CN202330787U - High-temperature/high-pressure resistant well-logging distributed sensing optical cable outside oil tube in oil well - Google Patents
High-temperature/high-pressure resistant well-logging distributed sensing optical cable outside oil tube in oil well Download PDFInfo
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- CN202330787U CN202330787U CN2011203755804U CN201120375580U CN202330787U CN 202330787 U CN202330787 U CN 202330787U CN 2011203755804 U CN2011203755804 U CN 2011203755804U CN 201120375580 U CN201120375580 U CN 201120375580U CN 202330787 U CN202330787 U CN 202330787U
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Abstract
The utility model discloses a high-temperature/high-pressure resistant well-logging distributed sensing optical cable outside an oil tube in an oil well, and the optical cable disclosed by the utility model comprises a high-strength, high-elasticity and high-temperature-resistant external protecting material layer, and a No.1 non-metallic high-strength and high-temperature-resistant elastic reinforced core, a No.1 high-temperature-resistant armored loosely-shielded optical fiber, a high-temperature-resistant and corrosion-resistant tightly-shielded optical fiber, a No.2 high-temperature-resistant armored loosely-shielded optical fiber and a No.2 non-metallic high-strength and high-temperature-resistant elastic reinforced core which are sequentially horizontally arranged in the high-strength, high-elasticity and high-temperature-resistant external protecting material layer along a same horizontal line; and the outer diameters of the reinforced cores are greater than those of the loosely-shielded optical fibers and the tightly-shielded optical fiber, coating layers in the loosely-shielded optical fibers and the tightly-shielded optical fiber are made of polyacrylic acid resin, silicone rubber or polyimide, the high-strength, high-elasticity and high-temperature-resistant external protecting material layer is of a rounded rectangular structure, and the four corners of the rounded rectangular structure are rounded corners. According to the design, the distributed sensing optical cable is not only high in accuracy of finally-obtained pressure values, high in elasticity and high in safety, but also strong in high temperature resistance and corrosion resistance, unified in specification, and convenient for manufacture and construction.
Description
Technical field
The utility model relates to a kind of well logging and uses the distributed sensing optical cable; Relate in particular to a kind of well logging that is used for the outer high-temperature-resistant high-pressure-resistant of oil well inner oil tube and use the distributed sensing optical cable; Specifically be applicable to the oil well that oil reservoir is thin, the zone between outside, the oil pipe inboard at oil well carries out monitoring in real time in the temperature and pressure.
Background technology
Along with development of fiber technology, the fiber optic sensing applications technology progressively has been applied to the oil well test field.Optical cable has become the most crucial ingredient of oil well optical fiber logging system as the transmission medium and the sensing media of light signal.The optical cable that uses at present generally is transmission cable, and this kind transmission cable lays particular emphasis on the protection of optical cable inner fiber, but can't make the optical fiber in the optical cable that the oil well internal pressure is carried out perception, also just can't accomplish the distributed monitoring of temperature and pressure in the oil well simultaneously.
The monitoring of optical fiber distributed temperature and pressure need be carried out the different combinations design to the structure of optical cable, when optical fiber need carry out temperature monitoring; Optical fiber can not receive the influence of ambient pressure; Otherwise can the accuracy of temperature monitoring be made a difference, simultaneously, when optical fiber need carry out pressure monitoring; Optical fiber must be able to be experienced the influence of ambient pressure, but the monitoring accuracy of pressure needs the serviceability temperature data monitored to proofread and correct.
Existing transmission cable exists following defective and deficiency in practical application:
1, owing to used the metal strengthening core, thereby when receiving extraneous the bump in the process of going into the well, the metal strengthening core will produce the distortion that can't recover, and these distortion will influence accuracy of test when optical fiber carries out sensor monitoring;
2, the demand that temperature and pressure is monitored is not simultaneously considered in the design of optical cable, causes can't perceiving extraneous pressure too by force to the protection of optical fiber.
The Chinese patent Granted publication number is CN201392418Y; Granted publication day is that the utility model patent on January 27th, 2010 discloses a kind of compound sensing optic cable; It is used to detect strain and variation of temperature; It comprises that halogen-free polyolefin sheath, interval are arranged on tightly packaged fiber and loose tube fiber in the sheath, the hard-pressed bale layer that said tightly packaged fiber comprises single-mode fiber, is coated on the single-mode fiber periphery and combines closely with sheath; Described loose tube fiber comprises loose sleeve pipe, is arranged on the colored optical fiber in the loose sleeve pipe and is filled in the fine cream in the loose sleeve pipe.Though strain-temperature parameter of measuring in the Temperature numerical that this utility model can combine to measure on the loose tube fiber, the tightly packaged fiber compensates calculating to obtain strain measurement value (force value); Monitor in real time when having realized temperature and pressure, but it still has following defective:
At first; Two tightly packaged fibers that this utility model comprises and a loose tube fiber are a line and are provided with at interval on the halogen-free polyolefin sheath; Loose tube fiber is between two tightly packaged fibers; Because the spacing distance between loose tube fiber and two tightly packaged fibers is bigger, has caused the difference of measurement environment between tightly packaged fiber, the loose tube fiber, thereby cause its strain-temperature parameter that records respectively and the conformability between the Temperature numerical relatively poor; Be difficult to calculate acquisition strain measurement value more accurately, so the degree of accuracy of the force value of its acquisition is lower through compensation;
Secondly; This utility model records Temperature numerical through loose tube fiber, records strain-temperature parameter through tightly packaged fiber, but it does not consider that loose tube fiber and tightly packaged fiber are not with a kind of optical fiber; There are differences in the generation of measured value separately; Iff relies on these two measured values to calculate, and can reduce the accuracy of final calculated value unavoidably, thereby reduces the degree of accuracy of the force value that obtains once more;
Once more, loose tube fiber that this utility model relied on and tightly packaged fiber all are arranged on the inside of halogen-free polyolefin sheath, and the deformation of tightly packaged fiber dependence halogen-free polyolefin sheath records strain-temperature parameter to its impact; But because tightly packaged fiber is arranged on the two ends of halogen-free polyolefin sheath; And and have no Cushioning Design between the halogen-free polyolefin sheath, thereby when measuring, the impact that tightly packaged fiber receives is bigger; Not only can influence the degree of accuracy of measured value, and can reduce its serviceable life;
At last; Because the applied environment of this utility model is civil engineering work or oil and gas pipes surface; Thereby its halogen-free polyolefin sheath that adopts, loose tube fiber, the structure of tightly packaged fiber and the needs that making design all can only be satisfied common environment for use, and do not have stronger high temperature resistant and corrosion resistance, there is not higher physical strength (like elasticity) yet; Be not suitable for high temperature, high pressure, be prone to collision environment for use (as oil well in the thin oil well of oil reservoir inboard with oil pipe outside between the zone; Not only temperature, pressure is all higher, and the rock in easy and the well bumps), range of application is narrower.
Summary of the invention
The purpose of the utility model is that to overcome the degree of accuracy of force value of the acquisition that exists in the prior art lower; High temperature resistant, corrosion resistance, relatively poor defective and the problem of physical strength; The distributed sensing optical cable is used in the well logging that provide a kind of degree of accuracy of force value of acquisition higher, high temperature resistant, corrosion resistance, physical strength is used for the outer high-temperature-resistant high-pressure-resistant of oil well inner oil tube preferably.
For realizing above purpose; The technical solution of the utility model is: the distributed sensing optical cable is used in the well logging that is used for the outer high-temperature-resistant high-pressure-resistant of oil well inner oil tube; Comprise the high temperature resistant external protective material layer of high-strength high-elasticity, high temperature resistant armouring loose tube fiber and corrosion-and high-temp-resistant tight tube fiber, a said high temperature resistant armouring loose tube fiber, corrosion-and high-temp-resistant tight tube fiber in the inside of the high temperature resistant external protective material layer of high-strength high-elasticity along same horizontal line lateral arrangement;
Said sensing optic cable also comprises No. two high temperature resistant armouring loose tube fibers and a consistent nonmetal high-strength high temperature-resistant elastic reinforcement core and No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores of structure, and the external diameter of a nonmetal high-strength high temperature-resistant elastic reinforcement core, No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores is greater than the external diameter of high temperature resistant armouring loose tube fiber, No. two high temperature resistant armouring loose tube fibers, corrosion-and high-temp-resistant tight tube fiber;
A said nonmetal high-strength high temperature-resistant elastic reinforcement core, No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores, a high temperature resistant armouring loose tube fiber, No. two same horizontal line lateral arrangement of high temperature resistant armouring loose tube fiber and corrosion-and high-temp-resistant tight tube fiber edge; The both sides of corrosion-and high-temp-resistant tight tube fiber are furnished with a high temperature resistant armouring loose tube fiber and No. two high temperature resistant armouring loose tube fibers respectively, and the opposite side of a high temperature resistant armouring loose tube fiber, No. two high temperature resistant armouring loose tube fibers is furnished with a nonmetal high-strength high temperature-resistant elastic reinforcement core and No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores respectively;
A said high temperature resistant armouring loose tube fiber comprises at least one high temperature resistant single-mode fiber of metal armouring pipe and set inside thereof; No. two high temperature resistant armouring loose tube fibers comprise at least one high temperature resistant multimode optical fiber of metal armouring pipe and set inside thereof, and the corrosion-and high-temp-resistant tight tube fiber comprises a high temperature resistant single-mode fiber and the outside high temperature resistant hard-pressed bale plastic material layer that coats thereof.
Said high temperature resistant single-mode fiber, high temperature resistant multimode optical fiber include fibre core and externally coated coat thereof, and the manufactured materials of fibre core is pure quartz, and the manufactured materials of coat is polyacrylic resin, silicon rubber or polyimide.
Said high-strength high-elasticity is high temperature resistant, and the external protective material layer is the round rectangle structure, and Qi Sijiao is fillet; The manufactured materials of said high-strength high-elasticity is high temperature resistant external protective material layer is thermoplastic polyurethane, PVF or soluble poly tetrafluoroethene.
A said nonmetal high-strength high temperature-resistant elastic reinforcement core, No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores are solid construction, and its manufactured materials is fibre-reinforced plastics or PVF.
The external diameter of said metal armouring pipe is consistent with the external diameter of high temperature resistant hard-pressed bale plastic material layer, and than the external diameter of a nonmetal high-strength high temperature-resistant elastic reinforcement core, No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores to when young 1 millimeter.
The physical dimension of said high-strength high-elasticity is high temperature resistant external protective material layer is long 14 millimeters, wide 5 millimeters; The external diameter of a said nonmetal high-strength high temperature-resistant elastic reinforcement core, No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores is greater than 3 millimeters; The external diameter of said metal armouring pipe is greater than 2 millimeters; The external diameter of said high temperature resistant hard-pressed bale plastic material layer is greater than 2 millimeters, and the external diameter of said high temperature resistant single-mode fiber, high temperature resistant multimode optical fiber is 0.9 millimeter.
Compared with prior art, the beneficial effect of the utility model is:
1, the utility model well logging of being used for the outer high-temperature-resistant high-pressure-resistant of oil well inner oil tube with the distributed sensing optical cable on the edge, inside of the high temperature resistant external protective material layer of high-strength high-elasticity same horizontal line successively lateral arrangement nonmetal high-strength high temperature-resistant elastic reinforcement core, high temperature resistant armouring loose tube fiber, corrosion-and high-temp-resistant tight tube fiber, No. two high temperature resistant armouring loose tube fibers, No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores are arranged; Wherein, The set inside of a high temperature resistant armouring loose tube fiber has at least one high temperature resistant single-mode fiber to record strain-temperature parameter; The set inside of No. two high temperature resistant armouring loose tube fibers has at least one high temperature resistant multimode optical fiber to record Temperature numerical; The set inside of corrosion-and high-temp-resistant tight tube fiber has a high temperature resistant single-mode fiber to record strain-temperature parameter; The advantage of this design is following: at first; The corrosion-and high-temp-resistant tight tube fiber is between high temperature resistant armouring loose tube fiber, No. two high temperature resistant armouring loose tube fibers; Structural symmetry, be convenient to ambient pressure evenly be transmitted in the middle of on the corrosion-and high-temp-resistant tight tube fiber of test pressure, the accuracy that helps improving test data; Secondly; Owing to two strengthening cores, two high temperature armouring loose tube fibers and a corrosion-and high-temp-resistant tight tube fiber are arranged at same horizontal line lateral arrangement successively; Thereby make close between high temperature resistant armouring loose tube fiber, corrosion-and high-temp-resistant tight tube fiber, No. two high temperature resistant armouring loose tube fibers; Have identical measurement environment, this makes to have stronger conformability between separately measured value, helps improving the degree of accuracy of the force value of final acquisition; Once more; Two armouring loose tube fibers record a Temperature numerical and a strain-temperature parameter respectively; A tight tube fiber records a strain-temperature parameter, and this just considers the kind difference of armouring loose tube fiber and tight tube fiber, when compensating calculating; The Temperature numerical that records with the armouring loose tube fiber, strain-temperature parameter that tight tube fiber records are main; Strain-the temperature parameter that records with the armouring loose tube fiber is simultaneously revised for being aided with, thereby has avoided the error that kind difference is caused between armouring loose tube fiber, the tight tube fiber, helps improving the degree of accuracy of the force value of final acquisition; The 4th; In the utility model on high temperature resistant single-mode fiber, the high temperature resistant multimode optical fiber manufactured materials of coat be polyacrylic resin, silicon rubber or polyimide; This manufactured materials can make the more environment of large-temperature range of test optical fiber; More perfect thermometric scheme is provided, thereby further improves the degree of accuracy of the final force value that obtains.Therefore the degree of accuracy of the final force value that obtains of the utility model is higher.
2, the utility model is used for the well logging of high-temperature-resistant high-pressure-resistant outward of oil well inner oil tube and also comprises a nonmetal high-strength high temperature-resistant elastic reinforcement core and No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores that structure is consistent with the distributed sensing optical cable; These two strengthening cores are separately positioned on the two ends of the high temperature resistant external protective material layer of high-strength high-elasticity; And the external diameter of strengthening core is greater than the external diameter of high temperature resistant armouring loose tube fiber, corrosion-and high-temp-resistant tight tube fiber; The advantage of this design is following: at first; Two strengthening cores are positioned at the two ends of the high temperature resistant external protective material layer of high-strength high-elasticity; And the external diameter of strengthening core is greater than the external diameter of high temperature resistant armouring loose tube fiber, corrosion-and high-temp-resistant tight tube fiber; This can make the extraneous pressure overwhelming majority all bear on strengthening core, can not only play a very good protection to optical cable integral body, and the sensor fibre in the optical cable is had strong protective effect; Can avoid optical fiber directly in the face of the impact of optical cable deformation, help improving the security of optical fiber and the accuracy of optical fiber measurement value; Secondly, because strengthening core is a solid construction, its manufactured materials is fibre-reinforced plastics or PVF; Thereby it not only intensity is higher, high temperature resistant, and have stronger elasticity, the metal strengthening core that uses unlike prior art is vulnerable to extraneous bending, is difficult to recover original form; It has toughness preferably, recovers easily, even in the process of going into the well, bump with the rock in the well; Also can not be compromised, degree of safety is high, has very strong defencive function.Therefore not only elasticity is strong, degree of safety is high for the utility model, and the accuracy that can improve the optical fiber measurement value.
3, the utility model well logging of being used for the outer high-temperature-resistant high-pressure-resistant of oil well inner oil tube design of using the high temperature resistant external protective material layer of distributed sensing optical cable high-strength high-elasticity to be fillet as round rectangle structure, Qi Sijiao can make the rectangle of optical cable grow the limit and oil-pipe external wall is better fitted; Reduce that optical cable is outer with oil pipe, the oil well probability that rock collides in the zone between inboard; Thereby effectively avoid optical cable to be damaged, improve the security that optical cable uses; The design of high-strength high-elasticity is high temperature resistant external protective material layer, strengthening core, high temperature resistant hard-pressed bale plastic material layer and coat manufacturing materials is in order to satisfy the demand of HTHP in the oil well; Temperature and pressure in the oil well is all very high; Optical cable under high pressure temperature will rise higher; If do not have stronger high temperature resistant and corrosion resistance, then be difficult in oil well, oil pipe is outer that sensor fibre is played good protection, and guarantee the work of sensing optic cable long-term stability.Therefore not only security is higher for the utility model, and high temperature resistant, corrosion resistance is stronger.
4, the utility model well logging of being used for the outer high-temperature-resistant high-pressure-resistant of oil well inner oil tube has all been carried out certain numerical definiteness with the distributed sensing optical cable to the size (external diameter, diameter etc.) of the high temperature resistant external protective material layer of high-strength high-elasticity, strengthening core, high temperature resistant single-mode fiber, high temperature resistant multimode optical fiber, metal armouring pipe and high temperature resistant hard-pressed bale plastic material layer; This kind numerical Design can be when reaching performance; Make that the optical cable profile is regular, uniform specification; Not only be convenient to make; Also be convenient to construction, can also avoid optical cable in the process of going into the well, to be damaged.Therefore the utility model specification property is more unified, is convenient to make and construction.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: high-strength high-elasticity is high temperature resistant 2, No. two high temperature resistant armouring loose tube fibers 3 of 1, number high temperature resistant armouring loose tube fiber of external protective material layer; 5, No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores 6 of 4, numbers nonmetal high-strength high temperature-resistant elastic reinforcement cores of corrosion-and high-temp-resistant tight tube fiber; Metal armouring pipe 7; High temperature resistant single-mode fiber 8, high temperature resistant multimode optical fiber 9, high temperature resistant hard-pressed bale plastic material layer 10.
Embodiment
Below in conjunction with description of drawings and embodiment the utility model is done further detailed explanation.
Referring to Fig. 1; The distributed sensing optical cable is used in the well logging that is used for the outer high-temperature-resistant high-pressure-resistant of oil well inner oil tube; Comprise the high temperature resistant external protective material layer of high-strength high-elasticity 1, a high temperature resistant armouring loose tube fiber 2 and corrosion-and high-temp-resistant tight tube fiber 4, a said high temperature resistant armouring loose tube fiber 2, corrosion-and high-temp-resistant tight tube fiber 4 in the inside of the high temperature resistant external protective material layer 1 of high-strength high-elasticity along same horizontal line lateral arrangement;
Said sensing optic cable also comprises No. two high temperature resistant armouring loose tube fibers 3 and a consistent nonmetal high-strength high temperature-resistant elastic reinforcement core 5 and No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores 6 of structure, and the external diameter of nonmetal high-strength high temperature-resistant elastic reinforcement core 5, No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores 6 is greater than the external diameter of the high temperature resistant armouring loose tube fiber of high temperature resistant armouring loose tube fiber 2, No. two 3, corrosion-and high-temp-resistant tight tube fiber 4;
The nonmetal high-strength high temperature-resistant elastic reinforcement core of a said nonmetal high-strength high temperature-resistant elastic reinforcement core 5, No. two 6, No. one are high temperature resistant armouring loose tube fiber 2, No. two high temperature resistant armouring loose tube fibers 3 and corrosion-and high-temp-resistant tight tube fiber 4 are along same horizontal line lateral arrangement; The opposite side that the both sides of corrosion-and high-temp-resistant tight tube fiber 4 are furnished with the high temperature resistant armouring loose tube fiber of No. 3,, high temperature resistant armouring loose tube fiber 2 and No. two high temperature resistant armouring loose tube fibers 2, No. two high temperature resistant armouring loose tube fibers 3 respectively is furnished with a nonmetal high-strength high temperature-resistant elastic reinforcement core 5 and No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores 6 respectively;
A said high temperature resistant armouring loose tube fiber 2 comprises at least one high temperature resistant single-mode fiber 8 of metal armouring pipe 7 and set inside thereof; No. two high temperature resistant armouring loose tube fibers 3 comprise at least one high temperature resistant multimode optical fiber 9 of metal armouring pipe 7 and set inside thereof, and corrosion-and high-temp-resistant tight tube fiber 4 comprises a high temperature resistant single-mode fiber 8 and the outside high temperature resistant hard-pressed bale plastic material layer 10 that coats thereof.
Said high temperature resistant single-mode fiber 8, high temperature resistant multimode optical fiber 9 include fibre core and externally coated coat thereof, and the manufactured materials of fibre core is pure quartz, and the manufactured materials of coat is polyacrylic resin, silicon rubber or polyimide.
Said high-strength high-elasticity is high temperature resistant, and external protective material layer 1 is the round rectangle structure, and Qi Sijiao is fillet; The manufactured materials of said high-strength high-elasticity is high temperature resistant external protective material layer 1 is thermoplastic polyurethane, PVF or soluble poly tetrafluoroethene.
A said nonmetal high-strength high temperature-resistant elastic reinforcement core 5, No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores 6 are solid construction, and its manufactured materials is fibre-reinforced plastics or PVF.
The external diameter of said metal armouring pipe 7 is consistent with the external diameter of high temperature resistant hard-pressed bale plastic material layer 10, and than the external diameter of nonmetal high-strength high temperature-resistant elastic reinforcement core 5, No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores 6 to when young 1 millimeter.
The physical dimension of said high-strength high-elasticity is high temperature resistant external protective material layer 1 is long 14 millimeters, wide 5 millimeters; The external diameter of a said nonmetal high-strength high temperature-resistant elastic reinforcement core 5, No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores 6 is greater than 3 millimeters; The external diameter of said metal armouring pipe 7 is greater than 2 millimeters; The external diameter of said high temperature resistant hard-pressed bale plastic material layer 10 is greater than 2 millimeters, and the external diameter of said high temperature resistant single-mode fiber 8, high temperature resistant multimode optical fiber 9 is 0.9 millimeter.
Embodiment 1:
The distributed sensing optical cable is used in the well logging that is used for the outer high-temperature-resistant high-pressure-resistant of oil well inner oil tube; Comprise the high temperature resistant armouring loose tube fiber of the nonmetal high-strength high temperature-resistant elastic reinforcement core of high temperature resistant external protective material layer 1 of high-strength high-elasticity and inner along same horizontal line lateral arrangement successively No. one thereof 5, No. one 2, corrosion-and high-temp-resistant tight tube fiber 4, No. two high temperature resistant armouring loose tube fibers 3 and No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores 6; And the external diameter of nonmetal high-strength high temperature-resistant elastic reinforcement core 5, No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores 6 is greater than the external diameter of the high temperature resistant armouring loose tube fiber of high temperature resistant armouring loose tube fiber 2, No. two 3, corrosion-and high-temp-resistant tight tube fiber 4; The manufactured materials of coat is polyacrylic resin, silicon rubber or polyimide in high temperature resistant armouring loose tube fiber and the corrosion-and high-temp-resistant tight tube fiber 4; High-strength high-elasticity is high temperature resistant, and external protective material layer 1 is the round rectangle structure, and Qi Sijiao is fillet.
Therefore the degree of accuracy of the force value that the design not only finally obtains is higher, elasticity is strong, degree of safety is high, and corrosion-and high-temp-resistant property is strong, specification property is unified, be convenient to manufacturing and construction.
Claims (5)
1. the distributed sensing optical cable is used in the well logging that is used for the outer high-temperature-resistant high-pressure-resistant of oil well inner oil tube; Comprise the high temperature resistant external protective material layer of high-strength high-elasticity (1), a high temperature resistant armouring loose tube fiber (2) and corrosion-and high-temp-resistant tight tube fiber (4); A said high temperature resistant armouring loose tube fiber (2), corrosion-and high-temp-resistant tight tube fiber (4) be same horizontal line lateral arrangement on the edge, inside of the high temperature resistant external protective material layer of high-strength high-elasticity (1), it is characterized in that:
Said sensing optic cable also comprises consistent nonmetal high-strength high temperature-resistant elastic reinforcement core (5) of No. two high temperature resistant armouring loose tube fibers (3) and structure and No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores (6), and the external diameter of a nonmetal high-strength high temperature-resistant elastic reinforcement core (5), No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores (6) is greater than the external diameter of a high temperature resistant armouring loose tube fiber (2), No. two high temperature resistant armouring loose tube fibers (3), corrosion-and high-temp-resistant tight tube fiber (4);
A said nonmetal high-strength high temperature-resistant elastic reinforcement core (5), No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores (6), a high temperature resistant armouring loose tube fiber (2), No. two high temperature resistant armouring loose tube fibers (3) and the same horizontal line lateral arrangement in corrosion-and high-temp-resistant tight tube fiber (4) edge; The both sides of corrosion-and high-temp-resistant tight tube fiber (4) are furnished with a high temperature resistant armouring loose tube fiber (2) and No. two high temperature resistant armouring loose tube fibers (3) respectively, and the opposite side of a high temperature resistant armouring loose tube fiber (2), No. two high temperature resistant armouring loose tube fibers (3) is furnished with a nonmetal high-strength high temperature-resistant elastic reinforcement core (5) and No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores (6) respectively;
A said high temperature resistant armouring loose tube fiber (2) comprises at least one high temperature resistant single-mode fiber (8) of metal armouring pipe (7) and set inside thereof; No. two high temperature resistant armouring loose tube fibers (3) comprise at least one high temperature resistant multimode optical fiber (9) of metal armouring pipe (7) and set inside thereof, and corrosion-and high-temp-resistant tight tube fiber (4) comprises a high temperature resistant single-mode fiber (8) and the outside high temperature resistant hard-pressed bale plastic material layer (10) that coats thereof.
2. the distributed sensing optical cable is used in the well logging that is used for the outer high-temperature-resistant high-pressure-resistant of oil well inner oil tube according to claim 1; It is characterized in that: said high temperature resistant single-mode fiber (8), high temperature resistant multimode optical fiber (9) include fibre core and externally coated coat thereof; The manufactured materials of fibre core is pure quartz, and the manufactured materials of coat is polyacrylic resin, silicon rubber or polyimide.
3. the distributed sensing optical cable is used in the well logging that is used for the outer high-temperature-resistant high-pressure-resistant of oil well inner oil tube according to claim 1 and 2, it is characterized in that: said high-strength high-elasticity is high temperature resistant, and external protective material layer (1) is the round rectangle structure, and Qi Sijiao is fillet; The manufactured materials of said high-strength high-elasticity is high temperature resistant external protective material layer (1) is thermoplastic polyurethane, PVF or soluble poly tetrafluoroethene.
4. the distributed sensing optical cable is used in the well logging that is used for the outer high-temperature-resistant high-pressure-resistant of oil well inner oil tube according to claim 1 and 2; It is characterized in that: a said nonmetal high-strength high temperature-resistant elastic reinforcement core (5), No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores (6) are solid construction, and its manufactured materials is fibre-reinforced plastics or PVF.
5. the distributed sensing optical cable is used in the well logging that is used for the outer high-temperature-resistant high-pressure-resistant of oil well inner oil tube according to claim 1 and 2; It is characterized in that: the external diameter of said metal armouring pipe (7) is consistent with the external diameter of high temperature resistant hard-pressed bale plastic material layer (10), and than the external diameter of a nonmetal high-strength high temperature-resistant elastic reinforcement core (5), No. two nonmetal high-strength high temperature-resistant elastic reinforcement cores (6) to when young 1 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203755804U CN202330787U (en) | 2011-09-29 | 2011-09-29 | High-temperature/high-pressure resistant well-logging distributed sensing optical cable outside oil tube in oil well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203755804U CN202330787U (en) | 2011-09-29 | 2011-09-29 | High-temperature/high-pressure resistant well-logging distributed sensing optical cable outside oil tube in oil well |
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| CN202330787U true CN202330787U (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203755804U Expired - Lifetime CN202330787U (en) | 2011-09-29 | 2011-09-29 | High-temperature/high-pressure resistant well-logging distributed sensing optical cable outside oil tube in oil well |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459917A (en) * | 2014-12-30 | 2015-03-25 | 东捷光电科技(苏州)有限公司 | Temperature stress sensing optical cable |
| CN105974544A (en) * | 2016-07-25 | 2016-09-28 | 长飞光纤光缆股份有限公司 | Sensing-communication composite optical cable |
| CN114859487A (en) * | 2022-04-18 | 2022-08-05 | 中天电力光缆有限公司 | Sealed oil well optical cable |
-
2011
- 2011-09-29 CN CN2011203755804U patent/CN202330787U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459917A (en) * | 2014-12-30 | 2015-03-25 | 东捷光电科技(苏州)有限公司 | Temperature stress sensing optical cable |
| CN105974544A (en) * | 2016-07-25 | 2016-09-28 | 长飞光纤光缆股份有限公司 | Sensing-communication composite optical cable |
| CN114859487A (en) * | 2022-04-18 | 2022-08-05 | 中天电力光缆有限公司 | Sealed oil well optical cable |
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