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Real-time monitoring device and detection method for dynamic load of wellbore string

A dynamic load and real-time monitoring technology, which is applied in measurement, earthwork drilling, wellbore/well components, etc., can solve problems such as dynamic load lag and difficult load change characteristics

Active Publication Date: 2016-08-24
员增荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the pipe string is installed in the wellbore and is in a closed pressure environment, it is difficult to realize real-time understanding of the load change characteristics of the wellbore pipe string or the change of dynamic load is lagging behind

Method used

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  • Real-time monitoring device and detection method for dynamic load of wellbore string
  • Real-time monitoring device and detection method for dynamic load of wellbore string

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1. In this device, the wellhead cross 1 and the casing gate 2 are connected by flanges, the wellhead cross 1 and the wellhead bottom flange 3 are connected by bolts, and the wellhead 4 is connected with a casing collar , the casing collar connected on the wellhead 4 and the wellhead bottom flange 3 on the upper side are threaded; the casing collar connected on the wellhead 4 and the lower casing collar 8 are threaded. The pipe collar 8 is fixed on the annular steel plate 9; the load measuring device 5 is fixed on the surface connected to the casing collar 1 of the wellhead 4; the data transmitting device 6 is connected with the load measuring device 5, and the load measuring device 5 and the data processor 10 are connected by a signal The data processor 10 and the computer 11 are connected by the signal line 7 .

Embodiment 2

[0020] Embodiment 2, wherein casing coupling one is replaced by flange one.

Embodiment 3

[0021] Embodiment 3, the load measuring device 5 is formed by connecting the data transmitting device 6, the load measuring piece 12, the power supply 13, the circuit connection line 14, and the circuit board 15, and the load measuring piece 12 is uniformly distributed in 1-12 in the axial direction of the wellbore , each load measuring piece 12 is connected to the power supply 13, the circuit board 15, the data transmitting device 6, and the signal line 7 respectively through the circuit connection line 14; One up, sealing ring 17 is arranged in the middle of it to seal.

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Abstract

The real-time monitoring device and detection method for the dynamic load of the wellbore string is a real-time monitoring technology for the dynamic load of the string during the construction of oil and gas wells, shale gas wells, coalbed gas wells, salt wells and other wells. Among them, the wellhead cross and the casing gate are connected by flanges, the wellhead cross and the wellhead bottom flange are connected by bolts, the casing collar is connected to the wellhead, and the casing collar connected to the wellhead and the upper side The bottom flange of the wellhead is threaded; the casing collar connected to the wellhead and the lower casing collar are threaded; the casing collar is fixed on the ring-shaped steel plate; the load measuring device is fixed on the wellhead casing joint. The surface of the hoop; or the load measuring device is fixed on the surface connecting the wellhead flange; the data transmitting device is connected to the load measuring device, the load measuring device is connected to the data processor by a signal line, and the data processor is connected to the computer by a signal line.

Description

technical field [0001] The invention relates to a real-time monitoring technology of the dynamic load of the pipe string used in the production and production stimulation measures of wells such as oil and gas wells, shale gas wells, coalbed gas wells, and salt wells in oil fields, especially the real-time monitoring device and detection of the dynamic load of the well bore pipe method. Background technique [0002] In the production process of oil and gas water wells, shale gas wells, coalbed methane wells, salt wells and other wells, in order to improve the production and development effect of the well, it is necessary to carry out measures such as fracturing, acidizing, and profile control on the wellbore reservoir. In the process of wellbore string load, it is very helpful to understand the change of wellbore string load in time for the analysis of downhole string conditions and measures; for wells that are in production, it is necessary to analyze the production conditio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/00
Inventor 员增荣
Owner 员增荣
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