CN110273669A - Method for operating a production well - Google Patents
Method for operating a production well Download PDFInfo
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- CN110273669A CN110273669A CN201810209464.1A CN201810209464A CN110273669A CN 110273669 A CN110273669 A CN 110273669A CN 201810209464 A CN201810209464 A CN 201810209464A CN 110273669 A CN110273669 A CN 110273669A
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- oil
- plug
- operational method
- bridge plug
- blocked
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- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- 238000000605 extraction Methods 0.000 claims abstract description 30
- 210000002445 nipple Anatomy 0.000 claims description 24
- 239000002195 soluble material Substances 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000003129 oil well Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000011144 upstream manufacturing 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
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/261—Separate steps of (1) cementing, plugging or consolidating and (2) fracturing or attacking the formation
Landscapes
- 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)
- Prostheses (AREA)
Abstract
The invention provides an operation method of an oil production well, which comprises the following steps: step S1: performing fracturing treatment on an oil reservoir stratum; step S2: placing the plugging bridge plug and the plugging plug into the oil production well pipe column, setting the plugging bridge plug at a preset position in the oil production well pipe column, and plugging the plugging bridge plug; step S3: lowering the oil extraction equipment into the oil extraction well pipe column; step S4: the plugging plug is separated from the plugging bridge plug to realize oil extraction production. The technical scheme of the invention solves the problems of more equipment, long period, more working procedures and high cost in fracturing operation of the oil production well in the prior art.
Description
Technical field
The present invention relates to technical field of petroleum extraction, in particular to a kind of operational method of producing well.
Background technique
Densification oil and gas development becomes the hot spot for changing international energy pattern at present, due to the geology characteristic of fine and close oil gas, only
The mode of volume fracturing can be taken just to be able to achieve effective exploitation.At present the common operation mode of industry be using 4.5in or
5.5.in cased hole completion is transformed by the way of casing fracturing, with casing blowout prevention, production after transformation.After this mode is given
Phase oil recovery production wax removal and well control all bring security risk.
The mode for solving this security risk at present is first drain decompression after pressure break, etc. pressure drop to Ground Operation equipment and permit
Perhaps it after pressure, using well head Refrigeration Technique by frozen block in the casing of well head position, tears well head open, operation device under pressure is installed.To well
After mouth frozen block releases, the oil pipe of calker in tripping in band.Under oil pipe in place after, sit tubing hanger, seal oil jacket annulus, tear blowout prevention open
Device sits well head.Well head is sat straight after pressure testing qualification, is released, is carried out just using steel wire or by the blanking plug in oil pipe by the way of suppressing
Normal oil producing operation.
This operation mode is a kind of most operation mode of current application, but this operation is more in the presence of equipment is employed, week
The problems such as phase is long, and flow chart is more, costly, increase unconventional reservoir builds production cost.
Summary of the invention
The main purpose of the present invention is to provide a kind of operational methods of producing well, to solve producing well in the prior art
Fracturing work employs that equipment is more, and the period is long, and flow chart is more, costly problem.
To achieve the goals above, the present invention provides a kind of operational method of producing well, operational method includes: step
S1: frac treatment is carried out to reservoir formation；Step S2: blocked bridge plug and closure plug are put into producing well tubing string, bridge is blocked
Plug sets the predeterminated position in producing well tubing string, blocks plug and blocks on blocked bridge plug；Step S3: oil production equipment is transferred to adopting
In oil well pipe；Step S4: make to block plug disengaging blocked bridge plug, to realize production of recovering the oil.
Further, step S2 further include: set blocked bridge plug using cable or coiled tubing band setting tool
In producing well tubing string.
Further, blocked bridge plug and/or closure plug are made of soluble material.
Further, oil production equipment includes oil pipe, step S4 further include: from well head to oil pipe pressurize, will block fill in from
It beats and takes off on blocked bridge plug, and realize that oil reservoir self-spray produces.
Further, operational method include thes steps that carrying out S5 after step s4, and step S5 includes: to work as strata pressure
After decline, it is put into oil extraction pump in oil pipe, artificial lift is carried out to oil reservoir to realize.
Further, oil pipe includes oil extraction pump seating nipple and plugging device seating nipple, step S5 further include: from well head to oil pipe
Interior investment oil line stopper, oil line stopper are fallen in plugging device seating nipple, to insulate strata pressure；By oil extraction pump be put into
In oil extraction pump seating nipple；It pressurizes, oil line stopper is beaten from plugging device seating nipple de- to oil pipe from well head.
Further, oil line stopper is made of soluble material.
Further, oil extraction pump is insert pump.
Further, blocked bridge plug includes central tube, the lower end of central tube and closure plug connection.
Further, the upper end of central tube is provided with barrier structure.
It applies the technical scheme of the present invention, in carrying out operation process, is put into closure after frac treatment in oil well pipe
Bridge plug and closure plug, and then insulate strata pressure.By in oil production equipment tripping in oil well pipe after packing strata pressure, then will
It blocks plug and beats and take off, oil reservoir is connected to realization production with oil production equipment.The structure letter of blocked bridge plug and closure plug in above-mentioned operational method
Single, at low cost, difficulty of construction is low, reduces duty cycle.Therefore technical solution of the present invention solves oil recovery in the prior art
Well fracturing work employs that equipment is more, and the period is long, and flow chart is more, costly problem.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 shows the schematic diagram of the fracturing step of the embodiment of the operational method of producing well according to the present invention；
Fig. 2 shows the filling in blocked bridge plug and closure of the operational method of producing well in Fig. 1 to be put into producing well tubing string
Structural schematic diagram；
Fig. 3 shows being put into oil pipe to producing well tubing string of the operational method of producing well in Fig. 1, and the closure is filled in
Beat de- structural schematic diagram；
The blocked bridge plug that Fig. 4 shows the operational method of producing well in Fig. 1 realizes that the structure of self-spray production is shown after being dissolved
It is intended to；
Fig. 5 shows being put into oil line stopper to the knot in plugging device seating nipple of the operational method of producing well in Fig. 1
Structure schematic diagram；And
Fig. 6 shows being put into oil extraction pump to rear in oil extraction pump seating nipple for the operational method of producing well in Fig. 1 and realizes oil
Hide the structural schematic diagram of artificial lift production.
Wherein, the above drawings include the following reference numerals:
10, blocked bridge plug；20, plug is blocked；30, producing well tubing string；40, oil production equipment；41, oil pipe；411, operation of oil pump
Cylinder；412, plugging device seating nipple；42, oil extraction pump；50, oil line stopper.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the application and its application or making
Any restrictions.Based on the embodiment in the application, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall in the protection scope of this application.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
As shown in Figures 1 to 6, this application provides a kind of operational method of producing well, the operational method packets of the present embodiment
It includes:
Step S1: frac treatment is carried out to reservoir formation；
Step S2: blocked bridge plug 10 and closure plug 20 are put into producing well tubing string 30, blocked bridge plug 10, which is set, to be adopted
Predeterminated position in oil well pipe 30 blocks plug 20 and blocks on blocked bridge plug 10；
Step S3: will be in the decentralization to producing well tubing string 30 of oil production equipment 40；
Step S4: make to block 20 disengaging blocked bridge plug 10 of plug, to realize production of recovering the oil.
Envelope is put into after frac treatment in oil well pipe in carrying out operation process using the technical solution of the present embodiment
Stifled bridge plug 10 and closure plug 20, and then insulate strata pressure.By 40 tripping in of oil production equipment to the well casing that recovers the oil after packing strata pressure
In column 30, it then will block plug 20 dozens and take off, oil reservoir is connected to realization production with oil production equipment.Blocked bridge plug 10 in above-mentioned operational method
Simple with the structure of closure plug 20, at low cost, difficulty of construction is low, reduces duty cycle.Therefore the technical solution solution of the present embodiment
That has determined producing well fracturing work in the prior art employs that equipment is more, and the period is long, and flow chart is more, costly problem.
Preferably, in the technical scheme of this embodiment, step S2 further include: set using cable or coiled tubing band
Tool sets blocked bridge plug 10 in producing well tubing string 30.
Preferably, in the technical scheme of this embodiment, blocked bridge plug 10 and/or closure plug 20 are made of soluble material.
Specifically, blocked bridge plug 10 and closure plug 20 can be made of soluble material.After oil production equipment 40 is transferred in place, plug is blocked
20 are dissolved.After a period of time, blocked bridge plug 10 is also dissolved.From fig. 4 it can be seen that blocked bridge plug 10 and closure at this time
Plug 20 is dissolved, and oil production equipment 40 is connected to bottom oil reservoir and realizes production.
As shown in figure 3, in the technical scheme of this embodiment, oil production equipment 40 includes oil pipe 41, step S4 further include: from
Well head to oil pipe 41 pressurize, will block plug 20 beaten from blocked bridge plug 10 take off, and realize oil reservoir self-spray production.Specifically, oily
The tripping in from well head of pipe 41.It after 41 tripping in predetermined position of oil pipe, is suppressed from well head to oil pipe 41, pressure conduction is filled in closure
Plug 20 will be blocked after on 20 and will be beaten from blocked bridge plug 10 and will be taken off, and realize that oil pipe 41 is connected to bottom oil reservoir.
As shown in Figure 5 and Figure 6, in the technical scheme of this embodiment, operational method further includes carrying out after step s4
Step S5, step S5 include: when strata pressure decline after, oil extraction pump 42 is put into oil pipe 41, with realize to oil reservoir carry out
Artificial lift.Specifically, in the initial stage of oil recovery, since bottom pressure is larger, oil pipe 41 can be simply placed in and carry out self-spray life
It produces.After oil recovery carries out a period of time, the decline of bottom pressure is unable to satisfy the condition of self-spray production.It is needed at this time by oil extraction pump
42 are put into in oil pipe 41 and realizing artificial lift.
As shown in fig. 6, in the technical scheme of this embodiment, oil pipe 41 includes oil extraction pump seating nipple 411 and plugging device work
Make cylinder 412, step S5 further include: oil line stopper 50 is put into oil pipe 41 from well head, oil line stopper 50 falls to closure
In device seating nipple 412, to insulate strata pressure；Oil extraction pump 42 is put into oil extraction pump seating nipple 411；From well head to oil pipe 41
Pressurization beats oil line stopper 50 de- from plugging device seating nipple 412.Specifically, when needing to transfer oil extraction pump 42, first from
The well head of oil pipe 41 puts into oil line stopper 50, oil line stopper 50 fall into plugging device seating nipple 412 after by strata pressure every
Absolutely.Then it by the lower section to oil extraction pump seating nipple 411 of oil extraction pump 42, then pressurizes to oil pipe 41 from well head, by oil line stopper
50 beat de- from plugging device seating nipple 412, and oil extraction pump 42 is connected to oil reservoir at this time, realization artificial lift.
Preferably, oil line stopper 50 is made of soluble material.When oil extraction pump 42 is put into oil extraction pump seating nipple 411
Afterwards, 50 automatic dissolving of oil line stopper is to realize connection.Above structure can further reduce the cost, and simplify technique.
Preferably, above-mentioned oil extraction pump 42 is insert pump.Certainly, oil extraction pump 42 or other common pump knots
Structure.
As shown in Fig. 2, in the technical scheme of this embodiment, blocked bridge plug 10 includes central tube, the lower end of central tube with
Block 20 connection of plug.Specifically, above structure, which allows, blocks plug 20 and bears pressure from below, namely bears to block plug
20 pressure away from well head direction.Meanwhile it blocking plug 20 when closure plug 20 bears the pressure come from above and can be beaten and taking off.
Preferably, in the technical scheme of this embodiment, the upper end of central tube is provided with barrier structure.Specifically, when more
When a blocked bridge plug 10 and closure plug 20 are arranged in series, when the closure plug 20 of upstream, which is beaten, to be taken off, barrier structure can seal in a manner of
20 are blocked by the center blockage of the blocked bridge plug 10 in downstream.Above-mentioned barrier structure can advantageously be baffle, block reinforcement etc..
According to foregoing description, the operational method of the producing well of the application is had the following characteristics that
The application provide it is a kind of for after casing fracturing with the operational method that pumps, predominantly casing under pressure oil pipe no killing well
Band depresses pump under oil pipe and later period no killing well and provides a kind of cost-effective operational method after fractured well pressure break, can be by job that requires special skills
Be converted into routine work, have process simple, employ that equipment is few, duty cycle short feature.
This application involves oil-gas field development fields, it solves band pressure oil pipe operation work after current casing fracturing well pressure break
The problem that sequence is cumbersome, it is more to employ equipment, the period is long is realized and simplifies process, shortens duty cycle, reduces the purpose built and produce cost.
Technical scheme is mainly realized by following measures:
1, fracturing reform is carried out to interval of interest using casing fracturing technique, open hole packer+sliding sleeve or speed can be used
Bore the techniques such as bridge plug partial pressure or well cementation sliding sleeve.Pit shaft is carried out according to process requirement after pressure break and improves processing, is such as bored abrading-ball seat, is bored mill
Bridge plug proposes the operations such as coiled tubing opener, it is ensured that 100 meters of range inner sleeve latus rectums below deep position meet under oil pipe
Lower tool operation requirement；
2,10 tripping in design position of blocked bridge plug is set using cable or coiled tubing band setting tool after drifting is qualified
Blocked bridge plug 10.Well head verifies the sealing performance of blocked bridge plug 10 by the way of bleeding off pressure.After blocked bridge plug 10 sets qualification, mention
Tool in well out starts the lower oil pipe 41 of group；
3,41 the foot section brought plugging device seating nipple 412 of oil pipe and operation of oil pump cylinder 411.Under oil pipe 41 in place after, sit well head, from
Well head suppresses that will to block plug 20 dozens de-, turns conventional oil flow production processes, blocked bridge plug 10 and block plug 20 in subsurface environment by
Gradually dissolve.Blocked bridge plug 10 realizes casing full-bore after dissolving；
4, when needing to turn artificial lift, oil line stopper 50 is put into from well head, oil line stopper 50 falls to plugging device work
Make 412 position of cylinder, insulates strata pressure.50 sealing reliability of oil line stopper is verified on ground by the way of bleeding off pressure, and sealing is closed
Lower insert pump, sucker rod are organized after lattice；
5, it touches pump under insert pump afterwards in place, well head is installed, dish pumping is suppressed from oil pipe 41 and oil line stopper 50 is beaten to de-, reality
The operation purpose pumped under existing no killing well.
Here is the further optimization and/or improvements to above-mentioned technical proposal:
1, above-mentioned blocked bridge plug 10 is process using soluble material, can also be used speed bore bridge plug+solvable closures fill in or
Big orifice bridge plug+solvable combination for blocking plug further reduces the cost；
2, above-mentioned blocked bridge plug 10 uses bi-directional slip structure, can seal the pressure difference from upper and lower both direction；
3, the central tube of above-mentioned blocked bridge plug 10 has through-hole, can meet the requirement of production drain.Central tube lower end shear pin
It is connect with plug 20 is blocked, the pressure difference of the receiving of blocked bridge plug 10 from below can be made, and can be realization and suppress and will seal from upper end
Block 20 dozens of de- functions；
4, design has lever in the central tube upper channel of above-mentioned blocked bridge plug 10, can prevent multiple blocked bridge plugs 10 from going here and there
The fluid course of the 20 blocking lower part blocked bridge plug 10 of closure plug of top blocked bridge plug 10 when connection uses；
5, above-mentioned 10 both ends of blocked bridge plug design has anti-rotation structure, and multiple bridge plugs may be implemented and bore mill；
6, insert pump seating nipple and plugging device seating nipple can be increased on above-mentioned oil pipe 41, it can be achieved that pumping under later period no killing well
Job requirements；
7, soluble material can be used in oil line stopper 50, can beat oil line stopper 50 and take off to shaft bottom.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
Up to the unlimited scope of the present application processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing
The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation
A part of book.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label
Similar terms are indicated in following attached drawing with letter, therefore, once it is defined in a certain Xiang Yi attached drawing, then subsequent attached
It does not need that it is further discussed in figure.
In the description of the present application, it is to be understood that the noun of locality such as " front, rear, top, and bottom, left and right ", " laterally, vertical,
Vertically, orientation or positional relationship indicated by level " and " top, bottom " etc. is normally based on orientation or position shown in the drawings and closes
System is merely for convenience of description the application and simplifies description, and in the absence of explanation to the contrary, these nouns of locality do not indicate that
It must have a particular orientation or be constructed and operated in a specific orientation with the device or element for implying signified, therefore cannot manage
Solution is the limitation to the application protection scope；The noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
Apply for the limitation of protection scope.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of operational method of producing well, which is characterized in that the operational method includes:
Step S1: frac treatment is carried out to reservoir formation；
Step S2: blocked bridge plug (10) and closure plug (20) are put into producing well tubing string (30), the blocked bridge plug (10)
It sets in the interior predeterminated position of the producing well tubing string (30), the closure plug (20) blocks on the blocked bridge plug (10)；
Step S3: will be in oil production equipment (40) decentralization to producing well tubing string (30)；
Step S4: making the closure plug (20) be detached from the blocked bridge plug (10), to realize production of recovering the oil.
2. operational method according to claim 1, which is characterized in that the step S2 further include:
The blocked bridge plug (10) is set in the producing well tubing string (30) using cable or coiled tubing band setting tool
It is interior.
3. operational method according to claim 1, which is characterized in that the blocked bridge plug (10) and/or closure plug
(20) it is made of soluble material.
4. operational method according to claim 1, which is characterized in that the oil production equipment (40) includes oil pipe (41), institute
State step S4 further include:
It pressurizes, closure plug (20) is beaten from the blocked bridge plug (10) de- and real to the oil pipe (41) from well head
Existing oil reservoir self-spray production.
5. operational method according to claim 4, which is characterized in that the operational method further include the step S4 it
The step S5, the step S5 carried out afterwards include:
After strata pressure decline, oil extraction pump (42) are put into the oil pipe (41), artificial lift is carried out to oil reservoir to realize.
6. operational method according to claim 5, which is characterized in that the oil pipe (41) includes oil extraction pump seating nipple
(411) and plugging device seating nipple (412), the step S5 further include:
Oil line stopper (50) are put into the oil pipe (41) from well head, the oil line stopper (50) falls to the closure
In device seating nipple (412), to insulate strata pressure；
The oil extraction pump (42) is put into oil extraction pump seating nipple (411)；
It pressurizes from well head to the oil pipe (41), by the oil line stopper (50) from the plugging device seating nipple (412)
It beats de-.
7. operational method according to claim 6, which is characterized in that the oil line stopper (50) uses soluble material system
At.
8. operational method according to claim 6, which is characterized in that the oil extraction pump (42) is insert pump.
9. operational method according to claim 1, which is characterized in that the blocked bridge plug (10) includes central tube, described
(20) are filled in the closure and are connect in the lower end of central tube.
10. operational method according to claim 9, which is characterized in that the upper end of the central tube is provided with barrier structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810209464.1A CN110273669A (en) | 2018-03-14 | 2018-03-14 | Method for operating a production well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810209464.1A CN110273669A (en) | 2018-03-14 | 2018-03-14 | Method for operating a production well |
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| CN201810209464.1A Pending CN110273669A (en) | 2018-03-14 | 2018-03-14 | Method for operating a production well |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115075773A (en) * | 2021-03-12 | 2022-09-20 | 中国石油天然气股份有限公司 | Oil and gas well production method |
| CN119434894A (en) * | 2025-01-13 | 2025-02-14 | 新疆石油管理局有限公司 | A soluble rapid drilling combined bridge plug |
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| CN105593464A (en) * | 2013-12-27 | 2016-05-18 | 株式会社吴羽 | Boring plug provided with diametrically expandable annular rubber member formed from degradable rubber material |
| CN105934481A (en) * | 2014-03-11 | 2016-09-07 | 株式会社吴羽 | Molding having effective thickness of 1 mm or more and containing aliphatic polyester resin, and downhole tool member for recovery of hydrocarbon resources |
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| CN107304664A (en) * | 2016-04-22 | 2017-10-31 | 中国石油化工股份有限公司 | A kind of bundle of capillary tubes christmas device and method |
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| CN115075773A (en) * | 2021-03-12 | 2022-09-20 | 中国石油天然气股份有限公司 | Oil and gas well production method |
| CN115075773B (en) * | 2021-03-12 | 2024-05-28 | 中国石油天然气股份有限公司 | Oil and gas well production method |
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Application publication date: 20190924 |