公开(公告)号：US11536125B1

公开(公告)日：2022-12-27

申请号：US17844301

申请日：2022-06-20

Applicant: Chengdu University of Technology

Inventor： Bin Yang ,  Hao Zhang ,  Yufan Guo ,  Bo Yang ,  Yin Zhong ,  Yang Yang ,  Wenjing Ma ,  Yue Li

IPC: E21B43/267 ,  B01F23/231 ,  B01F23/50 ,  E21B43/26

Abstract: The present invention discloses a method for proppant suspension and suspension parameter optimization based on bubble bridge effect, comprising: select a proppant and hydrophobically modify its surface to obtain a hydrophobically surface-modified proppant; prepare a bubbly fracturing base fluid; make the first optimization of the base fluids according to the average radius of the proppant and the average radius of the bubbles of the base fluids; optimally select the base fluids selected for the second time according to the interaction energy between the proppant particle and the bubble after the hydrophobically surface-modified proppant mixed with the base fluid; the basic parameters of the bubbly fracturing base fluid selected at the third time were used for the perfect selection for proppant suspension. The present invention establishes a procedure on experimental evaluation and parameter calculation optimization by suspending fracturing proppant with the bubble bridge effect on the hydrophobic surface.

公开(公告)号：US12292411B2

公开(公告)日：2025-05-06

申请号：US18888210

申请日：2024-09-18

Applicant: Chengdu University Of Technology

Inventor： Jiping She ,  Yunfei Wang ,  Furong Gong ,  Wenjing Ma ,  Shiyu Zhang ,  Gege Teng ,  Huimin Li

IPC: G01N3/02 ,  G01N33/24

Abstract: The provided are a device and method for measuring a bonding strength between a contaminated rock surface and a solidified material. The device includes a fixing and measuring assembly and four rock slabs enclosing a rectangular prism, where outer surfaces of the four rock slabs are fitted to two transverse support plates and two longitudinal support plates, respectively; the two longitudinal support plates are arranged between the two transverse support plates; upper and lower ends of the rock slabs are provided with an upper cover and a bottom plate, respectively; the upper cover and the bottom plate are detachably fixed to the two transverse support plates, respectively; the two transverse support plates are detachably fixed to each other through a second screw; a hydraulic device is provided among the four posts; and a movable end of the hydraulic device is provided with a supporting airbag.

公开(公告)号：US12263453B1

公开(公告)日：2025-04-01

申请号：US18897048

申请日：2024-09-26

Applicant: Chengdu University Of Technology

Inventor： Jiping She ,  Wenjing Ma ,  Furong Gong ,  Yunfei Wang ,  Gege Teng ,  Shiyu Zhang ,  Huimin Li

IPC: B01F23/00 ,  B01F23/50 ,  B01F23/53 ,  B01F27/90 ,  B01F29/83 ,  B01F35/212 ,  B01F35/22 ,  B01F35/31 ,  B01F35/32 ,  B01F35/33 ,  C09K8/50 ,  B01F35/30 ,  B01F101/49 ,  E21B41/00

Abstract: The provided are a thickening device and method for uniform solidification of composite lost circulation material made up of liquid and granular lost circulation materials. The thickening device includes a base. The base is provided with a side wall; an upper end of the side wall is provided with a detachable top cover; the base, the side wall, and the top cover form a sealed chamber; the base is provided with a rotating support platform; the rotating support platform is provided with a detachable slurry cup; the slurry cup is provided therein with agitating shafts; the agitating shafts each are provided with a blade; a top end of the agitating shaft is connected to a threaded rod through a ball head connector; an upper end of the agitating shaft is provided with a second gear, and the threaded rod is provided with a second limit platform.