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1、copyright 2007, , all rights reserved well completion copyright 2007, , all rights reserved single completion with cemented and perforated casing perforated interval production casing surface casing packer reservoir tubing copyright 2007, , all rights reserved completion with cemented and perforated
2、 casing advantage: selective production zonal isolation water/gas shut-off disadvantage: extra cost (casing and cement, perforation) formation damage application: consolidated formation. multi reservoirs with different pressures. when dual completions are required copyright 2007, , all rights reserv
3、ed open hole completion reservoir production casing surface casing packer tubing copyright 2007, , all rights reserved open hole completion advantage: simple saving in cost and time disadvantage: no selective control difficult to isolate water or gas breakthrough cross flow can not be controlled not
4、 suitable for unstable formation application: low cost/multi well developments deep consolidated wells. naturally fractured reservoirs. copyright 2007, , all rights reserved open hole completion with slotted, perforated or screen liner reservoir packer liner hanger slotted,perforated or screen liner
5、 surface casing tubing production casing copyright 2007, , all rights reserved open hole completion with slotted, perforated or screen liner advantage: simple cheeper than cemented casing sand control disadvantage: no selective control difficult to isolate water or gas breakthrough cross flow can no
6、t be controlled not suitable for unstable formation application: sandy wells (stable formation) horizontal wells completion. copyright 2007, , all rights reserved open hole gravel pack completion reservoir packer liner hanger surface casing tubing production casing slotted,perforated or screen liner
7、 gravel pack copyright 2007, , all rights reserved open hole gravel pack completion with underreamed hole reservoir tubing production casing packer slotted, perforated or screen liner liner hanger gravel underreamed hole copyright 2007, , all rights reserved inside casing gravel pack completion rese
8、rvoir tubing production casing packer slotted, perforated or screen liner liner hanger gravel perforations copyright 2007, , all rights reserved frac and pack completion reservoir tubing production casing packer slotted, perforated or screen liner liner hanger gravel perforations hydraulic fracture
9、copyright 2007, , all rights reserved underreamed casing gravel pack completion reservoir tubing production casing packer slotted, perforated or screen liner gravel underreamed casing/hole copyright 2007, , all rights reserved selective completion zone 3 zone 2 zone 1 sliding sleeves copyright 2007,
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