CN105089648A - Device and method for nested layered injection of isotopic tracer - Google Patents
Device and method for nested layered injection of isotopic tracer Download PDFInfo
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- CN105089648A CN105089648A CN201410138111.9A CN201410138111A CN105089648A CN 105089648 A CN105089648 A CN 105089648A CN 201410138111 A CN201410138111 A CN 201410138111A CN 105089648 A CN105089648 A CN 105089648A
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- valve
- isotopic tracer
- oil reservoir
- injection device
- layering
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Abstract
The invention relates to the field of oilfield development, and provides a device and a method for nested layered injection of isotopic tracers. The device comprises an injection container, a water injection pipeline, and valves, and also comprises a sleeve, an oil pipe, a central pipe, and a packer. In the method, through controlling the switches of the valves, the isotopic tracer is injected into corresponding oil layers respectively through the sleeve, the oil pipe, and the central pipe, so as to realize layered injection of the isotopic tracer. The nested layered injection device and the layered injection method realize layered injection of different kinds of isotopic tracers, and injection volume of the isotopic tracer of each oil layer is accurately controlled, accurate monitoring of the isotopic tracer of each oil layer is realized. The device and the method have significant value for determining oil reservoir parameter distribution, reservoir exploitation evaluation, follow-up development scheme design determination, adjustment, and implementation.
Description
Technical field
The present invention relates to oil field development field, be specially a kind of nested type layering injection device and method of isotopic tracer.
Background technology
Between oil well, tracer technique is reservoir engineering means important in oil extraction in oil field process, is widely used in production practices.Between oil well, tracer technique reflects the connection situation of oil-water well in oil reservoir development process, grasps the parameters such as direction of propulsion, displacement velocity, sweep area and the reservoir heterogeneity injecting water, thus instructs design and the adjustment in oilfield exploitation later stage of oilfield exploitation.
At present, the most widely used tracer technique adopts isotopic tracer to inject oil reservoir to carry out inter-well tracer test, for multilayered reservoir, simultaneously traditional injection technique isotopic tracer is injected into multiple oil reservoir, accurately can not control the isotopic tracer injection rate of each oil reservoir, accurate measurements cannot be carried out to the isotopic tracer of each oil reservoir, add the interlayer contradiction of oil field development, have influence on the mensuration of oil reservoir parameters and the evaluation of oil reservoir exploitation.
Summary of the invention
In order to solve above-mentioned technical problem, the invention provides a kind of nested type layering injection device of isotopic tracer, and adopt this layering injection device isotopic tracer to be carried out to the method for layering injection.
The invention provides a kind of nested type layering injection device of isotopic tracer, according to Fig. 1, comprise an injection container, one end of described injection container is connected with a waterflood-transmission line with four points of high pressure valves 7 by valve 8 successively, the other end of described injection container is connected with valve 9, described layering injection device by upper under set gradually valve 12, valve 11, valve 10, valve 3, valve 1, valve 5, valve 4, valve 2, valve 6, described layering injection device also comprises sleeve pipe 13, described sleeve pipe 13 inner sleeve has oil pipe 14, described oil pipe 14 inner sleeve has central tube 15, described sleeve pipe 13, oil pipe 14 is connected with described waterflood-transmission line respectively with central tube 15, described sleeve pipe 13 is connected with upper oil reservoir, described oil pipe 14 is connected with middle oil reservoir, described central tube 15 is connected with lower oil reservoir, described sleeve pipe 13 under ground portion arranges 2 packers 14 between upper oil reservoir and middle oil reservoir, 2 packers 14 are set between middle oil reservoir and lower oil reservoir.
Adopt an isotopic tracer layering method for implanting for above-mentioned nested type layering injection device, when upwards oil reservoir injects isotopic tracer, according to Fig. 2, concrete steps are as follows:
A. valve 9 is connected with valve 2;
B. valve 2 and valve 6 are closed, valve 7, valve 8, valve 9 are opened, is forced into 30-40Mpa, preferred 35Mpa, pressure testing no seepage and no leakage;
C. valve 7 being closed, wait laying down in pipe after process pressure, an isotopic tracer being injected described layering injection device;
D. valve 2, valve 7 are opened, clear water through valve 7, valve 8, valve 9, valve 2 upper oil reservoir corresponding for isotopic tracer sprue bushing.
Adopt an isotopic tracer layering method for implanting for above-mentioned nested type layering injection device, when injecting isotopic tracer to middle oil reservoir, according to Fig. 3, concrete steps are as follows:
A. valve 9 is connected with valve 1;
B. valve 2 and valve 5 are closed, valve 7, valve 8, valve 9 are opened, is forced into 30-40Mpa, preferred 35Mpa, pressure testing no seepage and no leakage;
C. valve 7 being closed, wait laying down in pipe after process pressure, an isotopic tracer being injected described layering injection device;
D. valve 1, valve 7 are opened, clear water injects the corresponding oil reservoir of oil pipe through valve 7, valve 8, valve 9, valve 1 isotopic tracer.
Adopt an isotopic tracer layering method for implanting for above-mentioned nested type layering injection device, when downward oil reservoir injects isotopic tracer, according to Fig. 4, concrete steps are as follows:
A. valve 9 is connected with valve 12;
B. valve 10 and valve 11 are closed, valve 7, valve 8, valve 9, valve 12 are opened, is forced into 30-40Mpa, preferred 35Mpa, pressure testing no seepage and no leakage;
C. valve 7 being closed, wait laying down in pipe after process pressure, an isotopic tracer being injected described layering injection device;
D. valve 7, valve 10 are opened, clear water injects lower oil reservoir corresponding to central tube through valve 7, valve 8, valve 9, valve 12, valve 10 isotopic tracer.
Preferably, isotopic tracer injects the mode of described layering injection device for slowly injecting, and forms the tracer slug be evenly distributed in oil well pipe.
Preferably, isotopic tracer is for containing
3the isotopic tracer of H, to contain
35the isotopic tracer of S or contain
125the isotopic tracer of I.Particularly, contain
3the isotopic tracer of H comprises HTO, tritium for ethanol, contains
35the isotopic tracer of S comprises
35s-aqueous sodium persulfate solution, contains
125the isotopic tracer of I comprises
125i-sodium iodide aqueous solution.
Beneficial effect of the present invention: inject isotopic tracer by layering, accurately can control the isotopic tracer injection rate of each oil reservoir, realize the precise monitoring of each oil reservoir isotopic tracer, for determining that oil deposit parameter distributes, carry out reservoir exploitation evaluation, determine that the design of subsequent development scheme, adjustment and enforcement have important value.
Accompanying drawing explanation
Fig. 1 is nested type layering injection device schematic diagram of the present invention;
Fig. 2 is the nested type layering injection device schematic diagram of upper oil reservoir when being connected with waterflood-transmission line;
Fig. 3 is the nested type layering injection device schematic diagram of middle oil reservoir when being connected with waterflood-transmission line;
Fig. 4 is the nested type layering injection device schematic diagram of lower oil reservoir when being connected with waterflood-transmission line;
Number in the figure is described as follows:
1-12 represents valve;
13 sleeve pipes; 14 oil pipes; 15 central tubes; 16 packers.
Detailed description of the invention
Detailed description of the invention below can make the present invention of those skilled in the art's comprehend, but does not limit the present invention in any way.
embodiment 1:
According to Fig. 1, nested type layering injection device of the present invention, comprise injection container, one end of described injection container is connected with a waterflood-transmission line with four points of high pressure valves 7 by valve 8 successively, the other end of described injection container is connected with valve 9, described layering injection device by upper under set gradually valve 12, valve 11, valve 10, valve 3, valve 1, valve 5, valve 4, valve 2, valve 6, described layering injection device also comprises sleeve pipe 13, described sleeve pipe 13 inner sleeve has oil pipe 14, described oil pipe 14 inner sleeve has central tube 15, described sleeve pipe 13, oil pipe 14 is connected with described waterflood-transmission line respectively with central tube 15, described sleeve pipe 13 is connected with upper oil reservoir, described oil pipe 14 is connected with middle oil reservoir, described central tube 15 is connected with lower oil reservoir, between the upper oil reservoir of described sleeve pipe 13 under ground portion and middle oil reservoir, 2 packers 14 are set, 2 packers 14 are set between middle oil reservoir and lower oil reservoir.
embodiment 2:
According to Fig. 2, upwards oil reservoir injects HTO, and concrete steps are as follows:
A. valve 9 is connected with valve 2;
B. valve 2 and valve 6 are closed, valve 7, valve 8, valve 9 are opened, is forced into 35Mpa, pressure testing no seepage and no leakage;
C. valve 7 being closed, wait laying down in pipe after process pressure, HTO slowly being injected described layering injection device;
D. valve 2, valve 7 are opened, clear water brings upper oil reservoir corresponding to sleeve pipe through valve 7, valve 8, valve 9, valve 2 into HTO.
embodiment 3:
According to Fig. 3, upwards oil reservoir injects
35s-aqueous sodium persulfate solution, concrete steps are as follows:
A. valve 9 is connected with valve 1;
B. valve 2 and valve 5 are closed, valve 7, valve 8, valve 9 are opened, is forced into 35Mpa, pressure testing no seepage and no leakage;
C. valve 7 is closed, wait laying down in pipe after process pressure, will
35s-aqueous sodium persulfate solution slowly injects described layering injection device;
D. valve 1, valve 7 are opened, clear water is through valve 7, valve 8, valve 9,1, valve
35s-aqueous sodium persulfate solution brings middle oil reservoir corresponding to oil pipe into.
embodiment 4:
According to Fig. 4, downward oil reservoir injects
125i-sodium iodide aqueous solution, concrete steps are as follows:
A. valve 9 is connected with valve 12;
B. valve 10 and valve 11 are closed, valve 7, valve 8, valve 9, valve 12 are opened, is forced into 35Mpa, pressure testing no seepage and no leakage;
C. valve 7 is closed, wait laying down in pipe after process pressure, will
125i-sodium iodide aqueous solution slowly injects described layering injection device;
D. valve 7, valve 10 are opened, clear water is through valve 7, valve 8, valve 9, valve 12,10, valve
125i-sodium iodide aqueous solution brings lower oil reservoir corresponding to central tube into.
Claims (7)
1. the nested type layering injection device of an isotopic tracer, it comprises an injection container, one end of described injection container is connected with a waterflood-transmission line with one or four points of high pressure valves by a valve successively, the other end of described injection container is connected with a valve, described layering injection device arranges M valve, it is characterized in that, described layering injection device also comprises a sleeve pipe, described sleeve pipe inner sleeve has an oil pipe, described oil pipe inner sleeve has a central tube, described sleeve pipe, described oil pipe is connected with described waterflood-transmission line respectively with described central tube, described sleeve pipe is connected with upper oil reservoir, described oil pipe is connected with middle oil reservoir, described central tube is connected with lower oil reservoir, described sleeve pipe under ground portion is between upper oil reservoir and middle oil reservoir, between middle oil reservoir and lower oil reservoir, N number of packer is set.
2. layering injection device according to claim 1, is characterized in that, M=12.
3. layering injection device according to claim 1, is characterized in that, N=4.
4. adopt an isotopic tracer layering method for implanting for the nested type layering injection device described in any one of claim 1-3, concrete steps are as follows:
A. the other end of described water filling container is connected with described waterflood-transmission line by described valve;
B. the opening and closing of described valve are controlled, pressure testing 30-40MPa;
C. described four points of high pressure valves being closed, wait laying down in pipe after process pressure, an isotopic tracer being injected described layering injection device;
D. control the opening and closing of described valve, described isotopic tracer enters oil reservoir corresponding to described sleeve pipe, described oil pipe and described central tube respectively through described valve.
5. layering method for implanting according to claim 4, is characterized in that, step b pressure testing 35MPa.
6. layering method for implanting according to claim 4, is characterized in that, isotopic tracer described in step c injects the mode of described layering injection device for slowly injecting.
7. layering method for implanting according to claim 4, is characterized in that, isotopic tracer described in step c is for containing
3the isotopic tracer of H, to contain
35the isotopic tracer of S or contain
125the isotopic tracer of I.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410138111.9A CN105089648A (en) | 2014-05-22 | 2014-05-22 | Device and method for nested layered injection of isotopic tracer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410138111.9A CN105089648A (en) | 2014-05-22 | 2014-05-22 | Device and method for nested layered injection of isotopic tracer |
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| CN105089648A true CN105089648A (en) | 2015-11-25 |
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| CN201410138111.9A Pending CN105089648A (en) | 2014-05-22 | 2014-05-22 | Device and method for nested layered injection of isotopic tracer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105080718A (en) * | 2014-05-08 | 2015-11-25 | 肖继林 | Room ventilating and dedusting device |
| CN106761610A (en) * | 2016-12-26 | 2017-05-31 | 中国石油天然气股份有限公司 | Layered water injection process tubular column and method thereof |
| CN110514568A (en) * | 2018-05-22 | 2019-11-29 | 中国石油化工股份有限公司 | Rock permeability performance anisotropy measurement device and method |
| CN118130758A (en) * | 2024-03-12 | 2024-06-04 | 中国矿业大学(北京) | Large-area horizontal delivery equipment and delivery method for in-situ soil layer isotope tracer |
-
2014
- 2014-05-22 CN CN201410138111.9A patent/CN105089648A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105080718A (en) * | 2014-05-08 | 2015-11-25 | 肖继林 | Room ventilating and dedusting device |
| CN106761610A (en) * | 2016-12-26 | 2017-05-31 | 中国石油天然气股份有限公司 | Layered water injection process tubular column and method thereof |
| CN110514568A (en) * | 2018-05-22 | 2019-11-29 | 中国石油化工股份有限公司 | Rock permeability performance anisotropy measurement device and method |
| CN118130758A (en) * | 2024-03-12 | 2024-06-04 | 中国矿业大学(北京) | Large-area horizontal delivery equipment and delivery method for in-situ soil layer isotope tracer |
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Application publication date: 20151125 |
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