CN203847106U - Intelligent offshore oil well sampler - Google Patents
Intelligent offshore oil well sampler Download PDFInfo
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- CN203847106U CN203847106U CN201320751450.5U CN201320751450U CN203847106U CN 203847106 U CN203847106 U CN 203847106U CN 201320751450 U CN201320751450 U CN 201320751450U CN 203847106 U CN203847106 U CN 203847106U
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- electromagnetic valve
- sampling
- sampling cylinder
- piston
- cylinder barrel
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Abstract
The utility model discloses an intelligent offshore oil well sampler comprising a first electromagnetic valve, a second electromagnetic valve, a sampling cylinder, a piston, a return spring, a sample storage container and a controller. The piston is arranged in the sampling cylinder, one end of the piston and the sampling cylinder form an inner cavity, and the return spring is arranged between the other end of the piston and the end face of the sampling cylinder; one end of the first electromagnetic valve is connected to a fluid pipeline, and the other end is connected to the inner cavity of the sampling cylinder; one end of the second electromagnetic valve is connected to the inner cavity of the sampling cylinder, and the other end is connected to the sample storage container; the controller receives signals of a multiphase flow meter, and the output opening and closing signals of the controller are transmitted to the first electromagnetic valve and the second electromagnetic valve. The intelligent offshore oil well sampler is additionally arranged on the basis of an offshore oil platform multiphase flow meter, sampling process automation can be implemented through controller editable software, the oil well fluid samples are more representative, and continuous sampling can be performed conveniently.
Description
Technical field
The utility model relates to a kind of for demarcating the oil well well liquid sampler of multi-phase flowmeter in offshore oil exploitation process.
Background technology
Oil-gas-water metering is a very important link in oil gas field manufacturing process.Traditional method of measurement is generally first oil gas water to be carried out to separation and then metering.Three phase metering separator volume is large and bad to the separating effect of viscous crude, so its application has been subject to certain restriction.Multi-phase flowmeter has little, the small investment of taking up room, to features such as separating effect requirement are low, on offshore oil is produced, be widely used, but it is larger in application, to find to use multi-phase flowmeter error in dipping, error main cause is:
1, the impact of high gassiness.In multiphase flow, during gas too high levels, easily cause partially liq to be dispersed in gas phase, the gas liquid ratio of superelevation is the inaccurate main cause of metering;
2, high moisture impact.When measured stream height is moisture, tested oil mass will produce larger error, and equally when low when moisture, the error of the tested water yield is just larger, and its main cause is that non-high-precision meter can be more obvious to micro-error in dipping;
3, Venturi meter error in dipping;
4, can not intelligence get the typical profit sample of moisture fluctuation and make error large.
Offshore oilfield adopts the mode of " banked direction control valves+multi-phase flowmeter " single port oil well to be carried out to the measurement of oil, gas, water at present, because the large reason of error also needs the manual sampling of single port oil well well liquid, supplement and check the data that multi-phase flowmeter is analyzed, comparative analysis, demarcates multi-phase flowmeter in time.How getting representative oil sample and do Analysis and measurement result and compare, is the key of the judgement multi-phase flowmeter accuracy of measuring.Conventional oil well well liquid hand-operated sampling device is a simple sample cock, and valve is arranged on by well head pipeline, by Artificial Control valve switch size, in pipeline, extracts oil well well fluid sample, carries out the analysis of well liquid moisture content.Owing to extracting well liquid device, do not carry out Oil-gas Separation function, extract well liquid gas mixture simultaneously from the ejection of valve sampling mouth, bring difficulty to sampling work; When, oil well mixing material flow pattern high at gas, oily mixing ratio is changeable, be difficult to obtain well liquid sample within the regular hour, sampling longevity of service, also causes a large amount of natural gas leakings, forms handling safety hidden danger and air pollution, environmental protection risk.In addition, due to manual sampling, sample time length randomness and the unstability of produced liquid in oil well flow pattern itself, make the oil well well liquid sampler that uses at present, the moisture larger difference that exists of the actual production fluid of moisture and oil well of obtained sample.The well liquid sample with representative is grown, is difficult to obtain to the oil well sampling spended time that part intermittent oil well or gas production are large, be used for proofreading multiphase flow rates timing poor reliability, can not take measures in time to demarcate gamma sensor, be the main cause that causes multi-phase flowmeter test error large.
For the large well of moisture fluctuation, manually be also difficult to get the same profit sample of data recording with multi-phase flowmeter.Get the problem of bringing less than typical profit sample: to the judgement of multi-phase flowmeter nominal time, bring error on the one hand, cause manpower and materials waste; Individual well typical case moisture content is inaccurate on the other hand, brings deviation to oil pool analysis formation data.Although scene samples several times, after mixing, survey moisture content,, there is larger error in the well that moisture fluctuation is large.And bring very large workload to execute-in-place work, especially at the fewer wellhead platform of operating personnel, when sampling holding time is difficult to take into account other operations when many, to on-site supervision, bring unsafe factor.
Above-mentioned discussion content object be to reader introduce may to below by the various aspects of the relevant technology of the various aspects of the present utility model that are described and/or advocate, believe that this discussion content contributes to provide background information for reader, to be conducive to understanding better various aspects of the present utility model, therefore, should be appreciated that it is with this angle, to read these to discuss, rather than admit prior art.
Utility model content
The purpose of this utility model is to avoid deficiency of the prior art and a kind of offshore field intelligence sampler is provided, and solves the low problem of multi-phase flowmeter error Yamato work sampling efficiency.
The purpose of this utility model is achieved through the following technical solutions:
A kind of offshore field intelligence sampler is provided, comprise the first electromagnetic valve, the second electromagnetic valve, sampling cylinder barrel, piston, back-moving spring, sample storage container, controller, described piston is arranged in sampling cylinder barrel, piston one end forms inner chamber with sampling cylinder barrel, described back-moving spring is arranged between the other end and sampling cylinder barrel end face of piston, described first electromagnetic valve one end is connected with well liquid pipeline, the other end is connected with sampling inner cavity of cylinder, described second electromagnetic valve one end is connected with sampling inner cavity of cylinder, the other end is connected with sample storage container, described controller receives the signal of multi-phase flowmeter, the output of controller opens and closes signal to the first electromagnetic valve, the second electromagnetic valve.
Wherein, between described the first electromagnetic valve and well liquid pipeline, be serially connected with self-supporting pressure-control valve.
Wherein, between described the first electromagnetic valve and well liquid pipeline, be serially connected with ball valve.
Wherein, also comprise pressure safety valve, the input of pressure safety valve is connected with sampling inner cavity of cylinder.
Wherein, on described sample storage container, be provided with manual three-way relief valve.
The offshore field intelligence sampler that the utility model provides, comprise the first electromagnetic valve, the second electromagnetic valve, sampling cylinder barrel, piston, back-moving spring, sample storage container, controller, described piston is arranged in sampling cylinder barrel, piston one end forms inner chamber with sampling cylinder barrel, described back-moving spring is arranged between the other end and sampling cylinder barrel end face of piston, described first electromagnetic valve one end is connected with well liquid pipeline, the other end is connected with sampling inner cavity of cylinder, described second electromagnetic valve one end is connected with sampling inner cavity of cylinder, the other end is connected with sample storage container, described controller receives the signal of multi-phase flowmeter, the output of controller opens and closes signal to the first electromagnetic valve, the second electromagnetic valve.The instantaneous moisture content of support multi-phase flowmeter of the present utility model, can sample, fixed time interval sampling, intelligent decision moisture content change, and carries out the adjustment of the automatic sampling time interval in time.Liquid, gas separation, intelligent continuous sampling, improve sampling accuracy voluntarily, reduced natural gas leaking, improved processing safety, saves the manual sampling time, raises labour efficiency.
Accompanying drawing explanation
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in accompanying drawing does not form any restriction of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to the following drawings other accompanying drawing.
Fig. 1 is the structural representation of offshore field intelligence sampler.
Fig. 2 is the moisture content fluctuation schematic diagram of multi-phase flowmeter measured value.
The specific embodiment
In order to make those skilled in the art understand better the technical solution of the utility model, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, it should be noted that, in the situation that not conflicting, the application's embodiment and the feature in embodiment can combine mutually.
Core of the present utility model is to provide a kind of offshore field intelligence sampler, solves the low problem of multi-phase flowmeter error Yamato work sampling efficiency.
As shown in Figure 1, offshore field intelligence sampler described in the utility model, comprises the first electromagnetic valve 1, the second electromagnetic valve 2, sampling cylinder barrel 3, piston 4, back-moving spring 5, sample storage container 6, controller 7.Described piston 4 is arranged in sampling cylinder barrel 3, and piston 4 one end form inner chamber with sampling cylinder barrel 3, and described back-moving spring 5 is arranged between the other end and sampling cylinder barrel 3 end faces of piston 4.Described the first electromagnetic valve 1, the second electromagnetic valve 2 are preferably 3/8 " 150LB electromagnetic valve.Described first electromagnetic valve 1 one end is connected with well liquid pipeline 12, and the other end is connected with sampling cylinder barrel 3 inner chambers, and described second electromagnetic valve 2 one end are connected with sampling cylinder barrel 3 inner chambers, and the other end is connected with sample storage container 6.Described controller 7 receives the signal of multi-phase flowmeter 13, and the output of controller 7 opens and closes signal to the first electromagnetic valve 1, the second electromagnetic valve 2, and controller 7 can be realized control by software for editing.
Preferably, between described the first electromagnetic valve 1 and well liquid pipeline, be serially connected with ball valve 9, self-supporting pressure-control valve 8, ball valve 9 is preferably 3/8 " 600LB ball valve, self-supporting pressure-control valve 8 is preferably 3/8 " 600LB self-supporting pressure-control valve.
Preferably, described sampling cylinder barrel 3 inner chambers are also connected to pressure safety valve 10, and pressure safety valve 10 provides overpressure protection for sampling cylinder barrel 3 inner chambers.On described sample storage container 6, be provided with manual three-way relief valve 11, manual three-way relief valve 11 is preferably 3/4 " 150LB manual three-way relief valve.Manual three-way relief valve 11 is connected to through gas relief line the row of closing, and its effect is that sample storage container 6 builds the pressure while not sampling, pressure release during sampling.
The utility model operating principle is as follows: at multi-phase flowmeter, measure outlet downstream opening and connect as Fig. 1 device, particular location will be determined by calculating according to multi-phase flowmeter measurement category.By programming, control electromagnetic valve and control sample time.With the timing automatic example that is sampled as, in the time need measuring certain mouthful of oil well, first on middle control computer, control banked direction control valves and forward certain mouthful of oil well that needs measurement to, on controller, start well measurement, input section and time interval sample time simultaneously, after official hour section starts, first controller controls after the first electromagnetic valve 1 is opened a period of time and cuts out, multi-phase flowmeter downstream well liquid is introduced sampling cylinder barrel 3 inner chambers, piston 4 is under well hydraulic coupling impetus, compression reseting spring 5, well liquid enters and is full of and samples cylinder barrel 3 inner chambers, controller controls after the second electromagnetic valve 2 is opened a period of time again and cuts out, piston 4 resets under the effect of back-moving spring 5, the well hydraulic pressure of sampling cylinder barrel 3 is entered in sample storage container 6.Within the next time interval, repeat above-mentioned sampling procedure, until detachable sample storage container all completes the sampling of certain mouthful of well, the sample storage container that dismounting completes this mouthful of oil well sampling, new sample storage container can be installed immediately and continue lower a bite oil well sampling, sample storage container after having sampled is delivered to chemical laboratory and measure oil-containing, moisture content, final sampling and measuring completes.
Below in conjunction with concrete operating mode, describe the utility model in detail.
As shown in Figure 2, by programming, can get the instantaneous moisture content data of multi-phase flowmeter C1, second data C2 after one minute, computer contrasts automatically | and (T2-T1)/T is average | whether be greater than the fluctuation range that 10%(sets), if be not more than, just continue to get next point, until | (Tx-T1)/T is average | be greater than 10%, X records the time, using Tx equally as initial value, calculate and meet | (Ty-Tx)/T(x, y) average | be greater than 10%, write down y, proportion of utilization formula can predict that from Ty point, getting back to the average time used is: △ T=(y-X) * so | Ty-TXY is equal |/| Ty-Tx | be next sample time, the first electromagnetic valve 1 opens after 2 seconds and cuts out, after opening 10S, the second electromagnetic valve 2 closes, sampling 20ml.At this moment the data of getting are the average of upper two crests and trough.Calculate successively next sample time.Can continuous sampling 100 times (according to sample storage volume settings).
Except above-mentioned sampling mode, the utility model can also be realized timing automatic sampling: the input sample time of section and after the time interval, sampler is automatically at defined time sampling on request in the time period.
The utility model can be concentrated as single port oil well samples in time, can be accurately than school multi-phase flowmeter, and expiration time is demarcated in judgement in time; The interval continuous sampling of fixing time; Can be according to moisture rate of change automatic decision, the intelligent sampling interval that determines.Can also can greatly alleviate site operation personnel's labour intensity for oil reservoir personnel provide moisture data more accurately, make many a guarantees of site safety.
In description above, set forth a lot of details so that fully understand the utility model, still, the utility model can also adopt other to be different from other modes described here and implement, and therefore, can not be interpreted as the restriction to the utility model protection domain.
In a word; although the utility model has exemplified above-mentioned preferred embodiment; but should illustrate; although those skilled in the art can carry out various variations and remodeling; unless such variation and remodeling have departed from scope of the present utility model, otherwise all should be included in protection domain of the present utility model.
Claims (5)
1. offshore field intelligence sampler, it is characterized in that: comprise the first electromagnetic valve (1), the second electromagnetic valve (2), sampling cylinder barrel (3), piston (4), back-moving spring (5), sample storage container (6), controller (7), described piston (4) is arranged in sampling cylinder barrel (3), piston (4) one end forms inner chamber with sampling cylinder barrel (3), described back-moving spring (5) is arranged between the other end and sampling cylinder barrel (3) end face of piston (4), described the first electromagnetic valve (1) one end is connected with well liquid pipeline, the other end is connected with sampling cylinder barrel (3) inner chamber, described the second electromagnetic valve (2) one end is connected with sampling cylinder barrel (3) inner chamber, the other end is connected with sample storage container (6), described controller (7) receives the signal of multi-phase flowmeter (13), the output of controller (7) opens and closes signal to the first electromagnetic valve (1), the second electromagnetic valve (2).
2. offshore field intelligence sampler according to claim 1, is characterized in that: between described the first electromagnetic valve (1) and well liquid pipeline, be serially connected with self-supporting pressure-control valve (8).
3. offshore field intelligence sampler according to claim 1, is characterized in that: between described the first electromagnetic valve (1) and well liquid pipeline, be serially connected with ball valve (9).
4. offshore field intelligence sampler according to claim 1, is characterized in that: also comprise pressure safety valve (10), the input of pressure safety valve (10) is connected with sampling cylinder barrel (3) inner chamber.
5. offshore field intelligence sampler according to claim 1, is characterized in that: on described sample storage container (6), be provided with manual three-way relief valve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320751450.5U CN203847106U (en) | 2013-11-26 | 2013-11-26 | Intelligent offshore oil well sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320751450.5U CN203847106U (en) | 2013-11-26 | 2013-11-26 | Intelligent offshore oil well sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847106U true CN203847106U (en) | 2014-09-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320751450.5U Withdrawn - After Issue CN203847106U (en) | 2013-11-26 | 2013-11-26 | Intelligent offshore oil well sampler |
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| Country | Link |
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| CN (1) | CN203847106U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603661A (en) * | 2013-11-26 | 2014-02-26 | 中国海洋石油总公司 | Intelligent offshore oil well sampler and sampling method |
| WO2016127211A1 (en) * | 2015-02-10 | 2016-08-18 | Fluid Transfer Technology Pty Ltd | Liquid sampling |
-
2013
- 2013-11-26 CN CN201320751450.5U patent/CN203847106U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603661A (en) * | 2013-11-26 | 2014-02-26 | 中国海洋石油总公司 | Intelligent offshore oil well sampler and sampling method |
| CN103603661B (en) * | 2013-11-26 | 2016-11-09 | 中国海洋石油总公司 | Intelligent offshore oil well sampler and sampling method |
| WO2016127211A1 (en) * | 2015-02-10 | 2016-08-18 | Fluid Transfer Technology Pty Ltd | Liquid sampling |
| US20180045616A1 (en) * | 2015-02-10 | 2018-02-15 | Fluid Transfer Technology Pty Ltd | Liquid sampling |
| EA033432B1 (en) * | 2015-02-10 | 2019-10-31 | Fluid Transfer Tech Pty Ltd | Liquid sampling |
| US10520399B2 (en) | 2015-02-10 | 2019-12-31 | Fluid Transfer Technology Pty Ltd | Liquid sampling |
| AU2016218940B2 (en) * | 2015-02-10 | 2021-08-05 | Fluid Transfer Technology Pty Ltd | Liquid sampling |
| AU2020267317A2 (en) * | 2015-02-10 | 2021-10-14 | Fluid Transfer Technology Pty Ltd | Liquid sampling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140924 Effective date of abandoning: 20161012 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |