CN204881766U - A optical fiber sensing equipment for detecting storage tank oil -water interface - Google Patents
A optical fiber sensing equipment for detecting storage tank oil -water interface Download PDFInfo
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- CN204881766U CN204881766U CN201520442691.0U CN201520442691U CN204881766U CN 204881766 U CN204881766 U CN 204881766U CN 201520442691 U CN201520442691 U CN 201520442691U CN 204881766 U CN204881766 U CN 204881766U
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Abstract
The utility model provides an optical fiber sensing equipment for detecting storage tank oil -water interface relates to the oil field and measures technical field, and wherein this optical fiber sensing equipment passes through the different temperatures on different medium layers such as air in the real -time supervision oil storage tank, oil reservoir, emulsification layer, water layer to reach the effect of real -time, accurate monitoring profit liquid level. An optical fiber sensing equipment for detecting storage tank oil -water interface, includes: the vertical bellows of settling in the oil storage tank, the bottom of bellows is provided with horizontal base, the winding has armor temperature measurement optical fiber on the bellows, at least including 2 mutual spare multimode heat sensitive optical fiber among the armor temperature measurement optical fiber, still include in the optical fiber sensing equipment: temperature transducer and distributed optical fiber host computer, temperature transducer and distributed optical fiber host computer pass through multimode heat sensitive optical fiber interconnect.
Description
Technical field
The utility model relates to oil field field of measuring technique, particularly relates to a kind of fiber optic sensing devices for detecting s.t.o. water termination.
Background technology
In oilfield process, the crude oil exploited out can carry out multinomial PROCESS FOR TREATMENT to it after metering at test satellite location, such as: heating sedimentation, separating and dehydrating etc., finally can be fed through product oil storage tank when water percentage is up to standard.It should be noted that in above-mentioned production run, owing to including various ingredients in wellhead liquid, such as: Oil, Water, Gas and a small amount of silt etc., therefore need to measure water-oil interface at any time.The result detected then to subsequent step as oil and water separation, oil tank level to control etc. to produce material impact automatically, if can not accurately record, then likely can cause subsequent step to produce and produce waste, even the series of problems such as environmental pollution.
Existing water-oil interface detection technique utilizes the process such as capacitive radio frequency admittance liquid level gauge or electric-resistivity method dipping instrument and device usually.But in actual testing process, inventor finds, due to the oil-water emulsion liquid mixture of different shape can be formed after oil mixing with water, thus form the emulsion layer of the equal random variation of parameter such as viscosity, concentration, content of mineral substances at water-oil interface place, and cause existing surveying instrument can occur when measuring even may to occur compared with big error thus cannot the situation of reading; On the other hand, because the cost of checkout equipment own is higher, difficult in maintenance, the technique effect of oil storage tank water termination Real-Time Monitoring cannot therefore often be met.
Utility model content
The utility model provides a kind of fiber optic sensing devices for detecting s.t.o. water termination, wherein this fiber optic sensing devices is by the different temperatures of the different medium layers such as air, oil reservoir, emulsion layer, water layer in Real-Time Monitoring storage tank, thus reaches effect that is real-time, precise monitoring profit liquid level.
For solving the problems of the technologies described above, the utility model have employed following technical scheme:
For detecting a fiber optic sensing devices for s.t.o. water termination, comprising:
Vertically be placed in the corrugated tube in storage tank, the bottom of described corrugated tube is provided with horizontal base, described corrugated tube is wound with armored temperature measuring optical fiber, at least includes 2 multimode temperature sensing optical fibers backed up mutually in described armored temperature measuring optical fiber;
Also comprise in described fiber optic sensing devices: temperature probe and distribution type fiber-optic main frame;
Described temperature probe and distribution type fiber-optic main frame are interconnected by multimode temperature sensing optical fiber.
Further, also include many plain conductors in described armored temperature measuring optical fiber, many plain conductors are connected with Constant Electric Current heating unit.
Comparatively preferred, described corrugated tube outside surface deposits stainless steel anti-corrosion layer, and the thickness of described stainless steel anti-corrosion layer is 0.25 ± 0.02mm;
Described bellows interior is filled with the fine cream of thixotropic.
Comparatively preferred, described armored temperature measuring fiber outer surface is coated with insulating protective layer, and the withstand long term exposure temperature of described armored temperature measuring optical fiber is-50 DEG C ~ 100 DEG C.
Preferably, described distribution type fiber-optic main frame is the 16 passage distributed optical fiber temperature measurement main frames based on Raman scattering.
A kind of fiber optic sensing devices for detecting s.t.o. water termination that the utility model provides, the corrugated tube be vertically placed in storage tank is included in this fiber optic sensing devices, corrugated tube is wound with armored temperature measuring optical fiber, be provided with at least 2 multimode temperature sensing optical fibers backed up mutually in armored temperature measuring optical fiber, temperature probe and distribution type fiber-optic main frame are interconnected by multimode temperature sensing optical fiber.Adopt the fiber optic sensing devices of said structure can react the temperature conditions of each layer medium in storage tank in real time, intuitively, and draw water-oil interface related data by software for calculation analysis, finally reach the technique effect of Real-Time Monitoring profit liquid level.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of individual well of the utility model containing water metering device.
Embodiment
The utility model provides a kind of fiber optic sensing devices for detecting s.t.o. water termination, wherein this fiber optic sensing devices is by the different temperatures of the different medium layers such as air, oil reservoir, emulsion layer, water layer in Real-Time Monitoring storage tank, thus reaches effect that is real-time, precise monitoring profit liquid level.
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
A kind of fiber optic sensing devices for detecting s.t.o. water termination, as shown in Figure 1, the corrugated tube 2(be vertically placed in storage tank 1 can be arranged on storage tank inside in advance), the bottom of corrugated tube 2 is provided with horizontal base (not shown in accompanying drawing 1), corrugated tube 2 is wound with armored temperature measuring optical fiber 3.Wherein, as one comparatively preferred embodiment, corrugated tube outside surface can deposit one deck stainless steel layer as anti-corrosion layer, the thickness of deposition is preferably 0.25 ± 0.02mm; And bellows interior is filled with the fine cream of thixotropic, the fine cream of this thixotropic can alleviate the impact of foreign impacts on the armored temperature measuring optical fiber of corrugated tube and winding, thus extends the serviceable life of corrugated tube and armored temperature measuring optical fiber.
And armored temperature measuring optical fiber 3 comprises the multimode temperature sensing optical fiber of the mutual backup of at least 2, by this multimode temperature sensing optical fiber, temperature probe 4 and distribution type fiber-optic main frame 5 are interconnected; It should be noted that in armored temperature measuring optical fiber 3 and also can include many plain conductors, wherein plain conductor is connected with Constant Electric Current heating unit, utilizes Constant Electric Current type of heating to carry out temperature adjustment to plain conductor and even armored temperature measuring optical fiber.Preferably, armored temperature measuring fiber outer surface can be coated with insulating protective layer, and the withstand long term exposure temperature of armored temperature measuring optical fiber can be reached-50 DEG C ~ 100 DEG C (can make in its short time can tolerate 120 DEG C and do not damage) simultaneously.
In addition, need to add is that, distribution type fiber-optic main frame is the 16 passage distributed optical fiber temperature measurement main frames based on Raman scattering, and its effective measuring distance can reach 16km, and corresponding speed is not more than 2.5 seconds.
A kind of fiber optic sensing devices for detecting s.t.o. water termination that the utility model provides, the corrugated tube be vertically placed in storage tank is included in this fiber optic sensing devices, corrugated tube is wound with armored temperature measuring optical fiber, be provided with at least 2 multimode temperature sensing optical fibers backed up mutually in armored temperature measuring optical fiber, temperature probe and distribution type fiber-optic main frame are interconnected by multimode temperature sensing optical fiber.Adopt the fiber optic sensing devices of said structure can react the temperature conditions of each layer medium in storage tank in real time, intuitively, and draw water-oil interface related data by software for calculation analysis, finally reach the technique effect of Real-Time Monitoring profit liquid level.
The above; be only embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (5)
1. for detecting a fiber optic sensing devices for s.t.o. water termination, it is characterized in that, comprising:
Vertically be placed in the corrugated tube in storage tank, the bottom of described corrugated tube is provided with horizontal base, described corrugated tube is wound with armored temperature measuring optical fiber, at least includes 2 multimode temperature sensing optical fibers backed up mutually in described armored temperature measuring optical fiber;
Also comprise in described fiber optic sensing devices: temperature probe and distribution type fiber-optic main frame;
Described temperature probe and distribution type fiber-optic main frame are interconnected by multimode temperature sensing optical fiber.
2. a kind of fiber optic sensing devices for detecting s.t.o. water termination according to claim 1, is characterized in that, also includes many plain conductors in described armored temperature measuring optical fiber, and many plain conductors are connected with Constant Electric Current heating unit.
3. a kind of fiber optic sensing devices for detecting s.t.o. water termination according to claim 1, is characterized in that, described corrugated tube outside surface deposits stainless steel anti-corrosion layer, and the thickness of described stainless steel anti-corrosion layer is 0.25 ± 0.02mm;
Described bellows interior is filled with the fine cream of thixotropic.
4. a kind of fiber optic sensing devices for detecting s.t.o. water termination according to claim 1, is characterized in that, described armored temperature measuring fiber outer surface is coated with insulating protective layer, and the withstand long term exposure temperature of described armored temperature measuring optical fiber is-50 DEG C ~ 100 DEG C.
5. a kind of fiber optic sensing devices for detecting s.t.o. water termination according to claim 1, is characterized in that, described distribution type fiber-optic main frame is the 16 passage distributed optical fiber temperature measurement main frames based on Raman scattering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520442691.0U CN204881766U (en) | 2015-06-26 | 2015-06-26 | A optical fiber sensing equipment for detecting storage tank oil -water interface |
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| CN201520442691.0U CN204881766U (en) | 2015-06-26 | 2015-06-26 | A optical fiber sensing equipment for detecting storage tank oil -water interface |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990611A (en) * | 2015-06-26 | 2015-10-21 | 中国石油化工股份有限公司胜利油田分公司 | Optical fiber sensing equipment detecting oil-water interface of storage pot |
| CN111220646A (en) * | 2020-01-19 | 2020-06-02 | 国兴汇金(深圳)科技有限公司 | Liquid interface sensing detection method and device |
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2015
- 2015-06-26 CN CN201520442691.0U patent/CN204881766U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990611A (en) * | 2015-06-26 | 2015-10-21 | 中国石油化工股份有限公司胜利油田分公司 | Optical fiber sensing equipment detecting oil-water interface of storage pot |
| CN111220646A (en) * | 2020-01-19 | 2020-06-02 | 国兴汇金(深圳)科技有限公司 | Liquid interface sensing detection method and device |
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