CN204188353U - Packer packing element sealing performance detection device - Google Patents
Packer packing element sealing performance detection device Download PDFInfo
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- CN204188353U CN204188353U CN201420618434.3U CN201420618434U CN204188353U CN 204188353 U CN204188353 U CN 204188353U CN 201420618434 U CN201420618434 U CN 201420618434U CN 204188353 U CN204188353 U CN 204188353U
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- 238000007789 sealing Methods 0.000 title claims abstract description 27
- 238000001514 detection method Methods 0.000 title claims abstract description 8
- 238000012856 packing Methods 0.000 title 1
- 238000007689 inspection Methods 0.000 claims abstract description 45
- 238000010438 heat treatment Methods 0.000 claims description 45
- 238000012360 testing method Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 description 9
- 238000004088 simulation Methods 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
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Abstract
本实用新型公开了一种封隔器胶筒密封性能检测装置，其上端盖和下端盖分别设置在心轴两端，外筒分别与上端盖和下端盖固定连接，心轴外壁上设置有内衬套，外筒内壁上对应内衬套设置有外衬套，内衬套和外衬套之间依次设置有活塞、上通径规、胶筒和下通径规，外筒上设置有第一加压孔、第二观察或加压验封孔和第三加压验封或观察孔，第一加压孔、第二观察或加压验封孔和第三加压验封或观察孔分别与内衬套和外衬套之间的空腔连通，且分别连接到加压系统。本实用新型可以模拟井下温度、压力工况，以及封隔器胶筒工作状态，检测胶筒的密封性能。
The utility model discloses a sealing performance detection device for a packer rubber cylinder. The upper end cover and the lower end cover are respectively arranged at two ends of a mandrel, the outer cylinder is fixedly connected with the upper end cover and the lower end cover respectively, and an inner liner is arranged on the outer wall of the mandrel. The inner wall of the outer cylinder is provided with an outer bushing corresponding to the inner bushing. A piston, an upper diameter gauge, a rubber cylinder and a lower diameter gauge are arranged in sequence between the inner bushing and the outer bushing. The outer cylinder is provided with a first The pressurization hole, the second observation or pressure seal inspection hole and the third pressure seal inspection or observation hole, the first pressurization hole, the second observation or pressure seal inspection hole and the third pressure seal inspection or observation hole respectively It communicates with the cavity between the inner bushing and the outer bushing and is respectively connected to the pressurized system. The utility model can simulate the downhole temperature and pressure working conditions, and the working state of the packer rubber cylinder to detect the sealing performance of the rubber cylinder.
Description
技术领域 technical field
本实用新型涉及一种在地面模拟井下高温高压环境并检测封隔器胶筒密封性能的装置，属于油气井测试领域。 The utility model relates to a device for simulating an underground high-temperature and high-pressure environment on the ground and detecting the sealing performance of a packer rubber cylinder, which belongs to the field of oil and gas well testing.
背景技术 Background technique
封隔器用于油气井测试作业，其主要作用是在井底封隔油管与套管之间的环空。因此要求封隔器本体上的胶筒在高温条件下能承受高压差。为确保封隔器在井下性能可靠，必须在入井之前对胶筒进行高温高压下的密封性能检测。 The packer is used in oil and gas well testing operations, and its main function is to seal the annulus between the tubing and the casing at the bottom of the hole. Therefore, the rubber cartridge on the packer body is required to withstand high pressure difference under high temperature conditions. In order to ensure the reliable performance of the packer in the downhole, it is necessary to test the sealing performance of the rubber tube under high temperature and high pressure before entering the well.
现有技术中的检测装置较多，例如，中国专利号“201310163818.0”公开的一种压缩式封隔器胶筒的试验检测工具，公开日为 2013-09-11，其包括中心管、解封管和筒形的液缸外套，液缸外套的右端通过筒形的连接环与解封管密封连接，液缸外套与中心管之间形成封闭的环形空腔，环形空腔内设置有筒形的活塞和套设于解封管外的测量环，活塞能够推动挡环、活塞杆和测量环沿中心管的轴线滑动，在活塞与连接环之间，解封管的侧壁设置有通孔。 There are many detection devices in the prior art, for example, a test detection tool for compression packer rubber cylinder disclosed in Chinese Patent No. "201310163818. Tube and cylindrical liquid cylinder casing, the right end of the liquid cylinder casing is sealed and connected with the unsealing pipe through a cylindrical connecting ring, a closed annular cavity is formed between the liquid cylinder casing and the central tube, and a cylindrical cavity is arranged in the annular cavity. The piston and the measuring ring sleeved outside the unsealing tube, the piston can push the retaining ring, the piston rod and the measuring ring to slide along the axis of the central tube, between the piston and the connecting ring, the side wall of the unsealing tube is provided with a through hole .
但目前已有的检测装置普遍存在一些缺陷和使用限制：有的检测装置只能在常温下进行承压检测；有的检测装置只能在常压下进行耐温检测；此外，虽然有采用模拟实验井同时在一定温度和压力条件下的检测封隔器，即在地面按真实井眼尺寸修建一定深度的模拟井，把全尺寸的封隔器下入到模拟井眼中，配合相关设备，完成坐封、验封动作，最后做出封隔性能评估结果，但该类系统有以下缺点：不仅装置体积大、运行能耗高、操作不方便、可检测胶筒的型号少。 However, there are generally some defects and limitations in the existing testing devices: some testing devices can only perform pressure testing at normal temperature; some testing devices can only perform temperature resistance testing at normal pressure; At the same time, test the packer in the experimental well under certain temperature and pressure conditions, that is, build a simulated well at a certain depth on the ground according to the actual borehole size, run a full-scale packer into the simulated borehole, and cooperate with related equipment to complete the test. Setting and checking actions, and finally the evaluation results of the sealing performance, but this type of system has the following disadvantages: not only the device is bulky, the energy consumption is high, the operation is inconvenient, and there are few models of rubber cartridges that can be tested.
发明内容 Contents of the invention
本实用新型的目的在于克服现有技术存在的上述问题，提供一种封隔器胶筒密封性能检测装置。本实用新型可以模拟井下温度、压力工况，以及封隔器胶筒工作状态，检测胶筒的密封性能，适用胶筒尺寸范围更广，解决了传统模拟装置规模大、结构复杂，运行控制难度大的问题。 The purpose of the utility model is to overcome the above-mentioned problems existing in the prior art, and to provide a detection device for the sealing performance of a packer rubber cylinder. The utility model can simulate the downhole temperature and pressure working conditions, and the working state of the packer rubber cylinder, detect the sealing performance of the rubber cylinder, and is applicable to a wider size range of the rubber cylinder, and solves the problem of large scale, complex structure and difficult operation control of the traditional simulation device Big question.
为实现上述目的，本实用新型采用的技术方案如下： In order to achieve the above object, the technical scheme adopted by the utility model is as follows:
一种封隔器胶筒密封性能检测装置，其特征在于：包括上端盖、下端盖、心轴、外筒、加压系统和用于加温控制模拟井下温度环境的加热系统，所述上端盖和下端盖分别设置在心轴两端，外筒分别与上端盖和下端盖固定连接，心轴外壁上设置有内衬套，外筒内壁上对应内衬套设置有外衬套，内衬套和外衬套之间依次设置有活塞、上通径规、胶筒和下通径规，外筒上设置有第一加压孔、第二观察或加压验封孔和第三加压验封或观察孔，第一加压孔、第二观察或加压验封孔和第三加压验封或观察孔分别与内衬套和外衬套之间的空腔连通，且分别连接到加压系统。 A device for detecting the sealing performance of a packer rubber cartridge, characterized in that it includes an upper end cover, a lower end cover, a mandrel, an outer cylinder, a pressurizing system, and a heating system for heating and controlling the simulated downhole temperature environment, the upper end cover and the lower end cap are respectively arranged at both ends of the mandrel, the outer cylinder is fixedly connected with the upper end cap and the lower end cap respectively, an inner bushing is arranged on the outer wall of the mandrel, and an outer bushing is arranged on the inner wall of the outer cylinder corresponding to the inner bushing, and the inner bushing and the lower end cap are respectively arranged. A piston, an upper diameter gauge, a rubber cylinder and a lower diameter gauge are arranged in sequence between the outer bushings, and the outer cylinder is provided with a first pressure hole, a second observation or pressure seal inspection hole and a third pressure seal inspection hole. Or observation hole, the first pressure hole, the second observation or pressure seal inspection hole and the third pressure seal inspection or observation hole communicate with the cavity between the inner bushing and the outer bushing respectively, and are respectively connected to the pressure system.
所述加热系统包括加热套、温度传感器和加热控制器，加热套安装在外筒上，温度传感器设置在加热套上，加热套、温度传感器分别通过电缆线与加热控制器相连。 The heating system includes a heating jacket, a temperature sensor and a heating controller. The heating jacket is installed on the outer cylinder, the temperature sensor is arranged on the heating jacket, and the heating jacket and the temperature sensor are respectively connected to the heating controller through cables.
所述加热套位于第二观察或加压验封孔和第三加压验封或观察孔之间。 The heating jacket is located between the second inspection or pressure seal hole and the third pressure seal or inspection hole.
所述温度传感器的底端与外筒的外壁接触。 The bottom end of the temperature sensor is in contact with the outer wall of the outer cylinder.
所述活塞和上通径规构成一个坐封动力系统，第一加压孔位于上端盖和活塞之间。 The piston and the upper diameter gauge form a setting power system, and the first pressure hole is located between the upper end cover and the piston.
所述第二观察或加压验封孔和第三加压验封或观察孔位于模拟坐封后的胶筒两侧，且第二观察或加压验封孔与上通径规相对应，第三加压验封或观察孔与下通径规相对应。 The second observation or pressurized seal inspection hole and the third pressurized seal inspection or observation hole are located on both sides of the rubber cylinder after simulated setting, and the second observation or pressurized seal inspection hole corresponds to the upper diameter gauge, The third pressurized sealing or observation hole corresponds to the lower diameter gauge.
采用本实用新型的优点在于： The advantage of adopting the utility model is:
一、本实用新型可以模拟井下温度、压力工况，以及封隔器胶筒工作状态，检测胶筒的密封性能，结构简洁、操作简单、适用胶筒尺寸范围更广、运行成本低，解决了传统模拟装置规模大、结构复杂，运行控制难度大的问题。 1. The utility model can simulate the downhole temperature and pressure conditions, and the working state of the packer rubber cylinder, and detect the sealing performance of the rubber cylinder. Traditional simulation devices are large in scale, complex in structure, and difficult to operate and control.
二、本实用新型可通过更换不同尺寸的内外衬套适应不同尺寸的胶筒，主要适用于90-170mm。 2. The utility model can adapt to rubber cartridges of different sizes by replacing inner and outer bushes of different sizes, and is mainly suitable for 90-170mm.
三、本实用新型中，加热套、温度传感器、加热控制器，三者构成一个加热系统，可以实现对外筒及内部空间加热，模拟井下温度环境200℃，并保持长时间温度恒定。 3. In the utility model, the heating jacket, temperature sensor, and heating controller constitute a heating system, which can realize heating of the outer cylinder and the inner space, simulate the underground temperature environment of 200°C, and keep the temperature constant for a long time.
四、本实用新型包括活塞、上通径规，二者构成一个坐封动力系统，液压作为源动力，通过活塞把液压转化为坐封力推挤胶筒实现模拟坐封过程，替代传统的采用大载荷机械力直接加载挤压胶筒模拟坐封过程，结构更简单，系统体积更小。 4. The utility model includes a piston and an upper diameter gauge, both of which constitute a setting power system, hydraulic pressure is used as the source power, and the hydraulic pressure is converted into setting force by the piston to push the rubber cylinder to realize the simulated setting process, replacing the traditional use The large-load mechanical force directly loads the extrusion rubber cylinder to simulate the setting process, the structure is simpler, and the system volume is smaller.
五、本实用新型通过外筒内部设置心轴，把封隔器胶筒安置在模拟装置心轴上，替代传统把整个封隔器安置在模拟井筒内的模拟方式。 5. The utility model installs the packer rubber cylinder on the mandrel of the simulation device by setting the mandrel inside the outer cylinder, replacing the traditional simulation method of placing the entire packer in the simulated wellbore.
综上，本实用新型能够模拟井下200℃的高温环境，并能长时间保持恒温，具有105MPa的工作压力，同时该装置通过更换不同尺寸的内外衬套适应不同尺寸的胶筒，90-170mm，满足了绝大多数封隔器封隔性能评估的需求；同时，系统外径可采用220mm，长度可采用990mm，体积小，操作方便，在高温高压封隔器胶筒性能评估上具有优势，应用前景大。 To sum up, the utility model can simulate the high temperature environment of 200°C underground, and can maintain a constant temperature for a long time, with a working pressure of 105MPa. At the same time, the device adapts to different sizes of rubber cylinders, 90-170mm, by replacing inner and outer bushes of different sizes. It meets the needs of most packer performance evaluations; at the same time, the outer diameter of the system can be 220mm, and the length can be 990mm. It is small in size and easy to operate. It has advantages in the performance evaluation of high-temperature and high-pressure packer rubber cartridges. Great prospects.
附图说明 Description of drawings
图1为本实用新型结构示意图 Fig. 1 is the structural representation of the utility model
图中标记为：1、上端盖，2、下端盖，3、外筒，4、心轴，5、内衬套，6、外衬套，7、活塞，8、上通径规，9、胶筒，10、下通径规，11、加热套，12、温度传感器，13、加热控制器，14、加压系统，15、第一加压孔，16、第二观察或加压验封孔，17、第三加压验封或观察孔。 The marks in the figure are: 1. Upper end cover, 2. Lower end cover, 3. Outer cylinder, 4. Mandrel, 5. Inner bushing, 6. Outer bushing, 7. Piston, 8. Upper diameter gauge, 9. Rubber cartridge, 10, lower diameter gauge, 11, heating jacket, 12, temperature sensor, 13, heating controller, 14, pressure system, 15, first pressure hole, 16, second observation or pressure inspection Hole, 17, the third pressurized seal or observation hole.
具体实施方式 Detailed ways
实施例1 Example 1
一种封隔器胶筒密封性能检测装置，包括上端盖1、下端盖2、心轴4、外筒3、加压系统14和用于加温控制模拟井下温度环境的加热系统，所述上端盖1和下端盖2分别设置在心轴4两端，外筒3分别与上端盖1和下端盖2固定连接，心轴4外壁上设置有内衬套5，外筒3内壁上对应内衬套5设置有外衬套6，内衬套5和外衬套6之间依次设置有活塞7、上通径规8、胶筒9和下通径规10，外筒3上设置有第一加压孔15、第二观察或加压验封孔16和第三加压验封或观察孔17，第一加压孔15、第二观察或加压验封孔16和第三加压验封或观察孔17分别与内衬套5和外衬套6之间的密闭空腔连通，且分别连接到加压系统14。 A device for detecting the sealing performance of a packer rubber cartridge, comprising an upper end cover 1, a lower end cover 2, a mandrel 4, an outer cylinder 3, a pressurizing system 14, and a heating system for temperature control to simulate a downhole temperature environment, the upper end The cover 1 and the lower end cover 2 are respectively arranged at both ends of the mandrel 4, the outer cylinder 3 is fixedly connected with the upper end cover 1 and the lower end cover 2 respectively, the outer wall of the mandrel 4 is provided with an inner bushing 5, and the inner wall of the outer cylinder 3 corresponds to the inner bushing 5 is provided with an outer bushing 6, and between the inner bushing 5 and the outer bushing 6, a piston 7, an upper diameter gauge 8, a rubber cylinder 9 and a lower diameter gauge 10 are arranged in sequence, and the outer cylinder 3 is provided with a first Pressure hole 15, second observation or pressure seal inspection hole 16 and third pressure seal inspection or observation hole 17, first pressure hole 15, second observation or pressure seal inspection hole 16 and third pressure seal inspection Or the viewing holes 17 communicate with the closed cavity between the inner bushing 5 and the outer bushing 6 respectively, and are respectively connected to the pressurized system 14 .
本实施例中，所述加热系统包括加热套11、温度传感器12和加热控制器13，加热套11安装在外筒3上，温度传感器12设置在加热套11上，加热套11、温度传感器12分别通过电缆线与加热控制器13相连。 In this embodiment, the heating system includes a heating jacket 11, a temperature sensor 12 and a heating controller 13, the heating jacket 11 is installed on the outer cylinder 3, the temperature sensor 12 is arranged on the heating jacket 11, and the heating jacket 11 and the temperature sensor 12 are respectively Link to heating controller 13 by cable.
本实施例中，所述加热套11位于第二观察或加压验封孔16和第三加压验封或观察孔17之间。 In this embodiment, the heating jacket 11 is located between the second inspection or pressure inspection hole 16 and the third pressure inspection or inspection hole 17 .
本实施例中，所述温度传感器12的底端与外筒3的外壁接触。 In this embodiment, the bottom end of the temperature sensor 12 is in contact with the outer wall of the outer cylinder 3 .
本实施例中，所述活塞7和上通径规8构成一个坐封动力系统，第一加压孔15位于上端盖1和活塞7之间。 In this embodiment, the piston 7 and the upper gauge 8 constitute a setting power system, and the first pressure hole 15 is located between the upper end cover 1 and the piston 7 .
本实施例中，所述第二观察或加压验封孔16和第三加压验封或观察孔17位于模拟坐封后的胶筒9两侧，且第二观察或加压验封孔16与上通径规8相对应，第三加压验封或观察孔17与下通径规10相对应。 In this embodiment, the second observation or pressurization seal inspection hole 16 and the third pressurization seal inspection or observation hole 17 are located on both sides of the rubber cartridge 9 after simulated setting, and the second observation or pressurization seal inspection hole 16 corresponds to the upper diameter gauge 8, and the third pressurized seal or observation hole 17 corresponds to the lower diameter gauge 10.
本实用新型的工作原理为： The working principle of the utility model is:
加热套11对外筒3及内部进行加温模拟井下温度环境，温度传感器12和加热控制器13对所需模拟的温度进行控制，温度最高达200℃，可达到实际井下温度情况。加压系统14向第一加压孔15加压，压力作用于活塞7上，该过程模拟坐封力推动活塞7和上通径规8向前移动挤压胶筒9，胶筒9受压纵向收缩、径向膨胀，完成坐封，然后关闭第一加压孔15，维持胶筒9的坐封状态。然后加压系统14向第三加压验封或观察孔17加压验封，如果观察到第二观察或加压验封孔16压力未上升，那么胶筒密封性能合格；如果观察到第二观察或加压验封孔16压力上升，那么胶筒密封性能不合格。另外，也可以进行反验封，即加压系统14向第二观察或加压验封孔16加压验封， 第三加压验封或观察孔17作为观察。 The heating jacket 11 heats the outer cylinder 3 and the inside to simulate the downhole temperature environment, and the temperature sensor 12 and the heating controller 13 control the required simulated temperature. The maximum temperature is 200°C, which can reach the actual downhole temperature. The pressurizing system 14 pressurizes the first pressurizing hole 15, and the pressure acts on the piston 7. This process simulates the setting force to push the piston 7 and the upper gauge 8 to move forward to extrude the rubber cylinder 9, and the rubber cylinder 9 is under pressure. Longitudinal contraction and radial expansion complete the setting, and then the first pressure hole 15 is closed to maintain the setting state of the rubber tube 9 . Then the pressurization system 14 pressurizes the seal to the third pressure seal or observation hole 17, if it is observed that the second observation or the pressure of the pressure seal hole 16 does not rise, the sealing performance of the rubber cartridge is qualified; Observation or pressurization inspection seal hole 16 pressure rises, so the sealing performance of rubber cartridge is unqualified. In addition, reverse seal inspection can also be carried out, that is, the pressurization system 14 pressurizes and inspects the second observation or pressure seal inspection hole 16, and the third pressure inspection or inspection hole 17 is used as an observation.
实施例2 Example 2
本实施例结合附图对本实用新型进行说明，如图1所示： The present embodiment is described the utility model in conjunction with accompanying drawing, as shown in Figure 1:
本实用新型连接方式：上端盖1和下端盖2分别连接在心轴4的两端；外筒3与上端盖1和下端盖2依靠丝扣相连接；内衬套5安装在心轴4外壁上；外衬套6安装外筒3的内壁上；活塞7、上通径规8、胶筒9、下通径规10从左到右依次安装在内衬套5上；外筒3上有3个孔，从左到右分别为第一加压孔15、第二观察或加压验封孔16和第三加压验封或观察孔17，加压系统14通过管线分别与这三个孔相连接；加热套11安装在外筒3上，位于第二观察或加压验封孔16和第三加压验封或观察孔17之间；加热套11上有温度传感器12，温度传感器12的底端与外筒3的外壁接触；加热套11、温度传感器12通过电缆线与加热控制器13相连，组成恒温加热系统。 The connection mode of the utility model: the upper end cover 1 and the lower end cover 2 are respectively connected to the two ends of the mandrel 4; the outer cylinder 3 is connected with the upper end cover 1 and the lower end cover 2 by thread; the inner bushing 5 is installed on the outer wall of the mandrel 4; Outer bushing 6 is installed on the inner wall of outer cylinder 3; Holes, from left to right are the first pressurization hole 15, the second observation or pressure seal inspection hole 16 and the third pressurization seal inspection or observation hole 17, and the pressurization system 14 is connected with these three holes respectively through pipelines connection; the heating jacket 11 is installed on the outer cylinder 3, and is located between the second observation or pressure inspection hole 16 and the third pressure inspection or observation hole 17; there is a temperature sensor 12 on the heating jacket 11, and the bottom of the temperature sensor 12 The end is in contact with the outer wall of the outer cylinder 3; the heating jacket 11 and the temperature sensor 12 are connected with the heating controller 13 through cables to form a constant temperature heating system.
本实用新型可以模拟井下温度、压力工况，以及封隔器胶筒工作状态，检测胶筒的密封性能。 The utility model can simulate the downhole temperature and pressure working conditions, and the working state of the rubber cylinder of the packer, and detect the sealing performance of the rubber cylinder.
为了适应不同尺寸胶筒的检测，通过更换不同尺寸的内衬套5、外衬套6来适应不同尺寸的胶筒，90-170mm。 In order to adapt to the detection of rubber cartridges of different sizes, the rubber cartridges of different sizes, 90-170mm, are adapted by replacing the inner bushing 5 and the outer bushing 6 of different sizes.
本实用新型包括加热套11、温度传感器12、加热控制器13，三者构成一个加热系统。可以实现对外筒3及内部空间加热，模拟井下温度环境200℃，并保持长时间温度恒定。 The utility model comprises a heating jacket 11, a temperature sensor 12, and a heating controller 13, and the three constitute a heating system. It can realize the heating of the outer cylinder 3 and the inner space, simulate the downhole temperature environment of 200°C, and keep the temperature constant for a long time.
本实用新型包括活塞7、上通径规8，二者构成一个坐封动力系统。液压作为源动力，通过活塞把液压转化为坐封力推挤胶筒9实现模拟坐封过程，替代传统的采用大载荷机械力直接加载挤压胶筒模拟坐封过程，结构更简单，系统体积更小。加压系统可采用现有技术中的加压系统。 The utility model comprises a piston 7 and an upper diameter gauge 8, both of which constitute a setting and sealing power system. As the source of power, the hydraulic pressure is converted into the setting force by the piston to push the rubber cylinder 9 to simulate the setting process, replacing the traditional method of directly loading the extrusion rubber cylinder with a large load of mechanical force to simulate the setting process, the structure is simpler, and the system volume smaller. The pressurization system can adopt the pressurization system in the prior art.
本实用新型工作压力105MPa，工作温度200℃，外径220mm，长度990mm。 The working pressure of the utility model is 105MPa, the working temperature is 200°C, the outer diameter is 220mm, and the length is 990mm.
本实用新型通过外筒3内部设置心轴4，把封隔器胶筒9安置在模拟装置心轴4上，替代传统把整个封隔器安置在模拟井筒内的模拟方式。 The utility model arranges the mandrel 4 inside the outer cylinder 3, and places the packer rubber cylinder 9 on the mandrel 4 of the simulation device, replacing the traditional simulation method of placing the whole packer in the simulated wellbore.
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