CN101183154A - Geological logging explanation evaluating method - Google Patents
Geological logging explanation evaluating method Download PDFInfo
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- CN101183154A CN101183154A CNA2007101586551A CN200710158655A CN101183154A CN 101183154 A CN101183154 A CN 101183154A CN A2007101586551 A CNA2007101586551 A CN A2007101586551A CN 200710158655 A CN200710158655 A CN 200710158655A CN 101183154 A CN101183154 A CN 101183154A
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Abstract
The present invention relates to a geological logging interpretation evaluation method for petroleum drilling exploration. The method is supported by borehole information and collects drilling time, rock sample hydrocarbon features, fluorescent characteristics, a gas logging parameter, mud groove face situations, a reservoir electric measurement parameter and totally six kinds twenty parameters which are stored in the corresponding tables. All the parameters are endowed with specific score using scoring mode. According to the parameters information, geological analysis experts work out an interpretation evaluation result which is used for guiding field operators to judge the fluid property of underground reservoirs. So the object of hydrocarbon zone protection and drilling safety is achieved and accurate and reliable geological parameters are provided in time, which provides a basis for the establishment of the next working measures and construction proposal. The geological interpretation evaluation method provided by the present invention analyzes and defines the parameters which reflect reservoir characteristic and liquid property, so the qualitative data is transformed to quantitative or semi-quantitative explanation. In addition, the single evaluation is transformed to multi parameters comprehensive analysis evaluation, so the reservoir interpretation evaluation result or conclusion is more scientific and reasonable.
Description
Technical field:
The present invention relates to a kind of geological analysis of petroleum drilling exploration engineering and method that hydrocarbon zone interpretation is estimated of being used for.
Background technology:
Development along with oil field prospecting development technology technology, the well logging technology has also obtained new raising and development, but the promotion and application of various new technologies must be support with conventional geological logging, have only by observing data in kind such as landwaste, rock core, could understand and grasp the rock signature and the oil-gaws bearing character of underground oil and gas reservoir preferably.At present, the geological logging explanation evaluating method of field by using can only be made qualitative conclusions usually, can not make quantitative interpretation accurately and evaluation to the lithology and the oil-gaws bearing character of oil and gas reservoir, thereby have influence on the raising of oil-field development and oil mining effect.
Summary of the invention:
The object of the present invention is to provide a kind of geologic information and the quantitatively accurate interpretation and evaluation reservoir lithology of hydrocarbon zone feature of various oily types and geological logging explanation evaluating method of obtaining according to mud logging operation of oil-gaws bearing character.
Technical scheme of the present invention is as follows.
This kind explanation evaluating method is to be support with pit shaft information, when collect boring, rock core (landwaste) oil-gaws bearing character, fluorescent characteristics (fluorescence directly shines, soaking solution), gas surveys feature, mud groove face situation, 20 parameters of reservoir electrical measurement parameter 6 classes, be stored in the corresponding form, adopt the mode of keeping the score to give concrete score value then each parameter item; The above-mentioned parameter information that the geological analysis expert provides according to well logging hydrocarbon zone comprehensive interpretation and evaluation system and central information storehouse; make the quantitative interpretation evaluation conclusion; in order to instruct the field staff to judge the subsurface reservoir fluid properties; reach the target of protection hydrocarbon zone and safety drilling; on the other hand can be in time for the client provide geologic parameter accurately and reliably, for the formulation of work measure of following step or arrangement and method for construction provides foundation.
The implementation step and the technical essential of this method are as follows:
1, be support with pit shaft information, when collect boring, rock sample (rock core, landwaste) oil-gaws bearing character, fluorescent characteristics (fluorescence directly shines, soaking solution), gas surveys parameter, mud groove face situation, 20 parameters of reservoir electrical measurement parameter 6 classes, be stored in respectively in the corresponding form, make initial parameter reach standardization, scientific; 2, according to dissimilar (thin oil, viscous crude, the high oil that coagulates) reservoir characteristic parameter standard of keeping the score, employing keep the score mode with the data of parameters be divided into different during scope or special category, and represented with the numerical value between 0 to 10, quantitative data is unified on the identical score value with qualitative data (as yellow, brown etc.), differentiates and lay the foundation for quoting computing machine; 3, utilize the reservoir characteristic parameter data of keeping the score, with resulting score value addition, compare with individual features index highest score sum, the number percent that draws is as the index of this layer judgement, the evaluation conclusion of making explanations; Data according to statistics, determine that percent value divides index and be: be payzone greater than 55%, less than 55% be non-payzone, further segmentation then is:
(1), when percent value greater than 55% the time:
Than score value more than 3 minutes, the landwaste profile is more than 6 minutes during brill, and dripping was interpreted as oil reservoir more than 5 minutes;
Than score value below 3 minutes, the landwaste profile is below 6 minutes during brill, and dripping is interpreted as low pay sand more than 5 minutes;
Drip and be interpreted as the low yield oil-water common-layer below 5 minutes.
(2), when percent value less than 55% the time, general solution is interpreted as non-payzone:
Than score value more than 4 minutes, dripping was interpreted as water layer below 3 minutes during brill; Than score value more than 4 minutes, the landwaste profile is interpreted as doing layer below 4 minutes during brill.
(3), when percent value less than 55% the time, but oil bearing grade, contrast rank, gas survey several indexs such as total hydrocarbon wherein one be just can differentiate in 10 minutes to be hydrocarbon zone.
4,, instructing on-the-spot wellbore construction with during boring well logging, and for the client in time provides accurately, reliable geologic parameter, for the formulation of work measure of following step or arrangement and method for construction provides foundation according to the interpretation and evaluation conclusion.
Geological logging explanation evaluating method provided by the invention is by defining the parameter analysis of reflection reservoir characteristic and fluid properties, make qualitative data dissolve and release transformation to quantitative or sxemiquantitative, and change to a plurality of parametric synthesis assays by single evaluation, can make RESERVOIR INTERPRETATION evaluation achievement or conclusion plant more, rationalize, improve the ageing and policy-making of RESERVOIR INTERPRETATION appraisal simultaneously, helped carrying out smoothly of exploration of oil and gas field, exploitation.
Description of drawings:
Fig. 1 is information processing of the present invention and workflow block diagram.Fig. 2, Fig. 3, Fig. 4 are respectively thin oil, viscous crude, height and coagulate oily reservoir characteristic parameter scoring table.
Embodiment:
Illustrated below in conjunction with accompanying drawing:
Collect 20 parameters of 6 classes according to aforementioned implementation step and technical essential, list form in, the specific embodiment subitem is kept the score one by one, make comprehensive interpretation and evaluation conclusion according to score value at last according to the standard of keeping the score that Fig. 2, Fig. 3, Fig. 4 provide.Embodiment: certain well 2712～2720m well section is collected 16 parameters altogether, the sum total of parameters score value is 115 minutes, and these 16 index best result matter sum totals are 160 minutes, calculating its ratio is 115: 160=71%, be interpreted as oil reservoir, produce oil is 12.8 tons during formation testing, shows the interpretation and evaluation conclusion accurately and reliably.
Claims (1)
1. geological logging explanation evaluating method, it is characterized in that: this method is to be support with pit shaft information, when collect boring, rock sample oil-gaws bearing character, fluorescent characteristics, gas survey parameter, mud groove face situation, 20 parameters of reservoir electrical measurement parameter 6 classes, be stored in the corresponding form, adopt the mode of keeping the score to give concrete score value then each parameter item; The above-mentioned parameter information that the geological analysis expert provides according to well logging hydrocarbon zone comprehensive interpretation and evaluation system and central information storehouse, the evaluation conclusion of making explanations, in order to instruct the field staff to judge the subsurface reservoir fluid properties, reach the target of protection hydrocarbon zone and safety drilling, on the other hand can be in time for the client provide geologic parameter accurately and reliably, for the formulation of work measure of following step or arrangement and method for construction provides foundation;
The implementation step and the technical essential of this method are as follows:
(1), be support with pit shaft information, collect when boring, rock sample oil-gaws bearing character, fluorescent characteristics, gas survey parameter, mud groove face situation, 20 parameters of reservoir electrical measurement parameter 6 classes, is stored in respectively in the corresponding form, makes initial parameter reach standardization, scientific;
(2), coagulate the oily dissimilar reservoir characteristic parameter standard of keeping the score according to thin oil, viscous crude, height, employing keep the score mode with the data of parameters be divided into different during scope or special category, and represented with the numerical value between 0 to 10, quantitative data and qualitative data all are unified on the identical score value, differentiate and lay the foundation for quoting computing machine;
(3), utilize the reservoir characteristic parameter data of keeping the score, with resulting score value addition, compare with individual features index highest score sum, the number percent that draws is as the index of this layer judgement, the evaluation conclusion of making explanations, data according to statistics determines that percent value divides index and be: be payzone greater than 55%, less than 55% being non-payzone, further segmentation then is:
1., when percent value greater than 55% the time:
Than score value more than 3 minutes, the landwaste profile is more than 6 minutes during brill, and dripping was interpreted as oil reservoir more than 5 minutes;
Than score value below 3 minutes, the landwaste profile is below 6 minutes during brill, and dripping is interpreted as low pay sand more than 5 minutes;
Drip and be interpreted as the low yield oil-water common-layer below 5 minutes;
2., when percent value less than 55% the time, general solution is interpreted as non-payzone:
Than score value more than 4 minutes, dripping was interpreted as water layer below 3 minutes during brill; Than score value more than 4 minutes, the landwaste profile is interpreted as doing layer below 4 minutes during brill;
3., when percent value less than 55% the time, but oil bearing grade, contrast rank, gas survey several indexs such as total hydrocarbon wherein one be just can differentiate in 10 minutes to be hydrocarbon zone;
(4), according to the interpretation and evaluation conclusion, instructing on-the-spot wellbore construction with during boring well logging, and for the client in time provides accurately, reliable geologic parameter, for the formulation of work measure of following step or arrangement and method for construction provides foundation.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102176054A (en) * | 2011-02-18 | 2011-09-07 | 中国石油化工股份有限公司 | Near-surface comprehensive information processing explanation method |
| CN102312671A (en) * | 2011-09-16 | 2012-01-11 | 中国石油化工股份有限公司 | Method capable of fast explaining and evaluating reservoir fluid properties |
| CN102704924A (en) * | 2012-06-05 | 2012-10-03 | 中国石油天然气股份有限公司 | Effective dry layer determining method and device |
| CN104463686A (en) * | 2014-10-29 | 2015-03-25 | 中国石油集团川庆钻探工程有限公司 | Method for identifying shale gas reservoir while drilling by utilizing discriminant analysis method |
| CN105849360A (en) * | 2014-01-24 | 2016-08-10 | 界标制图有限公司 | Determining appraisal locations in a reservoir system |
| CN106437691A (en) * | 2016-08-05 | 2017-02-22 | 中国石油集团长城钻探工程有限公司录井公司 | Low gas-oil-ratio oil reservoir gas logging evaluation method |
| CN106555587A (en) * | 2016-11-24 | 2017-04-05 | 中国石油集团渤海钻探工程有限公司 | A kind of gas surveys the difference profit recognition methods of hydrocarbon component longitudinal direction |
| CN108756871A (en) * | 2018-05-31 | 2018-11-06 | 中国石油集团川庆钻探工程有限公司 | The logging explanation method that reservoir sentences knowledge is carried out using triangle plate and probability graph road |
| CN110608032A (en) * | 2019-09-18 | 2019-12-24 | 中国石油集团长城钻探工程有限公司录井公司 | Oil well yield prediction method based on light hydrocarbon logging and computer equipment |
| CN110805439A (en) * | 2019-11-12 | 2020-02-18 | 中国石油集团渤海钻探工程有限公司 | Method for identifying high-condensation oil by using chromatographic plate |
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| CN1015671B (en) * | 1990-06-09 | 1992-02-26 | 潘仁芳 | Oil deposit-described method by earthquake date |
| MXPA04003024A (en) * | 2003-04-03 | 2004-10-06 | Schlumberger Technology Bv | Methods and apparatus for predicting pore and fracture pressures of a subsurface formation. |
| CN1291241C (en) * | 2005-04-07 | 2006-12-20 | 西北大学 | Method for forecasting oil gas in reservoir bed of constant velocity argillite formation |
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2007
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| CN102176054B (en) * | 2011-02-18 | 2012-11-28 | 中国石油化工股份有限公司 | Near-surface comprehensive information processing explanation method |
| CN102176054A (en) * | 2011-02-18 | 2011-09-07 | 中国石油化工股份有限公司 | Near-surface comprehensive information processing explanation method |
| CN102312671A (en) * | 2011-09-16 | 2012-01-11 | 中国石油化工股份有限公司 | Method capable of fast explaining and evaluating reservoir fluid properties |
| CN102312671B (en) * | 2011-09-16 | 2014-02-12 | 中国石油化工股份有限公司 | Method capable of fast explaining and evaluating reservoir fluid properties |
| CN102704924A (en) * | 2012-06-05 | 2012-10-03 | 中国石油天然气股份有限公司 | Effective dry layer determining method and device |
| CN102704924B (en) * | 2012-06-05 | 2016-03-09 | 中国石油天然气股份有限公司 | The defining method of effective dried layer and device |
| CN105849360A (en) * | 2014-01-24 | 2016-08-10 | 界标制图有限公司 | Determining appraisal locations in a reservoir system |
| CN104463686B (en) * | 2014-10-29 | 2017-12-26 | 中国石油集团川庆钻探工程有限公司 | The method for identifying shale gas reservoir with boring using techniques of discriminant analysis |
| CN104463686A (en) * | 2014-10-29 | 2015-03-25 | 中国石油集团川庆钻探工程有限公司 | Method for identifying shale gas reservoir while drilling by utilizing discriminant analysis method |
| CN106437691A (en) * | 2016-08-05 | 2017-02-22 | 中国石油集团长城钻探工程有限公司录井公司 | Low gas-oil-ratio oil reservoir gas logging evaluation method |
| CN106437691B (en) * | 2016-08-05 | 2019-11-26 | 中国石油集团长城钻探工程有限公司录井公司 | A kind of low gas-oil ratio oil reservoir gas survey evaluation method |
| CN106555587A (en) * | 2016-11-24 | 2017-04-05 | 中国石油集团渤海钻探工程有限公司 | A kind of gas surveys the difference profit recognition methods of hydrocarbon component longitudinal direction |
| CN106555587B (en) * | 2016-11-24 | 2019-06-21 | 中国石油集团渤海钻探工程有限公司 | A kind of gas survey the hydrocarbon component longitudinal direction difference grease recognition methods |
| CN108756871A (en) * | 2018-05-31 | 2018-11-06 | 中国石油集团川庆钻探工程有限公司 | The logging explanation method that reservoir sentences knowledge is carried out using triangle plate and probability graph road |
| CN108756871B (en) * | 2018-05-31 | 2021-08-13 | 中国石油集团川庆钻探工程有限公司 | Logging interpretation method for reservoir identification by utilizing triangular chart and probability graph |
| CN110608032A (en) * | 2019-09-18 | 2019-12-24 | 中国石油集团长城钻探工程有限公司录井公司 | Oil well yield prediction method based on light hydrocarbon logging and computer equipment |
| CN110608032B (en) * | 2019-09-18 | 2023-01-24 | 中国石油天然气集团有限公司 | Oil well yield prediction method based on light hydrocarbon logging and computer equipment |
| CN110805439A (en) * | 2019-11-12 | 2020-02-18 | 中国石油集团渤海钻探工程有限公司 | Method for identifying high-condensation oil by using chromatographic plate |
| CN110805439B (en) * | 2019-11-12 | 2022-04-08 | 中国石油集团渤海钻探工程有限公司 | Method for identifying high-condensation oil by using chromatographic plate |
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