As the main manager of Chuanqing Drilling Company's pressurized operation technology development, I have witnessed firsthand the development process of Chuanqing's pressurized operation technology, with equipment ranging from 0 to 29 sets, workload increasing from 0 to 500 wells per year, and output value reaching 150 million yuan. "This is what Zhang Ping, a first-class engineer of Chuanqing Drilling, said at the" Promotion of Gas Well Pressurized Operation Technology "demonstration meeting.
Pressure operation is a safe, environmentally friendly, low consumption, and efficient operation technology, which has become an indispensable means of unconventional oil and gas development. In order to accelerate the promotion and application of gas well pressure operation technology, meet the growing production demand, promote the localization of pressure operation equipment, build a large-scale and specialized gas well pressure operation team, and improve operation efficiency and benefits, the Science and Technology Management Department of the Group Company established a major special project "Promotion of Gas Well Pressure Operation Technology" in April 2020, with a project period from April 2020 to December 2021. The goal of this project is to promote more than 20 sets of gas well pressure operation equipment and supporting tools with independent intellectual property rights of the group company, upgrade and transform 6 sets of gas well pressure operation machines in use, demonstrate different types of gas well pressure operation technologies and processes for more than 1000 wells, improve technical standards and specifications, enhance the overall technical level of gas well pressure operation of the group company, achieve the replacement of imported equipment with domestic equipment, and provide technical support for the stable production and efficiency improvement of natural gas, transformation of development mode, construction of green mines, and energy security of the group company. Led by Chuanqing Drilling, the project will be reviewed after more than a year. On July 20-21, the "Promotion of Gas Well Pressure Operation Technology" demonstration meeting was held in Zigong. Nearly 90 leaders, technical managers, and frontline operators from the Science and Technology Management Department, Exploration and Production Branch, CPC Technical Service, 7 oil and gas field enterprises, 5 drilling enterprises, and Gemstone Machinery of the group company gathered together to have in-depth discussions on the development direction, market pattern, technical advantages, and other aspects of gas well pressure operation. The meeting gave full recognition and high praise to the project promotion work and the results of the demonstration meeting.
In the key link of natural gas exploration and development, developing pressurized operation technology can broaden the entire oil service industry chain. Secondly, for oilfield companies and construction parties, it is also an important measure to maintain our formation energy and improve formation recovery, "said He Yunbin, Deputy Director of the Downhole Operations Department of CPC Technical Service. Such is the case. The Chuanqing gas well pressurized operation technology, which started from scratch in 2012, has been under arduous exploration for ten years. As the leading unit of the project, Chuanqing Drilling reported this hard won achievement: 1. The overall workload of promoting pressurized operations in gas wells exceeded expectations. As of June 25, 2021, the assessment indicators for 1000 wells were exceeded, and the pressurized operation technology for shale gas, tight gas, sandstone and igneous rock, and conventional gas wells has basically taken shape. 2. Promote 16 sets of domestically produced pressurized working machines, renovate and upgrade 5 sets of imported equipment, save nearly 100 million yuan in equipment investment, and reduce procurement costs by more than 40%. Promoted the localization level of pressure operation equipment for gas wells, achieved industrial promotion and application, completely broke the passive situation of mainly relying on imported equipment from North America, and achieved an increase in equipment localization rate from 0% to 70%. 3. Promoted the overall improvement of the group company's gas well pressure operation capability, achieved a transformation in development mode, and formed more than 20 well repair processes through the improvement of "equipment+tools+technology" capabilities. Developed and matched 36 key tools for pressure operation and an EISS production information collection system for pressure operation, and increased the completion operation capability from within 30 megapascals to 50 megapascals. 4. The project has promoted the completion of 1002 wells with pressure and 53 wells with pressure maintenance, saving 126000 cubic meters of well control fluid, reducing 63000 cubic meters of sewage, saving about 1.36 billion yuan in well control fluid fees, environmental treatment fees and other costs, reducing the production cycle by more than 5000 days, increasing the EUR of a single well by 11-58%, and increasing natural gas production by about 900 million cubic meters. During the project, 12 gas well pressurized operation teams will be established, and 39 technical backbones and 86 main operators will be newly trained; The ability to operate under pressure with a wellhead pressure of up to 50 megapascals and a well depth of 6000 meters provides important technical support for maintaining formation energy in unconventional gas reservoirs, increasing and stabilizing production in old wells in conventional gas reservoirs, and reducing production costs. perational capacity has increased to 1240 wells per year, and the market share has increased from 48.9% to 73.2%. The pressure operation of drilling gas wells in the western region has achieved zero breakthroughs, and the drilling operation level and completed workload in Southwest oil and gas fields and Bohai Sea continue to create new records.
The annual operational capacity has increased to 1240 wells per year, and the market share has increased from 48.9% to 73.2%. The pressure operation of drilling gas wells in the western region has achieved zero breakthroughs, and the drilling operation level and completed workload in Southwest oil and gas fields and Bohai Sea continue to create new records. The group company is determined to continue promoting and applying this technology, making it a mainstream technology for our underground operations, improving our operational capabilities and levels, and increasing the production and lifespan of our gas wells. Therefore, the group company has organized a promotion project for this technology and is vigorously promoting its implementation, playing a greater role in improving the single well production capacity of gas wells, reducing production costs, and promoting green and low-carbon development, "said Zhao Ming, Deputy Chief Engineer of the Science and Technology Management Department of the group company, who presided over the meeting.