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Drilling method and device

A technology of drilling and drilling parameters, applied in drilling equipment and methods, drilling equipment, earthwork drilling and production, etc., can solve the problem of low accuracy of drilling parameters, improve configuration accuracy, reduce drilling cost, and shorten drilling cycle Effect

Active Publication Date: 2021-01-29
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a drilling method and device, which can solve the problem of low accuracy of drilling parameters configured by related technologies

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Embodiment Construction

[0057] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0058] Embodiments of the present invention provide a drilling method, such as figure 1 As shown, the method may include:

[0059] Step 101, training the neural network based on the logging data and the logging data of the target well.

[0060] Wherein, the mud logging data includes at least one drilling parameter obtained when drilling the target well, and the logging data is used to reflect the geophysical parameter information of the target well.

[0061] Step 102, based on the trained neural network, determine the impact factor of each drilling parameter on the rate of penetration of the target well.

[0062] Among them, the penetration rate refers to the drilling footage of the drill bit per unit time during the drilling process (...

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Abstract

The invention discloses a drilling method and device, which belong to the field of oil and gas exploitation. The method includes: training a neural network based on mud logging data and logging data of the target well, the mud logging data including at least one drilling parameter obtained when performing a drilling operation on the target well, the logging data being used to reflect The geophysical parameter information of the target well; based on the trained neural network, determine the impact factor of each drilling parameter on the drilling rate of the target well for drilling operations; based on the impact factor and the at least one drilling parameter, Configuring at least one drilling parameter for performing a drilling operation on the well to be drilled, the difference between the logging data of the well to be drilled and the logging data of the target well is less than a preset threshold; based on the configured drilling parameters, performing drilling on the well to be drilled operate. The invention effectively improves the configuration accuracy of drilling parameters to be drilled.

Description

technical field [0001] The invention relates to the field of oil and gas exploitation, in particular to a drilling method and device. Background technique [0002] Shale gas is a clean and efficient energy resource and chemical raw material. When developing shale gas, it is necessary to drill from the ground to the rock formation where the shale gas is located. Due to the limitation of geological conditions, the drilling speed in the rock formation is low (for example, the drilling speed is generally 5-10 m / h). Lead to longer drilling cycle and higher development costs. The rate of penetration is jointly determined by the values ​​of multiple drilling parameters during the drilling operation, and the multiple drilling parameters include parameters such as drilling pressure, rotational speed, displacement, torque, and pump pressure. Therefore, how to configure the drilling parameters for the well to be drilled is an urgent problem to be solved in the research of shale gas d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B7/00E21B47/00G06F30/27
CPCE21B7/00E21B47/00
Inventor 孟鐾桥郭建华曹权周柏年沈欣宇
Owner PETROCHINA CO LTD