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1. WO2022005627 - FLOW RATE CONTROL SYSTEM AND METHOD

Publication Number WO/2022/005627
Publication Date 06.01.2022
International Application No. PCT/US2021/032273
International Filing Date 13.05.2021
Chapter 2 Demand Filed 13.12.2021
IPC
E21B 34/06 2006.1
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
06in wells
CPC
E21B 10/322
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
10Drill bits
26Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
32with expansible cutting tools
322cutter shifted by fluid pressure
E21B 21/08
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
21Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
08Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
E21B 21/103
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
21Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
10Valve arrangements in drilling-fluid circulation systems
103Down-hole by-pass valve arrangements, i.e. between the inside of the drill string and the annulus
E21B 34/08
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
34Valve arrangements for boreholes or wells
06in wells
08responsive to flow or pressure of the fluid obtained
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 44/005
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
44Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems
005Below-ground automatic control systems
Applicants
  • WORKOVER SOLUTIONS, INC. [US]/[US]
Inventors
  • VON GYNZ-REKOWSKI, Gunther HH
  • KOENIG, Russell Wayne
  • RUDY, Kevin James
Agents
  • WADDELL, Robert L.
  • SUIRE, Blair B.
Priority Data
16/918,38301.07.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) FLOW RATE CONTROL SYSTEM AND METHOD
(FR) SYSTÈME ET PROCÉDÉ DE RÉGULATION DE DÉBIT
Abstract
(EN) A flow rate control system includes a housing and a valve assembly slidingly disposed within a housing inner bore. The housing includes bypass openings. The valve assembly includes a valve and an orifice disposed in a valve inner bore. The valve includes a plurality of valve bypass bores extending axially through a valve collar. The valve assembly slides between closed and fully open positions. A spring biases the valve assembly toward the closed position in which the valve closes the housing bypass openings. In the open position, a bypass fluid path is formed including the valve bypass bores and the housing bypass openings. The valve assembly is flow rate controlled in the closed position and pressure controlled in the open position. The valve assembly may slide within a sleeve assembly including sleeve bypass openings, which connect the valve bypass bores and housing bypass openings in the bypass fluid path.
(FR) Un système de régulation de débit comprend un boîtier et un ensemble soupape placé coulissant à l'intérieur d'un alésage interne de boîtier. Le boîtier comprend des ouvertures de dérivation. L'ensemble soupape comprend une soupape et un orifice placé dans un alésage interne de la soupape. La soupape comprend une pluralité d'alésages de dérivation de soupape s'étendant axialement à travers un collier de soupape. L'ensemble soupape coulisse entre des positions fermée et complètement ouverte. Un ressort sollicite l'ensemble soupape vers la position fermée dans laquelle la soupape ferme les ouvertures de dérivation du boîtier. Dans la position ouverte, un trajet de fluide de dérivation est formé comprenant les alésages de dérivation de soupape et les ouvertures de dérivation de boîtier. Le débit de l'ensemble soupape est régulé dans la position fermée et la pression est régulée dans la position ouverte. L'ensemble soupape peut coulisser à l'intérieur d'un ensemble manchon comprenant des ouvertures de dérivation de manchon, qui relient les alésages de dérivation de soupape et des ouvertures de dérivation de boîtier dans le trajet de fluide de dérivation.
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