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Well drilling overflow leakage working condition prediction method and device

A forecasting method, forecasting device technology, used in surveying, earthmoving, wellbore/well components, etc.

Pending Publication Date: 2020-10-27
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through the research on overflow and other drilling risk early warning at home and abroad, it is found that on the one hand, on-site overflow and leakage monitoring needs to rely on the manual analysis of on-site engineers; In the exploratory stage, with a large research space

Method used

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  • Well drilling overflow leakage working condition prediction method and device
  • Well drilling overflow leakage working condition prediction method and device
  • Well drilling overflow leakage working condition prediction method and device

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Embodiment Construction

[0061] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0062] This application provides a drilling overflow and loss working condition prediction system, the system includes a drilling overflow and loss working condition prediction device, see figure 1 , this device can be a kind of server A1, and this server A1 can communicate with a plurality of drilling data receiving terminals B1, and the server A...

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Abstract

The invention provides a well drilling overflow leakage working condition prediction method and device. The method comprises the steps of acquiring well drilling data of a to-be-predicted working condition; and carrying out well drilling overflow leakage working condition prediction by using the well drilling data of the to-be-predicted working condition and a pre-established deep belief network model. The invention can establish the method capable of allowing a person to timely discover overflow and leakage well drilling working conditions, so that effective measures for coping with and treating overflow and leakage complex working conditions are taken in advance in actual production, and well drilling losses caused by the complex working conditions is reduced.

Description

technical field [0001] The invention relates to the field of petroleum and natural gas, in particular to a method for predicting dangerous working conditions in the field of drilling, and in particular to a method and device for predicting working conditions of drilling overflow and leakage. Background technique [0002] With the development of oil exploration and development to deep and complex formations, the safety problem of narrow density window drilling becomes more and more obvious. Drilling risks, especially overflow and lost circulation occur frequently, and the requirements for well control also increase accordingly. Timely warning of risks is very important. According to the statistics of more than one hundred wells in Sichuan, the time between overflow discovery and blowout is very short, 67% of them are within 30 minutes, and 50% of them are within 10 minutes, which is understandable Unfortunately, once a drilling accident occurs, it takes a lot of time to deal...

Claims

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Application Information

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IPC IPC(8): E21B47/10E21B47/117
CPCE21B47/10
Inventor 付加胜刘伟周英操周泊奇罗良波翟小强王国伟梁磊李鹏飞
Owner BC P INC CHINA NAT PETROLEUM CORP