CN206300872U - The device of fluid loss speed under a kind of new measurement different pressures - Google Patents
The device of fluid loss speed under a kind of new measurement different pressures Download PDFInfo
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- CN206300872U CN206300872U CN201621322329.0U CN201621322329U CN206300872U CN 206300872 U CN206300872 U CN 206300872U CN 201621322329 U CN201621322329 U CN 201621322329U CN 206300872 U CN206300872 U CN 206300872U
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- seal box
- rock core
- fluid loss
- liquid
- balance
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Abstract
The utility model is related to a kind of device of fluid loss speed under the conditions of measurement different pressures, and it is mainly made up of double-legged balance, intermediate seal case (6).The double-legged balance has two bases (1) in left and right, and base bottom footing (2) adjustable-height, two bases are connected by connecting rod (3)；Seal box (6) left side has gas access to switch (7), and liquid inlet switch (8) can be input into different type liquid, form different liquids environment；Seal box top middle portion is core entry (10), and standard rock core is put into case by linking up with (4)；Seal box top right side is equipped with pressure gauge (11) and gas discharge outlet (12), and bottom right side is equipped with liquid outlet (13).Control the amount of gas in seal box to control the pressure in seal box, the quality of rock core, can calculate this kind of liquid at this pressure, the fluid loss rate in specific rock core with reference to rock core parameter in itself in record different time sections.The utility model is easy to use, and cost is relatively low.
Description
Technical field
The utility model is related to a kind of device of liquid fluid loss rate in rock core under the conditions of measurement different pressures, belongs to oil
Gas field development field.
Background technology
By over one hundred year to the exploration and development of " conventional gas and oil ", tellurian conventional oil tolerance has been greatly reduced,
Sight and research object have been invested " unconventionaloil pool " by people, wherein, fine and close oil gas is exactly a critically important research object.
For the exploitation of fine and close oil gas, traditional recovery method can not be exploited effectively, and hydraulic fracturing technology can be to fine and close, hypotonic
Shale gas reservoir extend efficient help.And the leak-off of fracturing fluid can influence the quality of construction, in order to effectively be controlled in construction
Some execution conditions are made, filter loss is reduced, the efficiency of construction of liquid is improved, it is ensured that being smoothed out for construction, just have to be understood that each
Influence of the factor to leak-off, and in drilling process, the leak-off of drilling fluid is also the key factor for considering, its leak-off
The wall building property of drilling fluid and the quality of mud cake are directly influenced, filtration rate is then a key factor for influenceing leak-off.
Current research of the domestic and foreign scholars to leak-off is concentrated mainly in the research of filtration model, mainly there is space dielectric model, crack
Dielectric model and double porosity media model, and obtain corresponding analytic solutions according to corresponding filtration model founding mathematical models.Compare
For, experimentally the Study on Measures to fluid loss rate and improvement leak-off is not also very comprehensively, to come especially by experiment
Solution various factors is less on the experiment that leak-off influences.A kind of this new device for measuring fluid loss speed at various pressures is then
Can realize measuring liquid fluid loss rate at various pressures, in order under different pressures, different leak-off environment, no
The water absorption rate of different rocks only can be conveniently and efficiently measured, also the fluid loss rate of measurable different liquids.Using the device not
Only facilitate feasible, while experimental cost can also be reduced, save experimental period.On the other hand, different types of filter can be directed to
The data measured under the conditions of mistake, with reference to actual conditions, propose the corresponding measure for improving leak-off, further by the device
Feasibility checking is carried out to Improving Measurements.
The content of the invention
The utility model purpose is under different pressures, different leak-off environment, not only can conveniently and efficiently measure
The water absorption rate of different rocks, also the fluid loss rate of measurable different liquids, designs a kind of time saving and energy saving measurement apparatus.
The technical scheme that the utility model is used is：
The device of fluid loss speed under the conditions of the utility model measurement different pressures, mainly by bilateral balance, nitrogen cylinder
(14) constitute.Described is provided with hook (4) positioned at balance mid-stent, and the height for linking up with (4) can be according to actual conditions
Needs are adjusted, and hook (4) connection balance presss from both sides (5) with rock core, and rock core folder (5) is fixed on into hook end, and rock core folder (5) will
Rock core is fixed in seal box (6), and the size of rock core will determine according to the size of the opening on seal box (6) top；Together
When seal box (6) center top core entry (10) place seal one layer of rubbery loop, it is ensured that the sealing in measurement process, i.e.,
Pressure is constant in measurement process, and first entrance of seal box (6) left upper portion is liquid inlet (7), the liquid inlet
(7) it is single admission, liquid is injected into seal box (6) from liquid inlet (7), liquid inlet (7) top is provided with liquid
Whether entry switch (9), liquid inlet switch (9) control liquid switch is opened and allows liquid to enter into seal box, seal box
(6) second entrance of left upper portion is gas access (8), and the gas access (8) is single admission, and can control gas enter
In seal box, the nitrogen cylinder (14) on the left of gas access (8) connection seal box, nitrogen cylinder provides the source of gas, seal box (6)
Top right side is provided with pressure gauge (11), and whether the pressure inside pressure gauge (11) display seal box is stablized with pressure gauge registration
Whether it is gas vent (12), the gas vent on the right side of pressure gauge (11) to weigh in sealing state inside seal box
(12) it is unidirectional outlet, can control gas discharge from seal box, seal box (6) lower right side is liquid outlet (13), should
Liquid outlet (13) is unidirectional outlet, and can control liquid discharge from seal box.
Gas, the type of liquid that good experiment needs are chosen, air and selected gas are not dissolved in the liquid；Press
After bilateral balance, seal box 6 are connected in accompanying drawing 1, after hook 4 is fixed on into the centre of balance rack beam, closing liquid
Entry switch 9, liquid outlet 13 simultaneously closes off gas access 8, gas vent 12；Opening size choosing according to sealing upper box part
Suitable dimension, dry rock core are taken, the shape of rock core is regular as far as possible；The suitable chi of selection of dimension of the rock core by having chosen
Very little rock core folder 5, and rock core folder 5 is fixed on the end of hook 4；Rock core is fixed on rock core folder 5, the height of regulation hook 4
Be put into rock core in seal box 6 by degree；Whether the observation registration of pressure gauge 11 is stablized, it is possible to be repeatedly detected sealing property；Open liquid
Body entry switch 7, switchs selected liquid 7 and is injected into seal box 6, when liquid is totally submerged rock core by liquid inlet
Afterwards, injection is completed；Opening the valve of nitrogen cylinder 14 makes nitrogen enter in seal box, while opening on exhaust outlet discharge seal box 6
The air in portion, it is ensured that the unicity of nitrogen in seal box 6, the amount that control nitrogen enters in seal box 6 can be controlled in seal box 6
The pressure in portion, leak-off can make rock core weight change, and cause to link up with the change of 4 pulling force, show the change of balance reading, i.e.,
The variable quantity of balance reading is equal to the weight changed after leak-off, and the change of balance registration, calculates rock core in record different time
Fluid loss rate under this condition.In order to be able to more accurately measure fluid loss rate of the liquid in rock core under different pressures, should
In identical, reading in the shorter time period, while carrying out the sealing property test of multiple seal box before measuring, measurement is improved
Accuracy.
Brief description of the drawings
Fig. 1 is the apparatus structure schematic diagram of fluid loss speed under measurement different pressures
Fig. 2 is sealing box structure schematic diagram
1- balance bases in figure, 2- bottom foot for balance, 3- balance supports, 4- hooks, 5- rock cores folder, 6- seal boxs, 7- liquid
Entrance, 8- gas accesses, 9- liquid inlets switch, 10- core entries, 11- pressure gauges, 12- gas vents, 13- liquid outlets,
14 nitrogen cylinders.
Specific embodiment
The utility model is described further below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, the utility model be it is a kind of measure different pressures liquid under in rock core fluid loss rate dress
Put, mainly by double-legged balance, seal box 6 is constituted, it is characterised in that：Described is provided with hook (4) positioned at balance mid-stent,
Link up with (4) height can be according to actual conditions the need for be adjusted, to enable rock core to be steadily placed at seal box
(6) in, hook (4) connection balance presss from both sides (5) with rock core, and the size of rock core folder (5) can be chosen according to the size of the rock core chosen,
Rock core folder (5) is fixed on hook (4) end, rock core presss from both sides (5) and rock core is fixed in seal box (6), the size of rock core
To be determined according to the size of the opening on seal box (6) top；Core entry (10) place of seal box (6) center top is close simultaneously
One layer of rubbery loop of envelope, it is ensured that the sealing in measurement process, i.e., pressure is constant in measurement process, seal box (6) left side
First entrance on top is liquid inlet (7), and the liquid inlet (7) is single admission, liquid is injected from liquid inlet (7)
In to seal box (6), liquid inlet (7) top is provided with liquid inlet switch (9), the liquid inlet (9) control liquid switch
Whether opening allows liquid to enter into seal box, and second entrance of left upper portion of seal box (6) is gas access (8), the gas
Body entrance (8) is single admission, and can control gas enter in seal box, the nitrogen on the left of gas access (8) connection seal box
Bottle (14), nitrogen cylinder provides the source of gas, and seal box (6) top right side is provided with pressure gauge (11), pressure gauge (11) display
Whether whether the pressure inside seal box, pressure stablized to weigh inside seal box in sealing state, the right side of pressure gauge (11)
Side is gas vent (12), and the gas vent (12) is unidirectional outlet, and can control gas discharge from seal box, seal box
(6) lower right side is liquid outlet (13), and the liquid outlet (13) is unidirectional outlet, and can control liquid be arranged from seal box
Go out.
Before experiment, gas, the type of liquid that good experiment needs are chosen, it is to be noted that air and selected gas are in choosing
Do not dissolved in the liquid for taking；
According to bilateral balance, seal box 6 is connected in Fig. 1,4 centres for being fixed on balance rack beam will be linked up with, closed
Liquid inlet switch 9, liquid outlet 13 simultaneously closes off gas access 8, gas vent 12；
Opening size according to sealing upper box part chooses suitable dimension, dry rock core, and the shape of rock core will be as far as possible
Rule；
The rock core folder 5 of the selection of dimension suitable dimension according to the rock core chosen, and rock core folder 5 is fixed on hook 4
End；
It is a certain amount of to being injected in seal box after ready rock core is put into seal box 6 and is fixed on rock core folder 5
After gas, the switch of all gateways, including liquid outlet 13, liquid inlet 7,12 mouthful 8 of gas, gas access 8 are closed；
By the registration of pressure gauge 11 whether stable detection sealing property, the gas of injection can form one on the top of seal box
The pressure of individual fixed value, if good seal performance, the readings remained constant of pressure gauge 11, if sealing property is bad, pressure gauge 11
Registration can ceaselessly fluctuate, when there is this kind of situation, further whether each position of seal box sealed and detected,
Take appropriate measures so that seal box reaches sealing state；
Careful sealing property is detected, after the seal request needed for reaching experiment, balance is returned to zero, open liquid inlet switch 7,
The liquid that will be studied lentamente is injected into seal box 6, and after liquid is totally submerged rock core, injection is completed；
Opening the valve of nitrogen cylinder 14 makes nitrogen enter in seal box, nitrogen is excluded seal box 6 while opening exhaust outlet
The air on top, it is ensured that the unicity of nitrogen in seal box 6, control nitrogen is controlled in seal box 6 into the amount in seal box 6
The pressure in portion, leak-off can make rock core weight change, and cause to link up with the change of 4 pulling force, show the change of balance reading, i.e.,
It is the weight of the variable quantity equal to change after rock core leak-off of balance reading, the change of balance registration, meter in record different time sections
Calculate rock core fluid loss rate under this condition.In order to be able to more accurately measure leak-off of the liquid in rock core under different pressures
Speed, should in identical, reading in the shorter time period, while carry out before measuring multiple seal box sealing property test,
Improve the accuracy of measurement.
Claims (5)
1. it is a kind of measure different pressures under the conditions of fluid loss speed device, be mainly made up of double-legged balance, seal box (6),
Double-legged balance is characterised by：The title on both sides seat (1) is coupled together by balance support (3), it is described positioned at balance support (3)
Hook (4) connection balance and rock core folder (5) at middle part, rock core press from both sides (5) and rock core are fixed in seal box (6)；While seal box
(6) opening of center top is at core entry (10), one layer of rubbery loop, seal box will to be sealed in (10) at core entry
(6) first entrance of left upper portion is liquid inlet (7), and liquid inlet top is provided with liquid inlet switch (9), seal box
Second entrance of left upper portion be gas access (8), gas access (8) connect the nitrogen cylinder (14) on the left of seal box (6), close
Joint sealing (6) top right side is provided with pressure gauge (11), is gas vent (12), seal box lower right side on the right side of pressure gauge (11)
It is liquid outlet (13).
2. it is according to claim 1 it is a kind of measure different pressures under the conditions of fluid loss speed device, it is characterised in that：
Hook (4) will be fixed on the middle part of balance support (3) crossbeam, and the pulling force that hook (4) is subject to is changed by the weight change of rock core,
Cause the change of balance registration.
3. it is according to claim 1 it is a kind of measure different pressures under the conditions of fluid loss speed device, it is characterised in that：
Rubbery loop at the top of seal box (6) can ensure the sealing in seal box, reduce measurement error.
4. it is according to claim 1 it is a kind of measure different pressures under the conditions of fluid loss speed device, it is characterised in that：
The amount into the nitrogen of seal box (6) can be controlled positioned at the pressure gauge (11) of seal box (6) right upper portion, that is, controls seal box
Interior pressure.
5. it is according to claim 1 it is a kind of measure different pressures under the conditions of fluid loss speed device, it is characterised in that：
It is capable of achieving to sealing with the liquid outlet (13) for being located at seal box lower right side positioned at the liquid inlet (7) of seal box left upper portion
Case (6) measures fluid loss rate of the different types of liquid in rock core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621322329.0U CN206300872U (en) | 2016-12-05 | 2016-12-05 | The device of fluid loss speed under a kind of new measurement different pressures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621322329.0U CN206300872U (en) | 2016-12-05 | 2016-12-05 | The device of fluid loss speed under a kind of new measurement different pressures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206300872U true CN206300872U (en) | 2017-07-04 |
Family
ID=59212305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621322329.0U Expired - Fee Related CN206300872U (en) | 2016-12-05 | 2016-12-05 | The device of fluid loss speed under a kind of new measurement different pressures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206300872U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195743A (en) * | 2018-03-19 | 2018-06-22 | 中国地质大学（北京） | A kind of shale imbibition measuring device and measuring method |
| CN112525759A (en) * | 2020-11-23 | 2021-03-19 | 中建商品混凝土有限公司 | Device and method for rapidly testing pressure water absorption ratio of lightweight aggregate |
-
2016
- 2016-12-05 CN CN201621322329.0U patent/CN206300872U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195743A (en) * | 2018-03-19 | 2018-06-22 | 中国地质大学（北京） | A kind of shale imbibition measuring device and measuring method |
| CN108195743B (en) * | 2018-03-19 | 2023-11-07 | 中国地质大学（北京） | Shale seepage and absorption measuring device and measuring method |
| CN112525759A (en) * | 2020-11-23 | 2021-03-19 | 中建商品混凝土有限公司 | Device and method for rapidly testing pressure water absorption ratio of lightweight aggregate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170704 Termination date: 20171205 |