bigedsenior Sep 1, 2018:

These are lateral branches emanating from a central well through which the extracted oil/gas flows.

lorenab23 Aug 30, 2018:

I think Phil is right Multilateral wells are new evolution of horizontal wells in which several wellbore branches radiate from the main borehole.
https://petrowiki.org/Multilateral_wells
ECLIPSE Advanced Wells (Multisegment Wells)
Improved handling of multilateral topology
The well trajectory is discretized into a series of segments that are linked together into branches. Branches can, if required, have sub-branches.
https://www.software.slb.com/products/eclipse/modelling/adva...

Ryan Kelly (asker) Aug 30, 2018:

Sorry, I though I pasted more into this, but it seems I did not. This is from a Mexican regulatory framework for identifying oil wells. Unfortunately the example I used is truncated from the entire text, but here are more examples of the term within the text. Thanks for your help!

Cada Ramificación de un Pozo Multilateral y cada Ramificación originada por un accidente mecánico o por la búsqueda de un nuevo objetivo, entre otros propósitos, o Profundización deberán tener su propia Clasificación.
El objetivo Inicial de la Perforación del Pozo, de la Ramificación, de la profundización o de las Ramificaciones de Pozos Multilaterales, deberá ser propuesto por los Operadores Petroleros al momento en que soliciten la primera inscripción de Clasificación para el Registro Administrativo de Pozos.

philgoddard Aug 30, 2018:

Branches, I'd have thought. Though you've given hardly any context, and the sentence doesn't make grammatical sense.