CN205936588U - Annotate fixed profile fiber temperature measurement technology tubular column of vapour well - Google Patents

Annotate fixed profile fiber temperature measurement technology tubular column of vapour well Download PDF

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Publication number
CN205936588U
CN205936588U CN201620822202.9U CN201620822202U CN205936588U CN 205936588 U CN205936588 U CN 205936588U CN 201620822202 U CN201620822202 U CN 201620822202U CN 205936588 U CN205936588 U CN 205936588U
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temperature
optical fiber
tubing
measuring optical
fiber
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CN201620822202.9U
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Chinese (zh)
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王改香
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Dongying Shi Shi Chuang Petroleum Technology Co Ltd
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Dongying Shi Shi Chuang Petroleum Technology Co Ltd
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Abstract

The utility model discloses an annotate fixed profile fiber temperature measurement technology tubular column of vapour well, including heat insulation oil pipe, thermal packer, steam flow control valve, temperature measurement optical fiber in the pit, the thermal packer is connected to the heat insulation oil pipe lower extreme, the thermal packer lower extreme is through a tubing nipple link bit in the control valve of steam flow in the pit of oil reservoir position, the 2nd tubing nipple is connected to steam flow control valve lower extreme in the pit, the port shutoff has the tubular column plug under the 2nd tubing nipple, the temperature measurement optical fiber lower extreme is located in the pit the oil reservoir position in the steam flow control valve outside, and the upper end is then passed through out the thermal packer and is got into and connect subaerial distributed optical fiber data acquisition system in the aerial whereabouts of oil sleeve annulus always. The heat insulation oil pipe outside sets up the thermal -insulated compensator of telescopic. Be provided with in the thermal packer and insert sealing device. The utility model discloses real time kinematic monitoring pit shaft separates heat tube outer wall and the full pit shaft of oil reservoir section, noiseless dynamic well temperature.

Description

Steam injection well fixed profile fiber thermometric process pipe string
Technical field
This utility model is related to oilfield test operation, specifically steam injection well fixed profile fiber thermometric process duct Post.
Background technology
Carry out that the test of oil well distributed temperature is that developed recently gets up using the distribution type fiber-optic of capillary tube armouring one New technique, it can supervise the Temperature Distribution of full hole in the case of not disturbing oil temperature field, can obtain other test sides The real-time subsurface information that method cannot obtain, is a breakthrough of oil well test technology.
Down-hole temperature instrumentation all has a common drawback at present, can only measure the temperature of certain point in any time, Test FR temperature, point type senses to move back and forth in well and just enables, so unavoidably destroy well interior temperature Degree field, and difficulty measures the temperature value of each point synchronization, if place a temperature in the position of each measurement temperature visited Head, had so both facilitated and uneconomical in actual installation, using during with maintenance.Optical fiber distributed temperature measuring technology can overcome mesh The deficiency of front test mode.Oil well distribution type fiber-optic measuring technology is different from conventional all temperature survey modes, and it can be Do not disturb the temperature value monitoring any point in pit shaft in the case of oil temperature field in synchronization, be not required to measuring instrument in well In move back and forth the temperature profile that can measure down-hole, and then analyze the steam entry profile of thermal production well and production profile it is also possible to survey Amount thermal production well annular space and heat-insulated tube wall temperature section, analysis instlated tubular effect of heat insulation etc..The meaning of therefore this patent is can The data that cannot be obtained in the traditional thermometric mode of acquisition, is conventional well particularly thermal production well and the analysis of horizontal well performance provides more Preferably means of testing, it is therefore necessary to vertical topic carries out the research of this project.
Utility model content
The purpose of this utility model is to provide steam injection well fixed profile fiber thermometric process pipe string, realizes oil field directly oblique The monitoring of one of well steam injection process heat-insulated steam injection and full Wellbore Temperature Field entirely, thus reaching in the case of heat-insulated steam injection entirely, The full pit shaft of real-time dynamic monitoring thermally insulating the borehole pipe outer wall and oil layer section, the purpose of glitch-free dynamic well temperature.
In order to reach above-mentioned purpose, this utility model employs following technical scheme, and the fixed profile fiber of steam injection well is surveyed Warm process pipe string, including insulated tubing, thermal packer, underground steam flow control valve, temperature-measuring optical fiber, under described insulated tubing End connects thermal packer, and described thermal packer lower end is passed through the first tubing nipple and connected the underground steam being located at oil reservoir position Flow control valve, described underground steam flow control valve lower end connects the second tubing nipple, described second tubing nipple lower end mouth Closure has tubing string plug;Described temperature-measuring optical fiber lower end is located at the oil reservoir position outside underground steam flow control valve, and upper end is then worn Run off thermal packer to enter in oil jacket annular space.
Described insulated tubing upper end hangs on insulated tubing suspension arrangement on the ground, ground is additionally provided with distributed Fiber data acquisition system, described temperature-measuring optical fiber continues up and passes insulated tubing suspension arrangement successively, distribution type fiber-optic passes through It is connected to distribution type fiber-optic data collecting system after sealer;Described insulated tubing suspension arrangement upper end connects thermal recovery steam injection well Mouthful.
Telescopic heat insulation compensator is set outside described insulated tubing.
It is provided with insertion sealing device in described thermal packer.
Temperature-measuring optical fiber above thermal packer distributed temperature measuring optical fiber in oil jacket annular space, positioned at thermal packer The temperature-measuring optical fiber of lower section, temperature-measuring optical fiber distributed at oil reservoir, described second tubing nipple is provided with for fixing oil reservoir punishment Distributed temperature-measuring optical fiber support cylinder at the oil reservoir of cloth temperature-measuring optical fiber.
Described tubing string plug will at least keep with a distance from 10 meters from artificial bottom of a well.
Compared to prior art, this utility model has the advantages that:
(1) steam injection process entirely heat-insulated, it is ensured that the steam from well head injection is directly entered oil reservoir heated oil reservoir, effectively drops Invalid heat loss low in calories;
(2) pass through the distribution type fiber-optic in prop barrel at steam injection string outer wall and oil reservoir, real-time monitoring oil sets annular space and The temperature change of oil layer section, thus effective evaluation steam injection efficiency and oil reservoir steam entry profile situation.
Brief description
Fig. 1 is the structural representation of steam injection well fixed profile fiber thermometric process pipe string.
In figure:1st, distribution type fiber-optic data collecting system;2nd, thermal recovery steam injection well head;3rd, distribution type fiber-optic passes through sealer; 4th, insulated tubing suspension arrangement;5th, insulated tubing;6th, distributed temperature measuring optical fiber in oil jacket annular space;7th, telescopic heat-insulated compensation Device;8th, thermal packer;9th, insert sealing device;10th, underground steam flow control valve;11st, distributed temperature-measuring optical fiber at oil reservoir Support cylinder;12nd, tubing string plug;13rd, distributed temperature-measuring optical fiber at oil reservoir;14th, oil reservoir;15th, artificial bottom of a well.
Specific embodiment
Relevant detailed description of the present utility model and technology contents, cooperation brief description is as follows, but accompanying drawing only provides ginseng Examine and purposes of discussion, be not used for this utility model is any limitation as.
According to Fig. 1, steam injection well fixed profile fiber thermometric process pipe string, including insulated tubing 5, thermal packer 8, insert Enter sealing device 9, underground steam flow control valve 10, temperature-measuring optical fiber, described insulated tubing lower end connects thermal packer, described Thermal packer lower end is passed through the first tubing nipple and is connected the underground steam flow control valve 10 being located at oil reservoir position, described down-hole Flow adjusting valve for steam lower end connects the second tubing nipple, and described second tubing nipple lower end mouth closure has tubing string plug 12;Institute State oil reservoir 14 position outside underground steam flow control valve for the temperature-measuring optical fiber lower end, upper end is then passed through out thermal packer and entered Enter in oil jacket annular space.Described insulated tubing upper end hangs on insulated tubing suspension arrangement 4 on the ground, and ground also sets up It is distributed formula fiber data acquisition system 1, described temperature-measuring optical fiber continues up and passes insulated tubing suspension arrangement, distributed successively Optical fiber is connected to distribution type fiber-optic data collecting system after passing through sealer 3;Described insulated tubing suspension arrangement upper end connects heat Adopt steam injection well head 2.Telescopic heat insulation compensator 7 is set outside described insulated tubing.It is provided with slotting in described thermal packer Enter sealing device 9.Temperature-measuring optical fiber above thermal packer distributed temperature measuring optical fiber 6 in oil jacket annular space, positioned at thermal recovery Temperature-measuring optical fiber below packer, temperature-measuring optical fiber 13 distributed at oil reservoir, described second tubing nipple is provided with for fixing Distributed temperature-measuring optical fiber support cylinder 11 at the oil reservoir of distributed temperature-measuring optical fiber at oil reservoir.
First by temperature-measuring optical fiber support cylinder 11 distributed at tubing string plug 12, oil reservoir, underground steam stream during normal operation Control valve 10, thermal packer 8 etc. are sequentially connected in order uses oil reservoir position, wherein tubing string plug under tubing string lower going-into-well afterwards 12 will keep with a distance from more than 10 meters from artificial bottom of a well 15.Temperature-measuring optical fiber 13 distributed at oil reservoir is also secured at oil reservoir punishment simultaneously On cloth temperature-measuring optical fiber support cylinder 11, and ensure its fixed be no wound around, then temperature-measuring optical fiber 13 distributed at oil reservoir is passed through Go out thermal packer 8 to enter in oil jacket annular space.Then continue to down enter to insert sealing device 9, by oil reservoir part and top tubing string Separate it is ensured that flowing directly into underground steam flow-control from the steam of top injection by inserting sealing device 9 internal pipeline Valve 10 simultaneously enters oil reservoir 14, reaches the purpose of heated oil reservoir 14.Under enter to insert sealing device 9 after, then enter insulated tubing 5 down, Then enter down telescopic heat insulation compensator 7, then enter down insulated tubing 5 to well head at insulated tubing suspension arrangement 4 enter Row hangs, during following instrument under side, while distributed temperature measuring optical fiber 6 in oil jacket annular space is fixed on above instrument and tubing string Outer surface.In oil jacket annular space, distributed temperature measuring optical fiber 6 is passed through by big four one end of thermal recovery steam injection well head 2, and by installing Distribution type fiber-optic in four-way exit passes through sealer 3 and draws, and is thus connected to distribution type fiber-optic data collecting system 1 and carries out The functions such as the collection of data, storage, display and wireless remote transmission.
Described temperature-measuring system of distributed fibers is to create Stokes and anti-Stokes component using Raman scattering, after To the stokes component of scattered light with anti-Stokes component intensity ratio it is, by the corresponding relation of ratio and temperature, real Existing optical fiber temperature-measurement.
Formula:
Wherein, λsFor the Stokes wavelength of incident illumination, λaFor the Stokes wavelength of reflected light, h is Planck's constant;c It is the light velocity;V is the light frequency of stimulated radiation;K is Boltzmann constant;T is absolute temperature.
Distribution type fiber-optic data collecting system, is prior art, connects and use after purchase.For example:The azure bodyguard in Beijing " distributed optical fiber temperature monitoring system (DTS) " of Science and Technology Ltd.'s exploitation is namely based on distributed optical fiber temperature measurement data acquisition System.
The foregoing is only preferred embodiment of the present utility model, be not used to limit the scope of the claims of the present utility model, its He uses the equivalence changes of patent spirit of the present utility model, all should all belong to the scope of the claims of the present utility model.

Claims (6)

1. steam injection well fixed profile fiber thermometric process pipe string is it is characterised in that include insulated tubing, thermal packer, well Lower flow adjusting valve for steam, temperature-measuring optical fiber, described insulated tubing lower end connects thermal packer, and described thermal packer lower end leads to Cross the first tubing nipple and connect the underground steam flow control valve being located at oil reservoir position, described underground steam flow control valve lower end Connect the second tubing nipple, described second tubing nipple lower end mouth closure has tubing string plug;Described temperature-measuring optical fiber lower end is located at well Oil reservoir position outside lower flow adjusting valve for steam, upper end is then passed through out thermal packer and is entered in oil jacket annular space.
2. the fixed profile fiber thermometric process pipe string of steam injection well according to claim 1 is it is characterised in that described heat-insulated Oil pipe upper end hangs on insulated tubing suspension arrangement on the ground, and ground is additionally provided with distribution type fiber-optic data acquisition system System, described temperature-measuring optical fiber continues up and passes insulated tubing suspension arrangement successively, distribution type fiber-optic is connected to after passing through sealer Distribution type fiber-optic data collecting system;Described insulated tubing suspension arrangement upper end connects thermal recovery steam injection well head.
3. the fixed profile fiber thermometric process pipe string of steam injection well according to claim 1 and 2 is it is characterised in that described Telescopic heat insulation compensator is set outside insulated tubing.
4. the fixed profile fiber thermometric process pipe string of steam injection well according to claim 1 and 2 is it is characterised in that described It is provided with insertion sealing device in thermal packer.
5. the fixed profile fiber thermometric process pipe string of steam injection well according to claim 1 and 2 is it is characterised in that be located at Temperature-measuring optical fiber above thermal packer is distributed temperature measuring optical fiber in oil jacket annular space, the temperature measuring optical below thermal packer Fibre is distributed temperature-measuring optical fiber at oil reservoir, described second tubing nipple is provided with for fixing oil reservoir punishment cloth temperature-measuring optical fiber Oil reservoir at distributed temperature-measuring optical fiber support cylinder.
6. the fixed profile fiber thermometric process pipe string of steam injection well according to claim 1 and 2 is it is characterised in that described Tubing string plug will at least keep with a distance from 10 meters from artificial bottom of a well.
CN201620822202.9U 2016-07-29 2016-07-29 Annotate fixed profile fiber temperature measurement technology tubular column of vapour well Active CN205936588U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107327296A (en) * 2017-07-28 2017-11-07 中国石油天然气股份有限公司 Underground temperature measuring equipment and method
CN108150156A (en) * 2017-12-26 2018-06-12 贵州航天凯山石油仪器有限公司 A kind of horizontal well temperature profile tester method for synchronizing time
CN111878030A (en) * 2020-09-07 2020-11-03 中国石油集团渤海钻探工程有限公司 Oil extraction construction method for stabilizing oil and controlling water and monitoring underground fluid in real time

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107327296A (en) * 2017-07-28 2017-11-07 中国石油天然气股份有限公司 Underground temperature measuring equipment and method
CN108150156A (en) * 2017-12-26 2018-06-12 贵州航天凯山石油仪器有限公司 A kind of horizontal well temperature profile tester method for synchronizing time
CN111878030A (en) * 2020-09-07 2020-11-03 中国石油集团渤海钻探工程有限公司 Oil extraction construction method for stabilizing oil and controlling water and monitoring underground fluid in real time

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