CN202562823U - Compressible fluid high-temperature high-pressure density test system - Google Patents

Compressible fluid high-temperature high-pressure density test system Download PDF

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Publication number
CN202562823U
CN202562823U CN2012201841975U CN201220184197U CN202562823U CN 202562823 U CN202562823 U CN 202562823U CN 2012201841975 U CN2012201841975 U CN 2012201841975U CN 201220184197 U CN201220184197 U CN 201220184197U CN 202562823 U CN202562823 U CN 202562823U
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China
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kettle
pressure
temperature
kettle cover
piston
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CN2012201841975U
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Chinese (zh)
Inventor
赵素丽
石秉忠
林永学
陈铖
常连玉
刘金华
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中国石油化工股份有限公司
中国石油化工股份有限公司石油工程技术研究院
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Priority to CN2012201841975U priority Critical patent/CN202562823U/en
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Publication of CN202562823U publication Critical patent/CN202562823U/en

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Abstract

The utility model provides a compressible fluid high-temperature high-pressure density test system, belonging to the field of density test units for experimentation. The compressible fluid high-temperature high-pressure density test system comprises a shell, a density detection unit, a temperature unit, a pressure unit and a computer (106), wherein the shell is fixed on an equipment frame; the density detection unit, temperature unit and pressure unit are fixed in the shell; the computer (106) is positioned outside the shell; the density detection unit comprises a high-temperature high-pressure kettle (110) and a displacement sensor (103); the high-temperature high-pressure kettle (110) is connected with the displacement sensor (103); the temperature unit comprises a heater and cooler (109) and a temperature sensor; the heater and cooler (109) and the temperature sensor are installed on the high-temperature high-pressure kettle (110); the computer (106) controls the heater and cooler (109); the pressure unit comprises a high-pressure precision pressure source (113), a pipeline and a pressure sensor (104); and the pressure sensor (104) is connected with the high-temperature high-pressure kettle (110).

Description

A kind of compressible fluid HTHP density measurement system
Technical field
The utility model belongs to experiment with density measurement device field, is specifically related to a kind of compressible fluid HTHP density measurement system.
Background technology
Drilling fluid density mainly utilizes lever principle to claim to measure through proportion at present; The i.e. quantitative drilling fluid sample of filling in the sample cup of lever one end; The other end setting counterweight that moves about; When lever balance, the scale from the lever is directly read the density value of drilling fluid, and this lever density is claimed to test drilling fluid density and measured at normal temperatures and pressures.But for compressible low density drilling fluid; Adopt the method to exist some problems; For example; The low density drilling fluid of foam and interpolation light-weight additive under high pressure has compressibility and at high temperature has swelling property, and proportion claims it is under normal temperature and pressure conditions, to use, and therefore can not reflect the real density of fluid under high-temperature and high-pressure conditions.
HuaBei Petroleum Administrative Bureau has applied for patent " foam drilling fluid density tester " in 2005; It is mainly used in and detects the instrumentation of foam drilling fluid in simulation downhole temperature, pressure condition lower density converted quantity and rule of conversion; The principle of work of this equipment is that load weighted foam solution is poured in the sample cup; Load onto piston, piston is just contacted with the foam solution top.When warming and pressurizing, foam volume changes, because the sample cup internal diameter is a fixed value, therefore can move up and down the sign foam volume through piston.Displacement transducer 103 is housed on the piston,, calculates fluid density in the sample cup through the data that sensor arrives.But this equipment simulated pressure scope 0-10MPa, the variable density of aerated fluid under temperature range 0-180 ℃ of condition.But there are three problems in it for low density drilling fluid: the exploitation dynamics that (1) is prone to depleted hydrocarbon zone along with low pressure and low permeability reaches increases, pressure 0-10MPa, and temperature 0-180 ℃ scope can not meet the demands far away; (2) this equipment sample cup is movable, during application of sample sample cup is taken off, and has added sample, is fixed on the fixed mount after the stubborn good capping again, and sample cup is a stainless steel, and the whole sample cup is heavier, takes off and put into all inconvenient; (3) sample cup does not have cooling device, needs nature cooling or sample cup taken out to be placed in the pond to lower the temperature, and cooling rate is slow, and the sample cup of heat unloads taking-up from fixed mount in addition also has certain danger; (4) pressure of device measuring is the piston upward pressure, because the influence of the frictional resistance of piston, kettle internal pressure and gaging pressure have certain difference; (5) sample cup and pipeline are exposed, if pressure leakages takes place, are unfavorable for safety.
Along with the exploitation of low pressure and low permeability stratum puts more effort and the technological development of underbalance, the research of low density drilling fluid will get more and more.But because the hypopycnal flow volume density is variable, present evaluation method can not reflect the density feature under the low density flow high-temperature and high-pressure conditions.Therefore develop relevant compressible flow volume density valuator device and set up new experimental evaluation method, promote that the low density drilling fluid technical development is necessary.
The utility model content
The purpose of the utility model is to solve a difficult problem that exists in the above-mentioned prior art; A kind of compressible fluid HTHP density measurement system is provided, and its pressure limit is at 0-60MPa, and temperature range is at 0-180 ℃; Be used to estimate the variable density under high-temperature and high-pressure conditions such as low density drilling fluid of oil base drilling fluid, foam drilling fluid, interpolation light-weight additive; It is simple to operate, and is easy to use, and security is good.
The utility model is realized through following technical scheme:
A kind of compressible fluid HTHP density measurement system comprises the shell that is fixed on the device framework and device for detecting density, temperature device and the pressure apparatus installed in the enclosure, and is positioned at the outer computing machine 106 of shell;
Said device for detecting density comprises high temperature and high pressure kettle 110 and displacement transducer 103; High temperature and high pressure kettle 110 is connected with displacement transducer 103;
Said temperature device comprises well heater and refrigeratory 109 and temperature sensor; Well heater and refrigeratory 109 are installed on the high temperature and high pressure kettle 110 with temperature sensor, and 106 pairs of well heaters of computing machine and refrigeratory 109 are controlled;
Said pressure apparatus comprises high voltage precision pressure source 113, pipeline and pressure transducer 104, and said pressure transducer 104 is connected with high temperature and high pressure kettle 110, and the data transmission of pressure transducer 104 is given computing machine 106.
Said high temperature and high pressure kettle 110 comprises kettle 7, and said kettle 7 is fixed, is equal tubular structure of opening up and down; On the top of said kettle 7 kettle cover 1 is installed, the bottom is equipped with down kettle cover 11, last kettle cover 1 and the inner chamber sealing of following kettle cover 11 with kettle 7;
Between last kettle cover 1 and following kettle cover 11, be provided with piston 6, sealing pressure medium water is housed between piston 6 and the last kettle cover 1, give pressurized with fluid through water, between piston 6 and the following kettle cover 11 fluid to be measured is housed, piston can be moved according to last downforce variation;
Have axial central through hole on the kettle cover 1 on said, joint 4 is installed on the top of this central through hole; Have transverse holes on the kettle cover 1 on said, be used to connect pressure apparatus.
On the said piston 6 piston rod 5 is installed; Said piston rod 5 passes the said interior joint 4 of central through hole of going up kettle cover 1 and picks out outside the kettle 7; Said joint 4 is used for packed-piston bar 5 and last kettle cover 1.
Said kettle cover 1, piston 6, piston rod 5, following kettle cover 11 and kettle 7 coaxial cables gone up are installed;
Upper and lower kettle cover all is fixed on the kettle 7 through screw thread.
Said piston rod 5 is a tubular structure, and there is axial through hole at its center, and the benchmark of the displacement transducer 103 of level is installed on the port on said piston rod 5 tops, and said displacement transducer 103 is positioned on the plane of benchmark of said displacement transducer 103; The distance that benchmaring piston through said displacement transducer 103 moves; The other end of the benchmark of said displacement transducer 103 links to each other with said pressure transducer 104;
Have axial central through hole on the said piston 6, insert in this central through hole the lower end of said piston rod 5, and be fixed on the piston 6 through the nut 17 that is positioned at piston 6 upper surfaces; On the lower end outside surface of said piston rod 5 back-up ring is housed, is used for the sealing between piston rod 5 and the piston 6;
The outside surface of said piston 6 is provided with two O type circles, is used for the sealing between piston 6 and kettle 7 inwalls;
Two O-ring seals are housed between said joint 4 and the last kettle cover 1, are used for the sealing between joint 4 and last kettle cover 1 and the piston rod 5;
On the lower external face of kettle cover 1 back-up ring is housed on said, is used for the sealing between kettle cover 1 and kettle 7 inwalls.
Side in the wall bottom of said kettle 7 has cross through hole; This cross through hole is positioned at the top of kettle cover 11 down; Said temperature sensor is installed in this cross through hole; Said temperature sensor is through screw and kettle 7 sealing and fixing, and it passes across the wall of kettle 7, and the other end is connected with said computing machine 106.Temperature sensor is fixed.
On said down kettle cover 11, have axial central through hole, in this central through hole, be equipped with and have the obstruction 12 of filling in core 13; Stop up 12 and is connected with following kettle cover 11, when its objective is under not opening kettle cover 11, also can discharge slurry, be particularly useful for the smaller operating personnel of strength through extraction obstruction 12 through screw thread;
The end end face that said plug core 13 is arranged in kettle 7 inner chambers is positioned at same plane with the inner face that following kettle cover 11 is arranged in kettle 7 inner chambers, on this end outside surface of plug core 13, back-up ring and O type circle is housed, and is used to fill in the sealing between core 13 and the following kettle cover 11; The other end of said plug core 13 is and stops up 12, and said obstruction 12 is connected with following kettle cover 11 through screw thread and seals.Can unscrew or tighten and stop up 12 through spanner;
Said kettle cover 11 down is equipped with sealing gasket 14, the sealing under being used between kettle cover 11 and kettle 7 inwalls with the inwall contact position of kettle 7;
Be provided with two threaded holes in the lower end of said kettle 7, be used for kettle 7 is fixed on apparatus frame; Said being positioned on the outer face outside kettle 7 inner chambers of kettle cover 11 down still handle 10 is installed.
Said well heater and refrigeratory 109 are wrapped on the outside surface of said kettle 7; Said well heater and refrigeratory 109 comprise well heater and refrigeratory; Said well heater is an electric heating tube, its in the shape of a spiral shape be wrapped on the outside surface of said kettle 7, be used to control the kettle temperature; Said refrigeratory is a water pipeline, its in the shape of a spiral shape be wrapped on the outside surface of said kettle 7, be kettle 7 cooling through condensate water.
Said computing machine 106 is accomplished control, data acquisition, storage and query function.Be connected with display 105 on the computing machine 106; Also be connected with data acquisition communication module 107 and heat and temperature control modules 108; Said heat and temperature control modules 108 is used for well heater and refrigeratory 109 are controlled; The data transmission of temperature sensor is heated and temperature control modules 108, is transferred to computing machine 106 through data acquisition communication module 107 again; The data transmission of pressure transducer 104 and displacement transducer 103 is given data acquisition communication module 107, is transferred to computing machine 106 by data acquisition communication module 107 again;
The outside of said shell is connected to panel, is convenient to operation and parameter setting.
Compared with prior art, the beneficial effect of the utility model is:
(1) the utility model can the simulated formation pressure limit be 0~60MPa; Temperature range is: room temperature~180 ℃, can satisfy the requirement of experiment of 5000m with interior low pressure and low permeability stratum;
(2) kettle of the utility model and pressure source are integrated in the housing; Control panel through housing carries out associative operation, and in addition, all pipelines, oil circuit etc. all are enclosed in the housing; The valve of handling on the housing during use can be accomplished related experiment, and is simple to operate;
(3) kettle of the utility model is fixing immotile, and covers can be opened, and it easy to usely need not use very great strength on the one hand, has avoided kettle owing to often taking off the distortion that causes on the other hand yet;
(4) kettle of the utility model parcel twice pipeline, the one tunnel is electric heating tube, is used to control the kettle temperature; One the tunnel is water pipeline, can be the kettle cooling through condensate water.
Description of drawings
Fig. 1 is the utility model compressible fluid HTHP density measurement systemic effect schematic diagram.Wherein, the 101st, big tensimeter, the 102nd, metering valve, the 103rd, displacement transducer; The 104th, pressure transducer, the 105th, display, the 106th, computing machine, the 107th, data acquisition communication module; The 108th, heat and temperature control modules, the 109th, well heater and refrigeratory, the 110th, high temperature and high pressure kettle 110,111st, two-position three way magnetic valve; The 112nd, electric controller, the 113rd, high voltage precision pressure source, the 114th, pressure regulator valve, the 115th, little tensimeter.
Fig. 2 is the structural representation of the high temperature and high pressure kettle 110 in the utility model compressible fluid HTHP density measurement system.Wherein, the 1st, last kettle cover, the 2nd, O-ring seal A, the 3rd, O-ring seal B, the 4th, joint, the 5th, piston rod; The 6th, piston, the 7th, kettle, the 8th, O type circle, the 9th, O type circle, the 10th, still handle; The 11st, following kettle cover, the 12nd, stop up, the 13rd, plug core, the 14th, sealing gasket, the 15th, back-up ring; The 16th, O type circle, the 17th, nut, the 18th, back-up ring, the 19th, back-up ring, the 20th, split pin.
Fig. 3 is water route, kettle 7 outside, the heating pipe line synoptic diagram of the high temperature and high pressure kettle 110 in the utility model compressible fluid HTHP density measurement system.
Fig. 4 is the scheme of installation of the utility model compressible fluid HTHP density measurement system.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail:
Shown in Fig. 1 compressible fluid density measurement system works schematic diagram; The utility model is to be used to measure density of liquid under the high-temperature and high-pressure conditions; Utilize the principle of ρ=m/v, liquid is packed in the container of a fixed diameter, envelope has piston salable and moving up and down above.When the temperature, pressure in the container changes, the phenomenon that liquid also volumetric expansion can occur or dwindle, thus promote descent of piston or up.Detect the distance that piston moves through displacement transducer 103, converse liquid in the high-temperature and high-pressure conditions lower volume, thereby calculate density of liquid.
Said compressible fluid HTHP density measurement system comprises shell, temperature detection and control device, pressure apparatus, device for detecting density and computing machine 106; Computing machine 106 is accomplished data acquisition, storage and query function, and data are controlled and collected to 106 pairs of temperature devices of computing machine; Pressure apparatus, device for detecting density, system shell all are mounted in (as shown in Figure 4 on the apparatus frame.);
Said shell makes equipment integral seem very compact, and high pressure line all in the enclosure, guarantees safety.Housing exterior has panel, is convenient to operation and parameter setting.
Said device for detecting density comprises high temperature and high pressure kettle 110 and displacement transducer 103; High temperature and high pressure kettle 110 is connected with displacement transducer 103, and the data transmission of displacement transducer 103 is given computing machine 106;
Said pressure apparatus comprises high voltage precision pressure source 113 and pipeline and pressure transducer 104; Said high voltage precision pressure source 113 inserts in the kettle 7 of high temperature and high pressure kettle 110 through pipeline; Specifically; Be connected to inlet pipeline and water return pipeline on the high voltage precision pressure source 113; On high voltage precision pressure source 113 and pipeline that kettle 7 is connected, big tensimeter 101 and metering valve 102 are installed, source of the gas inserts high voltage precision pressure source 113 through pipeline, on this pipeline, is connected with pressure regulator valve 114, two three-way electromagnetic valves 111, little tensimeter 115 and electric controllers 112 in turn.
Said pressure transducer 104 is connected with high temperature and high pressure kettle 110, and the data transmission of pressure transducer 104 is given computing machine 106.
Said temperature device comprises well heater, refrigeratory and temperature sensor; Well heater and refrigeratory and temperature sensor all are connected on the high temperature and high pressure kettle 110, and the data transmission of temperature sensor is given computing machine 106.
The structure of said high temperature and high pressure kettle 110 is as shown in Figure 2, comprises kettle 7, and said kettle 7 is fixed, is equal tubular structure of opening up and down; On the top of said kettle 7 kettle cover 1 is installed, the bottom is equipped with down kettle cover 11, and last kettle cover 1 can be with the inner chamber sealing of kettle 7 with following kettle cover 11, and upper and lower kettle cover all is fixed on the kettle 7 through screw thread; Said kettle cover 1, following kettle cover 11 and kettle 7 coaxial cables gone up are installed.Because bearing capacity requires high, kettle is very thick, very heavy, so the kettle 7 of the utility model fixes, and opening is arranged below it, can emit tracer liquid.Like this, one side is easy to operate need not use very great strength, has avoided kettle owing to often taking off the distortion that causes on the other hand yet.
Piston 6 is installed in the inner chamber of said kettle 7, and it is positioned at the top of kettle cover 11 down; On the said piston 6 piston rod 5 is installed; Have central through hole on the kettle cover 1 on said, joint 4 is installed, be used for packed-piston bar and last kettle cover on the top of this central through hole.
Said piston rod 5 is a tubular structure, and there is axial through hole at its center, and the through hole through piston can get into piston rod.Piston rod 5 is not solid, but a through hole is arranged, can exhaust through this through hole, and piston and drilling fluid liquid level contacts when guaranteeing experiment.Displacement transducer 103 benchmark of level are installed on piston rod 5 port; The other end cut-in pressure sensor 104 of said displacement transducer 103 benchmark; Displacement transducer 103 is positioned on displacement transducer 103 benchmark, detects the displacement of piston through displacement transducer 103 benchmark.Because the interior liquid of fluid pressure and piston rod is communicated with in the kettle, fluid pressure is kettle pressure in the piston rod of therefore measuring, and makes that the pressure of measurement is more accurate.
Have axial central through hole on the said piston 6, insert in this central through hole the lower end of said piston rod 5, and be fixed on the piston 6 through the nut 17 that is positioned at piston 6 upper surfaces; On the lower end outside surface of said piston rod 5 back-up ring 19 is housed, is used for the sealing between piston rod 5 and the piston 6.
The outside surface of said piston 6 is provided with O type circle 8 and O type circle 9, is used for the sealing between piston 6 and kettle 7 inwalls.
O-ring seal A2 and O-ring seal B3 are housed between said joint 4 and the last kettle cover 1, are used for the sealing between joint 4 and last kettle cover 1 and the piston rod;
On the lower external face of kettle cover 1 back-up ring 18 is housed on said, is used for the sealing between kettle cover 1 and kettle 7 inwalls.
Bottom at the wall of said kettle 7 has cross through hole, and this cross through hole is positioned at the top of kettle cover 11 down, the inside laying temperature sensor, temperature sensor seal through joint and kettle 7 and with data transfer to computing machine 106.
On said down kettle cover 11, have axial central through hole, in this central through hole, be equipped with and have the obstruction 12 of filling in core 13;
The end end face that said plug core 13 is arranged in kettle 7 inner chambers is positioned at same plane with the inner face that following kettle cover 11 is arranged in kettle 7 inner chambers, and back-up ring 15 and O type circle 16 are housed on this end outside surface of plug core 13, is used to fill in the sealing between core 13 and the following kettle cover 11; The other end of said plug core 13 is and stops up 12.Split pin 20 among Fig. 2 does not have other effects just in order to get obstruction down mutually easily.
Said kettle cover 11 down is equipped with sealing gasket 14 with the inwall contact position of kettle 7.
The kettle lower end is provided with two threaded holes and is used for kettle 7 is fixed on apparatus frame.
Said being positioned at of kettle cover 11 down still handle 10 is installed on the outer face outside kettle 7 inner chambers, when needing repairing, can utilizes helve will descend kettle cover to open.
As shown in Figure 3, be enclosed with spiral helicine twice pipeline at the outside surface of said kettle 7, the one tunnel is electric heating tube, is used to control the temperature of kettle 7; One the tunnel is water pipeline, can be the kettle cooling through condensate water.
High temperature and high pressure kettle 110 is cores of the utility model test macro, and piston 6 contact with the fluid to be measured liquid level between kettle cover up and down, seals fluid to be measured between piston 6 and the following kettle cover 11, seals pressure medium water between piston 6 and the last kettle cover 1.When tracer liquid changed at temperature, pressure, volume can change, because the internal diameter of kettle 7 is immutable; When therefore the tracer liquid volume changed, piston 6 will move up and down, and is connected with piston rod 5 on the piston 5; Be connected with displacement transducer 103 benchmark on the piston rod 5; Displacement transducer 103 is positioned on displacement transducer 103 benchmark, when piston 6 displacements change, will drive piston rod 5 and displacement transducer 103 basis displacement change; Promptly know the displacement of piston 6 through the displacement of detecting position displacement sensor 103 benchmark, thereby can calculate the volume change of liquid in the kettle.
The principle of work of the utility model does; (be exactly to put, do not need external air compressor machine equal pressure source through built-in in the housing the inside.) precision pressure source pressurization, after pressure got into high temperature and high pressure kettle 110 bodies, piston moved down under pressure, thus compressed fluid, through the displacement that displacement transducer 103 is measured, the situation of change of volume calculated and density.Can also change pressure through temperature constant in addition, or constant pressure changes temperature, the situation of change of volume calculated and density.
The concrete use step of the utility model is following: twist down earlier kettle cover 11 during use and pour measured liquid into kettle 7 then with obstruction 12; The piston 6 that will have piston rod 5 is then packed into; Unscrew the joint of going up above the kettle cover 14, make the through hole of kettle cover 1 pass piston rod 5 and be encased in kettle 7.Slowly put into piston 6 downwards through rotary-piston bar 5; Until explanation piston 6 has touched liquid level when having slurry to overflow in the piston rod 5; Stop piston 6 and transfer, tighten the joint 4 on the kettle cover 1, measured like this liquid is closed in the inner chamber of kettle 7; Displacement transducer 103 benchmark of level are received on the port on piston rod 5 tops; Its effect is the distance that moves for metering piston; Displacement transducer 103 just is positioned on the plane of said benchmark; The other end cut-in pressure sensor 104 of displacement transducer 103 benchmark, displacement transducer 103 all is transferred on the computer through data line with pressure transducer 104.Access device program, input initial mass and density configure temperature, begin experiment, carry out pressure control through the valve on the panel.
During pressurization; Go into to go up hydraulic pressure between kettle cover and the piston through pressure source; Put on fluid through piston, when fluid volume changed, corresponding moving will take place in piston; Thereby drive piston rod and on displacement transducer 103 benchmark be moved, the distance that detected displacement transducer 103 benchmark move is exactly the distance that piston moves.
Experiment finishes back bolt down procedure, release, logical cooling water temperature, after temperature drops to room temperature, opens below the kettle 7 valve (refer to open and stop up 12, still directly opening down kettle cover 11 also can emit lower flow) and emits fluid; Liquid is taken away displacement transducer 103 after putting totally fully, unloads lower pressure sensor 104, displacement transducer 103 benchmark successively; Unscrew joint 4, back out kettle cover and take out kettle; Extract piston, kettle is cleaned up, finish experiment.
The compressible fluid density measurement system of the utility model mainly is used in the fluid that uniform temperature, pressure condition lower density change, and comprises the low density drilling fluid that adds light-weight additive, oil base drilling fluid, aerated fluid etc.This equipment mainly is used for estimating the compressibility of low density flow in a word.
Through oil-gas exploration and development in decades, maturing field all gets into the exploitation middle and later periods successively, and exploratory development begins to shift to the relatively poor block of exploration conditions such as low pressure and low permeability.Problems such as the exploitation of low pressure or depleted hydrocarbon zone, protection hydrocarbon zone are anxious to be solved; Along with the large-scale application of under-balanced drilling technology during worldwide the technology of small field, fault-blcok oil-gas field, oil sheet, the low production capacity oil field of low pressure and low permeability and maturing field is taped the latent power in the complicacy, become another direction that develops on a large scale continue horizontal well technology after in addition.The low density drilling fluid technology also develops rapidly thereupon under these circumstances; Become one of core technology of low-pressure drilling and under-balanced drilling; Low density drilling fluid prevent low-pressure stratum leakage, protection hydrocarbon zone, to improve aspect the ROP effect obvious, in the efficient exploitation of oil gas field, bringing into play more and more important effect.Therefore the research to low density drilling fluid will get more and more, and is more and more deep.In the low density drilling fluid research process; Density is the index of most critical; The research low density drilling fluid must have the instrument of measurable flow body compressibility index, so stable performance, compressible fluid density measurement system easy to use also will face vast market prospect.
Technique scheme is a kind of embodiment of the utility model; For those skilled in the art; The utility model discloses on the basis of principle, be easy to make various types of improvement or distortion, and be not limited only to the described structure of the above-mentioned specific embodiment of the utility model; What therefore the front was described is just preferred, and does not have restrictive meaning.

Claims (10)

1. compressible fluid HTHP density measurement system; It is characterized in that: said compressible fluid HTHP density measurement system comprises the shell that is fixed on the device framework and device for detecting density, temperature device and the pressure apparatus installed in the enclosure, and is positioned at the outer computing machine (106) of shell;
Said device for detecting density comprises high temperature and high pressure kettle (110) and displacement transducer (103); High temperature and high pressure kettle (110) is connected with displacement transducer (103);
Said temperature device comprises well heater and refrigeratory (109) and temperature sensor; Well heater and refrigeratory (109) and temperature sensor are installed on the high temperature and high pressure kettle (110), and computing machine (106) is controlled well heater and refrigeratory (109);
Said pressure apparatus comprises high voltage precision pressure source (113), pipeline and pressure transducer (104), and said pressure transducer (104) is connected with high temperature and high pressure kettle (110).
2. compressible fluid HTHP density measurement according to claim 1 system, it is characterized in that: said high temperature and high pressure kettle (110) comprises kettle (7), said kettle (7) is fixed, is equal tubular structure of opening up and down; On the top of said kettle (7) kettle cover (1) is installed, the bottom is equipped with down kettle cover (11), and last kettle cover (1) and following kettle cover (11) are with the inner chamber sealing of kettle (7);
Between last kettle cover (1) and following kettle cover (11), be provided with piston (6), sealing pressure medium water is housed between piston (6) and the last kettle cover (1), between piston (6) and the following kettle cover (11) fluid to be measured is housed;
Have axial central through hole on the kettle cover (1) on said, joint (4) is installed on the top of this central through hole; Have transverse holes on the kettle cover (1) on said.
3. compressible fluid HTHP density measurement according to claim 2 system is characterized in that: piston rod (5) is installed on the said piston (6); Said piston rod (5) passes the said interior joint (4) of central through hole of going up kettle cover (1) and picks out outside the kettle (7).
4. compressible fluid HTHP density measurement according to claim 3 system is characterized in that: said kettle cover (1), piston (6), piston rod (5), the kettle cover (11) and the installation of kettle (7) coaxial cable down gone up; Said upward kettle cover (1) and following kettle cover (11) all are fixed on the kettle (7) through screw thread.
5. compressible fluid HTHP density measurement according to claim 3 system; It is characterized in that: said piston rod (5) is a tubular structure; There is axial through hole at its center; The benchmark of the displacement transducer (103) of level is installed on the port on said piston rod (5) top, and said displacement transducer (103) is positioned on the plane of benchmark of said displacement transducer (103); The end in addition of the benchmark of said displacement transducer (103) links to each other with said pressure transducer (104).
6. compressible fluid HTHP density measurement according to claim 5 system; It is characterized in that: said piston has axial central through hole on (6); Insert in this central through hole the lower end of said piston rod (5), and be fixed on the piston (6) through the nut (17) that is positioned at piston (6) upper surface; On the lower end outside surface of said piston rod (5) back-up ring is housed;
The outside surface of said piston (6) is provided with two O type circles;
Between said joint (4) and the last kettle cover (1) two O-ring seals are housed;
On the lower external face of kettle cover (1) back-up ring is housed on said.
7. compressible fluid HTHP density measurement according to claim 6 system; It is characterized in that: the side in the wall bottom of said kettle (7) has cross through hole; This cross through hole is positioned at the top of kettle cover (11) down; Said temperature sensor is installed in this cross through hole, and said temperature sensor is through screw and kettle (7) sealing and fixing, and it passes across the wall of kettle (7).
8. compressible fluid HTHP density measurement according to claim 7 system is characterized in that: have axial central through hole on the kettle cover (11) down said, the obstruction (12) that has plug core (13) is housed in this central through hole; Stopping up (12) is connected with following kettle cover (11) through screw thread;
The end end face that said plug core (13) is arranged in kettle (7) inner chamber is positioned at same plane with the inner face that following kettle cover (11) is arranged in kettle (7) inner chamber, on this end outside surface of plug core (13), back-up ring and O type circle is housed; The other end of said plug core (13) is obstruction (12), and said obstruction (12) is connected with following kettle cover (11) through screw thread and seals;
Said kettle cover (11) down is equipped with sealing gasket (14) with the inwall contact position of kettle (7);
Be provided with two threaded holes in the lower end of said kettle (7); Said being positioned on the outer face outside kettle (7) inner chamber of kettle cover (11) down still handle (10) is installed.
9. compressible fluid HTHP density measurement according to claim 1 system; It is characterized in that: said well heater and refrigeratory (109) comprise well heater and refrigeratory; Said well heater is an electric heating tube, its in the shape of a spiral shape be wrapped on the outside surface of said kettle (7); Said refrigeratory is a water pipeline, its in the shape of a spiral shape be wrapped on the outside surface of said kettle (7).
10. compressible fluid HTHP density measurement according to claim 1 system; It is characterized in that: be connected with display (105) on the said computing machine (106); Also be connected with data acquisition communication module (107) and heat and temperature control modules (108); Said heat and temperature control modules (108) is used for well heater and refrigeratory (109) are controlled; The data transmission of temperature sensor is heated and temperature control modules (108), passes through data acquisition communication module (107) again and is transferred to computing machine (106); The data transmission of pressure transducer (104) and displacement transducer (103) is given data acquisition communication module (107), is transferred to computing machine (106) by data acquisition communication module (107) again;
The outside of said shell is connected to panel.
CN2012201841975U 2012-04-25 2012-04-25 Compressible fluid high-temperature high-pressure density test system CN202562823U (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103278380A (en) * 2013-04-26 2013-09-04 宝鸡石油钢管有限责任公司 High-temperature external pressure device for petroleum tubular good full-scale evaluation
CN103821509A (en) * 2014-02-26 2014-05-28 南通市飞宇石油科技开发有限公司 Plunger sealing mechanism of high-temperature and high-pressure formation fluid analysis meter
CN104515717A (en) * 2013-09-27 2015-04-15 中国石油化工集团公司 Drilling fluid settleability testing device
CN104977226A (en) * 2014-04-11 2015-10-14 中国石油化工股份有限公司 Rock density measurement and rock density measurement device
CN105571984A (en) * 2016-01-14 2016-05-11 郑州轻工业学院 High-temperature and high-pressure liquid density measuring device and method
CN106404060A (en) * 2016-08-31 2017-02-15 贵州永红航空机械有限责任公司 Fluid temperature and pressure universal test device and test method
CN109613113A (en) * 2018-04-08 2019-04-12 江苏联友科研仪器有限公司 A kind of high-temperature, high pressure fluid test kettle
CN109613113B (en) * 2018-04-08 2021-04-27 江苏联友科研仪器有限公司 High-temperature high-pressure fluid test kettle

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103278380A (en) * 2013-04-26 2013-09-04 宝鸡石油钢管有限责任公司 High-temperature external pressure device for petroleum tubular good full-scale evaluation
CN103278380B (en) * 2013-04-26 2015-10-28 宝鸡石油钢管有限责任公司 A kind of External Pressure at High Temperature device for the full-scale evaluation of oil country tubular goods
CN104515717A (en) * 2013-09-27 2015-04-15 中国石油化工集团公司 Drilling fluid settleability testing device
CN103821509A (en) * 2014-02-26 2014-05-28 南通市飞宇石油科技开发有限公司 Plunger sealing mechanism of high-temperature and high-pressure formation fluid analysis meter
CN104977226A (en) * 2014-04-11 2015-10-14 中国石油化工股份有限公司 Rock density measurement and rock density measurement device
CN105571984A (en) * 2016-01-14 2016-05-11 郑州轻工业学院 High-temperature and high-pressure liquid density measuring device and method
CN105571984B (en) * 2016-01-14 2018-02-27 郑州轻工业学院 A kind of high temperature high pressure liquid density measuring equipment and measuring method
CN106404060A (en) * 2016-08-31 2017-02-15 贵州永红航空机械有限责任公司 Fluid temperature and pressure universal test device and test method
CN106404060B (en) * 2016-08-31 2019-01-15 贵州永红航空机械有限责任公司 A kind of universal test device of fluid temperature (F.T.) and pressure
CN109613113A (en) * 2018-04-08 2019-04-12 江苏联友科研仪器有限公司 A kind of high-temperature, high pressure fluid test kettle
CN109613113B (en) * 2018-04-08 2021-04-27 江苏联友科研仪器有限公司 High-temperature high-pressure fluid test kettle

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