Real-time well drilling formation correction method and device

A prediction method and real-time monitoring technology, applied in drilling equipment, drilling automatic control system, measurement, etc., can solve problems such as low efficiency and low prediction accuracy, so as to avoid drilling abandoned wells, reduce drilling accidents, and improve drilling success rate effect

Inactive Publication Date: 2015-06-24
河北百冠钻井设备有限公司
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Problems solved by technology

[0003] With the technological progress and development of surveying, there are many detection technologies that can predict the formation structure, but there are only preprocessing of the key parameters collected, and only one data correction, the prediction accuracy is low, and the efficiency is low. , based on this situation, in order to avoid drilling abandoned wells and useless wells, analysis and research were carried out, reasonable solutions were formulated, and implementation

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  • Real-time well drilling formation correction method and device

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Embodiment

[0022] Before drilling, geological analysis will be carried out, corresponding to the corresponding geology, mud viscosity, mud specific gravity will be estimated, the drilling pressure, rotational speed, and drilling speed of the corresponding bottom layer will be adjusted, and then the initial data value A will be recorded in the computer. At the same time, there are pressure sensors, torque sensors and drilling speed sensors at the joint of the power head, which will monitor and transmit data in real time, and record the real-time monitored drilling pressure, torque, and speed accordingly, and then the mud pool has an automatic recording monitor to monitor the mud. According to the flow meter below, the real-time mud flow is recorded. There is a counting sensor at the wellhead to record the number of pipes that have been run, so as to calculate the length of the drilling tool and the depth of the drilled well, such as the Drill the well to 200m, compare the 200m data B recor...

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Abstract

The invention discloses a real-time well drilling formation correction method and device and relates to the technical field of well drilling detection. The real-time well drilling formation correction device comprises a signal acquisition unit, a signal processing unit, a real-time data monitoring unit, a data storage unit, a first data correction unit and a second data correction unit, wherein the signal acquisition unit acquires well drilling parameter signals and transmits the well drilling parameter signals to the signal processing unit, signals processed by the signal processing unit are transmitted to the real-time data monitoring unit, the real-time data monitoring unit transmits the signals to the second data correction unit and the data storage unit respectively, the data storage unit transmits the signals to the first data correction unit for data correction, corrected data are transmitted from the first data correction unit to the second data correction unit for processing, and signals processed by the second data correction unit are transmitted to a drilling machine control unit. By means of the real-time well drilling formation correction method and device, real-time prediction and correction are achieved, well drilling accidents are deceased, abandoned well and useless well drilling is avoided, and well drilling success rate is improved.

Description

technical field [0001] The invention relates to the technical field of drilling detection. Background technique [0002] Drilling operation sites are distributed in the wild, with many points and a wide area. It is a complex production process, often accompanied by a series of engineering abnormalities, such as blowout, lost circulation, drilling tool puncture, drilling tool breakage, etc. These abnormalities often lead to drilling engineering accidents , causing huge economic losses. The drilling process is to install sensors on relevant parts of the drilling platform to collect key parameters, such as vertical pressure, pump stroke, torque, pool volume, gas measurement, etc. These data information will directly and indirectly reflect various dynamic and static conditions of drilling production Through the comprehensive analysis and judgment of these data information, the production status of the well site can be grasped in time, and the occurrence of complex geological an...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B49/00E21B47/00E21B44/00
Inventor 尹尚平尹献文董少华
Owner 河北百冠钻井设备有限公司
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