CN105019875B - Human-cutting high slope interleaving agent evaluation method - Google Patents
Human-cutting high slope interleaving agent evaluation method Download PDFInfo
- Publication number
- CN105019875B CN105019875B CN201410150678.8A CN201410150678A CN105019875B CN 105019875 B CN105019875 B CN 105019875B CN 201410150678 A CN201410150678 A CN 201410150678A CN 105019875 B CN105019875 B CN 105019875B
- Authority
- CN
- China
- Prior art keywords
- interleaving agent
- fracturing fluid
- msub
- human
- evaluation method
- 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.)
- Active
Links
Landscapes
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a kind of human-cutting high slope interleaving agent evaluation method, this method includes：Determine the physical characteristic of the interleaving agent, which includes the compatibility with fracturing fluid；In the case where the compatibility for determining the interleaving agent and the fracturing fluid is good, floating/subsidence velocity of the interleaving agent in the fracturing fluid is detected；Determine that intensity is blocked on the stratum of the interleaving agent；And output evaluation result.Pass through above-mentioned technical proposal, can be to interleaving agent synthesis to be evaluated carries out physical characteristic evaluation, intensity evaluation is evaluated and blocked to floating/subsidence velocity, so as to carry out effective evaluation to interleaving agent, and evaluation method considers the application environment on stratum, therefore the result evaluated can directly apply to scene.
Description
Technical field
The present invention relates to the technical field of the production fluid from well, and in particular, to a kind of human-cutting high slope interleaving agent evaluation
Method.
Background technology
Marine pressure break horizontal well control seam high-tech is necessary technology when being developed for marine edge-bottom water gas reservoir, should
Technology is divided into following several types：Human-cutting high slope control seam high-tech, become displacement control seam high-tech, cold water hydraulic fracturing control seam
High-tech.Wherein, the basic principle of human-cutting high slope control seam high-tech be by floating agent and sinking agent at the top in crack and
Manual shielding layer is formed on bottom, increases the impedance of crack tip, prevents the Fluid pressure in crack from propagating up and down, then
Control critical eigenvalue further extends in height.
Terminating impedance value is to influence the key element of seam high growth up and down in crack.Terminating impedance value can pass through manufacture up and down in crack
The method for being manually isolated layer changes.After having noted prepad fluid and having produced the crack of certain scale, before mulling liquid is injected, with carrying
Liquid carries interleaving agent（Floating agent and sinking agent）Into crack.Floating agent moves to the top in crack under buoyancy, sinks
Agent is deposited in the bottom in crack under the effect of gravity, so as to form a hyposmosis or not permeable respectively in the top and bottom in crack
Saturating human-cutting high slope.Such human-cutting high slope limits load fluid pressure and is transmitted to top and to lower part, so as to reach change
The distribution of vertical upper pressure in seam, reduces stream pressure and the difference of crustal stress in being stitched in interval up and down, also increases interlayer up and down
Ground stress deviation between oil-producing formation, thus controls and stitches high increase.
Human-cutting high slope controls the control seam high effect of seam high-tech the most obvious from the point of view of implementing the experience of pressure break according to land, and
Human-cutting high slope controls evaluation of the seam high-tech most important part for control seam high isolation agent, but commenting of being obtained of existing assessment technique
Valency result is all not directly applicable scene, and how to solve the problems, such as this is that can marine pressure break horizontal well control seam high-tech obtain
It is successfully crucial.
The content of the invention
The object of the present invention is to provide a kind of method, this method can carry out effective evaluation to interleaving agent, and evaluate knot
Fruit can directly apply to scene.
To achieve these goals, the present invention provides a kind of human-cutting high slope interleaving agent evaluation method, and this method includes：Determine
The physical characteristic of the interleaving agent, the physical characteristic include the compatibility with fracturing fluid；In the definite interleaving agent and the pressure
Split liquid compatibility it is good in the case of, detect floating/subsidence velocity of the interleaving agent in the fracturing fluid；Determine described
Block intensity in the stratum of interleaving agent；And output evaluation result.
Further, the floating/subsidence velocity of the interleaving agent is average speed, wherein, by record it is described every
The average speed is calculated from the time of particle floating/sinking a distance in the fracturing fluid of agent.
Further, intensity is blocked on the stratum for determining the interleaving agent includes：The fracturing fluid is set to flow through by described
The interlayer of interleaving agent composition；And determine that intensity δ is blocked on the stratum of the interleaving agent by below equation2：
Wherein, δ1Intensity, V are blocked for the interleaving agent under experiment condition1For the stream of the fracturing fluid under experiment condition
Speed, μ1The viscosity after the interleaving agent, V are flowed through for the fracturing fluid under experiment condition2For the stream of the fracturing fluid under formation condition
Body flow velocity, and μ2For the viscosity after the excessively described interleaving agent of formation condition fracturing liquid stream.
Further, this method further includes：Detect described in pressure difference and measurement that the fracturing fluid is flowed through before and after the interlayer
The thickness of interlayer；And block intensity δ by what below equation determined the interleaving agent under experiment condition1：
δ1=Δ P/L,
Wherein, Δ P is that the fracturing fluid flows through pressure difference before and after the interlayer, and the thickness that L is the interlayer.
Further, the formation condition is simulated by heating and pressurizeing to the experiment condition.
Further, the physical characteristic of the interleaving agent further includes at least one of person：The mesh number of the interleaving agent, body
Density and real density.
Further, the fracturing fluid is the base fluid configured by guar gum and water.
Further, the base fluid concentration is at least one of person：0.1%th, 0.15%, 0.2%, 0.25% and 0.3%.
Through the above technical solutions, physical characteristic evaluation, floating/lower settling velocity can be carried out to interleaving agent synthesis to be evaluated
Intensity evaluation is evaluated and blocked to degree, so that effective evaluation is carried out to interleaving agent, and evaluation method considers the application on stratum
Environment, therefore the result evaluated can directly apply to scene.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Attached drawing is for providing a further understanding of the present invention, and a part for constitution instruction, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is a kind of human-cutting high slope interleaving agent evaluation method flow chart of embodiment according to the present invention；
Fig. 2 be four kinds of interleaving agents of example embodiment according to the present invention in the fracturing fluid of different guar gum concentration it is heavy/
Floating speed schematic diagram；And
Fig. 3 is the apparatus structure schematic diagram for implementing human-cutting high slope interleaving agent evaluation method provided by the invention.
Embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing.It should be appreciated that this place is retouched
The embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
Fig. 1 is a kind of human-cutting high slope interleaving agent evaluation method flow chart of embodiment according to the present invention.As shown in Figure 1,
The human-cutting high slope interleaving agent evaluation method that embodiment of the present invention provides, including：S101, determines that the physics of the interleaving agent is special
Property, which includes the compatibility with fracturing fluid；S102, it is good in the compatibility for determining the interleaving agent and the fracturing fluid
In the case of good, floating/subsidence velocity of the interleaving agent in the fracturing fluid is detected；S103, determines the interleaving agent
Block intensity in stratum；And S104, export evaluation result.Through the above technical solutions, interleaving agent to be evaluated can be integrated
Carry out physical characteristic evaluation, floating/subsidence velocity evaluation and block intensity evaluation, so that effective evaluation is carried out to interleaving agent,
And evaluation method considers the application environment on stratum（Temperature and pressure）, therefore the result evaluated can directly apply to scene.
In embodiments, the fracturing fluid used in evaluation method according to the present invention can be to be configured by guar gum and water
Base fluid.For example, guar gum base fluid concentration can be at least one of person：0.1%th, 0.15%, 0.2%, 0.25% and 0.3%.Pass through
Floating/subsidence velocity of interleaving agent to be measured is detected in the guar gum base fluid of various concentrations, can verify that the comprehensive performance of interleaving agent
And applicability.
In evaluation procedure progress, after certain density interleaving agent adds base fluid, the most particle meeting of interleaving agent
Container bottom or liquid level are deposited or floated up to fast speed.And since the particle diameter of every kind of interleaving agent is there may be difference, cause
Sink between the particle of single interleaving agent or ascent rate difference can be very big.And be possible to occur between particle unite sinking or
Rising phenomenon, so as to accelerate sinking or the ascent rate of interleaving agent.These situations are brought to the measurement of interleaving agent float-and-sink rate
Difficulty.Therefore, in a preferred embodiment, floating/subsidence velocity of interleaving agent can be average speed, wherein it is possible to
The time of particle floating/sinking a distance in the fracturing fluid by recording the interleaving agent is average fast to calculate this
Degree.Spent total time is moved a certain distance by recording most of particles, asks for average speed, though the average speed cannot
The sedimentation of accurate reaction interleaving agent or floating rule, but can be referred to as one, can be from macroscopically characterizing different interleaving agents
Sinking or ascent rate.
The principle of the present invention is further illustrated below by a specific embodiment.
In embodiments, using human-cutting high slope interleaving agent evaluation method provided by the invention to following four interleaving agent into
Row evaluation, wherein, in floating agent：S1 is the floating agent of certain oil field production, and S2 is the hollow glass micropearl of certain company production；Sink
In agent：X1 is 80/100 mesh haydite, and X2 is 100/120 mesh haydite.
It is possible, firstly, to made with the base fluid that guar gum and clear water configuration concentration are respectively 0.1%, 0.15%, 0.2%, 0.25%, 0.3%
For fracturing fluid.Capillary viscosimeter can be used to measure the viscosity of each guar gum concentration base fluid.The guar gum base fluid of various concentrations is corresponding
Viscosity is as shown in table 1.
Table 1
Physical method can be utilized, be determined by experiment the physical characteristic of above-mentioned interleaving agent, i.e., volume density, real density, with
And their compatibilities under room temperature and formation temperature conditions with fracturing fluid, measurement result are as shown in table 2.
Table 2
| Title | Mesh number | Volume density g/cm3 | Real density g/cm3 | With fracturing fluid compatibility |
| S1 | 5~180 | 0.70 | 0.90 | It is good |
| S2 | 16~50 | 0.52 | 0.83 | It is good |
| X1 | 80/100 | 1.75 | 2.65 | It is good |
| X2 | 100/120 | 1.85 | 2.81 | It is good |
For the interleaving agent good with the compatibility of fracturing fluid, can continue to detect its floating/sinking in fracturing fluid
Speed.For that then cannot can eliminate or be evaluated as not can be selected with the interleaving agent of fracturing fluid excellent fit 5.Detection interleaving agent exists
Floating/subsidence velocity in fracturing fluid can be carried out by way of experiment.Experiment can select common instrument, for example, electric
Sub- balance, glass bar, magnetic stirring apparatus, beaker, graduated cylinder, stopwatch etc..It can be detected in the following way：To filling guar gum
A certain concentration is added inside the graduated cylinder of base fluid（Sand ratio）Heavy formula/floating diversion agent（That is interleaving agent）, stirred evenly with glass bar
Afterwards, the time sunk/floated needed for certain distance with stopwatch record interleaving agent, sinking/ascent rate is calculated.Isolation can be changed
Agent concentration repeats the above process, and the concentration of change guar gum base fluid repeats the above process.It can be drawn using the data measured
Floating/subsidence velocity and guar gum concentration and interleaving agent concentration relationship curve are as shown in Figure 2.
From figure 2 it can be seen that interleaving agent sinking/ascent rate is reduced with the increase of guar gum base fluid concentration, its
In, the subsidence velocity of sinking agent X1 is better than X2, and the ascent rate of floating agent S1 is better than S2.It is exemplified below and how determines difference
Interleaving agent blocks intensity.
Fig. 3 is the apparatus structure schematic diagram for implementing human-cutting high slope interleaving agent evaluation method provided by the invention.Fig. 3 is shown
The core flow test instrument that can be used is detected to the intensity of blocking of interleaving agent, can be included：Constant flow pump 1, intermediate receptacle
2nd, pressure gauge 3, confined pressure pump 4, metering device 5, confined pressure pipe 8 and the hollow cylinder container 6 for being provided at both ends with steel column plug 7.It is above-mentioned
Element is connected by pipeline, and valve is provided with pipeline.Interleaving agent to be measured wherein is placed in hollow cylinder container 6, the open circles
Column container 6 and the contact surface of steel column plug 7 can be provided with strainer.Working status by controlling confined pressure pump 4 can be with analog isolation
The state of agent, for example, corresponding to the natural packing state of interleaving agent when being not added with confined pressure, the hollow cylindrical chamber 6 when applying confined pressure
Middle interleaving agent rock core length L can reduce.Can be to pipeline, steel column and strainer under the conditions of same traffic by pressure gauge 3
Pressure difference measures.
In embodiments, can utilize device four kinds of interleaving agents of detection shown in Fig. 3 blocks intensity, by detecting
Fracturing fluid is stated to flow through the pressure difference before and after interleaving agent interlayer and measure the thickness of the interlayer；And pass through below equation（1）Determine
The interleaving agent blocks intensity δ under experiment condition1：
δ1=Δ P/L（1）
Wherein, Δ P is that the fracturing fluid flows through pressure difference before and after the interlayer, and the thickness that L is the interlayer（Or section
It is long）.It is as shown in table 3 that what four kinds of interleaving agents measured under experimental conditions blocks intensity.
Table 3
Wherein, independent test line and strainer additional pressure drop, can obtain additional pressure drop, for example, 1.2KPa.In table
Blocking in intensity for 3 calculating, subtracts the pressure drop that pipeline and strainer add.
According to Darcy's law（2）：
Wherein, Q is the flow under given pressure difference, and L is experiment interleaving agent rock core length, and μ is fracturing fluid viscosity, and Δ p is real
Pressure difference is tested, and A is interleaving agent rock core cross-sectional area.
Measured above by experiment and block intensity under experiment condition.Can be to the screening of interleaving agent under experiment condition
Gear intensity, which be converted under formation condition, blocks intensity.Utilize Darcy formula, it is assumed that 1m interleaving agents produce in stratum
Pressure drop is δ 2, and it is δ 1 that intensity is blocked under experiment condition, then can obtain following equation（3）：
Wherein, δ1Intensity, V are blocked for interleaving agent under experiment condition1For the flow velocity of experiment condition fracturing liquid, μ1For reality
Fracturing fluid flows through the viscosity after interleaving agent, V under the conditions of testing2For the fluid flow rate of formation condition fracturing liquid, and μ2For stratum bar
Part fracturing liquid stream crosses the viscosity after interleaving agent.In embodiments, can be by being heated to experiment condition（Such as to open circles
Column container 6 heats）And pressurization（Such as to hollow cylinder container 6 plus confined pressure）To simulate to obtain formation condition.
Herein, slabbing seam morphological Simulation result is approximately assumed over the ground.According to professional software（Such as Fracpro-PT
Software）To the analog result of Different Strata condition, it is 42m that crack can be reduced to major semiaxis, the ellipse that semi-minor axis is about 20m
Model, and assume that fluid is equal along crack periphery percolation flow velocity in seam, finally combines the fluid efficiency that scene provides, can estimate
The percolation flow velocity of fluid in stratum.
Calculating based on the model hypothesis, when pump note discharge capacity is 3m3During/min, edge of crack liquid flow velocity in stratum
V2=98.3cm/min, flow velocity V during experiment test1=1.132cm/min, experiment condition fracturing liquid stream cross the viscosity after interleaving agent
μ1=3.04mPa·s（It can be taken as 3mPas）, formation condition fracturing liquid can be obtained by heating and pressurizeing to experiment condition
It is about 2mPas by the filtrate viscosity after interleaving agent, so blocking intensity in stratum the multiple of intensity being blocked with ground and be about
52 times, can obtain interleaving agent under formation condition accordingly blocks intensity, is shown in Table 4.
Table 4
Integrated comparative sinking speed understands that floating agent S1 and sinking agent X2 positive effects are better than other two kinds with intensity is blocked
Interleaving agent（It is big to block intensity, isolation effect is good, and interleaving agent is more excellent）, so as to obtain the isolation for being adapted to onsite application by evaluation
Agent.Then, the dosage of interleaving agent can further combined with the Fracturing design software analog result of specialty, be calculated.
The preferred embodiment of the present invention is described in detail above in association with attached drawing, still, the present invention is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the present invention, a variety of letters can be carried out to technical scheme
Monotropic type, for example, interleaving agent interlayer or interleaving agent rock core, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (7)
1. a kind of human-cutting high slope interleaving agent evaluation method, it is characterised in that this method includes：
Determine the physical characteristic of the interleaving agent, which includes the compatibility with fracturing fluid；
In the case where the compatibility for determining the interleaving agent and the fracturing fluid is good, the interleaving agent is detected in the pressure break
Floating or subsidence velocity in liquid；
Determine that intensity is blocked on the stratum of the interleaving agent, including：The fracturing fluid is set to flow through the interlayer being made of the interleaving agent；
And determine that intensity δ is blocked on the stratum of the interleaving agent by below equation2：
<mrow>
<mfrac>
<msub>
<mi>&delta;</mi>
<mn>2</mn>
</msub>
<msub>
<mi>&delta;</mi>
<mn>1</mn>
</msub>
</mfrac>
<mo>=</mo>
<mfrac>
<msub>
<mi>V</mi>
<mn>2</mn>
</msub>
<msub>
<mi>V</mi>
<mn>1</mn>
</msub>
</mfrac>
<mo>&times;</mo>
<mfrac>
<msub>
<mi>&mu;</mi>
<mn>2</mn>
</msub>
<msub>
<mi>&mu;</mi>
<mn>1</mn>
</msub>
</mfrac>
<mo>,</mo>
</mrow>
Wherein, δ1Intensity, V are blocked for the interleaving agent under experiment condition1For the flow velocity of the fracturing fluid under experiment condition, μ1
The viscosity after the interleaving agent, V are flowed through for the fracturing fluid under experiment condition2For the fluid stream of the fracturing fluid under formation condition
Speed, and μ2The viscosity after the interleaving agent is flowed through for the fracturing fluid under formation condition；And
Export evaluation result.
2. human-cutting high slope interleaving agent evaluation method according to claim 1, it is characterised in that the interleaving agent it is described on
Floating or subsidence velocity is average speed, wherein, float or sink in the fracturing fluid by the particle for recording the interleaving agent
The time of a distance calculates the average speed.
3. human-cutting high slope interleaving agent evaluation method according to claim 1, it is characterised in that this method further includes：
The fracturing fluid is detected to flow through the pressure difference before and after the interlayer and measure the thickness of the interlayer；And
Intensity δ is blocked by what below equation determined the interleaving agent under experiment condition1：
δ1=Δ P/L,
Wherein, Δ P is that the fracturing fluid flows through pressure difference before and after the interlayer, and the thickness that L is the interlayer.
4. human-cutting high slope interleaving agent evaluation method according to claim 1, it is characterised in that by the experiment condition
Heat and pressurize to simulate the formation condition.
5. human-cutting high slope interleaving agent evaluation method according to claim 1, it is characterised in that the physics of the interleaving agent is special
Property further includes at least one of person：Mesh number, volume density and the real density of the interleaving agent.
6. human-cutting high slope interleaving agent evaluation method according to claim 1, it is characterised in that the fracturing fluid is to pass through melon
Glue and the base fluid of water configuration.
7. human-cutting high slope interleaving agent evaluation method according to claim 6, it is characterised in that the base fluid concentration is following
At least one：0.1%th, 0.15%, 0.2%, 0.25% and 0.3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410150678.8A CN105019875B (en) | 2014-04-15 | 2014-04-15 | Human-cutting high slope interleaving agent evaluation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410150678.8A CN105019875B (en) | 2014-04-15 | 2014-04-15 | Human-cutting high slope interleaving agent evaluation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105019875A CN105019875A (en) | 2015-11-04 |
| CN105019875B true CN105019875B (en) | 2018-05-01 |
Family
ID=54410118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410150678.8A Active CN105019875B (en) | 2014-04-15 | 2014-04-15 | Human-cutting high slope interleaving agent evaluation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105019875B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236906B (en) * | 2018-11-29 | 2022-06-10 | 中国石油化工股份有限公司 | Method for improving fracture complexity through normal-pressure or deep shale gas main fracture deep plugging |
| CN110244079B (en) * | 2019-07-18 | 2019-12-20 | 西南石油大学 | Testing method for floating rate of seam-control high-floating agent |
| CN112067446A (en) * | 2020-08-10 | 2020-12-11 | 中国石油大学(华东) | Device and method for testing pressure blocking effect of seam height control agent |
| CN112160735B (en) * | 2020-09-09 | 2022-09-06 | 中石化石油工程技术服务有限公司 | Method for determining migration speed of single-particle sinking agent |
| CN116380752B (en) * | 2023-06-05 | 2023-08-11 | 成都理工大学 | Evaluation method for shielding effect of degradable sinking agent artificial interlayer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606126A (en) * | 2012-03-27 | 2012-07-25 | 东方宝麟科技发展(北京)有限公司 | Non-planar network fracturing control method for fractured reservoir |
| CN103089224A (en) * | 2011-10-28 | 2013-05-08 | 中国石油化工股份有限公司 | Fracturing method for comprehensively controlling fracture height |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2324810C2 (en) * | 2006-05-31 | 2008-05-20 | Шлюмберже Текнолоджи Б.В. | Method for determining dimensions of formation hydraulic fracture |
| US9222337B2 (en) * | 2011-01-20 | 2015-12-29 | Commonwealth Scientific And Industrial Research Organisation | Hydraulic fracturing |
-
2014
- 2014-04-15 CN CN201410150678.8A patent/CN105019875B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089224A (en) * | 2011-10-28 | 2013-05-08 | 中国石油化工股份有限公司 | Fracturing method for comprehensively controlling fracture height |
| CN102606126A (en) * | 2012-03-27 | 2012-07-25 | 东方宝麟科技发展(北京)有限公司 | Non-planar network fracturing control method for fractured reservoir |
Non-Patent Citations (2)
| Title |
|---|
| 上浮剂隔层控制裂缝高度延伸实验研究;胡永全等;《西南石油大学学报(自然科学版)》;20100430;第32卷(第02期);第79-81页 * |
| 人工控制压裂缝高技术现状与研究要点;周文高等;《天然气勘探与开发》;20060331;第29卷(第01期);第68-73页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105019875A (en) | 2015-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Meng et al. | A critical review on fundamental mechanisms of spontaneous imbibition and the impact of boundary condition, fluid viscosity and wettability | |
| CN105019875B (en) | Human-cutting high slope interleaving agent evaluation method | |
| CN103498669B (en) | Quantitative determination method for interlayer channeling flow of heterogeneous core model | |
| CN104675394B (en) | Heterogeneous bottom-water reservoir three-dimensional physical simulation experimental provision and saturation degree determine method | |
| CN104389594B (en) | Shale gas well deliverability method of evaluation and forecast | |
| CN104847340B (en) | A kind of logging in water flooded layer quantitative evaluation method | |
| CN104564043B (en) | A kind of diversion chamber of gas test compact reservoir seam net flow conductivity and its method of work | |
| CN107038268B (en) | Method for determining water flooding wave sum coefficient of heterogeneous reservoir five-point well pattern | |
| CN102914494B (en) | Device for measuring dynamic leak-off of foam fracturing fluid and working method thereof | |
| CN103452543B (en) | Method for manufacturing fractured horizontal well pattern model and fractured horizontal well pattern model | |
| CN103674593B (en) | A kind of device and method for simulating the flood pot test of low permeability reservoir pressure break straight well | |
| CN107063967A (en) | A kind of Bao He ∕ Unsaturated Hydraulic Conductivity Forecasting Methodologies based on microscopic void passage | |
| CN103710011B (en) | Modified polyacrylamide profile control system as well as preparation and use method thereof | |
| RU2016134036A (en) | INDICES OF STRUCTURAL DIFFERENCE OF UPPER ZONES OF FILLING THE ORDOVICIAN Limestone AND METHOD FOR DETERMINING THEM | |
| CN107806339A (en) | A kind of fracturing fracture flow conductivity experimental method | |
| CN205538580U (en) | Indoor survey device of fissuted medium system infiltration tensor | |
| CN204327083U (en) | A kind of diversion chamber of gas test compact reservoir seam net flow conductivity | |
| CN105298488A (en) | Method for testing flow conductivity in discontinuous filling mode | |
| CN102704901A (en) | Apparatus and method for multipoint pressure measuring long-core deep profile control experiment | |
| Guo et al. | Effect of stress build-up around standalone screens on the screen performance in SAGD wells | |
| CN108828190A (en) | A kind of results of fracture simulation method of Fractured tight sand oil-gas reservoir | |
| CN110879196B (en) | Oil-water phase permeability testing method for oil-rich condensate gas reservoir | |
| US10846445B2 (en) | Method of waste distribution and formation pressure profile determination | |
| CN114088880A (en) | Quantitative evaluation method for testing plugging property of drilling fluid | |
| CN107366529A (en) | Heterogeneous water-drive pool Dimensionless liquid production index curve characterizing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170217 Address after: 200335 Changning District, Tong Tong Road, No. 388, CNOOC building, Shanghai Applicant after: Shanghai Branch of China National Offshore Oil Corporation Applicant after: CNOOC Energy Technology Co., Ltd. Applicant after: China University of Petroleum (Beijing) Address before: 100010 Beijing City, Dongcheng District Chaoyangmen No. 25 North Street CNOOC building Applicant before: China National Offshore Oil Corporation Applicant before: Shanghai Branch of China National Offshore Oil Corporation Applicant before: CNOOC Energy Technology & Sevices-Supervision &Technology Co. Applicant before: China University of Petroleum (Beijing) |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |