer |
| CN104832082A (en) * | 2015-02-26 | 2015-08-12 | 徐州徐工基础工程机械有限公司 | Pneumatic DTH hammer reverse circulation slagging construction process for rotary drilling rig |
| CN104863541A (en) * | 2015-04-22 | 2015-08-26 | 中国石油大学(华东) | Experimental method of simulating cementing in well cementation process |
| CN205036327U (en) * | 2015-10-10 | 2016-02-17 | 中国石油集团川庆钻探工程有限公司 | Gas drilling ground manifold connection structure |
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Effective date of registration: 20200914 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: Chenghua District Green Road 610051 Chengdu City, Sichuan province 1 No. 3 Chuanqing drilling Department of Science & Technology Patentee before: CNPC Chuanqing Drilling Engineering Co.,Ltd. |