CN110080743A - Oil well potentiality detection method - Google Patents
Oil well potentiality detection method Download PDFInfo
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- CN110080743A CN110080743A CN201810069048.6A CN201810069048A CN110080743A CN 110080743 A CN110080743 A CN 110080743A CN 201810069048 A CN201810069048 A CN 201810069048A CN 110080743 A CN110080743 A CN 110080743A
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- 239000003129 oil well Substances 0.000 title claims abstract description 182
- 238000001514 detection method Methods 0.000 title claims abstract description 62
- 238000004519 manufacturing process Methods 0.000 claims abstract description 89
- 238000000034 method Methods 0.000 claims abstract description 44
- 238000012360 testing method Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 42
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 32
- 239000007789 gas Substances 0.000 claims description 29
- 239000012530 fluid Substances 0.000 claims description 21
- 239000003345 natural gas Substances 0.000 claims description 19
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 17
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 17
- 241001365789 Oenanthe crocata Species 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 3
- 235000020681 well water Nutrition 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims 1
- 238000004445 quantitative analysis Methods 0.000 abstract description 3
- 238000011156 evaluation Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 67
- 239000010779 crude oil Substances 0.000 description 16
- 238000011084 recovery Methods 0.000 description 13
- 239000011435 rock Substances 0.000 description 8
- 239000003208 petroleum Substances 0.000 description 7
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000002547 anomalous effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011549 displacement method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 206010016256 fatigue Diseases 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002349 well water Substances 0.000 description 2
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
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- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
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- 238000000605 extraction Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
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Classifications
-
- 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
-
- 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
- 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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The present invention provides a kind of oil well potentiality detection method.Method of the invention carries out comprehensive score to target oil well according to the testing result of output object, historical data and offset well production status, and the scoring is compared with standard scores, judges whether target oil well has the potentiality for continuing steady production with this.Method of the invention has carried out quantitative analysis evaluation to the indices for influencing oil well potentiality, it can accurately judge whether target oil well has potentiality according to the final appraisal results obtained, strong operability in actual production reproduces success rate height by having potential oil well after judgement.
Description
Technical field
The present invention relates to technical field of petroleum extraction more particularly to a kind of oil well potentiality detection methods.
Background technique
The steady of oil well can be seriously affected in the higher situation of moisture content in the crude oil of the well water or production that normally produce
Fixed production.But it might not illustrate to generate without crude oil in the reservoir of oil well bottom when the above problem occurs in oil well
There are deviation or shaft bottom and oil-water interfaces during at production for oil water relation understanding before this problem is possible as drilling well
Relative positional relationship have occurred and the reasons such as change caused by, therefore, it is necessary to carry out Potentials to the oil well for leading to the problem of this,
Detect whether it has the potentiality for continuing steady production.
In the prior art to the detection of oil well potentiality mainly by higher to the former Water in oil for being discharged or producing
Oil well carries out draining, is discharged and resumes production after a certain amount of water again in oil well and check production status at this time.If restoring
Normal production then determines that oil well has the potentiality for continuing steady production；Determine if it cannot return to normal production oil well do not have after
The potentiality of continuous steady production.
But the judgment basis of the detection method of the prior art is not comprehensive enough, the accuracy of judging result is poor.
Summary of the invention
In order to overcome the drawbacks described above under the prior art, the purpose of the present invention is to provide a kind of oil well potentiality detection sides
Method, method of the invention can accurately judge the potentiality of target oil well, strong operability in actual production.
The present invention provides a kind of oil well potentiality detection method, comprising:
The output object for obtaining target well mouth of oil well, detects the output object；
Wherein, the detection carried out to the output object includes: hydrogen sulfide content detection, crude content detects, natural gas contains
Amount detection and water energy detection；
Obtain the historical data of target oil well；
Wherein, the historical data includes: oil well relative position, well logging oil reservoir and oil well Reservoir Body scale；
Obtain the offset well production status of target oil well；
Wherein, the offset well production status includes: that offset well tires out oil production；
According to the testing result of the output object, the historical data and the offset well production status to the target oil well
Carry out comprehensive score；The comprehensive score is compared with standard scores, judges whether the target oil well has and continues to stablize
The potentiality of production.
Oil well potentiality detection method as described above, optionally, the judgment method of the target oil well are as follows:
The production fluid for acquiring well mouth of oil well, judges the moisture content in the production fluid；
Wherein, if the moisture content of the production fluid is more than or equal to 70%, the oil well is target oil well；
If the moisture content of the production fluid, less than 70%, the oil well is not target oil well.
Oil well potentiality detection method as described above, optionally, the method for the hydrogen sulfide content detection are as follows: utilize vulcanization
Hydrogen survey meter detects the output object, obtains the content of hydrogen sulfide in the output object.
Oil well potentiality detection method as described above, optionally, the method for the crude content detection are as follows: to the institute of collection
It states output object and carries out oil composition detection, obtain testing result.
Oil well potentiality detection method as described above, optionally, the method for the natural gas content detection are as follows: by institute
The gas componant stated in output object is lighted, and natural gas is judged whether there is；
Wherein, if the gas componant in the output object can light, there are natural gases for judgement；
If the gas componant in the output object cannot light, natural gas is not present in judgement.
Oil well potentiality detection method as described above, optionally, the method for the water energy detection are as follows: according to the mesh
The unit pressure drop water yield for marking oil well or the plot of water cut in production process, judge the water energy of the target oil well.
Oil well potentiality detection method as described above, optionally, the judgment method of the well logging oil reservoir are as follows: pass through work of logging well
Tool measures gamma, resistivity and the interval transit time of Different Strata in the target oil well；
Wherein, if the gamma and resistivity of the gamma on a certain stratum and the resistivity bottom adjacent compared with its are low, and when sound wave
Difference is got higher, then the stratum is oil reservoir.
Oil well potentiality detection method as described above, optionally, the judgment method of the oil well Reservoir Body scale are as follows: pass through
The earthquake engraving figure or dynamic holdup of the target oil well, judge the Reservoir Body scale of the target oil well.
Oil well potentiality detection method as described above, optionally, the oil well relative position refers to: oil well bottom hole location with
The vertical range of oil well construction highest point；
Wherein, the oil well bottom hole location is obtained by well data；
The position preparation method of the oil well construction highest point are as follows: earthquake is emitted to stratum by manufacture of intraocular microseism
Different transmitted waves can be presented in different bed boundaries for wave, the seismic wave, pass through calculating after ground receives back wave
It can be obtained the depth on different location stratum, minimum value is the position of the oil well construction highest point in the depth on the stratum
It sets.
Oil well potentiality detection method as described above is optionally provided according to the testing result of the output object, the history
The method that material and the offset well production status carry out comprehensive score to the target oil well are as follows:
According to the testing result of the preset output object, the historical summary and the offset well production status score value and
Its weighted value calculates the comprehensive score, and the comprehensive score is the score value and the weighted value sum of products of parameters.
Oil well potentiality detection method provided by the invention is produced according to the testing result, historical data and offset well of output object
State carries out comprehensive score to target oil well, and the scoring is compared with standard scores, judges whether target oil well has with this
There are the potentiality for continuing steady production.Method of the invention has carried out quantitative analysis evaluation to the indices for influencing oil well potentiality,
It can accurately judge whether target oil well has potentiality according to the final appraisal results obtained, can operate in actual production
Property it is strong, by having potential oil well after judgement and reproducing success rate height.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the flow chart for the oil well potentiality detection method that one embodiment of the invention provides.
Fig. 2 (a)-Fig. 2 (c) is the plot of water cut figure in different production processes.
Fig. 3 is the schematic diagram of oil well relative position in the present invention.
Appended drawing reference:
1- oil well.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.In the absence of conflict, following embodiment and implementation
Feature in example can be combined with each other.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be direct phase
Even, can also indirectly connected through an intermediary, the interaction that can be connection or two elements inside two elements is closed
System.For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood as the case may be
Meaning.
It should be noted that in the description of the present invention, term " first ", " second ", which are only used for facilitating, describes different portions
Part is not understood to indicate or imply ordinal relation, relative importance or the number for implicitly indicating indicated technical characteristic
Amount." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one of the features.
Petroleum be include gaseous state present in nature, liquid and solid hydrocarbon compound and a small amount of impurity composition answer
Miscellaneous mixture.Oil gas is present in oil generation gas-bearing formation after earth's crust generation with dispersity, is then passed through migration and is entered reservoir simultaneously
Aggregation forms oil-gas reservoir in the geological stratification with good preservation condition.Oil exploitation is in the reservoir for storing petroleum to stone
The process that oil is excavated and extracted, reservoir, which has, allows gas stream in the storage space wherein passed through, and reservoir space includes rock
Crack in hole, rock fracture, the hole gap formed through corrosion between stone clast etc., the size of reservoir space void,
Distribution and connection situation affect the flowing of oil gas, to decide the feature of oil-gas mining.
During oil exploitation, oil gas usually first flows into shaft bottom from reservoir, then rises to well head from shaft bottom, then from well
Mouth flows into oil gathering station, and after separating and dehydrating is handled, oil gas flows into oil transportation gas master station and simultaneously transfers out mining area.
Oil exploitation can substantially be divided into three phases:
Primary oil recovery usually relies on the natural energies such as rock expansion, edge water drive, gravity, natural gas expansion and is exploited,
The stage is mainly lifted to the petroleum in oil reservoir voluntarily outside well by oil pipe using natural energy；However, with crude oil and day
The continuous output of right gas, the volume of fluid gradually extends in reservoir rock and stratum, and elastic energy gradually discharges, the stage petroleum
Recovery ratio averagely be only 15-20%.
Secondary oil recovery is mainly that the pressure of oil reservoir is improved by modes such as water filling, gas injections, thus the energy after oil well stop-spraying
Oil well is enough set to continue oil-producing.Wherein, water flooding recovery is to inject water into oil reservoir by special injection well to keep or restore oil reservoir
Pressure, to make the stronger driving force of reservoir formation to improve the exploitation rate and recovery ratio of oil reservoir；Gas injecting mining is mainly benefit
With interfacial tension being reduced, improve permeability the effects of the injection viscosity reduction of gas, expansion, mixed phase, molecule diffusion, and then improve oil
Field tar productivity.Due to the heterogeneity on stratum, fluid is injected generally along the lesser approach of resistance and flows to oil well, and be in resistance
Petroleum in relatively large region and it is some still can not be extracted by the adsorbed petroleum of rock, therefore secondary adopt
The recovery ratio in oily stage is still limited.
Tertiary oil recovery mainly changes the viscosity of crude oil and the absorption to rock by using various physics, chemical method
Property, to increase the fluid ability of crude oil, further increase oil recovery factor.Tertiary oil recovery method mainly includes oil recovery by heating
Method, chemical flooding oil process, miscible displacement of reservoir method, microbial oil displacement method etc..Wherein, thermal recovery processes mainly utilize reduction viscosity of crude
Mode improves recovery ratio, and wherein steam soak is a kind of common oil recovery by heating method, a certain amount of by injecting to oil well
Steam and make the thermal energy of steam to oil reservoir spread, thus greatly reduce viscosity of crude, improve the fluid ability of crude oil；Change
Displacement of reservoir oil method is learned mainly to increase the viscosity of water flooding by injection chemical agent, the viscosity ratio for changing crude oil and water flooding, reduce ground
Gap in layer between the fluid ability of water and the fluid ability of oil, while crude oil is reduced to the adsorptivity of rock to improve the displacement of reservoir oil
Efficiency；Miscible displacement of reservoir method mainly passes through the gases such as injection natural gas, carbon dioxide and mixed phase occurs for crude oil, so that it is viscous to reduce crude oil
Degree and to the adsorptivity of rock；Microbial oil displacement method is made using microorganism and its metabolite cracking heavy hydrocarbon class and paraffin
The macromolecular of petroleum becomes small molecule, while being metabolized the gas for generating and dissolving in crude oil, to reduce viscosity of crude and increase original
The mobility of oil, and then achieve the purpose that improve oil recovery factor.
The steady of oil well can be seriously affected in the higher situation of moisture content in the crude oil of the well water or production that normally produce
Fixed production.But it might not illustrate to generate without crude oil in the reservoir of oil well bottom when the above problem occurs in oil well
There are deviation or shaft bottom and oil-water interfaces during at production for oil water relation understanding before this problem is possible as drilling well
Relative positional relationship have occurred and the reasons such as change caused by, therefore, it is necessary to carry out Potentials to the oil well for leading to the problem of this,
Detect whether it has the potentiality for continuing steady production.
In the prior art to the detection of oil well potentiality mainly by higher to the former Water in oil for being discharged or producing
Oil well carries out draining, is discharged and resumes production after a certain amount of water again in oil well and check production status at this time.If restoring
Normal production then determines that oil well has the potentiality for continuing steady production；Determine if it cannot return to normal production oil well do not have after
The potentiality of continuous steady production.
But the judgment basis of the detection method of the prior art is not comprehensive enough, the accuracy of judging result is poor.
The contents of the present invention are described below in conjunction with attached drawing is detailed, so that those skilled in the art can be more
The detailed understanding contents of the present invention.
Fig. 1 is the flow chart for the oil well potentiality detection method that one embodiment of the invention provides；Please refer to Fig. 1.The present embodiment
A kind of oil well potentiality detection method is provided, comprising:
The output object for obtaining target well mouth of oil well, detects the output object；
Wherein, the detection carried out to the output object includes: hydrogen sulfide content detection, crude content detects, natural gas contains
Amount detection and water energy detection；
Obtain the historical data of target oil well；
Wherein, the historical data includes: oil well relative position, well logging oil reservoir and oil well Reservoir Body scale；
Obtain the offset well production status of target oil well；
Wherein, the offset well production status includes: that offset well tires out oil production；
According to the testing result of the output object, the historical data and the offset well production status to the target oil well
Carry out comprehensive score；The comprehensive score is compared with standard scores, judges whether the target oil well has and continues to stablize
The potentiality of production.
Optionally, according to the testing result of the output object, the historical summary and the offset well production status to described
The method that target oil well carries out comprehensive score can be with are as follows:
According to the testing result of the preset output object, the historical summary and the offset well production status score value and
Its weighted value calculates the comprehensive score, and the comprehensive score is the score value and the weighted value sum of products of parameters.
Wherein, the weighted value of above-mentioned indices and score value can be set according to the actual situation, and standard scores can also be with
It is set as needed, the present embodiment does not further limit this.
For example, in an alternative embodiment, can assign respectively according to the actual situation hydrogen sulfide content 0-10/
Between different scores, assign its account for total score weighted value be 0.15；The different scores between crude content 0-10 are assigned, it is assigned and accounts for
The weighted value of total score is 0.25；The different scores between natural Gas content 0-10 are assigned, assigning its weighted value for accounting for total score is
0.2；The different scores between water energy 0-10 are assigned, assigning its weighted value for accounting for total score is 0.12；Oil well is assigned with respect to position
The different scores between 0-10 are set, assigning its weighted value for accounting for total score is 0.1；Assign the difference point between well logging oil reservoir 0-10
Number, assigning its weighted value for accounting for total score is 0.08；The different scores between oil well Reservoir Body scale 0-10 are assigned, it is total to assign its Zhan
The weighted value divided is 0.06；The different scores between the tired oil production 0-10 of offset well are assigned, assigning its weighted value for accounting for total score is
0.04.The specific score and its weighted value corresponding relationship of above-mentioned items are as shown in table 1 below.Established standards score is 6 points, when above-mentioned
Every comprehensive score is greater than 6 timesharing, it is believed that target oil well has the potentiality of steady production, is worth further draining it
Operation allows it to reproduce as early as possible；When the comprehensive score of above-mentioned items is less than 6 timesharing, it is believed that target oil well does not have stabilization
The potentiality of production, it is not necessary to further draining be carried out to it, to use manpower and material resources sparingly.
Table 1
Oil well potentiality detection method provided in this embodiment, it is raw according to the testing result, historical data and offset well of output object
Occurrence state carries out comprehensive score to target oil well, and the scoring is compared with standard scores, whether judges target oil well with this
With the potentiality for continuing steady production.The method of the present embodiment has carried out quantitative analysis to the indices for influencing oil well potentiality and has commented
Valence can accurately judge whether target oil well has potentiality according to the final appraisal results obtained, in actual production may be used
Strong operability reproduces success rate height by having potential oil well after judgement.
Optionally, the judgment method of the target oil well are as follows:
The production fluid for acquiring well mouth of oil well, judges the moisture content in the production fluid；
Wherein, if the moisture content of the production fluid is more than or equal to 70%, the oil well is target oil well；
If the moisture content of the production fluid, less than 70%, the oil well is not target oil well.
Specifically, showing that this oil well is high-water-cut oil-producing well, at this time oil well if moisture content is greater than 70% in produced liquid in oil well
It will be necessary to carry out further potentiality judgement to oil well, to find out the high reason of output content from oil well moisture content.
Optionally, the method for the hydrogen sulfide content detection are as follows: the output object is examined using hydrogen sulfide detector
It surveys, obtains the content of hydrogen sulfide in the output object.
Hydrogen sulfide detector is that the equipment of hydrogen sulfide content is commonly measured in production, can be in real-time display measured object
Hydrogen sulfide content, and can intuitively be displayed with data mode, tester is facilitated to record.
Optionally, the method for the crude content detection are as follows: oil composition detection is carried out to the output object of collection, is obtained
Obtain testing result.
Output object need to generally be sent into the laboratory of profession by output object progress oil composition detection and detected, examined
It is high to survey result reliability.But it can also be examined by the method for intuitive judgment to whether output object contains crude oil in production
It surveys, general when having black fluid or entirety partially black in output object, judgement contains oil composition.
Optionally, the method for the natural gas content detection are as follows: by being carried out a little to the gas componant in the output object
Combustion, judges whether there is natural gas；
Wherein, if the gas componant in the output object can light, there are natural gases for judgement；
If the gas componant in the output object cannot light, natural gas is not present in judgement.
Lighting for gas can directly be carried out in the gas vent of output object, if can light, and can be protected after lighting
Sustained combustion is demonstrate,proved, then is proved in the gas of output object containing natural gas.
Optionally, the method for the water energy detection are as follows: according to the unit pressure drop water yield or life of the target oil well
Plot of water cut during production judges the water energy of the target oil well.
Specifically, the detection of above-mentioned water energy can be carried out according to the concrete condition of oil well.
For example, can be judged using the index of unit pressure drop water yield for Pressure Curve in Oil Testing Well.Unit pressure drop water yield δ's
Calculation formula are as follows: δ=Q/ Δ P；Wherein, Q is stage water yield, and Δ P is stage pressure drop, i.e. Δ P is for original oil pressure P1 and currently
The difference of oil pressure P2.The unit of unit pressure drop water yield δ is m3/ MPa, the more big then water energy of unit pressure drop water yield is bigger,
Vice versa.
For the oil well gone into operation, can be judged according to the plot of water cut figure in its production process.Fig. 2 (a)-
Fig. 2 (c) is the plot of water cut figure in different production processes；(a)-Fig. 2 (c) referring to figure 2..The letter of oil well in process of production
Digit rate curve graph is generally divided into three types, i.e. the Wave type as shown in Fig. 2 (a), aqueous fluctuated；As shown in Fig. 2 (b)
Sudden water flooding type, moisture content is from low aqueous or anhydrous directly become full water；The step as shown in Fig. 2 (c) rises, aqueous
Rate from it is anhydrous or it is low it is aqueous become in it is aqueous, then keep a period of time, then it is therefrom aqueous become High water cut, then when being kept for one section
Between, eventually become full water.The energy size of the plot of water cut figure of above-mentioned three types be ordered as sudden water flooding type, Wave type,
Step ascending-type.
Optionally, the judgment method of the well logging oil reservoir are as follows: measured in the target oil well differently by logging tool
Gamma, resistivity and the interval transit time of layer；
Wherein, if the gamma and resistivity of the gamma on a certain stratum and the resistivity bottom adjacent compared with its are low, and when sound wave
Difference is got higher, then the stratum is oil reservoir.
Specifically, this step can measure oil well after the completion of drilling well, and measurement result is stored, with
For subsequent use.
Optionally, the judgment method of the oil well Reservoir Body scale are as follows: by the earthquake of target oil well engraving figure or
Dynamic holdup judges the Reservoir Body scale of the target oil well.
Specifically, the judgement of above-mentioned oil well Reservoir Body scale can be carried out according to the concrete condition of oil well.
For example, can be judged by the earthquake engraving figure of oil well for Pressure Curve in Oil Testing Well, when earthquake engraving figure is large-scale seam
It is advantage when the aggregate of hole, is unfavorable conditions when being a single beading.
For the oil well gone into operation, can be judged according to the dynamic holdup of oil well, wherein dynamic holdup can be with
Estimate by professional, can specifically be divided into dynamic holdup greater than 200,000 tons, ten thousand tons of 10-20, ten thousand tons of 5-10 and small
In 50,000 tons of four standards, dynamic holdup is bigger, and proof is more advantageous.
Optionally, the oil well relative position refers to: the vertical range of oil well bottom hole location and oil well construction highest point, oil
The judgement of well relative position is carried out on log sheet, and Fig. 3 is the schematic diagram of oil well relative position in the present invention；It please join
According to Fig. 3.
Wherein, 1 bottom hole location of oil well is obtained by the well data before production；
The oil well 1 constructs the position preparation method of highest point are as follows: emits earthquake to stratum by manufacture of intraocular microseism
Different transmitted waves can be presented in different bed boundaries for wave, the seismic wave, pass through calculating after ground receives back wave
It can be obtained the depth on different location stratum, minimum value is the position that the oil well 1 constructs highest point in the depth on the stratum
It sets.The depth of stratum of obtained different location is configured to picture as shown in Figure 3,1 bottom hole location of oil well and highest point in figure
The distance between d be oil well relative position.
Offset well tires out oil production and refers to Lin Jing from the oil-producing total amount to put into production so far, the present embodiment using 5000 tons as facing
Boundary's point, being greater than 5000 tons is advantage, is unfavorable conditions less than 5000 tons.
The embodiment judged using above-mentioned judgment method oil well potentiality is provided below, so that method of the invention is more
What is added should be readily appreciated that.
Embodiment one
The moisture content of certain production fluid of operation oil well is tested to be 82%, is greater than 70%, then the oil well is that potentiality detect
Target oil well.The data that oil production is tired out through transferring Lin Jing show that it is 6221 tons that the Lin Jing of the target oil well, which tires out oil production, transfer
The historical data of the oil well obtains that the oil well relative position is 32m, to have well logging oil reservoir, Anomalous character reserves be 120,000 tons, through pair
Output object is further measured, and has crude oil in hydrogen sulfide content 23ppm, output object, without gas component, water energy
For sudden water flooding type.
It is computed, comprehensive score is 6.44 points, is greater than 6 points of preset standard point, it was demonstrated that its potentiality with steady production.
After subsequent draining, oil well is smoothly reproduced.
Embodiment two
The moisture content of certain production fluid of operation oil well is tested to be 94%, is greater than 70%, then the oil well is that potentiality detect
Target oil well.The data that oil production is tired out through transferring Lin Jing show that it is 3251 tons that the Lin Jing of the target oil well, which tires out oil production, transfer
The historical data of the oil well obtains that the oil well relative position is 62m, to have well logging oil reservoir, Anomalous character reserves be 80,000 tons, through to production
Object is further measured out, is had crude oil in hydrogen sulfide content 16ppm, output object, is without gas component, water energy
Step ascending-type.
It is computed, comprehensive score is 5.62 points, is less than 6 points of preset standard point, it was demonstrated that it does not have the latent of steady production
Power, therefore, it is not necessary to subsequent job be carried out to it, to reduce production cost.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of oil well potentiality detection method characterized by comprising
The output object for obtaining target well mouth of oil well, detects the output object；
Wherein, the detection carried out to the output object includes: hydrogen sulfide content detection, crude content detection, the inspection of natural Gas content
It surveys and water energy detects；
Obtain the historical data of target oil well；
Wherein, the historical data includes: oil well relative position, well logging oil reservoir and oil well Reservoir Body scale；
Obtain the offset well production status of target oil well；
Wherein, the offset well production status includes: that offset well tires out oil production；
The target oil well is carried out according to the testing result of the output object, the historical data and the offset well production status
Comprehensive score；The comprehensive score is compared with standard scores, judges whether the target oil well has continuation steady production
Potentiality.
2. oil well potentiality detection method according to claim 1, which is characterized in that the judgment method of the target oil well
Are as follows:
The production fluid for acquiring well mouth of oil well, judges the moisture content in the production fluid；
Wherein, if the moisture content of the production fluid is more than or equal to 70%, the oil well is target oil well；
If the moisture content of the production fluid, less than 70%, the oil well is not target oil well.
3. oil well potentiality detection method according to claim 1, which is characterized in that the method for the hydrogen sulfide content detection
Are as follows: the output object is detected using hydrogen sulfide detector, obtains the content of hydrogen sulfide in the output object.
4. oil well potentiality detection method according to claim 1, which is characterized in that the method for the crude content detection
Are as follows: oil composition detection is carried out to the output object of collection, obtains testing result.
5. oil well potentiality detection method according to claim 1, which is characterized in that the method for the natural gas content detection
Are as follows: by lighting to the gas componant in the output object, judge whether there is natural gas；
Wherein, if the gas componant in the output object can light, there are natural gases for judgement；
If the gas componant in the output object cannot light, natural gas is not present in judgement.
6. oil well potentiality detection method according to claim 1, which is characterized in that the method for the water energy detection
Are as follows: according to the plot of water cut in the unit pressure drop water yield or production process of the target oil well, judge the target oil well
Water energy.
7. oil well potentiality detection method according to claim 1, which is characterized in that the judgment method of the well logging oil reservoir
Are as follows: gamma, resistivity and the interval transit time of Different Strata in the target oil well are measured by logging tool；
Wherein, if the gamma and resistivity of the gamma on a certain stratum and the resistivity bottom adjacent compared with its are low, and interval transit time becomes
Height, then the stratum is oil reservoir.
8. oil well potentiality detection method according to claim 1, which is characterized in that the judgement of the oil well Reservoir Body scale
Method are as follows: by the earthquake engraving figure or dynamic holdup of the target oil well, judge the Reservoir Body scale of the target oil well.
9. oil well potentiality detection method according to claim 1, which is characterized in that the oil well relative position refers to: oil
The vertical range of well bottom hole location and oil well construction highest point；
Wherein, the oil well bottom hole location is obtained by well data；
The position preparation method of oil well construction highest point are as follows: by manufacture of intraocular microseism to stratum Transmitted station, institute
Stating seismic wave, different transmitted waves can be presented in different bed boundaries, can be obtained after ground receives back wave by calculating
The depth on different location stratum is obtained, minimum value is the position of the oil well construction highest point in the depth on the stratum.
10. oil well potentiality detection method according to claim 1 to 9, which is characterized in that according to the output
The method that the testing result of object, the historical summary and the offset well production status carry out comprehensive score to the target oil well
Are as follows:
According to the testing result of the preset output object, the score value and its power of the historical summary and the offset well production status
Weight values calculate the comprehensive score, and the comprehensive score is the score value and the weighted value sum of products of parameters.
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