CN104695945A - Method and system for measuring invasion depth of drilling fluid filtrate in reservoir - Google Patents
Method and system for measuring invasion depth of drilling fluid filtrate in reservoir Download PDFInfo
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- CN104695945A CN104695945A CN201510065177.4A CN201510065177A CN104695945A CN 104695945 A CN104695945 A CN 104695945A CN 201510065177 A CN201510065177 A CN 201510065177A CN 104695945 A CN104695945 A CN 104695945A
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- 238000005553 drilling Methods 0.000 title claims abstract description 64
- 239000012530 fluid Substances 0.000 title claims abstract description 49
- 239000000706 filtrate Substances 0.000 title claims abstract description 43
- 230000009545 invasion Effects 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000001914 filtration Methods 0.000 claims abstract description 12
- 238000000611 regression analysis Methods 0.000 claims abstract description 4
- 238000012360 testing method Methods 0.000 claims description 25
- 239000011435 rock Substances 0.000 claims description 18
- 230000002123 temporal effect Effects 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 4
- 230000032683 aging Effects 0.000 claims description 3
- 239000008398 formation water Substances 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 230000035699 permeability Effects 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract 1
- 230000008569 process Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000009533 lab test Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000009467 reduction 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
Landscapes
- 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 relates to a method and a system for measuring the invasion depth of a drilling fluid filtrate in a reservoir. The method comprises the following steps: measuring discrete filtration loss in a plurality of time segments; determining relevance between the time and the filtration loss through regression analysis; determining actual invasion volume of the drilling fluid filtrate according to the relevance between the time and the filtration loss; determining theoretical invasion volume according to drilling information; determining the invasion depth according to the actual invasion volume and the theoretical invasion volume. The system comprises a module for determining relevance between filtration loss and time, a module for determining actual invasion volume, a module for determining theoretical invasion volume and a module for determining invasion depth. The method and the system for measuring the invasion depth of the drilling fluid filtrate in the reservoir are simple and practical, and high in operability; in addition, compared with a permeability recovery value method in the prior art, the method has the advantages of excellent reproducibility and high reliability of judging results.
Description
Technical field
The invention belongs to the technical field of petroleum drilling and mining, relate to measuring method and system that a kind of drilling fluid filtrate invades depth of reservoirs.
Background technology
In petroleum drilling and mining process, the degree (degree of depth) of drilling fluid filtrate intrusion reservoir is directly connected to the impact on reservoir quality.At present, laboratory evaluation reservoir invades the method mainly permeability resume figure method of degree, and the method is more single, and reappearance is not fine.The depth of invasion of drilling fluid filtrate in reservoir embodies the important parameter of drilling fluid system reservoir protection effect, only predicts by log parameter at present, there is no and accurately determine that drilling fluid filtrate is in the method for testing invading depth of reservoirs.
Summary of the invention
In view of the foregoing, a kind of drilling fluid filtrate that the present invention proposes invades depth of reservoirs measuring method and system, object is to provide the good drilling fluid filtrate of a kind of reproducibility and invades depth of reservoirs measuring method and system, by invading accurately determining of depth of reservoirs to filtrate thus evaluating the extent of injury of filtrate intrusion to reservoir.
For achieving the above object, technical scheme provided by the invention is as follows:
A kind of drilling fluid filtrate invades depth of reservoirs measuring method, comprises the steps:
Measure the discrete filter loss of multiple time section;
The correlation between time and filter loss is determined by regression analysis;
According to the correlation determination drilling fluid filtrate actual intrusion volume between time and filter loss;
Theoretical intrusion volume is determined according to drilling information;
Volume determination depth of invasion is invaded according to actual intrusive body sum theory.
Further, according to the correlation Q=at between following expression determination drilling time and filter loss
1/2,
Wherein, t is the testing time;
Q is the filter loss function corresponding with time period t;
A returns according to test result the constant obtained.
Further, actual intrusion volume V is determined according to following expression
1=(A
reservoir/ A
rock core) × Q,
Wherein, V
1for reality invades volume;
A
reservoirfor drilling fluid filtrate and reservoir contact area; Its design formulas is A
storage=2 π Rh, wherein, R is well radius; H is reservoir thickness parameter;
A
rock corefor core section amasss;
Q is and filter loss function.
Further, theoretical intrusion volume is determined according to following expression
Wherein, V
2for theory invades volume;
R is well radius;
R is depth of invasion;
H is reservoir thickness parameter;
reservoir porosity.
Further, according to following expression determination depth of invasion
Wherein, V
1for reality invades volume;
H is reservoir thickness parameter;
reservoir porosity;
R is well radius.
Wherein, the filter loss measuring multiple time section adopts HTHP dynamic filtration instrument to measure.
Wherein, the filter loss adopting HTHP dynamic filtration instrument to measure multiple time section comprises the steps,
Prepare drilling fluid system, under being placed in roller furnace uniform temperature aging 16 hours, take out and be cooled to room temperature;
Rock core containing saturated formation water is placed in core holding unit, adds confined pressure, described drilling fluid system is placed in axe body, is warming up to target temperature, start timing test filter loss until sample meets the sample capacity of regression calculation.
Wherein, described test filter loss method of measurement is, between 0 ~ 2 hour, every 15 minutes notes filter loss, after 2 hours, remembers a filter loss every half an hour.
On said method basis, the application forms a kind of drilling fluid filtrate and invades depth of reservoirs measuring system, comprises,
The correlation determining module of filter loss and time, for filter loss determination filter loss and the temporal correlation of the test according to multiple time section;
Actual intrusion volume determination module, for determining actual intrusive body accumulated amount according to filter loss and temporal correlation;
Theoretical intrusion volume determination module, for determining theoretical intrusive body accumulated amount;
Depth of invasion determination module, for according to actual intrusive body accumulated amount and theoretical intrusive body accumulated amount determination depth of invasion value.
Further, according to the correlation Q=at between following expression determination drilling time and filter loss in the correlation determining module of described filter loss and time
1/2,
Wherein, t is the testing time;
Q is the filter loss function corresponding with time period t;
A returns according to test result the constant obtained.
Further, described reality invades volume determination module, determines actual intrusion volume V according to following expression
1=(A
reservoir/ A
rock core) × Q,
Wherein, V
1for reality invades volume;
A
reservoirfor drilling fluid filtrate and reservoir contact area; Its design formulas is A
storage=2 π Rh, wherein, R is well radius; H is reservoir thickness parameter;
A
rock corefor core section amasss;
Q is and filter loss function.
Further, described theory invades volume determination module, determines theoretical intrusion volume according to following expression
Wherein, V
2for theory invades volume;
R is well radius;
R is depth of invasion;
H is reservoir thickness parameter;
reservoir porosity.
Further, in described depth of invasion determination module according to following expression determination depth of invasion
Wherein, V
1for reality invades volume;
H is reservoir thickness parameter;
reservoir porosity;
R is well radius.
In terms of existing technologies, its beneficial effect is as follows in the present invention:
Drill-in fluid filtrate of the present invention invades the measuring method of depth of reservoirs, and simple, action row is strong.In addition, it just has good reproducibility for existing permeability resume figure method, and judged result is with a high credibility.
Accompanying drawing explanation
Fig. 1 is measuring method flow chart.
Fig. 2 is reservoir depth of invasion schematic diagram.Wherein, R is well radius; R is depth of invasion; H is reservoir thickness parameter.
Fig. 3 is experimental data and fitting result schematic diagram in instantiation.
Detailed description of the invention
Clearly understand for making goal of the invention of the present invention, technical scheme and beneficial effect, below in conjunction with accompanying drawing, embodiments of the invention are described, it should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can be combined mutually.
Core of the present invention is according to the drilling fluid filtrate filter loss in test drilling process and well reservoir properties feature, determines filtrate depth of invasion, thus judges that filtrate invades the extent of injury to reservoir.That to be drilling fluid filtrate actual intrusion volume invade volume with theory to theoretical foundation of the present invention is equal.
Specific embodiment is that a kind of drilling fluid filtrate invades depth of reservoirs measuring method see Fig. 1, comprises
S101, measure the discrete filter loss of multiple time section;
S102, determine the correlation between time and filter loss by regression analysis;
S103, according to the correlation determination drilling fluid filtrate actual intrusion volume between time and filter loss;
S104, determine theoretical to invade volume according to drilling information;
S105, invade volume determination depth of invasion according to actual intrusive body sum theory.
During concrete enforcement, determine the correlation between drilling time and filter loss according to formula (1)
Q=at
1/2formula (1)
In above formula, t is the testing time; Q is the filter loss function corresponding with time period t; A returns according to test result the constant obtained.
During concrete enforcement, determine actual intrusion volume according to formula (2)
V
1=(A
reservoir/ A
rock core) × Q, formula (2)
Wherein, V
1for reality invades volume; A
reservoirfor drilling fluid filtrate and reservoir contact area; Its design formulas is A
storage=2 π Rh, in above formula, R is well radius; H is reservoir thickness parameter; A
rock corefor core section amasss
wherein, R
1for rock core radius; Q is and filter loss function.
During concrete enforcement, determine theoretical intrusion volume according to formula (3)
formula (3)
Intrusion volume as shown in Figure 2, is reduced to cylinder in Fig. 2 by the model of theory calculate, there is shown that R is well radius, r is depth of invasion and h is relation between reservoir thickness parameter.In above formula, V
2for theory invades volume; R is well radius; R is depth of invasion; H is reservoir thickness parameter;
for reservoir porosity, wherein, h reservoir thickness parameter;
reservoir porosity can be determined according to well reservoir properties feature, R well radius actual measurement gained.
In the specific implementation, determine depth of invasion according to formula (4),
formula (4)
In above formula, V
1for reality invades volume; H is reservoir thickness parameter;
reservoir porosity; R is well radius, and wherein, h is reservoir thickness parameter;
reservoir porosity; R is that the defining method of well radius is the same.In order to clearer expression, also above formula can be rewritten as follows formula (5),
formula (5)
Wherein, in formula, each implication is the same.
In the specific implementation, the filter loss measuring multiple time section adopts HTHP dynamic filtration instrument to measure.The filter loss adopting HTHP dynamic filtration instrument to measure multiple time section comprises the steps: step one, prepares drilling fluid system, under being placed in roller furnace uniform temperature aging 16 hours, takes out and is cooled to room temperature; Step 2, is placed in core holding unit by the rock core containing saturated formation water, adds confined pressure, described drilling fluid system is placed in axe body, is warming up to target temperature, starts timing test filter loss until sample meets the sample capacity of regression calculation.
According to the Variation Features of filter loss, test filter loss method of measurement is, between 0 ~ 2 hour, every 15 minutes notes filter loss, after 2 hours, remembers a filter loss every half an hour.
In order to clearer explanation said method is described in detail below in conjunction with the process of instantiation to the determination of depth of invasion.For NB31-1-3H well, for ensureing experiment unity, selected rock core is the product of same batch of same company, in order to judge the reproducibility of the technical program, test twice in the present embodiment, and twice test result compared, selected core parameters is in table 1.Drilling fluid system inorganic agent used is the product of same batch of same company, and selected drilling fluid composition is in table 2.
Table 1
| Core numbers | Diameter/cm | Length/cm | K 0/mD |
| 19# | 2.54 | 7.05 | 0.248 |
| 30# | 2.54 | 7.03 | 0.231 |
Table 2
First, test drilling fluid system dynamic filtration amount, test condition is: experimental temperature is 150 DEG C, pressure reduction 3.5MPa, and experimental data and fitting result are as shown in Figure 3.Twice parallel laboratory test matching equation is out respectively: the matched curve that 19# rock core obtains is Q=0.7342t
1/2, this goes out a=0.7342; The matched curve that 30# rock core obtains is Q=0.6447t
1/2, this goes out a=0.6447.
NB31-1-3H well reservoir properties feature is in table 3:
Table 3
| The degree of depth/m | Thickness/m | Average pore | Permeability/mD | Well radius/cm |
| 3973-4004 | 31 | 10.46％ | 0.25-0.58 | 10.8 |
Assuming that drilling period is one week (10080min), for 19# core filtration fitting result, all known parameters are substituted into formula (4) can be obtained:
According to said process, the filter loss matched curve Q=0.6447t obtained with 30# rock core leak-off medium
1/2based on, be the depth of invasion that a week (10080min) calculates same NB31-1-3H well reservoir with same drilling period, concrete calculating is the same, and repeat no more, result of calculation is r herein
2=42cm.
Contrast the depth of invasion that above-mentioned two groups of parallel laboratory tests obtain very close, prove that the method reappearance is better, can be used as the method for appraisal drilling liquid to reservoir damage.
There is provided a kind of drilling fluid filtrate to invade depth of reservoirs measuring system to comprise simultaneously,
The correlation determining module of filter loss and time, for filter loss determination filter loss and the temporal correlation of the test according to multiple time section;
Actual intrusion volume determination module, for determining actual intrusive body accumulated amount according to filter loss and temporal correlation;
Theoretical intrusion volume determination module, for determining theoretical intrusive body accumulated amount;
Depth of invasion determination module, for according to actual intrusive body accumulated amount and theoretical intrusive body accumulated amount determination depth of invasion value.
Wherein, the correlation that formula (1) is determined between drilling time and filter loss is adopted in the correlation determining module of described filter loss and time.
Wherein, described reality invades volume determination module, adopts formula (2) to determine actual intrusion volume.
Wherein, described theory invades volume determination module, adopts formula (3) to determine theoretical intrusion volume.
Wherein, formula (4) or formula (5) is adopted to determine depth of invasion in described depth of invasion determination module.
Above-mentioned is the detailed description of the invention of the application, but the embodiment that described content just adopts for the ease of understanding the application, and be not used to limit the application.Technician in any the application's art; under the prerequisite not departing from the spirit and scope disclosed by the application; any amendment and change can be done what implement in form and in details; but the protection domain of the application, the scope that still must define with appending claims is as the criterion.
Claims (13)
1. drilling fluid filtrate invades a depth of reservoirs measuring method, it is characterized in that:
Measure the discrete filter loss of multiple time section;
The correlation between time and filter loss is determined by regression analysis;
According to the correlation determination drilling fluid filtrate actual intrusion volume between time and filter loss;
Theoretical intrusion volume is determined according to drilling information;
Volume determination depth of invasion is invaded according to actual intrusive body sum theory.
2. drilling fluid filtrate as claimed in claim 1 invades depth of reservoirs measuring method, it is characterized in that: according to the correlation Q=at between following expression determination drilling time and filter loss
1/2,
Wherein, t is the testing time;
Q is the filter loss function corresponding with time period t;
A returns according to test result the constant obtained.
3. drilling fluid filtrate as claimed in claim 2 invades depth of reservoirs measuring method, it is characterized in that: determine actual intrusion volume V according to following expression
1=(A
reservoir/ A
rock core) × Q,
Wherein, V
1for reality invades volume;
A
reservoirfor drilling fluid filtrate and reservoir contact area; Its design formulas is A
storage=2 π Rh, wherein, R is well radius; H is reservoir thickness parameter;
A
rock corefor core section amasss;
Q is and filter loss function.
4. drilling fluid filtrate as claimed in claim 3 invades depth of reservoirs measuring method, it is characterized in that: determine theoretical intrusion volume according to following expression
Wherein, V
2for theory invades volume;
R is well radius;
R is depth of invasion;
H is reservoir thickness parameter;
reservoir porosity.
5. drilling fluid filtrate as claimed in claim 4 invades depth of reservoirs measuring method, it is characterized in that: according to following expression determination depth of invasion
Wherein, V
1for reality invades volume;
H is reservoir thickness parameter;
reservoir porosity;
R is well radius.
6. the drilling fluid filtrate as described in claim 1 to 5 any one invades depth of reservoirs measuring method, it is characterized in that: the filter loss measuring multiple time section adopts HTHP dynamic filtration instrument to measure.
7. drilling fluid filtrate as claimed in claim 6 invades depth of reservoirs measuring method, it is characterized in that: the filter loss adopting HTHP dynamic filtration instrument to measure multiple time section comprises the steps,
Prepare drilling fluid system, under being placed in roller furnace uniform temperature aging 16 hours, take out and be cooled to room temperature;
Rock core containing saturated formation water is placed in core holding unit, adds confined pressure, described drilling fluid system is placed in axe body, is warming up to target temperature, start timing test filter loss until sample meets the sample capacity of regression calculation.
8. drilling fluid filtrate as claimed in claim 7 invades depth of reservoirs measuring method, it is characterized in that: described test filter loss method of measurement is, between 0 ~ 2 hour, every 15 minutes notes filter loss, after 2 hours, remembers a filter loss every half an hour.
9. drilling fluid filtrate invades a depth of reservoirs measuring system, it is characterized in that: comprise,
The correlation determining module of filter loss and time, for filter loss determination filter loss and the temporal correlation of the test according to multiple time section;
Actual intrusion volume determination module, for determining actual intrusive body accumulated amount according to filter loss and temporal correlation;
Theoretical intrusion volume determination module, for determining theoretical intrusive body accumulated amount;
Depth of invasion determination module, for according to actual intrusive body accumulated amount and theoretical intrusive body accumulated amount determination depth of invasion value.
10. drilling fluid filtrate as claimed in claim 9 invades depth of reservoirs measuring system, it is characterized in that: according to the correlation Q=at between following expression determination drilling time and filter loss in the correlation determining module of described filter loss and time
1/2,
Wherein, t is the testing time;
Q is the filter loss function corresponding with time period t;
A returns according to test result the constant obtained.
11. drilling fluid filtrates as claimed in claim 10 invade depth of reservoirs measuring system, it is characterized in that: described reality invades volume determination module, determines actual intrusion volume V according to following expression
1=(A
reservoir/ A
rock core) × Q,
Wherein, V
1for reality invades volume;
A
reservoirfor drilling fluid filtrate and reservoir contact area; Its design formulas is A
storage=2 π Rh, wherein, R is well radius; H is reservoir thickness parameter;
A
rock corefor core section amasss;
Q is and filter loss function.
12. drilling fluid filtrates as claimed in claim 11 invade depth of reservoirs measuring system, it is characterized in that: described theory invades volume determination module, determine theoretical intrusion volume according to following expression
Wherein, V
2for theory invades volume;
R is well radius;
R is depth of invasion;
H is reservoir thickness parameter;
reservoir porosity.
13. drilling fluid filtrates as claimed in claim 12 invade depth of reservoirs measuring system, it is characterized in that: according to following expression determination depth of invasion in described depth of invasion determination module
Wherein, V
1for reality invades volume;
H is reservoir thickness parameter;
reservoir porosity;
R is well radius.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093299A (en) * | 2016-06-02 | 2016-11-09 | 西南石油大学 | A kind of tight gas reservoir drilling fluid damage evaluation experimental technique |
| CN106153518A (en) * | 2016-06-22 | 2016-11-23 | 西南石油大学 | Compact sandstone gas reservoir fracturing liquid damage experimental evaluation method |
| CN107965310A (en) * | 2018-01-11 | 2018-04-27 | 中国海洋石油集团有限公司 | A kind of mud filtrate invasion depth test device and test method |
| CN109989743A (en) * | 2019-05-06 | 2019-07-09 | 中海油田服务股份有限公司 | A kind of method and system of determining mud filtrate depth of invasion |
| CN111967162A (en) * | 2020-08-20 | 2020-11-20 | 西南石油大学 | Compact sandstone gas reservoir drilling fluid reservoir damage evaluation method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2119496U (en) * | 1992-02-25 | 1992-10-21 | 大庆石油管理局钻井研究所 | Circulation type filtrate loss instrument for drilling fluid |
| CN201292847Y (en) * | 2008-11-28 | 2009-08-19 | 中国地质大学（武汉） | High-fidelity well drilling strata dropping simulating device |
| US20100169020A1 (en) * | 2008-12-29 | 2010-07-01 | Yuqiang Niu | Method and apparatus for real time oil based mud contamination monitoring |
| CN101775983A (en) * | 2010-02-09 | 2010-07-14 | 康志勇 | Sandstone reservoir water layer resistivity-based stratum data processing method |
| US20100230108A1 (en) * | 2003-09-17 | 2010-09-16 | Halliburton Energy Services, Inc. | Methods of Degrading Subterranean Filter Cakes |
| CN103015996A (en) * | 2012-12-31 | 2013-04-03 | 中国石油大学(华东) | Method for predicting high steep structure stratum leakage velocity before drilling |
| CN103233725A (en) * | 2013-04-17 | 2013-08-07 | 西南石油大学 | Device and method for determining high temperature and high pressure full diameter core mud pollution evaluation |
| CN104280326A (en) * | 2014-09-28 | 2015-01-14 | 中国石油大学(华东) | Measuring device for determining invasion depth of mud filtrate |
-
2015
- 2015-02-06 CN CN201510065177.4A patent/CN104695945A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2119496U (en) * | 1992-02-25 | 1992-10-21 | 大庆石油管理局钻井研究所 | Circulation type filtrate loss instrument for drilling fluid |
| US20100230108A1 (en) * | 2003-09-17 | 2010-09-16 | Halliburton Energy Services, Inc. | Methods of Degrading Subterranean Filter Cakes |
| CN201292847Y (en) * | 2008-11-28 | 2009-08-19 | 中国地质大学（武汉） | High-fidelity well drilling strata dropping simulating device |
| US20100169020A1 (en) * | 2008-12-29 | 2010-07-01 | Yuqiang Niu | Method and apparatus for real time oil based mud contamination monitoring |
| CN101775983A (en) * | 2010-02-09 | 2010-07-14 | 康志勇 | Sandstone reservoir water layer resistivity-based stratum data processing method |
| CN103015996A (en) * | 2012-12-31 | 2013-04-03 | 中国石油大学(华东) | Method for predicting high steep structure stratum leakage velocity before drilling |
| CN103233725A (en) * | 2013-04-17 | 2013-08-07 | 西南石油大学 | Device and method for determining high temperature and high pressure full diameter core mud pollution evaluation |
| CN104280326A (en) * | 2014-09-28 | 2015-01-14 | 中国石油大学(华东) | Measuring device for determining invasion depth of mud filtrate |
Non-Patent Citations (2)
| Title |
|---|
| 周福建 等: "用现场资料预测钻井液损害储层深度", 《钻井液与完井液》 * |
| 张国东 等: "钻井液完井液侵入半径预测新模型", 《辽宁化工》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093299A (en) * | 2016-06-02 | 2016-11-09 | 西南石油大学 | A kind of tight gas reservoir drilling fluid damage evaluation experimental technique |
| CN106153518A (en) * | 2016-06-22 | 2016-11-23 | 西南石油大学 | Compact sandstone gas reservoir fracturing liquid damage experimental evaluation method |
| CN106153518B (en) * | 2016-06-22 | 2018-08-14 | 西南石油大学 | Compact sandstone gas reservoir fracturing liquid damage experimental evaluation method |
| CN107965310A (en) * | 2018-01-11 | 2018-04-27 | 中国海洋石油集团有限公司 | A kind of mud filtrate invasion depth test device and test method |
| CN109989743A (en) * | 2019-05-06 | 2019-07-09 | 中海油田服务股份有限公司 | A kind of method and system of determining mud filtrate depth of invasion |
| CN111967162A (en) * | 2020-08-20 | 2020-11-20 | 西南石油大学 | Compact sandstone gas reservoir drilling fluid reservoir damage evaluation method |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Applicant after: China Offshore Oil Group Co., Ltd. Applicant after: China Oilfield Services Limited Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Applicant before: China National Offshore Oil Corporation Applicant before: China Oilfield Services Limited |
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Application publication date: 20150610 |