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1. WO2013009773 - MULTI-ZONE SCREENED FRAC SYSTEM

Publication Number WO/2013/009773
Publication Date 17.01.2013
International Application No. PCT/US2012/046106
International Filing Date 10.07.2012
IPC
E21B 34/00 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
34Valve arrangements for boreholes or wells
CPC
E21B 2200/06
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
2200Special features related to earth drilling for obtaining oil, gas or water
06Sleeve valves
E21B 34/14
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
34Valve arrangements for boreholes or wells
06in wells
14operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
E21B 43/08
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
43Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
02Subsoil filtering
08Screens or liners
E21B 43/14
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
43Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
14Obtaining from a multiple-zone well
E21B 43/26
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
43Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
25Methods for stimulating production
26by forming crevices or fractures
E21B 43/267
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
43Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
25Methods for stimulating production
26by forming crevices or fractures
267reinforcing fractures by propping
Applicants
  • WEATHERFORD/LAMB, INC. [US]/[US] (AllExceptUS)
  • VAN PETEGEM, Ronald [NL]/[US] (UsOnly)
Inventors
  • VAN PETEGEM, Ronald
Agents
  • McDERMOTT, Sean, P.
Priority Data
61/506,89712.07.2011US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MULTI-ZONE SCREENED FRAC SYSTEM
(FR) SYSTÈME DE FRACTURATION CRIBLÉ À ZONES MULTIPLES
Abstract
(EN)
A multi-zone screened frac system combines screens with integrated check valves, frac valves, and optional shunt tubes for slurry dehydration. The system can also include fiber optic technology. In particular, the system uses sliding sleeves and flow devices for each section. The sliding sleeves open with dropped balls or a service tool, and the flow devices have screens and act as check valves. Dehydration tubes can also be used. The system does not require a crossover tool, and in some implementations, the system does not even require a complete service tool.
(FR)
L'invention porte sur un système de fracturation criblé, à zones multiples, qui combine des cribles avec des clapets de non-retour intégrés, des clapets de fracturation et des tubes de dérivation facultatifs pour une déshydratation des boues. Le système peut également comprendre une technologie à fibre optique. En particulier, le système utilise des manchons de coulissement et des dispositifs d'écoulement pour chaque section. Les manchons de coulissement s'ouvrent à l'aide des balles tombantes ou d'un outil de service, et les dispositifs d'écoulement ont des cribles et agissent en tant que clapets de non-retour. Des tubes de déshydratation peuvent également être utilisés. Le système ne nécessite pas d'outil de raccordement et, dans certains modes de réalisation, le système ne nécessite même pas d'outil de service complet.
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