CN113756790A - Novel multi-section productivity evaluation method for oil and gas well - Google Patents
Novel multi-section productivity evaluation method for oil and gas well Download PDFInfo
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- 238000011156 evaluation Methods 0.000 title claims abstract description 27
- 238000005553 drilling Methods 0.000 claims abstract description 124
- 238000000034 method Methods 0.000 claims abstract description 38
- 238000003860 storage Methods 0.000 claims abstract description 31
- 238000009826 distribution Methods 0.000 claims abstract description 23
- 238000005070 sampling Methods 0.000 claims abstract description 22
- 238000004458 analytical method Methods 0.000 claims abstract description 16
- 230000035699 permeability Effects 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 6
- 239000002689 soil Substances 0.000 claims description 5
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- 239000000376 reactant Substances 0.000 claims description 3
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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
- E21B47/10—Locating fluid leaks, intrusions or movements
- E21B47/11—Locating fluid leaks, intrusions or movements using tracers; using radioactivity
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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
- 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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Abstract
The invention discloses a novel oil and gas well multi-section productivity evaluation method, which comprises the following steps: s1: primary drilling: drilling a well in an oil and gas storage area; s2: and (3) putting an indicator: in the process of one-time drilling, indicators with different indication characteristics are put in sections after the depth is increased by 5 m; s3: and (3) secondary drilling: after the indicator is put in sections, secondary drilling is carried out around the primary drilling; s4: sampling and analyzing: the secondary drilling adopts samples of depths of indicators with different indication characteristics to carry out indicator permeability analysis; s5: and (3) preparing a distribution map: and comprehensively evaluating the oil and gas storage area according to the position between the secondary drilling and the primary drilling and the indicator content in the sample taken by the secondary drilling. The invention can carry out comprehensive investigation on the oil gas storage area by carrying out primary drilling and indicator feeding and secondary drilling, and can accurately and conveniently carry out comprehensive evaluation on the oil gas storage rate, the recovery rate and the layer geology of each layer.
Description
Technical Field
The invention relates to the technical field of oil and gas exploitation, in particular to a novel method for evaluating the multi-section productivity of an oil and gas well.
Background
The oil gas resource is one of indispensable energy sources in daily life of people, is naturally generated from the earth crust or the earth surface, is economically worthy of exploitation, and is the sum of oil gas which can be technically exploited. Generally refers to the amount of oil and gas accumulation found and to be found in the formation estimated at a particular time. When oil and gas resources are exploited, the oil and gas resource storage area needs to be surveyed, so that the oil and gas resource distribution of different intervals at the exploration position is realized, and the exploitation rate is improved.
After massive search, the prior art is found, the publication number is CN110188503A, and the method for evaluating the capacity of the compact oil reservoir comprises the following steps: s1, assuming conditions; s2, establishing a volume fracturing horizontal well equivalent circuit model containing a plurality of cracks; s3, deducing a capacity equation of the unmodified area; s4, deducing a fracturing fluid transformation area capacity equation; s5, solving a volumetric fracturing horizontal well productivity model; s6, considering the influence of crack interference on productivity; s7, establishing a volume fracturing horizontal well steady-state capacity model considering fracture interference; s8, establishing a volume fracturing horizontal well steady-state productivity model considering the pressure drop of a horizontal well shaft on the basis of the step S7, and obtaining a compact oil productivity model comprehensively considering the seepage and absorption effects of fracturing fluid and the fracture interference; and S9, solving the capacity model obtained in the S8. The method for evaluating the capacity of the compact oil reservoir can more comprehensively and truly reflect the actual condition of the oil reservoir after the volume fracturing of the horizontal well, and the calculation result of the method is proved to have smaller error compared with other capacity calculation formulas through example calculation.
In conclusion, in the existing productivity evaluation process of oil and gas resources, the cracks in different intervals need to be surveyed, so that the recovery rate of the different intervals is determined, the drilling is limited by space, and the cracks and the oil and gas circulation directions of the different intervals are not convenient to detect by conventional detection equipment and detection modes, so that mining personnel can not conveniently master the distribution and the trend of the oil and gas resources, and the mining efficiency of the oil and gas resources can be influenced.
Disclosure of Invention
The invention aims to provide a novel method for evaluating the multi-section productivity of an oil and gas well, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a novel oil and gas well multi-section productivity evaluation method comprises the following steps:
s1: primary drilling: drilling a well in an oil and gas storage area;
s2: and (3) putting an indicator: in the process of one-time drilling, along with the increase of the drilling depth, indicators with different indication characteristics are put in a segmented mode after the depth is increased by 5 m;
s3: and (3) secondary drilling: after the indicators are put in sections, secondary drilling is carried out around the primary drilling, and the drilling depth corresponds to the depths of the indicators with different characteristics put in sections respectively:
s4: sampling and analyzing: the secondary drilling adopts samples of depths of indicators with different indication characteristics to carry out indicator permeability analysis;
s5: and (3) preparing a distribution map: and (4) according to the position between the secondary drilling and the primary drilling and the indicator content in the sample taken by the secondary drilling, making the sizes of the fractures of different intervals and the circulation rate graph, and comprehensively evaluating the oil and gas storage area.
Preferably, in S1 of the method for evaluating multi-stage productivity based on oil and gas wells:
the primary drilling position is the middle position of the oil and gas storage area, and the drilling depth is the bottom end of the oil and gas storage area;
in the process of drilling once, interval samples of different depths in the drilling well are collected, and the oil gas content generated by each interval is obtained for preliminarily evaluating the total oil gas content of the intervals of different depths.
Preferably, in S2 of the method for evaluating multi-stage productivity based on oil and gas wells:
after the drilling depth exceeds the soil layer, indicator with different indication characteristics is put in at intervals of 5m, after the indicator is put in sections, the stand is carried out for 3h, the indicator is waited to diffuse in the interval, and the liquid indicator diffuses in the rock stratum along with the liquid in the interval.
Preferably, in S3 of the method for evaluating multi-stage productivity based on oil and gas wells:
after the indicators with different indication characteristics are put in a segmented mode, standing for 1d, waiting for the liquid indicators to be diffused in different intervals completely, after standing is completed, performing secondary drilling around the position of the primary drilling, wherein the intervals between the secondary drilling and the primary drilling are 100m, 200m and 500m respectively;
the secondary drilling mode is the same as the primary drilling mode, a segmented drilling mode is adopted, the depth of the segmented drilling corresponds to the putting depth of the put indicator, and samples corresponding to depth intervals where different indicators are located are respectively collected in the secondary drilling process.
Preferably, in S4 of the method for evaluating multi-stage productivity based on oil and gas wells:
respectively detecting samples collected by secondary drilling, removing impurities and purifying the collected samples, separating the characteristics of the indicator in the samples, and calculating the proportion of the indicator in the samples and the types of the indicator in the samples;
in the process of analyzing samples at different depths of the secondary drilling, the oil and gas content in the samples is analyzed again to obtain the oil and gas content distribution relation;
the sample analysis procedure was as follows:
the first step is as follows: classifying and storing secondary drilling samples, wherein the samples are respectively 25Kg, and the samples are respectively divided into ten groups, and each group is 2.5 Kg;
the second step is that: respectively marking the samples, and sampling positions and sampling depths at the marked positions;
the third step: respectively crushing and diluting the samples, adding water into the crushed samples for dilution, respectively adding an indicator reactant into a single sample, recording the reflection characteristics, obtaining the characteristic strength of the indicator after reaction, and recording the reaction numerical value.
Preferably, in S5 of the method for evaluating multi-stage productivity based on oil and gas wells:
analyzing the content and the type of the indicators with different indication characteristics according to the sample collected in the secondary drilling in the S4 to obtain the fracture trend and the circulation rate of different intervals at the position of the primary drilling, analyzing the content and the trend of oil and gas in different intervals by combining the content of oil and gas in the sample of the secondary drilling, and making an oil and gas storage distribution and walking graph;
based on the data result obtained in the sample analysis process, the sampling distribution position and the primary drilling position are respectively drawn, the sample analysis result is marked on the sampling position, the samples at different depths are subjected to stacked marking, the planar fracture trend is obtained, and the fracture trend and the oil-gas storage distribution diagram at different depths are obtained by combining different sampling depths.
Compared with the prior art, the invention has the beneficial effects that: the invention collects and analyzes samples of different intervals through one-time drilling, and puts indicators with different indicating characteristics in a subsection mode in the one-time drilling process, after the indicators diffuse in the interval cracks of oil gas distribution, carries out secondary drilling, extracts samples of intervals corresponding to the indicators in the secondary drilling process to carry out analysis, not only can analyze the content of the indicators in the samples and be used for determining the trend and the circulation rate of the cracks in the oil gas storage intervals, but also can carry out secondary survey on the oil gas storage intervals and carry out more accurate estimation on the oil gas content, can estimate the oil gas distribution position and the storage amount stored in different intervals through the oil gas content proportion in the samples, is favorable for improving the production efficiency, and the indicators mark the flow direction and the circulation rate of the cracks in different intervals and can provide estimation basis for the recovery in the oil gas production process, the oil gas is opened more comprehensively.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention provides eight embodiments:
the first embodiment is as follows:
a novel oil and gas well multi-section productivity evaluation method comprises the following steps:
s1: primary drilling: drilling a well in an oil and gas storage area;
s2: and (3) putting an indicator: in the process of one-time drilling, along with the increase of the drilling depth, indicators with different indication characteristics are put in a segmented mode after the depth is increased by 5 m;
s3: and (3) secondary drilling: after the indicators are put in sections, secondary drilling is carried out around the primary drilling, and the drilling depth corresponds to the depths of the indicators with different characteristics put in sections respectively:
s4: sampling and analyzing: the secondary drilling adopts samples of depths of indicators with different indication characteristics to carry out indicator permeability analysis;
s5: and (3) preparing a distribution map: and (4) according to the position between the secondary drilling and the primary drilling and the indicator content in the sample taken by the secondary drilling, making the sizes of the fractures of different intervals and the circulation rate graph, and comprehensively evaluating the oil and gas storage area.
The samples of different intervals are collected and analyzed by one-time drilling, indicators with different indicating characteristics are put into the drilling well in a segmented mode in the one-time drilling process, after the indicators are spread in the interval cracks of oil and gas distribution, performing secondary drilling, extracting the sample of the interval corresponding to the indicator in the secondary drilling process for analysis, not only analyzing the content of the indicator in the sample, used for determining the trend and the circulation rate of the cracks in the oil and gas storage layer section, and can also carry out secondary investigation on the oil and gas storage section, the oil gas content is more accurately evaluated, the distribution position and the storage amount of the oil gas stored in different intervals can be estimated through the oil gas content ratio in the sample, the exploitation efficiency is favorably improved, and the indicator marks the flow direction and the circulation rate of the fractures in different intervals, so that evaluation basis can be provided for recovery in the oil and gas exploitation process, and oil and gas exploitation is more comprehensive.
Example two:
in S1 of the multi-stage productivity evaluation method based on oil and gas wells:
the primary drilling position is the middle position of the oil and gas storage area, and the drilling depth is the bottom end of the oil and gas storage area;
in the process of drilling once, interval samples of different depths in the drilling well are collected, and the oil gas content generated by each interval is obtained for preliminarily evaluating the total oil gas content of the intervals of different depths.
Example three:
in S2 of the multi-stage productivity evaluation method based on oil and gas wells:
after the drilling depth exceeds the soil layer, indicator with different indication characteristics is put in at intervals of 5m, after the indicator is put in sections, the stand is carried out for 3h, the indicator is waited to diffuse in the interval, and the liquid indicator diffuses in the rock stratum along with the liquid in the interval.
The indicator adopts fracturing fluid, the fracturing fluid is a heterogeneous unstable chemical system formed by a plurality of additives according to a certain proportion, and is working fluid used for fracturing and reforming an oil-gas reservoir.
Example four:
in S3 of the multi-stage productivity evaluation method based on oil and gas wells:
after the indicators with different indication characteristics are put in a segmented mode, standing for 1d, waiting for the liquid indicators to be diffused in different intervals completely, after standing is completed, performing secondary drilling around the position of the primary drilling, wherein the intervals between the secondary drilling and the primary drilling are 100m, 200m and 500m respectively;
the secondary drilling mode is the same as the primary drilling mode, a segmented drilling mode is adopted, the depth of the segmented drilling corresponds to the putting depth of the put indicator, and samples corresponding to depth intervals where different indicators are located are respectively collected in the secondary drilling process.
Example five:
in S4 of the multi-stage productivity evaluation method based on oil and gas wells:
respectively detecting samples collected by secondary drilling, removing impurities and purifying the collected samples, separating the characteristics of the indicator in the samples, and calculating the proportion of the indicator in the samples and the types of the indicator in the samples;
and in the process of analyzing the samples with different depths in the secondary drilling, analyzing the oil and gas content in the samples again to obtain the oil and gas content distribution relation.
The sample analysis procedure was as follows:
the first step is as follows: classifying and storing secondary drilling samples, wherein the samples are respectively 25Kg, and the samples are respectively divided into ten groups, and each group is 2.5 Kg;
the second step is that: respectively marking the samples, and sampling positions and sampling depths at the marked positions;
the third step: respectively crushing and diluting the samples, adding water into the crushed samples for dilution, respectively adding an indicator reactant into a single sample, recording the reflection characteristics, obtaining the characteristic strength of the indicator after reaction, and recording the reaction numerical value.
Example six:
in S5 of the multi-stage productivity evaluation method based on oil and gas wells:
analyzing the content and the type of the indicators with different indication characteristics according to the sample collected in the secondary drilling in the S4 to obtain the fracture trend and the circulation rate of different intervals at the position of the primary drilling, analyzing the content and the trend of oil and gas in different intervals by combining the content of oil and gas in the sample of the secondary drilling, and making an oil and gas storage distribution and walking graph;
based on the data result obtained in the sample analysis process, the sampling distribution position and the primary drilling position are respectively drawn, the sample analysis result is marked on the sampling position, the samples at different depths are subjected to stacked marking, the planar fracture trend is obtained, and the fracture trend and the oil-gas storage distribution diagram at different depths are obtained by combining different sampling depths.
Example seven:
the staged fracturing evaluation method comprises the following steps:
a first stage: a worker opens a fracturing well at the position of the existing oil and gas field and marks the fracturing well as a first fracturing well, after the first fracturing well is tunneled, an indicator is put into the first fracturing well, and the first fracturing well stands for waiting for the indicator to diffuse in a rock stratum;
two stages: the method comprises the steps of arranging a second fracturing well at the position of an oil and gas field, enabling the distance between the second fracturing well and the first fracturing well to be 300-plus-500 m, extracting a soil sample and a rock sample discharged in the drilling process of the second fracturing well, analyzing indicator components in the soil sample and the rock sample, respectively identifying oil, water and gas by using the indicators, displaying different characteristics, and analyzing by a worker according to a sampling sample of the second fracturing well to obtain the storage content in the oil and gas field.
The depth of establishing is bored to No. two fracturing wells and is established the degree of depth the same with a fracturing well, but synchronous used repeatedly of a fracturing well and No. two fracturing wells, to the oil gas field aassessment in the different degree of depth, according to a fracturing well and No. two fracturing wells of probing the different degree of depth, and put in the indicator in a fracturing well, it draws to establish the in-process exhaust sample to bore at No. two fracturing wells, the characteristic and the occupation proportion of indicator in the analysis sample, the realization is evaluateed the oil gas storage content of different degree of depth.
Example eight:
the multi-stage fracture evaluation method comprises the following steps:
before oil and gas production, the evaluation is divided into three stages, one: opening a fracturing well, putting an indicator into the fracturing well, standing for 1-3 days, waiting for the indicator to diffuse in the stratum chromatography at the depth of the bottom end of the fracturing well, and combining the indicator with the marked mineral deposit;
two stages: increasing the depth of the fracturing well, continuously drilling on the basis of primary drilling of the fracturing well, putting the indicator for the second time, standing for 1-3 days, and waiting for the indicator to diffuse in a stratum fracture at the depth of the fracturing well so that the indicator is combined with the marked mineral reserve;
three stages: and (4) continuously and equidistantly increasing the depth of the fracturing well, and putting an indicator at the deepened bottom of the fracturing well, so that the indicator and the fracturing well are diffused at different depths to carry out mineral deposit identification.
And before the mining stage, sampling according to the indicator throwing depth in the evaluation stage, and analyzing the mineral deposits marked by the indicators in the sampling sample to obtain mineral deposit distribution and reserve data.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (6)
1. A novel multi-section productivity evaluation method for oil and gas wells is characterized by comprising the following steps: the method for evaluating the multi-section productivity of the oil and gas well comprises the following steps:
s1: primary drilling: drilling a well in an oil and gas storage area;
s2: and (3) putting an indicator: in the process of one-time drilling, along with the increase of the drilling depth, indicators with different indication characteristics are put in a segmented mode after the depth is increased by 5 m;
s3: and (3) secondary drilling: after the indicators are put in sections, secondary drilling is carried out around the primary drilling, and the drilling depth corresponds to the depths of the indicators with different characteristics put in sections respectively:
s4: sampling and analyzing: the secondary drilling adopts samples of depths of indicators with different indication characteristics to carry out indicator permeability analysis;
s5: and (3) preparing a distribution map: and (4) according to the position between the secondary drilling and the primary drilling and the indicator content in the sample taken by the secondary drilling, making the sizes of the fractures of different intervals and the circulation rate graph, and comprehensively evaluating the oil and gas storage area.
2. The novel multi-segment productivity evaluation method for oil and gas wells as claimed in claim 1, wherein: in S1 of the multi-stage productivity evaluation method based on oil and gas wells:
the primary drilling position is the middle position of the oil and gas storage area, and the drilling depth is the bottom end of the oil and gas storage area;
in the process of drilling once, interval samples of different depths in the drilling well are collected, and the oil gas content generated by each interval is obtained for preliminarily evaluating the total oil gas content of the intervals of different depths.
3. The novel multi-segment productivity evaluation method for oil and gas wells as claimed in claim 1, wherein: in S2 of the multi-stage productivity evaluation method based on oil and gas wells:
after the drilling depth exceeds the soil layer, indicator with different indication characteristics is put in at intervals of 5m, after the indicator is put in sections, the stand is carried out for 3h, the indicator is waited to diffuse in the interval, and the liquid indicator diffuses in the rock stratum along with the liquid in the interval.
4. The novel multi-segment productivity evaluation method for oil and gas wells as claimed in claim 1, wherein: in S3 of the multi-stage productivity evaluation method based on oil and gas wells:
after the indicators with different indication characteristics are put in a segmented mode, standing for 1d, waiting for the liquid indicators to be diffused in different intervals completely, after standing is completed, performing secondary drilling around the position of the primary drilling, wherein the intervals between the secondary drilling and the primary drilling are 100m, 200m and 500m respectively;
the secondary drilling mode is the same as the primary drilling mode, a segmented drilling mode is adopted, the depth of the segmented drilling corresponds to the putting depth of the put indicator, and samples corresponding to depth intervals where different indicators are located are respectively collected in the secondary drilling process.
5. The novel multi-segment productivity evaluation method for oil and gas wells as claimed in claim 1, wherein: in S4 of the multi-stage productivity evaluation method based on oil and gas wells:
respectively detecting samples collected by secondary drilling, removing impurities and purifying the collected samples, separating the characteristics of the indicator in the samples, and calculating the proportion of the indicator in the samples and the types of the indicator in the samples;
in the process of analyzing samples at different depths of the secondary drilling, the oil and gas content in the samples is analyzed again to obtain the oil and gas content distribution relation;
the sample analysis procedure was as follows:
the first step is as follows: classifying and storing secondary drilling samples, wherein the samples are respectively 25Kg, and the samples are respectively divided into ten groups, and each group is 2.5 Kg;
the second step is that: respectively marking the samples, and sampling positions and sampling depths at the marked positions;
the third step: respectively crushing and diluting the samples, adding water into the crushed samples for dilution, respectively adding an indicator reactant into a single sample, recording the reflection characteristics, obtaining the characteristic strength of the indicator after reaction, and recording the reaction numerical value.
6. The novel multi-segment productivity evaluation method for oil and gas wells as claimed in claim 1, wherein: in S5 of the multi-stage productivity evaluation method based on oil and gas wells:
analyzing the content and the type of the indicators with different indication characteristics according to the sample collected in the secondary drilling in the S4 to obtain the fracture trend and the circulation rate of different intervals at the position of the primary drilling, analyzing the content and the trend of oil and gas in different intervals by combining the content of oil and gas in the sample of the secondary drilling, and making an oil and gas storage distribution and walking graph;
based on the data result obtained in the sample analysis process, the sampling distribution position and the primary drilling position are respectively drawn, the sample analysis result is marked on the sampling position, the samples at different depths are subjected to stacked marking, the planar fracture trend is obtained, and the fracture trend and the oil-gas storage distribution diagram at different depths are obtained by combining different sampling depths.
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650207A (en) * | 2012-05-09 | 2012-08-29 | 中国石油天然气股份有限公司 | Interwell layered tracking monitoring method |
| CN104265259A (en) * | 2014-08-07 | 2015-01-07 | 员增荣 | Capacity tracking and evaluating method |
| CN104514558A (en) * | 2013-10-07 | 2015-04-15 | 天津大港油田圣达科技有限公司 | Trace element detection method among wells |
| CN106574496A (en) * | 2014-06-23 | 2017-04-19 | 查尔斯斯塔克德雷珀实验室有限公司 | Injection well identification using tracer particles |
| CN107740690A (en) * | 2017-11-07 | 2018-02-27 | 朱玉景 | A kind of inter-well test method using solid tracers |
| CN108301823A (en) * | 2018-01-19 | 2018-07-20 | 北京捷贝通石油技术股份有限公司 | A method of identification reservoir hydrocarbons dessert |
| CN108561120A (en) * | 2017-12-18 | 2018-09-21 | 北京捷贝通石油技术股份有限公司 | A method of test Oil ＆ Gas Productivity section |
| CN108825226A (en) * | 2018-07-02 | 2018-11-16 | 四川圣诺油气工程技术服务有限公司 | A kind of method and device for assessing gas production after pressure using chemical tracer |
| CN109538193A (en) * | 2019-01-28 | 2019-03-29 | 西南石油大学 | A kind of runner phenetic analysis method applied to fracture-pore reservoir |
| CN110374583A (en) * | 2019-04-09 | 2019-10-25 | 延安顺盈石油工程技术服务有限公司 | A kind of oil field oil water gas well indicator tracking evaluating production capacity method |
| CN111177871A (en) * | 2018-10-23 | 2020-05-19 | 中国石油化工股份有限公司 | Method for constructing injection-production space structure well pattern of fracture-cavity type oil reservoir |
| CN111622751A (en) * | 2020-06-05 | 2020-09-04 | 苏州冠德能源科技有限公司 | Shale gas dessert evaluation method based on gas carbon isotopes |
| US20200348445A1 (en) * | 2019-04-30 | 2020-11-05 | Conocophillips Company | Reservoir modeling for unconventional reservoirs |
| CN112360440A (en) * | 2020-10-27 | 2021-02-12 | 陕西华晨石油科技有限公司 | Water injection well array gamma logging device and method for performing intrastratal subdivision logging |
-
2021
- 2021-09-07 CN CN202111042166.6A patent/CN113756790B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650207A (en) * | 2012-05-09 | 2012-08-29 | 中国石油天然气股份有限公司 | Interwell layered tracking monitoring method |
| CN104514558A (en) * | 2013-10-07 | 2015-04-15 | 天津大港油田圣达科技有限公司 | Trace element detection method among wells |
| CN106574496A (en) * | 2014-06-23 | 2017-04-19 | 查尔斯斯塔克德雷珀实验室有限公司 | Injection well identification using tracer particles |
| CN104265259A (en) * | 2014-08-07 | 2015-01-07 | 员增荣 | Capacity tracking and evaluating method |
| CN107740690A (en) * | 2017-11-07 | 2018-02-27 | 朱玉景 | A kind of inter-well test method using solid tracers |
| CN108561120A (en) * | 2017-12-18 | 2018-09-21 | 北京捷贝通石油技术股份有限公司 | A method of test Oil ＆ Gas Productivity section |
| CN108301823A (en) * | 2018-01-19 | 2018-07-20 | 北京捷贝通石油技术股份有限公司 | A method of identification reservoir hydrocarbons dessert |
| CN108825226A (en) * | 2018-07-02 | 2018-11-16 | 四川圣诺油气工程技术服务有限公司 | A kind of method and device for assessing gas production after pressure using chemical tracer |
| CN111177871A (en) * | 2018-10-23 | 2020-05-19 | 中国石油化工股份有限公司 | Method for constructing injection-production space structure well pattern of fracture-cavity type oil reservoir |
| CN109538193A (en) * | 2019-01-28 | 2019-03-29 | 西南石油大学 | A kind of runner phenetic analysis method applied to fracture-pore reservoir |
| CN110374583A (en) * | 2019-04-09 | 2019-10-25 | 延安顺盈石油工程技术服务有限公司 | A kind of oil field oil water gas well indicator tracking evaluating production capacity method |
| US20200348445A1 (en) * | 2019-04-30 | 2020-11-05 | Conocophillips Company | Reservoir modeling for unconventional reservoirs |
| CN111622751A (en) * | 2020-06-05 | 2020-09-04 | 苏州冠德能源科技有限公司 | Shale gas dessert evaluation method based on gas carbon isotopes |
| CN112360440A (en) * | 2020-10-27 | 2021-02-12 | 陕西华晨石油科技有限公司 | Water injection well array gamma logging device and method for performing intrastratal subdivision logging |
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