CN101532373A - Multi-point oriented coring system and method for drill core - Google Patents
Multi-point oriented coring system and method for drill core Download PDFInfo
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- CN101532373A CN101532373A CN200910135770A CN200910135770A CN101532373A CN 101532373 A CN101532373 A CN 101532373A CN 200910135770 A CN200910135770 A CN 200910135770A CN 200910135770 A CN200910135770 A CN 200910135770A CN 101532373 A CN101532373 A CN 101532373A
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Abstract
The invention discloses a multi-point oriented coring system and a method for drill core. The system includes: a rope coring part, an underground orientation device, a searching tube orientation unit, a PC machine and a software kit, a printer, a ground winch and a deep measurement system. The invention also discloses a multi-point oriented coring method for drill core which includes steps as follows: confirming the drill core position and a corresponding relationship relative to magnetic north orientation in a same time according with a real-time clock of a drill core orientation instrument and a real-time clock of the underground deep device, accordingly, calculating the inner drill core orientation of the whole coring pipe correctly.
Description
Technical field
The present invention relates to the oil drilling field, relate in particular to a kind of system and method for multiple spot core orientation coring device.
Background technology
The core orientation core-taking technology is a technology of determining the original occurrence of core in the stratum, and the research that orientation is got core is always attached great importance in geologic prospect both at home and abroad, and it is considered as reconnoitring one of key technology.It not only can descend the occurrence of rock-soil layer and structural plane rapidly, easily definitely, but also can judge the movement direction of deposit and harmful chemical, the various physical features of subsurface rock are understood in the orientation of radioactive source, stress field, and the trend of forecast hole deviation.In the geological disaster field, usually utilize orientation to get the core parameter and descend level rock and post-rift occurrence definitely, underground fluid motion and seepage direction, the inclination angle of potential parting surface and slide plane and incline direction or the like in the rock mass are for construction of the reconnoitring of the early warning of geological disaster, mine, geotechnical engineering etc. provides reliable geological basis.Environmental engineering geology is reconnoitred in China, rock-soil layer preventing land slide and monitoring, geological survey, mine are detailedly surveyed, mining, oil exploration, water conservancy and hydropower, and other geotechnical engineering field in, the core orientation core-taking technology also has a wide range of applications.In probing of solid mineral products and exploitation, the natural exploration and development of oil, aspects such as continent and ocean Science Drilling are also got core to core orientation and are classified an important process as.The at present domestic wire line coring mode that generally adopts, the core of obtaining is behind ground, and the occurrence section can't reduce, and can not judge the trend on stratum, still needs boring and coring once more, has increased and has applied difficulty.The domestic single-point magnetic core orientation instrument of also having developed, but reach more than the length arrival 1m owing to get core at every turn, after the fracture of generation core, still can not determine the occurrence of the core that is broken for multistage.
Summary of the invention
The invention provides a kind of multiple spot core orientation and get core system and method, can be in getting the process of core, record multistage core is when getting core, and its groove is with respect to the direction of magnetic north.
A kind of multiple spot core orientation provided by the invention is got core system, comprising: the wire line coring part, downhole orientation instrument, inserting tube directed element, PC and software kit, printer, ground winch and depth-measuring system are formed.
Described downhole orientation instrument is made up of core scratcher and inserting tube directed element, only need be fixed on core barrel (or claiming interior pipe) to inserting tube before using and extract end, manages the end near drill bit in core scratch device being fixed on again, and can begin to get core.
Described inserting tube directed element is made up of outer tube and the interior pipe that is placed in the outer tube, is provided with drill bit at an end of outer tube.
Described inserting tube uses fluxgate sensor and acceleration transducer to measure the core attitude information, and requiring outer tube is no magnetic outer tube, that is the outer tube of nonmagnetic interference.
On the ground, the well depth survey device writes down the real-time clock of different depth simultaneously.
The invention provides a kind of multiple spot core orientation and get the core method, comprising:
By the real-time clock of core orientation instrument and the real-time clock of well depth device, determine the position of identical moment core and with respect to the corresponding relation in the orientation of magnetic north, thereby can correctly extrapolate the orientation of core in the whole corer;
Even core is fractured into multistage,, still can accurately reduce the orientation of core of its reset condition according to its putting in order and indent locations in corer;
In the drive sampling process, drilling rod drives outer tube and is positioned at the drill bit rotation of the outer tube other end, and core is progressed into be placed on the interior pipe within the outer tube.Be fixed with the core scratcher at interior pipe near the drill bit end.The position of the relative inserting tube of scratcher is fixed, in whole drilling process, and core scratcher cut on core;
Device has the fluxgate sensor acceleration transducer on the inserting tube, single-chip microcomputer and storage chip.It can the timing acquiring core attitude information and be stored on the chip.Get that core orientation instrument in the core process is constantly gathered the orientation of cut and when the real-time time that be.
Description of drawings
Fig. 1 is the structural representation of downhole orientation instrument in the embodiment of the invention 1;
Fig. 2 is the embodiment of the invention 2 process schematic diagrames;
Fig. 3 is a multiple spot core orientation core work flow chart of the present invention;
Fig. 4 is that the present invention gets core recovery schematic diagram;
Fig. 5 is an internal construction schematic diagram of the present invention.
The specific embodiment
In order to make those skilled in the art person understand the scheme of the embodiment of the invention better, the embodiment of the invention is described in further detail below in conjunction with drawings and embodiments.
At first, with reference to Fig. 1 is the structural representation of downhole orientation instrument in the embodiment of the invention 1, the downhole orientation instrument is made up of core scratcher 2 and inserting tube directed element 3, only need be fixed on core barrel (or claiming interior pipe) to inserting tube before using and extract end, pipe can begin to get core near an end of drill bit 1 in core scratch device being fixed on again.
With reference to Fig. 2 is the embodiment of the invention 2 process schematic diagrames, get a full core after, it is static more than one minute that drilling tool keeps, and note time when static.
With reference to Fig. 3 is multiple spot core orientation core work flow chart of the present invention, comprises step:
Step 1 is fixed on core barrel (or managing in claiming) with inserting tube and extracts end.
Step 8 is printed and is got the preservation of core locating information.
With reference to Fig. 4 is that the present invention gets core recovery schematic diagram,
With reference to Fig. 5 is internal construction schematic diagram of the present invention, comprising: 4 fishing spears, and 5 drilling and coring delivery instrument, 6 outer tubes, 7 interior pipes, 8 jump rings and 9 drill bits are formed.
In the invention process process, the core degree of depth and corresponding time relationship are as shown in table 1:
| Get the core degree of depth | H1 | H2 | H3 | ... | ... | H9 | H10 |
| The corresponding time | T1 | T2 | T3 | ... | ... | T9 | T10 |
Table 1
Wherein: H=H10-H1=3m, H get in-core pipe total length, and depth interval is consistent in the recording process.
Read inserting tube information as can be seen from Table 2, promptly can be according to getting the original occurrence in the stratum of core time and depth recovery core.
Table 2
More than the embodiment of the invention is described in detail, used the specific embodiment herein the present invention set forth, the explanation of above embodiment just is used for help understanding system and method for the present invention; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (8)
1, a kind of multiple spot core orientation is got core system, it is characterized in that, comprising:
The wire line coring part, downhole orientation instrument, inserting tube directed element, PC and software kit, printer, ground winch and depth-measuring system.
2, system according to claim 1 is characterized in that, wire line coring part in wire line coring, the angle of coring tool and magnetic north when writing down wire line coring at interval, and the real-time time of this survey mark with regular time.
3, system according to claim 1 is characterized in that, described downhole orientation instrument is made up of core scratcher and inserting tube directed element.
4, system according to claim 1 is characterized in that, described inserting tube directed element is made up of outer tube and the interior pipe that is placed in the outer tube.
5, system according to claim 1 is characterized in that, described ground well depth measurement mechanism, and real time record is got the corresponding relation of the core degree of depth and real-time clock.
6, system according to claim 4 is characterized in that, described inserting tube directed element is provided with drill bit at an end of outer tube.
7, system according to claim 4 is characterized in that, described inserting tube directed element uses fluxgate sensor and acceleration transducer to measure the core attitude information, and requiring outer tube is no magnetic outer tube, that is the outer tube of nonmagnetic interference.
8, a kind of multiple spot core orientation is got core system, it is characterized in that, it is characterized in that, comprises step:
Described method by the core orientation instrument real-time clock and the real-time clock of well depth device, determine the position of identical moment core and with respect to the corresponding relation in the orientation of magnetic north, thereby can correctly extrapolate the orientation of core in the whole corer;
Even core is fractured into multistage,, still can accurately reduce the orientation of core of its reset condition according to its putting in order and indent locations in corer;
Described method is in the drive sampling process, and drilling rod drives outer tube and is positioned at the drill bit rotation of the outer tube other end, and core is progressed into be placed on the interior pipe within the outer tube.Be fixed with the core scratcher at interior pipe near the drill bit end.The position of the relative inserting tube of scratcher is fixed, in whole drilling process, and core scratcher cut on core;
Device has the fluxgate sensor acceleration transducer on the described method inserting tube, single-chip microcomputer and storage chip.It can the timing acquiring core attitude information and be stored on the chip.Get that core orientation instrument in the core process is constantly gathered the orientation of cut and when the real-time time that be.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910135770A CN101532373A (en) | 2009-04-28 | 2009-04-28 | Multi-point oriented coring system and method for drill core |
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| CN200910135770A CN101532373A (en) | 2009-04-28 | 2009-04-28 | Multi-point oriented coring system and method for drill core |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178900A (en) * | 2015-10-13 | 2015-12-23 | 中国科学院武汉岩土力学研究所 | Core-drilling device and method of rock cores containing hollow inclusions in three-dimensional ground stress measurement |
| CN105334545A (en) * | 2014-07-24 | 2016-02-17 | 北京伟思德克科技有限责任公司 | Directional-drilling three-dimensional geological information acquisition method |
| CN106546658A (en) * | 2016-10-27 | 2017-03-29 | 中国石油大学(北京) | Device and its measuring method that a kind of measurement proppant is distributed in rock stratum |
| CN106556640A (en) * | 2016-11-22 | 2017-04-05 | 中国矿业大学(北京) | Assay device and its method of testing that a kind of measurement fracturing fracture is distributed in rock stratum |
| CN107209165A (en) * | 2015-02-10 | 2017-09-26 | 伊姆戴克思全球私人有限责任公司 | For determining system, method and apparatus that architectural feature present in drilling core is arranged |
| WO2019029249A1 (en) * | 2017-08-09 | 2019-02-14 | 山东科技大学 | Rock core orienting apparatus based on geomagnetic field, sampling apparatus, and sampling method thereof |
| CN111855271A (en) * | 2020-07-28 | 2020-10-30 | 中国海洋石油集团有限公司 | Coring instrument capable of drilling rock core in specified direction in well |
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2009
- 2009-04-28 CN CN200910135770A patent/CN101532373A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105334545A (en) * | 2014-07-24 | 2016-02-17 | 北京伟思德克科技有限责任公司 | Directional-drilling three-dimensional geological information acquisition method |
| CN107209165A (en) * | 2015-02-10 | 2017-09-26 | 伊姆戴克思全球私人有限责任公司 | For determining system, method and apparatus that architectural feature present in drilling core is arranged |
| CN105178900A (en) * | 2015-10-13 | 2015-12-23 | 中国科学院武汉岩土力学研究所 | Core-drilling device and method of rock cores containing hollow inclusions in three-dimensional ground stress measurement |
| CN105178900B (en) * | 2015-10-13 | 2017-10-17 | 中国科学院武汉岩土力学研究所 | The coring device and method of the core containing hollow inclusion in a kind of three-dimensional ground stress test |
| CN106546658A (en) * | 2016-10-27 | 2017-03-29 | 中国石油大学(北京) | Device and its measuring method that a kind of measurement proppant is distributed in rock stratum |
| CN106546658B (en) * | 2016-10-27 | 2019-05-21 | 中国石油大学(北京) | It is a kind of to measure the device and its measurement method that proppant is distributed in rock stratum |
| CN106556640A (en) * | 2016-11-22 | 2017-04-05 | 中国矿业大学(北京) | Assay device and its method of testing that a kind of measurement fracturing fracture is distributed in rock stratum |
| CN106556640B (en) * | 2016-11-22 | 2019-05-10 | 中国矿业大学(北京) | It is a kind of to measure the experimental rig and its test method that fracturing fracture is distributed in rock stratum |
| WO2019029249A1 (en) * | 2017-08-09 | 2019-02-14 | 山东科技大学 | Rock core orienting apparatus based on geomagnetic field, sampling apparatus, and sampling method thereof |
| CN111855271A (en) * | 2020-07-28 | 2020-10-30 | 中国海洋石油集团有限公司 | Coring instrument capable of drilling rock core in specified direction in well |
| CN111855271B (en) * | 2020-07-28 | 2023-09-15 | 中国海洋石油集团有限公司 | Coring instrument capable of drilling underground designated azimuth core |
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Application publication date: 20090916 |