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Selective Injector Workover Difficulties

886 views. 2012-5-3 23:48 |Individual Classification:Operations Diary

1.      Wash sand, handle returns, no Desander, Sand Trap, most have to pump to production flowline;

2.      Control hole loss, take risk of blow out;

3.      Set barriers with Slickline, test barriers from below;

4.      High inclination, could not reverse circulation;

5.      Use different jars: Link Jars (Speed required), Spring Jars (Pre-set, can be fired more than once when P/U), Hydraulic Jars (in Thick oil)

6.      How to share slickline crew and equipment with other 5 rigs.

Note:

There are total of 12 orifice positions in OTSC Isolation Sleeve. (6 on top & bottom)

Orifice Diameter: 2~7 mm

RIH slickline with OTSC test gauge in Isolation Sleeve (Orifice opend). It can get the formation pressure to confirm seals between Isolation Packer, Water Allocator Mandrel & Isolation Sleeve.

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facelist doodle 涂鸦板

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