CN105545264B - A kind of carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string - Google Patents
A kind of carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string Download PDFInfo
- Publication number
- CN105545264B CN105545264B CN201610001565.0A CN201610001565A CN105545264B CN 105545264 B CN105545264 B CN 105545264B CN 201610001565 A CN201610001565 A CN 201610001565A CN 105545264 B CN105545264 B CN 105545264B
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- China
- Prior art keywords
- slide cartridge
- interior slide
- sleeve
- injection
- carbon dioxide
- 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
- E21B43/164—Injecting CO2 or carbonated 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/063—Valve or closure with destructible element, e.g. frangible disc
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/08—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
-
- 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
- E21B43/14—Obtaining from a multiple-zone well
-
- 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
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/04—Ball valves
-
- 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
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/06—Sleeve valves
Abstract
The invention discloses a kind of carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string, including sleeve pipe, oil pipe is provided with sleeve pipe, it is characterized in that：Bridging plug can be bored by being provided with sleeve pipe, bridging plug can be bored sleeve pipe is divided into upper interval and lower layer section, sealing intubation is plugged with bridging plug that can bore, oil pipe is terminated in sealing intubation, oil pipe, which is sequentially provided with, sets ball valve, retrievable type production mandrel and packer, the retrievable type production mandrel includes outer barrel and interior slide cartridge, being provided with outer barrel prevents interior slide cartridge from fixing shear pin in the interior slide cartridge of outer barrel interior edge axial slip, interval gas injection port is provided with outer barrel and interior slide cartridge, Throw-salvage type stopper is additionally provided with interior slide cartridge, blanking plug top is provided with fishing head, lower layer section air injection opening is provided with blanking plug bottom, the process pipe string is simple in construction, construction and injection rate are easy to adjust, single note upper strata can be realized, singly pour down layer, two layers the same as note, it can be worked on after one layer of injection failure using general injection mode.
Description
Technical field
The present invention relates to a kind of oil field process pipe string, especially one kind to inject single tube used in carbon dioxide into oil field
Double-deck injection technology tubing string.
Background technology
Need to inject carbon dioxide to oil reservoir using tubing string during carbon dioxide drive oil production, due to the permeability of each oil reservoir
Have differences, therefore, it is necessary to preferentially using layering injection technology.Carbon dioxide layering injection technology tubing string of the prior art is more
Using the CO disclosed in CN 201539215U2Concentric double pipe zone separate injection technical string is driven, this process pipe string is by inner oil tube and outer oil
Pipe forms binary channels, is docked again with packer after passing through outer oil pipe due to inner oil tube, and difficulty of construction is larger, once also, its
In passage break down carbon dioxide can only be just injected to an interval, or whole tubing string is risen to repair, not only influenceed
Production, and operating expenses is higher.
The content of the invention
Invention technical problems to be solved are：A kind of carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string is provided,
The process pipe string is simple in construction, and construction and injection rate are easy to adjust, it is possible to achieve and it is single to note upper strata, singly pour down layer, two layers of same note, one
It can be worked on after layer injection failure using general injection mode.
The technical solution adopted for solving the technical problem：A kind of carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology pipe
Post, including sleeve pipe, oil pipe is provided with sleeve pipe, in sleeve pipe be provided with can bore bridging plug, can bore bridging plug by sleeve pipe be divided into upper interval and
Lower layer section, sealing intubation is plugged with bridging plug that can bore, terminates oil pipe in sealing intubation, oil pipe, which is sequentially provided with, to be set
Ball valve, retrievable type production mandrel and packer, the retrievable type production mandrel include the outer barrel that both ends are connected with oil pipe, set in outer barrel
There is the interior slide cartridge that cooperation is slidingly sealed with outer tube inner wall, being provided with outer barrel prevents interior slide cartridge in outer barrel interior edge axial slip
Slide cartridge fixes shear pin, the upper interval gas injection port of insertion outer tube wall and interior slide cartridge wall is provided with outer barrel and interior slide cartridge, in interior slide cartridge
Throw-salvage type stopper being slidingly sealed cooperation with interior slide cartridge inwall, opening or closing gas injection port is inside additionally provided with, on blanking plug
Portion is provided with fishing head, and lower layer section air injection opening is provided with blanking plug bottom.
Improvement as the present invention：A plurality of closure gasket groove is provided with interior slide cartridge outer circumference surface, is embedded with closure gasket groove
O-ring seal.
As a further improvement on the present invention：It is provided with the lower layer section air injection opening outer wall of upper upper and lower two of interval gas injection port
A plurality of closure gasket groove, O-ring seal is embedded with closure gasket groove.
Further improvement as the present invention：The conical surface coordinated with ball sealer is provided with interior slide cartridge upper surface.
Another as the present invention improves：The ball valve that sets includes sleeve, is provided with and sleeve lining face in sleeve
The sliding sleeve of cooperation is slidingly sealed, unidirectional valve ball is provided with the valve pocket of sliding sleeve, being additionally provided with sleeve prevents from sliding in sleeve
The sliding sleeve to slide axially fixes shear pin, and closure gasket groove is provided with the outer circumference surface of sliding sleeve, sealing is embedded with closure gasket groove
Cushion rubber.
Beneficial effect：The carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string of the present invention is as a result of the work
Skill tubing string includes sleeve pipe, and oil pipe is provided with sleeve pipe, and bridging plug can be bored by being provided with sleeve pipe, can bore bridging plug and sleeve pipe is divided into upper interval
And lower layer section, sealing intubation is plugged with bridging plug that can bore, terminates oil pipe in sealing intubation, oil pipe is sequentially provided with seat
Blocking valve, retrievable type production mandrel and retrievable type production mandrel described in packer include the outer barrel that both ends are connected with oil pipe, in outer barrel
Provided with the interior slide cartridge that cooperation is slidingly sealed with outer tube inner wall, being provided with outer barrel prevents interior slide cartridge in outer barrel interior edge axial slip
Interior slide cartridge fixes shear pin, and the upper interval gas injection port of insertion outer tube wall and interior slide cartridge wall is provided with outer barrel and interior slide cartridge, is slided inside
Throw-salvage type stopper being slidingly sealed cooperation with interior slide cartridge inwall, opening or closing gas injection port, blanking plug are additionally provided with cylinder
Top is provided with fishing head, is provided with the technical characteristic of lower layer section air injection opening in blanking plug bottom, makes the carbon dioxide alternate water injection of the present invention
Displacement of reservoir oil single-tube double-layer injection technology tubing string can be changed by pulling production mandrel water nozzle realize single note upper strata, singly pour down layer, two layers
With note, not only easy switching, and injection rate can be adjusted by changing water nozzle, once wherein one layer injection is broken down, can pass through
In well upslide ball sealer, the interior slide cartridge of retrievable type production mandrel is destroyed, gets through upper and lower layer passage, general injection is realized, so as to keep away
Exempt from post maintenance activity, save construction cost；As a result of being provided with a plurality of closure gasket groove on interior slide cartridge outer circumference surface,
Closure gasket groove is embedded with the technical characteristic of O-ring seal, not only increases the airtight effect of interior slide cartridge and outer barrel, and will not shadow
Ring and interior slide cartridge is destroyed into operation；As a result of upper upper and lower two of interval gas injection port lower layer section air injection opening outer wall be provided with it is more
Bar closure gasket groove, the technical characteristic of O-ring seal is embedded with closure gasket groove, also accordingly improves the gas of air injection opening and interior slide cartridge
Close effect, and do not interfere with the pulling operation of blanking plug；As a result of interior slide cartridge upper surface be provided with and ball sealer coordinate
The technical characteristic of the conical surface, the ball sealer of production mandrel in input well is fully contacted with interior slide cartridge upper surface, block in slide cartridge
Upper port, so that interior slide cartridge is easier to destroy；Include sleeve as a result of the ball valve that sets, be provided with and set in sleeve
Cylinder internal face is slidingly sealed the sliding sleeve of cooperation, and unidirectional valve ball is provided with the valve pocket of sliding sleeve, anti-anti-skid sheath is additionally provided with sleeve
In sleeve interior edge, sliding sleeve fixes shear pin in axial sliding, closure gasket groove is provided with the outer circumference surface of sliding sleeve, in closure gasket groove
Technical characteristic embedded with O-ring seal, setting for packer is not only facilitated, moreover, after packer setting, by continuing to beat
Pressure destroys the sliding sleeve set in ball valve, easily realizes the insertion of upper and lower passage.
Brief description of the drawings
The carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string of the present invention is made further below in conjunction with the accompanying drawings
Describe in detail.
Fig. 1 is the structural representation of the carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string of the present invention；
Fig. 2 is that the structure for amplifying of production mandrel in carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string of the invention shows
It is intended to；
Fig. 3 is the structure for amplifying that ball valve is set in the carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string of the present invention
Schematic diagram.
Embodiment
As shown in figure 1, the carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string of the present invention includes sleeve pipe 2, covering
Oil pipe 3 is provided with pipe, bridging plug 8 can be bored by being provided with sleeve pipe, can bore bridging plug and sleeve pipe is divided into upper interval and lower layer section, can bore bridge
Sealing intubation 7 is plugged with beyond the Great Wall, and the sealing intubation is preferably self-righting formula sealing intubation, terminates oil pipe in sealing intubation, oil
Pipe, which is sequentially provided with, sets ball valve 6, retrievable type production mandrel 5 and packer 1.
As shown in Fig. 2 the retrievable type production mandrel includes the outer barrel 51 that is connected with oil pipe of both ends, in outer barrel provided with it is outer
Cylinder inwall is slidingly sealed the interior slide cartridge 55 of cooperation, and being provided with outer barrel prevents interior slide cartridge in the interior slide cartridge of outer barrel interior edge axial slip
Fixed shear pin 53, the upper interval gas injection port 56 of insertion outer tube wall and interior slide cartridge wall is provided with outer barrel and interior slide cartridge, in interior slide cartridge
Inside it is additionally provided with Throw-salvage type stopper 54 being slidingly sealed cooperation with interior slide cartridge inwall, opening or closing gas injection port, blanking plug
Top is provided with fishing head 52, and lower layer section air injection opening 58 is provided with blanking plug bottom, is provided with interior slide cartridge upper surface and matches somebody with somebody with ball sealer
The conical surface 50 of conjunction, a plurality of closure gasket groove 59 is provided with interior slide cartridge outer circumference surface, O-ring seal is embedded with closure gasket groove, upper
The lower layer section air injection opening outer wall of upper and lower two of interval gas injection port is provided with a plurality of closure gasket groove 57, and sealing is embedded with closure gasket groove
Cushion rubber.
As shown in figure 3, the ball valve that sets includes sleeve 61, it is provided with sleeve and is slidingly sealed cooperation with sleeve lining face
Sliding sleeve 62, unidirectional valve ball 63 is provided with the valve pocket of sliding sleeve, is additionally provided with to prevent from sliding in sleeve on sleeve and slides vertically
Dynamic sliding sleeve fixes shear pin 64, and closure gasket groove 65 is provided with the outer circumference surface of sliding sleeve, O-ring seal is embedded with closure gasket groove.
The carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string construction method of the present invention：
1. bridging plug setting tool is connected with that can bore bridging plug, with design attitude is arrived under cable, bridging plug can be bored and set, set
Afterwards bridging plug setting tool is risen；
2. salvagable production mandrel is filled with lower floor Shui Zui, sealing intubation top is installed on together with setting ball valve, directly with oil
Pipe docks, and top is import packer；
3. during about 10 meters from bridging plug of tubing string, should slowly transfer tubing string, sealing intubation is slow after dock with bridging plug to transfer tubing string,
When weight indicator changes, under illustrating intubation in place, according to well depth upper lifting pipe post certain distance, in order to avoid string creep during water filling
Power repeated action influences the sealing effectiveness of bridging plug on bridging plug；
4. being suppressed from oil pipe, suppress to packer setting pressure, by packer setting；
The sliding sleeve set in ball valve is destroyed 5. continuing to suppress, sliding sleeve is fallen into the floral tube of bottom, and lower passage is got through；
6. matching somebody with somebody fluence according to each layer, water nozzle is changed in pulling, can singly be noted upper strata, singly be poured down layer, also two layers of same note；
7. once meeting card, the plugging device of production mandrel can not be pulled out, from well upslide ball sealer, suppressed from oil pipe, by production mandrel
Interior slide cartridge is destroyed, and two layers of mixed water injection can be achieved；
8. if pitching can not also destroy interior slide cartridge, interior slide cartridge can be swept, fixing shear pin because of interior slide cartridge is designed into top
Portion, therefore easily clear away.
Claims (5)
1. a kind of carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string, including sleeve pipe, are provided with oil pipe in sleeve pipe, it is special
Sign is：Bridging plug can be bored by being provided with sleeve pipe, can bore bridging plug and sleeve pipe is divided into upper interval and lower layer section, be plugged with that can bore on bridging plug
Sealing intubation, sealing are intubated and terminate oil pipe, and oil pipe, which is sequentially provided with, sets ball valve, retrievable type production mandrel and packing
Device, the retrievable type production mandrel include the outer barrel that both ends are connected with oil pipe, are provided with to be slidingly sealed with outer tube inner wall in outer barrel and match somebody with somebody
The interior slide cartridge closed, being provided with outer barrel prevents interior slide cartridge from fixing shear pin in the interior slide cartridge of outer barrel interior edge axial slip, in outer barrel and
The upper interval gas injection port of insertion outer tube wall and interior slide cartridge wall is provided with interior slide cartridge, is additionally provided with interior slide cartridge and is slided with interior slide cartridge inwall
Throw-salvage type stopper that dynamic sealing coordinates, opening or closing gas injection port, blanking plug top is provided with fishing head, under blanking plug
Portion is provided with lower layer section air injection opening, and the ball valve that sets includes sleeve, is provided with sleeve and is slidingly sealed cooperation with sleeve lining face
Sliding sleeve, unidirectional valve ball is provided with the valve pocket of sliding sleeve, being additionally provided with sleeve prevents from sliding over sleeve interior edge in axial sliding
Sliding sleeve fixes shear pin.
2. carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string according to claim 1, it is characterized in that：Slide inside
Cylinder outer circumference surface is provided with a plurality of closure gasket groove, and O-ring seal is embedded with closure gasket groove.
3. carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string according to claim 2, it is characterized in that：On upper strata
The upper and lower lower layer section air injection opening outer wall of section gas injection port is provided with a plurality of closure gasket groove, and O-ring seal is embedded with closure gasket groove.
4. carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string according to claim 3, it is characterized in that：Slide inside
Cylinder upper surface is provided with the conical surface coordinated with ball sealer.
5. the carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string according to any one of Claims 1-4, its feature
It is：Closure gasket groove is provided with the outer circumference surface for setting ball valve sliding sleeve, O-ring seal is embedded with closure gasket groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610001565.0A CN105545264B (en) | 2016-01-05 | 2016-01-05 | A kind of carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610001565.0A CN105545264B (en) | 2016-01-05 | 2016-01-05 | A kind of carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105545264A CN105545264A (en) | 2016-05-04 |
| CN105545264B true CN105545264B (en) | 2018-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610001565.0A Active CN105545264B (en) | 2016-01-05 | 2016-01-05 | A kind of carbon dioxide alternate water injection displacement of reservoir oil single-tube double-layer injection technology tubing string |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259420B (en) * | 2019-06-18 | 2023-12-19 | 东北石油大学 | Can throw and drag for formula foam generator in pit |
| CN110159234B (en) * | 2019-06-20 | 2023-12-29 | 中国石油化工股份有限公司 | Concentric double-tube separate injection of CO 2 Tubular column and use method thereof |
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| CN2786277Y (en) * | 2005-01-20 | 2006-06-07 | 石在虹 | Device for concentric separate-layer steam distribution for thick oil separate-layer steam drive process |
| CN101644140A (en) * | 2009-08-28 | 2010-02-10 | 大庆油田有限责任公司 | CO* flooding single string multi-zone separate injection technical string |
| CN204113220U (en) * | 2014-09-29 | 2015-01-21 | 中国石油天然气股份有限公司 | Steam injection switch and steam injection string |
| CN204212753U (en) * | 2014-09-23 | 2015-03-18 | 中国石油天然气股份有限公司 | Upper strata layered polymer injection lower floor commingled water injection process pipe string |
| CN205349309U (en) * | 2016-01-05 | 2016-06-29 | 沈阳华威石油机械制造有限公司 | Double -deck injection technology tubular column of carbon dioxide alternate water injection displacement of reservoir oil single tube |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6708763B2 (en) * | 2002-03-13 | 2004-03-23 | Weatherford/Lamb, Inc. | Method and apparatus for injecting steam into a geological formation |
-
2016
- 2016-01-05 CN CN201610001565.0A patent/CN105545264B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2786277Y (en) * | 2005-01-20 | 2006-06-07 | 石在虹 | Device for concentric separate-layer steam distribution for thick oil separate-layer steam drive process |
| CN101644140A (en) * | 2009-08-28 | 2010-02-10 | 大庆油田有限责任公司 | CO* flooding single string multi-zone separate injection technical string |
| CN204212753U (en) * | 2014-09-23 | 2015-03-18 | 中国石油天然气股份有限公司 | Upper strata layered polymer injection lower floor commingled water injection process pipe string |
| CN204113220U (en) * | 2014-09-29 | 2015-01-21 | 中国石油天然气股份有限公司 | Steam injection switch and steam injection string |
| CN205349309U (en) * | 2016-01-05 | 2016-06-29 | 沈阳华威石油机械制造有限公司 | Double -deck injection technology tubular column of carbon dioxide alternate water injection displacement of reservoir oil single tube |
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| CN105545264A (en) | 2016-05-04 |
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