CN107524429A - A kind of individual well multilayer while injection-production technical tubing string - Google Patents
A kind of individual well multilayer while injection-production technical tubing string Download PDFInfo
- Publication number
- CN107524429A CN107524429A CN201710554828.5A CN201710554828A CN107524429A CN 107524429 A CN107524429 A CN 107524429A CN 201710554828 A CN201710554828 A CN 201710554828A CN 107524429 A CN107524429 A CN 107524429A
- Authority
- CN
- China
- Prior art keywords
- tubing string
- binary channels
- injection
- liquid stream
- individual well
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
Abstract
The present invention relates to oil gas development technology field, more particularly to a kind of individual well multilayer while injection-production technical tubing string.The binary channels tubing string of the device is made up of the tubing string for forming two autonomous channels, binary channels tubing string, binary channels liquid stream exchanger alternately connect from top to bottom, the binary channels liquid stream exchanger lower end connection multifunctional guide head of bottom, Inter-zonal packing device is separately installed with the binary channels tubing string of binary channels liquid stream exchanger upper and lower side, each binary channels liquid stream exchanger is made all in an exploitation injection sheaf space by the sealing of Inter-zonal packing device between protective casing on the outside of binary channels tubing string.The present invention realizes the water filling of individual well multilayer or steam injection and recovers the oil while carry out, and improves oil production efficiency, reduces operating cost.
Description
Technical field：
The present invention relates to oil gas development technology field, more particularly to a kind of individual well multilayer while injection-production technical tubing string.
Background technology：
During oil and gas development, to supplement stratum energy, it is often necessary to water filling or steam injection exploitation.Existing injection-production technology is main
It is divided into two kinds of situations：One kind is a kind of well dedicated for water filling or steam injection, and another kind of well is dedicated for recovering the oil.This development plan
Suitable for layer position be clear, note adopts the perfect block whole development of pipe network, existing most waterflooding extraction blocks and thick oil steam drive
Well belongs to such case.Second of situation is that individual well note is adopted alternately, that is to say, that some stage for a bite well
Carry out water filling or steam injection supplements the stratum energy of this well, next stage switchs to recover the oil.This mode is relatively more suitable for scattered
Marginal well or prospect pit exploitation, it is not necessary to perfect injection pattern and special injection well, therefore advantage of lower cost, be suitable for
Small-scale exploitation.The disadvantage of second scheme is, injection-production technology needs alternately to implement, it is interim among cargo handling operation compared with
More, operating cost is high, and oil production efficiency is low.
The content of the invention：
The technical problem to be solved in the present invention is to provide a kind of individual well multilayer simultaneously injection-production technical tubing string, the arrangement achieves
The water filling of individual well multilayer or steam injection are carried out simultaneously with recovering the oil, and improve oil production efficiency, reduce operating cost.Existing individual well note is overcome to adopt
Technique needs alternately to implement, and interim middle cargo handling operation is more, and operating cost is high, the low deficiency of oil production efficiency.
The technical solution used in the present invention is：A kind of individual well multilayer injection-production technical tubing string, including binary channels tubing string simultaneously；
Binary channels tubing string is made up of the tubing string for forming two autonomous channels, and binary channels tubing string, binary channels liquid stream exchanger are handed over from top to bottom
For connection, the binary channels liquid stream exchanger lower end of bottom connects multifunctional guide head, binary channels liquid stream exchanger upper and lower side
Inter-zonal packing device is separately installed with binary channels tubing string, it is close by Inter-zonal packing device between binary channels tubing string outside and protective casing
Envelope makes each binary channels liquid stream exchanger, and all in an exploitation injection sheaf space, binary channels liquid stream exchanger has two streams
Body passage, two fluid passages are respectively communicated with two autonomous channels of binary channels tubing string, and two fluid passages can pass through respectively
Valve body is realized connection with corresponding exploitation injection sheaf space and closed.
Binary channels tubing string is using parallel mutual two independent tubing strings.
Binary channels tubing string is using two tubing strings being set in together.
Be set in together two tubing strings of binary channels tubing string are concentric tube column.
The beneficial effects of the invention are as follows：The present invention realizes the water filling of individual well multilayer or steam injection with recovering the oil while carrying out, and improves
Oil production efficiency, reduce operating cost.
Brief description of the drawings：
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural representation of the present invention.
Embodiment：
A kind of as shown in figure 1, individual well multilayer injection-production technical tubing string, including binary channels tubing string 1 simultaneously；Binary channels tubing string 1 by
The tubing string composition of two autonomous channels is formed, binary channels tubing string 1, binary channels liquid stream exchanger 3 alternately connect from top to bottom, most lower
The lower end of the binary channels liquid stream exchanger 3 connection multifunctional guide first 5 at end, multifunctional guide first 5 removes, and there is tubing string tripping in be oriented to work
With outer, Inter-zonal packing device 2 can be coordinated to meet various setting requirements.The binary channels tubing string 1 of the upper and lower side of binary channels liquid stream exchanger 3
On be separately installed with Inter-zonal packing device 2, made between the outside of binary channels tubing string 1 and protective casing 4 by the sealing of Inter-zonal packing device 2 every
For individual binary channels liquid stream exchanger 3 all in an exploitation injection sheaf space, Inter-zonal packing device 2 can be that the various interlayers that are used for seal
Every tool type, be not limited to specific swollen envelope mode, seal isolation requirement need to be only met during note is adopted.Binary channels liquid stream
Exchanger 3 has two fluid passages, and two fluid passages are respectively communicated with two autonomous channels of binary channels tubing string 1, two streams
Body passage can realize connection with corresponding exploitation injection sheaf space by valve body respectively and close, and then realize that inter-layer fluid arrives
Two fluid passages flow into or out.
Binary channels tubing string 1 can use parallel mutual two independent tubing strings.
Binary channels tubing string 1 can use two tubing strings being set in together.Be set in together two of binary channels tubing string 1
Tubing string can be concentric tube column.
Operation procedure under conventional well is first depending on during construction, latus rectum and pipe cleaning operation are carried out to protective casing 4, it is ensured that instrument
Reliable tripping in.Binary channels tubing string 1 needs to support the use with supporting binary channels tubing string well head.Each interval binary channels liquid stream exchanger
Binary channels tubing string 1 is suitably increased as length auxiliary extension according to the demand of interval distance between 3 and Inter-zonal packing device 2.Bilateral
Two fluid passage valve body UNICOM states of road liquid stream exchanger 3 can be preset, can also as needed the later stage using electricity
Cable or steel wire operation enter row of channels switching, it might even be possible to realize the operation using intelligent electronic remote control mode.In each layer position of pit shaft
Effectively on the basis of packing, water filling or steam injection optionally are carried out to random layer position, another part layer position is recovered the oil.
Theoretically, inject the number of plies and the exploitation number of plies and its relative position relationship is unrestricted.
It is understood that above with respect to the specific descriptions of the present invention, it is merely to illustrate the present invention and is not limited to this
Technical scheme described by inventive embodiments, it will be understood by those within the art that, still the present invention can be carried out
Modification or equivalent substitution, to reach identical technique effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (4)
- A kind of 1. individual well multilayer injection-production technical tubing string, including binary channels tubing string (1) simultaneously；It is characterized in that：Binary channels tubing string (1) It is made up of the tubing string for forming two autonomous channels, binary channels tubing string (1), binary channels liquid stream exchanger (3) alternately connect from top to bottom Connect, binary channels liquid stream exchanger (3) lower end connection multifunctional guide head (5) of bottom, binary channels liquid stream exchanger (3) is up and down Inter-zonal packing device (2) is separately installed with the binary channels tubing string (1) at end, between binary channels tubing string (1) outside and protective casing (4) Each binary channels liquid stream exchanger (3) is set to be injected all in an exploitation in sheaf space by Inter-zonal packing device (2) sealing, bilateral Road liquid stream exchanger (3) has two fluid passages, and two fluid passages be respectively communicated with binary channels tubing string (1) two are independently led to Road, two fluid passages can realize connection with corresponding exploitation injection sheaf space by valve body respectively and close.
- 2. according to the individual well multilayer described in claim 1 while injection-production technical tubing string, it is characterised in that：The binary channels tubing string (1) using parallel mutual two independent tubing strings.
- 3. according to the individual well multilayer described in claim 1 while injection-production technical tubing string, it is characterised in that：The binary channels tubing string (1) using two tubing strings being set in together.
- 4. according to the individual well multilayer described in claim 3 while injection-production technical tubing string, it is characterised in that：The binary channels tubing string (1) be set in together two tubing strings are concentric tube column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710554828.5A CN107524429A (en) | 2017-07-10 | 2017-07-10 | A kind of individual well multilayer while injection-production technical tubing string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710554828.5A CN107524429A (en) | 2017-07-10 | 2017-07-10 | A kind of individual well multilayer while injection-production technical tubing string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107524429A true CN107524429A (en) | 2017-12-29 |
Family
ID=60748900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710554828.5A Pending CN107524429A (en) | 2017-07-10 | 2017-07-10 | A kind of individual well multilayer while injection-production technical tubing string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107524429A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630082A (en) * | 2018-10-19 | 2019-04-16 | 中国石油大学(北京) | Individual well note adopts integrated seam net development approach in a kind of oil field development |
| CN114876424A (en) * | 2022-06-07 | 2022-08-09 | 中海石油(中国)有限公司深圳分公司 | Separate mining and separate injection string and separate mining and separate injection method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201581877U (en) * | 2009-11-20 | 2010-09-15 | 大庆油田有限责任公司 | Same-well multi-layer injection-production technical tubing string |
| CN102364044A (en) * | 2011-11-21 | 2012-02-29 | 中国海洋石油总公司 | Double-channel injection and production switching device |
| US20130319658A1 (en) * | 2012-06-04 | 2013-12-05 | Schlumberger Technology Corporation | Wellbore isolation while placing valves on production |
| CN105114048A (en) * | 2015-08-17 | 2015-12-02 | 中国石油大学(华东) | Horizontal well staged fracturing oil production method through injection and production in same well |
-
2017
- 2017-07-10 CN CN201710554828.5A patent/CN107524429A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201581877U (en) * | 2009-11-20 | 2010-09-15 | 大庆油田有限责任公司 | Same-well multi-layer injection-production technical tubing string |
| CN102364044A (en) * | 2011-11-21 | 2012-02-29 | 中国海洋石油总公司 | Double-channel injection and production switching device |
| US20130319658A1 (en) * | 2012-06-04 | 2013-12-05 | Schlumberger Technology Corporation | Wellbore isolation while placing valves on production |
| CN105114048A (en) * | 2015-08-17 | 2015-12-02 | 中国石油大学(华东) | Horizontal well staged fracturing oil production method through injection and production in same well |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630082A (en) * | 2018-10-19 | 2019-04-16 | 中国石油大学(北京) | Individual well note adopts integrated seam net development approach in a kind of oil field development |
| CN114876424A (en) * | 2022-06-07 | 2022-08-09 | 中海石油(中国)有限公司深圳分公司 | Separate mining and separate injection string and separate mining and separate injection method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171229 |
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| RJ01 | Rejection of invention patent application after publication |