CN1851232A - Deuterium-deuterium controllable compensating neutron well logging instrument during drilling - Google Patents
Deuterium-deuterium controllable compensating neutron well logging instrument during drilling Download PDFInfo
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- CN1851232A CN1851232A CN 200610081180 CN200610081180A CN1851232A CN 1851232 A CN1851232 A CN 1851232A CN 200610081180 CN200610081180 CN 200610081180 CN 200610081180 A CN200610081180 A CN 200610081180A CN 1851232 A CN1851232 A CN 1851232A
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Abstract
The invention provides a neutron-compensating-while-drilling logging device, for real-timely measuring stratum porosity around borehole in the well drilling course, where the side surface of a drill collar is made with a U-shaped groove, in which from the top down is equipped with receiver module compressive cylinder and generator module compressive cylinder, where they are equipped with receiver installation framework and generator installation framework, respectively, the receiver installation framework is equipped from the top down with signal processing circuit module, far neutron detector, far detector screening block, near neutron detector and near detector screening block inside, and the generator installation framework is equipped from the top down with generator control circuit, radiating device and neutron generator inside. And it adopts deuterium-deuterium reaction accelerator as neutron source, reducing radioactive damage to the human and environments and has longer service life and higher sensitivity, applied to geology- oriented well drilling.
Description
Technical field:
The present invention relates to a kind of wireless drilling measurer that in the oil drilling industry, is used for geosteering.Specifically, the present invention relates to deuterium-deuterium alpha reaction accelerator neutron generator with boring compensated neutron porosity logging instrument.
Background technology:
In the petroleum industry geologic steering drilling, be used at drilling process with boring compensation neutron logger, real-time measuring well is the degree of porosity of exclosure layer near the eyes, thereby differentiates oil-gas Layer, calculates the oil productive capacity on stratum.Present known well logging during compensation neutron logger is used a neutron source, and putting two neutron detectors from neutron source different distance place, measure the ratio of two Detector count rate, because this ratio mainly reflects the hydrogen content on stratum, and hydrogen is contained in the fluid on stratum usually, so hydrogen content is relevant with formation porosity, calculate formation porosity thus.In the present known well logging during compensation neutron logger, neutron source adopts americium-beryllium neutron source or D-T accelerator neutron generator, does not adopt deuterium-deuterium alpha reaction accelerator neutron generator.
Use the compensated neutron porosity logging instrument of americium-beryllium neutron source to have following shortcoming:
Because the high energy particle that americium-beryllium neutron source utilizes the nuclear decay of radio isotope americium to emit removes to bombard target material beryllium nuclear, realize the nuclear reaction of given-ioff neutron, even can not produce strong radioactivity when therefore it does not move yet, though adopt multiple radioactive source screen protective device and measure, but the execute-in-place environmental limitations use of effective preventive means, usually be free-hand operation, be difficult to avoid operating personnel are caused health hazards.In addition, the as easy as rolling off a log radioactive sources lost that makes of well logging during complicated operations condition, and also the recovery of radioactive source is relatively more difficult, if in use, can't salvage because of the down-hole equipment bit freezing makes radioactive source fall into well, then radioactive source is understood the severe contamination stratum, even whole oil district is scrapped.
Use the compensated neutron porosity logging instrument of D-T accelerator neutron generator to have following shortcoming:
At first, the life-span of D-T accelerator neutron generator is shorter.The D-T accelerator neutron generator makes the charged particle deuteron accelerate to higher-energy by accelerator, and the triton of bombardment target material is realized the nuclear reaction of given-ioff neutron.Because contain more unstable radioactive nucleic tritium in its target, its natural decay product is an inert gas helium, the helium concentration in target that is produced along with the tritium decay increases can make D-T accelerator neutron generator air pressure inside increase.In addition, during work because the ion sputtering of the hot-spot of target, target surface and foreign ion cause easily that to the dilution of tritium concentration in the target neutron yield descends.And the target material of deuterium-deuterium alpha reaction accelerator neutron generator is a deuteron, does not then have this problem.
Secondly, according to compensated neutron porosity measurement principle, measurement sensitivity is relevant with the energy of employed neutron source, and the energy of neutron source is high more, and the degree of porosity sensitivity of apparatus measures is low more.The average energy of americium-beryllium neutron source is about 4～5MeV, and deuterium-deuterium alpha reaction accelerator neutron generator output energy is the fast neutron of 2.3MeV, and D-T accelerator neutron generator output energy is the fast neutron of 14MeV.Therefore, adopt the compensated neutron degree of porosity sensitivity of deuterium-deuterium alpha reaction accelerator neutron generator the highest, americium-beryllium neutron source the person take second place, and the D-T accelerator neutron generator is then the poorest.
In addition, though the D-T accelerator neutron generator can not produce strong radioactivity when not moving, but contain a large amount of unstable radioactive nucleic tritiums in its target, when it in the down-hole during because of unexpected the damage, can produce and the same radioactivity problem of americium-beryllium neutron source, cause the severe contamination on stratum.And the target material deuteron of deuterium-deuterium alpha reaction accelerator neutron generator is comparatively stable, does not have this problem.
Summary of the invention:
The objective of the invention is in order to provide a kind of with boring compensation neutron logger, be used at the real-time measuring well degree of porosity of exclosure layer near the eyes of drilling process, compared with prior art, overcome and used americium-beryllium neutron source, and the D-T accelerator neutron generator life-span is low and the problem of poor sensitivity the radiological hazard that human and environment brought.
Instrument of the present invention comprises: drill collar, wire guide, the mud flow-guiding channel, the high pressure sealing cover plate, U-lag, fixed connector, receiver is installed skeleton, control processing circuit, neutron detector far away, the far detector shielding slab, nearly neutron detector, nearly probe shielding slab, receiver module resistance to compression tube, coupled connector, generator module resistance to compression tube, generator is installed skeleton, middle sub-controller, heat abstractor, accelerator for neutron production, sliding ring connector, nearly neutron signal processor, neutron signal processor far away, high voltage source, power-supply controller of electric, the ion gun controller, microprocessor, memory, modem, the bus driver for isolating.
Feature of the present invention is: comprise a mud flow-guiding channel in the drill collar at least, have a U-lag in the drill collar side, receiver module resistance to compression tube and generator module resistance to compression tube are installed in U-lag from top to bottom, receiver is housed respectively in receiver module resistance to compression tube and the generator module resistance to compression tube skeleton and generator installation skeleton are installed, receiver is installed in the skeleton control processing circuit is installed from top to bottom, neutron detector far away, the far detector shielding slab, nearly neutron detector and nearly probe shielding slab, sub-controller during generator is installed and installed from top to bottom in the skeleton, heat abstractor and accelerator for neutron production, accelerator for neutron production is deuterium-deuterium alpha reaction accelerator neutron generator, receiver is installed by the skeleton upper end and generator installation skeleton lower end is connected with fixed connector respectively, fixed connector is fixed on the drill collar outer wall by the high pressure sealing cover plate, between receiver module resistance to compression tube and the generator module resistance to compression tube coupled connector is installed, coupled connector is fixed on the drill collar outer wall, control processing circuit comprises microprocessor and ion gun controller, middle sub-controller and ion gun controller and microprocessor, accelerator for neutron production connects.
Of the present inventionly be with boring the beneficial effect that deuterium-the deuterium compensation neutron logger has, drill collar formula mounting structure with anti-vibration, anti-high-handed measures adapts to the abominable working environment in down-hole, adopt deuterium-deuterium alpha reaction accelerator neutron generator, reduced the radiological hazard that human and environment is brought, and have higher application life and sensitivity, be applicable to geologic steering drilling.
The present invention is further described below in conjunction with drawings and Examples.
Description of drawings:
Fig. 1 represents the axial section of " with boring deuterium-deuterium compensation neutron logger ";
Fig. 2 represents the radial section figure of " with boring deuterium-deuterium compensation neutron logger ";
Fig. 3 represents the signal processing flow block diagram of " with boring deuterium-deuterium compensation neutron logger ".
1, drill collar 2, wire guide 3, mud flow-guiding channel
4, high pressure sealing cover plate 5, U-lag 6, fixed connector
7, receiver is installed skeleton 8, control processing circuit 9, neutron detector far away
10, far detector shielding slab 11, nearly neutron detector 12, nearly probe shielding slab
13, receiver module resistance to compression tube 14, coupled connector 15, generator module resistance to compression tube
16, generator is installed skeleton 17, middle sub-controller 18, heat abstractor
19, accelerator for neutron production 20, sliding ring connector 21, nearly neutron signal processor
22, neutron signal processor 23 far away, high voltage source 24, power-supply controller of electric
25, ion gun controller 26, microprocessor 27, memory
28, modem 29, bus driver for isolating
The specific embodiment:
Now, the present invention is further described in conjunction with Figure of description 1,2 and 3.
Fig. 1 represents the axial section of instrument.For adapting to the abominable working environment in down-hole, instrument adopts drill collar formula mounting structure, and anti-vibration, anti-high-handed measures are arranged.Drill collar 1 is usually located at after drill bit or the deflecting tool as the installation skeleton of instrument and the part of down-hole equipment.The drill collar side has a U-lag 5, receiver module resistance to compression tube 13 and generator module resistance to compression tube 15 are installed in U-lag 5 from top to bottom, their wall thickness should satisfy the requirement of anti-down-hole slurry high pressure, columnar receiver is housed respectively in receiver module resistance to compression tube 13 and the generator module resistance to compression tube 15 skeleton 7 and generator installation skeleton 16 are installed.
Receiver is installed control processing circuit 8, neutron detector 9 far away, far detector shielding slab 10, nearly neutron detector 11 and nearly probe shielding slab 12 is installed in the skeleton 7 from top to bottom, internal voids fills up with glue, and receiver is installed skeleton 7 and is contained in the receiver module resistance to compression tube 13.Nearly neutron detector 11 and neutron detector far away 9 adopt helium-3 pipe, and the signal of its output calculates formation porosity information after handling through control processing circuit 8.Nearly probe shielding slab 12 and far detector shielding slab 10 are by containing boron material and the tungsten ferronickel is made, be installed in nearly neutron detector 11 and neutron detector 9 lower ends far away respectively, be used to shield the neutron that neutron source is directly incident on probe, make the variation sensitivity of probe formation porosity.
Receiver is installed by skeleton 7 upper ends and generator installation skeleton 16 lower ends are connected with fixed connector 6 respectively, high pressure sealing cover plate 4 is pressed in fixed connector 6 outsides, and be fixed on drill collar 1 outer wall, prevent that high-pressure slurry from entering fixed connector 6, causes instrument damage.
According to the compensated neutron measuring method, should keep suitable distance between neutron source and two neutron detectors, in the present invention, be installed with the coupled connector 14 of certain-length between receiver module resistance to compression tube 13 and generator module resistance to compression tube 15, another effect of coupled connector 14 is being electrically connected between generator part and the receiver part.
Screw thread root at drill collar 1 is inlaid with sliding ring connector 22, and has wire guide 2 to lead to U-lag 5, and wire guide 2 and sliding ring connector 22 are used for power supply and signal transmission.
Fig. 2 represents the radial section figure of instrument.Drill collar 1 comprises a mud flow-guiding channel 3 at least, and the water conservancy diversion drilling fluid is from ground to the drill bit.Mud flow-guiding channel 3 is a sprue in the upper and lower of drill collar 1, this runner center and drill collar 1 axial centre be not in same position, be divided into the less runner of two or more diameters in U-lag 5 positions, with the requirement of strength that satisfies apparatus structure and drilling engineering required the mud displacement requirement.As another kind of runner form, mud flow-guiding channel 3 also can only include a sprue in drill collar 1.
Fig. 3 represents the signal processing flow block diagram of instrument.Control processing circuit 8 comprises: nearly neutron signal processor 21, neutron signal processor 22 far away, high voltage source 23, power-supply controller of electric 24, ion gun controller 25, microprocessor 26, memory 27, modem 28 and bus driver for isolating 29.
Instrument is gone into the well before by the computer software setting, produce different control command sequential by the ground slush pump after perhaps instrument is gone into the well, enter specific mode of operation by instrumentation program under microprocessor 26 control wells, produce specific control sequential, sub-controller 17 in the supply, and the duty of switch control accelerator for neutron production 19 is measured if need, then make accelerator for neutron production 19 produce neutron, otherwise stop to produce neutron.In addition, in the instrument course of work, microprocessor 26 calculates thermal neutron flux according to the count value of nearly neutron detector 11 or neutron detector far away 9 output pulses, feed back to ion gun controller 25, the ion gun electric current of control accelerator for neutron production 19, realize the self adaptation regulation and control of neutron yield, make uncertainty of measurement reach requirement.
The duty of high voltage source 23 is controlled through power-supply controller of electric 24 by microprocessor 26, nearly neutron detector 11 of the high voltage supply of its output and neutron detector 9 far away.Nearly neutron detector 11 and neutron detector 9 far away change into the signal of telecommunication with the stratum neutron that receives, pass through nearly neutron signal processor 21 and neutron signal processor 22 far away respectively, deliver to microprocessor 26 after becoming the calibration pulse signal, paired pulses is counted, calculate the degree of porosity on stratum according to count value, and result of calculation is saved in the memory 27 by the data record format that designs, simultaneously according to the transmission needs, after the compression of calculated data coding, be modulated into the signal of specific format by modem 28, and after bus driver for isolating 29 drives, deliver to the MWD instrument by single core bus, control its mud-pressure-pulse telemetry system by MWD and send to ground together.
Claims (4)
1, a kind of with boring deuterium-deuterium controllable compensating neutron logging instrument, comprise: drill collar (1), mud flow-guiding channel (3), U-lag (5), receiver is installed skeleton (7), control processing circuit (8), neutron detector (9) far away, far detector shielding slab (10), nearly neutron detector (11), nearly probe shielding slab (12), receiver module resistance to compression tube (13), generator module resistance to compression tube (15), generator is installed skeleton (16), middle sub-controller (17), heat abstractor (18), accelerator for neutron production (19), it is characterized in that: comprise a mud flow-guiding channel (3) in the drill collar (1) at least, have a U-lag (5) in drill collar (1) side, receiver module resistance to compression tube (13) and generator module resistance to compression tube (15) are installed in U-lag (5) from top to bottom, receiver is housed respectively in receiver module resistance to compression tube (13) and the generator module resistance to compression tube (15) skeleton (7) and generator installation skeleton (16) are installed, receiver is installed in the skeleton (7) control processing circuit (8) is installed from top to bottom, neutron detector (9) far away, far detector shielding slab (10), sub-controller (17) during nearly neutron detector (11) and nearly probe shielding slab (12), generator are installed and installed from top to bottom in the skeleton (16), heat abstractor (18) and accelerator for neutron production (19).
2, according to claim 1 with boring deuterium-deuterium controllable compensating neutron logging instrument, it is characterized in that accelerator for neutron production (19) is deuterium-deuterium alpha reaction accelerator neutron generator.
3, according to claim 1 with boring deuterium-deuterium controllable compensating neutron logging instrument, it is characterized in that: receiver is installed by skeleton (7) upper end and generator installation skeleton (16) lower end is connected with fixed connector (6) respectively, fixed connector (6) is fixed on drill collar (1) outer wall by high pressure sealing cover plate (4), between receiver module resistance to compression tube (13) and the generator module resistance to compression tube (15) coupled connector (14) is installed, coupled connector (14) is fixed on drill collar (1) outer wall.
4, according to claim 1 with boring deuterium-deuterium controllable compensating neutron logging instrument, it is characterized in that: control processing circuit (8) comprises ion gun controller (25) and microprocessor (26), and middle sub-controller (17), ion gun controller (25) all are connected with microprocessor (26), accelerator for neutron production (19).
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| CNB2006100811806A CN100497885C (en) | 2006-05-24 | 2006-05-24 | Deuterium-deuterium controllable compensating neutron well logging instrument during drilling |
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|---|---|---|---|
| CNB2006100811806A CN100497885C (en) | 2006-05-24 | 2006-05-24 | Deuterium-deuterium controllable compensating neutron well logging instrument during drilling |
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| CN1851232A true CN1851232A (en) | 2006-10-25 |
| CN100497885C CN100497885C (en) | 2009-06-10 |
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Cited By (10)
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| CN101598017B (en) * | 2008-06-04 | 2012-10-31 | 中国石油集团钻井工程技术研究院 | Device for measuring porosity of azimuth neutrons during drilling |
| CN103527181A (en) * | 2012-07-05 | 2014-01-22 | 中国石油天然气集团公司 | Method and instrument for controllable source neutron logging during drilling |
| CN104747179A (en) * | 2013-12-31 | 2015-07-01 | 中国石油化工集团公司 | Stratum density measuring while drilling instrument based on deuterium-tritium accelerator neutron source |
| CN105307374A (en) * | 2015-11-25 | 2016-02-03 | 中国石油集团钻井工程技术研究院 | Neutron generator for measurement while drilling |
| CN105604538A (en) * | 2014-11-03 | 2016-05-25 | 中国石油集团长城钻探工程有限公司 | Compensated neutron logging instrument with controllable neutron source and control circuit of same |
| CN105986812A (en) * | 2015-02-13 | 2016-10-05 | 中国石油集团长城钻探工程有限公司 | Deuterium-deuterium controllable source compensated neutron logging instrument for wireline logging and corresponding method |
| CN107829728A (en) * | 2017-10-20 | 2018-03-23 | 中国石油天然气集团公司 | Multi-source is away from brill neutron porosity measurement device and its measuring method |
| CN108798653A (en) * | 2017-04-28 | 2018-11-13 | 中石化石油工程技术服务有限公司 | One kind is with brill controllable neutron source independent source bin device |
| CN110056341A (en) * | 2018-01-18 | 2019-07-26 | 中石化石油工程技术服务有限公司 | One kind is with brill controllable source density logging device |
| CN111119871A (en) * | 2018-10-31 | 2020-05-08 | 中石化石油工程技术服务有限公司 | Measuring device for measuring formation density value and measuring method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3789217A (en) * | 1970-02-10 | 1974-01-29 | Dresser Ind | Water production system having means to selectively profile vary borehole fluid flow |
| US3914603A (en) * | 1973-12-17 | 1975-10-21 | Texaco Inc | Neutron lifetime well logging methods and apparatus |
| CN1015674B (en) * | 1986-06-07 | 1992-02-26 | 施卢默格海外有限公司 | Well lagging tool with accelerator neutron source |
| CN86210206U (en) * | 1986-12-19 | 1987-12-12 | 清华大学 | Quick disassemble mechanism for strong radioactive source of well testing instrument |
| CN2704053Y (en) * | 2004-05-17 | 2005-06-08 | 郭清生 | Pulse neutron well logging instrument for four neutron-neutron detector |
| CN2737945Y (en) * | 2004-10-12 | 2005-11-02 | 郭清生 | Pulse neutron well logging instrument capable of synchronous making carbon-oxygen ratio and PNN well logging |
| CN1760509A (en) * | 2005-07-07 | 2006-04-19 | 中国石化集团胜利石油管理局测井公司 | Pulse neutron logging instrument |
| CN2900786Y (en) * | 2006-05-24 | 2007-05-16 | 中国石化集团胜利石油管理局钻井工艺研究院 | Deuterium-deuterium controlable compensation neutron well logging instrument while drilling |
-
2006
- 2006-05-24 CN CNB2006100811806A patent/CN100497885C/en active Active
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| CN101598017B (en) * | 2008-06-04 | 2012-10-31 | 中国石油集团钻井工程技术研究院 | Device for measuring porosity of azimuth neutrons during drilling |
| CN103527181A (en) * | 2012-07-05 | 2014-01-22 | 中国石油天然气集团公司 | Method and instrument for controllable source neutron logging during drilling |
| CN103527181B (en) * | 2012-07-05 | 2016-12-21 | 中国石油天然气集团公司 | A kind of with boring controllable source neutron well logging method and instrument |
| CN104747179A (en) * | 2013-12-31 | 2015-07-01 | 中国石油化工集团公司 | Stratum density measuring while drilling instrument based on deuterium-tritium accelerator neutron source |
| CN105604538B (en) * | 2014-11-03 | 2024-02-02 | 中国石油集团长城钻探工程有限公司 | Controllable neutron source compensation neutron logging instrument and control circuit thereof |
| CN105604538A (en) * | 2014-11-03 | 2016-05-25 | 中国石油集团长城钻探工程有限公司 | Compensated neutron logging instrument with controllable neutron source and control circuit of same |
| CN105986812A (en) * | 2015-02-13 | 2016-10-05 | 中国石油集团长城钻探工程有限公司 | Deuterium-deuterium controllable source compensated neutron logging instrument for wireline logging and corresponding method |
| CN105307374A (en) * | 2015-11-25 | 2016-02-03 | 中国石油集团钻井工程技术研究院 | Neutron generator for measurement while drilling |
| CN105307374B (en) * | 2015-11-25 | 2017-12-08 | 中国石油集团钻井工程技术研究院 | Accelerator for neutron production for measurement while drilling |
| CN108798653A (en) * | 2017-04-28 | 2018-11-13 | 中石化石油工程技术服务有限公司 | One kind is with brill controllable neutron source independent source bin device |
| CN107829728A (en) * | 2017-10-20 | 2018-03-23 | 中国石油天然气集团公司 | Multi-source is away from brill neutron porosity measurement device and its measuring method |
| CN110056341A (en) * | 2018-01-18 | 2019-07-26 | 中石化石油工程技术服务有限公司 | One kind is with brill controllable source density logging device |
| CN111119871A (en) * | 2018-10-31 | 2020-05-08 | 中石化石油工程技术服务有限公司 | Measuring device for measuring formation density value and measuring method thereof |
| CN111119871B (en) * | 2018-10-31 | 2023-12-26 | 中国石油化工集团有限公司 | Measuring device and measuring method for measuring stratum density value |
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Effective date of registration: 20220130 Address after: 100029 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee after: Sinopec Jingwei Co.,Ltd. Patentee after: Geological measurement and Control Technology Research Institute of Sinopec Jingwei Co.,Ltd. Address before: 100029 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Patentee before: SINOPEC OILFIELD SERVICE Corp. Patentee before: Drilling Technology Research Institute of Sinopec Shengli Petroleum Engineering Co., Ltd |