CN109267974A - After a kind of perforation Anti-blockage can with pressure turn of pumping integrated flow string and operating method - Google Patents
After a kind of perforation Anti-blockage can with pressure turn of pumping integrated flow string and operating method Download PDFInfo
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- CN109267974A CN109267974A CN201811448901.1A CN201811448901A CN109267974A CN 109267974 A CN109267974 A CN 109267974A CN 201811448901 A CN201811448901 A CN 201811448901A CN 109267974 A CN109267974 A CN 109267974A
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- well
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- 238000005086 pumping Methods 0.000 title claims abstract description 18
- 238000011017 operating method Methods 0.000 title claims abstract description 8
- 239000002893 slag Substances 0.000 claims abstract description 31
- 239000003129 oil well Substances 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000000903 blocking effect Effects 0.000 claims abstract description 6
- 239000012530 fluid Substances 0.000 claims description 16
- 210000002445 nipple Anatomy 0.000 claims description 7
- 238000004880 explosion Methods 0.000 claims description 6
- 238000012937 correction Methods 0.000 claims description 3
- 238000005474 detonation Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 2
- 230000003628 erosive effect Effects 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 5
- 239000007921 spray Substances 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 38
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005422 blasting Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/116—Gun or shaped-charge perforators
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses Anti-blockage after a kind of perforation can with pressure turn of pumping integrated flow string and operating method, tubing string includes from top to bottom being sequentially connected oil pump sleeve, standing valve for oil-well pump assembly, cannonball type to pump lower blanking plug, big gun slag blocker, shell blocker, perforating gun string.It include: the purpose of horizon for really adjusting and keeping perforating gun face to be perforated as method；Lower sucker rod column；Casing is counter to suppress perforation；Rod tube is replaced；Plunger proposes pump barrel；It just suppresses and destroys blanking plug；Even polished rod visits pump examination and exhausts well.The present invention will remove perforation tubular column twice and a lower pump line column is integrated into one-trip string, it can be to avoid reservoir damage caused by pressure down-hole pump after high pressure oil wells perforation, and with operation is cumbersome, account for well duration, emits the problems such as spray is polluted, operating cost is high caused by pressure pump, and, the pump valve of the big gun slag blocking pumping tubing string generated after can preventing perforating bullet from exploding, guarantees this integrated pipe column construction reliability.
Description
Technical field
The present invention relates to Anti-blockages after field of oil field oil extraction more particularly to a kind of perforation can the with pressure turn of integrated production pipe taken out
Column and operating method.
Background technique
Effectively control subtracts well maintenance operation labour cost, realize cost efficiency be under low oil price old filed benefit develop must
So require.How to control and subtract overall maintenance cost, be emphasis that crude oil production unit effectively controls cost and current techniques personnel urgently
Main problem to be solved.Original oil zone deepens continuously with exploitation, and deep well accounting of taking out increases, while hole condition even more complex, causes
Flow chart is more, it is prominent to account for the problems such as well working hour is long, yield effect is big, and it is high to eventually lead to production cost.
In traditional handicraft, oil well needs to undergo twice main before operation under the premise of not needing carry out measure stimulation work
Flow chart, i.e. perforation and lower pump.Perforation is to enter wellbore predetermined level using special cumulative equipment and carry out explosion aperture to allow well
The activity of fluid-entering aperture eye in lower stratum.Perforating gun string is generally delivered to by face oil using private cable or oil pipe string
Layer position, by being powered, caber strikes or the modes such as fluid power pressurization carry out underground blasting to puncture casing, cement sheath, and in oil
The slit of certain length is formed in layer, and then links up the fluid course for setting up oil reservoir and pit shaft.Its tubular column structure is as shown in Figure 1, Figure 2
Shown, mature in view of traditional gun perforation process, which is not described herein again.And lower pump operation, be by screen casing (or floral tube, it is main to rise
The effect of overcurrent feed liquor), tail pipe string, oil well pump, oil pipe string, rod string (bottom connection oil pump plunger piston) successively lower going-into-well on pump
The activity in cylinder predetermined position.Lower pump line rod structure is as shown in Figure 3.Tripping in one is needed to plow it will be apparent that complete to bring in
Perforation tubular column → rise a perforation tubular column → tripping in one plow lower pump line column, i.e., need to carry out altogether three times rise lower tubular column operations.
This traditional operation mode is primarily present the drawbacks of three aspects:
First is that operation process needs repeatedly to play lower tubular column, causing operation to account for, the well time is long, labor intensity is high, process expense
It is high.
Second is that need to carry out kill-job after high pressure oil wells perforation in order to normally lower pump, and external working fluid will certainly be to storage
Layer causes a degree of injury, eventually leads to yield and is declined.
Third is that if must just take band pressure pump operation in order to avoid kill-job damages reservoir, not only need to employ
Operating Pressure equipment, and cause operation is cumbersome, account for the well time extend and a degree of well head emit spray pollution the problems such as.
Summary of the invention
After a kind of perforation is provided in view of the deficiency of the prior art
Anti-blockage can with pressure turn pumping integrated flow string and operating method, it will remove perforation tubular column twice and a lower pump line column is whole
Be combined into one-trip string, can to avoid after high pressure oil wells perforation press down-hole pump caused by reservoir damage, and with pressure pump caused by
Operation is cumbersome, account for well duration, emits the problems such as spray is polluted, operating cost is high, and it is possible to the big gun generated after preventing perforating bullet from exploding
The pump valve of slag blocking pumping tubing string, guarantees this integrated pipe column construction reliability.
The technical scheme adopted by the invention is as follows: after a kind of perforation Anti-blockage can with pressure turn of pumping integrated flow string,
It is characterized in that: pumping lower blanking plug, big gun including being from top to bottom sequentially connected oil pump sleeve, standing valve for oil-well pump assembly, cannonball type
Slag blocker, shell blocker, perforating gun string, big gun slag blocker are used to stop to intercept the big gun slag moment formed after perforating bullet explosion
On pour into inside tubing string, cannonball type pumps lower blanking plug and destroys shell fuse by fluid power, and can puncture big gun slag blocker, described
Shell blocker pumps the shell fuse of lower blanking plug to accept the cannonball type fallen.
According to the above technical scheme, the cannonball type pumps lower blanking plug and includes packer casing, is installed in packer casing
Dowel bushing, with the shell fuse of packer casing seal arrangement, the mandril being connected with shell fuse top, the shell fuse
It is fixed by a pin on dowel bushing, the upper end of the mandril abuts the valve ball of standing valve for oil-well pump assembly, and is in valve ball
The top of standing valve for oil-well pump.
According to the above technical scheme, axially sliding connects for the mandril and shell fuse, is configured with spring between the two.
According to the above technical scheme, it is equipped with centre bore in the upper end of shell fuse, is equipped with centre bore, the two in the lower end of mandril
Spring is set in the centre bore of socket.
According to the above technical scheme, it is configured with pressure cap outside the mandril, mandril is fitted on shell fuse by pressure cap, pushed up
Axially sliding configuration between bar and pressure cap.
According to the above technical scheme, the lower end of the shell fuse is in cone-shaped.
According to the above technical scheme, the big gun slag blocker includes top connection and lower contact, is equipped with gear in the junction of the two
Plate offers several apertures on baffle.
According to the above technical scheme, the shell blocker includes blocker ontology, is equipped on blocker ontology for pacifying
The interception seat of ramming fuse, on the interception seat.
According to the above technical scheme, intercepting seat is the net being equipped in blocker ontology top for intercepting the fuse of blanking plug
Lattice, grid court extend axially a substantial distance and form flow channels between grid.
After a kind of perforation as described above Anti-blockage can with pressure turn of pumping integrated flow string operating method: its feature exists
In: including following method:
After tubing string length is measured on S1, ground, it is sequentially connected tool combinations tripping in pit shaft.
S2, after perforating gun depth near target zone, in oil pipe tripping in depth correction instrument device measure flowline school depth pipe nipple
Exact depth；
S3, adjustment perforating gun depth: being deepened by well head or above mention oil pipe keeps perforating gun face to be perforated accurately to adjust
Purpose of horizon；
S4, lower sucker rod column: well head successively tripping in oil pump plunger piston and rod string, when plunger is on oil pump sleeve
When portion's set depth, well head suspends rod string in midair；
S5, casing are counter to suppress perforation: being applied in casing hydraulic by wellhead hydraulic pump truck, conducts fluid power to perforating gun
Place completes the perforation to target zone by fluid power detonation perforating gun；
S6, replaced rod tube: well head has replaced 1 to 3 R a T out, and perforating gun is proposed target zone coboundary
Set distance.
S7, plunger propose pump barrel: plunger is proposed pump barrel setting height.
S8, it just suppresses and destroys blanking plug: being applied by well head hydraulic, conduct fluid power to the big gun of standing valve for oil-well pump lower part
Bullet formula pumps at lower blanking plug, destroys shell fuse by fluid power, falls on shell blocker；
S9, even polished rod visit pump examination and exhaust well: well head switches connection polished rod, pumps, mentions by visiting again in plunger importing pump barrel
Extract is tried after dead space and complete well opens pumping.
It is obtained by the present invention to have the beneficial effect that
1, it will remove perforation tubular column twice and a lower pump line column is integrated into one-trip string, can penetrate to avoid high pressure oil wells
Reservoir damage caused by down-hole pump is pressed behind hole, and with operation is cumbersome caused by pressure pump, account for well duration, emits spray pollution, operation
The problems such as costly, and it is possible to which the pump valve of the big gun slag blocking pumping tubing string generated after preventing perforating bullet from exploding, guarantees that this is integrated
Tubing string construction reliability.
2, cannonball type pumps lower blanking plug and is mounted between oil well pump and big gun slag blocker, and the big gun slag that when perforation generates is by big gun slag
Blocker stops, and then pressurizes in well mouth oil pipe and cuts blanking plug pin；Pin is cut, the explosive force that moment generates will
Shell fuse projects, and big gun slag blocker is punctured, and guarantee has enough oil flow channels, so that oil well pump is worked normally, raising is penetrated
Hole and lower pump integration of operation one-time success rate.
3, it by setting shell blocker, does not on the one hand influence to produce the unimpeded of channel, on the other hand can accept and fall
Shell fuse, fall into shell fuse will not both in the inner hole of perforating system, perforating gun center flow channels, big gun will not be blocked
Bullet core son oil pipe between annular space overcurrent will not influence feed liquor discharge capacity, ensure that perforation and it is lower pump integration of operation it is smooth into
Row.
Detailed description of the invention
Fig. 1 is the cable transmission formula perforation tubular column schematic diagram referred in background technique.
Fig. 2 is the oil conduit conveying type gun perforation tubing string schematic diagram referred in background technique.
Fig. 3 is the down-hole pump pumping tubular column for extracting oil schematic diagram referred in background technique.
Fig. 4 can the with pressure turn of integrated flow string structural schematic diagram taken out for Anti-blockage after perforation provided by the invention.
Fig. 5 is that cannonball type pumps lower plug structure schematic diagram.
Fig. 6 is that cannonball type pumps lower blanking plug three-dimensional cutaway view.
Fig. 7 is big gun slag blocker structural schematic diagram.
Fig. 8 is the structural schematic diagram of the baffle of big gun slag blocker.
Fig. 9 is that shell fuse punctures big gun slag blocker structural schematic diagram.
Figure 10 is shell blocker three-dimensional cutaway view.
Wherein: I-oil reservoir；II-artificial bottom of a well；III-sand face；IV-casing；V-screen casing；VI-tail pipe；VII-takes out
Oil pump；VIII-oil pipe；Ⅸ-sucker rod；Ⅹ-well liquid；Ⅺ-private cable；1-oil pipe school depth pipe nipple；2-oil pump sleeves；
3-fixing valve cover of oil pump；3-1-standing valve for oil-well pump shell；4-standing valve for oil-well pump balls；5-standing valve for oil-well pump seats；
6-cannonball types pump lower blanking plug；6-1-mandril；6-2-pressure cap；6-3-cutting pin；6-4-sealing ring；6-5-spring；
6-6-shell fuse；6-7-packer casing；6-8-shear pin seat ring；7-big gun slag blockers；7-1-top connection；7-2-gear
Plate；7-3-lower contact；8-shell blockers；8-1-interception seat；8-2-flow channels；8-3-blocker ontology；9-penetrate
Hole rifle string.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
As shown in figure 4, present embodiments provide Anti-blockage after a kind of perforation can with pressure turn of pumping integrated flow string, including
From top to bottom the deeper pipe nipple 1 of sequentially connected oil pipe, oil pump sleeve 2, standing valve for oil-well pump assembly, cannonball type pump lower blanking plug
6, big gun slag blocker 7, shell blocker 8, perforating gun string 9.
The standing valve for oil-well pump assembly includes fixing valve cover of oil pump 3, standing valve for oil-well pump seat 5 and valve ball 4.Such as Fig. 5
It is shown, it is successively arranged standing valve for oil-well pump valve bonnet 3 and standing valve for oil-well pump seat 5 in the fixed valve chest 3-1 of oil pump, in oil well pump
Valve ball 4 is equipped between fixed valve valve bonnet 3 and standing valve for oil-well pump seat 5.
As shown in Figure 5,6, the cannonball type pumps lower blanking plug and includes packer casing 6-7, is installed in packer casing 6-7
On the shell fuse 6-6 and shell fuse 6-6 that interior dowel bushing 6-8 and packer casing passes through sealing ring 6-4 seal arrangement
The connected mandril 6-1 in portion, the shell fuse 6-6 are fixed on dowel bushing 6-8 by pin 6-3, the upper end of the mandril 6-1
The valve ball 4 of standing valve for oil-well pump assembly is abutted, and valve ball 4 is made to be in the top of standing valve for oil-well pump, i.e., mandril is made by valve ball 4
6-1 has the space of downlink.Axially sliding connects the mandril 6-1 and shell fuse 6-6, is equipped in the upper end of shell fuse 6-6
Centre bore is equipped with centre bore in the lower end of mandril 6-1, spring 6-5 is arranged in the centre bore of the two socket.It is configured outside mandril 6-1
There is pressure cap 6-2, mandril 6-1 is fitted on shell fuse 6-6 by pressure cap 6-2, is axially slided between mandril 6-1 and pressure cap 6-2
Move configuration.
Big gun slag blocker 7 is also connected between blanking plug 6 and shell blocker 8 under cannonball type pump, main function is
It pours into stop to intercept on the big gun slag moment formed after perforating bullet explosion into tail pipe, big gun slag blocking is avoided to pump lower blanking plug and pump
Valve causes tubing string to fail.
As shown in Figure 7,8, the big gun slag blocker includes top connection 7-1 and lower contact 7-2, is equipped in the junction of the two
Baffle 7-3, baffle, can be smooth when shell fuse punctures it with stronger plasticity by being made with certain thickness copper sheet
Flange is realized, to form the flow channels compared with big orifice.Uniformly distributed through-hole 7-2- in a cross-shaped mode is offered on baffle 7-3
1.Through-hole on baffle is in intensive tiny shape, can play the role of intercepting big gun slag, it is to be perforated after after pressure diffusion, big gun slag can be from
So sedimentation, will not pour in upwards again.The lower end of the shell fuse 6-6 is in cone-shaped, for puncturing baffle.
Through-hole on baffle acts on there are two mainly having: first is that the tear-off opening of similar stamp, makes shell fuse be easier to hit
Wear and tear the flow channels (as shown in Figure 9) that baffle forms big orifice；Second is that guaranteeing the hydro-cushion up and down of big gun slag blocker, prevent
Only higher liquid column hydrostatic pressure rises brokenly by baffle at deep-well.
8 main function of shell blocker is to avoid the blocking of shell fuse from penetrating to accept the shell fuse 6-6 fallen
Hole rifle center flow channels.As shown in Figure 10 comprising blocker ontology 8-3 is equipped on blocker ontology 8-3 for installing
Interception the seat 8-1, blocker ontology 8-3 and interception seat 8-1 of shell fuse 6-6 is integrally formed.Intercepting seat 8-1 is in blocker sheet
The grid for intercepting the fuse of blanking plug is equipped in body top, grid court extends axially a substantial distance and formed between grid
Circulation road.Grid includes two parallel baffles, and the arc section protruded outward, two circular arcs are equipped in the middle part of two baffles
The Duan Gongyuan heart and radiuses are waited, for the centre bore that two arc sections are formed for accepting shell fuse 6-6, remaining hole equally constitutes life
Is produced from channel, even if shell fuse, which is located at, intercepts seat 8-2, on, it will not will produce channel blockage.
Perforating gun string 9 is the underground blasting tool in petroleum industry for a kind of maturation of perforation, is broadly divided into and commonly penetrates
Hole rifle and two kinds of all through diameter perforating gun, the present invention preferentially uses all through diameter perforating gun, and explosion trailing flank shell hole and central tube can
To realize that all-pass interconnects, the structure of similar " screen casing " is become, overcurrent feed liquor function is played.And use common perforating gun can also be with
Overcurrent feed liquor function is realized after explosion.
The present invention also provides Anti-blockage after above-mentioned perforation can with pressure turn pumping integrated flow string operating method:
S1, lower combined string: after tubing string length is measured on ground, it is sequentially connected tool combinations tripping in pit shaft.
S2, gamma+magnetic orientation combination school are deep: after perforating gun depth near target zone, tripping in gamma+magnetic in oil pipe
Bit combination depth correction instrument device compares the exact depth of measurement flowline school depth pipe nipple 1 by ad hoc approach.
S3, the depth for adjusting perforating gun string 9: the oil pipe that depth is measured according to oil pipe school depth pipe nipple 1 and is measured out in advance
School depth pipe nipple is to perforating gun total length, and by well head intensification or above mention oil pipe keeps 9 face of perforating gun to be perforated accurately to adjust
Purpose of horizon.
S4, lower sucker rod column: well head successively tripping in oil pump plunger piston and rod string, when plunger is down toward oil pump sleeve 2
When 10 to the 20 meters of depth in top, well head suspends rod string in midair.
S5, casing are counter to suppress perforation: being applied in casing hydraulic by wellhead hydraulic pump truck, conducts fluid power to perforating gun
Place completes the perforation to target zone by fluid power detonation perforating gun.
S6, replaced rod tube: well head has replaced 1 to 3 R a T out, and perforating gun is proposed target zone coboundary
10 to 20 meters.
S7, plunger propose oil pump sleeve 2: plunger is proposed 10 to 20 meters of pump barrel.
S8, it is just suppressing and is destroying cannonball type and pump lower blanking plug 6: being applied in oil pipe by wellhead hydraulic pump truck hydraulic, making liquid
Power, which is conducted to the cannonball type of standing valve for oil-well pump lower part, to be pumped at lower blanking plug, destroys shell fuse 6-6 by fluid power, and puncture big gun slag
Blocker 7 is finally fallen on shell blocker 8.
S9, even polished rod visit pump examination and exhaust well: well head switches connection polished rod, pumps, mentions by visiting again in plunger importing pump barrel
Extract is tried after dead space and complete well opens pumping.
Claims (10)
1. after a kind of perforation Anti-blockage can with pressure turn pumping integrated flow string, it is characterised in that: including from top to bottom successively connecting
It connects oil pump sleeve, standing valve for oil-well pump assembly, cannonball type and pumps lower blanking plug, big gun slag blocker, shell blocker, perforating gun
String, big gun slag blocker are used to stop to intercept and pour into inside tubing string on the big gun slag moment formed after perforating bullet explosion, cannonball type pump
Lower blanking plug destroys shell fuse by fluid power, and can puncture big gun slag blocker, and the shell blocker is fallen to accept
Cannonball type pumps the shell fuse of lower blanking plug.
2. integrated flow string according to claim 1, it is characterised in that: it includes blocking that the cannonball type, which pumps lower blanking plug,
Device shell, the dowel bushing being installed in packer casing, with the shell fuse of packer casing seal arrangement, on shell fuse
The connected mandril in portion, the shell fuse are fixed by a pin on dowel bushing, and the upper end of the mandril abuts oil well pump and fixes
The valve ball of valve assembly, and valve ball is made to be in the top of standing valve for oil-well pump.
3. integrated flow string according to claim 2, it is characterised in that: axially sliding connects for the mandril and shell fuse
It connects, is configured with spring between the two.
4. integrated flow string according to claim 3, it is characterised in that: it is equipped with centre bore in the upper end of shell fuse,
It is equipped with centre bore in the lower end of mandril, spring is set in the centre bore of the two socket.
5. integrated flow string according to claim 4, it is characterised in that: be configured with pressure cap outside the mandril, pass through pressure
Mandril is fitted on shell fuse by cap, axially sliding configuration between mandril and pressure cap.
6. integrated flow string according to claim 2, it is characterised in that: the lower end of the shell fuse is in cone-shaped.
7. integrated flow string according to claim 1 or 2, it is characterised in that: the big gun slag blocker includes top connection
And lower contact, it is equipped with baffle in the junction of the two, several apertures are offered on baffle.
8. integrated flow string according to claim 1 or 2, it is characterised in that: the shell blocker includes blocker
Ontology, is equipped with the interception seat for installing shell fuse on blocker ontology, and the interception seat is equipped with flow channels.
9. integrated flow string according to claim 8, it is characterised in that: intercepting seat is to set in blocker ontology top
There is the grid of the fuse for intercepting blanking plug, grid court extends axially a substantial distance and forms flow channels between grid.
10. after a kind of perforation as described in any claim in the claims 1-9 Anti-blockage can with pressure turn of pumping it is integrated
The operating method of flow string: it is characterized by comprising following methods:
After tubing string length is measured on S1, ground, it is sequentially connected tool combinations tripping in pit shaft.
S2, after perforating gun depth near target zone, in oil pipe tripping in depth correction instrument device measurement flowline school depth pipe nipple it is accurate
Depth；
S3, adjustment perforating gun depth: being deepened by well head or mentions oil pipe above accurately to adjust the mesh for keeping perforating gun face to be perforated
Layer position；
S4, lower sucker rod column: well head successively tripping in oil pump plunger piston and rod string, when plunger is set down toward oil pump sleeve top
When depthkeeping is spent, well head suspends rod string in midair；
S5, casing are counter to suppress perforation: applied in casing by wellhead hydraulic pump truck hydraulic, conducts fluid power to perforating gun,
The perforation to target zone is completed by fluid power detonation perforating gun；
S6, replaced rod tube: well head has replaced 1 to 3 R a T out, and perforating gun is proposed the setting of target zone coboundary
Distance.
S7, plunger propose pump barrel: plunger is proposed pump barrel setting height.
S8, it just suppresses and destroys blanking plug: being applied by well head hydraulic, conduct fluid power to the cannonball type of standing valve for oil-well pump lower part
It pumps at lower blanking plug, destroys shell fuse by fluid power, fall on shell blocker；
S9, even polished rod visit pump examination and exhaust well: well head switches connection polished rod, pumps visiting again in plunger importing pump barrel, has mentioned erosion control
Away from rear examination Extract and complete well opens pumping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811448901.1A CN109267974B (en) | 2018-11-28 | 2018-11-28 | Anti-blocking integrated oil production string capable of being rotated and pumped under pressure after perforation and operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811448901.1A CN109267974B (en) | 2018-11-28 | 2018-11-28 | Anti-blocking integrated oil production string capable of being rotated and pumped under pressure after perforation and operation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109267974A true CN109267974A (en) | 2019-01-25 |
| CN109267974B CN109267974B (en) | 2024-04-16 |
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| CN201811448901.1A Active CN109267974B (en) | 2018-11-28 | 2018-11-28 | Anti-blocking integrated oil production string capable of being rotated and pumped under pressure after perforation and operation method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113378438A (en) * | 2021-06-17 | 2021-09-10 | 长江大学 | Method and system for analyzing reliability of perforating string system and electronic equipment |
| CN113738314A (en) * | 2020-05-29 | 2021-12-03 | 中国石油化工股份有限公司 | Integrated pumping linkage pressurized rotary pumping pipe column, plugging tool and plugging method |
| CN114109270A (en) * | 2020-08-31 | 2022-03-01 | 中国石油天然气股份有限公司 | Perforating steam injection production primary tubular column and perforating steam injection production primary oil extraction method |
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| US4917189A (en) * | 1988-01-25 | 1990-04-17 | Halliburton Company | Method and apparatus for perforating a well |
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| CN113738314A (en) * | 2020-05-29 | 2021-12-03 | 中国石油化工股份有限公司 | Integrated pumping linkage pressurized rotary pumping pipe column, plugging tool and plugging method |
| CN113738314B (en) * | 2020-05-29 | 2024-03-22 | 中国石油化工股份有限公司 | Integrated pump-suction combined operation pressurized rotary pump pipe column and plugging tool and method |
| CN114109270A (en) * | 2020-08-31 | 2022-03-01 | 中国石油天然气股份有限公司 | Perforating steam injection production primary tubular column and perforating steam injection production primary oil extraction method |
| CN114109270B (en) * | 2020-08-31 | 2024-05-28 | 中国石油天然气股份有限公司 | Perforating and steam injection production primary pipe column and perforating and steam injection production primary oil extraction method |
| CN113378438A (en) * | 2021-06-17 | 2021-09-10 | 长江大学 | Method and system for analyzing reliability of perforating string system and electronic equipment |
| CN113378438B (en) * | 2021-06-17 | 2022-07-19 | 长江大学 | Method and system for analyzing reliability of perforating string system and electronic equipment |
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