Precise comprehensive-control underwater wireless communication remote transmission device

Abstract

The invention discloses a precise comprehensive-control underwater wireless communication remote transmission device. The device comprises a framework shell (1), a window opening protection pipe (6) and a pin insertion joint (7); the framework shell (1) is connected with the window opening protection pipe (6) through a magneto-resistance joint (4), a circuit framework (2) is mounted in the framework shell (1), a circuit board is mounted on the circuit framework (2), and a circuit framework insertion plug (3) is fixedly welded to the circuit framework (2); the window opening protection pipe (6)is in threaded connection with the pin insertion joint (7); the two ends of the window opening protection pipe (6) are provided with sealing insertion pins (5) which are connected through a communication line, the circuit framework insertion plug and the sealing insertion pins are fixed to the magneto-resistance joint (4), and the window opening protection pipe is communicated with the circuit framework insertion plug through the sealing insertion pins. The device receives a measurement control instruction sent by a ground system, and has the advantages of being accurate in azimuth measurement, capable of achieving real-time control, convenient to install and operate, capable of getting rid of limiation of construction sites, excellent in construction effect, high in safety and the like.

Description

technical field [0001] The invention belongs to the field of oil field exploitation, and relates to an underwater wireless communication remote transmission device for precise and all-round control. Background technique [0002] At present, most of my country's oil fields are in the middle and late stages of oil well exploitation, and the problems of remaining oil and thin-layer oil that are difficult to exploit with conventional techniques are gradually emerging. In order to solve the above problems, a variety of new perforation technologies have emerged in recent years, such as azimuth perforation, ultra-deep penetration perforation, compound perforation, etc. Although these perforation methods can improve the perforation effect to a certain extent, they are still It cannot meet the requirements of fine perforation technology, and there are some problems. In order to solve the above-mentioned problems of perforating technology, someone has developed an integrated fixed-sh...

AI Technical Summary

Problems solved by technology

However, the orientation accuracy of this technology is within ± 10°, and when it is used in wells with a well deviation of less than 20°, an external orientation structure must be used to adjust the gun string orientation by rotating the string at the wellhead, and the labor intensity is relatively high. large, complex

Moreover, the original orientation technology cannot measure and control the orientation of the pipe string in real time after the pipe string is lowered to the predetermined position, and the accuracy is not very high.

[0003] The existing positioning device can not be measured and controlled by mechanical positioning to the target layer, and the existing device first relies on its own weight to go down to the target layer, but the error is relatively large (±10°), and the positioning is measured by the gravity sensor Angle, according to the measurement accuracy, carry out precise adjustment, which is not only time-consuming and labor-intensive, but also the accuracy is not high

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