Drilling and Completion Fluid Return Device for Quickly Sensing Debris Accumulation Height
A technology for drilling and completion and cuttings, which is applied in the field of drilling and completion fluid backflow devices, and can solve problems such as the inability to accurately determine the return liquid level
Active Publication Date: 2019-07-30
CHENGDU ZHIRONG ZHICHUANG INTPROP MANAGEMENT CO LTD
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Problems solved by technology
[0003] The purpose of the present invention is to provide a drilling and completion fluid backflow device that can quickly sense the accumulation height of cuttings, so as to solve the problem in the prior art that the return liquid level cannot be accurately judged after the cuttings are deposited in the mud tank, and to achieve convenient identification The purpose of the debris deposition height in the mud tank
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Embodiment 1
[0022] Such as Figure 1 to Figure 3 The shown drilling and completion fluid return device for rapid sensing of debris accumulation height includes a main tank 2 with a liquid level sensor 1, and an additional tank 3 adjacent to the main tank 2 and arranged side by side with the main tank 2. The main tank Nine flow channels 4 facing the liquid level sensor 1 are set between 2 and the attached tank 3, and the nine flow channels 4 are vertically distributed; each flow channel 4 is provided with an independent flow meter 5; the flow channel 4 The connecting end with the main groove 2 is provided with three protruding pieces 6 uniformly distributed on the inner wall of the flow channel 4 along the circumferential direction, and the protruding pieces 6 have pointed cone ends 61 facing the direction of the main groove 2 . The nine runners 4 are evenly distributed in the vertical direction. The distance between two adjacent runners 4 is equal to 5cm. The flow meter 5 is a turbine f...
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The invention discloses a drilling and completion fluid return device capable of quickly sensing stack height of rock cuttings, comprising a main channel with a level sensor and also comprises an auxiliary channel adjacent to the main channel and abreast with the main channel, and N passage ways facing the level sensors are arranged between the main channel and the auxiliary channel and are distributed vertically, wherein n is an integer greater than or equal to 2; an independent flowmeter is arranged in each passageway; the end of each passageway connected to the main channel is provided with M protrusions distributed peripherally and evenly at the inner wall of the passageway, and each protrusion has a conical end facing the main channel, wherein M is an integer greater than or equal to 2. The invention is intended to provide the drilling and completion fluid return device capable of quickly sensing stack height of rock cuttings in order to solve the problem that returned fluid level height is unable to be accurately judged after rock cuttings deposit in a slurry channel in the prior art, so that it is convenient to recognize the stack height of rock cuttings in the slurry channel.
Description
technical field [0001] The invention relates to the field of petroleum exploitation, in particular to a drilling and completion fluid backflow device for rapidly sensing the accumulation height of cuttings. Background technique [0002] Mud tank, also known as drilling fluid tank and backflow tank, is a tank that passes between the wellhead and the solid control equipment when the drilling fluid flows back from the wellhead to the sedimentation tank or mud tank during the drilling and completion of oil production. It is used to convey the mud with cuttings or formation sand returned from the well. The mud tank is the sampling place for drilling fluid logging, which is of great significance for mud logging. Liquid level sensors are installed in the mud tanks to monitor the amount of drilling fluid returned, so that it is convenient for engineers to judge whether there is overflow, lost circulation or kick, etc. at the first time. Therefore, the liquid level signal measured ...
Claims
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IPC IPC(8): E21B21/06E21B21/08
CPCE21B21/06E21B21/08
Inventor 谭正怀
Owner CHENGDU ZHIRONG ZHICHUANG INTPROP MANAGEMENT CO LTD