Deep water drilling data measuring and recording system and method
A technology for data measurement and deepwater drilling, which is applied in the directions of measurement, earthwork drilling and production, wellbore/well components, etc. It can solve the problem of zero acquisition rate of monitoring data and achieve the effect of fast transmission speed and high acquisition rate of measurement data
Active Publication Date: 2014-02-05
CHINA NAT OFFSHORE OIL CORP +3
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Problems solved by technology
Although high-speed data acquisition can be achieved at the outlet of the drilling platform riser, due to the high pressure at the depth of the mudline under deep-water drilling conditions, the characteristic parameters of fluid flow are quite different from those at the platform outlet. The system is in a paralyzed state, and the monitoring data acquisition rate is close to zero
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[0038] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.
[0039] The deep water drilling data measurement and recording system of the present invention is used to record the position of the wellhead that flows through the wellhead during a normal drilling period of the drilling platform, or during the whole process of abnormal drilling such as blowout and overturning of the drilling platform, and during a certain period of time thereafter. Mud and / or hydrocarbon flow regimes in annulus.
[0040] Such as figure 1 As shown, the deepwater drilling data measurement and recording system of the present invention includes a measurement transmitting device 800 and a receiving device 500 . Wherein, the measurement transmitting device 800 is fixedly installed at the wellhead of the wel...
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The invention discloses a deep water drilling data measuring and recording system and a deep water drilling data measuring and recording method. The deep water drilling data measuring and recording system comprises a measuring emitting device and a receiving device, wherein a detection device, a recording device, a back-transmitting device and a control device are arranged in a casing in the measuring emitting device, the detection device collects and processes the slurry or oil gas speed and gas content information and obtains measuring data, the back-transmitting device sends the measuring data to the receiving device, and the control device monitors the measuring data in real time, judges whether the measuring data exceeds the threshold value or not, controls the detection device to improve the information collecting frequency when the threshold value is exceeded, controls the recording device to store the measuring data, and controls the back-transmitting device for sending the measuring data to the receiving device. The deep water drilling data measuring and recording system realizes the real-time collection and analysis on the measuring data, the transmission speed is higher than that of the existing slurry pulse mode, and in addition, the measuring data obtaining speed is higher than that of the platform data collecting equipment. When major accidents occur, the data obtaining function can be maintained, and in addition, the back transmission of the data can be realized through the data receiving device carried by carriers such as underwater robots.
Description
technical field [0001] The invention relates to the technical field of deepwater drilling applications, in particular to a deepwater drilling data measurement and recording system and method. Background technique [0002] In April 2010, in the U.S. Gulf of Mexico, the "Deepwater Horizon" drilling platform rented by BP Petroleum Company exploded and caught fire. The accident caused 17 serious injuries and 11 deaths, causing serious pollution in the Gulf of Mexico and coastal areas. After the accident, due to the explosion and overturning of the drilling platform, the on-site data was severely damaged, and it was impossible to analyze the cause of the accident in a timely and accurate manner. In addition, crude oil is continuously ejected from the subsea wellhead, and there is no metering device at the wellhead, so it is impossible to accurately estimate the amount of crude oil leakage, which brings a lot of trouble to later rescue, environmental pollution assessment and pollu...
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IPC IPC(8): E21B47/12E21B47/26E21B47/00
Inventor 刘书杰李轶明张俊斌耿亚楠李相方朱磊石军太
Owner CHINA NAT OFFSHORE OIL CORP