3 results about "Ovality" patented technology

A method for determining rock mechanical properties is disclosed. The method includes obtaining, at a selected depth location of a borehole, initial radial geometry measurements of the borehole and initial borehole fluid pressure measurements of a borehole fluid, perturbing a pressure of the borehole fluid, obtaining, in response to perturbing the pressure of the borehole fluid and at the selected depth location, dynamic radial geometry measurements of the borehole, analyzing a difference of the initial radial geometry measurements and the dynamic radial geometry measurements to determine differences in radial and axial components of strain tensor at a surface of the borehole at the selected depth location, determining the rock mechanical properties at the selected depth location by analyzing the differences in the radial and axial components of the strain tensor, and facilitating, based at least on the determined rock mechanical properties, a drilling operation of the subterranean formation.

The application provides a composite pipe extrusion process synergistic control method, device, equipment and medium, which comprises the following steps: establishing a benchmark process parameter library and a pipe size prediction model; collecting process parameters; adjusting heating and cooling power according to extrusion temperature and melt pressure to stabilize the extrusion working condition; inputting traction speed, vacuum degree and cooling water temperature into the prediction model to obtain a predicted size, calculating a compensation amount of the traction speed and the vacuum degree after weighted fusion of the predicted size and the actually measured size, and updating the set value; performing adaptive adjustment of the vacuum degree and the traction speed, and performing segmented cooling synergistic control combined with the actually measured size to correct the ovality and internal stress; performing traction cutting synchronous control according to the cumulative pipe length and the outer diameter deviation, determining a cutting compensation position, and performing cutting. The application realizes synergistic control of multiple process parameters, and significantly improves the size precision, production stability and yield of the composite pipe.

The utility model discloses a kind of automatic feeding devices for metal pipe processing, and the roundness correction mechanism includes support seat two, the middle part upper end of support seat two is hollow, and the surface of support seat two and located hollow place outside side is rotationally connected with swivel ring, the front of swivel ring is rotationally connected with several movable frames, each movable frame is equidistantly arranged around swivel ring surface, and the inner wall of each movable frame is also slidably connected with movable rod, one end of movable rod located swivel ring outside side is rotationally connected with support seat two, and the other end inner wall of movable rod is rotationally connected with roundness correction wheel, the outer wall of movable rod is also fixedly installed with motor, the output shaft of motor passes through movable rod and is fixedly connected with roundness correction wheel rotation axis, and the pipeline to be processed can pass through the support seat two in roundness correction mechanism, and the outer wall of pipeline is extruded roundness correction by the roundness correction wheel of support seat two periphery, and then the ovality of metal pipeline is effectively adjusted, in addition, the spacing between roundness correction wheel can be adjusted in size, and then it is suitable for the roundness correction of different diameter metal pipeline.