CN107191179A - A kind of Oil/gas Well hydrodynamic face method of testing - Google Patents
A kind of Oil/gas Well hydrodynamic face method of testing Download PDFInfo
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- CN107191179A CN107191179A CN201610146118.4A CN201610146118A CN107191179A CN 107191179 A CN107191179 A CN 107191179A CN 201610146118 A CN201610146118 A CN 201610146118A CN 107191179 A CN107191179 A CN 107191179A
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- 238000010998 test method Methods 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000012360 testing method Methods 0.000 claims abstract description 15
- 238000004458 analytical method Methods 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 55
- 230000008859 change Effects 0.000 claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 14
- 230000005251 gamma ray Effects 0.000 claims description 12
- 239000012071 phase Substances 0.000 claims description 10
- 239000003345 natural gas Substances 0.000 claims description 7
- 239000008346 aqueous phase Substances 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 5
- 230000001133 acceleration Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 claims description 3
- 210000002445 nipple Anatomy 0.000 claims description 3
- 238000011161 development Methods 0.000 abstract description 5
- 206010019233 Headaches Diseases 0.000 description 22
- 239000007788 liquid Substances 0.000 description 13
- 230000004044 response Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 241000894007 species Species 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 241000521257 Hydrops Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
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- 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
- E21B47/04—Measuring depth or liquid level
- E21B47/047—Liquid level
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention provides a kind of Oil/gas Well hydrodynamic face method of testing, belong to Reservoir Development field.Methods described is in Oil/gas Well production profile test process, tripping in instrument string, when the parameter of the instrument of each in instrument string changes, and judges that instrument string passes through hydrodynamic face；By hydrodynamic face vertical depth computation model, hydrodynamic face vertical depth and the Core analysis of well head pressure are set up, and then hydrodynamic face vertical depth is obtained according to well head pressure.The depth location in hydrodynamic face can be accurately detected using the inventive method.
Description
Technical field
The invention belongs to Reservoir Development field, and in particular to a kind of Oil/gas Well hydrodynamic face method of testing.
Background technology
With deeply developing for Domestic Oil And Gas Fields, Oil/gas Well hydrodynamic face test job amount gradually increases, liquid level money
Material plays very important effect in oil gas field realizes Efficient Development, by liquid level analysis, understands oil
The feed flow of gas well, gas ability, flowing bottomhole pressure (FBHP) can be calculated.According to dynamic level change, the work of Oil/gas Well is judged
Make system and the match condition of stratum energy, and then optimize production system, improve oil gas well yield.
Prior art is mainly measured using two ways, and one kind is echo type liquid planar survey method：Employ pulse
Sound wave returns method, using exciting as sound source for Testing gun, sound wave pulse is produced, by between oil pipe and sleeve pipe
The compressed natural gas of annular space is propagated downwards as medium.Whole oil pipe is spliced by up to a hundred pipeline sections and box cupling,
The length of the distance between box cupling, i.e. pipeline section be to determine with it is known.Sound wave often runs into communication process
One box cupling will produce a small echo, finally reach hydrodynamic one strong echo of surface launching, install
Substantial amounts of echo is received in the wave detector of well head, the display waveform after conversion amplification, filtering process,
By the species of each waveform of manual identified, the number reflected before oil well liquid level by box cupling is reached according to sound wave pulse
Average headway between mesh and tubing coupling, calculates the depth of well fluid level.But this method is by people
Work recognizes the species of each waveform, and it has human error；Using exciting as sound source for Testing gun, belong to one
Explosive sound source is planted, with certain risk；And cost is high, it is impossible to works continuously, can not monitor in real time.
Another method is automatically controlled gas explosion type method of testing：Survey is produced using sleeve pipe inside and outside differential pressure release gas
Source of students is measured, generation sound source can be excited at any time according to controller instruction, realize continuous automatic measurement.Analyze
High-frequency signal is main interference signal, and using the method for wavelet transformation, low frequency signal is become using Fourier
Change, carry out obtaining hydrodynamic face location in echo, so as to calculate the depth in hydrodynamic face.But should
Method is substantially still echo test method；And cost is high, even if working continuously, still can not realize reality
When monitor.
Therefore, existing pumpingh well hydrodynamic face method of testing, has cost height, and error is big, it is impossible to realize real
When the shortcoming that monitors.
The content of the invention
It is an object of the invention to solve problem present in above-mentioned prior art, there is provided a kind of Oil/gas Well hydrodynamic
Face method of testing, in Oil/gas Well production profile test process, can be recognized really by the response of instrument parameter
Determine the depth location in hydrodynamic face.By gas well dynamic oil level computation model, dynamic oil level and well are established
The Core analysis of mouth pressure, so as to calculate the depth location in hydrodynamic face according to well head pressure.Pass through liquid level data
Analysis, understands the feed flow of Oil/gas Well, gas ability, can calculate flowing bottomhole pressure (FBHP).According to dynamic level change, sentence
The working system of oil-break gas well and the match condition of stratum energy, and then optimize production system, improve Oil/gas Well
Yield.
The present invention is achieved by the following technical solutions：
A kind of Oil/gas Well hydrodynamic face method of testing, methods described includes：
In Oil/gas Well production profile test process, tripping in instrument string, when the parameter of the instrument of each in instrument string
When changing, judge that instrument string passes through hydrodynamic face；
By hydrodynamic face vertical depth computation model, hydrodynamic face vertical depth and the Core analysis of well head pressure are set up, and then
Hydrodynamic face vertical depth is obtained according to well head pressure.
Flexible nipple that the instrument string includes being sequentially connected, remote measurement short circuit, pressure gauge, magnetic orientator, help
Positive device, Natural Gamma Ray Tool, Density Measuring Instrument, online flowmeter, array turbine flowmeter, array capacitor holdup meter,
Thermometer, conventional water cut meter and full hole centralized traffic meter；
Utilize Natural Gamma Ray Tool and magnetic orientator emplacement depth；
The change of temperature in pit shaft is obtained using thermometer；
The change of wellbore pressure is obtained using pressure gauge；
The change of flow velocity in pit shaft is obtained using array turbine flowmeter；
The change of phase is obtained using conventional holdup meter and Density Measuring Instrument.
It is described when the parameter of the instrument of each in instrument string changes, judge that instrument string by hydrodynamic face is this
What sample was realized：
When instrument string is by hydrodynamic face, change if there is following parameters, then judge that instrument string passes through hydrodynamic
Face：
Obvious rotate occurs for 6 micro- rotors of the array turbine flowmeter；
The parameter of the array capacitor water cut meter is shown as aqueous phase by all full gas phases；
The conventional holdup meter is shown as aqueous phase by gas phase；
Obvious change occurs for the rotating speed of online flowmeter and full hole the centralized traffic meter；
Significant change occurs for the gamma ray curve that the Natural Gamma Ray Tool is measured.
The hydrodynamic face vertical depth computation model is as follows：
Wherein, h2For hydrodynamic face vertical depth, m；ρwFor the density of water, kg/m3；ρgFor natural gas density, kg/m3；
poFor the corresponding well head pressure of a certain production Q, MPa；H is horizontal segment vertical depth, m；G accelerates for gravity
Degree, N/m2。
The assumed condition of the hydrodynamic face vertical depth computation model includes：(1) working system is often changed, should
Known to the corresponding well head pressure of system；(2) change of the gas properties with pressure is ignored.
What the Core analysis for setting up hydrodynamic face vertical depth and well head pressure was realized in：
By abscissa of well head pressure, hydrodynamic face vertical depth be ordinate represented in coordinate diagram the gas well move
Level computation model then obtains hydrodynamic face vertical depth and the Core analysis of well head pressure.
It is described to obtain what hydrodynamic face vertical depth was realized according to well head pressure：
By the density p of known waterw, natural gas density ρg, well head pressure po, production Q, horizontal segment it is vertical
Depth H, gravity acceleration g and the flowing bottomhole pressure (FBHP) p obtained by manometry in instrument stringwfNumerical value generation
Enter into the hydrodynamic face vertical depth computation model then to obtain the corresponding hydrodynamic face vertical depth of the well head pressure；Or root
Corresponding hydrodynamic face is directly found from Core analysis of the hydrodynamic face vertical depth with well head pressure according to well head pressure
Vertical depth.
Compared with prior art, the beneficial effects of the invention are as follows：
The depth location in hydrodynamic face is detected using production profile method of testing, with it is convenient, accurate the characteristics of,
And without extra-pay.The depth location in hydrodynamic face can be accurately detected using the present invention.
Brief description of the drawings
Fig. 1 is middle production profile tester string according to embodiments of the present invention；
Fig. 2 be according to embodiments of the present invention in move that to show that instrument string passes through in liquid level test phenogram, figure dynamic
The response curve of parameters before and after liquid level；
Fig. 3 be according to embodiments of the present invention in hydrodynamic face computation model schematic diagram, given according to well track in figure
Hydrodynamic face gas-water interface face is gone out；
Fig. 4 is that hydrodynamic face according to embodiments of the present invention calculates different well head pressures and not are given in plate, figure
The corresponding dynamic oil level with yield.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings：
The invention provides a kind of Oil/gas Well hydrodynamic face method of testing.This method is to be surveyed in Oil/gas Well production profile
During examination, when instrument string is by hydrodynamic face, significant change occurs for instrument parameters, and then determines oil
Depth location where gas well hydrodynamic face.By gas well dynamic oil level computation model, dynamic oil level is established
With the Core analysis of well head pressure, so as to calculate the depth location in hydrodynamic face according to well head pressure.Pass through liquid level
Analysis, understands feed flow, the gas ability of Oil/gas Well, can calculate flowing bottomhole pressure (FBHP).According to dynamic level change,
Judge the working system of Oil/gas Well and the match condition of stratum energy, and then optimize production system, improve oil gas
Well yield.
In order to carry out Oil/gas Well production performance observation, generally using production logging, i.e. production profile test understands
Downhole production dynamic.Production profile test conveys tester string using cable or coiled tubing, and then complete
Olefiant gas well performance section plane test.Include as shown in figure 1, instrument string generally comprises figure Instrumental string：It is soft
Property pipe nipple 1, remote measurement short circuit 2, pressure gauge and magnetic orientator 3, centralizer 4, Natural Gamma Ray Tool 5, Density Measuring Instrument
6th, online flowmeter 7, array turbine flowmeter 8, array capacitor holdup meter 9, thermometer and conventional specific retention
Meter 10, full hole centralized traffic meter 11.
Natural Gamma Ray Tool 5 and magnetic orientator 3 are mainly used in being accurately positioned depth, and pressure gauge is used to reflect pit shaft
The change of pressure, thermometer is used to flow in the change for reflecting temperature in pit shaft, the reflection pit shaft of turbine flowmeter 8
The change of speed, holdup meter 9 and densitometer 6 are used for the change for reflecting phase.Lead to during instrument string tripping in
When crossing hydrodynamic face, significant change occurs for every instrument parameter in instrument string, can accurately test hydrodynamic face
Position.
Production profile test, when instrument string is by hydrodynamic face, instrument string are carried out in a bite shale gas well
Significant change (as shown in Figure 2) occurs for parameters.6 micro- rotors of array turbine flowmeter in instrument string
The obvious rotation of generation (it is 0 with respect to the rotating speed before hydrodynamic face, is rotated by rotor behind hydrodynamic face,
As can be seen from the figure it is obvious rotate).The parameter of array capacitor water cut meter is also shown as by all full gas phases
Aqueous phase.Conventional holdup meter is also shown as aqueous phase by gas phase (significant change occurs for density parameter reflection phase).
The rotating speed of online flowmeter 7 and full hole centralized traffic meter 11 there has also been obvious change (with respect to dynamic
Rotating speed before liquid level is 0, is rotated by rotor behind hydrodynamic face, is as can be seen from the figure substantially to turn
It is dynamic).Significant change also occurs for gamma ray curve, and (gamma ray curve has at hydrodynamic face significantly turns right
Spike).Fig. 2 right side is that array holdup meter explains imaging figure, it can be seen that dynamic liquid level position has obvious
Gas-water interface face.According to the response of instrument parameters, depth location residing for hydrodynamic face can be accurately judged.
Each instrument represents that significant change occurs for instrument string parameters when by hydrodynamic face in Fig. 1, and then determines
The depth data in pressure data and hydrodynamic face has only been used in the depth location in hydrodynamic face, final formula.
Dynamic oil level is closely related with gas well working system.By setting up dynamic oil level computation model (such as
Shown in Fig. 3), available for the pit shaft hydrops situation judged under different operating system, so as to be discharge opeing conceptual design
Foundation is provided；Meanwhile, the model can provide accurate bottom pressure parameter, and then dynamically be analyzed for gas well liquid loading
Foundation is provided with evaluating production capacity.
The assumed condition of model includes：(1) working system, the corresponding well head pressure of the system are often changed
Known (well head pressure is read on ground by pressure gauge)；(2) change of the gas properties with pressure is ignored.
As shown in figure 3, be water below hydrodynamic face, top is gas, using the yield under each working system and
Well head pressure, can obtain the hydrodynamic face vertical depth h under different operating system2：
Wherein, ρwFor the density of water, kg/m3；ρgFor natural gas density, kg/m3；poFor a certain production Q pair
The well head pressure answered, MPa；H is horizontal segment vertical depth, m；G is acceleration of gravity, N/m2。
In above-mentioned two formula, the density p of waterw, natural gas density ρg, well head pressure po, production Q, water
Flat section vertical depth H, g are that acceleration of gravity is all known conditions；Flowing bottomhole pressure (FBHP) pwfIt is by instrument string
What manometry was obtained.
The related data of this mouthful of well is substituted into above-mentioned model, can obtain the well hydrodynamic face calculation formula is：
h2=195.03Q+111.11po-534.28
Using the model, this mouthful of well is further depicted dynamic under different production systems, different well head pressures
Liquid level meter nomogram version, as shown in Figure 4.
The well by 5.6 ten thousand sides of gas well yield Q/day production when, calculate hydrodynamic face vertical depth 2191.22m, this
Secondary test actual measurement hydrodynamic face vertical depth 2066.38m, error 6.04%, coincidence rate is preferable.
Present invention is mainly applied to Reservoir Development field, especially with regard to Oil/gas Well production performance evaluation method.
With deeply developing for Domestic Oil And Gas Fields, Oil/gas Well hydrodynamic face test job amount gradually increases, and liquid level data exists
Oil gas field, which is realized, plays very important effect in Efficient Development, have a extensive future.
Above-mentioned technical proposal is one embodiment of the present invention, for those skilled in the art,
On the basis of the invention discloses application process and principle, it is easy to make various types of improvement or deformation,
The method described by above-mentioned embodiment of the invention is not limited solely to, therefore previously described mode is
It is preferred that, and not restrictive meaning.
Claims (7)
1. a kind of Oil/gas Well hydrodynamic face method of testing, it is characterised in that：Methods described includes：
In Oil/gas Well production profile test process, tripping in instrument string, when the parameter of the instrument of each in instrument string
When changing, judge that instrument string passes through hydrodynamic face；
By hydrodynamic face vertical depth computation model, hydrodynamic face vertical depth and the Core analysis of well head pressure are set up, and then
Hydrodynamic face vertical depth is obtained according to well head pressure.
2. Oil/gas Well hydrodynamic face method of testing according to claim 1, it is characterised in that：The instrument string bag
Include the flexible nipple being sequentially connected, remote measurement short circuit, pressure gauge, magnetic orientator, centralizer, Natural Gamma Ray Tool,
Density Measuring Instrument, online flowmeter, array turbine flowmeter, array capacitor holdup meter, thermometer, conventional water holding
Rate meter and full hole centralized traffic meter；
Utilize Natural Gamma Ray Tool and magnetic orientator emplacement depth；
The change of temperature in pit shaft is obtained using thermometer；
The change of wellbore pressure is obtained using pressure gauge；
The change of flow velocity in pit shaft is obtained using array turbine flowmeter；
The change of phase is obtained using conventional holdup meter and Density Measuring Instrument.
3. Oil/gas Well hydrodynamic face method of testing according to claim 2, it is characterised in that：It is described to work as instrument string
In the parameter of each instrument when changing, judge what instrument string was realized in by hydrodynamic face：
When instrument string is by hydrodynamic face, change if there is following parameters, then judge that instrument string passes through hydrodynamic
Face：
Obvious rotate occurs for 6 micro- rotors of the array turbine flowmeter；
The parameter of the array capacitor water cut meter is shown as aqueous phase by all full gas phases；
The conventional holdup meter is shown as aqueous phase by gas phase；
Obvious change occurs for the rotating speed of online flowmeter and full hole the centralized traffic meter；
Significant change occurs for the gamma ray curve that the Natural Gamma Ray Tool is measured.
4. Oil/gas Well hydrodynamic face method of testing according to claim 3, it is characterised in that：Hang down in the hydrodynamic face
Deep computation model is as follows：
<mrow>
<msub>
<mi>h</mi>
<mn>2</mn>
</msub>
<mo>=</mo>
<mfrac>
<mrow>
<mn>0.01</mn>
<msub>
<mi>&rho;</mi>
<mi>w</mi>
</msub>
<mi>g</mi>
<mi>H</mi>
<mo>-</mo>
<mrow>
<mo>(</mo>
<msub>
<mi>p</mi>
<mrow>
<mi>w</mi>
<mi>f</mi>
</mrow>
</msub>
<mo>-</mo>
<msub>
<mi>p</mi>
<mi>o</mi>
</msub>
<mo>)</mo>
</mrow>
</mrow>
<mrow>
<mn>0.01</mn>
<mrow>
<mo>(</mo>
<msub>
<mi>&rho;</mi>
<mi>w</mi>
</msub>
<mo>-</mo>
<msub>
<mi>&rho;</mi>
<mi>g</mi>
</msub>
<mo>)</mo>
</mrow>
<mi>g</mi>
</mrow>
</mfrac>
</mrow>
Wherein, h2For hydrodynamic face vertical depth, m；ρwFor the density of water, kg/m3；ρgFor natural gas density, kg/m3；
poFor the corresponding well head pressure of a certain production Q, MPa；H is horizontal segment vertical depth, m；G accelerates for gravity
Degree, N/m2。
5. Oil/gas Well hydrodynamic face method of testing according to claim 4, it is characterised in that：Hang down in the hydrodynamic face
The assumed condition of deep computation model includes：(1) working system, the corresponding well head pressure of the system are often changed
Known to power；(2) change of the gas properties with pressure is ignored.
6. Oil/gas Well hydrodynamic face method of testing according to claim 5, it is characterised in that：It is described to set up hydrodynamic
What face vertical depth and the Core analysis of well head pressure were realized in：
By abscissa of well head pressure, hydrodynamic face vertical depth be ordinate represented in coordinate diagram the gas well move
Level computation model then obtains hydrodynamic face vertical depth and the Core analysis of well head pressure.
7. Oil/gas Well hydrodynamic face method of testing according to claim 6, it is characterised in that：It is described according to well head
Pressure obtains what hydrodynamic face vertical depth was realized in：
By the density p of known waterw, natural gas density ρg, well head pressure po, production Q, horizontal segment it is vertical
Depth H, gravity acceleration g and the flowing bottomhole pressure (FBHP) p obtained by manometry in instrument stringwfNumerical value generation
Enter into the hydrodynamic face vertical depth computation model then to obtain the corresponding hydrodynamic face vertical depth of the well head pressure；Or root
Corresponding hydrodynamic face is directly found from Core analysis of the hydrodynamic face vertical depth with well head pressure according to well head pressure
Vertical depth.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610146118.4A CN107191179A (en) | 2016-03-15 | 2016-03-15 | A kind of Oil/gas Well hydrodynamic face method of testing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610146118.4A CN107191179A (en) | 2016-03-15 | 2016-03-15 | A kind of Oil/gas Well hydrodynamic face method of testing |
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| Publication Number | Publication Date |
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| CN107191179A true CN107191179A (en) | 2017-09-22 |
Family
ID=59871453
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| CN201610146118.4A Pending CN107191179A (en) | 2016-03-15 | 2016-03-15 | A kind of Oil/gas Well hydrodynamic face method of testing |
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Cited By (3)
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| CN109944582A (en) * | 2018-12-29 | 2019-06-28 | 贵州省地质矿产勘查开发局一一五地质大队 | Method for analyzing position of stratum containing fractures in shaft |
| CN113338915A (en) * | 2021-07-13 | 2021-09-03 | 西南石油大学 | Method for judging whether gas well accumulates liquid and predicting liquid accumulation height |
| CN114293966A (en) * | 2022-01-06 | 2022-04-08 | 山东鲁银盐穴储能工程技术有限公司 | Inversion method for net space in sediment filling cavity |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944582A (en) * | 2018-12-29 | 2019-06-28 | 贵州省地质矿产勘查开发局一一五地质大队 | Method for analyzing position of stratum containing fractures in shaft |
| CN113338915A (en) * | 2021-07-13 | 2021-09-03 | 西南石油大学 | Method for judging whether gas well accumulates liquid and predicting liquid accumulation height |
| CN114293966A (en) * | 2022-01-06 | 2022-04-08 | 山东鲁银盐穴储能工程技术有限公司 | Inversion method for net space in sediment filling cavity |
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