CN203867565U - While-drilling neutron logger device - Google Patents
While-drilling neutron logger device Download PDFInfo
- Publication number
- CN203867565U CN203867565U CN201420185929.1U CN201420185929U CN203867565U CN 203867565 U CN203867565 U CN 203867565U CN 201420185929 U CN201420185929 U CN 201420185929U CN 203867565 U CN203867565 U CN 203867565U
- Authority
- CN
- China
- Prior art keywords
- neutron
- drilling
- boring
- drill collar
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005553 drilling Methods 0.000 title abstract description 19
- 239000000523 sample Substances 0.000 claims abstract description 9
- 239000000956 alloy Substances 0.000 claims abstract description 6
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000002002 slurry Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract 1
- 230000002285 radioactive effect Effects 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 229910052790 beryllium Inorganic materials 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 229910052695 Americium Inorganic materials 0.000 description 1
- LXQXZNRPTYVCNG-UHFFFAOYSA-N americium atom Chemical compound [Am] LXQXZNRPTYVCNG-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical group [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 231100000206 health hazard Toxicity 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
- 229910052722 tritium Inorganic materials 0.000 description 1
Abstract
The utility model relates to a while-drilling neutron logger device which comprises a drill collar casing and a while-drilling neutron probe. The while-drilling neutron probe is fixed into U-shaped grooves through clamping devices, and the U-shaped grooves are formed in the two ends of the drill collar casing. The while-drilling neutron probe is composed of an upper plug, a neutron probe casing and a lower plug which are connected. A neutron generator, a neutron detector, a detector shielding body and a radiator are arranged in the neutron probe casing. A slurry backflow channel is formed in the drill collar casing, the center of the slurry backflow channel and the center of the drilling collar casing don't share the same axis, and a plurality of alloy blocks are arranged on the surface of the drilling collar casing in a subsection mode. The while-drilling neutron logger device uses a drilling collar type installation structure, two lateral threads are drilling collar threads, and the while-drilling neutron logger device is convenient to be in suspended connection with other drilling collar instruments. The while-drilling neutron logger device is high in logging accuracy, high in flexibility in measuring the porosity and long in service life of a drilling collar.
Description
Technical field
The utility model relates to the wireless drilling logging instrument field for geosteering in oil drilling industry, relates in particular to a kind of novel with boring neutron well logging instrument apparatus.
Background technology
In petroleum industry geologic steering drilling, be used at drilling process with boring neutron logging instrument, the measuring well degree of porosity on stratum near the eyes in real time, thus differentiate oil-gas Layer, calculate the oil productive capacity on stratum.
In using at present, use a neutron source with boring neutron logging instrument, and placing 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 conventionally, so hydrogen content is relevant with the degree of porosity on stratum, calculate thus formation porosity.Use at present with boring neutron logging instrument, what neutron source adopted is that neutron source is accelerated in americium-beryllium neutron source or the reflection of deuterium-tritium, the energetic ion that utilizes the nuclear decay of radio isotope americium to radiate due to americium-beryllium neutron source removes to bombard target material beryllium core, realize the nuclear reaction of given-ioff neutron, even if also can produce strong radioactivity when therefore he does not move, although adopt multiple radiation barrier device and measure, but execute-in-place environmental limitations the use of effective preventive means, be usually hand operation, be difficult to avoid operating personnel to cause health hazards.In addition, the as easy as rolling off a log radioactive sources lost that makes of operating condition of well logging during complexity, and the recovery of radioactive source is more difficult, if in use cannot salvage because down-hole equipment bit freezing makes radioactive source fall into well, radioactive source meeting severe contamination stratum, even makes whole oily district scrap.
Summary of the invention
Technical problem to be solved in the utility model is for problems of the prior art, provide a kind of overcome use americium-beryllium neutron source to bring the novel with boring neutron well logging instrument apparatus of harm to human and environment.
For achieving the above object, the utility model is realized by the following technical solutions:
A kind of with boring neutron well logging instrument apparatus, comprise drill collar shell and with boring Neutron two parts; Wherein, be fixed on by clamping device in the U-shaped groove at drill collar shell two ends with boring Neutron; Be formed by connecting by upper plug head, Neutron shell, lower end cap with boring Neutron, accelerator for neutron production, neutron detector, probe shield and radiator are set in Neutron shell; Mud refluence passage is set on drill collar shell; The some alloy blocks of drill collar case surface subsection setup.
Described clamping device is made up of upper fixing hoop, fixation clamp, lower fixing hoop, and clamping device is screwed on drill collar shell.
Described U-shaped groove arranges along drill collar shell cylindrical, is no more than position of center line, in the middle of the U-shaped groove in two ends, does not communicate.
Described mud refluence passage is eccentrically set on drill collar shell, and the center of mud refluence passage and drill collar shell center be not on same axis.
Described is connected by thread bush with Neutron shell with boring lower end cap on Neutron, and upper lower end cap inside all arranges sealing-plug, and neutron detector is far and near two thermal-neutron detectors.
Described is 33mm with boring Neutron shell wall thickness.
Compared with prior art, the beneficial effects of the utility model are:
1, dislike slightly working environment for adapting to down-hole, the utility model adopts drill collar formula mounting structure, and both sides screw thread is drill collar threads, conveniently articulates with other instruments of drill collar.
2, the utility model adopts two to improve logging accuracy with boring Neutron, measures degree of porosity highly sensitive.
3, drill collar case surface segmentation embedded alloy piece of the present utility model, increases drill collar application life.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is with boring Neutron structural representation.
In figure: 1-drill collar shell 2-is with boring fixing hoop under the upper fixing hoop 4-of Neutron 3-
5-fixation clamp 10-alloy block 15-mud refluence passage 18-upper plug head
19-thread bush 20-Neutron shell 21-sealing-plug 22-lower end cap
23-accelerator for neutron production 24-neutron detector 25-probe shield 26-radiator
27-circuit framework
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is further illustrated:
As shown in Figure 1, be formed by connecting by upper plug head 18, Neutron shell 20, lower end cap 22 with boring Neutron 2, interior accelerator for neutron production 23, neutron detector 24, probe shield 25 and the radiator 26 of arranging of Neutron shell 20; Upper lower end cap inside is all installed sealing-plug 21 and is sealed.To pack in drill collar shell 1U type groove with boring Neutron 2, upper fixing hoop 3, fixation clamp 5, lower fixing hoop 4 will be installed on drill collar shell 1 with screw, will be fixing with boring Neutron 2, prevent that mud from bracing drill collar inside, causes instrument damage.Be designed to 33mm with the wall thickness that bores Neutron shell 20, can meet the requirement of anti-down-hole slurry high pressure.With boring neutron drill collar surface segment embedded alloy piece 10, increase drill collar application life.Drill collar shell 1 center deviation has a main flow slurry channel 15, and refluence drilling fluid is from ground to drill bit, and mud refluence passage 15 center and drill collar shell 1 center be not on same axis.
Above, be only general principle of the present utility model, not the utility model imposed any restrictions, everyly according to the utility model, it is carried out to equivalent variations and modification, all within the category of the art of this patent protection scheme.
Claims (6)
1. with boring a neutron well logging instrument apparatus, it is characterized in that, comprise drill collar shell and with boring Neutron two parts; Wherein, be fixed on by clamping device in the U-shaped groove at drill collar shell two ends with boring Neutron; Be formed by connecting by upper plug head, Neutron shell, lower end cap with boring Neutron, accelerator for neutron production, neutron detector, probe shield and radiator are set in Neutron shell; Mud refluence passage is set on drill collar shell; The some alloy blocks of drill collar case surface subsection setup.
2. one according to claim 1, with boring neutron well logging instrument apparatus, is characterized in that, described clamping device is made up of upper fixing hoop, fixation clamp, lower fixing hoop, and clamping device is screwed on drill collar shell.
3. one according to claim 1, with boring neutron well logging instrument apparatus, is characterized in that, described U-shaped groove arranges along drill collar shell cylindrical, is no more than position of center line, in the middle of the U-shaped groove in two ends, does not communicate.
4. one according to claim 1, with boring neutron well logging instrument apparatus, is characterized in that, described mud refluence passage is eccentrically set on drill collar shell, and the center of mud refluence passage and drill collar shell center be not on same axis.
5. one according to claim 1 is with boring neutron well logging instrument apparatus, it is characterized in that, described is connected by thread bush with Neutron shell with boring lower end cap on Neutron, and upper lower end cap inside all arranges sealing-plug, and neutron detector is far and near two thermal-neutron detectors.
6. one according to claim 1, with boring neutron well logging instrument apparatus, is characterized in that, described is 33mm with boring Neutron shell wall thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420185929.1U CN203867565U (en) | 2014-04-16 | 2014-04-16 | While-drilling neutron logger device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420185929.1U CN203867565U (en) | 2014-04-16 | 2014-04-16 | While-drilling neutron logger device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203867565U true CN203867565U (en) | 2014-10-08 |
Family
ID=51648535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420185929.1U Expired - Lifetime CN203867565U (en) | 2014-04-16 | 2014-04-16 | While-drilling neutron logger device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203867565U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN112130194A (en) * | 2020-08-20 | 2020-12-25 | 中国原子能科学研究院 | Quick verifying attachment of neutron detector |
-
2014
- 2014-04-16 CN CN201420185929.1U patent/CN203867565U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112130194A (en) * | 2020-08-20 | 2020-12-25 | 中国原子能科学研究院 | Quick verifying attachment of neutron detector |
| CN112130194B (en) * | 2020-08-20 | 2024-02-20 | 中国原子能科学研究院 | Neutron detector rapid inspection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103410516B (en) | Minor diameter tunnel full face tunneling surrouding rock deformation early warning engineering method | |
| CN100497885C (en) | Deuterium-deuterium controllable compensating neutron well logging instrument during drilling | |
| Zhang et al. | Wear analysis of disc cutters of full face rock tunnel boring machine | |
| CN104747179A (en) | Stratum density measuring while drilling instrument based on deuterium-tritium accelerator neutron source | |
| CN203867565U (en) | While-drilling neutron logger device | |
| CN103321636A (en) | Non-radioactivity tracing flow well logging method and process based on pulse neutron technology | |
| CN202954810U (en) | Deuterium tritium controllable source neutron porosity logging instrument | |
| CN106032750B (en) | Geological logging instrument based on drilling energy spectrum | |
| CN2900786Y (en) | Deuterium-deuterium controlable compensation neutron well logging instrument while drilling | |
| CN102817606A (en) | Well trajectory while drilling detector and well trajectory while drilling detection monitoring method | |
| CN201972699U (en) | Multi-detector while drilling neutron logging device | |
| CN208564530U (en) | One kind is with brill controllable source density logging device | |
| CN102953689B (en) | Radioactive source bin and drill collar with same | |
| US9810807B2 (en) | Methods and systems for detecting epithermal and thermal neutrons | |
| CN203870273U (en) | High-resolution natural gamma-ray logging instrument | |
| CN201428453Y (en) | Underground artificial radioactivity reservoir fluid analyzer | |
| CN2900785Y (en) | Movable natural Gamma scale well while drilling | |
| CN101832129A (en) | Downhole manual radioactive reservoir fluid analyzer | |
| CN110056341A (en) | One kind is with brill controllable source density logging device | |
| CN206928945U (en) | One kind is with brill controllable neutron source independent source bin device | |
| CN204116626U (en) | Thermal neutron bell housing on well logger bearing shell | |
| CN100552473C (en) | The neutron spectrum logging system | |
| CN108798653A (en) | One kind is with brill controllable neutron source independent source bin device | |
| Ma et al. | Advanced geological detection for tunneling in karst area | |
| Zhang et al. | Detection and evaluation of crack development near the fault zone under the influence of coal mining |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |