Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM D4520-13
• Năm ban hành / Publication date: 2013
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Standard Practice for Determining Water Injectivity Through the Use of On-Site Floods
• Chỉ số phân loại Quốc tế (ICS) / By field: 13.080.40 - Ðặc tính thuỷ học của đất
• Số trang / Page: 7

Phạm vi áp dụng / Scope of standard

1.1 This practice covers a procedure for conducting on-site core flood tests to determine the filtration and chemical treatment requirements for subsurface injection of water.^{2, 3}

1.2 This practice applies to water disposal, secondary recovery, and enhanced oil recovery projects and is applicable to injection waters with all ranges of total dissolved solids contents.

1.3 The values stated in SI units are to be regarded separately as standard. The values stated in each system are mathematical conversions and may not be exact equivalents; therefore, each system shall be used independently of the other.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.