CN110823712B - High-temperature high-pressure maintenance and strength and elastic modulus comprehensive tester - Google Patents
High-temperature high-pressure maintenance and strength and elastic modulus comprehensive tester Download PDFInfo
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- CN110823712B CN110823712B CN201911205858.0A CN201911205858A CN110823712B CN 110823712 B CN110823712 B CN 110823712B CN 201911205858 A CN201911205858 A CN 201911205858A CN 110823712 B CN110823712 B CN 110823712B
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- 238000012423 maintenance Methods 0.000 title claims abstract description 22
- 239000004568 cement Substances 0.000 claims abstract description 36
- 238000006073 displacement reaction Methods 0.000 claims abstract description 31
- 238000003825 pressing Methods 0.000 claims abstract description 22
- 238000012360 testing method Methods 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims description 56
- 238000003466 welding Methods 0.000 claims description 20
- 239000000523 sample Substances 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000004992 fission Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 239000004575 stone Substances 0.000 abstract description 13
- 239000003129 oil well Substances 0.000 abstract description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 38
- 238000010586 diagram Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- DBUTVDSHVUGWOZ-UHFFFAOYSA-N [Si].[Ni].[Cr].[Ni] Chemical compound [Si].[Ni].[Cr].[Ni] DBUTVDSHVUGWOZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/068—Special adaptations of indicating or recording means with optical indicating or recording means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0076—Hardness, compressibility or resistance to crushing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a high-temperature high-pressure maintenance and strength and elastic modulus comprehensive tester which comprises a frame component, at least one kettle body assembly, a displacement sensor component, an oil cylinder assembly ball head component, a laser sensor component, a hydraulic system, a driving system and a display panel. The invention relates to a comprehensive testing machine combining a high-temperature high-pressure oxygen protecting kettle and a pressing machine, which can be used for curing cement paste blocks under high-temperature high-pressure environment and testing the compressive strength, the elastic modulus and the poisson ratio of the cement paste blocks. The displacement sensor and the laser sensor can accurately collect the changed data of the cement stone, the error is 1um, and the precision is high. Compact structure, small volume, cost saving, simple and easy operation and easy understanding. Has strong adaptability to environment, stable and reliable work and convenient maintenance. The method realizes the mechanical compressive strength test under the state of temperature and pressure, breaks the industry blank, better guides the production practice, and can be widely applied to the maintenance of the oil well cement stones.
Description
Technical Field
The invention relates to press testing equipment, in particular to a high-temperature high-pressure maintenance and strength and elastic modulus comprehensive tester which is used for comprehensively measuring the cement performance of an oil well in an oil field.
Background
The high-temperature high-pressure curing kettle is used for preparing an oil well cement sample for testing the compressive strength, and is used for curing the test block for testing the oil well cement strength under high-temperature and high-pressure conditions. The press is used for measuring the left-right and up-down displacement changes of the cement test block, and can calculate the corresponding poisson ratio and elastic modulus. The traditional high-temperature high-pressure curing kettle and the pressure machine tester are separately designed, the functions of curing the oil well cement stone and testing the pressure are separated, and the device is large in size, complex in operation, single in function and high in cost.
Disclosure of Invention
Aiming at the technical problems, the invention aims to provide a high-temperature high-pressure curing and strength and elastic modulus comprehensive tester which can be used for curing cement paste blocks under high-temperature high-pressure environment and testing the compressive strength, elastic modulus and poisson ratio of the cement blocks, and one device integrates four functions of high-temperature high-pressure curing, compressive testing, elastic modulus and poisson ratio testing, so that the aim of saving the device cost is fulfilled.
The aim of the invention is at least achieved by one of the following technical schemes:
a high-temperature high-pressure maintenance and strength and elastic modulus comprehensive tester comprises:
the rack assembly comprises a base plate, an upper pressing plate and a plurality of upright posts which are vertically and fixedly connected between the base plate and the upper pressing plate, and the base plate is provided with a linear guide rail;
The kettle body assembly is vertically and fixedly arranged on the upper pressing plate and comprises a kettle body, a kettle cover assembly fixedly arranged at the upper end of the kettle body, a kettle cover thermocouple arranged on the kettle cover assembly, a die body assembly and a piston block movably arranged in the kettle body, and a lower ejector rod, wherein one end of the lower ejector rod is connected with the piston block, and the other end of the lower ejector rod is in sealing fit with a central hole at the lower end of the kettle body and extends to the outside of the kettle body;
the displacement sensor assembly is fixedly arranged on the peripheral wall of the kettle body and is used for measuring the displacement of the cement blocks in the kettle body;
the oil cylinder assembly is arranged on the linear guide rail of the base plate in a sliding manner and is positioned below the kettle body assembly;
the ball head assembly is fixedly arranged at the output end of the oil cylinder assembly and used for transmitting and detecting the output force of the oil cylinder assembly;
The laser sensor assembly is fixedly arranged at the output end of the oil cylinder assembly and is used for measuring the upper and lower distances of the cement block fission;
the hydraulic system is connected with the oil cylinder assembly pipeline and is used for controlling the action of the oil cylinder assembly;
The driving system is arranged on the base plate and drives the oil cylinder assembly to reciprocate along the linear guide rail;
and the display panel is used for calculating the corresponding poisson ratio and elastic modulus according to the data acquired by the displacement sensor assembly and the laser sensor assembly and displaying the measured data.
Further, the kettle cover assembly comprises a kettle cover, a sealing shaft plug, a kettle handle and a shaft plug nut, wherein the lower end of the sealing shaft plug is sequentially provided with a V-shaped sealing rubber ring and an O-shaped sealing rubber ring, and the bottommost part is provided with a spiral elastic retainer ring; kettle handles are arranged in two side holes of the kettle cover, and the top end of the sealing shaft plug is fixed on the kettle cover through a shaft plug nut; the kettle cover, the sealing shaft plug, the kettle handle and the shaft plug nut are all made of stainless steel materials.
Further, multiple sealing is adopted between the lower ejector rod and the kettle body, and a dustproof ring, a guide ring, a check ring, an O-shaped sealing ring and an XY ring for a shaft are arranged in sequence from bottom to top; the kettle body and the kettle cover component are made of stainless steel materials,
Further, the die body assembly comprises a die plate assembly, an upper die block assembly, a lower die plate seat, a lower pressure head, a positioning ring and a taper sleeve, wherein the die plate assembly consists of four arc-shaped copper die plates; the upper module assembly consists of a spherical pressure head and an upper module, the lower pressure head is provided with a conical surface, and the large end of the lower pressure head is contacted with the piston block; the lower template seat, the lower pressure head and the lower template are connected by cylindrical pins; the template assembly, the lower template seat and the lower pressure head are connected by a pull rod; the taper sleeve is sleeved outside the template assembly; the locating ring is arranged at the upper end of the taper sleeve, and the upper module assembly is arranged on the locating ring.
Further, the piston block and the inner peripheral wall of the kettle body are sealed by an O-shaped sealing ring; the kettle cover thermocouple is inserted into the upper module assembly of the die body assembly through the kettle cover and is fixed by nuts.
Further, the displacement sensor assembly comprises a displacement sensor, a cutting sleeve straight joint, an iron core, a spring, a large sliding sleeve, a small sliding sleeve, an end socket, an outer pipe and an adjusting nut, wherein the end socket is formed by welding the outer pipe, and the adjusting nut is screwed with one end of an M thread of the end socket; the inner spring and the iron core are sequentially arranged in the outer tube, and the large sliding sleeve, the displacement sensor, the small sliding sleeve and the spring sequentially penetrate through the outer tube and are locked by the cutting sleeve straight joint.
Further, the oil cylinder assembly comprises a piston, a piston rod, a cylinder barrel welding body and a cylinder cover, wherein the cylinder barrel welding body is formed by welding a base, a cylinder body and an end flange; the piston is arranged at the lower end of the piston rod, the piston and the piston rod are sealed by an O-shaped sealing ring, the lower end of the piston rod is arranged in a cylinder barrel welding body, and a U-shaped sealing ring for holes, a guide ring and a square ring for holes are sequentially arranged between the piston and the inner wall of the cylinder barrel welding body from bottom to top; the cylinder cover is fixedly connected to the cylinder barrel welding body, and a YX-type sealing ring for a shaft, a check ring, an O-type sealing ring, a guide ring and a dust ring are sequentially arranged between the piston rod and the cylinder cover from bottom to top; a straight-through type pressure oil injection cup is arranged below the oil cylinder; and the base is fixedly provided with an in-line needle bearing which is in rolling fit with the linear guide rail.
Further, the ball head assembly comprises a pressure head assembly, a sensor cushion block, an upper flange, a lower flange, a pressure sensor, a spring, a cushion block and an upper pressure head, wherein the spring is arranged in the upper flange, the cushion block is pressed on the spring, penetrates through the upper flange to be inserted into the upper pressure head and is fixed by an inner hexagonal cone end set screw, the pressure head assembly is arranged in a cushion block cavity, the pressure sensor is arranged on the pressure head assembly in the upper flange cavity after being arranged in a bracket, and the bracket and the pressure sensor are sealed by an O-shaped sealing ring; the sensor cushion block is arranged on the pressure sensor; the upper flange and the lower flange are connected by using the hexagon socket head cap screw and the elastic pad.
Further, the laser sensor assembly comprises a sensor probe and a sensor support, wherein the mounting frame part of the sensor probe is connected with the sensor support through a cross groove pan head screw and a spring pad, and the sensor support is connected to a piston rod of the oil cylinder assembly through an inner hexagonal cylindrical head screw and the spring pad.
Further, the driving system comprises a screw rod supporting seat, a screw rod, a screw nut seat, a gear box and a servo motor, wherein the gear box is fixedly arranged on the base plate, the servo motor is in driving connection with the input end of the gear box, the output end of the gear box is in driving connection with one end of the screw rod, the other end of the screw rod is fixedly connected with the screw rod supporting seat on the base plate in a rotating manner, and the screw nut seat is matched with the screw rod and is fixedly connected with the oil cylinder assembly.
Compared with the prior art, the invention has the beneficial effects that:
1. The invention relates to a comprehensive testing machine with a high-temperature high-pressure oxygen protecting kettle and a pressing machine designed into a whole, which can be used for curing cement paste blocks under high-temperature high-pressure environment and testing the compressive strength, the elastic modulus and the poisson ratio of the cement paste blocks.
2. According to the invention, the displacement sensor and the laser sensor can accurately acquire the changed data of the cement stone, the error is 1um, and the accuracy is high.
3. The invention is designed into a plurality of kettle bodies as a whole, has compact structure, small volume, cost saving and simple and easy operation. Has strong adaptability to environment, stable and reliable work and convenient maintenance.
4. The method realizes the mechanical compressive strength test under the state of temperature and pressure, breaks the industry blank, better guides the production practice, and can be widely applied to the maintenance of the oil well cement stones.
Drawings
FIG. 1 is a schematic front view of a comprehensive tester according to an embodiment of the present invention.
FIG. 2 is a schematic front view of a portion of a combined test apparatus (without a drive system) according to an embodiment of the present invention.
Fig. 3 is a front left view of the integrated tester of the embodiment of the invention.
Fig. 4 is a schematic structural diagram of a tank assembly according to an embodiment of the invention.
Fig. 5 is a schematic structural diagram of a kettle cover assembly according to an embodiment of the invention. .
FIG. 6 is a schematic view of a mold body assembly according to an embodiment of the invention. .
FIG. 7 is a schematic diagram of a displacement sensor assembly according to an embodiment of the invention.
Fig. 8 is a schematic diagram of a cylinder assembly according to an embodiment of the invention.
FIG. 9 is a schematic view of a ball head assembly according to an embodiment of the invention.
Fig. 10 is a schematic diagram of a laser sensor assembly according to an embodiment of the invention.
Fig. 11 is a schematic diagram of a driving system according to an embodiment of the invention.
Fig. 12 is a schematic front view of a hydraulic system according to an embodiment of the invention.
Fig. 13 is a schematic left-hand view of a hydraulic system according to an embodiment of the invention.
Fig. 14 is a schematic top view of a hydraulic system according to an embodiment of the invention.
The figure shows: 1-a kettle body assembly; 101-a kettle cover thermocouple; 102-a kettle cover assembly; 1021-kettle handle; 1022-kettle cover; 1023-sealing the shaft plug; 1024-spindle plug nuts; 1025-V type sealing rubber ring; 1026-O type sealing rubber ring; 1027-spiral circlips; 103, a kettle body; 104-a die body assembly; 1041-a retaining ring; 1042-upper module assembly; 1043-a template assembly; 1044-lower template base; 1045-lower ram; 1046-a cylindrical pin; 1047-lower template; 1048-tie rod; 1049-a cone sleeve; 105-piston block; 106-O-shaped sealing rings; 107-XY circles for axes; 108-a retainer ring; 109-O-ring seal; 110-a guide ring; 111-dust ring; 112-lower ejector rod; 2-a drive system; 201-a screw rod supporting seat; 202-a lead screw; 203-a nut seat; 204-a gearbox; 205-a servo motor; 3-a frame assembly; 301-upper pressing plate; 302-a lower fixing flange; 303-an upright; 304-hexagon socket head cap screw; 305-a base plate; 306-a linear guide rail; 307-eye screws; 308-in-line needle bearings, 4-laser sensor assemblies; 401-a laser sensor probe; 402-cross slot pan head screw; 403-spring pad; 404-sensor holder; 405-hexagon socket head cap screw; 406-spring pad; 5-a ball head assembly; 501-a lower flange; 502-sensor pads; 503-hexagon socket head cap screw; 504-spring pad; 505-upper flange; 506-bracket; 507-O-shaped sealing rings; 508-a pressure sensor; 509-a spring; 510-an inner hexagonal cone end set screw; 511-upper ram; 512-cushion blocks; 513-ram assemblies; 6-an oil cylinder assembly; 601-a piston rod; 602-hex head bolts; 603-spring pad; 604-cylinder head; 605-O-ring seal; 606-YX type sealing ring for shaft; 607-cylinder welded body; 608-a piston; 609-O type seal ring; 610-hexagon socket head cap screw; 611-spring pad; 612-U-shaped sealing ring for holes; 613-a guide ring; 614-square ring for hole; 615-O-ring seal; 616-retainer ring; 617-guide ring; 618-a dust ring; 619-through type pressure oil filling cup; a 7-displacement sensor assembly; 701-an iron core; 702-ferrule straight-through connector; 703-a spring; 704-small sliding sleeves; 705-displacement sensor; 706-an internal spring; 707-outer tube; 708-large sliding sleeve; 709-adjusting the nut; 710-end; 8-a hydraulic system; 801-a tank assembly; 802-oil return pipe; 803-ferrule right angle connector; 804-tubing; 805 ferrule right angle connector; 806-a tank cover plate; 807-cross slot pan head screw; 808-an air cleaner; 809-an integrated block; 810-a plug screw; 811-a combined sealing ring; 812-throttle plug; 813-a straight thermocouple; 814-a servo motor; 815-hex head bolts; 816-flat pad; 817—spring pad; 818-a coupling assembly; 819-connecting flanges; 820-gear pump; 821-oil inlet pipe; 822-a gasket; 823-hexagon socket head cap screws; 824-ferrule right angle connector; 825-combination seal ring; 826-reducer union; 827-mesh filter; 828 hex head bolt; 829-two-position four-way solenoid valve; 830-hexagon socket head cap screw; 831-hexagon socket head cap screw; 832-spring pad; 833-hexagon socket head cap screw; 834-overflow valve.
Detailed Description
The object of the present invention will be described in further detail with reference to the specific embodiments, wherein like parts are designated by like reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
As shown in FIG. 1, the high-temperature high-pressure maintenance and strength and elastic modulus comprehensive tester comprises a driving system 2, a frame component 3, four kettle body assemblies 1, a displacement sensor component 7, an oil cylinder assembly 6, a ball head component 5, a laser sensor component 4, a hydraulic system 8 and a display panel.
The frame assembly 3 comprises a base plate 305, an upper pressing plate 301, a plurality of upright posts 303 and flying ring screws 307 which are vertically and fixedly connected between the base plate 305 and the upper pressing plate 301, wherein the upper pressing plate 301 and the upright posts 303 are fixed by hexagon head bolts and elastic pads, the base plate 305 and the upright posts 303 are fixed by hexagon socket head cap screws and elastic pads, a linear guide rail 306 is fixedly arranged on the base plate 305 through positioning pins and hexagon socket head cap screws 304, and the linear guide rail 306 in the embodiment adopts flat key bars; eye screws 307 are mounted on the upper pressure plate 301 and the base plate 305, respectively;
The four kettle body assemblies 1 are vertically and fixedly arranged on the upper pressing plate 301 at certain intervals along the length direction, each kettle body assembly 1 comprises a kettle body 103, a kettle cover assembly 102 fixedly arranged at the upper end of the kettle body 103, a kettle cover thermocouple 101 arranged on the kettle cover assembly 102, a die body assembly and a piston block 105 which are movably arranged in the kettle body 103 in sequence, and a lower push rod 112, one end of which is connected with the piston block 105, and the other end of which is in sealing fit with a central hole at the lower end of the kettle body 103 and extends out of the kettle body 103; the kettle body assembly 1 is arranged on the upper pressing plate 301 through a lower fixing flange 302, a hexagon head bolt, a flat pad, an elastic pad and a rubber pad;
The displacement sensor assembly 7 is fixedly arranged on the peripheral wall of the kettle body 103 and is used for measuring the displacement of the cement blocks in the kettle body 103;
the oil cylinder assembly 6 is arranged on the linear guide rail 306 of the base plate 305 in a sliding manner and is positioned below the kettle body assembly 1;
The ball head assembly 5 is fixedly arranged at the output end of the oil cylinder assembly 6 and is used for transmitting and detecting the output force of the oil cylinder assembly 6;
the laser sensor assembly 4 is fixedly arranged at the output end of the oil cylinder assembly 6 and is used for measuring the upper and lower distances of the cement block fission;
the hydraulic system 8 is connected with the oil cylinder assembly 6 through a pipeline and is used for controlling the oil cylinder assembly 6 to act;
the driving system 2 is arranged on the base plate 305 and drives the oil cylinder assembly 6 to reciprocate along the linear guide rail 306;
The display panel is used for calculating the corresponding poisson ratio and elastic modulus according to the data acquired by the displacement sensor assembly 7 and the laser sensor assembly 4 and displaying the measured data.
Specifically, as shown in fig. 5, the kettle cover assembly 102 includes a kettle cover 1022, a sealing shaft plug 1023, a kettle handle 1021 and a shaft plug nut 1024, wherein the lower end of the sealing shaft plug 1023 is provided with a V-shaped sealing rubber ring 1025 and an O-shaped sealing rubber ring 1026 in sequence, and the bottommost part is provided with a spiral elastic retainer ring 1027; kettle handles 1021 are arranged in holes on two sides of the kettle cover 1022, and the top end of the sealing shaft plug 1023 is fixed on the kettle cover 1022 through a shaft plug nut 1024; the kettle cover 1022, the sealing shaft plug 1023, the kettle handle 1021 and the shaft plug nut 1024 are made of 1Cr18Ni9Ti stainless steel materials. The kettle cover assembly 102 of the embodiment adopts the design of double sealing rubber rings, so that the effect of the kettle cover sealing device is more remarkable, and the sealing effect is best.
Specifically, as shown in fig. 4, in a possible embodiment, multiple seals are adopted between the lower ejector rod 112 and the kettle body 103, and a dust ring 111, a guide ring 110, a retainer ring 108, an O-ring 109, and an XY ring 107 for a shaft are sequentially arranged from bottom to top, so that a good sealing effect is achieved, and the kettle body 103 and the kettle cover assembly 102 are both made of 1Cr18Ni9Ti stainless steel materials. The piston block 105 and lower stem 112 are shown as being of 316L material.
Specifically, as shown in fig. 6, the mold body assembly 104 includes a mold plate assembly 1043, an upper mold plate assembly 1042, a lower mold plate 1047, a lower mold plate seat 1044, a lower pressure head 1045, a positioning ring 1041, and a taper sleeve 1049, where the mold plate assembly 1043 is composed of four arc-shaped copper mold plates; the upper module assembly 1042 consists of a spherical pressure head and an upper module, the lower pressure head 1045 is provided with a conical surface, and the large end of the lower pressure head contacts the piston block 105; the lower template seat 1044, the lower pressing head 1045 and the lower template 1047 are connected by cylindrical pins 1046; the template assembly 1043, the lower template seat 1044 and the lower pressing head 1045 are connected by a pull rod 1048; the taper sleeve 1049 is sleeved outside the template assembly 1043, and is separated from the template assembly 1043 when being extruded by the conical surface of the lower pressure head 5; the locating ring 1041 is mounted on the upper end of the cone sleeve 1049, and the upper module assembly 1042 is mounted on the locating ring 1041 to limit the axial position of the cone sleeve 1049 and the upper module assembly 1042.
Specifically, as shown in fig. 4, the piston block 105 and the inner peripheral wall of the kettle body 103 are sealed by an O-ring 106; the kettle cover thermocouple 101 penetrates through the kettle cover to be inserted into the upper module assembly 1042 of the die body assembly 4 and is fixed by nuts; the kettle cover thermocouple 101 adopts E-type, the contact length is 105mm, the material is nickel-chromium-nickel-silicon, and the measurement temperature range is 0-800 ℃.
Specifically, as shown in fig. 7, the displacement sensor 7 assembly includes a displacement sensor 705, a ferrule through joint 702, an iron core 701, a spring 703, a large sliding sleeve 708, a small sliding sleeve 704, a tip 710, an outer tube 707, and an adjusting nut 709, wherein the tip 710 is welded with the outer tube 707, and the adjusting nut 709 is screwed with one end of an M6 thread of the tip 710; the inner spring 706 and the iron core 701 are sequentially arranged in the outer tube 707, and the large sliding sleeve 708, the displacement sensor 705, the small sliding sleeve 704 and the spring 703 sequentially penetrate through the outer tube 707 and are locked by the clamping sleeve through joint 702.
Specifically, as shown in fig. 8, the oil cylinder assembly 6 includes a piston 608, a piston rod 601, a cylinder tube welding body 607, and a cylinder cover 604, wherein the cylinder tube welding body 607 is formed by welding a base, a cylinder body and an end flange; the piston 608 is arranged at the lower end of the piston rod 601, the piston 608 and the bottom of the piston rod 601 are assembled and positioned by using a hexagon socket head cap screw 610 and a spring pad 611, the piston 608 and the piston rod 601 are sealed by using an O-shaped sealing ring 609, the lower end of the piston rod 601 is arranged in a cylinder barrel welding body 607, and a U-shaped sealing ring 612 for holes, a guide ring 613 and a square ring 614 for holes are sequentially arranged between the piston 608 and the inner wall of the cylinder barrel welding body 607 from bottom to top; the cylinder cover 604 is fixedly connected to the cylinder barrel welding body 607, and a YX-type sealing ring 606 for a shaft, a check ring 616, an O-type sealing ring 615, a guide ring 617 and a dust ring 618 are sequentially arranged between the piston rod 601 and the cylinder cover 604 from bottom to top; a through type pressure oil injection cup 619 is arranged below the oil cylinder; the base is fixedly provided with an in-line needle bearing 308 which is in rolling fit with the linear guide rail through a cross groove pan head screw and an elastic pad. Rated operating pressure of the cylinder, 20MPa, stroke of the piston rod 601: 40mm ensures that the piston 608 can be locked at any position during operation of the cylinder at rated operating pressure.
Specifically, as shown in fig. 9, the ball head assembly 5 includes a pressing head assembly 513, a sensor cushion block 502, an upper flange 505, a lower flange 501, a pressure sensor 508, a spring 509, a cushion block 5012, and an upper pressing head 511, wherein the spring 509 is installed in the upper flange 505, the cushion block 512 is pressed on the spring 509, is inserted into the upper pressing head 511 through the upper flange 505 and is fixed by an inner hexagonal cone end fastening screw 510, the pressing head assembly 513 is installed in a cavity of the cushion block 512, the pressure sensor 508 is installed on the pressing head assembly 513 in the cavity of the upper flange 505 after being installed in a bracket 506, and an O-shaped sealing ring 507 is used for sealing between the bracket 506 and the pressure sensor 508; the sensor pad 502 rests on a pressure sensor 508; the upper and lower flanges are connected by means of hexagon socket head cap screws 503 and spring washers 504.
Specifically, as shown in fig. 10, the laser sensor assembly 4 includes a laser sensor probe 401 and a sensor holder 404, wherein a mount portion of the laser sensor probe 401 is connected to the sensor holder 404 with a cross-slot pan head screw 402 and a spring pad 403, and the sensor holder 404 is connected to a piston rod 601 of the cylinder assembly 6 by a hexagon socket head screw 405 and a spring pad 406.
Specifically, as shown in fig. 11, the driving system 2 includes a screw rod supporting seat 201, a screw rod 202, a screw nut seat 203, a gear box 204, and a servo motor 205, where the gear box 204 is fixedly installed on the base plate, the servo motor 205 is in driving connection with an input end of the gear box 204, an output end of the gear box 204 is in driving connection with one end of the screw rod 202, the other end of the screw rod is rotatably connected with the screw rod supporting seat 201 fixed on the base plate, and the screw nut seat 203 is matched with the screw rod 202 and is fixedly connected with the oil cylinder assembly 6.
Specifically, as shown in fig. 12 to 14, the illustrated hydraulic system 8 includes a servo motor 814, a gear pump 820, an oil tank assembly 801, an integrated block 809, a two-position four-way solenoid valve 829, a relief valve 834, and the like. The servo motor 814 is mounted on the oil tank cover plate 806 by using a hexagon head bolt 815, a flat pad 816 and a spring pad 817, the coupling assembly 818 is connected with the servo motor 814, the connecting flange 819 is mounted outside the coupling assembly 818 and the oil tank cover plate 6 is connected by using an inner hexagon socket head cap screw 823, the gear pump 820 is mounted below the connecting flange 819, and the gear pump 820 and the net filter 827 are assembled together by a cutting sleeve type right angle joint 824, a combined sealing ring 825, a reducing joint 826, an oil inlet pipe 821 and a sealing pad 822. The outlet end of the gear pump 820 is shown connected to the inlet port of the manifold block 809 by ferrule right angle connectors 803 and 805 and oil line 804 through the tank cover 806, the relief valve 834 is mounted to the manifold block 809 with a hexagon socket head cap screw 833, the two position four way solenoid valve 829 is mounted to the manifold block 809 with a hexagon socket head cap screw 830, the throttle plug 812 is mounted to the manifold block, and the unused holes on the sides of the manifold block 809 are sealed with the screw plug 810 and the combination seal ring 811. The return line 802 is connected to the manifold 809 through a tank cover 806. The manifold block 809 is attached to the tank cover 806 with hexagon socket cap screws 831 and spring pads 832. An air cleaner 808 is mounted to the tank cover plate 806 with cross-slot pan head screws 807, and a straight thermocouple 813 is mounted to the tank cover plate 806. The tank cover is mounted to the tank assembly 801 with hex head bolts 828 and spring washers 817.
When the comprehensive tester provided by the embodiment is used, the oil well cement test die is firstly placed in the kettle body 103, the kettle cover assembly 102 is covered and screwed, the kettle cover 1022 is screwed by a torque wrench, and maintenance is performed under a specified high-temperature and high-pressure environment. After the oil well cement test die reaches the curing age, the servo motor 205 is started, the servo motor 205 rotates to drive the screw pair to rotate, thereby driving the oil cylinder assembly 6 to move along the flat key bar, when the oil cylinder assembly moves below the kettle body 103 of the kettle body assembly 1, the piston rod 601 of the oil cylinder assembly 6 starts to act upwards, when the oil cylinder assembly moves to a certain position, the generated pressure acts on the die body assembly 104 to enable the die plate assembly 104 to be demolded, at the moment, the lower pressure head 1045 extrudes the taper sleeve to enable the taper sleeve to fall off, the end 701 of the displacement sensor assembly 7 on the kettle body 103 directly acts on the die plate assembly 1043 contacted with the cement stone block, and accordingly the left-right movement distance generated when the cement stone block deforms can be measured, the up-down movement distance generated when the cement block deforms is measured by using the laser sensor, the compression resistance of the cement stone block is measured through measuring the data when the cement stone block deforms, and the corresponding poisson ratio and the elastic modulus can be calculated. The measured performance data are displayed directly on the touch screen of the display panel.
The tester provided by the embodiment comprises the following advantages:
1. the instrument is a comprehensive testing machine which is designed into a whole by a high-temperature high-pressure oxygen protection kettle and a pressing machine, and can be used for curing cement paste blocks under the high-temperature high-pressure environment and testing the compressive strength, the elastic modulus and the poisson ratio of the cement paste blocks.
2. The instrument can accurately collect the changed data of the cement stone block through the displacement sensor and the laser sensor, the error is 1um, and the precision is high.
3. The instrument is designed into four kettle bodies as a whole, has compact structure and small volume, saves cost, and is simple and easy to operate. Has strong adaptability to environment, stable and reliable work and convenient maintenance. The invention can be widely applied to maintenance of the oil well cement stone.
In summary, the core of the invention is to test the compressive strength of the cement stone block of the oil well under the high-temperature and high-pressure environment, and the probe of the displacement sensor can accurately collect the data when the cement stone block changes left and right during demoulding, and the error is 1um. The cylinder assembly is provided with the laser sensor, so that the laser ranging function is added, the measuring precision is 1 mu m, the non-contact measurement is performed, and the measuring precision is high. The change of the left-right displacement and the up-down displacement of the cement block can be measured, and the corresponding poisson ratio and elastic modulus can be calculated. The instrument integrates the maintenance and pressure measurement of the oil well cement in a high-temperature and high-pressure environment on one instrument, and is a comprehensive tester for four maintenance kettles. The kettle cover assembly has the advantages of simple structure, convenient operation and remarkable sealing effect. The method has good popularization and application values, can greatly improve the measurement accuracy, and has good application prospect, social benefit and economic benefit.
The above examples of the present invention are merely illustrative of the present invention and are not intended to limit the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (7)
1. The utility model provides a high temperature high pressure maintenance and intensity, elastic modulus integrated test appearance which characterized in that includes:
the rack assembly comprises a base plate, an upper pressing plate and a plurality of upright posts which are vertically and fixedly connected between the base plate and the upper pressing plate, and the base plate is provided with a linear guide rail;
The kettle body assembly is vertically and fixedly arranged on the upper pressing plate and comprises a kettle body, a kettle cover assembly fixedly arranged at the upper end of the kettle body, a kettle cover thermocouple arranged on the kettle cover assembly, a die body assembly and a piston block movably arranged in the kettle body, and a lower ejector rod, wherein one end of the lower ejector rod is connected with the piston block, and the other end of the lower ejector rod is in sealing fit with a central hole at the lower end of the kettle body and extends to the outside of the kettle body;
the displacement sensor assembly is fixedly arranged on the peripheral wall of the kettle body and is used for measuring the displacement of the cement blocks in the kettle body;
the oil cylinder assembly is arranged on the linear guide rail of the base plate in a sliding manner and is positioned below the kettle body assembly;
the ball head assembly is fixedly arranged at the output end of the oil cylinder assembly and used for transmitting and detecting the output force of the oil cylinder assembly;
The laser sensor assembly is fixedly arranged at the output end of the oil cylinder assembly and is used for measuring the upper and lower distances of the cement block fission;
the hydraulic system is connected with the oil cylinder assembly pipeline and is used for controlling the action of the oil cylinder assembly;
The driving system is arranged on the base plate and drives the oil cylinder assembly to reciprocate along the linear guide rail;
The display panel is used for calculating the corresponding poisson ratio and elastic modulus according to the data acquired by the displacement sensor assembly and the laser sensor assembly and displaying the measured data; the kettle cover assembly comprises a kettle cover, a sealing shaft plug, a kettle handle and a shaft plug nut, wherein the lower end of the sealing shaft plug is sequentially provided with a V-shaped sealing rubber ring and an O-shaped sealing rubber ring, and the bottommost part is provided with a spiral elastic retainer ring; kettle handles are arranged in two side holes of the kettle cover, and the top end of the sealing shaft plug is fixed on the kettle cover through a shaft plug nut; the die body assembly comprises a die plate assembly, an upper die block assembly, a lower die plate seat, a lower pressure head, a positioning ring and a taper sleeve, wherein the die plate assembly consists of four arc-shaped copper die plates; the upper module assembly consists of a spherical pressure head and an upper module, the lower pressure head is provided with a conical surface, and the large end of the lower pressure head is contacted with the piston block; the lower template seat, the lower pressure head and the lower template are connected by cylindrical pins; the template assembly, the lower template seat and the lower pressure head are connected by a pull rod; the taper sleeve is sleeved outside the template assembly; the positioning ring is arranged at the upper end of the taper sleeve, and the upper module assembly is arranged on the positioning ring; the ball head assembly comprises a pressure head assembly, a sensor cushion block, an upper flange, a lower flange, a pressure sensor, a spring, a cushion block and an upper pressure head, wherein the spring is arranged in the upper flange, the cushion block is pressed on the spring, penetrates through the upper flange to be inserted into the upper pressure head and is fixed by an inner hexagonal cone end set screw, the pressure head assembly is arranged in a cushion block cavity, the pressure sensor is arranged in a bracket and then is arranged on the pressure head assembly in the upper flange cavity, and the bracket and the pressure sensor are sealed by an O-shaped sealing ring; the sensor cushion block is arranged on the pressure sensor; the upper flange and the lower flange are connected by using the hexagon socket head cap screw and the elastic pad.
2. The high temperature and high pressure maintenance and strength and elastic modulus comprehensive tester according to claim 1, wherein: the lower ejector rod and the kettle body are sealed in multiple ways, and a dustproof ring, a guide ring, a check ring, an O-shaped sealing ring and an XY ring for the shaft are sequentially arranged from bottom to top.
3. The high temperature and high pressure maintenance and strength and elastic modulus comprehensive tester according to claim 1, wherein: the piston block and the inner peripheral wall of the kettle body are sealed by an O-shaped sealing ring; the kettle cover thermocouple is inserted into the upper module assembly of the die body assembly through the kettle cover and is fixed by nuts.
4. The high temperature and high pressure maintenance and strength and elastic modulus comprehensive tester according to claim 1, wherein: the displacement sensor assembly comprises a displacement sensor, a cutting sleeve straight-through joint, an iron core, a spring, a large sliding sleeve, a small sliding sleeve, an end socket, an outer pipe and an adjusting nut, wherein the end socket is formed by welding the outer pipe, and one end of an M thread of the adjusting nut is screwed with one end of the end socket; the spring and the iron core are sequentially arranged in the outer tube, and the large sliding sleeve, the displacement sensor, the small sliding sleeve and the spring sequentially penetrate through the outer tube and are locked by the cutting sleeve through joint.
5. The high temperature and high pressure maintenance and strength and elastic modulus comprehensive tester according to claim 1, wherein: the cylinder assembly comprises a piston, a piston rod, a cylinder barrel welding body and a cylinder cover, wherein the cylinder barrel welding body is formed by welding a base, a cylinder body and an end flange; the piston is arranged at the lower end of the piston rod, the piston and the piston rod are sealed by an O-shaped sealing ring, the lower end of the piston rod is arranged in a cylinder barrel welding body, and a U-shaped sealing ring for holes, a guide ring and a square ring for holes are sequentially arranged between the piston and the inner wall of the cylinder barrel welding body from bottom to top; the cylinder cover is fixedly connected to the cylinder barrel welding body, and a YX-type sealing ring for a shaft, a check ring, an O-type sealing ring, a guide ring and a dust ring are sequentially arranged between the piston rod and the cylinder cover from bottom to top; a straight-through type pressure oil injection cup is arranged below the oil cylinder; and the base is fixedly provided with an in-line needle bearing which is in rolling fit with the linear guide rail.
6. The high temperature and high pressure maintenance and strength and elastic modulus comprehensive tester according to claim 1, wherein: the laser sensor assembly comprises a sensor probe and a sensor support, wherein the mounting frame part of the sensor probe is connected with the sensor support through a cross groove pan head screw and a spring pad, and the sensor support is connected to a piston rod of the oil cylinder assembly through an inner hexagonal cylindrical head screw and the spring pad.
7. The high temperature and high pressure maintenance and strength and elastic modulus comprehensive tester according to claim 1, wherein: the driving system comprises a screw rod supporting seat, a screw rod, a screw nut seat, a gear box and a servo motor, wherein the gear box is fixedly arranged on the base plate, the servo motor is in driving connection with the input end of the gear box, the output end of the gear box is in driving connection with one end of the screw rod, the other end of the screw rod is fixedly connected with the screw rod supporting seat on the base plate in a rotating manner, and the screw nut seat is matched with the screw rod and fixedly connected with the oil cylinder assembly.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401769A (en) * | 2010-09-10 | 2012-04-04 | 中国石油化工股份有限公司 | Oil well cement high-temperature high-pressure compressive stress strain system |
| CN110470596A (en) * | 2019-09-12 | 2019-11-19 | 西南石油大学 | Behavior of Hardened Cement Paste cementing strength in-situ testing device and method under a kind of operating condition of simulation high temperature and pressure underground |
| CN214277739U (en) * | 2019-11-29 | 2021-09-24 | 华南理工大学 | High-temperature high-pressure maintenance and strength and elastic modulus comprehensive tester |
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2019
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401769A (en) * | 2010-09-10 | 2012-04-04 | 中国石油化工股份有限公司 | Oil well cement high-temperature high-pressure compressive stress strain system |
| CN110470596A (en) * | 2019-09-12 | 2019-11-19 | 西南石油大学 | Behavior of Hardened Cement Paste cementing strength in-situ testing device and method under a kind of operating condition of simulation high temperature and pressure underground |
| CN214277739U (en) * | 2019-11-29 | 2021-09-24 | 华南理工大学 | High-temperature high-pressure maintenance and strength and elastic modulus comprehensive tester |
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