CN105178859B - A kind of self-priming reacting cycle gas drilling system of full well section for oil/gas drilling - Google Patents
A kind of self-priming reacting cycle gas drilling system of full well section for oil/gas drilling Download PDFInfo
- Publication number
- CN105178859B CN105178859B CN201510652785.5A CN201510652785A CN105178859B CN 105178859 B CN105178859 B CN 105178859B CN 201510652785 A CN201510652785 A CN 201510652785A CN 105178859 B CN105178859 B CN 105178859B
- Authority
- CN
- China
- Prior art keywords
- gas
- reacting cycle
- double
- sediment outflow
- gas drilling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 128
- 239000013049 sediment Substances 0.000 claims abstract description 83
- 238000002347 injection Methods 0.000 claims abstract description 43
- 239000007924 injection Substances 0.000 claims abstract description 43
- 244000261422 Lysimachia clethroides Species 0.000 claims abstract description 27
- 230000003628 erosive effect Effects 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims description 162
- 239000011435 rock Substances 0.000 claims description 30
- 238000009826 distribution Methods 0.000 claims description 23
- 210000002445 nipple Anatomy 0.000 claims description 16
- 238000005070 sampling Methods 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 abstract description 9
- 239000002351 wastewater Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 239000007788 liquid Substances 0.000 description 5
- 241000283216 Phocidae Species 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 239000008398 formation water Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012407 engineering method Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000010412 perfusion Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of self-priming reacting cycle gas drilling system of the full well section for oil/gas drilling, including manifold of ground attachment structure and the structure of downhole assembly that is connected with manifold of ground attachment structure, described manifold of ground attachment structure includes：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, full well section of the invention uses double wall drill tool, the participation of the instruments such as conventional single wall drilling tool, mixing wastewater with air joint is not needed, full well section air is used as circulatory mediator, reacting cycle can also be formed by not needing the participation of mud or other drilling fluids, and the serious water shortage that is particularly suitable for use in, leakage are 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, a kind of full well section for oil/gas drilling is specifically related to
Self-priming reacting cycle gas drilling system.
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, is applied, average drilling speed improves 4~15 times in the area such as Chongqing of Sichuan.But during using direct circulation gas drilling（Particularly major diameter
Well）, equipment investment is big, many, air consumption of occupation of land is big, operation energy consumption is high, high cost, 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 for handling 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 set up 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 are 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. double-walled side is first unloaded
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
A kind of gas lift reverse circulation drilling process for entering hydrophthalmia blocking with regard to drill bit can be solved without all drilling tools of extraction.
Above-mentioned patent document is used for the prior art of 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 it 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.
Also a kind of reaming reverse circular technique of 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 realizes reacting cycle sediment outflow.The engineering method is mainly used
In colliery industry reaming drilling, higher is required to stratum, if stratum cranny development, then annular pressure can not be set up, reacting cycle
Forming effect can also be affected.Meanwhile, the rock crushing tool that the engineering method is used is cluster type down-hole hammer, and 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 for the defect present in above-mentioned prior art and deficiency there is provided a kind of for the complete of oil/gas drilling
The self-priming reacting cycle gas drilling system of well section, the present invention is complete, and well section uses double wall drill tool, it is not necessary to conventional single wall drilling tool, air water
The participation of the instruments such as hybrid juction, full well section air is used as circulatory mediator, it is not necessary to the participation of mud or other drilling fluids
Also reacting cycle can be formed, the serious water shortage that is particularly suitable for use in, leakage are serious or can not implement the well section of gas lift reverse circulation.
The present invention is realized by using following technical proposals：
A kind of self-priming reacting cycle gas drilling system of full well section for oil/gas drilling, including manifold of ground attachment structure
With the structure of downhole assembly being connected with manifold of ground attachment structure, it is characterised in that：Described manifold of ground attachment structure includes：
Air injection unit, pressure release unit, flowmeter, ground injecting gas manifold, high-pressure gas injection flexible pipe, erosion resistance gooseneck, high pressure reacting cycle row
Sand flexible pipe, ground reacting cycle sediment outflow pipeline 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, is provided with a four-way, the left end connection of four-way in the middle part of the reacting cycle sediment outflow pipeline of ground
Ground reacting cycle sediment outflow pipeline, right-hand member connects 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 of threeway is exported 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 BHA
In structure.
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 structure of downhole assembly, including it is tap or top drive, air distribution connector, cock on double-walled, double-walled kelly bar, double
Cock, rotating blowout preventer, sleeve pipe, double-wall drill pipe, double-walled drill collar, ring check valve and gas reacting cycle rock crushing tool under wall, its
In：
Described erosion resistance gooseneck drives with tap or top and is connected, and high-pressure gas injection flexible pipe is connected with air distribution connector, just follows
Ring gas drilling sediment outflow pipeline is connected with rotating blowout preventer housing side outlet；
The lower end of the tap is connected by screw thread with air distribution connector, and air distribution connector lower end on screw thread and double-walled by revolving
Cock and double-wall drill pipe under connection double-walled kelly bar below cock on plug connection, double-walled, double-walled kelly bar lower section connection double-walled；Or
Person drives on top lower end and is directly connected to double-wall drill pipe by right-hand thread；
Double-walled drill collar, ring check valve and gas reacting cycle rock crushing tool are sequentially connected below double-wall drill pipe；
Described sleeve pipe is located at below well head, the top connection rotating blowout preventer of well head, rotating blowout preventer upper end connection double-walled
Lower cock.
The side of the well head is provided with choke manifold.
Direct circulation gas drilling sediment outflow pipeline is connected by valve F with rotating blowout preventer housing side outlet.
Described high pressure refers to the pressure for being 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 uses 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 air is used as circulatory mediator, 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 being improved,
Gas drilling tolerance, equipment usage amount are saved, occupation area of equipment volume is reduced, integrated cost is saved, while to overcome underground to go out
Water, leakage, which are lost, returns a kind of new drilling technology of offer.
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.Double wall drill tool all is used, shaft bottom landwaste is full during drilling
Portion drains into earth's surface from double wall drill tool center sediment outflow passage, it is to avoid air-flow causes punching to the borehole wall during being returned on cutting carring
Erosion, is conducive to preventing the generation that borehole wall perturbation caves in during troublesome zone drilling.
4th, many 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, reduction to the demand of power and drilling fluid, section
Save fuel consumption.
5th, processing formation water output ability calibration recyclegas drilling well is strong.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
It is really 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 are returned 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 using 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 set up normal
Circulation.And use the self-priming reacting cycle gas drilling of full well section, then it can effectively solve this problem.Meanwhile, the present invention is to well head
Whether place needs to seal annular space not specially requiring, even without well mouth sealing device sealing annular space, 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, and 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 present system structural representation；
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 present invention a better embodiment, it include manifold of ground attachment structure and with manifold of ground attachment structure
The structure of downhole assembly of connection, described manifold of ground attachment structure includes：Air injection unit 1, pressure release unit 2, flowmeter 3,
Face injection-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, 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, the structure of downhole assembly used can use various double wall drill tools common in the art.
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 passes through valve D connection mud by one threeway of valve E connections, upper end
Pump 24, lower end is by valve B connection ground injecting gas manifold 4, and ground injecting gas manifold 4 is also set between being connected with high-pressure gas injection flexible pipe 5
It is equipped with valve A.
Embodiment 3
As another better embodiment of the present invention, it includes manifold of ground attachment structure and knot is connected with manifold of ground
The structure of downhole assembly of structure connection, described manifold of ground attachment structure includes：Air injection unit 1, pressure release unit 2, flowmeter 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 row
Sandpipe line 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.
17, air distribution connector 6, cock 7, double-walled drill with ferrule on double-walled are driven in described structure of downhole assembly, including tap or top
Cock 9, rotating blowout preventer 10, sleeve pipe 12, double-wall drill pipe 13, double-walled drill collar 14, ring check valve 15 and gas under bar 8, double-walled
Reacting cycle rock crushing tool 16, wherein：
Described erosion resistance gooseneck 18 drives 17 with tap or top and is connected, high-pressure gas injection flexible pipe 5 and the phase of air distribution connector 6
Even, direct circulation gas drilling sediment outflow pipeline 23 is connected with the housing side outlet of rotating blowout preventer 10；
The lower end of the tap is connected by screw thread with air distribution connector 6, and the lower end of air distribution connector 6 passes through on screw thread and double-walled
Cock 7 is connected, the lower section of cock 7 connection double-walled kelly bar 8 on double-walled, cock 9 and double-walled under the lower section of double-walled kelly bar 8 connection double-walled
Drilling rod 13；Or top drives lower end and is directly connected to double-wall drill pipe 13 by right-hand thread；
The lower section of double-wall drill pipe 13 is sequentially connected double-walled drill collar 14, ring check valve 15 and gas reacting cycle rock crushing tool 16；
Described sleeve pipe 12 is located on the lower section of well head 11, the top connection rotating blowout preventer 10 of well head 11, rotating blowout preventer 10
Cock 9 under end connection double-walled.
Gas reacting cycle rock crushing tool is using conventional reverse-circulating tool.
Embodiment 4
On the basis of above-described embodiment, the side of the well head 11 is provided with choke manifold 25.Direct circulation gas drilling is arranged
Sandpipe line 23 is connected by valve F with the housing side outlet of rotating blowout preventer 10.Described high pressure refers to the pressure for being not less than 21 MPa
By force.
Embodiment 5
As the preferred forms of the present invention, a kind of full well section for oil/gas drilling of the present invention is self-priming anti-
Recyclegas well system is made up of following equipment and instrument：Air injection unit 1, pressure release unit 2, flowmeter 3, ground injecting gas manifold
4th, high-pressure gas injection flexible pipe 5, air distribution connector 6, cock 9, double-wall drill pipe 10, double-walled under cock 7, double-walled kelly bar 8, double-walled on double-walled
Drill collar 11, ring check valve 12, reacting cycle rock crushing tool（Reacting cycle pneumatic hammer, reacting cycle rock bit or reacting cycle PDC are bored
Head）13rd, double-wall drill pipe 14, wellhead assembly 15, rotating blowout preventer 16, tap（Or top is driven）17th, erosion resistance gooseneck 18, high pressure
Reacting cycle sediment outflow flexible pipe 19, ground reacting cycle sediment outflow pipeline 20, sampling pipe nipple 21, dustfall water pipe nipple 22, direct circulation gas drilling
Sediment outflow pipeline 23, to slush pump 24, to choke manifold 25, while also include a series of valves and pipe nipple matched.
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. are constituted, and belong to safety device, enter the gas of system for discharging system pressure and regulation
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 is by on-site actual situations
It is fixed.The pressure rank usually less than 21MPa of high-pressure gas injection flexible pipe 5 being connected with air distribution connector 6, 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 the inner and outer tubes that the gases at high pressure from high-pressure gas injection flexible pipe 5 are assigned to 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 that cock 7 is left-hand thread on right-hand thread, double-walled under double-walled.If being driven using top, it 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 adds 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 that 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）, positive effect is formed with to reverse circulating.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 are not specially required 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 sealing 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 high according to derrick
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, A, C, E valve is opened.
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 is returned 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, B, C, F valve is opened.Air injection unit 1 is produced after gases at high pressure, and 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, D, C valve is opened.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, because the F valves at rotating blowout preventer 10 are closed, returned from shaft bottom to well head on annular space between drilling tool and the borehole wall
Mud will enter choke manifold 25, be finally recycled in mud circulating system.
Claims (8)
1. a kind of self-priming reacting cycle gas drilling system of full well section for oil/gas drilling, including manifold of ground attachment structure and
The structure of downhole assembly being connected with manifold of ground attachment structure, it is characterised in that：Described manifold of ground attachment structure includes：Note
Gas unit (1), pressure release unit (2), flowmeter (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, and pressure release unit (2) outlet installs described
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 is exported 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 structure of downhole assembly.
2. the self-priming reacting cycle gas drilling system of a kind of full well section for oil/gas drilling according to claim 1, its
It is characterised by：On the reacting cycle sediment outflow pipeline (20) towards setting pot, sampling pipe nipple (21) and dustfall water pipe nipple are installed
(22)。
3. the self-priming reacting cycle gas drilling system of a kind of full well section for oil/gas drilling according to claim 1, its
It is characterised by：Air injection unit (1) provides gases at high pressure, including air compressor and supercharger.
4. the self-priming reacting cycle gas drilling system of a kind of full well section for oil/gas drilling according to claim 1, its
It is characterised by：The left end of four-way passes through valve E connections one by valve C connections ground reacting cycle sediment outflow pipeline (20), right-hand member
Threeway, upper end passes through valve B connection ground injecting gas manifolds (4), ground injecting gas pipe by valve D connection slush pumps (24), lower end
Converge (4) and be additionally provided with valve A between flowmeter (3).
5. the self-priming reacting cycle gas drilling system of a kind of full well section for oil/gas drilling according to claim 1, its
It is characterised by：Described structure of downhole assembly, including tap or top drive (17), it is air distribution connector (6), cock (7) on double-walled, double
Cock (9) under wall kelly bar (8), double-walled, rotating blowout preventer (10), sleeve pipe (12), double-wall drill pipe (13), double-walled drill collar (14),
Ring check valve (15) and gas reacting cycle rock crushing tool (16), wherein：
Described erosion resistance gooseneck (18) drives (17) with tap or top and is connected, high-pressure gas injection flexible pipe (5) and air distribution connector (6)
It is connected, direct circulation gas drilling sediment outflow pipeline (23) is connected with rotating blowout preventer (10) housing side outlet；
The lower end that the tap or top are driven is connected by screw thread with air distribution connector (6), air distribution connector (6) lower end by screw thread and
Cock (7) is connected on double-walled, and connection is double below connection double-walled kelly bar (8), double-walled kelly bar (8) below cock (7) on double-walled
Cock (9) and double-wall drill pipe (13) under wall；
Double-walled drill collar (14), ring check valve (15) and gas reacting cycle rock crushing tool are sequentially connected below double-wall drill pipe (13)
(16)；
Described sleeve pipe（12）Positioned at well head（11）Lower section, well head（11）Top connection rotating blowout preventer（10）, rotating blowout preventer
（10）Cock under upper end connection double-walled（9）.
6. the self-priming reacting cycle gas drilling system of a kind of full well section for oil/gas drilling according to claim 5, its
It is characterised by：The well head（11）Side be provided with choke manifold（25）.
7. the self-priming reacting cycle gas drilling system of a kind of full well section for oil/gas drilling according to claim 5, its
It is characterised by：Direct circulation gas drilling sediment outflow pipeline（23）Pass through valve F and rotating blowout preventer（10）Housing side outlet is connected.
8. the self-priming reacting cycle gas drilling system of a kind of full well section for oil/gas drilling according to claim 1 or 5,
It is characterized in that：Described high pressure refers to the pressure for being not less than 21 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510652785.5A CN105178859B (en) | 2015-10-10 | 2015-10-10 | A kind of self-priming reacting cycle gas drilling system of full well section for oil/gas drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510652785.5A CN105178859B (en) | 2015-10-10 | 2015-10-10 | A kind of self-priming reacting cycle gas drilling system of full well section for oil/gas drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105178859A CN105178859A (en) | 2015-12-23 |
| CN105178859B true CN105178859B (en) | 2017-07-14 |
Family
ID=54901218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510652785.5A Active CN105178859B (en) | 2015-10-10 | 2015-10-10 | A kind of self-priming reacting cycle gas drilling system of full well section for oil/gas drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105178859B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10337249B2 (en) | 2017-02-04 | 2019-07-02 | Jason A Hatfield | Drilling wells with air |
| CN107461162B (en) * | 2017-07-07 | 2023-02-28 | 成都西南石大石油工程技术有限公司 | Gas-lift reverse circulation well drilling method and drilling tool combination device |
| CN107387035A (en) * | 2017-09-13 | 2017-11-24 | 吉林大学 | Gas injection High Pressure Drain system in a kind of well |
| CN110029953A (en) * | 2018-01-12 | 2019-07-19 | 中石化石油工程技术服务有限公司 | A kind of air reverse circulation drilling sand-removing system |
| 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 |
| CN109736737B (en) * | 2019-01-04 | 2021-03-30 | 中国石油集团川庆钻探工程有限公司 | Method for snubbing tripping of reservoir gas drilling well |
| CN110017138A (en) * | 2019-05-08 | 2019-07-16 | 中国科学院武汉岩土力学研究所 | Air water multilayer sampling method and device in a kind of drilling |
| CN110410041B (en) * | 2019-09-06 | 2024-04-16 | 中国石油集团川庆钻探工程有限公司 | Wellhead safety operation system based on axial oblique spraying suction auxiliary discharge |
| 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 |
| CN110905427B (en) * | 2019-12-19 | 2022-05-13 | 中化明达河北地质工程有限公司 | Pneumatic processing device and method for buried drilling accident in drilling hole |
| CN110984861B (en) * | 2019-12-26 | 2021-05-07 | 马鸿彦 | Full well section self-suction type gas drilling device of oil-gas well based on air reverse circulation effect |
| CN111206876B (en) * | 2020-03-16 | 2021-06-08 | 吉林大学 | Top drive gas reverse circulation drilling ground equipment system |
| CN111287743B (en) * | 2020-04-10 | 2022-08-23 | 中国地质科学院探矿工艺研究所 | Air reverse circulation continuous sampling drilling system and process method for water-bearing stratum |
| CN113309479B (en) * | 2021-07-12 | 2022-06-24 | 中国地质科学院勘探技术研究所 | Efficient coring drilling device and method for shallow sea reef limestone |
| CN113445924A (en) * | 2021-08-03 | 2021-09-28 | 淮南矿业(集团)有限责任公司 | Mud gas lift reverse circulation pore-forming method for large-diameter life-saving hole |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101429862A (en) * | 2008-12-11 | 2009-05-13 | 韩继超 | Positive and reverse circulation integrated hydraulic jet oil production method and apparatus |
| CN101929309A (en) * | 2010-08-16 | 2010-12-29 | 邯郸市伟业地热开发有限公司 | Gas lift reverse circulation drilling process |
| JP4963596B2 (en) * | 2006-11-28 | 2012-06-27 | ライト工業株式会社 | Supply path switching device |
| CN104763368A (en) * | 2015-02-06 | 2015-07-08 | 中煤科工集团西安研究院有限公司 | Orifice seal device for large-diameter downhole hammer and reverse circulation construction technology for orifice seal device |
| CN205036295U (en) * | 2015-10-10 | 2016-02-17 | 中国石油集团川庆钻探工程有限公司 | Full well section is from inhaling anti - recycle gas drilling system of formula |
-
2015
- 2015-10-10 CN CN201510652785.5A patent/CN105178859B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JP4963596B2 (en) * | 2006-11-28 | 2012-06-27 | ライト工業株式会社 | Supply path switching device |
| CN101429862A (en) * | 2008-12-11 | 2009-05-13 | 韩继超 | Positive and reverse circulation integrated hydraulic jet oil production method and apparatus |
| CN101929309A (en) * | 2010-08-16 | 2010-12-29 | 邯郸市伟业地热开发有限公司 | Gas lift reverse circulation drilling process |
| CN104763368A (en) * | 2015-02-06 | 2015-07-08 | 中煤科工集团西安研究院有限公司 | Orifice seal device for large-diameter downhole hammer and reverse circulation construction technology for orifice seal device |
| CN205036295U (en) * | 2015-10-10 | 2016-02-17 | 中国石油集团川庆钻探工程有限公司 | Full well section is from inhaling anti - recycle gas drilling system of formula |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105178859A (en) | 2015-12-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105178859B (en) | A kind of self-priming reacting cycle gas drilling system of full well section for oil/gas drilling | |
| CN105178897B (en) | A kind of gas drilling manifold of ground attachment structure | |
| CN208152960U (en) | A kind of multi-cycle runner drilling tool | |
| CN205036295U (en) | Full well section is from inhaling anti - recycle gas drilling system of formula | |
| CN105113978B (en) | A kind of monomer Large Diameter Reverse circulation air available for big size hole drilling well is hammered into shape | |
| CN205036331U (en) | Anti - recycle gas well drilling drill tool combination structure | |
| CN100494623C (en) | Low-pressure drilling technology using double-wall drill pipe | |
| CN107401393A (en) | Water pumping gas production integration goaf gas extraction well casing programme and its construction method | |
| CN105134114A (en) | Reverse circulation gas drilling tool combination structure | |
| CN110029938A (en) | A kind of air reverse circulation drilling method | |
| CN205036327U (en) | Gas drilling ground manifold connection structure | |
| WO1991017339A1 (en) | Method and apparatus for drilling and coring | |
| CN104763348B (en) | The brill of the bionical nozzle of a kind of build-in expands integral type drilling tool and bores expanding method | |
| CN104563873B (en) | Downhole casing power guide device | |
| CN208152959U (en) | A kind of mixed gas connector of multi-cycle runner drilling tool | |
| CN205089211U (en) | Anti - circulating air of monomer major diameter hammer for oil and gas drilling | |
| CN101487385B (en) | Downhole tool for reducing equivalent circulation density | |
| CN206785305U (en) | A kind of hollow hammer hole reacting cycle continuous sampling rig | |
| Bo et al. | Reverse circulation DTH hammer drilling technique | |
| CN106337667A (en) | Dual-opening horizontal well cementation and completion construction method | |
| CN106246104A (en) | A kind of two boiled water horizontal well construction methods | |
| CN207048740U (en) | A kind of water pumping gas production integration goaf gas extraction well casing programme | |
| CN207879289U (en) | Well workover reacting cycle drags for sand sand-precipitating tube | |
| CN106030022A (en) | Dual circulation fluid hammer drilling system | |
| CN200992985Y (en) | Dual-wall drilling downhole flow dividing valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200908 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. |
|
| TR01 | Transfer of patent right |