CN201795790U - Simulation test machine for testing thermal deformation and thermal stress of deepwater tubing strings - Google Patents

Simulation test machine for testing thermal deformation and thermal stress of deepwater tubing strings Download PDF

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Publication number
CN201795790U
CN201795790U CN2010202929679U CN201020292967U CN201795790U CN 201795790 U CN201795790 U CN 201795790U CN 2010202929679 U CN2010202929679 U CN 2010202929679U CN 201020292967 U CN201020292967 U CN 201020292967U CN 201795790 U CN201795790 U CN 201795790U
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oil pipe
test specimen
oil
test piece
pipe test
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张来斌
耿亚楠
樊建春
曹砚锋
刘书杰
王平双
温东
姜明明
薛鲁宁
马洪刚
李明朝
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China University of Petroleum Beijing
China National Offshore Oil Corp CNOOC
CNOOC Research Institute Co Ltd
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China University of Petroleum Beijing
China National Offshore Oil Corp CNOOC
CNOOC Research Center
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Abstract

The utility model relates to a simulation test machine for testing thermal deformation and thermal stress of a deep water oil string, which comprises a device main body, an oil supply device and a water supply device, wherein the device main body comprises a plexiglass tube, an oil tube test piece is arranged in the plexiglass tube, sealing covers are arranged at two ends of the plexiglass tube for sealing, flowing water which can control the temperature and is in the reverse direction of the flowing direction of oil in the oil tube test piece is introduced into an annular space of the plexiglass tube and the oil tube test piece, and the oil tube test piece is connected with the oil supply device after penetrating the sealing covers. When the thermal deformation is tested, the oil tube test piece and the sealing cover at one end are in static sealing, the oil tube test piece and the sealing cover at the other end are in dynamic sealing, and a temperature sensor and a displacement sensor are arranged on the oil tube test piece; when the thermal stress is tested, the oil tube test piece is in static sealing with the sealing covers at two ends, and the temperature sensor and a strain sensor are arranged on the oil tube test piece. The device can measure the deformation and the stress of the string in any size, material and temperature difference, thus providing more accurate guarantee for practical applications.

Description

测试深水油管柱热变形、热应力的模拟试验机 Simulation test machine for testing thermal deformation and thermal stress of deepwater tubing strings

技术领域technical field

本实用新型涉及一种模拟管形件变形行为的试验装置,特别是关于一种模拟深水环境下,测试油管柱热变形、热应力的模拟试验机。The utility model relates to a test device for simulating the deformation behavior of tubular parts, in particular to a simulation test machine for testing the thermal deformation and thermal stress of oil pipe strings in a simulated deep water environment.

背景技术Background technique

在深水油气井测试作业中,普遍存在的异常高温问题会导致管柱破坏、封隔器失效、控制头上移、井口上升等作业事故,对海洋石油生产造成严重的影响。由于作业中的油管柱内外壁存有较大温差,以及目前对不同温差、材质、尺寸油管柱热变形规律研究还不够深入,因此研究不同温差、材质、尺寸油管柱热变形更具有应用价值和实际意义。In deepwater oil and gas well testing operations, the ubiquitous abnormal high temperature problems will lead to operational accidents such as pipe string damage, packer failure, control head upward movement, and wellhead elevation, which will have a serious impact on offshore oil production. Since there is a large temperature difference between the inner and outer walls of the tubing string during operation, and the current research on the thermal deformation of tubing strings with different temperature differences, materials, and sizes is not deep enough, the study of thermal deformation of tubing strings with different temperature differences, materials, and sizes is more valuable and valuable. practical meaning.

目前,公知的测量方法和测量装置都是用于材料线膨胀系数的测量,用它们直接测量油管柱的热变形存在以下几个方面的问题:1、限制了被测对象的形状与尺寸大小:被测对象的结构都是以国家标准中材料线膨胀系数测定规程中的标准试样,即最小长度为25±0.1mm,径向尺寸在3~10mm之间的细长杆件为依据设计的,这些专用的膨胀测量仪不适于对复杂形状的机械零件进行测量;2、测量温度范围过宽:对于油管柱热变形的测量来说,因其工作时的温度变化范围不大,用测控温度范围很宽的测量仪器不能实现高精度测量;3、测量的方向单一;4、不能充分的模拟油管柱的工作环境。At present, the known measuring methods and measuring devices are all used for the measurement of the linear expansion coefficient of materials, and there are the following problems in directly measuring the thermal deformation of the tubing string with them: 1. The shape and size of the measured object are limited: The structure of the measured object is designed on the basis of the standard sample in the national standard for the determination of the material linear expansion coefficient, that is, a slender rod with a minimum length of 25±0.1mm and a radial dimension between 3 and 10mm. , these special-purpose dilatometers are not suitable for measuring mechanical parts with complex shapes; 2. The measurement temperature range is too wide: for the measurement of the thermal deformation of the tubing string, because the temperature range during operation is not large, the measurement and control temperature Measurement instruments with a wide range cannot achieve high-precision measurement; 3. The direction of measurement is single; 4. The working environment of the tubing string cannot be fully simulated.

因此,本领域迫切需要一种能够充分模拟深水环境下油管柱热变形的测量装置来解决上述问题。Therefore, there is an urgent need in the field for a measuring device capable of fully simulating thermal deformation of tubing strings in deep water environments to solve the above problems.

发明内容Contents of the invention

针对上述问题,本实用新型目的在于弥补现有的热变形试验装置的不足,提供一种能够测试不同内外温差、不同材质、不同尺寸条件下深水油管柱热变形、热应力的模拟试验机。In view of the above problems, the purpose of this utility model is to make up for the deficiencies of the existing thermal deformation test devices, and provide a simulation test machine capable of testing the thermal deformation and thermal stress of deep-water tubing strings under different internal and external temperature differences, different materials, and different sizes.

为实现上述目的,本实用新型采取以下技术方案:一种测试深水油管柱热变形的模拟试验机,包括装置主体、供油设备和供水设备,其特征在于:所述装置主体包括一有机玻璃管,在有机玻璃管中内置一油管试件,有机玻璃管的两端有密封盖密封,在有机玻璃管与油管试件的环形空间中通入温度可控的、与油管试件内油的流动方向相反的流动水;所述油管试件穿过所述密封盖与供油设备连接,所述油管试件与一端密封盖之间为静密封,与另一端密封盖之间为动密封,在所述油管试件上设置有温度传感器和位移传感器。此装置中所述油管试件与另一端密封盖可通过法兰接头连接,所述法兰接头上设置有导向带和O型圈组合密封。此处温度传感器可为多个,通过螺钉或磁铁间隔贴设在所述油管试件的外表。所述位移传感器设置在油管试件的动密封端。In order to achieve the above purpose, the utility model adopts the following technical solutions: a simulation test machine for testing the thermal deformation of deep water tubing strings, including the main body of the device, oil supply equipment and water supply equipment, characterized in that the main body of the device includes a plexiglass tube , an oil pipe test piece is built in the plexiglass tube, and the two ends of the plexiglass tube are sealed with sealing caps, and a temperature-controllable flow of oil in the oil pipe test piece is introduced into the annular space between the plexiglass tube and the oil pipe test piece. Flowing water in the opposite direction; the oil pipe test piece passes through the sealing cover and is connected to the oil supply equipment, the oil pipe test piece is statically sealed with the sealing cover at one end, and is dynamically sealed with the sealing cover at the other end. The oil pipe test piece is provided with a temperature sensor and a displacement sensor. In this device, the oil pipe test piece and the sealing cover at the other end can be connected through a flange joint, and the flange joint is provided with a combined seal of a guide belt and an O-ring. Here, there may be multiple temperature sensors, which are attached to the surface of the oil pipe test piece at intervals through screws or magnets. The displacement sensor is arranged at the dynamic sealing end of the oil pipe test piece.

一种测试深水油管柱热应力的模拟试验机,包括装置主体、供油设备和供水设备,其特征在于:所述装置主体包括一有机玻璃管,在有机玻璃管中内置一油管试件,有机玻璃管的两端有密封盖密封,在有机玻璃管与油管试件的环形空间中通入温度可控的、与油管试件内油的流动方向相反的流动水;所述油管试件穿过所述密封盖与供油设备连接,所述油管试件与两密封盖之间为静密封,在所述油管试件上设置有温度传感器和应变传感器。此装置中所述温度传感器也为多个,通过螺钉或磁铁间隔贴设在油管试件的外表;所述应力传感器为多个,也通过螺钉或磁铁间隔贴设在油管试件的外表。A simulation testing machine for testing the thermal stress of a deep-water oil pipe string, including a device main body, oil supply equipment and water supply equipment, characterized in that: the device main body includes a plexiglass tube, and an oil pipe test piece is built in the plexiglass tube. Both ends of the glass tube are sealed with sealing caps, and flowing water with controllable temperature and opposite to the flow direction of the oil in the oil tube test piece is introduced into the annular space between the plexiglass tube and the oil tube test piece; the oil tube test piece passes through The sealing cover is connected with the oil supply equipment, the oil pipe test piece is statically sealed with the two sealing covers, and a temperature sensor and a strain sensor are arranged on the oil pipe test piece. In this device, there are also multiple temperature sensors, which are attached to the surface of the oil pipe test piece at intervals through screws or magnets; there are multiple stress sensors, which are also attached to the surface of the oil pipe test piece at intervals through screws or magnets.

本实用新型由于采取以上技术方案,其具有以下优点:1、本实用新型设置一密封的外管-有机玻璃管来承装模拟海水,模拟水环境;在外管中设置一通油的油管试件,来模拟油管在水环境中的状态。2、将油管试件两端固定,在油管外表设置应力传感器、温度传感器,通过控制水温、油温,可实时测定油管的热应力情况。3、将油管试件一端固定,一端设置为游动端,在游动端设置位移传感器,通过控制水温、油温,可实时测定油管的热变形,尤其是轴向变形情况。4、这种模拟装置的主体长度及粗度可以随意改变,也即油管试件可以模拟各种尺寸,从这一点可以实现任何尺寸管柱的变形、应力测量功能。5、因为外部水环境基质为普通的水,所以油管的材质要求远不及海水的要求高,可以试验更多种材质的油管,这也大大方便了试验的测量。总之,装置可以对任何尺寸,材质,温差的管柱的变形、应力进行测量,为实际应用提供了更加准确的保障。Because the utility model adopts the above technical scheme, it has the following advantages: 1. The utility model is provided with a sealed outer tube-plexiglass tube to hold simulated seawater and simulate the water environment; To simulate the state of the oil pipe in the water environment. 2. Fix both ends of the oil pipe test piece, and install stress sensors and temperature sensors on the outer surface of the oil pipe. By controlling the water temperature and oil temperature, the thermal stress of the oil pipe can be measured in real time. 3. One end of the oil pipe test piece is fixed, and the other end is set as a floating end. A displacement sensor is installed at the floating end. By controlling the water temperature and oil temperature, the thermal deformation of the oil pipe can be measured in real time, especially the axial deformation. 4. The length and thickness of the main body of this simulation device can be changed at will, that is, the oil pipe test piece can simulate various sizes. From this point, the deformation and stress measurement functions of any size pipe string can be realized. 5. Because the external water environment matrix is ordinary water, the requirements for the material of the tubing are far less than that of seawater, and more tubing materials can be tested, which greatly facilitates the measurement of the test. In short, the device can measure the deformation and stress of pipe strings of any size, material, and temperature difference, providing a more accurate guarantee for practical applications.

附图说明Description of drawings

图1是本实用新型的工作原理图Fig. 1 is a working principle diagram of the utility model

图2是本实用新型的实体结构示意图Fig. 2 is the entity structure schematic diagram of the present utility model

图3是油管试件游动端的结构示意图Figure 3 is a structural schematic diagram of the floating end of the tubing test piece

具体实施方式Detailed ways

下面结合附图和实施例,对本实用新型进行详细的说明。Below in conjunction with accompanying drawing and embodiment, the utility model is described in detail.

本实用新型提供一种在不同内外温差、不同材质、不同尺寸条件下,测量深水油管柱热变形、热应力,尤其是能识别油管柱轴向热变形量的深水油管柱热变形模拟试验机。The utility model provides a deep-water oil pipe string thermal deformation simulation testing machine which can measure the thermal deformation and thermal stress of the deep-water oil pipe string under the conditions of different internal and external temperature differences, different materials, and different sizes, and can especially identify the axial thermal deformation of the oil pipe string.

该试验机主要包括循环、支撑、控制和检测等重要组成系统,通过组合实现各自的功能。如图1所示,它主要包括装置主体1、供油设备2、供水设备3,其中心原理是:装置主体1模拟油管在海水中的状态,供油设备2向油管试件中通油,供水设备3在油管周围制造水环境。通过控制油温和水温来调节油管内外的温差;在油管周围设置各种传感器以测量油管的变形特性。在供油及供水系统中设置各种阀、泵及流量计,控制流体的流向及流量。The testing machine mainly includes important component systems such as circulation, support, control and detection, and realizes their respective functions through combination. As shown in Figure 1, it mainly includes the main body of the device 1, oil supply equipment 2, and water supply equipment 3. The central principle is: the main body of the device 1 simulates the state of the oil pipe in seawater, and the oil supply equipment 2 passes oil into the oil pipe test piece. The water supply equipment 3 creates a water environment around the oil pipe. Adjust the temperature difference inside and outside the oil pipe by controlling the oil temperature and water temperature; set various sensors around the oil pipe to measure the deformation characteristics of the oil pipe. Various valves, pumps and flow meters are installed in the oil supply and water supply systems to control the flow direction and flow rate of the fluid.

在具体实施例中,如图1、2所示,装置主体1包括一有机玻璃管4,在有机玻璃管4中内置油管试件5。有机玻璃管4的两端有密封盖6、7密封,油管试件5穿过密封盖6、7与外部供油设备的管路8连接。油管过长时,可在中间部位设置支撑9,以避免因油管试件过长破坏两端密封,也方便油管试件的装卸。通过密封盖6、7还向外连接有与供水设备3相连的管路10,由供水设备3向有机玻璃管4与油管试件5之间的环空空间通入温度可控的、与油管试件5内油流动方向相反的流动水来模拟海水。In a specific embodiment, as shown in FIGS. 1 and 2 , the device main body 1 includes a plexiglass tube 4 , and an oil pipe test piece 5 is built in the plexiglass tube 4 . Both ends of the plexiglass tube 4 are sealed with sealing covers 6 and 7, and the oil pipe test piece 5 passes through the sealing covers 6 and 7 to connect with the pipeline 8 of the external oil supply equipment. When the oil pipe is too long, support 9 can be set at the middle part, so as to avoid damaging the seals at both ends due to the excessive length of the oil pipe test piece, and facilitate the loading and unloading of the oil pipe test piece. The pipeline 10 connected to the water supply equipment 3 is also connected to the outside through the sealing covers 6 and 7, and the temperature-controllable oil pipe is connected to the annular space between the plexiglass tube 4 and the oil pipe test piece 5 from the water supply equipment 3. The flowing water in the opposite direction of oil flow in specimen 5 simulates seawater.

在进行热变形和热应力模拟试验时,油管试件5与密封盖6、7的密封形式是有区别的。在热应力测量试验中,油管试件5与密封盖6、7的密封均为静密封,可采取的形式有密封垫密封或粘接密封。在热变形测量试验中,油管试件5在一端与密封盖(如图中所示的密封盖6)的密封为静密封,而油管试件5的另一端须为游动端,即与另一端密封盖(如密封盖7)之间为接触性动密封,以保证油管试件5的热变形量。在某些实施例中,油管试件5的游动端焊接一法兰接头11,如图3所示,法兰接头11上设置导向带12和O型圈13组合密封。When performing thermal deformation and thermal stress simulation tests, the sealing forms of the oil pipe test piece 5 and the sealing covers 6 and 7 are different. In the thermal stress measurement test, the seals between the oil pipe test piece 5 and the sealing covers 6 and 7 are all static seals, and the seals that can be adopted include gasket seals or adhesive seals. In the thermal deformation measurement test, the seal between the oil pipe test piece 5 and the sealing cover (seal cover 6 shown in the figure) at one end is a static seal, while the other end of the oil pipe test piece 5 must be a floating end, that is, it is connected to the other end. A contact dynamic seal is used between the sealing covers (such as the sealing cover 7 ) at one end to ensure the thermal deformation of the oil pipe test piece 5 . In some embodiments, a flange joint 11 is welded to the floating end of the oil pipe test piece 5, as shown in FIG.

当进行热应力测量试验时,需要在油管试件5的外表通过螺钉或磁铁隔段贴设多个温度检测传感器14及多个应力检测传感器15。When performing a thermal stress measurement test, it is necessary to attach a plurality of temperature detection sensors 14 and a plurality of stress detection sensors 15 on the outer surface of the oil pipe test piece 5 through screws or magnet partitions.

当进行热变形测量试验时,需要在油管试件5的外表通过螺钉或磁铁隔段贴设多个温度检测传感器14,以及在油管试件5的游动端设置一位移检测传感器16。将位移检测传感器16布置在游动端,可以测量在不同温差条件下,有机玻璃管、以及油管相对于有机玻璃管的变形量。When carrying out the thermal deformation measurement test, it is necessary to attach a plurality of temperature detection sensors 14 on the surface of the oil pipe test piece 5 through screws or magnet partitions, and to arrange a displacement detection sensor 16 at the floating end of the oil pipe test piece 5 . Arranging the displacement detection sensor 16 at the floating end can measure the deformation of the plexiglass tube and the oil tube relative to the plexiglass tube under different temperature differences.

本发明中油管试件5可以选择不同尺寸、不同材质的试件进行试验。In the present invention, the oil pipe test piece 5 can select test pieces with different sizes and different materials for testing.

在有机玻璃管4底部设置主体支架17,以减少有机玻璃管4应力集中而导致的损害,保证试验设备的安全可靠性。中间支撑9可以保证试验试件安装和拆卸方便,减少因为油管试件5向下的力对两端密封性能的影响,提高了油管试件5的安装精度。A main frame 17 is provided at the bottom of the plexiglass tube 4 to reduce damage caused by stress concentration of the plexiglass tube 4 and ensure the safety and reliability of the test equipment. The middle support 9 can ensure the convenience of installation and disassembly of the test piece, reduce the influence of the downward force of the oil pipe test piece 5 on the sealing performance of both ends, and improve the installation accuracy of the oil pipe test piece 5 .

在上述供油设备2和供水设备3中,都相应设置有温度计18、流量计19、泵20、开关阀21、单向阀22、调节阀23等,这些都属于流体设备常规配备的器件,属常规技术,在此不做过多介绍。在有机玻璃管4的底部还连接出一泄水管,泄水管连接到水池24,供水设备停止工作后,把设备中的水排放到水池中,可以避免设备的腐蚀以及水的浪费;水池中的水不会脏,可以在下次试验时再次利用或者作为其他用途。In the above-mentioned oil supply equipment 2 and water supply equipment 3, a thermometer 18, a flow meter 19, a pump 20, an on-off valve 21, a one-way valve 22, a regulating valve 23, etc. are correspondingly provided, and these are all conventionally equipped devices of fluid equipment. It is a conventional technology, so it will not be introduced too much here. Also connect a drainpipe at the bottom of the plexiglass tube 4, the drainpipe is connected to the pool 24, and after the water supply equipment stops working, the water in the equipment is discharged into the pool, which can avoid the corrosion of the equipment and the waste of water; The water will not get dirty and can be reused for the next experiment or for other purposes.

通过供油设备2向油管试件5内部通入温度设定好的高温油,通过供水设备3向有机玻璃管4中通入与油反向的模拟海水,试验过程中温度、应力、变形量等参数的测量,可以通过计算机控制,由分别安装在各个部位的传感器进行实时采集。Through the oil supply equipment 2, the high-temperature oil with a set temperature is introduced into the oil pipe test piece 5, and the simulated seawater opposite to the oil is introduced into the plexiglass tube 4 through the water supply equipment 3. During the test, the temperature, stress, and deformation The measurement of other parameters can be controlled by a computer, and the sensors installed in each part can be used for real-time collection.

虽然本实用新型已利用前述具体实施例详细揭示,但其并非用以限定本实用新型的保护范围,本领域技术人员在不脱离本实用新型的技术方案前提下,所作的各种改动,均应保护在本实用新型的保护范围之内。Although the utility model has been disclosed in detail by using the aforementioned specific embodiments, it is not used to limit the scope of protection of the utility model, and those skilled in the art shall be responsible for the various changes made without departing from the technical solution of the utility model. Protection is within the protection scope of the present utility model.

Claims (7)

1. simulation test machine of testing the thermal deformation of deep water tubing string, comprise apparatus main body, oil servicing facitities and supply equipment, it is characterized in that: described apparatus main body comprises a plexi-glass tubular, a built-in oil pipe test specimen in plexi-glass tubular, there is gland bonnet sealing at the two ends of plexi-glass tubular, in the annular space of plexi-glass tubular and oil pipe test specimen, feed Controllable Temperature, with the oil pipe test specimen in the oily opposite circulating water of flow direction; Described oil pipe test specimen passes described gland bonnet and is connected with oil servicing facitities, is static seal between a described oil pipe test specimen and the end gland bonnet, and is motive seal between the other end gland bonnet, and described oil pipe test specimen is provided with temperature sensor and displacement transducer.
2. the simulation test machine of test deep water tubing string as claimed in claim 1 thermal deformation is characterized in that: described oil pipe test specimen is connected by bump joint with other end gland bonnet, and described bump joint is provided with guidance tape and O type circle combination sealing.
3. the simulation test machine of test deep water tubing string as claimed in claim 1 thermal deformation is characterized in that: described temperature sensor is a plurality of, is sticked at interval in the appearance of described oil pipe test specimen by screw or magnet.
4. the simulation test machine of test deep water tubing string as claimed in claim 1 thermal deformation is characterized in that: described displacement transducer is arranged on the motive seal end of oil pipe test specimen.
5. simulation test machine of testing deep water tubing string thermal stress, comprise apparatus main body, oil servicing facitities and supply equipment, it is characterized in that: described apparatus main body comprises a plexi-glass tubular, a built-in oil pipe test specimen in plexi-glass tubular, there is gland bonnet sealing at the two ends of plexi-glass tubular, in the annular space of plexi-glass tubular and oil pipe test specimen, feed Controllable Temperature, with the oil pipe test specimen in the oily opposite circulating water of flow direction; Described oil pipe test specimen passes described gland bonnet and is connected with oil servicing facitities, is static seal between described oil pipe test specimen and two gland bonnets, and described oil pipe test specimen is provided with temperature sensor and strain transducer.
6. as a kind of simulation test machine of testing deep water tubing string thermal stress as described in the claim 5, it is characterized in that: described temperature sensor is a plurality of, is sticked at interval in the appearance of oil pipe test specimen by screw or magnet.
7. as a kind of simulation test machine of testing deep water tubing string thermal stress as described in the claim 5, it is characterized in that: described strain gauge is a plurality of, is sticked at interval in the appearance of oil pipe test specimen by screw or magnet.
CN2010202929679U 2010-08-13 2010-08-13 Simulation test machine for testing thermal deformation and thermal stress of deepwater tubing strings Expired - Lifetime CN201795790U (en)

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Cited By (6)

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CN102589990A (en) * 2012-02-20 2012-07-18 中国石油天然气集团公司 Heavy oil thermal recovery casing pipe testing device
CN103132991A (en) * 2013-02-25 2013-06-05 中国海洋石油总公司 Position determining method and position determining device of Christmas tree of marine oil-and-gas field producing platform
CN108120739A (en) * 2018-01-24 2018-06-05 西安理工大学 A kind of thermal deformation measurement device for high-precision machine tool hydrostatic bearing
CN108931369A (en) * 2018-08-23 2018-12-04 中国石油大学(北京) A kind of tape loop temperature test string down-hole simulation experimental provision with pressure
CN109506540A (en) * 2018-09-30 2019-03-22 武汉船用机械有限责任公司 The measuring device and measuring method of oil pipe elongation
CN114428020A (en) * 2020-10-29 2022-05-03 中国石油化工股份有限公司 High temperature resistant polymer and compound oil pipe test evaluation analogue means of fibre

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102589990A (en) * 2012-02-20 2012-07-18 中国石油天然气集团公司 Heavy oil thermal recovery casing pipe testing device
CN103132991A (en) * 2013-02-25 2013-06-05 中国海洋石油总公司 Position determining method and position determining device of Christmas tree of marine oil-and-gas field producing platform
CN103132991B (en) * 2013-02-25 2016-05-25 中国海洋石油总公司 Location determining method and the device of the production tree of marine oil gas field production platform
CN108120739A (en) * 2018-01-24 2018-06-05 西安理工大学 A kind of thermal deformation measurement device for high-precision machine tool hydrostatic bearing
CN108120739B (en) * 2018-01-24 2021-07-20 西安理工大学 A thermal deformation measuring device for high-precision machine tool hydrostatic bearing
CN108931369A (en) * 2018-08-23 2018-12-04 中国石油大学(北京) A kind of tape loop temperature test string down-hole simulation experimental provision with pressure
CN109506540A (en) * 2018-09-30 2019-03-22 武汉船用机械有限责任公司 The measuring device and measuring method of oil pipe elongation
CN114428020A (en) * 2020-10-29 2022-05-03 中国石油化工股份有限公司 High temperature resistant polymer and compound oil pipe test evaluation analogue means of fibre
CN114428020B (en) * 2020-10-29 2024-05-28 中国石油化工股份有限公司 High temperature resistant polymer and fiber composite oil pipe test evaluation simulation device

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