CN102108861B - Underground layered gas-liquid two phase fluid pressure and temperature-retaining sampling device - Google Patents
Underground layered gas-liquid two phase fluid pressure and temperature-retaining sampling device Download PDFInfo
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- CN102108861B CN102108861B CN 201110063499 CN201110063499A CN102108861B CN 102108861 B CN102108861 B CN 102108861B CN 201110063499 CN201110063499 CN 201110063499 CN 201110063499 A CN201110063499 A CN 201110063499A CN 102108861 B CN102108861 B CN 102108861B
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Abstract
The invention discloses an underground layered gas-liquid two phase fluid pressure and temperature-retaining sampling device, which is arranged on the inner wall of a drilled hole or a sleeve and consists of a packer system, a liquid sample inlet system, a gas sample inlet system, an automatic multi-way valve, a sampling system, a temperature control system, and an external pressure/flow control system, wherein a thermal-insulation layer or temperature control system covers the outside of the entire sampling device. The device accurately controls the layer under ground fluid sampling position to realize gas and liquid fluid sampling at different layer positions of a stratum, ensures the temperature and pressure in a sampling process are consistent with those of the underground fluid, and improves the pressure and temperature-retaining degree of the fluid in the sampling process. The principle of the device is simple, the parts are assembled simply and the device is suitable for multilayer sampling in a drilled well and underground gas-liquid two-phase fluid sampling.
Description
Technical field
The present invention relates to deep formation inner fluid sampling field, more specifically relate to layering gas-liquid two-phase fluid high-fidelity sampling device in a kind of well, be suitable for the fidelity sampling of underground fluid.
Background technology
Underground fluid (comprising the underground fluids such as oil, oil gas, underground water, gas reservoir, bittern water) investigation work content comprises composition, concentration, distribution and the status transmission in underground environment and the variation tendency of the characteristic of understanding underground fluid and natural conditions, fluid, and fluid potential hazard that people ' s health and living environment are brought.(comprising the underground fluids such as oil, oil gas, underground water, gas reservoir, bittern water) sampling technique is occupied very important status in underground fluid research.Various fluid sampling technology are paid much attention in countries in the world, sampling technique has also been carried out in depth research, and developed multiple sampling appliance.
Various Bailer samplers, discontinuous interval sampler, underground water sampling pump being arranged at present and directly advance descends water sampling with exposing various types of samplers such as screen pack type sampler, airtight screen pack type sampler, Waterloo sampler, U-shaped sampler in situ.They respectively have characteristics, but generally speaking can not accurately control sampling rate, sampling amount, can not guarantee temperature and pressure condition and the sampling state consistency of taking a sample fully; Sampling can not have been satisfied the requirement of modern high accuracy analysis when can't satisfy underground multilayer stratum simultaneously.
More and more higher to the requirement of the precision of sampling and sample fidelity during modern project uses, traditional sampling method all faces sample rate, sampling amount is difficult to control, and sampling pressure and temperature can't keep.How to guarantee sampling tube internal pressure, temperature after the sampling? how does sampler guarantee out sample? how is Quality control that pressure and temp is constant sampling and going out sample? how to realize the multi-layered fluid sampling? this is sampler problem in the urgent need to address.
Summary of the invention
The objective of the invention is to overcome the shortcoming and defect that prior art exists, satisfy existing sampling requirement, be to provide layering gas-liquid two-phase fluid high-fidelity sampling device in a kind of well, realize that a sampler to the sampling of different layers bit stream body, guarantees differently the layer by layer fluid sampling of position; Accurate temperature, the pressure condition in control sampling rate and the sampling process can keep the pressure and temperature of temperature, pressure and underground fluid of sample more consistent after sampling process and sampling.Adopt large capacity relaying container with respect to fidelity sample in the pipeline of U-shaped sampler bottom, this device increases large bottom volume, increase the capacity of fidelity sample, reduce simultaneously the ratio of the mixing in the flow process and step-down distortion in pipeline, sample and other fluid contacts that minimizing is taked.This principle of device and simple in structure, assembling is simple, improves the reliability of system and reduces cost of manufacture.Compatibly descend very much the pressure tight sampling of the gas-liquid two-phase fluid on multilayer stratum.
In order to realize above-mentioned purpose, the present invention adopts following technical measures:
Layering gas-liquid two-phase fluid high-fidelity sampling device in a kind of well, it is made of jointly packer system, Liquid sample introduction system, gas sampling system, automatic multiway valve, sampler, temperature control system and external pressure/flow-control part.The packer system comprises first packer, second packer, the 3rd packer, the 4th several packer such as packer (wait numeral the like); The Liquid sample introduction pipeline of Liquid sample introduction system comprises first floor sample introduction pipeline, second layer sample introduction pipeline, the 3rd layer of some sample introduction pipeline such as sample introduction pipeline (wait numeral the like), and liquid filter comprises first floor sample introduction strainer, second layer sample introduction strainer, the 3rd layer of some sample introduction strainer such as sample introduction strainer (wait numeral the like); The gas sampling pipeline of gas sampling system comprises first floor sample introduction pipeline, second layer sample introduction pipeline, the 3rd layer of some sample introduction pipeline such as sample introduction pipeline (wait numeral the like), and pneumatic filter comprises first floor sample introduction strainer, second layer sample introduction strainer, the 3rd layer of some sample introduction strainer such as sample introduction strainer (wait numeral the like); Automatically control multiway valve, sampler are that pressure/flow-control pipeline comprises the first pressure/flow control tube, the second sampling line, the 3rd relay; The 4th one way valve, the 5th valve, the 6th valve, the 7th counterbalance valve; Temperature control system comprises the first insulation layer, the second distributed temperature control elements, the 3rd internal temperature sensor; External pressure/flow control system, exterior protection form.Packer system, Liquid sample introduction system, gas sampling system, automatic multiway valve, sampler, temperature control system are housed in drilling well inwall or sleeve pipe.
Layering gas-liquid two-phase fluid high-fidelity sampling device in a kind of well is characterized in that: at drilling well inwall or internal surface of sleeve pipe packer system, Liquid sample introduction system, gas sampling system, automatic multiway valve, sampler, temperature control system are housed; The packer system comprises the first packer, the second packer, the 3rd packer, the 4th packer; The Liquid sample introduction system comprises Liquid sample introduction pipeline and liquid filter, and the Liquid sample introduction pipeline comprises first floor sample introduction pipeline, second layer sample introduction pipeline, the 3rd layer of sample introduction pipeline; First floor sample introduction pipeline, second layer sample introduction pipeline, the 3rd layer of sample introduction pipeline are worn respectively to the first packer, the second packer and the 3rd packer bottom, more multi-layered sample introduction pipeline the like, every layer of terminal strainer that connects of sample introduction pipeline; The gentle body strainer of gas sampling system air inclusion sample introduction pipeline, gas sampling pipeline comprise first floor sample introduction pipeline, second layer sample introduction pipeline, the 3rd layer of sample introduction pipeline; First floor sample introduction pipeline, second layer sample introduction pipeline, the 3rd layer of sample introduction pipeline are worn respectively to the first packer, the second packer and the 3rd packer bottom, more multi-layered sample introduction pipeline the like, every layer of terminal pneumatic filter that connects of sample introduction pipeline; The second probe tube links to each other with the 4th one way valve, the 5th valve, the first pressure/flow control tube links to each other with the 6th valve, the 3rd relay respectively, the 7th counterbalance valve links to each other with the second probe tube, the 4th one way valve respectively with the 3rd relay, automatically control multiway valve and link to each other; Temperature control system comprises the first insulation layer, the second distributed temperature control elements, the 3rd internal temperature sensor, the second distributed temperature control elements is close to probe tube and pressure/flow control tube, the 3rd internal temperature sensor and probe tube and pressure/flow control tube are close to, and the first insulation layer wraps up the second distributed temperature control elements, the 3rd internal temperature sensor and probe tube and pressure/flow control tube.
Described the 3rd relay of pressure flow hybrid control comprises the first relaying slide block, the second high-pressure bottle, the 3rd insulation layer, the 4th pressure/flow-control chamber, the 5th sampling room, it is inner that the first relaying slide block is positioned at the second high-pressure bottle, separating the second high-pressure bottle is the 4th pressure/flow-control chamber and the 5th sampling room's two parts, the 4th pressure/flow-control chamber links to each other with the first pressure/flow control tube, the 5th sampling room links to each other with the second probe tube, device outer wrap the 3rd insulation layer after connecting.
The packer system: the characteristics of packer system form the packer system for several packer series connection, separate the stratum between the packer, form the sampling environment of relative closure.The modes of operation such as setting, the deblocking of packer system are identical with conventional packer.Difference is being passed packer with Liquid sample introduction pipeline and the gas sample feeding pipe road of different layers position, forms the sample introduction to the different layers position.
Liquid sample introduction system and gas sampling system: each layer position has corresponding gas sampling pipeline and Liquid sample introduction pipeline, thereby form gas and the liquid of different layers position taken a sample; At each sample introduction BOP liquid filter and pneumatic filter are set, prevent that large granular impurity or suspension from entering sampling system and sampler reduces the automatically working effect of the elements such as control multiway valve, one-way cock, counterbalance valve.
Automatically control multiway valve: automatically controlling multiway valve is the multi-joint logical valve of circuit control, and product is the standard industry product, such as: six-way valve, automatic eight leads to the valves such as valves automatically, and its Main Function is for controlling different sample introduction pipelines and docking with sampling line.Automatically the control cables of control multiway valve adopts the cable of oil, gas industrial.
Automatically control multiway valve, Liquid sample introduction pipeline, gas sampling pipeline co-controlling enter layer position and the gas-liquid type of fluid of sampler sample; Reduced simultaneously sampler with upper pipeline quantity.
Sampler: sampler has adopted pressure/flow-control pipeline, valve, relay, sampling line, one way valve, valve and counterbalance valve.Valve partly is connected with external pressure/flow-control, partly controls the work of relay by external pressure/flow-control, form in the relay sample introduction with go out sample.One way valve guarantees that sampler can only unidirectional sample introduction.
The relaying slide block at relay middle part is divided into sampling room and pressure/flow-control chamber with high-pressure bottle.Be full of liquid or gas in pressure/flow-control chamber, its density is lower than the density of taking fluid, realizes pressure and the flow-control to the sampling room by connecting thereon external pressure/flow-control equipment.Valve-off and counterbalance valve reduce pressure/flow-control room pressure by external pressure/flow control system, and the relaying slide block is delivered to the sampling room with pressure/flow-control room pressure, and separate pressure/flow-control chamber and sampling room's two parts fluid.When sampling room's pressure a little less than sampling during formation fluid pressure, the sampling room begins sample introduction, the relaying slide block slides simultaneously, pressure/flow-control chamber volume reduces; Open valve or counterbalance valve, increase pressure/flow-control room pressure or volume by external pressure/flow control system, pressure/flow-control chamber expansion, the relaying slide block slides, the sampling room begins sample, and counterbalance valve guarantees that outlet pressure is similar to or is higher than the pressure of underground fluid simultaneously.Relay outer wrap insulation layer is realized the maintenance of sample temperature to keep the temperature of sample.Relay also can adopt similar industrial products, and for example: Nantong flies the relay of space.
Temperature control system: temperature control partly comprises temperature pick up, distributed temperature control elements (as: distributed resistance silk, heating pipe line), insulation layer, external temperature control assembly and power supply form jointly, so that the temperature on the temperature of sampling line and sampling stratum is consistent, or remain predetermined temperature by temperature control system.Temperature control system keeps the temperature condition of fluid.
External pressure/flow control system: comprise that pipeline is connected with external pressure/flow-control equipment, Open valve, external pressure/flow control component can be constant flow pump, flow pump, measuring pump, pressure source, can accurately control like this flow and pressure in the sampling room of relay, guarantee that in sample introduction and the sampling process, fluid pressure is similar to or is not less than the fluid pressure on sample introduction stratum.
External pressure/flow control system is connected with sampler and forms complete sampling part, can finish the fluid sampling in the sampling room that enters the relaying container.
External pressure/flow control system associating temperature control system guarantees the variation such as the segregation/desorb of dissolved matter in fluid phase change that sample can not cause because Pressure/Temperature changes or the fluid and causes the variation of properties of samples,
Exterior protection: if need protection device, the armor layer can be set outside whole device, protection inner member and insulation layer.Armor can adopt the materials such as plastics composite bed of common metal pipe, plastics, rubber, multilayer proofing, embedded gauze wire cloth to make.Preparation method is with reference to the preparation method of general device topping.
The using method of sampler:
1, makes corresponding sampler according to the present invention;
2, sampler is connected external pressure/flow-control equipment, be filled with in pressure/flow-control chamber fluid (such as: the liquid state such as oil, water, its density need to be lower than the density of sampling, preferably adopts N
2, He, low-density and the chemical property gas of inertia comparatively), sampling room's volume of sampler relaying container is adjusted into minimum.
3, adjust the spacing between the packer of different layers position in the packer system according to sampling formation thickness relation, then adopt oil, natural gas, the departmental standard methods such as ore deposit sampler is put into boring, notice in the lower packet process that sampling line and pressure/flow-control pipeline twine problem, preferably be fixed on oil pipe or above the wire hawser, lower packet is to the degree of depth and the set packer system that set.
4, the temperature of adjustment sampler is consistent with the temperature of sampling scope, and temperature control ± 0.2 degree scope is easy to reach; Side by side the pressure of layer fluid reaches stable.
5, adjustment is automatically controlled and is connected valve more, adjusts to sampling horizon and gas sample feeding pipe road or Liquid sample introduction pipeline, thus layer position and the fluid phase state of control sampling.
6, open ambient pressure/flow-control equipment, Open valve (the perhaps controlled pressure of low the back of pressure valve, reduce pipeline inner pressure), Open valve, impel the relaying slide block to slide by external pressure/flow-control equipment, CV expansion, pressure/flow-control chamber volume reducing, the underground deep fluid enters the sampling room by one way valve, so that sampling room's sample introduction of relay.Pressure or the flow velocity of control external pressure/flow-control equipment, for example: control measuring pump piston movement speed, fluid can not cause owing to sample rate is too fast that pressure or variations in temperature cause fluid properties to change.
7, reach sample volume after, Open valve (is perhaps adjusted counterbalance valve, guarantee when getting fluid sample that the sampling line fluid pressure approaches or the fluid pressure of sampling horizon), to open ambient pressure/flow-control equipment and promote that the relaying slide block slides in the relay, CV reduces and also goes out sample.
8, sampling complete after, repeat the 5-7 process, be the fidelity that guarantees sampling, the same layer position is taken a sample best more than 2 times, for cleaning sampler, is sample introduction for the second time for the first time.
9, the sampling complete after, the deblocking packer system takes out whole sampler.
Points for attention: before sampling, need repetition 5-7 process once, clean the inner impurity of sampler;
The present invention has following advantages and good effect:
1, realizes that a sampler to the sampling of different layers bit stream body, guarantees differently the layer by layer fluid sampling of position;
2, accurately control temperature, pressure condition in sampling rate and the sampling process, after sampling process and sampling, can keep the pressure and temperature of temperature, pressure and underground fluid of sample more consistent.
3, the sampling decorum has adopted relay, and jumbo relay container increases the capacity of fidelity section sample, has increased the quantity of the condition sample that maintains the original state in the sampling process; Reduce sample and mix in sampling line and the step-down distorted portion, the sample that simultaneously reduction is taked contacts with other fluids, comprises the fluid in pressure/flow-control pipeline, has increased the fidelity of taking sample;
4, adopt the method for timesharing to take full advantage of various piece, reduced number of elements, particularly pressure/flow-control pipeline and sampling line; Principle and simple in structure is assembled simply simultaneously, improves the reliability of system and reduces cost of manufacture.
In a word, because the ratio of performance to price of the present invention is high, therefore can be widely used in the project of various field trials to underground complex fluid sample analysis.
Description of drawings
Fig. 1 is layering gas-liquid two-phase fluid high-fidelity sampling device structural representation in a kind of well;
Fig. 2 is the temperature control system structural representation of layering gas-liquid two-phase fluid high-fidelity sampling device in a kind of well;
Fig. 3 is the sampler structural representation of layering gas-liquid two-phase fluid high-fidelity sampling device in a kind of well;
Fig. 4 is the relay structural representation of layering gas-liquid two-phase fluid high-fidelity sampling device in a kind of well;
Fig. 5 is gas and the Liquid sample introduction system architecture schematic diagram of layering gas-liquid two-phase fluid high-fidelity sampling device in a kind of well;
Fig. 6 is the packer system architecture schematic diagram of layering gas-liquid two-phase fluid high-fidelity sampling device in a kind of well;
Wherein:
10-packer system (be the general designation of different layers position packer, comprise with lower member)
First packer of 11-; (specifically referring to preparation method, market all can be purchased);
Second packer of 12-; (concrete model is seen preparation method, and market all can be purchased)
The 3rd packer of 13-; (concrete model is seen preparation method, and market all can be purchased)
The 4th packer of 14-; (concrete model is seen preparation method, and market all can be purchased)
The numeral such as 15-the like; (4-20)
20-Liquid sample introduction system (being the general designation of Liquid sample introduction pipeline 21 and liquid filter 22)
21-Liquid sample introduction pipeline (general designation of different layers Liquid sample introduction pipeline comprises with lower member)
211-first floor sample introduction pipeline;
212-second layer sample introduction pipeline;
The 3rd layer of sample introduction pipeline of 213-;
The numeral such as 214-the like; (4-20)
22-liquid filter (general designation of different layers sample introduction liquid filter comprises with lower member)
221-first floor sample introduction strainer (concrete model is referring to preparation method, and market all can be purchased);
222-second layer sample introduction strainer; (concrete model is referring to preparation method, and market all can be purchased)
The 3rd layer of sample introduction strainer of 223-; (concrete model is referring to preparation method, and market all can be purchased)
The numeral such as 224-the like; (4-20)
30-gas sampling system (being the general designation of gas sampling pipeline 31 and pneumatic filter 32)
31-gas sampling pipeline (general designation of different layers gas sampling pipeline comprises with lower member)
311-first floor sample introduction pipeline;
312-second layer sample introduction pipeline;
The 3rd layer of sample introduction pipeline of 313-;
The numeral such as 314-the like; (4-20)
32-pneumatic filter (be the general designation of different layers sample introduction strainer, comprise with lower member)
321-first floor sample introduction strainer (concrete model is referring to preparation method, and market all can be purchased or any model)
322-second layer sample introduction strainer (concrete model is referring to preparation method, and market all can be purchased or any model)
The 3rd layer of sample introduction strainer of 323-(concrete model is referring to preparation method, and market all can be purchased or any model)
The numeral such as 324-the like; (4-20)
40-controls multiway valve automatically;
The 50-sampler comprises with lower member;
51-pressure/flow-control pipeline;
The 52-sampling line;
The 53-relay; (concrete model is referring to preparation method);
531-relaying slide block;
532-high-pressure bottle (concrete model is referring to preparation method, and market all can be purchased);
533 – insulation layers;
534 – pressure/flow-control chamber;
The 535-sampling room;
54-one way valve (concrete model is referring to preparation method, and market all can be purchased);
55-valve (concrete model is referring to preparation method, and market all can be purchased);
56-valve (concrete model is referring to preparation method, and market all can be purchased);
57 – counterbalance valves (concrete model is referring to preparation method, and market all can be purchased);
The 60-temperature control system; (be the general designation of temperature control element, comprise with lower member)
The 61-insulation layer;
62-distributed temperature control elements (concrete model is referring to preparation method, and market all can be purchased);
63-internal temperature sensor (concrete model is referring to preparation method, and market all can be purchased);
70-drilling well or internal surface of sleeve pipe.
The specific embodiment
Describe in detail below in conjunction with drawings and Examples:
Layering gas-liquid two-phase fluid high-fidelity sampling device in a kind of well, sampler is made of jointly packer system 10, Liquid sample introduction system 20, gas sampling system 30, automatic multiway valve 40, sampler 50, temperature control system 60 and external pressure/flow-control part, exterior protection.In drilling well or internal surface of sleeve pipe 70 packer system 10, Liquid sample introduction system 20, gas sampling system 30, automatic multiway valve 40, sampler 50, temperature control system 60 are housed.
Liquid sample introduction system 20 comprises Liquid sample introduction pipeline 21 and liquid filter 22, Liquid sample introduction pipeline 21 comprise the numeral such as first floor sample introduction pipeline 211, second layer sample introduction pipeline 212, the 3rd layer of sample introduction pipeline 213(comprise at least 4-20); The liquid filter 22 of Liquid sample introduction system 20 comprises first floor sample introduction strainer 221, second layer sample introduction strainer 222, the 3rd layer of some strainer such as sample introduction strainer 223 (numeral the like, quantity can be 4-20); The Liquid sample introduction pipeline of different layers passes respectively corresponding packer and enters corresponding sampling horizon, and for example: second layer sample introduction pipeline 212 passes the first packer 11, the second packer 12, water sampling between the second packer 12 and the 3rd packer 13.The mode that first floor sample introduction pipeline 211, second layer sample introduction pipeline 212, the 3rd layer of sample introduction pipeline 213 connect respectively first floor sample introduction strainer 221, second layer sample introduction strainer 222, the 3rd layer of sample introduction strainer 223 can adopt the modes such as welding, cutting ferrule connection, screw joint, can carry out with reference to conventional method.
Automatically control the multiway valve that multiway valve 40 is circuit control, product is the standard industry product, such as: six-way valve, automatic eight leads to the valves such as valves automatically, and its Main Function is for controlling different sample introduction pipelines and docking with one way valve 54.Automatically the control cables of control multiway valve adopts the cable of oil, gas industrial.
Sampler 50 comprises the first pressure/flow control tube 51, the second probe tube 52, the 3rd relay 53; The 3rd relay 53, the four one way valves 54, the 5th valve 55, the 6th valve 56, the 7th counterbalance valve 57; The 3rd relay 53 can adopt content in this patent, also can adopt standardized product: the 3rd relay 53 among the present invention comprises the first relaying slide block 531, the second high-pressure bottle 532, the 3rd insulation layer 533, the 4th pressure/flow-control chamber 534, the 5th sampling room 535.
Temperature control system 60 comprises the first insulation layer 61, the second distributed temperature control elements 62, the 3rd internal temperature sensor 63; External pressure/flow control system, exterior protection form, its annexation is: packer system 10 comprises that the first packer 11, the second packer 12, the 3rd packer 13, the 4th packer 14, the first packers 11, the second packer 12, the 3rd packer 13, the 4th packer 14 adopt the multiple packer in oil, the Gas Industry to connect; Liquid sample introduction system 20 comprises Liquid sample introduction pipeline 21 and liquid filter 22, Liquid sample introduction pipeline 21 comprise the Liquid sample introduction pipeline comprise the numeral such as first floor sample introduction pipeline 211, second layer sample introduction pipeline 212, the 3rd layer of sample introduction pipeline 213(comprise at least 4-20); Liquid filter 22 comprises the numeral such as first floor sample introduction strainer 221, second layer sample introduction strainer 222, the 3rd layer of sample introduction strainer 223(), first floor sample introduction pipeline 211, second layer sample introduction pipeline 212, the 3rd layer of sample introduction pipeline 213 pass respectively the first packer 11, the second packer 12, the 3rd packer 13, more multi-layered sample introduction pipeline the like, every layer of terminal liquid filter 22 that connects correspondence of sample introduction pipeline; The Liquid sample introduction pipeline of different layers is worn respectively the sampling horizon that enters correspondence to the packer of correspondence, every layer of terminal first floor sample introduction strainer 221, second layer sample introduction strainer 222, the 3rd layer of sample introduction strainer 223 that connects correspondence of sample introduction pipeline.Gas sampling system 30 air inclusion sample introduction pipeline 31 and pneumatic filters 32, gas sampling pipeline 31 comprise the numeral such as first floor sample introduction pipeline 311, second layer sample introduction pipeline 312, the 3rd layer of sample introduction pipeline 313(comprise at least 4-20); Pneumatic filter 32 comprises the numeral such as first floor sample introduction strainer 321, second layer sample introduction strainer 322, the 3rd layer of sample introduction strainer 323(, for example: 4-20); First floor sample introduction pipeline 311, second layer sample introduction pipeline 312, the 3rd layer of sample introduction pipeline 313 are worn respectively to the first packer 11, the second packer 12 and the 3rd packer 13 bottoms, more multi-layered sample introduction pipeline the like, every layer of terminal first floor sample introduction strainer 321, second layer sample introduction strainer 322, the 3rd layer of Li Ajie such as sample introduction strainer 323 that connects correspondence of sample introduction pipeline, the gas sampling pipeline of different layers passes respectively corresponding packer and enters corresponding sampling horizon.Gas sampling system 30 is connected to form complete stratified fluid sample introduction part with all pipelines of Liquid sample introduction system 20 with automatic control multiway valve 40.
The second probe tube 52 links to each other with the 4th one way valve 54, the 5th valve 55, the first pressure/flow control tube 51 links to each other with the 6th valve 56, the 3rd relay 53 respectively, the 7th counterbalance valve 57 links to each other with the second probe tube 52, the 4th one way valve 54 respectively with the 3rd relay 53, automatically control multiway valve 40 and link to each other; Temperature control system 60 comprises the first insulation layer 61, the second distributed temperature control elements 62, the 3rd internal temperature sensor 63, the first pressure/flow control tube 51 passes the first insulation layer 61, the second distributed temperature control elements 62 links to each other with the first insulation layer 61, and the second probe tube 52 links to each other with the 3rd internal temperature sensor 63;
The 3rd relay 53 comprises the first relaying slide block 531, the second high-pressure bottle 532, the 3rd insulation layer 533, the 4th pressure/flow-control chamber 534, the 5th sampling room 535.The first relaying slide block 531, the second high-pressure bottle 532, the 4th pressure/flow-control chamber 534, the 5th sampling room 535 are arranged in the 3rd insulation layer 533, the first relaying slide block 531 links to each other with the second high-pressure bottle 532, the 4th pressure/flow-control chamber 534 respectively, the 4th pressure/flow-control chamber 534 links to each other with the first pressure/flow control tube 51, the first relaying slide block 531 links to each other with the second high-pressure bottle 532, the 5th sampling room 535 respectively, and the 5th sampling room 535 links to each other with the second probe tube 52.Whole device is put into drilling well or internal surface of sleeve pipe 70.
The end that gas carries out all pipelines that system 30 is connected with the Liquid sample introduction system all connects with automatic control multiway valve 40, and an other end passes respectively packer system 10 to corresponding layer position; For example: the 3rd layer of sample introduction pipeline 313 that gas carries out system 30 passes the first packer 11, the second packer 12, the 3rd packer 13, gets the gas sample between the 3rd packer 13 and the 4th packer 14; The second layer sample introduction pipeline 212 of Liquid sample introduction system 20 passes the first packer 11, the second packer 12, water sampling between the second packer 12 and the 3rd packer 13.The mode that the sample introduction pipeline passes packer can adopt the modes such as welding, jointing, can carry out with reference to general technology and method.
Select corresponding sample introduction pipeline by automatic control multiway valve 40, can realize sample introduction is carried out in different layers position and different fluid type, for example: automatically control the second layer sample introduction pipeline 312 that multiway valve 40 is selected gas sampling system 30, be communicated with one way valve 54 and pipeline 312, then the sample by one way valve 54 is the gaseous sample between second packer 12 and the 3rd packer 13.
Sampler 50 is connected with external pressure/flow control system and forms the gastight sampling part, realize the gastight sampling of underground fluid, realize the insulation sampling in conjunction with temperature control system 60, sampler 50, temperature control system 60 and external pressure/flow control system form the fidelity sampling part jointly like this.
Stratified fluid sample introduction part is connected on automatic control multiway valve 40 tops with the fidelity sampling part, thereby realizes the layering fidelity sampling.These component combinations form layering gas-liquid two-phase fluid high-fidelity sampling device in the well.
1, sampler
1-1) the overall structure of sampler
Sampler is made of jointly packer 10, Liquid sample introduction system 20, gas sampling system 30, automatic multiway valve 40, sampler 50, temperature control system 60 and external pressure/flow-control part, and wherein all parts adopt the industrial standard product;
1-2) preparation method
1. be the underground high-temperature and high-pressure conditions of reply and corrosivity condition, the materials such as 316/316L stainless steel, Hastelloy, two-sided alloy are adopted in all metal material suggestions; Encapsulant is to be generally good airproof performance, flexible material that resistance to corrosion is strong, for example: and polytetrafluoroethylene (PTFE), modification nitrile rubber, fluorubber, PEEK material, reduce corrosion and the performance loss of whole device in Underground Long-term uses.
2. the joint between installing, different system joint area adopt the ferrule fitting of standard or directly welding, and assurance device is in the reliability of Underground Long-term work.
3. pipeline adopts the standard ultralong steel tube, and welding is adopted in the pipeline junction, does not preferably have joint in drilling well.
4. the subsystems of device carries out with reference to following embodiment.
2, packer system 10
The characteristics of packer system 10 form the packer system for several packers, form the sampling environment of relative closure between the packer.Packer adopts the standardized product of oil sector, such as: the packer that Y241, Y341 etc. can connect more; Packer top arranges pipeline hole latter connection simultaneously, passes packer for gas-liquid sample feeding pipe road.The modes such as setting, the deblocking of packer are with traditional packer, and the type selecting of packer is with reference to the selection method of oil, Geological And Mineral Resources Departments In Their.
3, gas carries out system 30 and Liquid sample introduction system 20
Each layer position has corresponding gas sampling pipeline 31 and Liquid sample introduction pipeline 21, thereby forms the sampling to gas and the liquid of different layers position; At each sample introduction BOP liquid filter 22 and pneumatic filter 32 are set, prevent that large granular impurity or floccule from entering sealing effectiveness and working effect that sampling part reduces valve element.
4, automatically control multiway valve 40
Automatically control multiway valve 40 is the multiway valve of circuit control, adopt oil, natural gas, ore deposit industry standard product, such as: automatic high pressure six-way injection valve, high-voltage electromagnetic six-way valve etc., also can improve on the standardized product basis, improve reliability and the performance of its long-term work, arbitrary sample introduction pipeline docks with pipeline 52 its Main Function in different Liquid sample introduction pipe-line systems 21 and the gas sample feeding pipe road system 31 in order to control.Multiway valve is that movable part needs extra high reliability, and product is selected to pay particular attention to.If the pipeline of gas sampling pipeline 31 and Liquid sample introduction pipeline 21 is very many, under this multiway valve, can adopt plural multiway valve connection in series-parallel stack (reference standard method of operating), the more sample introduction pipeline of transferring realizes that more sample introduction pipelines are connected on the one way valve 54.Automatically control multiway valve 40 control cables adopt oil, natural gas, the standard cable used of the industries such as ore deposit.
5, sampler 50
5-1) structure
The structure of sampler 50 such as Fig. 3 have adopted pressure/flow-control pipeline 51, valve 56, relay 53, sampling line 52, valve 55, counterbalance valve 57 and one way valve 54.Valve 56 partly is connected with external pressure/flow-control, partly controls the work of relay by external pressure/flow-control, form in the relay 53 sample introduction with go out sample.One way valve 54 assurance sampling part can only be taken a sample, and can not form impact to the sampling stratum.
5-2) preparation method
1. be the underground high-temperature and high-pressure conditions of reply and corrosivity condition, the materials such as 316/316L stainless steel, two-sided alloy are adopted in all metal material suggestions; Encapsulant is the flexible material of the good airproof performances such as ordinary rubber, plastics, for example: and polytetrafluoroethylene (PTFE), polyethylene, rubber, silicon rubber, PEEK material, reduce the corrosion of whole device in Underground Long-term uses.
When 2. processing this device, the different system joint area adopts ferrule fitting or directly welding, and assurance device is in the reliability of Underground Long-term work.
6, relay 53(structure)
Relay can adopt standardized product, and its structure can adopt the structure such as Fig. 4, and relaying slide block 531 is divided into two chambers with high-pressure bottle 532, and one of them is that sampling room 535, another one are pressure/flow-control chamber 534.Be full of liquid or gas in pressure/flow-control chamber 534, realize pressure and the flow-control to sampling room 535 by connecting thereon external pressure/flow-control equipment.Relay outer wrap insulation layer 533 is with the control temperature simultaneously; Relay also can adopt the standard industry product to reach similar action and performance.
7, temperature control system
A, structure
B, processing method
Distributed temperature control elements 62 adopts distributed temperature control mode, the relative surface temperature of temperature on general stratum is higher, and main employing of temperature control heated, and heating element can adopt the heaters such as distributed resistance silk, water-bath pipeline, heater block is conventional element, and the market is on sale.If 62 refrigerations of distributed temperature control elements can adopt the temperature of the controlled pressure/flow-control pipelines 51 such as water-bath pipeline and sampling line 52 inner fluids.
Insulation layer 61 adopts the rubber of low heat conductivity or plastics to consist of.
Temperature pick up 63 is close to pressure/flow-control pipeline 51 and sampling line 52, preferably be coated with heat conductive silica gel or other soft contact materials between sensor 63 and pressure/flow-control pipeline 51 and the sampling line 52, the temperature of the perception of assurance temperature pick up is consistent with the fluid temperature (F.T.) in the pressure vessel, temperature pick up can adopt FBG grating sensing, Fibre Optical Sensor, resistance sensor etc., the recommendation fiber-optical grating temperature sensor, can without cable, raising number of sensors, improve temperature control precision.
Peripheral control unit carries out the temperature adjustment, control method reference standard Temp. control method according to temperature pick up 63 Data Control distributed temperature control elements 62.
The external temperature control assembly adopts standardized product, and for example: the Labview software control of temperature controller, NI and the logical operation+electrical heating of Texas Instrument or refrigerator provide heat energy or cold energy;
8, sampler valve control section
9, external pressure/flow-control part
10, the link such as pipeline, cable
11, exterior protection
If need protection insulation layer, the armor layer can be set, protection inner member and insulation layer outside whole device.Armor can adopt general polytetrafluoroethylene (PTFE), stainless steel material, composite material to make.Preparation method is with reference to the preparation method of general device topping.
Implement example:
The two-layer sampler of Tongliao, Inner Mongolia field by using has carried out sample analysis to underground water flow body, and it is all right to take a sample, the depth selection 250-220m of lower floor, and upper layer depth 160-120m, single sampling water sample 3.2L is under the about 70L(mark of the gas sample condition condition).Water sample step-down analysis behind sampler of taking out, by the fluid situation under the software generted address condition, sampling result is good.
Claims (3)
1. layering gas-liquid two-phase fluid high-fidelity sampling device in the well, it comprises: sampler be is characterized in that by packer system (10), Liquid sample introduction system (20), gas sampling system (30), automatic multiway valve (40), sampler (50), temperature control system (60): at drilling well inwall or internal surface of sleeve pipe (70) packer system (10), Liquid sample introduction system (20), gas sampling system (30), automatic multiway valve (40), sampler (50), temperature control system (60) are housed; Packer system (10) comprises the first packer (11), the second packer (12), the 3rd packer (13), the 4th packer (14); Liquid sample introduction system (20) comprises Liquid sample introduction pipeline (21) and liquid filter (22), and Liquid sample introduction pipeline (21) comprises liquid first floor sample introduction pipeline (211), liquid second layer sample introduction pipeline (212), the 3rd layer of sample introduction pipeline of liquid (213); Liquid first floor sample introduction pipeline (211), liquid second layer sample introduction pipeline (212), the 3rd layer of sample introduction pipeline of liquid (213) are worn respectively to the first packer (11), the second packer (12) and the 3rd packer (13) bottom, and its end connects respectively liquid first floor sample introduction strainer (221), liquid second layer sample introduction strainer (222) and the 3rd layer of sample introduction strainer of liquid (223); Gas sampling system (30) air inclusion sample introduction pipeline (31) and pneumatic filter (32), the gas first floor sample introduction pipeline (311) of gas sampling pipeline (31), gas second layer sample introduction pipeline (312), the 3rd layer of sample introduction pipeline of gas (313) are worn respectively to the first packer (11), the second packer (12) and the 3rd packer (13) bottom, and its end connects respectively gas first floor sample introduction strainer (321), gas second layer sample introduction strainer (322) and the 3rd layer of sample introduction strainer of gas (323); Pneumatic filter (32) comprises gas first floor sample introduction strainer (321), gas second layer sample introduction strainer (322), the 3rd layer of sample introduction strainer of gas (323); The second probe tube (52) links to each other with the 4th one way valve (54), the 5th valve (55), the first pressure/flow control tube (51) links to each other with the 6th valve (56), the 3rd relay (53) respectively, the 7th counterbalance valve (57) links to each other with the second probe tube (52), the 4th one way valve (54) by probe tube (52) respectively with the 3rd relay (53), automatically control multiway valve (40) and link to each other; Temperature control system (60) comprises the first insulation layer (61), the second distributed temperature control elements (62), the 3rd internal temperature sensor (63), the second distributed temperature control elements is close to probe tube (52) and the first pressure/flow control tube (51), the 3rd internal temperature sensor (63) is close to probe tube (52) and the first pressure/flow control tube (51), the first insulation layer (61) parcel the second distributed temperature control elements (62), the 3rd internal temperature sensor (63) and probe tube (52) and the first pressure/flow control tube (51).
2. by layering gas-liquid two-phase fluid high-fidelity sampling device in a kind of well claimed in claim 1, it is characterized in that: described sampler (50) has adopted the common composition of the first pressure/flow-control pipeline (51), valve (56), relay (53), sampling line (52), valve (55), counterbalance valve (57) and one way valve (54).
3. layering gas-liquid two-phase fluid high-fidelity sampling device in a kind of well according to claim 2, it is characterized in that: described relay (53) comprises the first relaying slide block (531), the second high-pressure bottle (532), the 3rd insulation layer (533), the 4th pressure/flow-control chamber (534), the 5th sampling room (535); The first relaying slide block (531) is positioned at the second high-pressure bottle inner (532), separating the second high-pressure bottle (532) is the 4th pressure/flow-control chamber (534) and the 5th sampling room (535) two parts, the 4th pressure/flow-control chamber (534) link to each other with the first pressure/flow control tube (51), the 5th sampling room (535) links to each other with the second probe tube (52), device outer wrap the 3rd insulation layer (533) after connecting.
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| US9057252B2 (en) * | 2011-11-22 | 2015-06-16 | Vetco Gray Inc. | Product sampling system within subsea tree |
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| CN103437762B (en) * | 2013-09-09 | 2016-08-10 | 中国科学院武汉岩土力学研究所 | Layering gas-liquid fluid sampler in a kind of shallow-layer well |
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