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Precise comprehensive-control underwater wireless communication remote transmission device

A wireless communication and all-round technology, applied in earthwork drilling, mining fluid, measurement, etc., can solve the problems of complicated operation, low precision, high labor intensity, etc., and achieve accurate azimuth measurement, convenient installation and operation, and good construction effect Effect

Pending Publication Date: 2018-12-21
WUHUA ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Precise comprehensive-control underwater wireless communication remote transmission device
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  • Precise comprehensive-control underwater wireless communication remote transmission device

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Embodiment Construction

[0020] Below in conjunction with specific embodiment the present invention is described in further detail, described is explanation of the present invention rather than limitation.

[0021] see Figure 1-Figure 4 , the precise omni-directional control underwater wireless communication remote transmission device provided by the present invention includes a skeleton shell 1, a circuit skeleton 2, a circuit skeleton plug 3, a magnetic resistance joint 4, a sealing pin 5, a window protection tube 6 and a pin Connector 7; the pin connector 7 is equipped with a special communication device to receive the measurement control command issued by the ground system, and through the underwater wireless communication technology, the command is sent to the precise positioning wireless cascade communication gun head measurement and control device, and can also receive precise positioning The measurement results of the wireless cascade communication gun head measurement and control device, and...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/001E21B47/12E21B43/119
CPCE21B43/119E21B47/12E21B47/001
Inventor 王峰杨伟李静岑马涛闵杰陈政陈才刘超瑾刘西京
Owner WUHUA ENERGY TECH CO LTD
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