CN104895559B - Oil/gas Well downhole optic fiber temperature, pressure tester - Google Patents
Oil/gas Well downhole optic fiber temperature, pressure tester Download PDFInfo
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- CN104895559B CN104895559B CN201510275374.9A CN201510275374A CN104895559B CN 104895559 B CN104895559 B CN 104895559B CN 201510275374 A CN201510275374 A CN 201510275374A CN 104895559 B CN104895559 B CN 104895559B
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Abstract
The invention discloses a kind of Oil/gas Well downhole optic fiber temperature, pressure tester, it includes optical fiber, transmission cable and the rope socket being sequentially connected by steel pipe and two temperature, pressure test devices, carbon fiber elastic body is provided with temperature, pressure test device, carbon fiber elastic body is provided with temperature-sensing element and pressure element, optical fiber is embedded in carbon fiber elastic body upper end and is connected with temperature-sensing element and pressure element, transmission cable, which runs through, is embedded in carbon fiber elastic body lower end, three sections of annular chambers are formed between temperature, pressure test device and carbon fiber elastic body, the end of the annular chamber at two ends is provided with opening and inside is provided with filler gum, the annular chamber in stage casing is that annular seal space constitutes pressure sensing chamber, pressure sensing chamber and ft connection, pressure element is in pressure sensing intracavitary.The present invention can solve the temperature, pressure test of HTHP Oil/gas Well well, while reserved transmission cable can also mount traditional electrical log instrument, can carry out the measurement of more parameters.
Description
Technical field
The present invention relates to hp-ht well formation temperature pressure test field, especially a kind of Oil/gas Well downhole optic fiber temperature
Pressure test instrument.
Background technology
Temperature and pressure is two very important parameters in Oil/gas Well development process, and its real-time, accuracy are to oil
There is very important meaning to production forecast, reserves estimation etc. in gas well development process, with the increasing of Oil/gas Well drilling depth
Plus, Oil/gas Well downhole temperature and pressure are constantly raised, and the electronic pressure temperature sensor being widely used at present is in hot environment
Under situations such as there is abnormal work, temperature, pressure data wander, it is impossible to meet the test request of current hp-ht well.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of high temperature resistant, small volume and jamproof Oil/gas Well downhole optic fiber
Temperature, pressure tester.
In order to solve the above-mentioned technical problem, the present invention includes optical fiber, transmission cable and is tightly connected successively by steel pipe
Rope socket and two temperature, pressure test devices, extend through provided with a carbon fiber inside each temperature, pressure test device
Elastomer, each carbon fiber elastic body is respectively equipped with a temperature-sensing element close to one end of rope socket, and middle part is respectively equipped with a sense
Element is pressed, the optical fiber is embedded in carbon fiber elastic body upper end and the optical fiber and two temperature-sensing elements and two after being tensed through rope socket
Pressure element is connected, and the transmission cable runs through after being tensed through rope socket is embedded in carbon fiber elastic body lower end and the transmission cable tail
End can also mount traditional electrical log instrument, with corresponding carbon fiber elastic inside each temperature, pressure test device
Three sections of annular chambers are respectively formed between body, wherein being each formed with opening and this two positioned at the end of two annular chambers at two ends
Filler gum is provided with annular chamber, the annular chamber positioned at stage casing is that annular seal space constitutes pressure sensing chamber, and each pressure is passed
Chamber is felt only by through hole and ft connection, and two pressure elements are respectively at corresponding pressure sensing intracavitary, the rope socket
A temperature is also respectively formed between temperature, pressure test device adjacent thereto and between two temperature, pressure test devices
Degree sensing chamber.
Rope socket end termination is connected by the way of aperture threading with optical fiber and transmission cable.
It is swollen that each junction between the steel pipe and rope socket or two temperature, pressure test devices is respectively equipped with a wedge shape
A spherical inner wall, wherein spherical inner wall and corresponding temperature are respectively formed with inside swollen becket, and each steel pipe two ends
The end sphere laminating of pressure test device or rope socket is set.
The beneficial effects of the invention are as follows：The Oil/gas Well downhole optic fiber temperature, pressure tester of the present invention disclosure satisfy that oil gas
Well underground 100MPa pressure, the test of more than 230 DEG C of temperature, pressure, the temperature pressure of HTHP Oil/gas Well can be solved well
Power is tested.Meanwhile, wherein reserved transmission cable can also mount traditional electrical log instrument, more parameters can be carried out
Measurement.
Brief description of the drawings
Fig. 1 is the overall structure diagram of Oil/gas Well downhole optic fiber temperature, pressure tester of the present invention；
Fig. 2 is the structural representation of rope socket part in the present invention；
Fig. 3 is the structural representation of rope socket end portion in the present invention；
Fig. 4 is the structural representation of temperature, pressure test device part in the present invention.
Embodiment
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description：
Referring to Fig. 1 to Fig. 4, Oil/gas Well downhole optic fiber temperature, pressure tester of the invention includes optical fiber 1, transmission cable
2 and the rope socket 4 being tightly connected successively by steel pipe 3 and two temperature, pressure test devices 5, each temperature, pressure test
Extended through inside device 5 provided with a carbon fiber elastic body 51, each carbon fiber elastic body 51 is close to one end of rope socket 4 point
Not She You a temperature-sensing element 52, middle part is respectively equipped with a pressure element 53, and the optical fiber 1 is embedded in carbon after being tensed through rope socket 4 fine
Tie up the upper end of elastomer 51 and the optical fiber 1 is connected with two temperature-sensing elements 52 and two pressure elements 53, the transmission cable 2 is through rope
Cap 4 tense after through being embedded in the lower end of carbon fiber elastic body 51 and the tail end of transmission cable 2 can also mount traditional electrical method and survey
Well instrument, each inside of temperature, pressure test device 5 between corresponding carbon fiber elastic body 51 with being respectively formed with three sections
Annular chamber, wherein being each formed with positioned at the end of two annular chambers at two ends in opening and two annular chambers provided with filling glue
Material, the annular chamber positioned at stage casing constitutes pressure sensing chamber 6 for annular seal space, each pressure sensing chamber 6 only by through hole with
Ft connection, two pressure elements 53 are respectively in corresponding pressure sensing chamber 6, the rope socket 4 and adjacent thereto
A TEMP chamber 7 is also respectively formed between temperature, pressure test device 5 and between two temperature, pressure test devices 5.
The rope socket part employs traditional cable structure design, the end termination of rope socket 4 by the way of aperture threading with
Optical fiber 1 and transmission cable 2 are connected (as shown in Figure 3).
Each the junction between the steel pipe 3 and rope socket 4 or two temperature, pressure test devices 5 is respectively equipped with a wedge shape
Be respectively formed with a spherical inner wall inside expanding metal ring 8, and each two ends of steel pipe 3, wherein spherical inner wall with it is corresponding
The end sphere laminating of temperature, pressure test device 5 or rope socket 4 is set.The sealing means of two TEMP chambers 7 employ wedge
Shape expanding metal ring 8 is to outer locking, and steel pipe 3 is using thin spherical inner wall and temperature, pressure test device 5 or the end of rope socket 4 in addition
Between sphere gluing, sealing, and steel pipe 3 and wedge-shaped expanding metal ring 8 to be sealed into the metallic hard with inclination angle (wedge shape) close
Envelope.This structure internal expansion when holding high pressure, higher than outside, solves whole housing HTHP sealing problem well,
After tested under 100MPa pressure, without any leakage.
Oil/gas Well downhole optic fiber temperature, pressure the tester overall length 1200mm, external diameter 32mm, this optical fiber temperature of the present invention
Pressure and temp test can be carried out using grating fibers by spending pressure test instrument, can also be existed using the transmission cable wherein passed through
Its lower end mounts traditional electrical log instrument.This Oil/gas Well downhole optic fiber temperature, pressure tester mainly has three part groups
Into, including：1st, rope socket (i.e. halter)；2nd, first temperature, pressure test device；3rd, second point temperature, pressure test device.Light
Fibre 1 and transmission cable 2 are penetrated from the upper end aperture of rope socket 4, and rope socket 4 pushes down the outer steel wire and interior armour steel of optical fiber 1 and transmission cable 2
Silk, optical fiber 1 and transmission cable 2 are hence into first temperature, pressure test device, optical fiber 1 and the upper end of carbon fiber elastic body 51
Temperature pressure sensing grating (the i.e. temperature-sensing element 52 and pressure element 53) connection pasted in groove, transmission cable 2 is by carbon fiber bullet
Property 51 times end slots of body pass through, optical fiber 1 and transmission cable 2 through after first temperature, pressure test device in the same way with the
2 temperature, pressure test device connections.
In summary, present disclosure is not limited in the above embodiments, and those skilled in the art can be
Propose other embodiments within the technological guidance's thought of the present invention, but these embodiments be included in the scope of the present invention it
It is interior.
Claims (3)
1. a kind of Oil/gas Well downhole optic fiber temperature, pressure tester, it is characterised in that：Including optical fiber (1), transmission cable (2) with
And the rope socket (4) being tightly connected successively by steel pipe (3) and two temperature, pressure test devices (5), each temperature, pressure
Extended through inside test device (5) provided with a carbon fiber elastic body (51), each carbon fiber elastic body (51) is close to rope
One end of cap (4) is respectively equipped with a temperature-sensing element (52), and middle part is respectively equipped with a pressure element (53), and the optical fiber (1) is through rope
Cap (4) is embedded in carbon fiber elastic body (51) upper end and the optical fiber (1) and two temperature-sensing elements (52) and two pressure-sensitive after tensing
Element (53) is connected, and the transmission cable (2) is run through after being tensed through rope socket (4) to be embedded in carbon fiber elastic body (51) lower end and be somebody's turn to do
Transmission cable (2) tail end can also mount traditional electrical log instrument, each temperature, pressure test device (5) it is internal with
Three sections of annular chambers are respectively formed between corresponding carbon fiber elastic body (51), wherein the end of two annular chambers positioned at two ends
It is each formed with opening and two annular chambers being provided with filler gum, the annular chamber positioned at stage casing constitutes pressure for annular seal space and passed
Feel chamber (6), each pressure sensing chamber (6) is only by through hole and ft connection, and two pressure elements (53) are located respectively
In the corresponding pressure sensing chamber (6), between the rope socket (4) and temperature, pressure test device (5) adjacent thereto and two
A TEMP chamber (7) is also respectively formed between individual temperature, pressure test device (5).
2. according to the Oil/gas Well downhole optic fiber temperature, pressure tester described in claim 1, it is characterised in that：The rope socket
(4) end termination is connected by the way of aperture threading with optical fiber (1) and transmission cable (2).
3. according to the Oil/gas Well downhole optic fiber temperature, pressure tester described in claim 1, it is characterised in that：Each steel
Junction between pipe (3) and rope socket (4) or two temperature, pressure test devices (5) is respectively equipped with a wedge-shaped expanding metal ring
(8) spherical inner wall, wherein spherical inner wall and corresponding temperature pressure, and inside each steel pipe (3) two ends are respectively formed with
The end sphere laminating of force test device (5) or rope socket (4) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510275374.9A CN104895559B (en) | 2015-05-25 | 2015-05-25 | Oil/gas Well downhole optic fiber temperature, pressure tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510275374.9A CN104895559B (en) | 2015-05-25 | 2015-05-25 | Oil/gas Well downhole optic fiber temperature, pressure tester |
Publications (2)
| Publication Number | Publication Date |
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| CN104895559A CN104895559A (en) | 2015-09-09 |
| CN104895559B true CN104895559B (en) | 2017-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510275374.9A Active CN104895559B (en) | 2015-05-25 | 2015-05-25 | Oil/gas Well downhole optic fiber temperature, pressure tester |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681195A (en) * | 2019-02-25 | 2019-04-26 | 中国矿业大学(北京) | A kind of down-hole drilling is interior along journey temperature infrared test device and method |
| CN112798159B (en) * | 2021-02-24 | 2021-11-09 | 吉林大学 | Fiber grating pressure sensor packaged by carbon fiber tube |
| CN113638707A (en) * | 2021-08-17 | 2021-11-12 | 中国石油化工股份有限公司 | Photoelectric well logging tractor |
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| EP1058822B1 (en) * | 1998-02-27 | 2004-07-21 | Abb Research Ltd. | Pressure sensor with fibre-integrated bragg grating, comprising an integrated temperature sensor with fibre-integrated bragg grating |
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| EP1058822B1 (en) * | 1998-02-27 | 2004-07-21 | Abb Research Ltd. | Pressure sensor with fibre-integrated bragg grating, comprising an integrated temperature sensor with fibre-integrated bragg grating |
| CN1904310A (en) * | 2006-08-04 | 2007-01-31 | 山东微感光电子有限公司 | Optical fiber pressure and temperature biparameter sensor |
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| CN101178006A (en) * | 2007-11-30 | 2008-05-14 | 北京蔚蓝仕科技有限公司 | Optical-fiber temperature and pressure two-parameter permanent oil well sensing unit |
| CN101324189A (en) * | 2008-07-28 | 2008-12-17 | 西安石油大学 | External pressure type temperature compensation high-temperature high-pressure optical fiber grating sensor |
| CN201763322U (en) * | 2009-11-20 | 2011-03-16 | 中科金佳（北京）油田技术开发有限公司 | Optical fiber-type pressure and temperature sensor |
| CN202381084U (en) * | 2011-12-06 | 2012-08-15 | 中国石油天然气股份有限公司 | Temperature and pressure combined monitoring system with optical fiber |
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| CN104895559A (en) | 2015-09-09 |
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Effective date of registration: 20210826 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: 300457 Tianjin Binhai New Area Development Zone Huanghai Road 106 Bohai Drilling Engineering Co., Ltd. science and Technology Development Office Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
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