CN1063334A - Well-temperature measuring installation of steam-driven observation well - Google Patents
Well-temperature measuring installation of steam-driven observation well Download PDFInfo
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- CN1063334A CN1063334A CN91100355A CN91100355A CN1063334A CN 1063334 A CN1063334 A CN 1063334A CN 91100355 A CN91100355 A CN 91100355A CN 91100355 A CN91100355 A CN 91100355A CN 1063334 A CN1063334 A CN 1063334A
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Abstract
The present invention is a kind of well-temperature measuring installation of steam-driven observation well.By the down-hole temperature transducer, transmission cable, well mouth sealing device, ground instrument are formed.It is characterized in that down-hole temperature transducer 6 is to form with the encapsulation of corrosion resistant metal pipe, its positive and negative the two poles of the earth are connected with high temperature wire 1 and seal forms down-hole temperature transducer 9.N props up the public lead of negative pole of down-hole temperature transducer 9, and is anodal respectively with a lead, and the bunch of cables that N+1 root lead is formed inserts ground instruments 7 through well mouth sealing device 8.This device precision height, price is low, well logging is reliable, and is easy to use, the well logging workload is little, the efficient height, can be for a long time under high-temperature high-pressure state temperature dynamic parameter in the monitor well.
Description
The invention belongs to fixed high temperature Well-temperature device, a kind of oil-field thick-oil mining area that is used for more specifically says so, steam injection vapour drives observes well and two-tube producing well temperature measuring equipment in the exploitation, comprise down-hole temperature transducer, transmission cable, well mouth sealing device, ground instrument etc.
The temperature data of observing in the well can provide steam to arrive the time of this well from injecting well, and then obtains the fltting speed that vapour drives the forward position, and active component and contingent steam that the simultaneous temperature profile information also provides vertical heat to drive onlap position etc.According to Temperature Datum in the same observation well well, can analyze the state of steam around this well, thereby,, can determine the distribution of steam etc. according to the Temperature Datum of many wells for stratum heat waste calculating etc. provides foundation.
Usually the Well-temperature instrument that adopts is mobile lift-type logging instrument, just carries out in a short time, and resistance to elevated temperatures is poor, and the workload of site operation is big, and labour intensity height, efficient are low.And (20～-40 ℃) people can't operate logger in the winter of severe cold, with regard to the northwest and the Northeast of China, has every year 3-4 month can't obtain well-log information approximately, can not satisfy well logging under the high-temperature high-pressure state.External fixed vapour drives observes well logging employing thermocouple.As the Charco Redende oil field, purple Cray east of Texas, USA, the lucky Belridge of Gary Fu Niyakesi Henan Bel oil field, Canadian Ah Long's Bath card oil field (Alhabasea) and flat river (peace Rivel) oil field etc.The weak point of thermocouple is: need cold junction compensation; Cost an arm and a leg; Shortcomings such as precision is low.
Task of the present invention is to avoid above-mentioned the deficiencies in the prior art part and the fixed well-temperature measuring installation of steam-driven observation well that a kind of precision high price is low, simple in structure, can work under down-hole long term high temperature (0-250 ℃) high pressure (0-10MPa) state is provided.
For finishing the technical measures that above-mentioned task takes be:
Diode is packaged into temperature pick up with the corrosion resistant metal pipe, its positive and negative the two poles of the earth with as the lead-in wire high temperature wire connect, insert in the high temperature poly-bag, with the high temperature filler high temperature poly-bag space is filled up, do not allow the gas gap of leaving a blank, seal the mouth of high temperature poly-bag with glow plug, with the high temperature binding two ends of high temperature poly-bag are tightened again and promptly constitute the down-hole temperature transducer.
N is propped up the shared single line of negative pole of down-hole temperature transducer, each is total to N root positive wire with a lead positive pole of each down-hole temperature transducer, comprise public cathode conductor N+1 root lead altogether, form the transmission cable bundle, bunch of cables joins the down-hole temperature transducer, and extended immobilization is in observing well or under the two-tube producing well as required.The other end ground plane instrument of transmission cable with the mode of temperature signal with the temperature pick up voltage signal, is sent to the ground instrument through bunch of cables, carries out microcomputer and detects, handles, shows, prints.Thereby realized at the fixed Well-temperature device of observing under the medium-term and long-term high-temperature high-pressure state of well and two-tube producing well.
Temperature transducer used diode in down-hole is the silication silicon diode temperature sensor, silicon diode temperature sensor, gallium arsenide diode temperature pick up etc.
The high temperature poly-bag of encapsulation down-hole thermometric sensing is the fluorubber bag, and the high temperature filler in the high temperature poly-bag is the high temperature estersil; Transmission cable is polytetrafluoroethylene (PTFE) high temperature wire and other high-temperature cable.
The corrosion resistant metal pipe of encapsulation diode is stainless steel tube, aluminum pipe, copper pipe.
Said high temperature resistant binding is nylon wire, polyester line etc.
The down-hole temperature transducer is the degree of depth by well at the arrangement position of down-hole, is arranged above and below at perforated interval; The number of temperature transducer what of temperature spot of measuring well is as required selected and is decided.The temperature value and the temperature curve that can reflect the down-hole formation at temperature transducer place from ground instrument 7.
Fig. 1 is the single temperature transducer structural representation in down-hole of the present invention;
Fig. 2 is the structure chart of three down-holes of the present invention temperature transducer component devices;
Be that embodiment is described in further detail structure of the present invention below with the accompanying drawing:
As shown in Figure 1, the G that encapsulates with the 1Cr18Ni9Ti stainless steel tube
2WC
1The positive and negative polarities of silicon carbide diode temperature pick up 6 and polytetrafluoroethylene (PTFE) high temperature wire 1 as lead-in wire connects get well after, insert in the fluorine poly-bag 5, the space in the high temperature poly-bag 5 is filled up the gas gap of not leaving a blank with high temperature estersil 4.Seal the mouth of fluorine poly-bag 5 with fluorubber plug 2, with high temperature resistant polyester thread 3 two ends of high temperature poly-bag 5 are tightened and promptly to have formed down-hole temperature transducer 9.
As shown in Figure 2, the public lead of 3 negative poles of three down-hole temperature transducers 9, three each personal leads of positive pole.Count three leads.Transmission cable 1 by four leads are formed by the multicore sealing device 8 of well head, inserts ground instrument 7, thereby the voltage signal mode of temperature signal with temperature pick up, handles through being transformed into ground instrument 7, shows and prints.
The present invention compared with prior art has following advantage and good effect:
1, precision and highly sensitive, thermometric is reliable, and precision of the present invention is ± 0.5%, and the used device precision such as the purple Cray east of Texas, USA are ± 1.2%.
2, high efficiency is compared with movable lifting formula logging instrument, and operating efficiency improves more than 10 times.
3, cheap, replace imported product, save foreign exchange. 1.9 ten thousand yuans of the every table apparatus of the present invention, and every in the purple Cray east of Texas, USA is 1.3 ten thousand dollars.
4, solved the difficulty that prior art can't be logged well in the winter time, use the present invention in China northeast, the northwest severe cold can increase 3-4 well logging time in every year in winter, the data that the accumulation well-log information provides to geology, increasing oil production and energy savings has great economic benefit and social benefit.
Claims (6)
1, a kind of well-temperature measuring installation of steam-driven observation well comprises down-hole temperature transducer 9, transmission cable 1, well mouth sealing device 8, and ground instrument 7 is characterized in that:
1, every temperature transducer 9 usefulness corrosion resistant metal pipe are diode 6 encapsulation, and its positive and negative the two poles of the earth are inserted in the high temperature resistant poly-bag 5 after connecting with high temperature wire 1 as lead-in wire, poly-bag 5 spaces are filled up the gas gap of not leaving a blank with high temperature resistant filler; With high temperature resistant plug seal high temperature poly-bag 5 the mouth, with high temperature binding 3 high temperature poly-bag two ends are tightened;
2, N props up the shared lead of negative pole of down-hole temperature transducer 9, and anodal each bunch of cables with a lead composition N+1 root lead inserts ground instruments 7 by multicore sealing device 8.
2, well-temperature measuring installation of steam-driven observation well as claimed in claim 1 is characterized in that said diode temperature sensor 6 is silicon carbide diode temperature pick up, silicon diode temperature sensor, gallium arsenide diode temperature pick up.
3, well-temperature measuring installation of steam-driven observation well as claimed in claim 1 is characterized in that the said down-hole arrangement position of temperature transducer 9 in the down-hole is that the degree of depth by well is arranged above and below.
4, well-temperature measuring installation of steam-driven observation well as claimed in claim 1 is characterized in that high temperature poly-bag 5 and high temperature plug 2 are thermostable fluorine rubber; High temperature filler 4 is the high temperature silicone grease, and transmission cable is polytetrafluoroethylene (PTFE) high temperature wire and high-temperature cable.
5, well-temperature measuring installation of steam-driven observation well as claimed in claim 1 is characterized in that said corrosion-resistant metal pipe is stainless steel tube, aluminum pipe and copper pipe.
6, well-temperature measuring installation of steam-driven observation well as claimed in claim 1 is characterized in that being that said high temperature resistant binding is nylon wire, polyester line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91100355A CN1063334A (en) | 1991-01-17 | 1991-01-17 | Well-temperature measuring installation of steam-driven observation well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91100355A CN1063334A (en) | 1991-01-17 | 1991-01-17 | Well-temperature measuring installation of steam-driven observation well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1063334A true CN1063334A (en) | 1992-08-05 |
Family
ID=4904575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91100355A Pending CN1063334A (en) | 1991-01-17 | 1991-01-17 | Well-temperature measuring installation of steam-driven observation well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1063334A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954376A (en) * | 2014-04-30 | 2014-07-30 | 中能电力科技开发有限公司 | Device for measuring temperature of wind turbine generator |
| CN102227543B (en) * | 2008-09-29 | 2016-06-08 | 普拉德研究及开发股份有限公司 | High-temperature downhole devices |
| CN106837249A (en) * | 2015-12-03 | 2017-06-13 | 中国石油天然气股份有限公司 | Oil production well |
-
1991
- 1991-01-17 CN CN91100355A patent/CN1063334A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102227543B (en) * | 2008-09-29 | 2016-06-08 | 普拉德研究及开发股份有限公司 | High-temperature downhole devices |
| CN103954376A (en) * | 2014-04-30 | 2014-07-30 | 中能电力科技开发有限公司 | Device for measuring temperature of wind turbine generator |
| CN103954376B (en) * | 2014-04-30 | 2017-02-15 | 中能电力科技开发有限公司 | Device for measuring temperature of wind turbine generator |
| CN106837249A (en) * | 2015-12-03 | 2017-06-13 | 中国石油天然气股份有限公司 | Oil production well |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |