CN102681021A - Underground accident handling method for determining radioactive source position - Google Patents
Underground accident handling method for determining radioactive source position Download PDFInfo
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- CN102681021A CN102681021A CN2012101385337A CN201210138533A CN102681021A CN 102681021 A CN102681021 A CN 102681021A CN 2012101385337 A CN2012101385337 A CN 2012101385337A CN 201210138533 A CN201210138533 A CN 201210138533A CN 102681021 A CN102681021 A CN 102681021A
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Abstract
The invention discloses an underground accident handling method for determining a radioactive source position through four steps of hole bottom cleaning, logging, interpretation and salvage, solving the problem that a density probe and a radioactive source are difficult to find in sandstone-type uranium ore logging by using the traditional logging technology. The underground accident handling method is simple and feasible, short in time consumption, has no damage to logging equipment, and logging software and interpretation software are unique to the radioactive logging of uranium ore exploration. The underground accident handling method is also suitable for industries, such as petroleum and coal which use the radioactive source for logging.
Description
Technical field
The present invention relates to a kind of definite source positions down-hole accident disposal route.
Background technology
In the each task of sandstone type U-ore geology, drilling well plays crucial effect.Geophysical well logging is that uranium geology is explored an essential task; Yet; In the well logging process, have the density inserting tube that radioactive source is installed frequently and have an accident, can in the stratum, produce radioactive contamination if radioactive source is not salvaged, very bad to the influence that environment causes.The method that ordinary accident is handled has: drag for, carry, beat, sweep, dash, push up, instead, explode, pass through, expand, cut, split, mill etc.When density inserting tube and radioactive source generation card pipe; Cable is broken again; Creep into capable salvaging under the use drilling tool and can't touch density inserting tube and radioactive source; This shows that density inserting tube and radioactive source are very likely in somewhere that bore diameter enlarges; All do not prove effective, cause under the missing situation of inserting tube and radioactive source having used several different methods; Increase difficulty and blindness to accident treatment; Available the inventive method is accurately sought density inserting tube and source positions, and further salvaging density inserting tube and radioactive source work are shot the arrow at the target.
Summary of the invention
The problem that the present invention will solve is in the missing down-hole inserting tube searching of sandstone type U-ore well logging density inserting tube and radioactive source and confirms the accurate position of inserting tube; Utilize existing logging technology; Provide a kind of simple; Weak point consuming time is to the undamaged definite source positions down-hole accident disposal route of logging equipment.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is:
A kind of definite source positions down-hole accident disposal route is characterized in that, may further comprise the steps: cleaning bottom of hole → well logging → explanation → salvaging, wherein,
Said cleaning bottom of hole does, when density inserting tube and radioactive source are caused can't confirm accurate location the time by card, carries brill after with normal boring coring method logical, punching being swept in full hole, and punching mud character adopts low solid phase, and proportion is at 1.15-1.25g/cm
3Between, ensureing logs well can carry out smoothly;
Said well logging does, confirms source positions with quantitative Gamma device well logging, wants the zero adjustment mark during well logging, the backhaul difference meet the well logging code requirement less than per hundred meters less than 0.1m, the degree of accuracy of guarantee depth-logger;
Said being interpreted as; By well log interpretation resume module depth-logger error; Depth accuracy after the explanation is 0.05m; Publish picture explaining that good log is printed; Unusually suddenly change by gamma curve and raise to judge the accurate position of radioactive source; And on curve map, indicate the definite position of density inserting tube and radioactive source, for salvage provides the guidance foundation;
Said salvaging does, the position and concrete processing scheme confirmed according to well logging, density inserting tube and radioactive source fallen into the hole at the bottom of, with drilling accident disposal route enforcement salvaging.
Further; Said well logging interpretation module comprises data pre-service submodule; γCe Jing is explained submodule, the achievement output sub-module, and wherein the data processing submodule is used to detect the well depth data and transfers to γCe Jing explanation submodule; γCe Jing is explained submodule with data analysis and explanation, and the achievement output sub-module is printed explanation results and published picture.
The present invention uses existing radioactivity comprehensive logging equipment to accomplish, and need not the extra new equipment of purchasing, and economical and practical, operation is simple, time saving and energy saving.In seeking the salvaging process, can accurately survey density inserting tube and source positions, the density inserting tube and the radioactive source that are hidden in the borehole wall are found out, successfully lay a good foundation for salvaging density inserting tube and radioactive source.Through checking, seek aspect the accurate position of sandstone type U-ore density logging inserting tube and radioactive source very effective.
Description of drawings
Fig. 1 is implementing procedure figure of the present invention.
Fig. 2 is a well logging interpretation module software process flow diagram of the present invention.
Embodiment
Below in conjunction with specific embodiment the present invention is done and to further describe:
In conjunction with accompanying drawing, a kind of definite source positions down-hole accident disposal route of the present invention, its operation steps is:
The first, cleaning bottom of hole.When density inserting tube and radioactive source are caused can't confirm accurate location the time by card, carry brill after with normal boring coring method logical, punching being swept in full hole, punching mud character adopts low solid phase, and proportion is at 1.15-1.25g/cm
3Between, ensureing logs well can carry out smoothly.
The second, well logging.Confirm source positions with the well logging of quantitative Gamma device, want the zero adjustment mark during well logging, the backhaul difference meet the well logging code requirement less than per hundred meters less than 0.1m, the degree of accuracy of guarantee depth-logger.
The 3rd, explain.Through well logging interpretation resume module depth-logger error; Depth accuracy after the explanation is 0.05m; Publish picture explaining that good log is printed; Unusually suddenly change by gamma curve and raise to judge the accurate position of radioactive source, and on curve map, indicate the definite position of density inserting tube and radioactive source, for fishing job provides the guidance foundation.
The 4th, salvage.According to the position that well logging is confirmed, design concrete processing scheme herein, at the bottom of managing density inserting tube and radioactive source fallen into the hole, can successfully realize salvaging with the relevant accident treatment method enforcement of probing.
The inventive method once obtained checking in Hami basin ZK21 boring, be 100% to density inserting tube and source positions searching success ratio.
On Dec 1st, 2004, when the Sha Erhu ZK21 number boring in area (302.06 meters of hole depths) was logged well in Hami, the card pipe took place in the density inserting tube that has radioactive source, and cable is broken, and estimates to block 225 meters of pipe positions.First; When salvage on cleaning bottom of hole limit, drilling tool limit under the drilling technique personnel, adopt the low solid mud punching, drilling tool fails inserting tube and radioactive source are salvaged at the bottom of the hole; And in overall process, fail to touch inserting tube; Cause the salvaging failure to lose the inserting tube trace simultaneously, the drilling technique personnel are at one's wit's end, only judge that inserting tube and radioactive source hole diameter in boring enlarges the somewhere.Second; Utilize the quantitative Gamma device of radioactivity characteristic (this instrument be applicable to uranium geology reconnoitre in the unusual exact evaluation of uranium ore), aim at the hypocenter mark and begin well logging, well logging backhaul difference is 0.12 meter; 299.55 meters of depth-loggers; Meet the well logging code requirement less than per hundred meters less than 0.1 meter, when measuring source positions, Gamma device one of record on the well logging acquisition software contains the logging trace that profile amplitude sudden change raises.The 3rd; The physical prospecting technician makes an explanation with interpretation software to the gamma logging trace of gathering; The not overproof adjustment processing that need not of backhaul difference prints well logging interpretation figure after explaining, on figure, indicate the accurate position of radioactive source; Long 3.1 meters of density inserting tube, radioactive source is connected with density inserting tube bottom with set bolt.Result of log interpretation is: the accurate position of radioactive source is at 249.45 meters.At this moment, the bottom that can accurately conclude inserting tube is at 249.45 meters, and the top is at 246.35 meters.The 4th, confirmed the accurate position of inserting tube and radioactive source after, the spiral fashion steel that the drilling technique personnel have made drilling rod bottom welding high-grade alloy steel material colludes; Steel is colluded with drilling rod down to 249.45 meters, and rotary rig makes steel collude rotation and motion from bottom to top, and the rotating diameter that steel colludes in this position can be far longer than bore diameter; Steel is ticked inserting tube; Fall under gravity at the bottom of the hole, carry and bore tape swapping drill bit basket and bore down and salvage, successfully salvaged the inserting tube and the radioactive source that fall at the bottom of the hole.
The inventive method is also used the industry of radioactive source well logging applicable to oil, coal etc.
More than be detailed description, do not represent protection domain of the present invention to only limit to this, clearly, conceive any change of being made down in the present invention and all will fall into protection scope of the present invention the specific embodiment of the invention.
Claims (2)
1. a definite source positions down-hole accident disposal route is characterized in that, may further comprise the steps: cleaning bottom of hole → well logging → explanation → salvaging, wherein,
Said cleaning bottom of hole does, when density inserting tube and radioactive source are caused can't confirm accurate location the time by card, carries brill after with normal boring coring method logical, punching being swept in full hole, and punching mud character adopts low solid phase, and proportion is at 1.15-1.25g/cm
3Between, ensureing logs well can carry out smoothly;
Said well logging does, confirms source positions with quantitative Gamma device well logging, wants the zero adjustment mark during well logging, the backhaul difference meet the well logging code requirement less than per hundred meters less than 0.1m, the degree of accuracy of guarantee depth-logger;
Said being interpreted as; By well log interpretation resume module depth-logger error; Depth accuracy after the explanation is 0.05m; Publish picture explaining that good log is printed; Unusually suddenly change by gamma curve and raise to judge the accurate position of radioactive source; And on curve map, indicate the definite position of density inserting tube and radioactive source, for salvage provides the guidance foundation;
Said salvaging does, the position and concrete processing scheme confirmed according to well logging, density inserting tube and radioactive source fallen into the hole at the bottom of, with drilling accident disposal route enforcement salvaging.
2. a kind of definite source positions down-hole accident disposal route according to claim 1; It is characterized in that said well logging interpretation module comprises data pre-service submodule, γCe Jing is explained submodule; The achievement output sub-module; Wherein the data processing submodule is used to detect the well depth data and transfers to γCe Jing explanation submodule, and γCe Jing is explained submodule with data analysis and explanation, and the achievement output sub-module is printed explanation results and published picture.
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| CN2012101385337A CN102681021A (en) | 2012-05-04 | 2012-05-04 | Underground accident handling method for determining radioactive source position |
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| CN2012101385337A CN102681021A (en) | 2012-05-04 | 2012-05-04 | Underground accident handling method for determining radioactive source position |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837655A (en) * | 2022-05-24 | 2022-08-02 | 吉林瑞荣德能源科技有限公司 | Method and device for positioning oil and gas logging optical fiber |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201671582U (en) * | 2010-06-02 | 2010-12-15 | 核工业二〇三研究所技术开发部 | Sandstone type uranium ore well logging gripper tube midway salvaging device |
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2012
- 2012-05-04 CN CN2012101385337A patent/CN102681021A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201671582U (en) * | 2010-06-02 | 2010-12-15 | 核工业二〇三研究所技术开发部 | Sandstone type uranium ore well logging gripper tube midway salvaging device |
Non-Patent Citations (2)
| Title |
|---|
| 孙秋明等: "一起密度探头打捞案例剖析", 《石油仪器》 * |
| 陈永才等: "裸眼测井遇卡处理方法剖析", 《测井技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837655A (en) * | 2022-05-24 | 2022-08-02 | 吉林瑞荣德能源科技有限公司 | Method and device for positioning oil and gas logging optical fiber |
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Application publication date: 20120919 |