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03:20 Dec 30, 2010
English to Russian translations [PRO] Tech/Engineering - Petroleum Eng/Sci / Wellhead Configuration
English term or phrase:spool-type wellhead
The preferred wellhead configuration is for a unitized wellhead but spool type wellheads can be proposed and the on line time required for nippling up wellhead spools will be taken into account.
устьевая арматура/оборудование (собранная) из головок/катушек
Explanation: можно написать катушечного типа
имхо, тут противопоставляют моноблочную и катушечную конструкцию
вот здесь это немного расписано http://www.c-a-m.com/Forms/Product.aspx?prodID=5a75937e-a05d...
Before the CSW was introduced, typical platform wellheads allowed for one well per slot. Each well could produce from multiple zones, but if one zone needed workover, the entire well was worked over. These systems used flanged connections and spool-type wellheads. Next, unitized wellheads incorporated casing and tubing stages within a common housing. This reduced the number of connections and was more economical.
а тут поподробнее http://www.freepatentsonline.com/5236037.html
In a wellhead system commonly used prior to the unitized type, each of a plurality of concentrically arranged well strings was suspended from an individual spool or head of a series of vertically arranged heads. More particularly, a hanger connectible to the upper end of each well string was landed on a seat in an individual spool, and each spool had a side outlet connecting with the annular space between the casing suspended from the spool and an outer well string, such that the flow of well fluid in the spaces could be controlled by a valve connected to the side outlet. Among other things, this required that a blowout preventer be installed above each head, as a well string was run therethrough, and then removed to permit another head to be installed.
In systems of this unitized type, however each of a plurality of concentrically arranged well strings is suspended in a single wellhead housing mounted at the upper end of the well.
Enote Local time: 23:55 Works in field Native speaker of: Russian PRO pts in category: 2547