CN106481338A - Natural gas reservoirs commingling production productivity simulation experimental provision - Google Patents
Natural gas reservoirs commingling production productivity simulation experimental provision Download PDFInfo
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- CN106481338A CN106481338A CN201610791674.7A CN201610791674A CN106481338A CN 106481338 A CN106481338 A CN 106481338A CN 201610791674 A CN201610791674 A CN 201610791674A CN 106481338 A CN106481338 A CN 106481338A
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- gas
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/14—Obtaining from a multiple-zone well
Abstract
It is an object of the present invention to provide a kind of easy to operate, can accurately simulate the natural gas reservoirs commingling production productivity simulation experimental provision of gas production capacity quantitative assessment under the conditions of many natural gass payzone commingling production operation process.The natural gas reservoirs commingling production productivity simulation experimental provision of the present invention, including multiple pressure gas bottles, the gas outlet of each pressure gas bottle is connected with the air inlet of an air relief valve respectively, the gas outlet of each air relief valve is connected with the air inlet on the cylinder of a core holding unit respectively, temperature measuring equipment and confined pressure measurement apparatus are respectively equipped with the wall of each core holding unit cylinder, the gas outlet of each core holding unit cylinder is connected with the import of a two way valve with the pipeline of a flowmeter for pipe by being in series with arm counterbalance valve respectively, the one outlet of each two way valve is connected with the bottom of hydrostatic column by pipeline respectively, the top of hydrostatic column is connected with ambient atmosphere with the pipeline of total flowmeter for pipe by being in series with house steward's counterbalance valve.
Description
Technical field
The present invention relates to petroleum works field, the particularly polymorphic type such as sandstone gas, coal bed gas, shale gas natural gas reservoirs list
Well commingling production gas evaluating production capacity, in particulars relate to a kind of natural gas reservoirs commingling production productivity simulation experimental provision.
Background technology
The polymorphic type natural gas reservoirs monolayer Well Development high cost such as compact sandstone gas, coal bed gas and shale gas, individual well
Yield is difficult to recoup the investment rapidly.If vertical direction same type stratum Multi-layers distributing can be utilized, or polymorphic type stratum
It is mingled with distribution geologic feature, carries out individual well commingling production, be conducive to improving the multiclass such as compact sandstone gas, coal bed gas and shale gas
Type natural gas payzone well yield, reduces Well Development cost.
Sandstone and sandstone, sandstone and coal petrography multilamellar are carried out in resource-area with Ordos Basin, the Caidamu Basin as representative
Conjunction is adopted in engineering practice and is found, Different Strata physical property is different, and strata pressure is different, and commingling production gas production capacity interferes, and deposits
In gas capacity loss.But dissimilar stratum, that different depth stratigraphy assemblage annoyance level has height to have is low.For this reason, to keep away as far as possible
Exempting from interference is target, and preferably the conjunction of many gas-bearing formations combination and exploitation is adopted is the developing direction of polymorphic type natural gas reservoirs exploitation.
Regrettably, the equipment still not having maturation at present supports natural gas reservoirs commingling production gas production capacity effect to comment
Valency, laboratory experiment appraisal of equipment commingling production production capacity effect is set up in some scholars trial both at home and abroad, but experimentation is opened with scene
Send out actual larger apart, lead to evaluation result cannot effectively develop guide field.For this reason, being capable of Efficient Characterization in the urgent need to one kind
Live polymorphic type natural gas reservoirs close the simulating lab test equipment adopting production capacity effect.
Content of the invention
It is an object of the invention to provide a kind of experimental result is directly perceived, easy to operate, in experimental provision, each monolayer simulation is only
Vertical property is strong, can accurately simulate the natural gas storage of gas production capacity quantitative assessment under the conditions of many natural gass payzone commingling production operation process
Layer multi-layer closes and adopts productivity simulation experimental provision.
The natural gas reservoirs commingling production productivity simulation experimental provision of the present invention, including multiple pressure gas bottles, each pressure
The gas outlet that power holds gas cylinder is connected with the air inlet of an air relief valve by being in series with the pipeline of check valve respectively, each air relief valve
Gas outlet be connected with the air inlet on the cylinder of a core holding unit by pipeline respectively, each core holding unit cylinder
Wall on be respectively equipped with temperature measuring equipment and confined pressure measurement apparatus, the gas outlet of each core holding unit cylinder passes through string respectively
The pipeline being associated with arm counterbalance valve with a flowmeter for pipe is connected with the import of a two way valve, and wherein the one of each two way valve
Individual outlet is connected with the bottom of hydrostatic column by pipeline respectively, and hydrostatic column is vertically arranged, hydrostatic column
Top be connected with ambient atmosphere with the pipeline of total flowmeter for pipe by being in series with house steward's counterbalance valve.
Preferably, the quantity of described pressure gas bottle is 36.
Preferably, another outlet of each described two way valve is connected with ambient atmosphere respectively.
Preferably, a diameter of 25mm or 38mm or 50mm or 75mm or 100mm of the cylinder lumen of described core holding unit.
Preferably, it is provided with rock core plunger in the cylinder of described core holding unit.
Preferably, described pressure gas bottle is high pressure constant volume gas cylinder.
The having the beneficial effect that of the natural gas reservoirs commingling production productivity simulation experimental provision of the present invention：
The natural gas reservoirs commingling production productivity simulation experimental provision of the present invention, can be applied to petroleum works field,
The particularly polymorphic type such as sandstone gas, coal bed gas, shale gas natural gas reservoirs individual well commingling production gas evaluating production capacity, its success is real
Show gas production capacity quantitative assessment under the conditions of indoor accurate simulation many natural gass payzone commingling production operation process, and test dress
Put and can carry out any number of combine analog respectively to each monolayer, its experimental result is very directly perceived, easy to operate.Therefore, this
Bright natural gas reservoirs commingling production productivity simulation experimental provision has experimental result intuitively, easy to operate, each in experimental provision
The independence of monolayer simulation is strong, and under the conditions of can accurately simulating many natural gass payzone commingling production operation process, gas production capacity is quantitatively commented
The feature of valency.
The present invention is described in further detail below in conjunction with the accompanying drawings.
Brief description
Fig. 1 is the schematic diagram of the natural gas reservoirs commingling production productivity simulation experimental provision of the present invention；
Fig. 2 is that in record tertiary industry layer multi-layer exploitation simulation experiment, gas flow rate changes over data.
Specific embodiment
As shown in figure 1, the natural gas reservoirs commingling production productivity simulation experimental provision of the present invention, including multiple pressure gas
Bottle 1, the gas outlet of each pressure gas bottle 1 is respectively by being in series with the pipeline of check valve 2 and the air inlet phase of an air relief valve 3
Even, the gas outlet of each air relief valve 3 is connected with the air inlet on the cylinder of a core holding unit 4 by pipeline respectively, each
Temperature measuring equipment 5 and confined pressure measurement apparatus 6 are respectively equipped with the wall of core holding unit 4 cylinder, each core holding unit 4 cylinder
Gas outlet respectively by being in series with arm counterbalance valve 7 and the pipeline of a flowmeter for pipe 8 and the import phase of a two way valve 9
Even, one of outlet of each two way valve 9 is connected with the bottom of hydrostatic column 10 by pipeline respectively, and cylinder describes
Device 10 is vertically arranged, and the top of hydrostatic column 10 is by being in series with the pipe of house steward's counterbalance valve 11 and total flowmeter for pipe 12
Road is connected with ambient atmosphere.
As a further improvement on the present invention, the quantity of above-mentioned pressure gas bottle 1 is 36.
As a further improvement on the present invention, each two way valve 9 above-mentioned another outlet respectively with ambient atmosphere phase
Even.
As a further improvement on the present invention, a diameter of 25mm or 38mm of the cylinder lumen of above-mentioned core holding unit 4 or
50mm or 75mm or 100mm.
As a further improvement on the present invention, it is provided with rock core plunger in the cylinder of above-mentioned core holding unit 4.
As a further improvement on the present invention, above-mentioned pressure gas bottle is high pressure constant volume gas cylinder.
Enumeration one utilizes 3 products of the natural gas reservoirs commingling production productivity simulation experimental provision simulation of the present invention below
The embodiment on layer stratum
The 3 payzone formation parameters simulated are as shown in table 1.
Table 1 payzone formation parameter
Embodiment 1
Payzone 1 and payzone 2 are developed jointly
In order to simulate above-mentioned 3 payzones, need using three pressure gas bottles 1, as illustrated in fig. 2, it is assumed that three pressure hold
The numbering of gas cylinder 1 is respectively gas cylinder 11, gas cylinder 12 and gas cylinder 13, and gas cylinder 11 therein corresponds to ordinal number of stratum A, and gas cylinder 12 is corresponding
In ordinal number of stratum B, gas cylinder 13 corresponds to ordinal number of stratum C.
Setting gas cylinder 11 initial pressure is 30MPa, and the confined pressure of the core holding unit 21 being connected with gas cylinder 11 is 16MPa.Will
The rock core plunger of diameter 25mm loads core holding unit 21, arranges 46 DEG C of rock core ram temperature, the entering of core holding unit 21 cylinder
The constant 13MPa of outlet pressure.
Setting gas cylinder 12 initial pressure is 30MPa, and core holding unit 22 confined pressure being connected with gas cylinder 12 is 18MPa.Will be straight
The rock core plunger of footpath 25mm loads core holding unit 22, arranges 48 DEG C of rock core ram temperature, the air inlet of core holding unit 22 cylinder
The mouth constant 15MP of pressure.
Setting gas cylinder 13 initial pressure is 30MPa, and core holding unit 23 confined pressure being connected with gas cylinder 13 is 20MPa.Will be straight
The rock core plunger of footpath 25mm loads core holding unit 23, arranges 50 DEG C of ram temperature, the air inlet pressure of core holding unit 23 cylinder
The constant 17MPa of power.
Pressed gas are delivered to hydrostatic column 10 by general three two way valves, and control main pipe line counterbalance valve pressure is
4MPa, you can three payzones of simulation close adopts exploitation.
Result is as shown in table 2.To during 28MPa, effusion meter 84 reading continuously becomes record gas cylinder 11,12,13 decline of pressure
Change, in calculating cycle, 3 payzones close extraction gas mean flow rate Qa.
In record tertiary industry layer multi-layer exploitation simulation experiment, gas flow rate changes over data, sees Fig. 2
So that, in decline of pressure amplitude, main pipe line outlet average discharge characterizes and closes gas production body production capacity, is shown in Table 2.
Table 2 tertiary industry lamination adopts productivity simulation experimental data
| Calculating parameter | Evaluation |
| Three lamination gas production body overall flow rates | 3441.18mL/min |
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, all should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by described scope of the claims.
Claims (6)
1. natural gas reservoirs commingling production productivity simulation experimental provision it is characterised in that：Including multiple pressure gas bottles (1), often
The gas outlet of individual pressure gas bottle (1) is respectively by being in series with the pipeline of check valve (2) and the air inlet phase of an air relief valve (3)
Even, the gas outlet of each air relief valve (3) is connected with the air inlet on the cylinder of a core holding unit (4) by pipeline respectively,
Temperature measuring equipment (5) and confined pressure measurement apparatus (6), each rock core are respectively equipped with the wall of each core holding unit (4) cylinder
The gas outlet of clamper (4) cylinder respectively by be in series with the pipeline of arm counterbalance valve (7) and flowmeter for pipe (8) with one pair
It is connected to the import of valve (9), pipeline and hydrostatic column (10) are passed through in one of outlet of each two way valve (9) respectively
Bottom be connected, hydrostatic column (10) is vertically arranged, and the top of hydrostatic column (10) is by being in series with house steward's back of the body
Pressure valve (11) is connected with ambient atmosphere with the pipeline of total flowmeter for pipe (12).
2. natural gas reservoirs commingling production productivity simulation experimental provision according to claim 1 it is characterised in that：Described pressure
The quantity that power holds gas cylinder (1) is 36.
3. natural gas reservoirs commingling production productivity simulation experimental provision according to claim 2 it is characterised in that：Each institute
Another outlet stating two way valve (9) is connected with ambient atmosphere respectively.
4. natural gas reservoirs commingling production productivity simulation experimental provision according to claim 3 it is characterised in that：Described rock
A diameter of 25mm or 38mm of the cylinder lumen of heart clamp holder (4) or 50mm or 75mm or 100mm.
5. the natural gas reservoirs commingling production productivity simulation experimental provision according to any one of Claims 1-4, it is special
Levy and be：It is provided with rock core plunger in the cylinder of described core holding unit (4).
6. natural gas reservoirs commingling production productivity simulation experimental provision according to claim 5 it is characterised in that：Described pressure
It is high pressure constant volume gas cylinder that power holds gas cylinder.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108505979A (en) * | 2018-03-14 | 2018-09-07 | 中国石油化工股份有限公司 | A kind of natural gas pool commingling production physical simulation system |
| CN108756859A (en) * | 2018-05-03 | 2018-11-06 | 中国石油天然气股份有限公司 | The analogue experiment installation and method of gas reservoir commingling production side water water-invasion mechanism |
| CN108798655A (en) * | 2018-05-23 | 2018-11-13 | 成都理工大学 | Experimental provision is adopted in a kind of three gas conjunction of coal bed gas loss |
| CN109826621A (en) * | 2019-01-17 | 2019-05-31 | 西安科技大学 | A kind of coal bed gas commingling production air water two phase fluid flow experimental provision and test method |
| CN110672490A (en) * | 2019-10-14 | 2020-01-10 | 辽宁工程技术大学 | Coal bed gas multilayer commingled production experimental device and method for simulating bottom hole pressure |
| CN114152551A (en) * | 2021-09-15 | 2022-03-08 | 中国华能集团有限公司 | Simulation experiment system and method for gas displacement and replacement of natural gas |
| CN115095320A (en) * | 2022-07-06 | 2022-09-23 | 西南石油大学 | Experimental device for simulating high-low pressure double-layer combined mining of gas reservoir |
| CN115372400A (en) * | 2022-10-27 | 2022-11-22 | 中国煤炭地质总局勘查研究总院 | Experimental device for simulating different gas reservoir commingled production compatibility and using method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108505979A (en) * | 2018-03-14 | 2018-09-07 | 中国石油化工股份有限公司 | A kind of natural gas pool commingling production physical simulation system |
| CN108756859A (en) * | 2018-05-03 | 2018-11-06 | 中国石油天然气股份有限公司 | The analogue experiment installation and method of gas reservoir commingling production side water water-invasion mechanism |
| CN108798655A (en) * | 2018-05-23 | 2018-11-13 | 成都理工大学 | Experimental provision is adopted in a kind of three gas conjunction of coal bed gas loss |
| CN108798655B (en) * | 2018-05-23 | 2021-08-31 | 成都理工大学 | Three-gas combined mining experimental device for coal bed gas loss |
| CN109826621A (en) * | 2019-01-17 | 2019-05-31 | 西安科技大学 | A kind of coal bed gas commingling production air water two phase fluid flow experimental provision and test method |
| CN109826621B (en) * | 2019-01-17 | 2022-05-17 | 西安科技大学 | Coal bed gas multilayer combined gas-water two-phase seepage experimental device and test method |
| CN110672490A (en) * | 2019-10-14 | 2020-01-10 | 辽宁工程技术大学 | Coal bed gas multilayer commingled production experimental device and method for simulating bottom hole pressure |
| CN110672490B (en) * | 2019-10-14 | 2022-03-25 | 辽宁工程技术大学 | Coal bed gas multilayer commingled production experimental device and method for simulating bottom hole pressure |
| CN114152551A (en) * | 2021-09-15 | 2022-03-08 | 中国华能集团有限公司 | Simulation experiment system and method for gas displacement and replacement of natural gas |
| CN115095320A (en) * | 2022-07-06 | 2022-09-23 | 西南石油大学 | Experimental device for simulating high-low pressure double-layer combined mining of gas reservoir |
| CN115372400A (en) * | 2022-10-27 | 2022-11-22 | 中国煤炭地质总局勘查研究总院 | Experimental device for simulating different gas reservoir commingled production compatibility and using method |
| CN115372400B (en) * | 2022-10-27 | 2023-02-03 | 中国煤炭地质总局勘查研究总院 | Experimental device for simulating different gas reservoir commingled production compatibility and using method |
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