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A temperature and pressure profile tester and device
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A technology of temperature, pressure and tester, which is applied in the directions of measurement, wellbore/well components, earthwork drilling and production, etc. It can solve the problem that the temperature and pressure profile test technology cannot better adapt to the downhole working environment of heavy oil horizontal wells
Active Publication Date: 2015-09-09
PETROCHINA CO LTD
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[0006] The main purpose of the embodiment of the present invention is to provide a temperature and pressure profile tester and device to solve the defect that the existing temperature and pressure profile test technology cannot better adapt to the downhole working environment of heavy oil horizontal wells
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Embodiment 1
[0052] This embodiment provides a temperature and pressure profile tester, the temperature and pressure profile tester includes: a temperature sensor, a thin-walled packaging tube, a pressure conduction capillary, an anti-blocking pressure guiding structure, a pressure sensor, a data acquisitionchip, a heat insulation cavity and a sealing connecting barrel;
[0053] The temperature sensor is packaged in a thin-wall package tube for measuring the downhole temperature;
[0054] One end of the sealed connection cylinder is connected to the thin-walled packaging tube, and the other end is connected to the heat insulation chamber;
[0055] The pressure sensor is installed in the heat insulation cavity, connected to one end of the pressure conduction capillary, and used to measure the pressure transmitted by the pressure conduction capillary;
[0056] The data acquisitionchip is installed in the heat-insulating cavity, connected to the pressure sensor and the temperature sensor r...
Embodiment 2
[0075] This embodiment provides a specific temperature and pressure profile tester, such as figure 1 As shown, the tester includes: a protective cover 101, a thin-walled packaging tube 102, a temperature sensor 103, an anti-blocking pressure guiding structure 104, a sealed connection cylinder 105, a pressure chamber 106, a heat insulation chamber 107, a pressure conduction capillary 108, a pressure Sensor 109, data acquisition chip 110, wireless transmission chip 111, output port 112, battery cartridge 113, magnetic locator 114, heat absorber 115; wherein,
[0076] The protective cover 101 is a metal cover-like structure with openings on its surface, and a thin-walled packaging tube 102 and an anti-blocking pressure-guiding structure 104 are installed inside to protect the thin-walled packaging tube 102 and the anti-blocking pressure-guiding structure 104 , to avoid being damaged in the downhole environment, and at the same time, the thin-walled packaging tube 102 and the anti...
Embodiment 3
[0099] This embodiment provides a temperature and pressure profile testing device, which includes: the temperature and pressure profile tester provided in Embodiment 1 and a shock-absorbing protective support;
[0100] The shock-absorbing protection support cylinder includes a screen pipe, shock-absorbing joints at both ends, a connecting head and a guide cone; wherein,
[0101] The screen pipe is an oil pipe with a plurality of round holes evenly distributed on the pipe wall;
[0102] The damping joints at both ends are respectively connected to the two ends of the screen pipe, and the damping joints at the ends specifically include:
[0103] The main body of the first shock-absorbing joint is connected with the end of the screen pipe with a thread, and a first partition is provided in the middle, and a first perforation is provided in the center of the first partition;
[0104] Two first damping springs are respectively arranged on both sides of the first through hole;
[...
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Abstract
The invention provides a temperature pressure profile testing instrument and a temperature pressure profile testing device. The temperature pressure profile testing instrument comprises a temperature sensor, a thin-walled sealing pipe, a pressure conduction capillary pipe, an anti-blocking pressure conduction structure, a pressure sensor, a data acquisitionchip, a heat-insulating cavity and a sealing connecting tube. The anti-blocking pressure conduction structure specifically comprises a sand prevention pressure conduction cap, a sand prevention core body, a pressure conduction pipe and a base seat. The temperature pressure profile testing device specifically comprises the temperature pressure profile testing instrument and a damping protection support tube. The damping protection support tube specifically comprises a screen pipe, two end portion damping connectors, a connector and a starting taper. The temperature pressure profile testing instrument and the temperature pressure profile testing device can effectively avoid the phenomenon of blocking of the pressure conduction capillary pipe, ensures accuracy of pressure conduction, enhances heat conduction performance of the thin-walled sealing pipe, enables the temperature sensor to sensitively sense temperature under a well, and can obtain measuring results in a real-time mode. The temperature pressure profile testing instrument or the temperature pressure profile testing device can be controlled from a remote place, and therefore the temperature pressure profile testing instrument and the temperature pressure profile testing device can be well suitable for the environment under a viscous oil well.
Description
technical field [0001] The invention relates to the technical field of petroleum development, in particular to a temperature and pressure profile tester and a device. Background technique [0002] At present, horizontal well technology has gradually become the leading technology for efficient oilfield development. In the development process of steam injectionthermal recovery of heavy oil horizontal wells, affected by the heterogeneity of oil layers and the recovery degree of surrounding adjacent wells, there is a problem of unbalanced production of oil layers in the horizontal section, which seriously restricts the overall development effect of heavy oil horizontal wells. There is an urgent need for suitable monitoring technology to understand the development status of downhole reservoirs and guide the development of heavy oil horizontal wells. [0003] The development experience of steam injectionthermal recovery in heavy oil vertical wells shows that the production situ...
Claims
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Application Information
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