CN104895559A - Oil-gas well downhole optical fiber temperature and pressure test instrument - Google Patents
Oil-gas well downhole optical fiber temperature and pressure test instrument Download PDFInfo
- Publication number
- CN104895559A CN104895559A CN201510275374.9A CN201510275374A CN104895559A CN 104895559 A CN104895559 A CN 104895559A CN 201510275374 A CN201510275374 A CN 201510275374A CN 104895559 A CN104895559 A CN 104895559A
- Authority
- CN
- China
- Prior art keywords
- temperature
- pressure
- optical fiber
- rope socket
- oil
- 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.)
- Granted
Links
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention discloses an oil-gas well downhole optical fiber temperature and pressure test instrument. The test instrument comprises an optical fiber, a conveying cable, a rope socket and two temperature and pressure test devices, wherein the rope socket and the temperature and pressure test devices are sequentially connected through steel pipes. Carbon fiber elastomers are arranged in the temperature pressure test devices and provided with temperature-sensing elements and pressure-sensing elements. The optical fiber is embedded into the upper ends of the carbon fiber elastomers and connected with the temperature-sensing elements and the pressure-sensing elements. The conveying cable is embedded into the lower ends of the carbon fiber elastomers in a penetrating mode. Three segments of annular cavities are formed between the temperature and pressure test devices and the carbon fiber elastomers. The ends of the annular cavities in the two ends are provided with openings and internally provided with filling rubber. The annular cavity in the middle is a sealed cavity and forms a pressure sensing cavity. The pressure sensing cavity is communicated with the outside. The pressure-sensing elements are located in the pressure sensing cavity. By means of the oil-gas well downhole optical fiber temperature and pressure test instrument, temperature and pressure test of a high-temperature high-pressure oil-gas well can be well solved, meanwhile the reserved conveying cable can hang a traditional electric method logging instrument, and more parameters can be measured.
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 tester.
Background technology
Temperature and pressure is two very important parameters in Oil/gas Well development process, its real-time, accuracy have very important meaning in Oil/gas Well development process to production forecast, reserves estimation etc., along with the increase of Oil/gas Well drilling depth, Oil/gas Well downhole temperature and pressure constantly raise, there is the situations such as work is abnormal, temperature, pressure data wander in the electronic pressure temperature pick up of current extensive use, cannot meet the test request of current hp-ht well in high temperature environments.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of high temperature resistant, volume is little and jamproof Oil/gas Well downhole optic fiber temperature, pressure tester.
In order to solve the problems of the technologies described above, the present invention includes optical fiber, transmission cable and the rope socket be tightly connected successively by steel pipe and two temperature, pressure testing arrangements, each described temperature, pressure testing arrangement inside is run through respectively and is provided with a carbon fiber elastic body, each described carbon fiber elastic body is respectively equipped with a temperature-sensing element near one end of rope socket, middle part is respectively equipped with a pressure element, described optical fiber is embedded in carbon fiber elastic body upper end after rope socket tension and this optical fiber is connected with two temperature-sensing elements and two pressure elements, described transmission cable runs through and is embedded in carbon fiber elastic body lower end and this transmission cable tail end can also mount traditional electrical log instrument after rope socket tension, three sections of annular chambers are formed respectively between each described temperature, pressure testing arrangement inside and corresponding carbon fiber elastic body, the end being wherein positioned at two annular chambers at two ends is all formed with opening and these two annular chambers are provided with filler gum, the annular chamber being positioned at stage casing is that annular seal space constitutes pressure sensing chamber, each described pressure sensing chamber is by means of only through hole and ft connection, two described pressure elements are in corresponding pressure sensing chamber respectively, a TEMP chamber is also formed respectively between described rope socket and the temperature, pressure testing arrangement be adjacent and between two temperature, pressure testing arrangements.
Termination, described rope socket end adopts the mode of aperture threading to be connected with optical fiber and transmission cable.
Junction between each described steel pipe and rope socket or two temperature, pressure testing arrangements is respectively equipped with a wedge shape expanding metal ring, and inside, each described steel pipe two ends is formed with a spherical inner wall respectively, wherein the end sphere of spherical inner wall and corresponding temperature, pressure testing arrangement or rope socket is fitted and is arranged.
The invention has the beneficial effects as follows: Oil/gas Well downhole optic fiber temperature, pressure tester of the present invention can meet Oil/gas Well down-hole 100MPa pressure, more than 230 DEG C temperature, pressure test, can solve well HTHP Oil/gas Well temperature, pressure test.Meanwhile, wherein reserved transmission cable can also mount traditional electrical log instrument, can carry out the measurement of more multi-parameter.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of Oil/gas Well downhole optic fiber temperature, pressure tester of the present invention;
Fig. 2 is the structural representation of pressure cap part in the present invention;
Fig. 3 is the structural representation of pressure cap end portion in the present invention;
Fig. 4 is the structural representation of temperature, pressure testing arrangement part in the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
See Fig. 1 to Fig. 4, Oil/gas Well downhole optic fiber temperature, pressure tester of the present invention comprises optical fiber 1, transmission cable 2 and the rope socket 4 be tightly connected successively by steel pipe 3 and two temperature, pressure testing arrangements 5, each described temperature, pressure testing arrangement 5 inside is run through respectively and is provided with a carbon fiber elastic body 51, each described carbon fiber elastic body 51 is respectively equipped with a temperature-sensing element 52 near one end of rope socket 4, middle part is respectively equipped with a pressure element 53, described optical fiber 1 is embedded in carbon fiber elastic body 51 upper end after rope socket 4 is strained and this optical fiber 1 is connected with two temperature-sensing elements 52 and two pressure elements 53, described transmission cable 2 runs through and is embedded in carbon fiber elastic body 51 lower end and this transmission cable 2 tail end can also mount traditional electrical log instrument after rope socket 4 is strained, three sections of annular chambers are formed respectively between each described temperature, pressure testing arrangement 5 inside and corresponding carbon fiber elastic body 51, the end being wherein positioned at two annular chambers at two ends is all formed with opening and these two annular chambers are provided with filler gum, the annular chamber being positioned at stage casing is that annular seal space constitutes pressure sensing chamber 6, each described pressure sensing chamber 6 is by means of only through hole and ft connection, two described pressure elements 53 are in corresponding pressure sensing chamber 6 respectively, a TEMP chamber 7 is also formed respectively between described rope socket 4 and the temperature, pressure testing arrangement 5 be adjacent and between two temperature, pressure testing arrangements 5.
Described rope socket part have employed traditional cable structure design, and termination, rope socket 4 end adopts the mode of aperture threading to be connected (as shown in Figure 3) with optical fiber 1 and transmission cable 2.
Junction between each described steel pipe 3 and rope socket 4 or two temperature, pressure testing arrangements 5 is respectively equipped with a wedge shape expanding metal ring 8, and inside, each described steel pipe 3 two ends is formed with a spherical inner wall respectively, wherein the end sphere of spherical inner wall and corresponding temperature, pressure testing arrangement 5 or rope socket 4 is fitted and is arranged.The sealing means in two TEMP chambeies 7 have employed wedge shape expanding metal ring 8 to outer locking, steel pipe 3 adopts the end sphere gluing, sealing of thin spherical inner wall and temperature, pressure testing arrangement 5 or rope socket 4 in addition, and is sealed into the metal hard-sealing being with angle of slope (wedge shape) between steel pipe 3 and wedge shape expanding metal ring 8.This structure internal expansion when holding high pressure, higher than outside, well solves whole housing HTHP sealing problem, after tested under 100MPa pressure, without any leakage.
Oil/gas Well downhole optic fiber temperature, pressure tester overall length 1200mm of the present invention, external diameter 32mm, this fiber optic temperature pressure test instrument can be applied grating fibers and carry out pressure and temp test, also can apply the transmission cable wherein passed and mount traditional electrical log instrument in its lower end.This Oil/gas Well downhole optic fiber temperature, pressure tester mainly contains three part compositions, comprising: 1, rope socket (i.e. halter); 2, first temperature, pressure testing arrangement; 3, second point temperature, pressure testing arrangement.Optical fiber 1 and transmission cable 2 penetrate from rope socket 4 upper end aperture, pressure cap 4 pushes down outer steel wire and the inner steel wire of optical fiber 1 and transmission cable 2, optical fiber 1 and transmission cable 2 enter in first temperature, pressure testing arrangement thus, optical fiber 1 is connected with the temperature pressure sensing grating pasted in carbon fiber elastic body 51 upper end slot (i.e. temperature-sensing element 52 and pressure element 53), transmission cable 2 is passed by carbon fiber elastic body 51 times end slots, and optical fiber 1 is connected with second point temperature, pressure testing arrangement through after first temperature, pressure testing arrangement in the same way with transmission cable 2.
In sum, content of the present invention is not limited in the above-described embodiment, and those skilled in the art can propose other embodiment within technological guidance's thought of the present invention, but these embodiments all comprise within the scope of the present invention.
Claims (3)
1. an Oil/gas Well downhole optic fiber temperature, pressure tester, it is characterized in that: comprise optical fiber (1), transmission cable (2) and the rope socket (4) be tightly connected successively by steel pipe (3) and two temperature, pressure testing arrangements (5), each described temperature, pressure testing arrangement (5) inside is run through respectively and is provided with a carbon fiber elastic body (51), each described carbon fiber elastic body (51) is respectively equipped with a temperature-sensing element (52) near one end of rope socket (4), middle part is respectively equipped with a pressure element (53), described optical fiber (1) is embedded in carbon fiber elastic body (51) upper end after rope socket (4) tension and this optical fiber (1) is connected with two temperature-sensing elements (52) and two pressure elements (53), described transmission cable (2) runs through and is embedded in carbon fiber elastic body (51) lower end and this transmission cable (2) tail end can also mount traditional electrical log instrument after rope socket (4) tension, three sections of annular chambers are formed respectively between each described temperature, pressure testing arrangement (5) inside and corresponding carbon fiber elastic body (51), the end being wherein positioned at two annular chambers at two ends is all formed with opening and these two annular chambers are provided with filler gum, the annular chamber being positioned at stage casing is that annular seal space constitutes pressure sensing chamber (6), each described pressure sensing chamber (6) is by means of only through hole and ft connection, two described pressure elements (53) are in corresponding pressure sensing chamber (6) respectively, a TEMP chamber (7) is also formed respectively between described rope socket (4) and the temperature, pressure testing arrangement (5) be adjacent and between two temperature, pressure testing arrangements (5).
2. according to Oil/gas Well downhole optic fiber temperature, pressure tester according to claim 1, it is characterized in that: described rope socket (4) termination, end adopts the mode of aperture threading to be connected with optical fiber (1) and transmission cable (2).
3. according to Oil/gas Well downhole optic fiber temperature, pressure tester according to claim 1, it is characterized in that: the junction between each described steel pipe (3) and rope socket (4) or two temperature, pressure testing arrangements (5) is respectively equipped with wedge shape expanding metal ring (8), and each described steel pipe (3) inside, two ends is formed with a spherical inner wall respectively, wherein the end sphere of spherical inner wall and corresponding temperature, pressure testing arrangement (5) or rope socket (4) is fitted and is arranged.
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 |
|---|---|
| CN104895559A true CN104895559A (en) | 2015-09-09 |
| CN104895559B CN104895559B (en) | 2017-09-15 |
Family
ID=54028474
Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104895559B (en) |
Cited By (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 |
| CN112798159A (en) * | 2021-02-24 | 2021-05-14 | 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 |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US20070292071A1 (en) * | 2006-06-19 | 2007-12-20 | Baker Hughes Incorporated | Isolated Sensor Housing |
| 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 |
| CN201074513Y (en) * | 2007-08-14 | 2008-06-18 | 北京基康科技有限公司 | Pressure sensor |
| WO2008089208A2 (en) * | 2007-01-16 | 2008-07-24 | Baker Hughes Incorporated | Distributed optical pressure and temperature sensors |
| 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 |
| WO2011094331A2 (en) * | 2010-01-29 | 2011-08-04 | Baker Hughes Incorporated | Device and method for discrete distributed optical fiber pressure sensing |
| 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 |
| CN202690034U (en) * | 2012-06-21 | 2013-01-23 | 北京康华盛鸿能源科技发展有限公司 | Optical fiber monitoring system for underground temperature and pressure |
| CN204269265U (en) * | 2014-08-27 | 2015-04-15 | 基康仪器股份有限公司 | For the fiber bragg grating pressure sensor under high temperature and high pressure environment |
-
2015
- 2015-05-25 CN CN201510275374.9A patent/CN104895559B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US20070292071A1 (en) * | 2006-06-19 | 2007-12-20 | Baker Hughes Incorporated | Isolated Sensor Housing |
| 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 |
| WO2008089208A2 (en) * | 2007-01-16 | 2008-07-24 | Baker Hughes Incorporated | Distributed optical pressure and temperature sensors |
| CN201074513Y (en) * | 2007-08-14 | 2008-06-18 | 北京基康科技有限公司 | Pressure sensor |
| 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 |
| WO2011094331A2 (en) * | 2010-01-29 | 2011-08-04 | Baker Hughes Incorporated | Device and method for discrete distributed optical fiber pressure sensing |
| 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 |
| CN202690034U (en) * | 2012-06-21 | 2013-01-23 | 北京康华盛鸿能源科技发展有限公司 | Optical fiber monitoring system for underground temperature and pressure |
| CN204269265U (en) * | 2014-08-27 | 2015-04-15 | 基康仪器股份有限公司 | For the fiber bragg grating pressure sensor under high temperature and high pressure environment |
Non-Patent Citations (1)
| Title |
|---|
| 王富: "井下光纤光栅温度压力传感器的研制", 《西南石油大学学报（自然科学版）》 * |
Cited By (4)
| 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 |
| CN112798159A (en) * | 2021-02-24 | 2021-05-14 | 吉林大学 | Fiber grating pressure sensor packaged by carbon fiber tube |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104895559B (en) | 2017-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BRPI0916469B1 (en) | VIBRATION AND PRESSURE MEASUREMENT DEVICE IN A WELL INTEGRATED IN A SECTION OF THE TUBE AS PART OF A PRODUCTION PIPING | |
| CN101673899B (en) | High pressure resistance sealed connector and adaptor thereof | |
| US11542813B2 (en) | Device for acquiring and communicating data between strings of oil wells or gas wells | |
| CN104895559A (en) | Oil-gas well downhole optical fiber temperature and pressure test instrument | |
| US20140231066A1 (en) | Coiled Tubing System with Multiple Integral Pressure Sensors and DTS | |
| CN103628825A (en) | Slurry resistivity measurement pressure bearing connector used for induction logging instrument | |
| CN110657905A (en) | Tunnel surrounding rock internal stress distributed monitoring device, construction method and monitoring method | |
| CN212389328U (en) | Multi-size pipe diameter self-adaptive sealing underground liquid level monitoring system | |
| CN210264664U (en) | Direct-reading and storage integrated noise logging instrument | |
| GB2600881A (en) | Cladding for electro-optical devices | |
| CN204476396U (en) | Oil well is even fine with test tube line | |
| CN204113278U (en) | Test string for gas storage | |
| CN215718696U (en) | Oil well underground monitoring device with image monitoring function | |
| CN206972224U (en) | Downhole instrument support cylinder | |
| CN202832253U (en) | High-temperature high-pressure transmission logging male connector | |
| CN110043245B (en) | Direct-reading and storage integrated noise logging instrument | |
| CN113931619B (en) | Real-time monitoring system and monitoring method for optical fiber temperature and pressure of offshore oilfield high-temperature horizontal steam injection well | |
| CN103758507A (en) | Signal transmission structure and method of drill rod | |
| CN216665594U (en) | Underground temperature and pressure tester device | |
| CN202797859U (en) | Concealed signal communication cable | |
| CN104078916B (en) | A kind of cable protecting device | |
| CN202991013U (en) | Connecting sealing structure | |
| CN114293981B (en) | Permanent direct-reading type downhole temperature and pressure tester | |
| CN204457479U (en) | The structure that a kind of minor diameter is excessively multi-thread | |
| CN207499865U (en) | A kind of righting integral type inclinometer pipe nipple and inclinometer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
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. |