Bottom drilling toll kinetic parameter signal processing circuit and processing method
A signal processing circuit and dynamic parameter technology, which is applied to the automatic control system of drilling, earthwork drilling, drilling equipment, etc., and can solve the problems of complex environment, many types of measurement, and difficult to meet the requirements of circuit structure and method.
Pending Publication Date: 2018-11-16
CNPC BOHAI DRILLING ENG
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Problems solved by technology
However, the measurement of downhole dynamic parameters of bottom drilling tools has the characteristics of many types of measurement, large amount of data, complex environment, and high precision requirements. The circuit structure and method used for ground signal acquisition and processing are difficult to meet the requirements
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[0032] The bottom hole dynamic parameter signal processing circuit and processing method provided by the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0033] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0034] Such as figure 1 As shown, the bottom hole dynamic parameter signal processing circuit provided by the present invention includes:
[0035] The downhole dynamics parameter measurement unit 100, the multi-parameter signal acquisition unit 200, the signal conditioning unit 300, the analog-to-digital signal conversion unit 400, the bus buffer unit 500, the central processing unit 600 and the downhole power comprehensive management unit 700; wherein the downhole dynamics parameter The measurement unit 100 is connected to the multi-parameter signal acquisition unit 200, the mult...
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The invention discloses a bottom drilling toll kinetic parameter signal processing circuit and method. The circuit comprises an underground kinetic parameter measuring unit, a multi-parameter signal collecting unit, a signal adjusting unit, a simulation-digital signal transformation unit, a bus buffering unit, a central processing unit and an underground power source integrated management unit. The bottom drilling toll kinetic parameter signal processing circuit and method have the beneficial effects that the underground multi-parameter measuring unit conducts bit pressure, torsion, revolvingspeed, vibration, and environment pressure and temperature measurement; the arrangement of the multi-parameter signal collecting unit achieves multi-channel and multi-parameter synchronous collection;the signal adjusting unit achieves signal early stage pretreatment; measurement signals are subjected to datum quantitative processing by the simulation-digital signal transformation unit; the bus buffering unit achieves temporary storage and buffering between the front end collection data and rear end central processing unit; and during multi-channel and multi-parameter signal collection, important significance is achieved to improve the stability of a circuit and adaptability of the complex environment on the premise of ensuring measurement accuracy.
Description
technical field [0001] The invention belongs to the technical field of oil and gas drilling, in particular to a bottom drilling tool dynamic parameter signal processing circuit and processing method. Background technique [0002] In the field of petroleum drilling, the downhole dynamic parameters are measured, stored and transmitted through the sensors and signal processing circuits installed on the bottom drilling tool, which is very important for understanding the downhole working conditions and mastering the performance transformation of each parameter in the downhole working process of the bottom drilling tool It is of great significance to carry out fault diagnosis and performance optimization of bottom drilling tools. However, the measurement of downhole dynamic parameters of bottom drilling tools has the characteristics of many types of measurement, large amount of data, complex environment, and high precision requirements. The circuit structure and method used for g...
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Patent Timeline
Login to View More IPC IPC(8): E21B44/00E21B45/00E21B47/06E21B47/07G05B19/042
CPCG05B19/0423E21B44/00E21B44/04E21B45/00E21B47/06G05B2219/21137E21B47/07
Inventor 李绍辉白大鹏范永涛王帅杨春张长春
Owner CNPC BOHAI DRILLING ENG