Formation pressure simulation device and method

Abstract

The invention provides a device and a method for simulating formation pressure and belongs to the fields of oil fields, mines and the like. The device comprises a simulating shaft (5), a formation core simulating module (6), a formation fluid simulating module (7), a formation pressure simulating module (10) and a data processing and controlling module (9). By utilizing the device, formations with different lithological characters and different permeability rates and the formation pressure can be simulated indoors, an indoor experiment of a formation pressure measuring short joint while drilling can be performed, and the formation pressure measuring work process of the formation pressure measuring short joint while drilling can be simulated on the ground to verify testing accuracy of the measuring short joint. The device can serve as a testing platform of the formation pressure measuring short joint while drilling and a developing platform of a formation pressure measuring control algorithm while drilling. The device for simulating the formation pressure solves the problems that device moving and operational maintenance are inconvenient, well drilling progress is affected, well drilling cost is increased and the like when the experiment of the formation pressure measuring short joint while drilling in a well drilling field is performed, experiment difficulty is reduced, and the economic benefit is improved.

Description

technical field [0001] The invention belongs to the fields of oil fields, mines, etc., and in particular relates to a formation pressure simulation device and method, which are used for simulating formations and formation pressures with different lithologies and different permeability. Background technique [0002] Formation pressure is an important parameter to describe reservoirs. Using formation pressure can optimize mud gravity and equivalent circulation density, prevent well kick, blowout, formation damage or accidental formation fracturing and circulation loss, and help to correct the algorithm of predicting formation pressure. Utilizing formation pressure data can improve drilling efficiency, make better field decisions, and update geological models in a timely manner. [0003] The formation pressure is measured with the formation pressure measurement tool while drilling, and the drill bit is tested immediately after drilling the formation. The drilling fluid has lit...

AI Technical Summary

Problems solved by technology

In addition, since the oil and gas well drilling site is located in a remote area, there are many difficulties in technical support for the principle and performance test of the formation pressure measurement tool while drilling at the drilling site, which increases the difficulty of the test; development, resulting in increased costs

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