CN104070596B - A kind of superhigh temperature hardened oilwell cement curing autoclave and using method thereof - Google Patents

A kind of superhigh temperature hardened oilwell cement curing autoclave and using method thereof Download PDF

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Publication number
CN104070596B
CN104070596B CN201410286887.5A CN201410286887A CN104070596B CN 104070596 B CN104070596 B CN 104070596B CN 201410286887 A CN201410286887 A CN 201410286887A CN 104070596 B CN104070596 B CN 104070596B
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pressure
kettle
autoclave
supply connector
temperature
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CN104070596A (en
Inventor
刘书杰
许明标
谢仁军
刘卫红
耿亚楠
王晓亮
邢希金
刘海轩
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China National Offshore Oil Corp CNOOC
CNOOC Research Institute Co Ltd
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Yangtze University
China National Offshore Oil Corp CNOOC
CNOOC Research Institute Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B28B11/245Curing concrete articles

Abstract

The present invention relates to a kind of superhigh temperature hardened oilwell cement curing autoclave and using method thereof, it comprises main body, high pressure kettle cover, control appliance, temperature, pressure control instrument, air manometer, Pressure gauge and temperature display meter; One end of body top arranges high pressure kettle cover in the horizontal direction, and the other end of body top vertically arranges control appliance, control appliance sets gradually temperature, pressure control instrument, air manometer, Pressure gauge and temperature display meter; Main body comprises housing, the autoclave body be arranged in housing, sealing ring, kettle heating tube, cooling pipeline, in cooling water supply connector, kettle, cooling water outlet joint, kettle cool water supply connector, kettle outer cooling water outlet joint, high-pressure water inlet joint, High Pressure Drain joint and high-pressure pump outward and be arranged on water supply connector and the water out adapter of housing one side wall lower ends in kettle.The present invention can be widely used in the maintenance of hardened oilwell cement.

Description

A kind of superhigh temperature hardened oilwell cement curing autoclave and using method thereof
Technical field
The present invention relates to the maintenance of equipment of a kind of Behavior of Hardened Cement Paste and using method thereof, particularly about a kind of superhigh temperature hardened oilwell cement curing autoclave and using method thereof.
Background technology
At present, verified oil reserves has been about half is in the world viscous crude.China's viscous crude resource is also quite abundant, and thickened oil recovery has been carried out all in the oil fields such as the Liaohe River, triumph, Kelamayi.For heavy crude reservoir, because viscous crude flow resistance is large, mostly adopt the mode of heating power viscosity reduction to exploit, namely thermal recovery, mainly adopts the method for heat extraction by steam injection.Heat extraction by steam injection is generally steam soak, and the later stage transfers the method for steam flooding to, and therefore the well cementation of heavy oil heat production well must adapt to and meet the requirement of steam soak and steam driving exploitation mode.Owing to there is the exploitation of thermal production well high temperature, propose requirements at the higher level to the elevated temperature strength performance of well-cementing cement, the temperature of wherein thermal production well high temperature exploitation can up to 370 DEG C.
Behavior of Hardened Cement Paste curing autoclave mainly provides the maintenance of equipment under temperature and pressure condition at the bottom of simulation well, in the conventional curing instrument of domestic market, the maximum temperature of its long-term maintenance generally can only reach about 250 DEG C, cannot meet the evaluation requirement of thermal production well to cement strength performance under higher temperature.And the strength character of Behavior of Hardened Cement Paste under long term high temperature effect evaluates the important indicator of thermal production well cement slurry property, it is the important guarantee ensureing that thermal production well long-term stability is produced.Therefore, Behavior of Hardened Cement Paste under steam thermal recovery situation must be simulated and be subject to the condition of high temperature action for a long time, reliable experimental data could be obtained.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of can simulate thermal production well wellbore environment and easy to operate superhigh temperature hardened oilwell cement curing autoclave and using method thereof.
For achieving the above object, the present invention takes following technical scheme: a kind of superhigh temperature hardened oilwell cement curing autoclave, is characterized in that: it comprises main body, high pressure kettle cover, control appliance, temperature, pressure control instrument, air manometer, Pressure gauge and temperature display meter; One end of described body top arranges described high pressure kettle cover in the horizontal direction, the other end of described body top vertically arranges described control appliance, the panel of described control appliance sets gradually described temperature, pressure control instrument, air manometer, Pressure gauge and temperature display meter; Described main body comprises housing, the autoclave body be arranged in described housing, sealing ring, kettle heating tube, cooling pipeline, in cooling water supply connector, kettle, cooling water outlet joint, kettle cool water supply connector, kettle outer cooling water outlet joint, high-pressure water inlet joint, High Pressure Drain joint and high-pressure pump outward and be arranged on water supply connector and the water out adapter of described housing one side wall lower ends in kettle; Described autoclave body top arranges described high pressure kettle cover, arranges described sealing ring between described high pressure kettle cover and autoclave body, and described sealing ring is close to the inwall of described autoclave body upper end; The inwall of described autoclave body lower end is arranged some described kettle heating tubes; Medial surface bottom described autoclave body is arranged described in some inverse u shapes and cool pipeline, the lateral surface bottom described autoclave body is arranged in some described kettlies and cool cooling water outlet joint in water supply connector and kettle; The one end cooling pipeline described in inverse u shape with cool water supply connector in described kettle and be connected, the other end cooling pipeline described in inverse u shape is connected with cooling water outlet joint in described kettle; The outer wall of described autoclave body is arranged with described cooling pipeline and heat insulation layer, the bottom of described autoclave body one sidewall and top arrange described kettle respectively and cool water supply connector and the outer cooling water outlet joint of kettle outward, and described kettle is cooled water supply connector outward and is connected by the outer cooling water outlet joint of described cooling pipeline and described kettle; Each described kettle interior cooling water supply connector cools water supply connector outward with kettle and is connected with described water supply connector respectively with parallel form, and in each described kettle, cooling water outlet joint is connected with described water out adapter with parallel form respectively with the outer cooling water outlet joint of kettle; The upper and lower of described another sidewall of autoclave body arranges described high-pressure water inlet joint and High Pressure Drain joint respectively, described high-pressure water inlet joint is connected with described water supply connector by back with water inlet line and described high-pressure pump, and described High Pressure Drain joint is connected with described water out adapter by flowing line.
The pipeline that described high-pressure water inlet joint is connected with high-pressure pump is arranged for measuring and showing the high-pressure manometer of described high-pressure pump force value.
Described high pressure kettle cover and autoclave body all adopt nickelic high-temperature alloy steel to make.
Described sealing ring adopts inflation metal " O " V-shaped ring.
A using method for described superhigh temperature hardened oilwell cement curing autoclave, it comprises the following steps: 1) autoclave body is put in oil-well cement die trial, load onto sealing ring, then covers high pressure kettle cover and screws, then tightens high pressure kettle cover with torque spanner; 2) by open temp Stress control instrument after temperature, pressure control instrument setting target temperature and pressure, control appliance controls water supply connector, high-pressure pump and high-pressure water inlet joint to water filling in autoclave body according to the force value of setting, and high-pressure manometer is measured and shown the force value of high-pressure pump; 3) to the energising of kettle heating tube, control appliance controls kettle heating tube according to the target temperature of setting and heats in autoclave body, carries out maintenance to oil-well cement die trial; Air manometer, Pressure gauge and temperature display meter show air pressure value, actual pressure value and temperature value in autoclave body respectively; 4) after oil-well cement die trial reaches curing age, according to the temperature value in the autoclave body of temperature display meter display, control appliance controls cooling water supply connector in water supply connector and kettle and inject cooling water in the inverse u shape cooling pipeline in autoclave body, and cooling water returns drainage joint by cooling water outlet joint in inverse u shape cooling pipeline and kettle; Control appliance control water supply connector and kettle cool outward water supply connector on autoclave body outer wall around cooling pipeline in inject cooling water, cooling water by cooling pipeline and kettle outward cooling water outlet joint return drainage joint; By above two cooling water circulations, complete the cooling to autoclave body; 5) air pressure value in the autoclave body shown respectively according to air manometer and Pressure gauge temperature and actual pressure value, control appliance controls High Pressure Drain joint, flowing line and drainage joint and is discharged by water in autoclave body, and the pressure slow release in autoclave body is fallen; 6) open high pressure kettle cover, take out oil-well cement die trial.
The present invention is owing to taking above technical scheme, and it has the following advantages: 1, the present invention owing to arranging kettle heating tube in autoclave body, and kettle heating tube can make temperature in autoclave body reach the superhigh temperature of 450 DEG C; On the top of autoclave body one sidewall, high-pressure water inlet joint is set, one end of high-pressure water inlet joint is connected with water supply connector by back with water inlet line and high-pressure pump, autoclave body pressure can be made to reach 40MPa by high-pressure pump, therefore adopt the present invention can simulate the wellbore environment of thermal production well well and the requirement of Thermal Production Well Cementing simulated experiment can be met.2, the present invention is owing to arranging control appliance at body top, the panel of control appliance sets gradually temperature, pressure control instrument, air manometer, Pressure gauge and temperature display meter, by temperature, pressure control instrument setting target temperature and pressure, shown the air pressure value in main body, actual pressure value and temperature value respectively by air manometer, Pressure gauge and temperature display meter, therefore the present invention is easy to operate.3, the present invention is owing to adopting high pressure kettle cover and sealing ring to seal autoclave body and adopting kettle heating tube to heat in autoclave body, and therefore adopting the present invention temperature can be elevated to rapidly, experiment is temperature required and temperature stability is high.Based on above advantage, the present invention can be widely used in the maintenance of hardened oilwell cement.
Accompanying drawing explanation
Fig. 1 is the structural representation of superhigh temperature hardened oilwell cement curing autoclave of the present invention
Fig. 2 is the internal structure schematic diagram of superhigh temperature hardened oilwell cement curing autoclave of the present invention
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1 and Figure 2, superhigh temperature hardened oilwell cement curing autoclave of the present invention comprises main body 1, high pressure kettle cover 2, control appliance 3, temperature, pressure control instrument 4, air manometer 5, Pressure gauge 6 and temperature display meter 7.Wherein, the one end on main body 1 top arranges high pressure kettle cover 2 in the horizontal direction, the other end on main body 1 top vertically arranges control appliance 3, the panel of control appliance 3 sets gradually temperature, pressure control instrument 4, air manometer 5, Pressure gauge 6 and temperature display meter 7.
Main body 1 comprises housing 8, the autoclave body 9 be arranged in housing 8, sealing ring 10, kettle heating tube 11, cooling pipeline 12, in cooling water supply connector 13, kettle, cooling water outlet joint 14, kettle cool water supply connector 15, kettle outer cooling water outlet joint 16, high-pressure water inlet joint 17, High Pressure Drain joint 18 and high-pressure pump 19 outward and be arranged on water supply connector 20 and the water out adapter 21 of housing 8 one side wall lower ends in kettle.Autoclave body 9 top arranges high pressure kettle cover 2, arranges sealing ring 10 between high pressure kettle cover 2 and autoclave body 9, and sealing ring 10 is close to the inwall of autoclave body 9 upper end.The inwall of autoclave body 9 lower end arranges some kettle heating tubes 11, and kettle heating tube 11 can make temperature in autoclave body 9 reach the superhigh temperature of 450 DEG C.
Medial surface bottom autoclave body 9 is arranged some inverse u shapes cooling pipeline 12, the lateral surface bottom autoclave body 9 is arranged in some kettlies and cool cooling water outlet joint 14 in water supply connector 13 and kettle; Cool water supply connector 13 in one end and the kettle of inverse u shape cooling pipeline 12 to be connected, the other end that inverse u shape cools pipeline 12 is connected with cooling water outlet joint 14 in kettle.The outer wall of autoclave body 9 is arranged with cooling pipeline 12 and heat insulation layer (not shown), the bottom of autoclave body 9 one sidewall and top arrange kettle respectively and cool water supply connector 15 and the outer cooling water outlet joint 16 of kettle outward, and kettle is cooled water supply connector 15 outward and is connected by the outer cooling water outlet joint 16 of cooling pipeline 12 and kettle.Each kettle interior cooling water supply connector 13 cools water supply connector 15 outward with kettle and is connected with water supply connector 20 respectively with parallel form, and in each kettle, cooling water outlet joint 14 is connected with water out adapter 21 with parallel form respectively with the outer cooling water outlet joint 16 of kettle.
The upper and lower of another sidewall of autoclave body 9 arranges high-pressure water inlet joint 17 and High Pressure Drain joint 18 respectively, high-pressure water inlet joint 17 is connected with water supply connector 20 by back with water inlet line and high-pressure pump 19, and High Pressure Drain joint 18 is connected with water out adapter 21 by flowing line.
In above-described embodiment, the back with water inlet line that high-pressure water inlet joint 17 is connected with high-pressure pump 19 arranges high-pressure manometer 22, for measuring and showing the force value of high-pressure pump 19.
In above-described embodiment, high pressure kettle cover 2 and autoclave body 9 all adopt nickelic high-temperature alloy steel to make, this nickelic high temperature alloy Steel material has good heat endurance, high-temperature and durable, wearability and red hardness, there is excellent anti-rapid heat cycle and high temperature oxidation resistance simultaneously, there is when temperature 600 DEG C the higher combination property good from strengthening etc.
In above-described embodiment, sealing ring 10 is inflation metal " O " V-shaped ring, and in high temperature environments, in sealing ring 10, the softening sealing effectiveness that makes of gas expansion and seal ring material is more reliable.
When adopting superhigh temperature hardened oilwell cement curing autoclave of the present invention to test, it specifically comprises the following steps:
1) autoclave body 9 is put in oil-well cement die trial, load onto sealing ring 10, then cover high pressure kettle cover 2 and screw, then tighten high pressure kettle cover 2 with torque spanner.
2) open temp Stress control instrument 4 after target temperature and pressure is set by temperature, pressure control instrument 4, control appliance 3 controls water supply connector 20, high-pressure pump 19 and high-pressure water inlet joint 17 to water filling in autoclave body 9 according to the force value of setting, and high-pressure manometer 22 is measured and shown the force value of high-pressure pump 19.
3) be energized to kettle heating tube 11, control appliance 3 controls kettle heating tube 11 to heating in autoclave body 9 according to the target temperature of setting, carries out maintenance to oil-well cement die trial; Air pressure value, actual pressure value and the temperature value in autoclave body 9 is shown respectively by air manometer 5, Pressure gauge 6 and temperature display meter 7.
4) after oil-well cement die trial reaches curing age, according to the temperature value in the autoclave body 9 that temperature display meter 7 shows, control appliance 3 controls cooling water supply connector 13 in water supply connector 20 and kettle and inject cooling water in the inverse u shape cooling pipeline 12 in autoclave body 9, and cooling water returns drainage joint 21 by cooling water outlet joint 14 in inverse u shape cooling pipeline 12 and kettle; Control appliance 3 control water supply connector 20 and kettle cool outward water supply connector 15 on autoclave body 9 outer wall around cooling pipeline 12 in inject cooling water, cooling water returns drainage joint 21 by cooling pipeline 12 and the outer cooling water outlet joint 16 of kettle.By above two cooling water circulations, complete the cooling to autoclave body 9.
5) air pressure value in the autoclave body 9 shown respectively according to air manometer 5 and Pressure gauge 6 temperature and actual pressure value, control appliance 3 controls High Pressure Drain joint 18, flowing line and drainage joint 21 and is discharged by water in autoclave body 9, and the pressure slow release in autoclave body 9 is fallen.
6) open high pressure kettle cover 2, take out oil-well cement die trial.
The various embodiments described above are only for illustration of the present invention; wherein the structure of each parts, connected mode and method step etc. all can change to some extent; every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.

Claims (1)

1. a using method for superhigh temperature hardened oilwell cement curing autoclave, is characterized in that: described superhigh temperature hardened oilwell cement curing autoclave comprises main body, high pressure kettle cover, control appliance, temperature, pressure control instrument, air manometer, Pressure gauge and temperature display meter; One end of described body top arranges described high pressure kettle cover in the horizontal direction, the other end of described body top vertically arranges described control appliance, the panel of described control appliance sets gradually described temperature, pressure control instrument, air manometer, Pressure gauge and temperature display meter; Described main body comprises housing, the autoclave body be arranged in described housing, sealing ring, kettle heating tube, cooling pipeline, in cooling water supply connector, kettle, cooling water outlet joint, kettle cool water supply connector, kettle outer cooling water outlet joint, high-pressure water inlet joint, High Pressure Drain joint and high-pressure pump outward and be arranged on water supply connector and the water out adapter of described housing one side wall lower ends in kettle; Described autoclave body top arranges described high pressure kettle cover, arranges described sealing ring between described high pressure kettle cover and autoclave body, and described sealing ring is close to the inwall of described autoclave body upper end; The inwall of described autoclave body lower end is arranged some described kettle heating tubes; Medial surface bottom described autoclave body is arranged described in some inverse u shapes and cool pipeline, the lateral surface bottom described autoclave body is arranged in some described kettlies and cool cooling water outlet joint in water supply connector and kettle; The one end cooling pipeline described in inverse u shape with cool water supply connector in described kettle and be connected, the other end cooling pipeline described in inverse u shape is connected with cooling water outlet joint in described kettle; The outer wall of described autoclave body is arranged with described cooling pipeline and heat insulation layer, the bottom of described autoclave body one sidewall and top arrange described kettle respectively and cool water supply connector and the outer cooling water outlet joint of kettle outward, and described kettle is cooled water supply connector outward and is connected by the outer cooling water outlet joint of described cooling pipeline and described kettle; Each described kettle interior cooling water supply connector cools water supply connector outward with kettle and is connected with described water supply connector respectively with parallel form, and in each described kettle, cooling water outlet joint is connected with described water out adapter with parallel form respectively with the outer cooling water outlet joint of kettle; The upper and lower of described another sidewall of autoclave body arranges described high-pressure water inlet joint and High Pressure Drain joint respectively, described high-pressure water inlet joint is connected with described water supply connector by back with water inlet line and described high-pressure pump, and described High Pressure Drain joint is connected with described water out adapter by flowing line;
The pipeline that described high-pressure water inlet joint is connected with high-pressure pump is arranged for measuring and showing the high-pressure manometer of described high-pressure pump force value;
Described high pressure kettle cover and autoclave body all adopt nickelic high-temperature alloy steel to make;
Described sealing ring adopts inflation metal " O " V-shaped ring;
Described using method comprises the following steps:
1) autoclave body is put in oil-well cement die trial, load onto sealing ring, then cover high pressure kettle cover and screw, then tighten high pressure kettle cover with torque spanner;
2) by open temp Stress control instrument after temperature, pressure control instrument setting target temperature and pressure, control appliance controls water supply connector, high-pressure pump and high-pressure water inlet joint to water filling in autoclave body according to the force value of setting, and high-pressure manometer is measured and shown the force value of high-pressure pump;
3) to the energising of kettle heating tube, control appliance controls kettle heating tube according to the target temperature of setting and heats in autoclave body, carries out maintenance to oil-well cement die trial; Air manometer, Pressure gauge and temperature display meter show air pressure value, actual pressure value and temperature value in autoclave body respectively;
4) after oil-well cement die trial reaches curing age, according to the temperature value in the autoclave body of temperature display meter display, control appliance controls cooling water supply connector in water supply connector and kettle and inject cooling water in the inverse u shape cooling pipeline in autoclave body, and cooling water returns drainage joint by cooling water outlet joint in inverse u shape cooling pipeline and kettle; Control appliance control water supply connector and kettle cool outward water supply connector on autoclave body outer wall around cooling pipeline in inject cooling water, cooling water by cooling pipeline and kettle outward cooling water outlet joint return drainage joint; By above two cooling water circulations, complete the cooling to autoclave body;
5) air pressure value in the autoclave body shown respectively according to air manometer and Pressure gauge temperature and actual pressure value, control appliance controls High Pressure Drain joint, flowing line and drainage joint and is discharged by water in autoclave body, and the pressure slow release in autoclave body is fallen;
6) open high pressure kettle cover, take out oil-well cement die trial.
CN201410286887.5A 2014-06-24 2014-06-24 A kind of superhigh temperature hardened oilwell cement curing autoclave and using method thereof Active CN104070596B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106042160A (en) * 2016-05-18 2016-10-26 中国地质大学(武汉) Variable-temperature variable-pressure curing device for well cementing slurry test mold
CN111300617A (en) * 2020-02-19 2020-06-19 中海石油(中国)有限公司 High-temperature and high-pressure cement stone curing device and cement stone preparation method

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CN103317595A (en) * 2013-07-19 2013-09-25 四川嘉华企业(集团)股份有限公司 Oil well cement maintenance kettle
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FI68255B (en) * 1981-05-05 1985-04-30 Inst Khlororg Sinteza Akad Nau Foerfarande och anordning foer framstaellning av polyfenoler
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CN201555465U (en) * 2009-10-30 2010-08-18 淮南舜化机械制造有限公司 Still kettle waste gas condensate water recycling device
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