CN205786538U - Hypertonic stress drill in fluid protective capability field evaluation device - Google Patents
Hypertonic stress drill in fluid protective capability field evaluation device Download PDFInfo
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- CN205786538U CN205786538U CN201620491205.9U CN201620491205U CN205786538U CN 205786538 U CN205786538 U CN 205786538U CN 201620491205 U CN201620491205 U CN 201620491205U CN 205786538 U CN205786538 U CN 205786538U
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Abstract
This utility model relates to oil and gas industry hypertonic stress drill in fluid protective capability field evaluation device, main by cylinder, plunger, motor, moving blade, sealing shroud, standard rock core, fluid entering channel, high-pressure nitrogen bottle, air relief valve, connect pipeline, rock sample steel base, fluid issuing switchs, computer and gripper brackets composition, clamper is disposed vertically, in drilling fluid damage and permeability evaluation procedure, fluid pressure is rock core confined pressure, in fluid space, drill in fluid is quantitative, standard core column is prepared by mining site interval of interest rock sample of appearing, utilize constant displacement pressure that reservoir true core is carried out the dynamic damage evaluation test, by pressure parameter over time in gas pressure attenuation process in fluid space, achieve drilling fluid damage perm-plug method extent of damage Fast Evaluation.
Description
Technical field
This utility model relates to oil and gas industry hypertonic stress drill in fluid protective capability field evaluation dress
Putting, this equipment uses miniaturization, modular unit, it is possible to easy, Fast Evaluation scene drill in fluid reservoir protection performance,
Accurately measure the pass of the drill in fluid reservoir protection abilities such as drill in fluid filter cake thickness, filter loss and permeability impairment degree
Bond parameter.Can in time, the appraisal drilling completion fluid system protective capability to reservoir fast and accurately, timely for situ of drilling well
Optimize drill in fluid reservoir protection ability performance and reliable basis is provided.This equipment belongs to oil and gas exploration and development process
In, for the experimental facilities in terms of reservoir protection.
Background technology
Along with whole world natural gas exploration and development, the successful exploration of especially a large amount of marine hypertonic stress, drilling fluid is to oil
The protective capability of gas reservoir is increasingly paid close attention to by people.Hypertonic stress permeability is high, and pore throat diameter is big, and clay mineral is grown,
Potential formation damage factor is strong.Drilling fluid is as opening the working fluid of reservoir, and solid concentration is high, easily damages reservoir.If
Drill in fluid filter cake performance is the best, and reservoir protection performance is bad, easily induces serious formation damage, may cause oil-gas Layer
Find not in time, oil and gas zone evaluation mistake, the serious curtailment gas reservoir exploitation life-span, increase investment risk, affect oil-gas field development warp
Ji benefit.Especially when oil price low level runs, good reservoir protection measure contributes to reducing cost of exploration & development.At oil gas
Hide in wellbore construction operation, it is considered to formation condition and requirement of engineering, in order to meet safe and efficient creeping into, in mining site work progress
Need constantly to optimize drilling completion formula of liquid.But it is primarily upon drilling fluid rheology, to drilling fluid during mining site construction at present
Reservoir protection merit rating ignored.If therefore, carrying out drill in fluid formation damage evaluating tool in mining site in time
Significant.
At present, the main conventional drilling completion fluid assessment technique that uses of drill in fluid formation damage evaluating experiment, or use
Grant number is disclosed " high-temperature high-pressure multifunctional horizontal well damage appraisement " experimental provision of CN1014820098 Chinese patent, sums up
Existing drill in fluid damage appraisement pertinent literature and patent, and combine mining site situation, have the disadvantage that
Drill in fluid evaluating apparatus is laboratory experiment evaluating apparatus, and experimental facilities is various, volume is relatively big, including rock core
Clamper, kettle of heating, intermediate receptacle, confined pressure pump, six-way valve and gas cylinder etc., and complex operation, indoor experimental apparatus is grasped
Make complexity, need professional to operate, high to site operation personnel requirement, therefore it is not suitable for using at mining site.Work as drilling well
When platform and drilling fluid evaluation experimental room are apart from each other, it is impossible to the drilling fluid reservoir protection ability realizing that scene is adjusted carry out and
Time assay, if the drilling fluid after adjusting at any time is transported back after laboratory is evaluated after deciding whether to use again and adjusting
Drill in fluid, will significantly extend drilling period.To sum up thinking, existing drill in fluid formation damage evaluating device is difficult to
Mining site uses, it is impossible to carry out drill in fluid reservoir protection merit rating timely, quick at mining site.
Summary of the invention
This utility model purpose is to provide a kind of simple, quick, accurate evaluation gas reservoir high temperature height used for mining site
Pressure drilling fluid damage evaluating apparatus, it have be easily portable, simple to operate, the testing time is short, measuring accuracy high, it is possible to
By standard core column module and pressure sensor module, simulate dissimilar reservoir geology and engineering characteristics.By monitoring rock
The gas pressure attenuation process in inverse drilling fluid damage direction, the Fast Evaluation drill in fluid extent of damage before and after heart infringement.Overcome
Conventional drill in fluid the dynamic damage evaluating apparatus is big, operation complexity, the problem being difficult to use at mining site, it is achieved mining site bar
Drilling fluid the dynamic damage evaluation is carried out in time, fast and accurately under part.
For reaching above technical purpose, this utility model provides techniques below scheme.
Hypertonic stress drill in fluid protective capability field evaluation device specifically includes that hypertonic stress drill in fluid
Protective capability field evaluation device is mainly entered logical by cylinder, plunger, motor, moving blade, sealing shroud, standard rock core, fluid
Road, high-pressure nitrogen bottle, air relief valve, connection pipeline, rock sample steel base, fluid issuing switch, computer and gripper brackets composition.
Standard rock core is wrapped up by sealing shroud, and sealing shroud is combined by soft encapsulant and thermoplastic set, sealing shroud bottom and rock sample steel
Base is closely coupled, is threaded connection between rock sample steel base and cylinder, has fluid space, cylinder between cylinder and sealing shroud
Top is plunger, and plunger perforate can transmit pressure and fluid, and fluid injects fluid space by fluid intake switch, and fluid enters
Mouth switch is connected by connecting pipeline high-pressure nitrogen bottle, and the pressure of fluid space can be monitored by pressure transducer, standard
High-pressure nitrogen bottle working fluid in fluid space provides displacement pressure, and displacement pressure is adjusted by air relief valve, motor belt motor
Drill in fluid is stirred by dynamic moving blade, simulates drill in fluid flow process, pressure transducer and motor speed and leads to
Crossing computer record and control, cylinder is supported by clamper base, during drilling completion liquid damage, in fluid space
Add certain volume drill in fluid, regulate suitable displacement pressure reduction, open fluid issuing switch record drill in fluid filter loss,
After leak-off completes, fluid space is rinsed well, standard rock core is taken out from sealing shroud, at drill in fluid filter cake
After reason, standard rock core it is inverted and is sealed with rock sample steel base by new sealing shroud, again by rock sample steel base and cylinder
After connection, in fluid space, inject certain pressure nitrogen and close fluid intake switch, after pressure stability in fluid space,
Open fluid flow out switch, by pressure transducer record decline of pressure data and on the main interface of program draw displacement decay song
Line.All devices are modular unit.
This utility model, compared with existing experimental provision, has the advantages that
This utility model principle is reliable, simple to operate, has filled up mining site drill in fluid the dynamic damage evaluating apparatus
Blank.Achieve drill in fluid reservoir protection merit rating equipment miniaturization, for field evaluation drill in fluid protective capability
Evaluate just-in-time, timelyization and summary provide condition, it is achieved that mining site with drill in fluid reservoir protection performance and
Time follow the tracks of, the on-the-spot drill in fluid reservoir protection performance that constantly adjusts can be solved and evaluate not enough problem.
Accompanying drawing explanation
Fig. 1 is this utility model hypertonic stress drill in fluid protective capability field evaluation apparatus structure schematic diagram.
Fig. 2 is the cross sectional representation that this utility model seals rock core.
In figure: 1. cylinder, 2. plunger, 3. motor, 4. moving blade, 5. sealing shroud, 6. standard rock core, 7. pressure sensing
Device, 8. fluid intake switch, 9. high-pressure nitrogen bottle, 10. air relief valve, 11, fluid space, 12, connect pipeline, 13, at the bottom of rock sample steel
Seat, 14, fluid issuing switch, 15. computers, 16. clamper bases, 17, soft encapsulant, 18, thermoplastic set.
Detailed description of the invention
Below according to accompanying drawing, this utility model is further described.
Referring to Fig. 1 and Fig. 2, drill in fluid damage appraisement system is mainly by cylinder, kettle, plunger, motor, rotation leaf
Sheet, sealing shroud, standard rock core, fluid entering channel, high-pressure nitrogen bottle, air relief valve, connection pipeline, rock sample steel base, fluid go out
Mouth switch, computer and gripper brackets composition.Being wrapped up by sealing shroud 5 of standard rock core 6, sealing shroud 5 is by soft encapsulant
17 and thermoplastic set 18 combine, rubber sleeve 5 bottom is closely coupled with rock sample steel base 13, rock sample steel base 13 and cylinder 1 it
Between be threaded connection, having fluid space 11, cylinder 1 top between cylinder 1 and sealing shroud 5 is plunger 2, and plunger 2 perforate is permissible
Transmission pressure and fluid, fluid is by fluid intake switch 8 injection fluid space 11, and fluid intake switch 8 is by connecting pipeline
12 high-pressure nitrogen bottles 9 are connected, and the pressure of fluid space 11 can be monitored by pressure transducer 7, standard high-voltage nitrogen cylinder 9 to
Working fluid in fluid space 11 provides displacement pressure, and displacement pressure is adjusted by air relief valve 10, and motor 3 drives and rotates leaf
Drill in fluid is stirred by sheet 4, simulates drill in fluid flow process, pressure transducer 7 and motor 3 rotating speed by calculating
Machine 15 records and controls, and cylinder 1 is supported by clamper base 16, during drilling completion liquid damage, to fluid space 11
Inside add certain volume drill in fluid, regulate suitable displacement pressure reduction, open fluid issuing switch 14 record drill in fluid leak-off
Amount, after leak-off completes, rinses well fluid space 11, is taken out by standard rock core 6 from sealing shroud 5, filters drill in fluid
Standard rock core 6 is inverted and is passed through new sealing shroud 5 after processing and seals with rock sample steel base 13, again by rock sample by cake
After steel base 13 is connected with cylinder 1, in fluid space 11, injects certain pressure nitrogen and close fluid intake switch 8, waiting to flow
In body space 11 after pressure stability, open fluid and flow out switch 14, record decline of pressure data and in journey by pressure transducer 7
Displacement attenuation curve is drawn on the main interface of sequence.
Claims (2)
1. hypertonic stress drill in fluid protective capability field evaluation device, mainly by cylinder, plunger, motor, moving blade,
Sealing shroud, standard rock core, fluid entering channel, high-pressure nitrogen bottle, air relief valve, connection pipeline, rock sample steel base, fluid issuing are opened
Pass, computer and gripper brackets composition is characterized in that, standard rock core (6) is wrapped up by sealing shroud (5), and sealing shroud (5) is by soft
Property encapsulant (17) and thermoplastic set (18) combine, and sealing shroud (5) bottom is closely coupled with rock sample steel base (13), rock sample
It is threaded connection between steel base (13) and cylinder (1), between cylinder (1) and sealing shroud (5), has fluid space (11), cylinder
(1) top is plunger (2), and plunger (2) perforate can transmit pressure and fluid, and fluid injects stream by fluid intake switch (8)
Body space (11), fluid intake switch (8) is connected by connecting pipeline (12) high-pressure nitrogen bottle (9), the pressure of fluid space (11)
Power can be passed through pressure transducer (7) and be monitored, and the standard high-voltage nitrogen cylinder (9) working fluid in fluid space (11) provides
Displacement pressure, displacement pressure is adjusted by air relief valve (10), and motor (3) drives moving blade (4) to carry out drill in fluid
Stirring, simulates drill in fluid flow process, pressure transducer (7) and motor (3) rotating speed and carries out record by computer (15)
And control, cylinder (1) is supported by clamper base (16), during drilling completion liquid damage, adds one in fluid space (11)
Determine volume drill in fluid, regulate suitable displacement pressure reduction, open fluid issuing switch (14) record drill in fluid filter loss, filter
After mistake completes, fluid space (11) is rinsed well, standard rock core (6) is taken out from sealing shroud (5), drill in fluid is filtered
Standard rock core (6) is inverted and is passed through new sealing shroud (5) after processing and seals, again with rock sample steel base (13) by cake
After rock sample steel base (13) is connected with cylinder (1), in fluid space (11), injects certain pressure nitrogen and close fluid and enter
Mouth switch (8), after pressure stability in fluid space (11), is opened fluid and flows out switch (14), remembered by pressure transducer (7)
Record decline of pressure data also draw displacement attenuation curve on the main interface of program.
Hypertonic stress drill in fluid protective capability field evaluation device the most according to claim 1, it is characterised in that
All devices are modular unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620491205.9U CN205786538U (en) | 2016-05-26 | 2016-05-26 | Hypertonic stress drill in fluid protective capability field evaluation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620491205.9U CN205786538U (en) | 2016-05-26 | 2016-05-26 | Hypertonic stress drill in fluid protective capability field evaluation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205786538U true CN205786538U (en) | 2016-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620491205.9U Expired - Fee Related CN205786538U (en) | 2016-05-26 | 2016-05-26 | Hypertonic stress drill in fluid protective capability field evaluation device |
Country Status (1)
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| CN (1) | CN205786538U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175108A (en) * | 2020-03-01 | 2020-05-19 | 东北石油大学 | Ultra-low permeability natural core pillar electrode and pressure measuring point arrangement pouring method |
| CN113655082A (en) * | 2021-10-15 | 2021-11-16 | 西南石油大学 | Optimization method for evaluating well-entering fluid of tight shale reservoir |
-
2016
- 2016-05-26 CN CN201620491205.9U patent/CN205786538U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175108A (en) * | 2020-03-01 | 2020-05-19 | 东北石油大学 | Ultra-low permeability natural core pillar electrode and pressure measuring point arrangement pouring method |
| CN113655082A (en) * | 2021-10-15 | 2021-11-16 | 西南石油大学 | Optimization method for evaluating well-entering fluid of tight shale reservoir |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20180526 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |