Petrochina's First Mid-Deep U-Shaped Well Geothermal Project Has been Successfully Tested

Petrochina's First Mid-Deep U-Shaped Well Geothermal Project Has been Successfully Tested

On August 27, the reporter learned from the 10 Oil Production Plant of Daqing Oilfield that the geothermal development test project of the R3-U1 well group —— U-shaped geothermal project of CNPC has achieved good trial operation effect, marking that the "heat without water intake technology" of U-shaped Wells has reached the expected target.

"The 'heat without water intake technology' is through the drilling machine to 2000 meters to 3000 meters deep hot rock layer drilling, forming a U-shaped drilling hole, and then use water in the U-shaped space circulation, the underground deep geothermal energy replacement to the ground, for heating and other diversified applications."Ten oil production plant planning department deputy director Shi Laiyuan said.

On August 6, the hot R3-U1 well group began trial operation. The system operation is safe and stable, the grinding resistance is small, and the verification and docking effect meet the design requirements. A series of management and technical experiences such as "DRMTS long distance needle piercing" and "whole well temperature monitoring" have been formed, which fully demonstrates the science and feasibility of this technology."U-shaped geothermal Wells have a long service life, low operation cost, and significant social, environmental and economic benefits."Daqing oilfield senior expert Liang Wenyi told reporters.

According to the introduction, the hot R3-U1 well group geothermal development test project will be officially put into operation on October 15, heating for half a year, at the same time, take all the accurate data, perfect the geological model, the implementation of capacity change law, to provide reliable technical support for the second phase of trial demonstration and demonstration, scale application.