CN102562051B - Method for processing original data of gas survey chart - Google Patents
Method for processing original data of gas survey chart Download PDFInfo
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- CN102562051B CN102562051B CN201110459934.8A CN201110459934A CN102562051B CN 102562051 B CN102562051 B CN 102562051B CN 201110459934 A CN201110459934 A CN 201110459934A CN 102562051 B CN102562051 B CN 102562051B
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000012545 processing Methods 0.000 title abstract description 8
- 238000012360 testing method Methods 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000013507 mapping Methods 0.000 claims description 36
- 230000015572 biosynthetic process Effects 0.000 claims description 19
- 238000013461 design Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 8
- 238000004364 calculation method Methods 0.000 abstract description 2
- 230000001174 ascending effect Effects 0.000 abstract 1
- 238000012958 reprocessing Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 86
- 150000002430 hydrocarbons Chemical class 0.000 description 10
- 239000004215 Carbon black (E152) Substances 0.000 description 8
- 229930195733 hydrocarbon Natural products 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013316 zoning Methods 0.000 description 1
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Abstract
The invention provides a method for processing original data of a gas survey plate, which comprises the following steps: a method of processing gas chart raw data, comprising the steps of: step a, obtaining a logging gas measurement value and an oil testing result of a gas reservoir oil testing completion well; step b, carrying out arithmetic mean on the gas measurement values between the half-range point of the ascending section and the half-range point of the descending section of the gas measurement value curve of the well section to obtain an arithmetic mean value; step c, substituting the calculated arithmetic mean value into a calculation formula of each gas measurement plate to calculate horizontal and vertical coordinate values; step d, substituting the obtained horizontal and vertical coordinate values into each gas measurement plate by combining the oil testing result; and e, dividing a gas-divided region and a water-containing region of the reservoir according to the distribution condition of each data point in the gas logging plate, thereby establishing the gas logging plate. The invention can more fully capture the effective information reflected by the gas measurement value and objectively and truly know the reservoir stratum by reprocessing the original data of the gas measurement plate.
Description
Technical field
The invention belongs to the application of natural gas gas mapping version, relate to a kind of method processing gas mapping version initial data, by the process again to gas mapping version initial data, the effective information of Gas Logging Value reflection can be caught more fully, objective, be familiar with reservoir truly.
Background technology
In natural gas exploration and development process, gas mapping version is the important means of understanding properties of fluid in bearing stratum, but the practical effect of the method is not ideal.Specifically, in gas mapping version use procedure in the past, the gas usually choosing display well section surveys (such as, TG, C
1, C
2, C
3, iC
4, nC
4, iC
5, nC
5) peak carries out plate original data processing, but there is following problem in this method:
1, adopting gas survey peak (as shown in Figure 1) to carry out plate data processing makes the randomness of explanation results stronger.
2, total hydrocarbon (TG) and the component (C of gas measurement equipment
1, C
2, C
3, iC
4, nC
4, iC
5, nC
5) analytical cycle difference.General total hydrocarbon is analyze continuously, and component then has certain analytical cycle.Therebetween time difference may cause surveying display well section at identical gas, and total hydrocarbon distinguishes corresponding different well depth from the analysis peak of component.
3, the non-reservoir porosity of reservoir relative is higher, and very fast when boring, and under this condition, the error of analytical cycle is more obvious.
4, the initial data of gas mapping version is got to the gas survey maximum value of display well section, the plate data point distribution made is comparatively discrete, is difficult to the air water region dividing reservoir.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of method processing gas mapping version initial data, this method substitutes into each design formulas of gas mapping version again after carrying out arithmetic average by Gas Logging Value gas being surveyed to display well section, can determine the gas district of reservoir, water aquifer preferably.
According to an aspect of the present invention, provide a kind of method processing gas mapping version initial data, comprise the steps: step a, obtain well logging Gas Logging Value and formation testing result that gas reservoir formation testing terminates well; Step b, carries out arithmetic average by the Gas Logging Value between the half range point of the Gas Logging Value curve ascent stage of display well section and the half range point reducing section, obtains arithmetic mean of instantaneous value; Step c, the design formulas arithmetic mean of instantaneous value calculated being substituted into each gas mapping version calculates horizontal stroke, ordinate value; Steps d, in conjunction with formation testing achievement, substitutes into each gas mapping version by the horizontal stroke of acquisition, ordinate value; Step e, according to the distribution situation of each data point in gas mapping version, draws Fen Qi district and the water aquifer of reservoir, thus sets up gas mapping version.
If there is the Tibetan formation testing of many implications to terminate well, then before step e, many oral examination oil is terminated to gas detection logging Data duplication step a, b, c, d of well.
Wherein, described Gas Logging Value comprises TG, C of display well section
1, C
2, C
3, iC
4, nC
4, iC
5, nC
5value.
Wherein, choose the ascent stage in display well section Gas Logging Value curve after comprehensively analyzing in conjunction with geology, engineering parameter and reduce section.
Accompanying drawing explanation
By the description carried out exemplary embodiment below in conjunction with accompanying drawing, above and other object of the present invention and feature will become apparent, wherein:
Fig. 1 is the schematic diagram of the method for the peak value choosing Gas Logging Value in prior art;
Fig. 2 is the schematic diagram of the average getting display well section according to an embodiment of the invention;
Fig. 3 is the flow chart of gas mapping version initial data average facture according to an exemplary embodiment of the present invention;
Fig. 4 is the weight hydrocarbon ratio plate adopting method of the present invention to obtain;
Fig. 5 is the relative ratio plate adopting method of the present invention to obtain;
Fig. 6 is the relative mass plate adopting method of the present invention to obtain;
Fig. 7 is the total hydrocarbon-component ratios plate adopting method of the present invention to obtain.
Detailed description of the invention
The present invention is after mainly by the total hydrocarbon of gas detection logging, component data, the Information integration such as matter, engineering and formation testing is analyzed in combination, the gas lining average extracting display well section draws gas mapping version, then divides gas district, the water aquifer of reservoir according to the regularity of distribution of data point in plate; The Gas Logging Value gas of stepout well being surveyed display well section carries out being averaged process and substitutes into the gas mapping version set up afterwards above and can judge that whether reservoir is moisture.
Gas mapping version initial data average processing method of the present invention is described with reference to the accompanying drawings.
Fig. 2 is the schematic diagram of the average getting display well section according to an embodiment of the invention.Fig. 3 is the flow chart of gas mapping version initial data average facture according to an exemplary embodiment of the present invention.
As shown in Figure 3, in step S310, obtain gas measuring logging data and oil test data that gas reservoir formation testing terminates well, described gas measuring logging data and oil test data are mainly included in the Gas Logging Value recorded in drilling process and (comprise total hydrocarbon in gas logging and component value, that is, TG, C
1, C
2, C
3, iC
4, nC
4, iC
5, nC
5etc. each entry value) and each Gas Logging Value correspond to gas district or water aquifer, i.e. formation testing result.In the Gas Logging Value curve shown in Fig. 1 and Fig. 2, for simplicity, only show total hydrocarbon (TG) Gas Logging Value curve and C
1gas Logging Value curve, wherein solid line represents the percentage shared by TG, and dotted line represents C
1shared percentage.
In step s 320, the Gas Logging Value that the process of average facture obtains is adopted.In this step, arithmetic average treatment is made in conjunction with geology, the Gas Logging Value of engineering parameter to logging presentation well section (Gas Logging Value raises and reduces the well section between half range point).
Particularly, as depicted in figs. 1 and 2, in the well section of about degree of depth 2340m, Gas Logging Value has significantly rising and significantly declines, the data processing method of prior art only chooses the formulae discovery that peak-data substitutes into each gas mapping version, and utilizes result of calculation to draw all kinds of gas mapping version.But, in step S320 of the present invention, calculate (corresponding to well depth 2341.00 ~ 2346.00m in figure) arithmetic mean of instantaneous value between the rising half range point of the gas logging curve of display well section and decline half range point, instead of only choose the data value of peak.Specifically, the maximum value at the summit place that what prior art was chosen is between ascent stage and descending branch, and the present invention is the value obtained after the data between the half range of ascent stage point (corresponding to 2341.00m place in figure) and the half range point (2346.00m corresponding in figure) of descending branch are carried out arithmetic average.Although only show the Gas Logging Value curve of TG and C1 in Fig. 2, and do not mean that method of the present invention only processes this two kinds of data, but also can process other gas survey data as required, such as, C
2, C
3, iC
4, nC
4, iC
5, nC
5etc. each entry value.
In step S330, after the total hydrocarbon obtained, component value are substituted into the horizontal stroke of each gas mapping version, ordinate design formulas, obtain horizontal, ordinate value after arithmetic average process.
In step S340, in conjunction with formation testing achievement, utilize the horizontal stroke, the ordinate value drafting gas mapping version that obtain.
More particularly, determine that obtained horizontal stroke, ordinate value correspond to gas district or pool in conjunction with formation testing achievement, then described horizontal stroke, ordinate value are substituted into gas mapping version, and divide gas district and the water aquifer of reservoir according to the distribution situation of each data value in plate, thus set up gas mapping version.For C1, for a certain C1 arithmetic mean of instantaneous value of acquisition, determine arithmetic mean of instantaneous value correspondence and gas district or the pool of this C1 in conjunction with formation testing achievement, determine the corresponding expression symbol of data point in gas mapping version thus.For Fig. 4-Fig. 7, if data point corresponds to gas district, then represent with triangle, if data point corresponds to water aquifer, then represent with square.
In step S350, divide gas district and water aquifer according to the distribution situation of each value in gas mapping version, thus set up gas mapping version.
In practice, in order to more fully reflect the true distribution situation of gas reservoir, repeatedly formation testing may be needed and measure Gas Logging Value, therefore step S310 to S330 may need repeatedly, then comprehensively draw gas mapping version according to repeatedly formation testing achievement and acquisition arithmetic mean of instantaneous value, thus divide gas district and water aquifer according to multiple formation testing result.
Fig. 4 to Fig. 7 is the gas mapping version data point distribution situation obtained after adopting method process initial data of the present invention to Anyue block palpus two gas reservoirs, wherein triangular data points represents formation testing result is gas district, it is water aquifer that square data points represents formation testing result, light areas is the gas district divided according to data point distribution situation, and darker regions is the water aquifer divided according to data point distribution situation.
By facts have proved of Anyue block, the plate data point distribution that the prior art adopting gas to survey peak is made is comparatively discrete, and reservoir gas district, water aquifer obscure together mutually, more difficult zoning.Adopt method of the present invention to use average, can effectively reduce the randomness taking single-point peak.In acquisition gas mapping version, the data point of reservoir gas district, water aquifer distributes separately and comparatively assembles, and gas district, border, water aquifer are comparatively obvious.
Therefore, the present invention can catch the effective information of Gas Logging Value reflection more fully, objective, be familiar with reservoir truly, provides basis for estimation accurately for judging that whether reservoir is moisture.
Although illustrate and describe exemplary embodiment of the present invention by reference to the accompanying drawings, but what those skilled in the art should understand that is, when not departing from by the principle of the present invention of claim and its scope of equivalents thereof and spirit, multiple modification can be carried out to exemplary embodiment.
Claims (4)
1. process a method for gas mapping version initial data, comprise the steps:
Step a, obtains well logging Gas Logging Value and formation testing result that gas reservoir formation testing terminates well;
Step b, chooses the ascent stage comprising peak point in display well section Gas Logging Value curve and reduces section, the Gas Logging Value between the half range of described ascent stage point and the half range point reducing section being carried out arithmetic average, obtains arithmetic mean of instantaneous value;
Step c, the design formulas arithmetic mean of instantaneous value calculated being substituted into each gas mapping version calculates horizontal stroke, ordinate value;
Steps d, in conjunction with formation testing achievement, substitutes into each gas mapping version by the horizontal stroke of acquisition, ordinate value;
Step e, according to the distribution situation of each data point in gas mapping version, draws Fen Qi district and the water aquifer of reservoir, thus sets up gas mapping version.
2. the method for claim 1, if there is the Tibetan formation testing of many implications to terminate well, then before step e, terminates gas detection logging Data duplication step a, b, c, d of well to many oral examination oil.
3. method as claimed in claim 1 or 2, wherein, described Gas Logging Value comprises TG, C of display well section
1, C
2, C
3, iC
4, nC
4, iC
5, nC
5value.
4. method as claimed in claim 1 or 2, wherein, chooses the ascent stage in display well section Gas Logging Value curve and reduce section in conjunction with geology, engineering parameter after comprehensively analyzing.
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| CN201110459934.8A CN102562051B (en) | 2011-12-31 | 2011-12-31 | Method for processing original data of gas survey chart |
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|---|---|---|---|---|
| CN102900433B (en) * | 2012-10-31 | 2015-09-23 | 中国石油集团川庆钻探工程有限公司 | Method for judging reservoir fluid by establishing gas logging chart through discriminant analysis |
| CN103953336A (en) * | 2014-05-15 | 2014-07-30 | 中国石油集团渤海钻探工程有限公司 | Evaluation method for judging water-oil-gas distribution in petroleum and natural gas reservoir stratum |
| CN105041305B (en) * | 2015-06-18 | 2019-06-14 | 中海油能源发展股份有限公司 | A kind of oil gas water identification method to be crossed based on physical property and gas detection logging parameter |
| CN105156104B (en) * | 2015-06-18 | 2019-06-14 | 中海油能源发展股份有限公司 | A kind of gas detection logging oil gas water identification method based on parameter reconstruct |
| CN105631529B (en) * | 2015-10-28 | 2020-05-26 | 中国石油化工股份有限公司 | Method for predicting water breakthrough time of boundary water gas reservoir |
| CN108798657B (en) * | 2018-05-31 | 2021-07-23 | 中国石油集团川庆钻探工程有限公司 | Logging interpretation method based on drilling fluid logging parameter gas measurement value |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1381734A (en) * | 2002-03-28 | 2002-11-27 | 王振信 | Method for logging well by saturability of C/H ratio to stratum fluid |
| CN1743872A (en) * | 2005-09-26 | 2006-03-08 | 大庆油田有限责任公司 | Multi-parameter dimension-reducing oil-gas-water-layer identifying method |
| CN101408102A (en) * | 2008-07-23 | 2009-04-15 | 天津陆海石油设备***工程有限责任公司 | Total hydrocarbon intelligent logging system |
| CN101718878A (en) * | 2009-12-15 | 2010-06-02 | 中国石油集团川庆钻探工程有限公司 | Method for evaluating reservoir by using nuclear magnetic resonance logging interpretation chart |
| EP1719875B1 (en) * | 2000-05-23 | 2010-08-11 | Saudi Arabian Oil Company | Pyrolytic oil-productivity index method for predicting reservoir rock and oil characteristics |
| CN101950034A (en) * | 2010-08-16 | 2011-01-19 | 中国石油天然气股份有限公司 | Natural potential curve baseline drift correction method for seismic inversion |
| CN101949832A (en) * | 2010-09-02 | 2011-01-19 | 西安交通大学 | Fourier transform infrared spectrum distortion identifying and processing method |
-
2011
- 2011-12-31 CN CN201110459934.8A patent/CN102562051B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1719875B1 (en) * | 2000-05-23 | 2010-08-11 | Saudi Arabian Oil Company | Pyrolytic oil-productivity index method for predicting reservoir rock and oil characteristics |
| CN1381734A (en) * | 2002-03-28 | 2002-11-27 | 王振信 | Method for logging well by saturability of C/H ratio to stratum fluid |
| CN1743872A (en) * | 2005-09-26 | 2006-03-08 | 大庆油田有限责任公司 | Multi-parameter dimension-reducing oil-gas-water-layer identifying method |
| CN101408102A (en) * | 2008-07-23 | 2009-04-15 | 天津陆海石油设备***工程有限责任公司 | Total hydrocarbon intelligent logging system |
| CN101718878A (en) * | 2009-12-15 | 2010-06-02 | 中国石油集团川庆钻探工程有限公司 | Method for evaluating reservoir by using nuclear magnetic resonance logging interpretation chart |
| CN101950034A (en) * | 2010-08-16 | 2011-01-19 | 中国石油天然气股份有限公司 | Natural potential curve baseline drift correction method for seismic inversion |
| CN101949832A (en) * | 2010-09-02 | 2011-01-19 | 西安交通大学 | Fourier transform infrared spectrum distortion identifying and processing method |
Non-Patent Citations (1)
| Title |
|---|
| 杨立平等.气测录井资料解释.《现代综合录井技术基础及应用》.石油工业出版社,2008,(第1版),97-100. * |
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Effective date of registration: 20200922 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Address before: 610051 No. 1, section 3, Qing Lu, Chengdu, Sichuan Patentee before: CNPC Chuanqing Drilling Engineering Co.,Ltd. |
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