A deep well high temperature while drilling temperature detection device

Abstract

The invention relates to a deep well high-temperature while drilling temperature detection device, which comprises a fixer, a vacuum heat insulation and thermal isolation tube and a temperature detection mechanism in sequential connection. The whole device is fixed on a slurry filtering screen arranged in a drill pipe through the fixer; the fixer is a cylinder lug boss with the smaller lower side and the larger upper side; two water passing notches are formed in the cylinder walls of a hollow large cylinder; the vacuum heat insulation and thermal isolation tube is a vacuum heat insulation tube combined by three layers of pipes; a temperature detection signal conditioning circuit board and a power supply of the temperature detection mechanism are arranged at the innermost layer of the vacuum heat insulation and thermal isolation tube; the vacuum heat insulation and thermal isolation tube is used for reducing the influence of high temperature and high pressure in a deep well during the drilling on the signal conditioning circuit board and the power supply; when the device is used, the underground high-temperature detection and the data processing and storage are realized by the temperature detection mechanism; a drill pipe is lifted to the ground after completing once drilling exploration; the signal conditioning circuit board is taken out to be connected with a computer; and temperature data is read. The device has the advantages that the work is stable; the deep well high-temperature while drilling temperature detection is realized; and the problem of unknown underground temperature in the drilling engineering is solved.

Description

technical field [0001] The invention relates to a deep well high temperature while drilling temperature detection device, specifically a deep well high temperature while drilling temperature detection device which can be installed on the mud filter in the drill pipe, and can monitor the temperature in the deep well while drilling. Detection, acquisition and storage are carried out. After drilling, the drill pipe is lifted to the ground, the signal conditioning circuit board in the device is taken out, and the temperature data detected and stored in the well is read by the ground computer. Background technique [0002] In oil and gas exploration and development, formation temperature is an important parameter to describe the characteristics of oil and gas reservoirs, an important parameter in exploration, drilling, logging, completion and production engineering, and an important basis for evaluating formation information. At the same time, in deep core drilling, the high temp...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing temperature detection device while drilling cannot meet the working conditions of high pressure and high temperature in deep wells, and to provide a temperature detection device for high temperature while drilling deep wells, which can not only facilitate the detection of temperature while drilling, but also meet the The complex working conditions of high temperature in deep wells ensure the accuracy of temperature detection while drilling

Images