CN104563989A - Same-well injection-production thermal oil extraction method for horizontal well and tubular column thereof - Google Patents
Same-well injection-production thermal oil extraction method for horizontal well and tubular column thereof Download PDFInfo
- Publication number
- CN104563989A CN104563989A CN201410828028.4A CN201410828028A CN104563989A CN 104563989 A CN104563989 A CN 104563989A CN 201410828028 A CN201410828028 A CN 201410828028A CN 104563989 A CN104563989 A CN 104563989A
- Authority
- CN
- China
- Prior art keywords
- well
- section
- oil
- horizontal
- injection
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 46
- 238000000605 extraction Methods 0.000 title abstract description 5
- 238000011084 recovery Methods 0.000 claims abstract description 47
- 238000010793 Steam injection (oil industry) Methods 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 38
- 239000003129 oil well Substances 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims description 40
- 238000000926 separation method Methods 0.000 claims description 16
- 238000005086 pumping Methods 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 82
- 230000000694 effects Effects 0.000 description 8
- 238000010796 Steam-assisted gravity drainage Methods 0.000 description 6
- 239000010779 crude oil Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000010795 Steam Flooding Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
-
- 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
- E21B43/30—Specific pattern of wells, e.g. optimising the spacing of wells
- E21B43/305—Specific pattern of wells, e.g. optimising the spacing of wells comprising at least one inclined or horizontal well
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)
- Earth Drilling (AREA)
Abstract
The invention provides a same-well injection-production thermal oil recovery method for a horizontal well and a tubular column thereof, wherein the method comprises the following steps: the method comprises the following steps: a sidetrack branch well section is arranged in an oil layer in an inclined downward mode on one side of a vertical well section of the horizontal well, then a well completion pipe column is lowered into the horizontal well section of the horizontal well, and a well completion screen pipe is lowered into the sidetrack branch well section; step two: a steam injection pipe column is put into the sidetracking branch well section; step three: lowering a production string into the vertical well section; step four: injecting steam into the steam injection pipe column from a wellhead, so that the steam enters an oil layer through the well completion sieve pipe; step five: and after the steam injection is finished, performing oil extraction operation through the oil extraction pipe column. This tubular column includes: the oil production pipe comprises an oil pumping pipe, an oil well pump, a sieve pipe, a tail pipe and a plug which are sequentially connected from top to bottom, and a pumping rod is placed in the oil production pipe; the steam injection pipe column comprises a first heat insulation pipe, a telescopic pipe, a second heat insulation pipe, a plurality of separated steam injection devices and a tail plug which are sequentially connected from top to bottom.
Description
Technical field
The invention belongs to steam thermal recovery oil recovery field, relate to a kind of steam oil production method and device, especially a kind of single-well injection-production oil recovery by heating method for horizontal well and tubing string thereof.
Background technology
In oil mining, the conventional thermodynamic of horizontal well is recovered the oil and mainly contains steam flooding and SAGD (Steam AssistedGravity Drainage, SAGD are called for short SAGD) oil recovery technique.Wherein, its mechanism of steam flooding is according to certain well pattern form, from Injection Well, inject steam continuously, crude oil sticks through adding heat drop, thermal expansion, steam the effect such as distillation and cracking, be driven to producing well; SAGD technology refers to injection high-quality steam, and district contacts with cold oil, release vaporization latent heat crude oil, expansion is continued by vapor chamber, occupy the volume of crude oil, make to be reduced viscosity by the crude oil that heats and steam condensate (SC) flows downward under gravity, extraction from horizontal production well.There is following problem in these two kinds main oil recovery by heating technology: (1) needs to carry out well net deployment, and adopt different well to carry out steam injection and oil recovery respectively, drilling hole number is many, and cost of investment is high; (2) some oil recovery block areas of structure are less, cannot carry out well net deployment; (3) producing well measure responding time is long, needs constantly to inject steam by steam flooding and SAGD steam injection well, and displace crude oil is to producing well extraction.
Therefore, need to study a kind of efficiency utilization steam heat and the steam oil production method of increasing economic efficiency and device, improve the effect of thickened oil steam-stimulated exploitation.
Summary of the invention
The object of the invention is to be to provide a kind of single-well injection-production oil recovery by heating method for horizontal well and tubing string thereof, can efficiency utilization steam heat and increasing economic efficiency, improve the effect of thickened oil steam-stimulated exploitation, can cannot dispose well pattern region at some and carry out effective oil recovery by heating.
For this reason, the present invention proposes a kind of single-well injection-production oil recovery by heating method for horizontal well, and this single-well injection-production oil recovery by heating method comprises the following steps:
Step one: offer sidetracking Multilateral Wells section downwards in oil reservoir at the lopsidedness of the Vertical Well section of horizontal well, subsequently, enter completion tubular column under the net horizontal section of horizontal well, and in this sidetracking Multilateral Wells section under enter completion screen casing;
Step 2: enter steam injection string under in sidetracking Multilateral Wells section;
Step 3: enter flow string under this Vertical Well section;
Step 4: inject steam from well head to this steam injection string, makes steam enter oil reservoir through described completion screen casing;
Step 5: after steam injection completes, carries out oil producing operation by flow string.
As above for the single-well injection-production oil recovery by heating method of horizontal well, wherein, the upper port of this sidetracking Multilateral Wells section is positioned at the upper portion of oil reservoir, and its lower end is positioned at the top of the end of the net horizontal section of this horizontal well.
As above for the single-well injection-production oil recovery by heating method of horizontal well, wherein, the upper port of this sidetracking Multilateral Wells section upwards distance oil reservoir top circle be 3-5m.
As above for the single-well injection-production oil recovery by heating method of horizontal well, wherein, the lower end of this sidetracking Multilateral Wells section is positioned at directly over the end of the net horizontal section of horizontal well, and both vertical distances are 10-20m.
As above for the single-well injection-production oil recovery by heating method of horizontal well, wherein, the angle of described sidetracking Multilateral Wells section and horizontal direction is 20 °-30 °.
As above for the single-well injection-production oil recovery by heating method of horizontal well, wherein, the length of the net horizontal section of described horizontal well is 300-700m.
As above for the single-well injection-production oil recovery by heating method of horizontal well, wherein, described completion tubular column is formed by connecting by oil stream screen casing and completion tail pipe, and described completion tail pipe is near the heel place of described horizontal well, and described oil stream screen casing is near the end of described net horizontal section.
The present invention also proposes a kind of single-well injection-production oil recovery by heating tubing string for horizontal well, and it comprises:
One flow string that can be positioned over the Vertical Well section of described horizontal well, described flow string comprises the oil pick-up tube, oil well pump, screen casing, tail pipe and the plug that connect successively from top to bottom, its inside is placed with a sucker rod, and the lower end of described sucker rod is connected with the travelling valve in described oil well pump;
One steam injection string, described steam injection string comprises one first instlated tubular connected successively from top to bottom, one telescoping tube, one second instlated tubular, multiple separation gas filling device and afterbody plug, described separation gas filling device comprises multiple packer, a dispensing valve is connected with respectively by oil pipe between packer described in each adjacent two, and the free end being positioned at the described packer of described separation gas filling device one end is connected with described second instlated tubular, the free end being positioned at the described packer of the described separation gas filling device other end is connected with described afterbody plug, when the lopsidedness of the Vertical Well section of described horizontal well offers sidetracking Multilateral Wells section downwards, described steam injection string is positioned in described sidetracking Multilateral Wells section.
Single-well injection-production oil recovery by heating method for horizontal well provided by the invention and tubing string thereof, segmentation steam injection is carried out by top sidetracking Multilateral Wells section, lower horizontal well section is recovered the oil, improve oil well heat utilization efficiency, increase work efficiency and economic benefit, the effect improving thickened oil steam-stimulated exploitation is applied widely, can cannot dispose well pattern region carry out effective oil recovery by heating at some.
Compared with prior art, single-well injection-production oil recovery by heating method for horizontal well of the present invention and tubing string thereof, without the need to carrying out well net deployment, steam is without open flow, steam heat can be made full use of, reduce the drillng operation time, reduce expenses, be specially adapted to core intersection more than 30 meters, the oil reservoir buried depth thick massive heavy oil reservoir that is less than 1500 meters.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the present invention and explain, not delimit the scope of the invention.Wherein:
Fig. 1 is of the present invention for the single-well injection-production oil recovery by heating method of horizontal well and the use reference diagram of tubing string thereof.
Critical element label declaration:
11 oil pick-up tube 12 oil well pumps
121 travelling valve 13 screen casings
14 tail pipe 15 plugs
21 first instlated tubular 22 telescoping tubes
23 second instlated tubulars 24 separate gas filling device
241 packer 242 oil pipes
243 dispensing valve 25 afterbody plugs
3 horizontal well 30 heels
31 Vertical Well section 32 net horizontal sections
33 sidetracking Multilateral Wells section 330 upper port
331 completion screen casing 4 completion tubular columns
42 completion tail pipe 41 oil stream screen casings
S oil reservoir
Detailed description of the invention
The present invention proposes a kind of single-well injection-production oil recovery by heating method for horizontal well, this single-well injection-production oil recovery by heating method comprises the following steps: step one: in oil reservoir, offer sidetracking Multilateral Wells section downwards at the lopsidedness of the Vertical Well section of horizontal well, subsequently, under the net horizontal section of horizontal well, enter completion tubular column, and in this sidetracking Multilateral Wells section under enter completion screen casing; Step 2: enter steam injection string under in sidetracking Multilateral Wells section; Step 3: enter flow string under this Vertical Well section; Step 4: inject steam from well head to this steam injection string, makes steam enter oil reservoir through described completion screen casing; Step 5: after steam injection completes, carries out oil producing operation by flow string.
The present invention also proposes a kind of tubing string of the single-well injection-production oil recovery by heating method for horizontal well, it comprises: a flow string that can be positioned over the Vertical Well section of described horizontal well, described flow string comprises the oil pick-up tube, oil well pump, screen casing, tail pipe and the plug that connect successively from top to bottom, its inside is placed with a sucker rod, and the lower end of described sucker rod is connected with the travelling valve in described oil well pump, one steam injection string, described steam injection string comprises one first instlated tubular connected successively from top to bottom, one telescoping tube, one second instlated tubular, multiple separation gas filling device and afterbody plug, described separation gas filling device comprises multiple packer, a dispensing valve is connected with respectively by oil pipe between packer described in each adjacent two, and the free end being positioned at the described packer of described separation gas filling device one end is connected with described second instlated tubular, the free end being positioned at the described packer of the described separation gas filling device other end is connected with described afterbody plug, when the lopsidedness of the Vertical Well section of described horizontal well offers sidetracking Multilateral Wells section downwards, described steam injection string is positioned in described sidetracking Multilateral Wells section.
Single-well injection-production oil recovery by heating method for horizontal well of the present invention and tubing string thereof, without the need to carrying out well net deployment, steam, without open flow, can make full use of steam heat, reduces the drillng operation time, reduces expenses.
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, below in conjunction with accompanying drawing and preferred embodiment, the single-well injection-production oil recovery by heating tubing string for horizontal well propose the present invention and the detailed description of the invention of oil production method, structure, feature and effect, be described in detail as follows.In addition, by the explanation of detailed description of the invention, when can to the present invention for the technological means reaching predetermined object and take and effect are goed deep into concrete understanding more, but institute's accompanying drawing be only to provide with reference to and use is described, is not used for being limited the present invention.
Fig. 1 is of the present invention for the single-well injection-production oil recovery by heating method of horizontal well and the use reference diagram of tubing string thereof.
As shown in Figure 1, the present invention proposes a kind of single-well injection-production oil recovery by heating method for horizontal well, and this single-well injection-production oil recovery by heating method comprises the following steps:
Step one: offer sidetracking Multilateral Wells section 33 downwards in oil reservoir S at the lopsidedness of the Vertical Well section 31 of horizontal well 3, subsequently, the net horizontal section to horizontal well 3 enters completion tubular column 4 32 times, and in this sidetracking Multilateral Wells section under enter completion screen casing 331;
Step 2: enter steam injection string under in sidetracking Multilateral Wells section 33;
Step 3: enter flow string 32 times to Vertical Well section;
Step 4: inject steam from well head to described steam injection string, makes steam enter oil reservoir S through described completion screen casing 331;
Step 5: after steam injection completes, carries out oil producing operation by flow string.
Wherein, the upper port 330 of this sidetracking Multilateral Wells section 33 is positioned at the upper portion of oil reservoir S, and its lower end is positioned at the top of the end of the net horizontal section 32 of horizontal well 3.
Preferably, the upper port 330 of this sidetracking Multilateral Wells section 33 upwards pushes up boundary's (top interface) apart from oil reservoir S is 3-5m.The lower end of this sidetracking Multilateral Wells section 33 is positioned at directly over the end of net horizontal section 32 of horizontal well 3, and both vertical distances are 10-20m.
Further, for this sidetracking Multilateral Wells Duan Eryan, preferred described sidetracking Multilateral Wells section 33 is 20 °-30 ° with the angle of horizontal direction.The length of the net horizontal section 32 of described horizontal well 3 is 300-700m.
In addition, described completion tubular column 4 is formed by connecting by oil stream screen casing 41 and completion tail pipe 42, and described completion tail pipe 42 is near heel 30 (i.e. the front end of the described net horizontal section 32) place of described horizontal well 3, described oil stream screen casing 41 is near the end of described net horizontal section 32.
Operationally, preferably the internal diameter of described first instlated tubular 21, second instlated tubular 23 is 114mm, and the internal diameter of described oil pick-up tube 11 is 88.9mm, and the pump footpath of this oil well pump 12 is 127mm, the internal diameter 159mm of described sidetracking Multilateral Wells section 33, the internal diameter of the net horizontal section 32 of described horizontal well is 159mm.
The present invention also proposes a kind of tubing string of the single-well injection-production oil recovery by heating method for horizontal well, and it comprises:
One flow string that can be positioned over the Vertical Well section 31 of described horizontal well 3, described flow string comprises the oil pick-up tube 11, oil well pump 12, screen casing 13, tail pipe 14 and the plug 15 that connect successively from top to bottom, its inside is placed with a sucker rod 16, and the lower end of described sucker rod 16 is connected with the travelling valve 121 in described oil well pump 12;
One steam injection string, described steam injection string comprises one first instlated tubular 21 connected successively from top to bottom, one telescoping tube 22, one second instlated tubular 23, multiple separation gas filling device 24 and afterbody plug 25, described separation gas filling device 24 comprises multiple packer 241, a dispensing valve 243 is connected with respectively by oil pipe 242 between packer 241 described in each adjacent two, and the free end being positioned at the described packer 241 of described separation gas filling device 24 one end is connected with described second instlated tubular 23, the free end being positioned at the described packer 241 of described separation gas filling device 24 other end is connected with described afterbody plug 25, when the lopsidedness of the Vertical Well section 31 of described horizontal well 3 offers sidetracking Multilateral Wells section 33 downwards, described steam injection string can be positioned in described sidetracking Multilateral Wells section 33.
Wherein, first instlated tubular 21, second instlated tubular 22 is very little for ensureing the steam quality loss of injection, telescoping tube 22 is for ensureing that the rising-heat contracting-cold caused in steam and oil recovery process does not cause tubing string to move, each packer 241 is for the annular space in packing pit shaft, and the steam that each dispensing valve is injected directly enters oil reservoir, can not run helter-skelter, improve the utilization rate of steam, as for above-mentioned oil well pump, packer and dispensing valve etc., be prior art, its composition structure and working principle is repeated no more.
Wherein, the length of above-mentioned oil pipe 242 can be decided according to the actual requirements, by selecting the oil pipe of different length, between adjustable dispensing valve, there is different spacing, in use, for reaching better steam injection efficiency, preferably described in adjacent two, the spacing of dispensing valve 241 is 70m.
At work, after entering above-mentioned steam injection string under in sidetracking Multilateral Wells section 33, each described packer 241 is set in this sidetracking Multilateral Wells section 33, annular space in the pit shaft of energy packing sidetracking Multilateral Wells section, when injecting steam from well head in described steam injection string, steam can enter oil reservoir S by each described dispensing valve 243 and described completion screen casing 331, and the steam that each dispensing valve is injected directly enters the correspondence position of oil reservoir, improves steam injection efficiency and the utilization rate of steam; Subsequently, after steam injection completes, drive this travelling valve 121 to move up and down by this sucker rod 16, can oil producing operation be carried out.In oil well pump, carry out the process of pumping as sucker rod, be then known technology, do not repeat.
Single-well injection-production oil recovery by heating tubing string for horizontal well provided by the invention and oil production method thereof, segmentation steam injection is carried out by top sidetracking Multilateral Wells section, lower horizontal well section is recovered the oil, improve oil well heat utilization efficiency, decrease the drillng operation time, increase work efficiency and economic benefit, the effect improving thickened oil steam-stimulated exploitation is applied widely, can cannot dispose well pattern region carry out effective oil recovery by heating at some.
The foregoing is only the schematic detailed description of the invention of the present invention, and be not used to limit scope of the present invention.Any those skilled in the art, the equivalent variations done under the prerequisite not departing from design of the present invention and principle and amendment, all should belong to the scope of protection of the invention.
Claims (10)
1., for a single-well injection-production oil recovery by heating method for horizontal well, this single-well injection-production oil recovery by heating method comprises the following steps:
Step one: offer sidetracking Multilateral Wells section downwards in oil reservoir at the lopsidedness of the Vertical Well section of horizontal well, subsequently, enter completion tubular column under the net horizontal section of horizontal well, and in this sidetracking Multilateral Wells section under enter completion screen casing;
Step 2: enter steam injection string under in sidetracking Multilateral Wells section;
Step 3: enter flow string under this Vertical Well section;
Step 4: inject steam from well head to this steam injection string, makes steam enter oil reservoir through described completion screen casing;
Step 5: after steam injection completes, carries out oil producing operation by described flow string.
2., as claimed in claim 1 for the single-well injection-production oil recovery by heating method of horizontal well, it is characterized in that, the upper port of this sidetracking Multilateral Wells section is positioned at the upper portion of oil reservoir, and its lower end is positioned at the top of the end of the net horizontal section of this horizontal well.
3. as claimed in claim 2 for the single-well injection-production oil recovery by heating method of horizontal well, it is characterized in that, the upper port of this sidetracking Multilateral Wells section upwards distance oil reservoir top circle is 3-5m.
4., as claimed in claim 2 or claim 3 for the single-well injection-production oil recovery by heating method of horizontal well, it is characterized in that, the lower end of this sidetracking Multilateral Wells section is positioned at directly over the end of the net horizontal section of horizontal well, and both vertical distances are 10-20m.
5., as claimed in claim 4 for the single-well injection-production oil recovery by heating method of horizontal well, it is characterized in that, the angle of described sidetracking Multilateral Wells section and horizontal direction is 20 °-30 °.
6., as claimed in claim 5 for the single-well injection-production oil recovery by heating method of horizontal well, it is characterized in that, the length of the net horizontal section of described horizontal well is 300-700m.
7. as claimed in claim 6 for the single-well injection-production oil recovery by heating method of horizontal well, it is characterized in that, described completion tubular column is formed by connecting by oil stream screen casing and completion tail pipe, and described completion tail pipe is near the heel place of described horizontal well, and described oil stream screen casing is near the end of described net horizontal section.
8., as claimed in claim 1 for the single-well injection-production oil recovery by heating method of horizontal well, it is characterized in that, the angle of described sidetracking Multilateral Wells section and horizontal direction is 20 °-30 °.
9., for requiring a tubing string for the single-well injection-production oil recovery by heating method of the horizontal well as described in 1 to 8 any one as profit, it is characterized in that, described tubing string comprises:
One flow string that can be positioned over the Vertical Well section of described horizontal well, the oil pick-up tube that described flow string from top to bottom connects successively, oil well pump, screen casing, tail pipe and plug, its inside is placed with a sucker rod, and the lower end of described sucker rod is connected with the travelling valve in described oil well pump;
One steam injection string, described steam injection string comprises one first instlated tubular connected successively from top to bottom, one telescoping tube, one second instlated tubular, multiple separation gas filling device and afterbody plug, described separation gas filling device comprises multiple packer, a dispensing valve is connected with respectively by oil pipe between packer described in each adjacent two, and the free end being positioned at the described packer of described separation gas filling device one end is connected with described second instlated tubular, the free end being positioned at the described packer of the described separation gas filling device other end is connected with described afterbody plug, when the lopsidedness of the Vertical Well section of described horizontal well offers sidetracking Multilateral Wells section downwards, described steam injection string is positioned in described sidetracking Multilateral Wells section.
10. the tubing string of the single-well injection-production oil recovery by heating method of horizontal well as claimed in claim 9, it is characterized in that, described in adjacent two, the spacing of dispensing valve is 70m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410828028.4A CN104563989A (en) | 2014-12-26 | 2014-12-26 | Same-well injection-production thermal oil extraction method for horizontal well and tubular column thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410828028.4A CN104563989A (en) | 2014-12-26 | 2014-12-26 | Same-well injection-production thermal oil extraction method for horizontal well and tubular column thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104563989A true CN104563989A (en) | 2015-04-29 |
Family
ID=53080974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410828028.4A Pending CN104563989A (en) | 2014-12-26 | 2014-12-26 | Same-well injection-production thermal oil extraction method for horizontal well and tubular column thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104563989A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089593A (en) * | 2015-08-03 | 2015-11-25 | 中国石油天然气股份有限公司 | SAGD well completion structure and exploitation method |
| CN106368666A (en) * | 2015-07-20 | 2017-02-01 | 中国石油天然气股份有限公司 | Vertical well-horizontal well pattern for thickened oil and thickened oil exploitation method |
| CN110094191A (en) * | 2018-01-29 | 2019-08-06 | 中国石油化工股份有限公司 | A kind of thermal production well fragment-force injection-production column jacket and method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040055750A1 (en) * | 2002-09-24 | 2004-03-25 | Restarick Henry L. | Multilateral injection/production/storage completion system |
| RU2350747C1 (en) * | 2007-06-18 | 2009-03-27 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Method of oil deposit development |
| CN101855421A (en) * | 2007-07-06 | 2010-10-06 | 哈利伯顿能源服务公司 | Heated fluid injection using multilateral wells |
| RU2433254C1 (en) * | 2010-04-21 | 2011-11-10 | Открытое акционерное общество "Татнефть" имени В.Д. Шашина | Method of oil filed development |
| CN102392625A (en) * | 2011-11-29 | 2012-03-28 | 中国石油天然气股份有限公司 | Gravity drainage assisted oil extraction method and oil extraction system |
| CN102892974A (en) * | 2010-02-12 | 2013-01-23 | 斯塔特伊石油公司 | Improvements in hydrocarbon recovery |
| CN103154431A (en) * | 2010-08-18 | 2013-06-12 | 未来能源有限责任公司 | Methods and systems for enhanced delivery of thermal energy for horizontal wellbores |
| CN203285410U (en) * | 2013-04-11 | 2013-11-13 | 中国石油天然气股份有限公司 | Steam injection process pipe column capable of improving utilization degree of horizontal section of thickened oil horizontal well |
| CN203394483U (en) * | 2013-06-06 | 2014-01-15 | 中国石油天然气股份有限公司 | Thin-layer thickened oil plane steam flooding injection and production system |
| CN103670353A (en) * | 2013-12-09 | 2014-03-26 | 中国石油集团长城钻探工程有限公司 | Steam assisted gravity drainage technology of double-branch horizontal well |
| CN103939069A (en) * | 2014-03-13 | 2014-07-23 | 中国石油大学(北京) | Steam-gas displacement and gravity oil drain composite exploiting method |
-
2014
- 2014-12-26 CN CN201410828028.4A patent/CN104563989A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040055750A1 (en) * | 2002-09-24 | 2004-03-25 | Restarick Henry L. | Multilateral injection/production/storage completion system |
| RU2350747C1 (en) * | 2007-06-18 | 2009-03-27 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Method of oil deposit development |
| CN101855421A (en) * | 2007-07-06 | 2010-10-06 | 哈利伯顿能源服务公司 | Heated fluid injection using multilateral wells |
| CN102892974A (en) * | 2010-02-12 | 2013-01-23 | 斯塔特伊石油公司 | Improvements in hydrocarbon recovery |
| RU2433254C1 (en) * | 2010-04-21 | 2011-11-10 | Открытое акционерное общество "Татнефть" имени В.Д. Шашина | Method of oil filed development |
| CN103154431A (en) * | 2010-08-18 | 2013-06-12 | 未来能源有限责任公司 | Methods and systems for enhanced delivery of thermal energy for horizontal wellbores |
| CN102392625A (en) * | 2011-11-29 | 2012-03-28 | 中国石油天然气股份有限公司 | Gravity drainage assisted oil extraction method and oil extraction system |
| CN203285410U (en) * | 2013-04-11 | 2013-11-13 | 中国石油天然气股份有限公司 | Steam injection process pipe column capable of improving utilization degree of horizontal section of thickened oil horizontal well |
| CN203394483U (en) * | 2013-06-06 | 2014-01-15 | 中国石油天然气股份有限公司 | Thin-layer thickened oil plane steam flooding injection and production system |
| CN103670353A (en) * | 2013-12-09 | 2014-03-26 | 中国石油集团长城钻探工程有限公司 | Steam assisted gravity drainage technology of double-branch horizontal well |
| CN103939069A (en) * | 2014-03-13 | 2014-07-23 | 中国石油大学(北京) | Steam-gas displacement and gravity oil drain composite exploiting method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368666A (en) * | 2015-07-20 | 2017-02-01 | 中国石油天然气股份有限公司 | Vertical well-horizontal well pattern for thickened oil and thickened oil exploitation method |
| CN105089593A (en) * | 2015-08-03 | 2015-11-25 | 中国石油天然气股份有限公司 | SAGD well completion structure and exploitation method |
| CN110094191A (en) * | 2018-01-29 | 2019-08-06 | 中国石油化工股份有限公司 | A kind of thermal production well fragment-force injection-production column jacket and method |
| CN110094191B (en) * | 2018-01-29 | 2021-06-29 | 中国石油化工股份有限公司 | Forced segmented injection-production pipe column and method for thermal production well |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102392625B (en) | Gravity drainage assisted oil extraction method and oil extraction system | |
| US9567842B2 (en) | Radial fishbone SAGD | |
| CN103615224B (en) | Method for exploiting heavy oil reservoir by improving steam assisted gravity drainage through solvent and well pattern structure | |
| CN104514535B (en) | Same-well injection-production thermal oil production pipe column for vertical well and oil production method thereof | |
| RU2436943C1 (en) | Procedure for extraction of high viscous oil from deviating hole by method of steam cyclic pumping into reservoir | |
| RU2442883C1 (en) | Method for development of high-viscosity oil reserves | |
| US10995596B2 (en) | Single well cross steam and gravity drainage (SW-XSAGD) | |
| CN203394483U (en) | Thin-layer thickened oil plane steam flooding injection and production system | |
| CN102747967A (en) | Multi-stage segmented release water exploration pipe column and method for casing completion multi-stage fractured horizontal well | |
| CN204457706U (en) | Same-well injection-production thermal oil production pipe column for vertical well | |
| CN105625993A (en) | Hot dry rock multi-circulation heating system and production method thereof | |
| CN105822276A (en) | Inter-crack space synchronous water injection-oil extraction method of multistage fracturing horizontal well | |
| CN103867172B (en) | Injection-production system and injection-production method | |
| CN203394482U (en) | Thickened oil exploitation device for horizontal well | |
| CN102213089A (en) | Oil extraction method and oil extraction system for shallow heavy oil reservoir | |
| CN104563989A (en) | Same-well injection-production thermal oil extraction method for horizontal well and tubular column thereof | |
| RU2456441C1 (en) | Production method of high-viscous oil by means of simultaneous pumping of steam and extraction of liquid from single horizontal well | |
| CA2890491C (en) | Hydrocarbon recovery start-up process | |
| CN203808959U (en) | Injection-production system | |
| CN204457705U (en) | Same-well injection-production thermal oil production pipe column for horizontal well | |
| CN202788638U (en) | Multi-stage segmented releasing water exploration pipe column for casing completion multi-stage fractured horizontal well | |
| RU2339807C1 (en) | Method of extraction of heavy and high viscous hydrocarbons from undeground deposits | |
| RU2555163C1 (en) | Method of high-viscosity oil field production with horizontal wells | |
| US20140076566A1 (en) | Use of Underground Access to Improve Steam Distribution in SAGD Operations | |
| RU2339808C1 (en) | Method for extraction of heavy and high viscous hydrocarbons out of underground deposit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |