Lost circulation and kick monitoring system and monitoring method
A monitoring system and lost circulation technology, applied in wellbore/well components, measurement, earth-moving drilling, etc., can solve the problem of long reaction time, inability to monitor well kick and lost circulation accident sensitively, slow change of mud filling level, etc. question
Active Publication Date: 2018-08-24
北京德美高科科技股份有限公司
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Problems solved by technology
This method of monitoring the liquid level of the mud tank has great disadvantages: First, the mud must flow from the wellhead through the overflow prevention pipe through the vibrating screen, and then flow back to the mud tank through the mud tank, so that the response required for monitoring well kick and lost circulation The time is long; secondly, due to the large volume of the mud tank, after a well kick or a well loss occurs, the mud filling level changes slowly, and the well kick and well loss accidents cannot be monitored sensitively
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[0017] The lost circulation and kick monitoring system and monitoring method of the present invention will be described in detail below with reference to the accompanying drawings.
[0018] figure 1 The reference signs involved in are as follows:
[0019] 1-well sealing device; 2-four-way internal and external valves; 3-pressure differential liquid level sensor; 4-drill pipe movement state detection device; 5-laser or ultrasonic sensor; 6-guided wave liquid level sensor; 7-outer clamp Type flowmeter; 8-laser or ultrasonic sensor; 9-electromagnetic wave flowmeter; 10-electromagnetic wave flowmeter; 11-drilling riser; 12-drill pipe; -grouting tank; 17-mud tank; 18-mud tank; 19-vibrating screen; 20-grouting pump; 21-mud pump; 22-grouting pipeline 22; 23-computer; 24-speaker; 25-ground pit; 26 -Upright pipe; 27-Upright pipe; 28-U-shaped pipe bottom pipe; 29-Mud logging gas measuring probe; 30-Exhaust pipe; Stirring rod of blade; 35-Sand washing pump inlet; 36-Motor or electric ...
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The invention relates to a well leakage and well kick monitoring system and monitoring method for drilling and completion operation.The well leakage and well kick monitoring system comprises a drilling and completion inlet flow monitoring part, a drilling and completion outlet flow monitoring part, a drilling and completion wellhead spill-proof tube liquid level height monitoring part, an automatic grouting part and a drilling tool motion state detecting device and computer and software and hardware control part.By means of the well leakage and well kick monitoring system, well kick and well leakage accidents can be monitored rapidly and sensitively.
Description
technical field [0001] The invention relates to a lost circulation and kick monitoring system used in drilling operations, in particular to a downhole lost circulation and kick monitoring system and monitoring method. Background technique [0002] In the process of oil drilling and completion, well kick and lost circulation are frequent accidents, which bring huge loss of personnel and financial resources to the oil industry. At present, the mud level is mainly monitored in the ground mud tank in China. An increase in the mud level in the mud tank indicates a well kick, and a decrease in the mud level indicates a well loss. This method of monitoring the liquid level of the mud tank has great disadvantages: First, the mud must flow from the wellhead through the overflow prevention pipe through the vibrating screen, and then flow back to the mud tank through the mud tank, so that the response required for monitoring well kick and lost circulation The time is long; secondly, d...
Claims
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IPC IPC(8): E21B47/10E21B21/08
CPCE21B21/08E21B47/10
Inventor 余代美李文生赵思军刘祚才胡建华舒亮饶晓东盛勇韦谷运罗朝东
Owner 北京德美高科科技股份有限公司