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Wireless data exchange formation test system and test method thereof

A technology of stratum testing and wireless data, which is applied in the directions of surveying, earthwork drilling, wellbore/well components, etc. It can solve the problems of real-time wireless two-way transmission, etc., and achieve the effect of improving transmission accuracy and less interference

Active Publication Date: 2013-04-03
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the above-mentioned problems existing in the existing formation testing methods, and provide a wireless data mutual transmission formation testing system and its testing method. The present invention can realize real-time wireless transmission of test data and data between the ground and downhole instruments. Exchange, so as to overcome the existing problem that the existing test method cannot transmit wireless bidirectionally in real time

Method used

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  • Wireless data exchange formation test system and test method thereof
  • Wireless data exchange formation test system and test method thereof
  • Wireless data exchange formation test system and test method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] A wireless data mutual transmission stratum testing system, including downhole instruments and surface instruments, the downhole instruments include a pilot 1, a measurement unit 2 for detecting downhole data, a downhole computer 3 for receiving and processing downhole data, and a downhole data for The downhole data transmission receiving device 4 for transmission and reception, the pilot 1, the measurement unit 2, the downhole computer 3 and the downhole data transmission receiving device 4 are sequentially connected; Sending device 8, ground computer 10 for data processing and sending control instructions downhole, ground signal receiving and sending device 8 is connected with ground computer 10; downhole data transmission receiving device 4 is connected to ground signal receiving and sending device through drill pipe or tubing 6 8.

[0038] Wherein, the downhole data transmission and receiving device 4 of the downhole instrument is connected with the drill pipe or tu...

Embodiment 2

[0061] This embodiment is basically the same as the above-mentioned embodiment, the main difference is:

[0062] The downhole instrument is arranged in the drill pipe or tubing, and the downhole data transmission and receiving device is connected with the fishing joint through the downhole matching joint, and the fishing joint is sealed and connected with the testing instrument at the preset position of the drill pipe or tubing.

[0063] The downhole instrument is connected to the drilling tool assembly for midway testing or completion testing, and is lowered into the well. After drilling to the test layer, the packer is set, and then the drill pipe or tubing at the wellhead is connected to the ground joint, ground Signal receiving and transmitting devices, cables and ground computers.

[0064] Below this embodiment is described in further detail:

[0065] Connect downhole testing tools to the midway test or completion test BHA and run into the well. After drilling to the te...

Embodiment 3

[0072] This embodiment is basically the same as Embodiment 1, the main difference is:

[0073] Described downhole instrument also comprises battery pack 13, and described downhole data transmission receiving device comprises downhole pulse signal generator 14 and signal receiver 15, and battery pack 13 one end is connected with downhole computer 3, and the other end is connected with downhole pulse signal generator 14 , the downhole pulse signal generator 14 is connected with the drill pipe or tubing 6 through the downhole matching joint 5,

[0074] Described surface signal receiving and sending device comprises ground pulse signal generator 16, sensor 17, wave detector 18 and filter 19, and ground pulse signal generator 16 is connected with drill pipe or tubing 6, and ground pulse signal generator 16 is connected with ground computer respectively. 10 is connected to the sensor 17 joint, the sensor 17 is connected to the sensor joint 20, one end of the detector 18 is connected...

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Abstract

The invention discloses a wireless data exchange formation test system and a test method thereof. The test system comprises a downhole instrument and a ground instrument, wherein the downhole instrument comprises a guide shoe, a measuring unit used for detecting downhole data, a downhole computer used for receiving and processing the downhole data and a downhole data transmitting and receiving device used for transmitting and receiving the downhole data, and the guide shoe, the measuring unit, the downhole computer and the downhole data transmitting and receiving device are sequentially connected; the ground instrument comprises a ground signal receiving and sending device used for receiving and sending ground data and a ground computer used for processing data and sending a control instruction to a downhole, and the ground signal receiving and sending device is connected with the ground computer; and the downhole data transmitting and receiving device is connected to the ground signal receiving and sending device through a drill rod or an oil pipe. The wireless data exchange formation test system and the test method realize the real-time wireless transmission of test data and the data exchange between the ground instrument and the downhole instrument and solve the problem that the current test method cannot carry out real-time wireless two-way transmission.

Description

technical field [0001] The invention relates to a wireless data mutual transmission stratum testing system and a testing method thereof, belonging to the technical field of oil and gas drilling or well completion. Background technique [0002] There are two formation testing methods currently in use, one is drilling midway testing, and the other is slickline testing for well completion testing. [0003] The mid-drilling test is to use the drill pipe to send the test instrument to the test layer, seal the annular space, open the instrument, measure the temperature and pressure of the formation fluid and other parameters, and record it in the downhole instrument. Take the data, analyze it, and get the formation characteristic parameters. [0004] Completion testing is done by means of steel wire operation. The instrument is lowered into the well to test the horizon, turned on, and measures the temperature, pressure and other data of the formation fluid, which is recorded in t...

Claims

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Application Information

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IPC IPC(8): E21B47/14E21B49/00
Inventor 拓伯民
Owner BC P INC CHINA NAT PETROLEUM CORP
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