Gatewayâ„¢ Wireline-Retrievable Nonreturn Valve (WR-NRV) -A4
Gatewayâ„¢ Wireline-Retrievable Nonreturn Valve (WR-NRV) -A4
Gatewayâ„¢ Wireline-Retrievable Nonreturn Valve (WR-NRV) -A4
- No tags were found...
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Secure Drilling SM ServicesGateway <strong>Wireline</strong>-<strong>Retrievable</strong><strong>Nonreturn</strong> <strong>Valve</strong> (<strong>WR</strong>-<strong>NRV</strong>)Weatherford’s Gateway <strong>WR</strong>-<strong>NRV</strong> for Secure Drilling procedures enhances safetyand provides unique recovery options for greater efficiency and reduced risk.Placed in the drillstring, this flapper-style, drill-float valve prevents pressure fromentering the string above it. The high-pressure valve enhances safety by allowingpressure above the valve in the drillstring to be bled off when making and breakingconnections. Efficiency is improved and risk is reduced because, unlike a fixedfloatvalve, the <strong>WR</strong>-<strong>NRV</strong> can be changed out or removed on wireline, eliminatingthe need to trip the pipe.Multiple valves are typically positioned at intervals of about 500 ft (150 m) inthe string to enable incremental bleed back of any existing pressure and laterincremental repressurization. This procedure eliminates the time associatedwith bleeding pressure off the entire drillstring, as required with fixed valvespositioned in or near the bottomhole assembly (BHA).In contrast to fixed-float valves that are made up as part of the drillstring, theGateway <strong>WR</strong>-<strong>NRV</strong> makes up to an industry standard X-lock assembly that islatched into a drillstring profile sub. Using this common industry connectionfacilitates quick recovery by wireline, which enables valve replacement withoutkilling the well. It also makes it possible for fishing operations to reach the BHA,which is prevented with fixed-valve configurations.Applications• Underbalanced drilling (UBD) operations• Managed pressure drilling (MPD) operations• Air drilling (AD) operationsweatherford.com 1 © 2009–2010 Weatherford. All rights reserved. 5823.01
Secure Drilling SM ServicesGateway <strong>Wireline</strong>-<strong>Retrievable</strong><strong>Nonreturn</strong> <strong>Valve</strong> (<strong>WR</strong>-<strong>NRV</strong>)Features, Advantages and Benefits• Easy access on wireline means the Gateway <strong>WR</strong>-<strong>NRV</strong> can be changed orremoved without tripping the drillstring or killing the well. Eliminating the tripsrequired to retrieve a fixed valve saves valuable rig time.• Designed for high-pressure applications, the valve ensures pressure-controlintegrity, even with extremely high-pressured hydrocarbons.• A large bore ID minimizes friction when pumping gas and fluid into the drillstringfor maximum drilling performance. The valve only restricts flow when fluids orgas travel up the drillstring.• The large bore design does not preclude the pumping of balls or darts, whichprovides options not available with fixed-float valves.SpecificationsGateway <strong>WR</strong>-NVR Dimensional SchematicSize(in./mm)AOverallLength(in./mm)BMaximumOD(in./mm)CMinimumID(in./mm)RunningTool(in./mm)PullingTool(in./mm)PressureRating(psi/MPa)2.3158.6717.69449.332.2857.911.3835.052.50 WX63.5 WX2.50 GS63.5 GS10,00068.92.8171.3718.14460.762.7269.091.7544.453.00 WX76.2 WX3.00 GS76.2 GS10,00068.9ACBweatherford.com 2 © 2009-2010 Weatherford. All rights reserved. 5823.01
Secure Drilling SM ServicesGateway <strong>Wireline</strong>-<strong>Retrievable</strong><strong>Nonreturn</strong> <strong>Valve</strong> (<strong>WR</strong>-<strong>NRV</strong>)Specifications (continued)Landing Subs 1 for 2.31-in. <strong>WR</strong>-<strong>NRV</strong>Landing Subs 1 for 2.81-in. <strong>WR</strong>-<strong>NRV</strong>ItemNumberDescription(in.)OD(in./mm)ItemNumberDescription(in.)OD(in/mm)1 3.50 IF (NC38) <strong>NRV</strong> Sub4.750120.651 4.00 IF (NC46) <strong>NRV</strong> Sub6.250158.752 4.00 IF (NC46) <strong>NRV</strong> Sub6.250158.752 4.00 FH (NC40) <strong>NRV</strong> Sub5.250133.353 4.00 FH (NC40) <strong>NRV</strong> Sub5.250133.353 4.50 IF (NC50) <strong>NRV</strong> Sub6.625168.284 4.00 XT39 <strong>NRV</strong> Sub5.000127.004 5.00 H90 <strong>NRV</strong> Sub6.500165.105 4.00 VJ40 <strong>NRV</strong> Sub4.875123.835 5.00 XT39 <strong>NRV</strong> Sub6.125155.586 4.00 VAM VX39 <strong>NRV</strong> Sub5.000127.006 5.00 NC50 <strong>NRV</strong> Sub6.750171.457 4.50 IF (NC 50) <strong>NRV</strong> Sub6.625168.287 5.875 XT57 Connections <strong>NRV</strong> Sub7.000177.808 5.00 H90 <strong>NRV</strong> Sub6.500165.108 6.625 Reg <strong>NRV</strong> Sub8.500215.909 5.00 XT39 <strong>NRV</strong> Sub6.125155.581Additional sizes and connections are available upon request.10 5.50 HT55 <strong>NRV</strong> Sub7.000177.8011 5.875 XT57 <strong>NRV</strong> Sub7.000177.801Additional sizes and connections are available upon request.Drillpipe Landing Sub Dimensional Schematicweatherford.com 3 © 2009-2010 Weatherford. All rights reserved. 5823.01Weatherford products and services are subject to the Company’s standard terms and conditions, available on request or at weatherford.com. For more information contact an authorized Weatherford representative.Unless noted otherwise, trademarks and service marks herein are the property of Weatherford. Specifications are subject to change without notice. Weatherford sells its products and services in accordance with theterms and conditions set forth in the applicable contract between Weatherford and the client.
Change language