US 12,000,766 B2
Automatically-cleanable thickening performance evaluation instrument for drilling lost circulation materials
Jiping She, Chengdu (CN); Hao Zhang, Chengdu (CN); Yang Yang, Chengdu (CN); Bin Yang, Chengdu (CN); Yang Li, Chengdu (CN); Jianjun Ni, Chengdu (CN); Shiyu Zhang, Chengdu (CN); and Ying Zhong, Chengdu (CN)
Assigned to CHENGDU UNIVERSITY OF TECHNOLOGY, Chengdu (CN)
Filed by Chengdu University of Technology, Chengdu (CN)
Filed on Feb. 15, 2022, as Appl. No. 17/671,607.
Claims priority of application No. 202110776765.4 (CN), filed on Jul. 9, 2021.
Prior Publication US 2023/0008746 A1, Jan. 12, 2023
Int. Cl. G01N 11/00 (2006.01); B08B 9/08 (2006.01); G01N 11/14 (2006.01); E21B 21/00 (2006.01)
CPC G01N 11/14 (2013.01) [B08B 9/0808 (2013.01); B08B 2209/08 (2013.01); E21B 21/003 (2013.01); G01N 2011/0006 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An automatically-cleanable thickening performance evaluation instrument for drilling lost circulation materials (LCMs), comprising a cleaning device, a kettle body, a thickening motor, a heating component, a test ending component, a top cover, and a bottom cover, wherein
upper and lower ends of the kettle body are both opened; the kettle body is arranged in a third bearing inner race, a third bearing outer race is connected to a first limb, and the first limb is configured to limit a position of the kettle body; the kettle body is detachably connected to the thickening motor and driven by the thickening motor to rotate;
the top cover arranged in a first bearing inner race is configured to seal the upper end of the kettle body, a first bearing outer race is connected to a third limb, and the third limb is configured to limit a position of the top cover; a sensor mounting hole for mounting a sensor and a pressurized sealing hole for pressurizing an inside of the kettle body are formed on the top cover;
the bottom cover arranged in a second bearing inner race is configured to seal the lower end of the kettle body, a second bearing outer race is connected to a second limb, and the second limb is configured to limit a position of the bottom cover; a second gantry is provided at a bottom of the second bearing outer race, and the second gantry is provided with a second support column for supporting the bottom cover;
the test ending component comprises the first bearing outer race, a magnetic coupling, and a touch switch, wherein a first gantry is provided on the first bearing outer race, and the touch switch is arranged on the first gantry; an inner magnet of the magnetic coupling is movably arranged on a lower surface of the top cover, and the inner magnet is axially rotatable relative to the top cover, and a lower surface of the inner magnet is connected to a blade; an outer magnet of the magnetic coupling is connected to a torque device, the torque device is arranged on the first gantry, and the outer magnet is provided with a pointer for triggering the touch switch; the first gantry is provided with a first support column for supporting the top cover;
the heating component comprises a heating coil and an electrical connection ring, wherein the heating coil and the electrical connection ring are arranged on the kettle body, the heating coil is connected to the electrical connection ring, and the electrical connection ring is slidably connected to a power supply brush and is connected to a power supply through the power supply brush;
a fixed shaft runs through the first limb and is fixed on a base; a first rotating platform is provided at a tail end of the first limb, the first rotating platform is located in a first rotating cavity, and the first rotating cavity is provided with a first rotating motor for driving the first rotating platform to rotate left or right; the first rotating cavity is connected to a first end of a first column, a second end of the first column runs through the base, and a first lifter is configured for height adjustment of the first column;
the fixed shaft runs through the second limb and is fixed on the base; a second rotating platform is provided at a tail end of the second limb, the second rotating platform is located in a second rotating cavity, and the second rotating cavity is provided with a second rotating motor for driving the second rotating platform to rotate left or right; the second rotating cavity is connected to a first end of a second column, a second end of the second column runs through the base, and a second lifter is configured for height adjustment of the second column;
the cleaning device comprises a cleaning cylinder and a cleaning motor; a brush head is provided on a rotating shaft of the cleaning motor, and the cleaning motor is fixed on a second support arm; the cleaning cylinder is arranged on a side of the base; and a third lifter is provided on a side of the cleaning cylinder, and the second support arm moves up and down through the third lifter; when the kettle body is directly below the brush head, the brush head is lowered into the kettle body for rotating and cleaning.