CN207315355U - A kind of pulsed neutron saturation degree logging instrument underground TT＆C system - Google Patents
A kind of pulsed neutron saturation degree logging instrument underground TT＆C system Download PDFInfo
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- CN207315355U CN207315355U CN201721374408.0U CN201721374408U CN207315355U CN 207315355 U CN207315355 U CN 207315355U CN 201721374408 U CN201721374408 U CN 201721374408U CN 207315355 U CN207315355 U CN 207315355U
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Abstract
A kind of pulsed neutron saturation degree logging instrument underground TT＆C system, including pressure part, the pressure part includes pressure-bearing shell, pressure-bearing shell lower end is blocked up equipped with tail, pressure-bearing shell upper end is equipped with connector, the tail blocks end and is equipped with drive control device, drive control device upper end is equipped with accelerator for neutron production, accelerator for neutron production upper end is equipped with shielding device, shielding device upper end is equipped with attemperator, the attemperator includes insulation cladding, the insulation cladding lower end is equipped with probe assembly, probe assembly upper end is equipped with observing and controlling component and communication simulated assembly, communication simulated assembly upper end is equipped with heat absorbing member, heat absorbing member upper end is equipped with thermal insulation barriers, the attemperator upper end is equipped with bus filter component and power module.The utility model is simple in structure, shortens the length of downhole instrument, improves the reliability of communication, improves downhole instrument operating temperature, has stronger practicality.
Description
Technical field
Logging instrument underground control system used in oil and other technical field geological prospectings is the utility model is related to, especially
It is related to a kind of pulsed neutron saturation degree logging instrument underground TT＆C system.
Background technology
In petroleum exploration and development, the radioactivity reservoir performance monitor technology based on pulsed neutron, can determine that oil reservoir, provides residue
Oily saturation degree, water flooding degree, formation void degree, formation lithology and constituent content scale parameter, for oil field development is taped the latent power, oil reservoir changes
Make, distinguish oil-water interfaces, determine that water logging grade, stratum element analysis etc. provide foundation.In petroleum exploration and development, based on pulse
The radioactivity reservoir performance monitor technology of neutron, can determine that oil reservoir, provides remaining oil saturation, water flooding degree, formation void degree, stratum
Lithology and constituent content scale parameter, tap the latent power for oil field development, oil formation improvement, distinguish oil-water interfaces, determine water logging grade, stratum
Elemental analysis etc. provides foundation.
Pulsed neutron saturation degree logging instrument injects stratum with certain frequency transmitting high energy 14MeV pulsed neutron bombardments stratum
Fast neutron, have an effect and switching part energy with the atomic nucleus of stratum element, the atomic nucleus for obtaining energy is activated, and locates
In unstable excited state, the stable state nuclear physics of oneself can be returned within the extremely short time and be known as de excitation, penetrated with gamma
The mode of line releases energy.This gamma rays produced by neutron induction is known as secondary gamma ray.Secondary gamma ray
Energy is related with nuclear characteristic, is known as characteristic gamma ray.The fast neutron original with element in the earth formation that energy is 14MeV
Daughter nucleus effect is mainly inelastic collision, elastic collision, capture and activation etc., and produces non-resilient, capture and activation gamma-rays.
Since the characteristic gamma ray energy that each element produces in stratum is different, the characteristic gamma produced to each element in stratum
Ray is acquired to be analyzed with energy intensity, it is possible to determines the content of element species contained in stratum and various elements.
Pulsed neutron saturation degree logging instrument is used for the reservoir performance monitors such as remaining oil saturation, is the preferable means of current accuracy of measurement.
Existing cased well saturation degree logging instrument has many deficiencies in practical logging application.For example downhole instrument is divided into
Half-section and lower half-section, when well logging, need field joint, inconvenient；Downhole instrument length is too long, and well head operating difficulties, especially goes into the well
Easily blocked in casing has deformation or the inclined shaft for having curvature afterwards, produce accident；Downhole instrument work maximum temperature only has 125 DEG C,
Application range is limited.
Utility model content
The utility model provides a kind of pulsed neutron saturation degree logging instrument underground TT＆C system, to solve the above-mentioned prior art
Deficiency, shorten the length of downhole instrument, improve the reliability of communication, improve downhole instrument operating temperature, have it is stronger
Practicality.
In order to realize the purpose of this utility model, intend using following technology：
A kind of pulsed neutron saturation degree logging instrument underground TT＆C system, including pressure part, the pressure part include pressure-bearing shell,
Pressure-bearing shell lower end is blocked up equipped with tail, and pressure-bearing shell upper end is equipped with connector, and the tail blocks end and is equipped with drive control device, drive control device
Upper end is equipped with accelerator for neutron production, and accelerator for neutron production upper end is equipped with shielding device, and shielding device upper end is equipped with attemperator, the insulation dress
Put including insulation cladding, the insulation cladding lower end is equipped with probe assembly, and probe assembly upper end is equipped with observing and controlling component and communication simulation group
Part, communication simulated assembly upper end are equipped with heat absorbing member, and heat absorbing member upper end is equipped with thermal insulation barriers, and the attemperator upper end is filtered equipped with bus
Ripple component and power module.
Further, the power module is connected with the bus filter component, and the bus filter component is sent out with neutron
Raw device and drive control device connect respectively, and accelerator for neutron production and drive control device are connected with each other, and the bus filter component is again
It is connected with communication simulated assembly, the communication simulated assembly is connected respectively with observing and controlling component and probe assembly.
Further, the pressure-bearing shell is made of the pressure-resistant stainless steel not less than 60MPa.
The advantages of above-mentioned technical proposal, is：
1st, the attemperator being equipped with according to the utility model, it is possible to increase the operating temperature of downhole instrument；
2nd, the communication simulated assembly being equipped with according to the utility model attemperator, can improve the reliability of communication；
3rd, the single-unit structure used according to the utility model greatly shortens the length of whole downhole instrument, so that well
Lower instrument is easy to operate；
4th, the utility model is simple in structure, shortens the length of downhole instrument, improves the reliability of communication, improves underground
Instrument operating temperature, has stronger practicality.
Brief description of the drawings
In order to make the purpose of this utility model, technical solution and advantage clearer, below in conjunction with attached drawing to this practicality
It is new to be described in further detail.Wherein：
Fig. 1 shows the utility model structure chart.
Fig. 2 shows the utility model annexation figure.
Embodiment
As shown in Fig. 1 ~ Fig. 2, a kind of pulsed neutron saturation degree logging instrument underground TT＆C system, including pressure part 1, it is described to hold
Casting die 1 includes pressure-bearing shell 10, and 10 lower end of pressure-bearing shell blocks up 11 equipped with tail, and 10 upper end of pressure-bearing shell is equipped with connector 12, and the tail blocks up 11
Upper end is equipped with drive control device 2, and 2 upper end of drive control device is equipped with accelerator for neutron production 3, and 3 upper end of accelerator for neutron production is equipped with shielding device
4,4 upper end of shielding device is equipped with attemperator 5, and the attemperator 5 includes insulation cladding 50, and 50 lower end of insulation cladding is equipped with probe
Component 55,55 upper end of probe assembly are equipped with observing and controlling component 53 and communication simulated assembly 54, and 54 upper end of communication simulated assembly, which is equipped with, inhales
Warmware 52,52 upper end of heat absorbing member are equipped with thermal insulation barriers 51, and 5 upper end of attemperator is equipped with bus filter component 6 and power module
7。
The power module 7 is connected with the bus filter component 6, the bus filter component 6 and accelerator for neutron production 3 and
Drive control device 2 connects respectively, and accelerator for neutron production 3 and drive control device 2 are connected with each other, the bus filter component 6 again with
Communication simulated assembly 54 connects, and the communication simulated assembly 54 is connected respectively with observing and controlling component 53 and probe assembly 55.
The pressure-bearing shell 10 is made of the pressure-resistant stainless steel not less than 60MPa.
When the utility model is used, pulsed neutron is launched by drive control device 2, control accelerator for neutron production 3 first；Visit
Head assembly 55 receives neutron and the feature gamma spectrum excited after stratum element effect, and carries out opto-electronic conversion and corresponded to for respective element
Electric signal；Measurement working status of the observing and controlling component 53 to downhole instrument correct and adjust accordingly, controls the work of downhole instrument
Operation mode, and gather data, environmental parameter and working status of the gamma spectrum on sidewall etc..Then observing and controlling component 53 passes data
Communication simulated assembly 54 is transported to, electric signal is uploaded to ground control system by communication simulated assembly 54, and worked in downhole instrument
Being filtered to drive control device 2, accelerator for neutron production 3 and communication simulated assembly 54 of bus filter component 6 in journey.Wherein shield
Cover device 4 ripple occurred in accelerator for neutron production 3 can be carried out shielding prevent to main signal produce interference.
The above is only the preferred embodiment of the present invention, is not intended to limit the present invention, it is clear that this area
Technical staff the spirit and scope of various modification and variations without departing from the utility model can be carried out to the utility model.This
Sample, if these modifications and variations of the utility model belong to the utility model claims and its equivalent technologies scope it
Interior, then the utility model is also intended to comprising including these modification and variations.
Claims (3)
1. a kind of pulsed neutron saturation degree logging instrument underground TT＆C system, it is characterised in that including pressure part（1）, the pressure-bearing
Part（1）Including pressure-bearing shell（10）, pressure-bearing shell（10）Lower end is blocked up equipped with tail（11）, pressure-bearing shell（10）Upper end is equipped with connector（12）,
The tail blocks up（11）Upper end is equipped with drive control device（2）, drive control device（2）Upper end is equipped with accelerator for neutron production（3）, neutron generation
Device（3）Upper end is equipped with shielding device（4）, shield device（4）Upper end is equipped with attemperator（5）, the attemperator（5）Including insulation cladding
（50）, the insulation cladding（50）Lower end is equipped with probe assembly（55）, probe assembly（55）Upper end is equipped with observing and controlling component（53）With it is logical
Interrogate simulated assembly（54）, communicate simulated assembly（54）Upper end is equipped with heat absorbing member（52）, heat absorbing member（52）Upper end is equipped with thermal insulation barriers
（51）, the attemperator（5）Upper end is equipped with bus filter component（6）And power module（7）.
2. pulsed neutron saturation degree logging instrument underground TT＆C system according to claim 1, it is characterised in that the power supply
Module（7）With the bus filter component（6）Connection, the bus filter component（6）With accelerator for neutron production（3）And drive control
Device（2）Connect respectively, and accelerator for neutron production（3）And drive control device（2）It is connected with each other, the bus filter component（6）And with
Communicate simulated assembly（54）Connection, the communication simulated assembly（54）With observing and controlling component（53）And probe assembly（55）Connect respectively
Connect.
3. pulsed neutron saturation degree logging instrument underground TT＆C system according to claim 1, it is characterised in that the pressure-bearing
Shell（10）It is made of the pressure-resistant stainless steel not less than 60MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721374408.0U CN207315355U (en) | 2017-10-24 | 2017-10-24 | A kind of pulsed neutron saturation degree logging instrument underground TT＆C system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721374408.0U CN207315355U (en) | 2017-10-24 | 2017-10-24 | A kind of pulsed neutron saturation degree logging instrument underground TT＆C system |
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| Publication Number | Publication Date |
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| CN207315355U true CN207315355U (en) | 2018-05-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707362A (en) * | 2019-01-24 | 2019-05-03 | 中国石油天然气股份有限公司 | Fixed-point fracturing method for residual oil in longitudinal single sand body of mining and submerging old well reservoir |
-
2017
- 2017-10-24 CN CN201721374408.0U patent/CN207315355U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707362A (en) * | 2019-01-24 | 2019-05-03 | 中国石油天然气股份有限公司 | Fixed-point fracturing method for residual oil in longitudinal single sand body of mining and submerging old well reservoir |
| CN109707362B (en) * | 2019-01-24 | 2021-01-01 | 中国石油天然气股份有限公司 | Fixed-point fracturing method for residual oil in longitudinal single sand body of mining and submerging old well reservoir |
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