CN207332777U - Injection-production column jacket - Google Patents

Injection-production column jacket Download PDF

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Publication number
CN207332777U
CN207332777U CN201720674972.8U CN201720674972U CN207332777U CN 207332777 U CN207332777 U CN 207332777U CN 201720674972 U CN201720674972 U CN 201720674972U CN 207332777 U CN207332777 U CN 207332777U
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CN
China
Prior art keywords
note
once
valve
injection
rod
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Application number
CN201720674972.8U
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Chinese (zh)
Inventor
徐海霞
吕孝明
李岩
庹维志
赵树伟
安志杰
张杨
陈平
钟婷
兰美丽
王鹏
贺梦琦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Petrochina Co Ltd
China Petroleum and Natural Gas Co Ltd
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China Petroleum and Natural Gas Co Ltd
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Priority to CN201720674972.8U priority Critical patent/CN207332777U/en
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Abstract

The utility model provides a kind of injection-production column jacket, lid injection-production column jacket includes oil pipe, sucker rod, note and adopts once pump, screen casing and silk plug, note is adopted the upper end once pumped and is connected with oil pipe, and note adopts the lower end once pumped and the upper end of screen casing connects, and the lower end of screen casing sets silk plug to be closed.Sucker rod is threaded through in oil pipe, and sucker rod is adopted the undergauge connecting rod once pumped with note and is connected, undergauge connecting rod is driven to move by sucker rod, adjustable note adopts once pump and carries out gas injection or oil recovery by oil pipe, adopt once to pump using note and gas injection is carried out by oil pipe in gas injection, it is possible to reduce gas injection is for the problem of casing corrosion cracking, casing damage during oil.

Description

Injection-production column jacket
Technical field
It the utility model is related to oil-gas mining technology, more particularly to a kind of injection-production column jacket.
Background technology
It is one of main mining type of fractured-cavernous carbonate reservoir that oily technique is replaced in gas injection.Fractured-cavernous carbonate reservoir Reservoir space based on solution cavity, is different from clastic rock oil reservoir, gravitational differentiation space bigger, divides different effect more preferable.
Current gas injection is mainly what is carried out by the way of annular air injection for the mining type of oil.Injection gas displacement mechanism: Using N2 and the density contrast of crude oil, injected by oil pipe annular space at the top of air accumulation solution cavity, top attic oil displacement is displaced Come.Gas injection replaces oily technique to undergo gas injection-closing well is replaced-and exploits the iterative cycles of three phases.
However, above-mentioned gas injection replaces oily technique to use annular air injection in gas injection process, operating cost is reduced with this, still The problem of causing casing corrosion cracking, casing damage.
Utility model content
The utility model provides a kind of injection-production column jacket, and for solving in such scheme, gas injection replaces oily technique in gas injection process It is middle to use annular air injection, the problem of reducing operating cost with this, but cause casing corrosion cracking, casing damage.
The utility model provides a kind of injection-production column jacket, including:Oil pipe, sucker rod, note adopt once pump, screen casing and silk plug;
The note is adopted the upper end once pumped and is connected with oil pipe, and the note adopts the lower end once pumped and the upper end of screen casing connects, The lower end of the screen casing sets the silk plug to be closed;
The sucker rod is threaded through in the oil pipe, and the sucker rod is adopted the undergauge connecting rod once pumped with the note and connected Connect;The undergauge connecting rod is driven to move by the sucker rod, the adjustable note adopts once pump and carries out gas injection or oil recovery.
In a kind of concrete implementation mode, packer is provided with the outside annular space of the oil pipe, for annular space to be sealed Close.
In a kind of concrete implementation mode, the packer is located at the oil reservoir in shaft bottom.
In a kind of concrete implementation mode, the note adopts the top connection once pumped, fixes valve outer barrel, standing valve cover, consolidates Determine valve seat, fixed valve lower contact, pump barrel and lower contact pass sequentially through screwed connection and are integrated, form the note and adopt consolidating of once pumping Determine component;
The note adopts lock footpath connecting rod, polished rod, delivery connection, pull rod and the travelling valve once pumped and passes sequentially through screw thread company Connect, form the note and adopt the moving parts once pumped;
The note is adopted the fixation valve once pumped and is prevented on the fixed valve base, and the movement of the moving parts can drive institute The movement of fixed valve is stated, controls the injection-production column jacket to be recovered the oil or gas injection.
In a kind of concrete implementation mode, the note adopts once pump and further includes plunger;The travelling valve seat and the column Plug is integrated by screwed connection, the pull rod exterior measuring being set between the delivery connection and the travelling valve.
In a kind of concrete implementation mode, the fixed valve pocket is located on the polished rod, and the fixed valve is positioned at described Between standing valve cover and the fixed valve base.
In a kind of concrete implementation mode, the travelling valve and the fixed valve are mechanically to open strong valve closing by force.
Injection-production column jacket provided by the utility model, including oil pipe, sucker rod, note adopt once pump, screen casing and silk plug, and note adopts one The upper end of secondary pump is connected with oil pipe, and note adopts the lower end once pumped and the upper end of screen casing connects, and the lower end of screen casing sets silk plug to carry out Closing.Sucker rod is threaded through in oil pipe, and sucker rod is adopted the undergauge connecting rod once pumped with note and is connected, and undergauge is driven by sucker rod Connecting rod moves, and adjustable note adopts once pump and carries out gas injection or oil recovery by oil pipe.Adopt once to pump using note and pass through in gas injection Oil pipe carries out gas injection, it is possible to reduce gas injection is for the problem of casing corrosion cracking, casing damage during oil.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are Some embodiments of the utility model, for those of ordinary skill in the art, can also obtain other according to these attached drawings Attached drawing.
Fig. 1 is the structure diagram of injection-production column jacket provided by the utility model;
Fig. 2 is that the note in injection-production column jacket provided by the utility model adopts the structure diagram once pumped;
Fig. 3 is the structure diagram when note in injection-production column jacket provided by the utility model adopts once pump gas injection;
Fig. 4 is the structure diagram when note in injection-production column jacket provided by the utility model adopts once pump oil recovery.
Description of reference numerals:
100:Oil pipe;
200:Sucker rod;
300:Note, which is adopted, once to be pumped;
400:Screen casing;
500:Silk plug;
600:Packer;
700:Annular space;
1:Top connection;
2:Fixed valve outer barrel;
3:Standing valve cover;
4:Fixed valve;
5:Fixed valve base;
6:Fixed valve lower contact;
7:Undergauge connecting rod;
8:Polished rod;
9:Delivery connection;
10:Pull rod;
11:Pump barrel;
12:Plunger;
13:Travelling valve seat;
14:Travelling valve;
15:Lower contact.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model Example, those of ordinary skill in the art's all other embodiments obtained without creative efforts, belongs to The scope of the utility model protection.
To overcome the problem of cracking and damage for carrying out casing caused by oily technique is replaced in gas injection using annular air injection at present, this Utility model, which provides one kind, can realize that note adopts integrated tubing string, carry out gas injection by oil pipe, oil recovery similarly passes through oil pipe To realize, that is, realize gas-injection oil-production one, effectively reduce gas injection for oil during casing corrosion crack, casing damage the problem of.
Fig. 1 is the structure diagram of injection-production column jacket provided by the utility model.As shown in Figure 1, note provided in this embodiment Adopting tubing string includes:
Oil pipe 100, sucker rod 200, note adopt once pump 300, screen casing 400 and silk plug 500;
The upper end that the note adopts once pump 300 is connected with oil pipe 100, and the note adopts the once lower end of pump 300 and screen casing 400 Upper end connection, the lower end of the screen casing 400 sets the silk plug 500 to be closed;
The sucker rod 200 is threaded through in the oil pipe, and the sucker rod 200 adopts the contracting of once pump 300 with the note Footpath connecting rod connection;The undergauge connecting rod is driven to move by the sucker rod 200, the adjustable note adopts once pump and carries out gas injection Or recover the oil.
In the present solution, setting note to adopt between oil pipe 100 and screen casing 400 once pumps 300, which adopts the contracting of once pump 300 Footpath connecting rod is connected with sucker rod 200, can moving up and down with sucker rod, drive note adopt once pump 300 in valve on moves down Dynamic, control carries out gas injection, or the process recovered the oil by oil pipe 100.
In a kind of concrete implementation mode, packer 600 is provided with the outside annular space of the oil pipe, for by annular space Closing.
The packer 600 is arranged in the annular space 700 between casing and oil pipe, and annular space is divided into two section up and down, and mutually It is obstructed.
In general, the packer 600 is located at the position in the oil reservoir in shaft bottom.
Injection-production column jacket provided in this embodiment, drives undergauge connecting rod to move by sucker rod, and it is logical that adjustable note adopts once pump Cross oil pipe and carry out gas injection or oil recovery.Adopt once to pump using note and gas injection is carried out by oil pipe in gas injection, it is possible to reduce gas injection is replaced During oil the problem of casing corrosion cracking, casing damage.
Fig. 2 is that the note in injection-production column jacket provided by the utility model adopts the structure diagram once pumped, as shown in Fig. 2, On the basis of above-described embodiment, the note that this programme is provided in a kind of injection-production column jacket adopts the structure once pumped.
The note adopts the top connection once pumped, fixed valve outer barrel, standing valve cover, fixed valve base, fixed valve lower contact, pump barrel Screwed connection is passed sequentially through with lower contact to be integrated, and is formed the note and is adopted the fixation kit once pumped;The note adopts what is once pumped Lock footpath connecting rod, polished rod, delivery connection, pull rod and the travelling valve pass sequentially through screwed connection, form the note and adopt what is once pumped Moving parts;The note is adopted the fixation valve once pumped and is prevented on the fixed valve base, and the movement of the moving parts can drive The fixed valve movement, controls the injection-production column jacket to be recovered the oil or gas injection.
It is used in the present solution, note adopts once pump in the oil recovery process of vertical well, which, which adopts once pump 300, includes consolidating for pump Determine group member and moving parts.
Wherein, fixation kit includes from top to bottom:It is top connection 1, fixed valve outer barrel 2, standing valve cover 3, fixed valve base 5, solid Determine valve lower contact 6, pump barrel 11 and lower contact 15, each structure time by screwed connection, finally forms the note and adopts and once pump 300 fixation kit.
Undergauge connecting rod 7, polished rod 8, delivery connection 9, pull rod 10 and the travelling valve 14 that the note adopts once pump 300 once pass through silk Button connection forms the moving parts that the note adopts once pump 300, wherein, which is connected by undergauge connecting rod 7 with sucker rod Connect, can be synchronized with the movement up and down.
Travelling valve seat 13 and plunger 12 are integrated by screwed connection, are sleeved on the outside of pull rod 10, in delivery connection 9 and are moved about Between valve 14, with moving up and down for sucker rod 200, entirety that the travelling valve seat 13 and plunger 12 form can move about unlatching and Close.
Fixed valve 4 is sleeved on polished rod 8, under standing valve cover 2, is seated on fixed valve base 3, that is to say, that this is fixed Valve 4 is between standing valve cover 2 and fixed valve base 3.The fixation valve 4 also with polished rod up-down stroke movement and on move down It is dynamic, complete the opening and closing of fixed valve.
In the program in the specific implementation, fixed valve 4 and travelling valve 14 all refer to, mechanically to open strong valve closing by force, instead of Conventional ball valve, it is with the up and down motion of sucker rod 7 and force switch and closure that this, which mechanically opens by force strong valve closing, Bu Huishou To the influence of hydraulic pressure, gravity and gas, khaki and closing velocity are controllable, can be operated according to actual conditions, improve pump efficiency.
Fig. 3 is the structure diagram when note in injection-production column jacket provided by the utility model adopts once pump gas injection.Fig. 4 is this Note in the injection-production column jacket that utility model provides adopts structure diagram when once pump recovers the oil.As shown in Figure 3 and Figure 4, which adopts When tubing string works, the concrete condition which adopts once pump 300 is:
During gas injection, plunger is transferred, opens gas injection passage.
During oil recovery, plunger is above carried, realizes oil recovery process.
Specifically, as shown in Figure 1:Note, which is adopted, once pumps the top in oil reservoir.
As shown in figure 3, note is adopted and once pumped in gas injection, sucker rod 200 is transferred into bottom, undergauge connecting rod 7 is placed in fixation In valve 5, passage is conceded, while travelling valve 14 is also disengaged with plunger 12, forms passage, travelling valve 14,4 endoporus of fixed valve are same at this time When open, pump up/down perforation, formed gas injection passage.Realize the process that gas injection is carried out by oil pipe.
As shown in Figure 4:After oil well gas injection, oil well is transferred to production process, it is only necessary to sucker rod 200 is lifted, will For polished rod 8 as sealing state is formed in fixed valve 4, oil recovery process can be realized by regulating erosion control distance.
In the present solution, injection-production column jacket may be applied not only in carrying out gas-injection oil-production in vertical oil well, use can also be tilted, Such as the well between 0 degree to 90 degree can use, this this programme is not limited.
Injection-production column jacket provided by the utility model, when gas injection, are injected by oil pipe, and when oil recovery equally uses oil pipe, realizes note Gas recovers the oil in one.Gas injection can be reduced for occurring during oil the problem of casing corrosion cracking, casing damage.
Finally it should be noted that:Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited System;Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should Understand:It can still modify the technical solution described in foregoing embodiments, either to which part or whole Technical characteristic carries out equivalent substitution;And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly The scope of each embodiment technical solution of type.

Claims (5)

  1. A kind of 1. injection-production column jacket, it is characterised in that including:Oil pipe, sucker rod, note adopt once pump, screen casing and silk plug;
    The note is adopted the upper end once pumped and is connected with oil pipe, and the note adopts the lower end once pumped and the upper end of screen casing connects, described The lower end of screen casing sets the silk plug to be closed;
    The sucker rod is threaded through in the oil pipe, and the sucker rod is adopted the undergauge connecting rod once pumped with the note and is connected;It is logical Cross the sucker rod and drive the undergauge connecting rod movement, the adjustable note adopts once pump and carries out gas injection or oil recovery;
    Packer is provided with the outside annular space of the oil pipe, for annular space to be closed;
    The packer is located at the oil reservoir in shaft bottom.
  2. 2. injection-production column jacket according to claim 1, it is characterised in that the note is adopted the top connection once pumped, fixed outside valve Cylinder, standing valve cover, fixed valve base, fixed valve lower contact, pump barrel and lower contact pass sequentially through screwed connection and are integrated, described in composition Note adopts the fixation kit once pumped;
    The note adopts undergauge connecting rod, polished rod, delivery connection, pull rod and the travelling valve once pumped and passes sequentially through screwed connection, Form the note and adopt the moving parts once pumped;
    The note is adopted the fixation valve that once pumps and is placed on the fixed valve base, and the movements of the moving parts can drive described solid Determine valve movement, control the injection-production column jacket to be recovered the oil or gas injection.
  3. 3. injection-production column jacket according to claim 2, it is characterised in that the note adopts once pump and further includes plunger and travelling valve Seat;The travelling valve seat is integrated with the plunger by screwed connection, be set in the delivery connection and the travelling valve it Between the pull rod exterior measuring.
  4. 4. injection-production column jacket according to claim 2, it is characterised in that the fixed valve pocket is located on the polished rod, described Fixed valve is between the standing valve cover and the fixed valve base.
  5. 5. injection-production column jacket according to claim 2, it is characterised in that the travelling valve and the fixed valve are mechanical Strong valve closing is opened by force.
CN201720674972.8U 2017-06-12 2017-06-12 Injection-production column jacket Active CN207332777U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720674972.8U CN207332777U (en) 2017-06-12 2017-06-12 Injection-production column jacket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720674972.8U CN207332777U (en) 2017-06-12 2017-06-12 Injection-production column jacket

Publications (1)

Publication Number Publication Date
CN207332777U true CN207332777U (en) 2018-05-08

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ID=62426444

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720674972.8U Active CN207332777U (en) 2017-06-12 2017-06-12 Injection-production column jacket

Country Status (1)

Country Link
CN (1) CN207332777U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110905467A (en) * 2018-09-17 2020-03-24 中国石油天然气股份有限公司 Injection and production dual-purpose tubular column structure
CN112081534A (en) * 2019-06-14 2020-12-15 中国石油化工股份有限公司 Anti-erosion injection-production pipe column structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110905467A (en) * 2018-09-17 2020-03-24 中国石油天然气股份有限公司 Injection and production dual-purpose tubular column structure
CN110905467B (en) * 2018-09-17 2022-03-29 中国石油天然气股份有限公司 Injection and production dual-purpose tubular column structure
CN112081534A (en) * 2019-06-14 2020-12-15 中国石油化工股份有限公司 Anti-erosion injection-production pipe column structure

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