CN110608035A - Test system and method for wireless transmission of oil well downhole data - Google Patents
Test system and method for wireless transmission of oil well downhole data Download PDFInfo
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- 238000012360 testing method Methods 0.000 title claims abstract description 82
- 239000003129 oil well Substances 0.000 title claims abstract description 46
- 230000005540 biological transmission Effects 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000004891 communication Methods 0.000 claims abstract description 102
- 238000011084 recovery Methods 0.000 claims abstract description 15
- 238000003860 storage Methods 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 238000013500 data storage Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 4
- 238000010998 test method Methods 0.000 claims description 2
- 230000001960 triggered effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- SOPYTFSYTUAGFR-OEAKJJBVSA-N chembl2431390 Chemical compound C1=CC=C2C(/C=N/NC(=O)CCN3C4=CC=CC=C4N=C3C)=C(O)C=CC2=C1 SOPYTFSYTUAGFR-OEAKJJBVSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
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Abstract
本发明公开了一种无线传输油井井下数据的测试系统及其方法，该系统包括设置在油井井下的套管，所述套管内由上至下设置有依次连接的油管、封隔器、筛管以及丝堵；所述封隔器的下部设置有井下测试装置，所述套管与油管之间的环形空间内设置有井下采集装置，所述井下测试装置与井下采集装置通过无线通讯进行数据传输。所述封隔器内预埋有同轴线缆，所述同轴线缆的数据输入端穿出封隔器的底端与井下测试装置的数据输出端相连，所述同轴线缆的数据输出端贯穿封隔器的侧壁与井下采集装置的数据输入端进行无线通讯。本发明的系统可有效缩短井下压力恢复的测试时间，并通过无线传输装置获取井下测试参数。
The invention discloses a test system and method for wirelessly transmitting downhole data of an oil well. The system includes a casing arranged in the downhole of the oil well, and oil pipes, packers, and screens connected in sequence are arranged in the casing from top to bottom. and a plug; the lower part of the packer is provided with a downhole testing device, and the annular space between the casing and the tubing is provided with a downhole acquisition device, and the downhole testing device and the downhole acquisition device perform data transmission through wireless communication . A coaxial cable is pre-embedded in the packer, and the data input end of the coaxial cable passes through the bottom end of the packer to connect with the data output end of the downhole testing device. The data of the coaxial cable The output end passes through the side wall of the packer to communicate wirelessly with the data input end of the downhole acquisition device. The system of the invention can effectively shorten the test time of downhole pressure recovery, and obtain downhole test parameters through the wireless transmission device.
Description
技术领域technical field
本发明涉及油田测试领域，具体涉及一种无线传输油井井下数据的测试系统及其方法。The invention relates to the field of oil field testing, in particular to a testing system and method for wirelessly transmitting oil well downhole data.
背景技术Background technique
在油田生产开发过程中，为了解油井的生产能力和储层特性，一般需要借助测试仪器获取油田井下的压力、温度等相关地层参数。In the process of oilfield production and development, in order to understand the production capacity and reservoir characteristics of oil wells, it is generally necessary to obtain relevant formation parameters such as pressure and temperature in the downhole of the oilfield with the help of testing instruments.
针对低渗、低产油井，由于油层供液能力不足，一般需要关井3～5个月才有可能取得合格的压力恢复测试资料，压力恢复时间长，测试效率低，不能满足油田现场的测试需要。For oil wells with low permeability and low production, due to the insufficient liquid supply capacity of the oil layer, it generally takes 3 to 5 months to obtain qualified pressure recovery test data after shutting down the well. The pressure recovery time is long and the test efficiency is low, which cannot meet the testing needs of the oilfield field. .
发明内容Contents of the invention
本发明的目的在于克服上述背景技术的不足，提供一种无线传输油井井下数据的测试系统及其方法，该系统可有效缩短井下压力恢复的测试时间，并通过无线传输装置获取井下测试参数。The purpose of the present invention is to overcome the shortcomings of the above-mentioned background technology and provide a test system and method for wirelessly transmitting oil well downhole data. The system can effectively shorten the test time for downhole pressure recovery and obtain downhole test parameters through a wireless transmission device.
为实现上述目的，本发明提供的一种无线传输油井井下数据的测试系统，其特征在于：包括设置在油井井下的套管，所述套管内由上至下设置有依次连接的油管、封隔器、筛管以及丝堵；In order to achieve the above object, the present invention provides a test system for wireless transmission of oil well downhole data, which is characterized in that: it includes a casing arranged in the downhole of the oil well, and the casing is provided with sequentially connected oil pipes, isolation tubes, etc. from top to bottom devices, screens and plugs;
所述封隔器下部设置有井下测试装置，所述套管与油管之间的环形空间内设置有井下采集装置，所述井下测试装置与井下采集装置通过无线通讯进行数据传输。A downhole testing device is installed at the lower part of the packer, and a downhole acquisition device is installed in the annular space between the casing and the tubing, and the downhole testing device and the downhole acquisition device perform data transmission through wireless communication.
进一步地，所述封隔器内预埋有同轴线缆，所述同轴线缆的数据输入端穿出封隔器的底端与井下测试装置的数据输出端相连，所述同轴线缆的数据输出端贯穿封隔器的侧壁与井下采集装置的数据输入端进行无线通讯。Further, a coaxial cable is pre-embedded in the packer, the data input end of the coaxial cable passes through the bottom end of the packer and is connected to the data output end of the downhole testing device, and the coaxial cable The data output end of the cable runs through the side wall of the packer to communicate wirelessly with the data input end of the downhole acquisition device.
进一步地，所述套管与油管之间的环形空间内设置有单芯电缆，所述单芯电缆的数据输入端与井下采集装置的数据输出端连接，所述单芯电缆的数据输出端与地面控制系统的数据输入端相连。Further, a single-core cable is provided in the annular space between the casing and the tubing, the data input end of the single-core cable is connected to the data output end of the downhole acquisition device, and the data output end of the single-core cable is connected to the The data input terminal of the ground control system is connected.
进一步地，所述筛管设置在油井井下的射孔层处，所述筛管的外壁周向设置有若干个流通孔。Further, the screen is arranged at the perforated layer downhole of the oil well, and the outer wall of the screen is provided with several circulation holes in the circumferential direction.
进一步地，所述油管内设置有抽油泵，所述抽油泵通过抽油杆与地面上的抽油设备连接。Further, an oil pump is arranged in the oil pipe, and the oil pump is connected to the oil pumping equipment on the ground through a sucker rod.
进一步地，所述油管的底部与封隔器的顶部螺纹连接，所述封隔器的底部与筛管的顶部螺纹连接，所述筛管的底部与丝堵螺纹连接。Further, the bottom of the tubing is threaded to the top of the packer, the bottom of the packer is threaded to the top of the screen, and the bottom of the screen is threaded to the plug.
进一步地，所述井下测试装置包括压力传感器、第一单片机、第一存储器以及第一无线通讯模块；Further, the downhole testing device includes a pressure sensor, a first single-chip microcomputer, a first memory and a first wireless communication module;
所述压力传感器的数据输出端与第一单片机的数据输入端连接，所述第一单片机的数据存储端与第一存储器连接，所述第一单片机的数据输出端与第一无线通讯模块的数据输入端连接，所述第一无线通讯模块的数据输出端与井下采集装置的数据输入端连接；The data output end of the pressure sensor is connected to the data input end of the first single-chip microcomputer, the data storage end of the first single-chip microcomputer is connected to the first memory, and the data output end of the first single-chip microcomputer is connected to the data of the first wireless communication module. The input end is connected, and the data output end of the first wireless communication module is connected with the data input end of the downhole acquisition device;
所述井下采集装置的控制信号输出端与第一无线通讯模块的控制信号输入端连接，所述第一无线通讯模块的控制信号输出端与第一单片机的控制信号输入端连接。The control signal output end of the downhole acquisition device is connected to the control signal input end of the first wireless communication module, and the control signal output end of the first wireless communication module is connected to the control signal input end of the first single-chip microcomputer.
进一步地，所述井下采集装置包括第二无线通讯模块、第二单片机、第二存储器以及第一载波通讯模块；Further, the downhole acquisition device includes a second wireless communication module, a second single-chip microcomputer, a second memory and a first carrier communication module;
所述第二无线通讯模块的数据输入端与第一无线通讯模块的数据输出端连接，所述第二无线通讯模块的数据输出端与第二单片机的数据输入端连接，所述第二单片机的数据存储端与第二存储器连接，所述第二单片机的数据输出端与第一载波通讯模块的数据输入端连接，所述第一载波通讯模块的数据输出端与地面控制系统的数据输入端连接；The data input end of the second wireless communication module is connected with the data output end of the first wireless communication module, the data output end of the second wireless communication module is connected with the data input end of the second single-chip microcomputer, and the data output end of the second single-chip microcomputer is connected. The data storage end is connected with the second memory, the data output end of the second single-chip microcomputer is connected with the data input end of the first carrier communication module, and the data output end of the first carrier communication module is connected with the data input end of the ground control system ;
所述地面控制系统的控制信号输出端与第一载波通讯模块的控制信号输入端连接，所述第一载波通讯模块的控制信号输出端与第二单片机的控制信号输入端连接，所述第二单片机的控制信号输出端与第二无线通讯模块的控制信号输入端连接，所述第二无线通讯模块的控制信号输出端与第一无线通讯模块的控制信号输入端连接。The control signal output end of the ground control system is connected to the control signal input end of the first carrier communication module, the control signal output end of the first carrier communication module is connected to the control signal input end of the second single-chip microcomputer, and the second The control signal output end of the single chip microcomputer is connected with the control signal input end of the second wireless communication module, and the control signal output end of the second wireless communication module is connected with the control signal input end of the first wireless communication module.
进一步地，所述地面控制系统包括第二载波通讯模块、第三单片机以及触控面板；Further, the ground control system includes a second carrier communication module, a third single-chip microcomputer and a touch panel;
所述第二载波通讯模块的数据输入端与第一载波通讯模块的数据输出端连接，所述第二载波通讯模块的数据输出端与第三单片机的数据输入端连接，所述第三单片机的数据输出端与触控面板的数据输入端连接；The data input end of the second carrier communication module is connected with the data output end of the first carrier communication module, the data output end of the second carrier communication module is connected with the data input end of the third single-chip microcomputer, and the data output end of the third single-chip microcomputer is connected. The data output end is connected with the data input end of the touch panel;
所述触控面板的控制信号输出端与第二载波通讯模块的控制信号输入端连接，所述第二载波通讯模块的控制信号输出端与第二载波通讯模块的控制信号输入端连接，所述第二载波通讯模块的控制信号输出端与第一载波通讯模块的控制信号输入端连接。The control signal output end of the touch panel is connected to the control signal input end of the second carrier communication module, the control signal output end of the second carrier communication module is connected to the control signal input end of the second carrier communication module, and the The control signal output end of the second carrier communication module is connected with the control signal input end of the first carrier communication module.
本发明还提供一种利用上述的无线传输油井井下数据的测试系统进行测试的方法，包括如下步骤：The present invention also provides a method for testing using the above-mentioned testing system for wireless transmission of oil well downhole data, including the following steps:
1)当需要进行井下数据测试时，将油管、封隔器、筛管、丝堵以及井下测试装置组装好后下放入井下的套管内，抽油泵正常工作，井下测试装置进行流动压力测试并存储；1) When downhole data testing is required, the tubing, packer, screen, plug and downhole testing device are assembled and put into the downhole casing. The oil well pump works normally, and the downhole testing device performs flow pressure test and storage;
2)当需要进行压力恢复监测时，抽油泵停止工作，转动油管，使封隔器处于座封状态，井下测试装置继续进行地层压力恢复测试并存储；2) When it is necessary to monitor the pressure recovery, the oil well pump stops working, and the tubing is rotated to keep the packer in a seated state, and the downhole testing device continues to perform the formation pressure recovery test and store it;
3)当需要提取井下测试数据时，将井下采集装置通过单芯电缆下放入套管与油管之间的环形空间内，操作人员通过地面控制系统发出控制信号，使井下采集装置中的第二单片机控制第二无线通讯模块向井下测试装置中的第一无线通讯模块发送指令，并传递至第一单片机；第一单片机收到指令后向上通过井下采集装置传递至地面控制系统中的触控面板，触控面板上显示通讯正常后，第一存储器中存储的压力数据传递至井下采集装置，触发第二单片机将数据存储在第二存储器中，并将数据回放进度信息传递至地面控制系统中的触控面板，待全部数据传递完毕后，将井下采集装置提出至地面即可。3) When it is necessary to extract downhole test data, the downhole acquisition device is lowered into the annular space between the casing and the tubing through a single-core cable, and the operator sends a control signal through the ground control system to make the second downhole acquisition device The single-chip microcomputer controls the second wireless communication module to send instructions to the first wireless communication module in the downhole testing device, and transmits them to the first single-chip microcomputer; the first single-chip microcomputer receives the instructions and transmits them upward through the downhole acquisition device to the touch panel in the ground control system After the touch panel shows that the communication is normal, the pressure data stored in the first memory is transmitted to the downhole acquisition device, which triggers the second single-chip microcomputer to store the data in the second memory, and transmits the data playback progress information to the ground control system. Touch panel, after all the data transmission is completed, just lift the downhole acquisition device to the ground.
与现有技术相比，本发明具有如下优点：Compared with prior art, the present invention has following advantage:
其一，本发明的无线传输油井井下数据的测试系统优化改进传统的测试方法，使井下测试装置既能实现油井正常生产过程中的流动压力监测，又能满足井下关井流体压缩状况下地层压力恢复数据的准确录取。First, the test system for wireless transmission of oil well downhole data of the present invention optimizes and improves the traditional test method, so that the downhole test device can not only realize the flow pressure monitoring in the normal production process of the oil well, but also meet the formation pressure under the condition of downhole shut-in fluid compression. Accurate admission of recovery data.
其二，本发明的无线传输油井井下数据的测试系统设置有井下封隔器，对低渗、低产油井而言，实现了关井压力恢复试井过程中井筒储集空间最大程度的缩小，有效缩短了井筒储集时间，提高了测试效率。Second, the test system for wireless transmission of oil well downhole data of the present invention is provided with a downhole packer, and for low permeability and low production oil wells, it realizes the reduction of the wellbore storage space to the greatest extent in the process of shutting in the well pressure recovery test, effectively The wellbore storage time is shortened and the testing efficiency is improved.
其三，本发明的无线传输油井井下数据的测试系统采用无线传输技术，在不起泵的情况下，可快捷的获取井下测试数据，有效缩短井下压力恢复的测试时间。Third, the test system for wireless transmission of oil well downhole data of the present invention adopts wireless transmission technology, and can quickly obtain downhole test data without using a pump, effectively shortening the test time for downhole pressure recovery.
附图说明Description of drawings
图1为一种无线传输油井井下数据的测试系统的结构示意图；Fig. 1 is a structural schematic diagram of a test system for wireless transmission of oil well downhole data;
图2为图1中筛管的展开结构示意图；Fig. 2 is a schematic diagram of the unfolded structure of the screen pipe in Fig. 1;
图3为图1中井下测试装置的信号流程图；Fig. 3 is a signal flow diagram of the downhole testing device in Fig. 1;
图4为图1中井下采集装置的信号流程图；Fig. 4 is a signal flow diagram of the downhole acquisition device in Fig. 1;
图5为图1中地面控制系统的信号流程图；Fig. 5 is a signal flow chart of the ground control system in Fig. 1;
图中：套管1、油管2、封隔器3、筛管4、流通孔4.1、丝堵5、井下测试装置6(压力传感器6.1、第一单片机6.2、第一存储器6.3、第一无线通讯模块6.4)、井下采集装置7(第二无线通讯模块7.1、第二单片机7.2、第二存储器7.3、第一载波通讯模块7.4)、同轴线缆8、单芯电缆9、地面控制系统10(第二载波通讯模块10.1、第三单片机10.2、触控面板10.3)、射孔层11、抽油泵12、抽油杆13。In the figure: casing 1, tubing 2, packer 3, screen 4, flow hole 4.1, plug 5, downhole testing device 6 (pressure sensor 6.1, first single-chip computer 6.2, first memory 6.3, first wireless communication module 6.4), downhole acquisition device 7 (second wireless communication module 7.1, second single-chip microcomputer 7.2, second memory 7.3, first carrier communication module 7.4), coaxial cable 8, single-core cable 9, ground control system 10 ( The second carrier communication module 10.1, the third single-chip microcomputer 10.2, the touch panel 10.3), the perforation layer 11, the oil pump 12, and the sucker rod 13.
具体实施方式Detailed ways
下面结合实施案例详细说明本发明的实施情况，但它们并不构成对本发明的限定，仅作举例而已。同时通过说明本发明的优点将变得更加清楚和容易理解。The implementation of the present invention will be described in detail below in conjunction with the examples of implementation, but they do not constitute a limitation of the present invention, and are only examples. At the same time, the advantages of the present invention will become clearer and easier to understand.
如图1所示的一种无线传输油井井下数据的测试系统，包括设置在油井井下的套管1，套管1内由上至下设置有依次连接的油管2、封隔器3、筛管4以及丝堵5，油管2的底部与封隔器3的顶部螺纹连接，封隔器3的底部与筛管4的顶部螺纹连接，筛管4的底部与丝堵5螺纹连接。封隔器3的下部设置有井下测试装置6，套管1与油管2之间的环形空间内设置有井下采集装置7，井下测试装置6与井下采集装置7通过无线通讯进行数据传输。这样，可以使井下测试装置既能实现油井正常生产过程中的流动压力监测，又能满足井下关井流体压缩状况下地层压力恢复数据的准确录取。通过设置封隔器3对低渗、低产油井而言，实现了关井压力恢复试井过程中井筒储集空间最大程度的缩小，有效缩短了井筒储集时间，提高了测试效率。As shown in Figure 1, a test system for wirelessly transmitting downhole data of an oil well includes a casing 1 arranged downhole in the oil well, and inside the casing 1 are arranged sequentially connected oil pipes 2, packers 3, and screens from top to bottom. 4 and plug 5, the bottom of tubing 2 is threaded to the top of packer 3, the bottom of packer 3 is threaded to the top of screen 4, and the bottom of screen 4 is threaded to plug 5. The lower part of the packer 3 is provided with a downhole testing device 6, and a downhole collection device 7 is provided in the annular space between the casing 1 and the tubing 2, and the downhole testing device 6 and the downhole collection device 7 perform data transmission through wireless communication. In this way, the downhole testing device can not only realize the flow pressure monitoring in the normal production process of the oil well, but also satisfy the accurate recording of formation pressure recovery data under the downhole shut-in fluid compression state. For low-permeability and low-yield oil wells, the installation of the packer 3 minimizes the wellbore storage space during shut-in and pressure recovery testing, effectively shortens the wellbore storage time, and improves testing efficiency.
上述技术方案中，油管2内设置有抽油泵12，抽油泵12通过抽油杆13与地面上抽油设备(如抽油机)连接。封隔器3内预埋有同轴线缆8，同轴线缆8的数据输入端穿出封隔器3的底端通过天线与井下测试装置6的数据输出端相连，同轴线缆8的数据输出端贯穿封隔器3的侧壁通过天线与井下采集装置7的数据输入端进行无线通讯，本实施例中，同轴线缆8的型号为RG178，具有优越的传输特性，可在通信网络中稳定运行。套管1与油管2之间的环形空间内设置有单芯电缆9，单芯电缆9的数据输入端与井下采集装置7的数据输出端连接，单芯电缆9的数据输出端与地面控制系统10的数据输入端相连。In the above technical solution, the oil pipe 2 is provided with an oil well pump 12, and the oil well pump 12 is connected with the oil pumping equipment (such as a pump unit) on the ground through the oil sucker rod 13 . A coaxial cable 8 is pre-embedded in the packer 3. The data input end of the coaxial cable 8 passes through the bottom end of the packer 3 and is connected to the data output end of the downhole testing device 6 through an antenna. The coaxial cable 8 The data output end of the data output terminal runs through the side wall of the packer 3 to perform wireless communication with the data input end of the downhole acquisition device 7 through the antenna. In this embodiment, the model of the coaxial cable 8 is RG178, which has excellent transmission characteristics and can be used in Stable operation in the communication network. A single-core cable 9 is arranged in the annular space between the casing 1 and the tubing 2, the data input end of the single-core cable 9 is connected to the data output end of the downhole acquisition device 7, and the data output end of the single-core cable 9 is connected to the ground control system 10 connected to the data input.
如图2所示，筛管4设置在油井井下的射孔层11，筛管4的外壁周向设置有若干个流通孔4.1。这样，油井井下的射孔层11中的油可通过流通孔4.1进入筛管4内部。As shown in Fig. 2, the screen 4 is arranged in the perforated layer 11 downhole of the oil well, and the outer wall of the screen 4 is provided with several circulation holes 4.1 in the circumferential direction. In this way, the oil in the perforated layer 11 downhole of the oil well can enter the inside of the screen pipe 4 through the flow holes 4.1.
如图3所示，井下测试装置6包括压力传感器6.1、第一单片机6.2、第一存储器6.3以及第一无线通讯模块6.4；本实施例中，压力传感器6.1的型号为PA-8；第一单片机6.2的型号为PIC24F32KA302-E/SS；第一存储器6.3的型号为SST26VF064B；第一无线通讯模块6.4的型号为AS50-T20。压力传感器6.1的数据输出端与第一单片机6.2的数据输入端连接，第一单片机6.2的数据存储端与第一存储器6.3连接，第一单片机6.2的数据输出端与第一无线通讯模块6.4的数据输入端连接，第一无线通讯模块6.4的数据输出端与井下采集装置7的数据输入端连接。井下采集装置7的控制信号输出端与第一无线通讯模块6.4的控制信号输入端连接，第一无线通讯模块6.4的控制信号输出端与第一单片机6.2的控制信号输入端连接。As shown in Figure 3, the downhole testing device 6 includes a pressure sensor 6.1, a first single-chip microcomputer 6.2, a first memory 6.3 and a first wireless communication module 6.4; in this embodiment, the model of the pressure sensor 6.1 is PA-8; the first single-chip microcomputer The model of 6.2 is PIC24F32KA302-E/SS; the model of the first memory 6.3 is SST26VF064B; the model of the first wireless communication module 6.4 is AS50-T20. The data output end of the pressure sensor 6.1 is connected with the data input end of the first single-chip microcomputer 6.2, the data storage end of the first single-chip microcomputer 6.2 is connected with the first memory 6.3, the data output end of the first single-chip microcomputer 6.2 is connected with the data of the first wireless communication module 6.4 The input end is connected, and the data output end of the first wireless communication module 6.4 is connected with the data input end of the downhole acquisition device 7 . The control signal output end of the downhole acquisition device 7 is connected to the control signal input end of the first wireless communication module 6.4, and the control signal output end of the first wireless communication module 6.4 is connected to the control signal input end of the first single-chip microcomputer 6.2.
如图4所示，井下采集装置7包括第二无线通讯模块7.1、第二单片机7.2、第二存储器7.3以及第一载波通讯模块7.4；本实施例中，第二无线通讯模块7.1的型号为AS50-T20；第二单片机7.2的型号为PIC18F26K80；第二存储器7.3的型号为FLASH SST26VF064B；第一载波通讯模块7.4的型号为DLB-TX。第二无线通讯模块7.1的数据输入端与第一无线通讯模块6.4的数据输出端连接，第二无线通讯模块7.1的数据输出端与第二单片机7.2的数据输入端连接，第二单片机7.2的数据存储端与第二存储器7.3连接，第二单片机7.2的数据输出端与第一载波通讯模块7.4的数据输入端连接，第一载波通讯模块7.4的数据输出端与地面控制系统10的数据输入端连接。As shown in Figure 4, the downhole acquisition device 7 includes a second wireless communication module 7.1, a second single-chip microcomputer 7.2, a second memory 7.3 and a first carrier communication module 7.4; in this embodiment, the model of the second wireless communication module 7.1 is AS50 -T20; the model of the second microcontroller 7.2 is PIC18F26K80; the model of the second memory 7.3 is FLASH SST26VF064B; the model of the first carrier communication module 7.4 is DLB-TX. The data input end of the second wireless communication module 7.1 is connected with the data output end of the first wireless communication module 6.4, the data output end of the second wireless communication module 7.1 is connected with the data input end of the second single-chip microcomputer 7.2, and the data of the second single-chip microcomputer 7.2 The storage end is connected with the second memory 7.3, the data output end of the second microcontroller 7.2 is connected with the data input end of the first carrier communication module 7.4, and the data output end of the first carrier communication module 7.4 is connected with the data input end of the ground control system 10 .
上述技术方案中，地面控制系统10的控制信号输出端与第一载波通讯模块7.4的控制信号输入端连接，第一载波通讯模块7.4的控制信号输出端与第二单片机7.2的控制信号输入端连接，第二单片机7.2的控制信号输出端与第二无线通讯模块7.1的控制信号输入端连接，第二无线通讯模块7.1的控制信号输出端与第一无线通讯模块6.4的控制信号输入端连接。In the above-mentioned technical scheme, the control signal output end of the ground control system 10 is connected with the control signal input end of the first carrier communication module 7.4, and the control signal output end of the first carrier communication module 7.4 is connected with the control signal input end of the second single-chip microcomputer 7.2 , the control signal output end of the second single chip microcomputer 7.2 is connected with the control signal input end of the second wireless communication module 7.1, and the control signal output end of the second wireless communication module 7.1 is connected with the control signal input end of the first wireless communication module 6.4.
如图5所示，地面控制系统10包括第二载波通讯模块10.1、第三单片机10.2以及触控面板10.3；本实施例中，第二载波通讯模块10.1的型号为DLB-TX；第三单片机10.2的型号为PIC24FJ256GB106；触控面板10.3的型号为迪文800×600。第二载波通讯模块10.1的数据输入端与第一载波通讯模块7.4的数据输出端连接，第二载波通讯模块10.1的数据输出端与第三单片机10.2的数据输入端连接，第三单片机10.2的数据输出端与触控面板10.3的数据输入端连接。As shown in Figure 5, the ground control system 10 includes a second carrier communication module 10.1, a third single-chip microcomputer 10.2 and a touch panel 10.3; in the present embodiment, the model of the second carrier communication module 10.1 is DLB-TX; the third single-chip microcomputer 10.2 The model of the touch panel is PIC24FJ256GB106; the model of the touch panel 10.3 is Divin 800×600. The data input end of the second carrier communication module 10.1 is connected with the data output end of the first carrier communication module 7.4, the data output end of the second carrier communication module 10.1 is connected with the data input end of the 3rd single-chip microcomputer 10.2, the data of the 3rd single-chip microcomputer 10.2 The output end is connected with the data input end of the touch panel 10.3.
上述技术方案中，触控面板10.3的控制信号输出端与第二载波通讯模块10.1的控制信号输入端连接，第二载波通讯模块10.1的控制信号输出端与第二载波通讯模块10.1的控制信号输入端连接，第二载波通讯模块10.1的控制信号输出端与第一载波通讯模块7.4的控制信号输入端连接。In the above technical solution, the control signal output terminal of the touch panel 10.3 is connected to the control signal input terminal of the second carrier communication module 10.1, and the control signal output terminal of the second carrier communication module 10.1 is connected to the control signal input terminal of the second carrier communication module 10.1. The control signal output terminal of the second carrier communication module 10.1 is connected with the control signal input terminal of the first carrier communication module 7.4.
本发明还提供一种利用上述的无线传输油井井下数据的测试系统进行测试的方法，包括如下步骤：The present invention also provides a method for testing using the above-mentioned testing system for wireless transmission of oil well downhole data, including the following steps:
1)当需要进行井下数据测试时，将油管2、封隔器3、筛管4、丝堵5、井下测试装置6组装好后下放入至井下的套管1内，抽油泵12正常工作，井下测试装置6的压力传感器6.1通过第一单片机6.2和第一存储器6.3进行流动压力测试并存储；1) When downhole data testing is required, the tubing 2, packer 3, screen 4, plug 5, and downhole testing device 6 are assembled and lowered into the downhole casing 1, and the oil well pump 12 works normally , the pressure sensor 6.1 of the downhole testing device 6 performs a flow pressure test and stores it through the first single-chip microcomputer 6.2 and the first memory 6.3;
2)当需要进行压力恢复监测时，抽油泵12停止工作，转动油管2，使封隔器3处于座封状态，井下测试装置6的压力传感器6.1通过第一单片机6.2和第一存储器6.3继续进行地层压力恢复测试并存储；2) When it is necessary to monitor the pressure recovery, the oil well pump 12 stops working, and the tubing 2 is rotated so that the packer 3 is in a seated state, and the pressure sensor 6.1 of the downhole testing device 6 continues to perform the monitoring through the first single-chip microcomputer 6.2 and the first storage device 6.3. Formation pressure recovery test and storage;
3)当需要提取井下测试数据时，将井下采集装置7通过单芯电缆9下放入套管1与油管2之间的环形空间内，操作人员通过地面控制系统10发出控制信号，使井下采集装置7中的第二单片机7.2控制第二无线通讯模块7.1向井下测试装置6中的第一无线通讯模块6.4发送指令，并传递至第一单片机6.2；第一单片机6.2收到指令后向上通过井下采集装置7传递至地面控制系统10中的触控面板10.3，触控面板10.3上显示通讯正常后，第一存储器6.3中存储的压力数据传递至井下采集装置7，触发第二单片机7.2将数据存储在第二存储器7.3中，并将数据回放进度信息传递至地面控制系统10中的触控面板10.3，待全部数据传递完毕后，将井下采集装置7提出至地面即可。3) When it is necessary to extract downhole test data, the downhole acquisition device 7 is lowered into the annular space between the casing 1 and the tubing 2 through the single-core cable 9, and the operator sends a control signal through the ground control system 10 to make the downhole acquisition The second single-chip microcomputer 7.2 in the device 7 controls the second wireless communication module 7.1 to send instructions to the first wireless communication module 6.4 in the downhole testing device 6, and transmits them to the first single-chip microcomputer 6.2; the first single-chip microcomputer 6.2 passes through the downhole after receiving the command. The acquisition device 7 transmits to the touch panel 10.3 in the ground control system 10. After the touch panel 10.3 shows that the communication is normal, the pressure data stored in the first memory 6.3 is transmitted to the downhole acquisition device 7, and the second single-chip microcomputer 7.2 is triggered to store the data. In the second memory 7.3, the data playback progress information is transmitted to the touch panel 10.3 in the ground control system 10. After all the data transmission is completed, the downhole acquisition device 7 can be lifted to the ground.
以上，仅为本发明的具体实施方式，应当指出，任何熟悉本领域的技术人员在本发明所揭示的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内，其余未详细说明的为现有技术。The above is only a specific embodiment of the present invention. It should be pointed out that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention shall be covered by the protection scope of the present invention. , and the rest not specified are prior art.
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Application publication date: 20191224 |
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| RJ01 | Rejection of invention patent application after publication |