Method and system for intelligently measuring and adjusting underground wireless layered water distribution
An intelligent and water distribution technology, applied in signal transmission system, non-electrical signal transmission system, measurement, etc., can solve the problems of not being able to control the working status of the downhole string in time, low qualified rate of injection injection, and ineffective injection, so as to improve injection injection The effect of qualification rate, process simplification and workload reduction
Active Publication Date: 2020-01-31
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
Due to the inability to timely control the working conditions of the downhole pipe string, resulting in low qualified injection rate and invalid injection
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[0048] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.
[0049] The existing wireless water measurement and distribution technology can realize remote control, which has greatly improved in terms of advancement, convenience, and well adaptability. However, there is still the problem that the downhole adjustment and measurement actions cannot be fed back in time, and the downhole data cannot be monitored in time. and regulation. When the characteristic parameters s...
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The invention discloses a method and a system for intelligently measuring and adjusting underground wireless layered water distribution. The method comprises the following steps: obtaining one or moreto-be-adjusted water distribution commands of an underground water distributor, converting the one or more to-be-adjusted water distribution commands into a corresponding a water nozzle sound wave actuating signal, and sending the water nozzle sound wave action signal underground through a water distribution pipe column; enabling a specified underground intelligent water distributor to receive the corresponding water nozzle sound wave action signal, adjusting the interior water nozzle to an opening degree matched with the water nozzle wave actuating signal to finish layered water distribution; adopting the underground intelligent water distributor to regularly collect feedback information of a corresponding stratum to generate a sound wave vibration signal matched with the feedback information, and adopting the water distribution pipe column to send the signal to the ground in a time-sharing manner; and adopting a well mouth controller to receive the sound wave vibration signal and convert the signal into feedback information for monitoring equipment and stratum water distributing state. The method realizes wireless bidirectional communication of data and command and intelligent water distribution adjustment and control, finishes refined separated layer water injection of an oilfield well, obviously simplifies the technology and increases the injection allocation percent of pass.
Description
technical field [0001] The invention relates to the technical field of oilfield development, in particular to a method and system for wireless stratified water distribution in downhole intelligent measurement and adjustment with bidirectional signal transmission function. Background technique [0002] At present, domestic layered water injection technology can meet the needs of most reservoir types, but there are still problems of oil-water well correspondence ratio and poor water flooding effect. The existing water injection technology is mainly divided into: concentric water distribution technology, eccentric water distribution technology, cable-free water distribution technology, etc., among which concentric water distribution technology, eccentric water distribution technology, etc. It cannot meet the water injection requirements of highly deviated wells and horizontal wells, and there are problems of high construction cost, complicated process and untimely deployment. ...
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IPC IPC(8): E21B43/20E21B47/00G08C23/02
CPCE21B43/20E21B47/00G08C23/02
Inventor 何祖清何同彭汉修
Owner CHINA PETROLEUM & CHEM CORP
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