The 2020 drilling Dept. cementing Technology Seminar of China Petroleum Society was held in the ancient city of Xi 'an On November 5, 2020. Mr. Zeng was invited to give a speech on "the application of high-performance hollow glass micr
Our Glass Bubbles tested by our client, and highly praised of the quality by her.The following is the test report in detail.
Dear Customers,The Chinese Spring Festival is coming, Holywell will have a holiday from Jan 20 to Feb. 03, 2020.Please call Johnkey (tel: +86-18638176371) directly in case of urgency.Henan Holywell Co., Ltd.
The New Year 2020 is coming!Holywell's team wish you and your loved families have a wonderful & Happy Holiday!Wishing you all the blessings of peace, joy and happiness through the New Year 2020!
Oil well cementing is the process of placing cement in the annulus between the casing and the formation. The major objective of primary cementing is to provide zonal isolation in the wellbore of oil, gas and water wells to prevent fluids such as wate