Event Sequence Code
The thirteenth and fourteenth digits (00 in the example above) are to distinguish between separate operations in a single bore hole. In 1995, the API Subcommittee on Well Data Retrieval Systems proposed adding the event sequence code to deal with re-entries, recompletions, and hole deepenings. However, because of industry conditions (low oil prices), the subcommittee was disbanded before the recommendations were published and adopted by API
IHS Energy, the successor to Petroleum Information, adopted these unpublished recommendations in January 1999. Data in the WHCS well completion and the Active well database have this event sequence code. However, this event sequence code is assigned by IHS Energy, and is not found in most oil and gas databases.
Read more about this topic: API Well Number
Famous quotes containing the words event, sequence and/or code:
“An event has happened, upon which it is difficult to speak, and impossible to be silent.”
—Edmund Burke (1729–1797)
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—E.M. (Edward Morgan)
“...I had grown up in a world that was dominated by immature age. Not by vigorous immaturity, but by immaturity that was old and tired and prudent, that loved ritual and rubric, and was utterly wanting in curiosity about the new and the strange. Its era has passed away, and the world it made has crumbled around us. Its finest creation, a code of manners, has been ridiculed and discarded.”
—Ellen Glasgow (1873–1945)