CN105507887A - Process method for injecting tracer to make water exploration in high-water-content horizontal well and pipe column - Google Patents
Process method for injecting tracer to make water exploration in high-water-content horizontal well and pipe column Download PDFInfo
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- CN105507887A CN105507887A CN201511032675.5A CN201511032675A CN105507887A CN 105507887 A CN105507887 A CN 105507887A CN 201511032675 A CN201511032675 A CN 201511032675A CN 105507887 A CN105507887 A CN 105507887A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000008569 process Effects 0.000 title claims abstract description 17
- 239000000700 radioactive tracer Substances 0.000 title claims description 59
- 238000001514 detection method Methods 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 239000012530 fluid Substances 0.000 claims abstract description 20
- 238000012360 testing method Methods 0.000 claims abstract description 18
- 238000002347 injection Methods 0.000 claims abstract description 17
- 239000007924 injection Substances 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 6
- 238000005070 sampling Methods 0.000 claims abstract description 5
- 239000000243 solution Substances 0.000 claims description 11
- 238000012856 packing Methods 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 2
- 238000012216 screening Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 7
- 235000020681 well water Nutrition 0.000 description 7
- 239000002349 well water Substances 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 4
- 239000003129 oil well Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010795 Steam Flooding Methods 0.000 description 1
- 238000010796 Steam-assisted gravity drainage Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 230000009466 transformation 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
- E21B47/00—Survey of boreholes or wells
- E21B47/10—Locating fluid leaks, intrusions or movements
- E21B47/11—Locating fluid leaks, intrusions or movements using tracers; using radioactivity
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- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention belongs to the technical field of oil extraction in oil fields, and particularly relates to a tracer-injecting water-exploration process method and a pipe column for a high-water-content horizontal well. Determining tracers according to the properties of the fluid of the tested well, and screening out mutually incompatible tracers with different characteristics according to the number of test sections of the tested well; respectively calculating the dosage of different injected formation tracers; sequentially injecting different tracers into each interval of the tested well through a double-sealing single-clamping tubular column, and taking out the injection tubular column after injection of each interval is finished; and (3) putting the production pipe column, lifting the formation fluid to the ground, sampling and testing on the ground, detecting the content and concentration of different tracers in the produced liquid, and judging the water layer section according to the detection structure.
Description
Technical field
The invention belongs to oil extraction in oil field technical field, particularly a kind of High water cut horizontal well note tracer water detection process and tubing string.
Background technology
Well water is ubiquitous problem in oilfield development process, particularly for water drive (water injection well, Bian Shui and Di Shui) oil field, because reservoir physical property is uneven and development plan and the reason such as development stimulation is improper, make water uneven in machine and transverse direction, cause the too early water logging in oil field, oil recovery rate reduces.High water cut horizontal well have impact on the performance of oil well productivity greatly.Carry out improvement to High water cut horizontal well and accurately need judge water exit interval, the representative means of current horizontal well water exploration mainly contain liquid producing profile log water detection, Neutron Hydrogen activation test water detection and segmentation production test water detection.Liquid producing profile log water detection technology starts the impact of the factor such as discharge capacity, horizontal segment laminar flow by turbine flowmeter, and measuring accuracy is lower, treats further raising to low-permeability oil deposit low discharge horizontal well compliance simultaneously; Neutron Hydrogen activation test water detection technology requires high, to day production fluid 10m to horizontal well Liquid output
3during the examination of/below d well surveying, do not detect peak value, cannot effectively explain.Segmentation production test water detection technology, by producing piecemeal, moisture chemical examination determines water exit interval, but this technology is when multistage transformation horizontal well water exploration application, the water detection cycle long (average 30 ~ 40 days/well).
At present, tracer monitoring technology is very extensive in field use, application is all had in the various displacement of reservoir oil engineerings such as water drive, non-phase-mixing driving, polymer flooding, steam flooding, SAGD, be mainly used for monitoring the connected relation between injection-production well, grasp direction of propulsion, displacement velocity, sweep area and the reservoir heterogeneity and remaining oil saturation distribution that inject water, in addition to tracer monitoring technology also for evaluate fracturing fracture developmental state and tracer generally evaluate the of the fracturing fluid row of returning situation.But at present, also do not inject at oil well the method that tracer judges High water cut horizontal well water exit interval.
Summary of the invention
A kind of employing is the object of the present invention is to provide to inject tracer to judge the method for High water cut horizontal well water exit interval at oil well.
The technical scheme that the present invention solves the employing of its technical problem is: a kind of High water cut horizontal well note tracer water detection process, and it is characterized in that, it comprises the following steps:
A, according to tested well fluids character, determine tracer, select different qualities and mutual exclusive tracer according to the test section number sieve of tested well testing simultaneously;
The different consumption injecting stratum tracer of B, respectively calculating;
C, by two envelope single deck tape-recorder tubing string, different tracer is injected each interval of tested well testing successively, after each interval has injected, trip out injection string;
D, under enter flow string, formation fluid is lifted to ground, carries out on ground sampling, chemically examining, the content of tracer different in production fluid and concentration are detected, judges water exit interval according to detection architecture.
Inject the consumption of stratum tracer in described step B, be calculated as follows:
m＝μπl
2hφS
w
In formula:
M---tracer consumption, kg
μ---Safety Injection coefficient
L---fracture half-length, m;
H---oil reservoir average thickness, m;
φ---oil reservoir average pore;
S
w---the average water saturation of oil reservoir.
By two envelope single deck tape-recorder tubing string, different tracer is injected each interval of tested well testing successively in described step C, comprises the following steps,
A, will under two envelope single deck tape-recorder tubing string to horizontal well bottom the first card sealing section in;
B, by the twin packer of two envelope single deck tape-recorder tubing string, packing is carried out to the first card sealing section;
C, by ground pumping mode, the first reactor solution to be injected in the first card sealing section by the screen casing between twin packer, make it in the first interval, form reactor solution slug;
D, drag tubing string from toe to heel successively, be upwards dragged to the second card sealing section;
E, repeat step b-d, by other different qualities and mutual exclusive tracer injects all the other card sealings respectively;
F, each interval trip out injection string after having injected.
After described step B calculates the consumption of different injection stratum tracer respectively, be by volume 1:5 ratio by different tracer respectively with the aqueous solution of saliferous 15000mg/L, and inject each interval by two envelope single deck tape-recorder tubing string again after being uniformly mixed.
A kind of High water cut horizontal well note tracer water detection two envelope single deck tape-recorder process pipe string, it comprises plug and the first oil pipe, it is characterized in that: plug is fixedly connected with the bottom of lower packet by the first oil pipe, the top of lower packet is connected with the bottom of screen casing by the second oil pipe, the top of screen casing is then connected to the bottom of upper packer by the 3rd oil pipe, upper packer top is connected with the 4th oil pipe extended to outside well.
Spacing between described lower packet 3 and upper packer 5 is 10M-20M.
The invention has the beneficial effects as follows: disclose a kind of High water cut horizontal well note tracer water detection process and tubing string, base area layer fluid, filter out fluid compatibility good, chemistry and biological stability good, easily detect, highly sensitive and mutual exclusive tracer, and tracer is dragged injection string by the different tracer successively each interval of Injection Level well by two envelope single deck tape-recorder, enter normal flow string under rear to produce, sample on ground, chemical examination, carry out detection to tracer type and concentration in institute's sample thief to analyze, by achieving the judgement to High water cut horizontal well water exit interval to the monitoring of tracer content in sample and concentration.
Accompanying drawing explanation
Below in conjunction with embodiment accompanying drawing, the present invention is further described.
Fig. 1 is horizontal well water exploration two envelope single deck tape-recorder process pipe string schematic diagram;
In figure: 1, plug; 2, the first oil pipe; 3, lower packet; 4, screen casing; 5, upper packer; 6, the 4th oil pipe; 7, the second oil pipe; 8, the 3rd oil pipe.
Detailed description of the invention
Embodiment 1
In order to there be understanding clearly to technical characteristic of the present invention, object and beneficial effect, existing following detailed description is carried out to technical scheme of the present invention, but can not be interpreted as to of the present invention can the restriction of practical range.
A kind of High water cut horizontal well note tracer water detection process of the present invention, it comprises the following steps:
A, according to tested well fluids character, determine tracer, select different qualities and mutual exclusive tracer according to the test section number sieve of tested well testing simultaneously;
Wherein need to filter out that fluid compatibility is good, chemistry and biological stability good, easily detect, highly sensitive tracer, the determination of tracer belongs to common practise general in the work progress of this area and does not describe in detail at this;
The different consumption injecting stratum tracer of B, respectively calculating, is calculated as follows:
m＝μπl
2hφS
w
In formula:
M---tracer consumption, kg
μ---Safety Injection coefficient
L---fracture half-length, m;
H---oil reservoir average thickness, m;
φ---oil reservoir average pore;
S
w---the average water saturation of oil reservoir;
C, by two envelope single deck tape-recorder tubing string, different tracer is injected each interval of tested well testing successively, comprises the following steps,
A, will under two envelope single deck tape-recorder tubing string to horizontal well bottom the first card sealing section in;
B, by the twin packer of two envelope single deck tape-recorder tubing string, packing is carried out to the first card sealing section;
C, by ground pumping mode, the first reactor solution to be injected in the first card sealing section by the screen casing between twin packer, make it in the first interval, form reactor solution slug;
D, drag tubing string from toe to heel successively, be upwards dragged to the second card sealing section;
E, repeat step b-d, by other different qualities and mutual exclusive tracer injects all the other card sealings respectively;
F, each interval trip out injection string after having injected;
D, under enter flow string, formation fluid is lifted to ground, carries out on ground sampling, chemically examining, the content of tracer different in production fluid and concentration are detected, judges water exit interval according to detection architecture.
High water cut horizontal well note tracer water detection two envelope single deck tape-recorder process pipe string wherein in step C, it comprises plug 1 and the first oil pipe 2, plug 1 is fixedly connected with the bottom of lower packet 3 by the first oil pipe 2, the top of lower packet 3 is connected with the bottom of screen casing 4 by the second oil pipe 7, the top of screen casing 4 is then connected to the bottom of upper packer 5 by the 3rd oil pipe 8, upper packer top is connected with the 4th oil pipe 6 extended to outside well.
Spacing between described lower packet 3 and upper packer 5 is 10M-20M.
Embodiment 2
For 5 sections of horizontal wells in the present embodiment.
1, according to tested well fluids character, tested by compatibility, screening A1, A2, A3, A4, A5 five kinds of non-interfering tracers;
2, according to oil-well strata production fluid situation, determine that injecting stratum reactor solution consumption is respectively m1, m2, m3, m4, m5.Be by volume again 1:5 ratio by five kinds of tracers respectively with the aqueous solution of saliferous 15000mg/L, and to be stirred on ground, make it mix;
3, by two envelope single deck tape-recorder tubing string, different tracer is injected each interval of tested well testing successively, comprises the following steps,
(1), will arrive in the first card sealing section of horizontal well bottom under two envelope single deck tape-recorder tubing string;
(2), by the twin packer of two envelope single deck tape-recorder tubing string, packing is carried out to the first card sealing section;
(3), by ground pumping mode A1 reactor solution is injected in the first card sealing section by the screen casing between twin packer, make it in the first interval, form reactor solution slug;
(4), successively drag tubing string from toe to heel, be upwards dragged to the second card sealing section;
(5) A2 reactor solution is injected in the second card sealing section and form reactor solution slug; After successively A3, A4, A5 tracer is injected respectively to other intervals;
(6) treat, by after five kinds of tracer mixed liquors injections, to trip out injection string.
4, enter flow string under, formation fluid is lifted to ground, carry out on ground sampling, chemically examining, the content of tracer different in production fluid and concentration are detected, judges water exit interval according to detection architecture.
Claims (6)
1. a High water cut horizontal well note tracer water detection process, it is characterized in that, it comprises the following steps:
A, according to tested well fluids character, determine tracer, select different qualities and mutual exclusive tracer according to the test section number sieve of tested well testing simultaneously;
The different consumption injecting stratum tracer of B, respectively calculating;
C, by two envelope single deck tape-recorder tubing string, different tracer is injected each interval of tested well testing successively, after each interval has injected, trip out injection string;
D, under enter flow string, formation fluid is lifted to ground, carries out on ground sampling, chemically examining, the content of tracer different in production fluid and concentration are detected, judges water exit interval according to detection architecture.
2. a kind of High water cut horizontal well note tracer water detection process according to claim 1, is characterized in that: the consumption injecting stratum tracer in described step B, is calculated as follows:
m＝μπl
2hφS
w
In formula:
M---tracer consumption, kg
μ---Safety Injection coefficient
L---fracture half-length, m;
H---oil reservoir average thickness, m;
φ---oil reservoir average pore;
S
w---the average water saturation of oil reservoir.
3. a kind of High water cut horizontal well note tracer water detection process according to claim 1, is characterized in that: by two envelope single deck tape-recorder tubing string, different tracer is injected each interval of tested well testing successively in described step C, comprise the following steps,
A, will under two envelope single deck tape-recorder tubing string to horizontal well bottom the first card sealing section in;
B, by the twin packer of two envelope single deck tape-recorder tubing string, packing is carried out to the first card sealing section;
C, by ground pumping mode, the first reactor solution to be injected in the first card sealing section by the screen casing between twin packer, make it in the first interval, form reactor solution slug;
D, drag tubing string from toe to heel successively, be upwards dragged to the second card sealing section;
E, repeat step b-d, by other different qualities and mutual exclusive tracer injects all the other card sealings respectively;
F, each interval trip out injection string after having injected.
4. a kind of High water cut horizontal well note tracer water detection process according to claim 1, it is characterized in that: after described step B calculates the consumption of different injection stratum tracer respectively, be by volume 1:5 ratio by different tracer respectively with the aqueous solution of saliferous 15000mg/L, and inject each interval by two envelope single deck tape-recorder tubing string again after being uniformly mixed.
5. High water cut horizontal well note tracer water detection two envelope single deck tape-recorder process pipe string, it comprises plug (1) and the first oil pipe (2), it is characterized in that: plug (1) is fixedly connected with by the bottom of the first oil pipe (2) with lower packet (3), the top of lower packet (3) is connected with the bottom of screen casing (4) by the second oil pipe (7), the top of screen casing (4) is then connected to the bottom of upper packer (5) by the 3rd oil pipe (8), upper packer top is connected with the 4th oil pipe (6) extended to outside well.
6. a kind of High water cut horizontal well note tracer water detection according to claim 5 two envelope single deck tape-recorder process pipe string, is characterized in that: the spacing between described lower packet (3) and upper packer (5) is 10M-20M.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511032675.5A CN105507887A (en) | 2015-12-31 | 2015-12-31 | Process method for injecting tracer to make water exploration in high-water-content horizontal well and pipe column |
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| CN201511032675.5A CN105507887A (en) | 2015-12-31 | 2015-12-31 | Process method for injecting tracer to make water exploration in high-water-content horizontal well and pipe column |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888653A (en) * | 2016-05-06 | 2016-08-24 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Multi-segment fractured horizontal well tracing and water finding method |
| CN106014389A (en) * | 2016-04-26 | 2016-10-12 | 中国石油天然气股份有限公司 | Method for testing oil-water contribution of each section of volume fractured horizontal well by using chemical tracer |
| CN108104801A (en) * | 2017-12-30 | 2018-06-01 | 中国石油天然气股份有限公司 | Horizontal well tracer liquid production profile testing pipe column and method |
| CN109138978A (en) * | 2018-09-29 | 2019-01-04 | 北京大德广源石油技术服务有限公司 | Horizontal well oil-producing based on control release Tracer Technique contributes test method |
| CN112302579A (en) * | 2020-11-04 | 2021-02-02 | 中国石油大学(北京) | Horizontal well subsection sand prevention water plugging system and method |
| CN112761618A (en) * | 2021-01-26 | 2021-05-07 | 四川松云科技有限公司 | Novel horizontal oil well liquid production profile testing method |
| CN112761619A (en) * | 2021-01-26 | 2021-05-07 | 四川松云科技有限公司 | Horizontal oil well liquid production profile calculation method |
| CN114562239A (en) * | 2022-03-07 | 2022-05-31 | 吉林大学 | Method and device for improving hydrate reservoir exploitation efficiency by adopting nanofluid |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014389A (en) * | 2016-04-26 | 2016-10-12 | 中国石油天然气股份有限公司 | Method for testing oil-water contribution of each section of volume fractured horizontal well by using chemical tracer |
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| CN105888653A (en) * | 2016-05-06 | 2016-08-24 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Multi-segment fractured horizontal well tracing and water finding method |
| CN105888653B (en) * | 2016-05-06 | 2019-10-22 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of multistage pressure break horizontal well tracer groundwater prospecting method |
| CN108104801A (en) * | 2017-12-30 | 2018-06-01 | 中国石油天然气股份有限公司 | Horizontal well tracer liquid production profile testing pipe column and method |
| CN109138978A (en) * | 2018-09-29 | 2019-01-04 | 北京大德广源石油技术服务有限公司 | Horizontal well oil-producing based on control release Tracer Technique contributes test method |
| CN112302579A (en) * | 2020-11-04 | 2021-02-02 | 中国石油大学(北京) | Horizontal well subsection sand prevention water plugging system and method |
| CN112761618A (en) * | 2021-01-26 | 2021-05-07 | 四川松云科技有限公司 | Novel horizontal oil well liquid production profile testing method |
| CN112761619A (en) * | 2021-01-26 | 2021-05-07 | 四川松云科技有限公司 | Horizontal oil well liquid production profile calculation method |
| CN112761619B (en) * | 2021-01-26 | 2022-07-19 | 四川松云科技有限公司 | Horizontal oil well liquid production profile calculation method |
| CN112761618B (en) * | 2021-01-26 | 2022-07-22 | 四川松云科技有限公司 | Horizontal oil well liquid production profile testing method |
| CN114562239A (en) * | 2022-03-07 | 2022-05-31 | 吉林大学 | Method and device for improving hydrate reservoir exploitation efficiency by adopting nanofluid |
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Application publication date: 20160420 |