Key drilling technologies for Well Chuanmaye 1： Geological survey of shale gas in the southwest margin of Sichuan Basin

doi:10.12143/j.ztgc.2025.02.002

Home > Archive>Volume 52, Issue 2, 2025 >10-19. DOI:10.12143/j.ztgc.2025.02.002

Key drilling technologies for Well Chuanmaye 1： Geological survey of shale gas in the southwest margin of Sichuan Basin
DOI:
                        10.12143/j.ztgc.2025.02.002
                    
CSTR:
                        
                    
Author:
                        ZHANG Tongde1,2ZHANG Tongde
The Institute of Exploration Technology, CAGS, Chengdu Sichuan 611734, China;Technology Innovation Center for Intelligent Drilling, China Geolocial Survey, Chengdu Sichuan 611734, China
Find this author on All Journals
Find this author on BaiDu
Search for this author on this site
CHENG Yuehan1,2CHENG Yuehan
The Institute of Exploration Technology, CAGS, Chengdu Sichuan 611734, China;Technology Innovation Center for Intelligent Drilling, China Geolocial Survey, Chengdu Sichuan 611734, China
Find this author on All Journals
Find this author on BaiDu
Search for this author on this site
ZHAO Zhan3ZHAO Zhan
Chengdu Center of China Geological Survey, Chengdu Sichuan 610218, China
Find this author on All Journals
Find this author on BaiDu
Search for this author on this site
QIAN Feng1,2QIAN Feng
The Institute of Exploration Technology, CAGS, Chengdu Sichuan 611734, China;Technology Innovation Center for Intelligent Drilling, China Geolocial Survey, Chengdu Sichuan 611734, China
Find this author on All Journals
Find this author on BaiDu
Search for this author on this site
FAN Lasheng1,2FAN Lasheng
The Institute of Exploration Technology, CAGS, Chengdu Sichuan 611734, China;Technology Innovation Center for Intelligent Drilling, China Geolocial Survey, Chengdu Sichuan 611734, China
Find this author on All Journals
Find this author on BaiDu
Search for this author on this site
LU Junze3LU Junze
Chengdu Center of China Geological Survey, Chengdu Sichuan 610218, China
Find this author on All Journals
Find this author on BaiDu
Search for this author on this site

                    
Affiliation:1.The Institute of Exploration Technology, CAGS, Chengdu Sichuan 611734, China;2.Technology Innovation Center for Intelligent Drilling, China Geolocial Survey, Chengdu Sichuan 611734, China;3.Chengdu Center of China Geological Survey, Chengdu Sichuan 610218, China
Clc Number:TE242;P634.5
Fund Project:

Article

Figures

Metrics

Reference

Cited by

Materials

Comments

Abstract:

The potential of oil and gas resources in southwestern margin of the Sichuan Basin is abundant， however the geological structure is complex and lack of adjacent well data， making difficult drilling construction. Well Chuanmaye 1 is a shale gas geological survey parameter well deployed in the west wing of the Wuzhishan structural belt in southwest Sichuan. The designed depth of the well is 3400m， and the actual completed drilling depth is 3635m. A temporary closure was adopted when drilling to 3437.58m due to the complexity， and side tracking was carried out from 2818m to the completed drilling depth. In response to drilling difficulties， multiple key drilling technologies are summarized， including the handling of small fish accidents in large-diameter boreholes， efficient and rapid drilling with long open holes and large diameters， open hole side tracking in complex formations， and silicon potassium based polymer anti-sloughing drilling fluid systems. These technologies solved the practical problems， ensured the geological objectives， and achieved significant application effects， which can provide reference for similar drilling projects in the same region and support the new round of strategic action for prospecting breakthrough.

Key words:geological survey of shale gas;complex geological formations;key drilling technologies;side tracking in open hole;Well Chuanmaye 1;southwest Sichuan region

Get Citation

Copy

Article Metrics

Abstract:
PDF:
HTML:
Cited by:

History

Received:December 26,2024
Revised:February 11,2025
Adopted:February 12,2025
Online: March 25,2025
Published:

Home

About Journal

Business News

Editorial Board

Instruction for Author

Contents Download

Academic Forum

Ethics Statement

Contact Us

中文

Get Citation

Share

Article Metrics

History

Article QR Code