API RP 87 is a practical reference for the field analysis of crude oil samples containing from two to fifty percent water by volume. This recommended practice helps professionals understand how to evaluate crude oil samples in a field setting where water content can affect interpretation, handling, and downstream decision-making. For operations teams, laboratory support staff, and technical managers, the document can be useful when consistent sample analysis and repeatable field workflows matter. As a 1st edition API recommended practice from 2007, it offers guidance buyers may use to support technical review and day-to-day operational consistency.

Purpose of API RP 87

The purpose of API RP 87 is to provide practical guidance for field analysis of crude oil samples with moderate water content, using a recognized API recommended practice as the reference basis. It is intended to support real-world application rather than high-level theory, helping users approach sample evaluation in a consistent and technically defensible way. In oil and gas operations, that kind of guidance can be valuable when teams need a common method for handling field samples, reviewing results, and aligning internal procedures around a clear technical document.

How is API RP 87 used in practice?

API RP 87 is commonly used where crude oil samples are taken and evaluated in field or operational settings, including production support, terminal work, or other upstream and midstream workflows where water content must be considered. It may be consulted by operations personnel, field supervisors, technical specialists, and QA/QC or engineering teams that support sample review and procedure consistency. Because the document focuses on field analysis, it can help align routine workflows, support local technical decisions, and improve consistency in how crude oil samples are assessed before further handling or reporting.

Why teams use API RP 87

Teams use API RP 87 when they need practical guidance that supports repeatable sample analysis and clearer communication across operations and technical functions. It can help reduce variation in field practices, support procurement or engineering review of internal procedures, and give maintenance, reliability, or integrity-related stakeholders a common technical reference when crude oil sample quality affects decisions. For organizations that rely on consistent operating methods and dependable analytical workflow, this API recommended practice can improve confidence in field-level evaluation and help keep technical expectations aligned.

• Field analysis of crude oil samples
• Water content range: two to fifty percent by volume
• Practical guidance for operational workflows
• Useful for operations and QA/QC review
• Supports technical consistency and procedure alignment
• API recommended practice from the 1st edition, 2007