Drilling Fluid Testing Equipment

Abstract

The invention provides a drilling fluid detection equipment, which comprises: a storage cylinder, a sliding tube, a first slider, a second slider, a stop spring and a detection device; the first limit block faces the second limit One side of the position block is provided with a first slope; the side of the second limit block facing the first limit block is provided with a second slope; the first slide block and the second slide block are both arranged in the sliding tube; the detection device and The rear ends of the first slider and the second slider are connected to detect the backward movement distance of the first slider and the second slider; inject different pressures of drilling fluid into the storage cylinder, according to the first slider obtained by the detection device Calculate the different actual distances between the first slider and the second slider based on the backward moving distance of the first slider and the second slider, and select the drilling fluid pressure corresponding to the actual distance close to the real width of the fracture in the downhole rock formation as the actual drilling fluid pressure. The pressure of the drilling fluid can accurately determine the pressure of the drilling fluid to prevent the pressure of the drilling fluid from being too high or too low.

Description

technical field [0001] The invention relates to the technical field of oil exploration experimental equipment, in particular to drilling fluid testing equipment. Background technique [0002] In the process of oil extraction, it is necessary to drill the well pipe underground first, and the well pipe extends underground to the oil reservoir; during the drilling process, the drill bit will damage the underground rock formation, and then form cracks on the rock formation, so that the drilling fluid flows into the crack The flow causes the loss of drilling fluid; therefore, how to seal the fractures on the rock formation to avoid the loss of drilling fluid has become a research hotspot. [0003] In the prior art, the drilling fluid is often mixed with appropriate particles to seal the cracks on the rock formation; wherein the particles are sand or stones with a certain particle size. When the drill bit rotates to drill the well pipe underground, the drilling fluid with a certa...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a drilling fluid detection device to solve the technical problems in the prior art that it is difficult to accurately determine the pressure of the drilling fluid, and it is easy to cause the pressure of the drilling fluid to be too high or too low

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