Taylor Valve Technology, Inc

Transcription

1 MULTI-ORIFICE VALVE MD SERIES PRODUCTION CHOKES Gas Lift Water Injection Enhanced Oil Recovery Throttling Valve High DP Valve Motor Operated Valve Manual and Automated Applications JUL0-TVT-OKC

2 SERIES MD MOV Choke Principle of Operation Technology Multi Orifice Valve design principle provides precision control. The two adjacent internal discs each contain two precision orifices. Full Open Throttling Closed When the holes on both discs are aligned the valve is Full Open Position. When the front disc is rotated, changing the alignment and relationship to the fixed back disc, the flow area and orifice size are affected, the result either increase or decrease in flow. When the front disc o is rotated a full 0 (one quarter turn), the valve is in the full closed position. The discs are lapped to within two light bands of flatness (+/ ) to achieve positive shut off and maintain precise control. The fixed back disc is held perpendicular to the flow. The front disc floats against the back disc and seeks a mating surface promoting a positive seal. The differential pressure across the upstream disc and stabilizes the control surfaces. Vibration, noise or fatigues normally associated with loose or unsupported parts is eliminated.no control surfaces are introduced into the orifice, providing a clear center line for flow. The valves are rated for shut-off at ANSI Class III or IV depending on the style of valve and trim used. The orifices of the standard disc expose a small control surface profile to the fluid stream reducing wear. The multi-orifice design produces near linear flow characteristics. The low torque and quarter-turn design of Technology s Multi-orifice Valves allows for a variety of actuation options; manual, pneumatic, hydraulic, or electric. page

3 SERIES MD MOV Choke FEATURES Accurate control - 0 Degree rotation from Full Off to Full On Bolted Bonnet - Safety Bonnet is bolted into the body, it avoids the well-known risks of corrosion, cross threading, galling of threaded type connection in production environments. Safety Body Pressure Bleed Valve - The potential for buildup or trapped pressure is eliminated by the installation of a high pressure stainless steel bleed valve installed in accordance with the requirements of APIA. Extended Mean time between Service - Robust design and liberal application of hardened materials, efficien flow-geometry means the valves offer maximum production potential and minimum service requirements. Easy maintenance - Choke Valves are designed with special actuator mounting systems so the choke can be maintained. Optional features - Choke Valves can have trims and actuators custom designed for specific requirements, such as, special trims for noise reduction and sand control, reduced port and maximum orifice trims are available for very high pressure or minimum pressure loss for a declining field APPLICATIONS Well Site Automation Water Injection Control Valve CO Injection Control Valve Pump Bypass Pump Startup Applicatiob Picture Gas Lift Injection Control Blow Down and Dump Valve Remote Control for directional drilling page

4 SERIES MDI Multi-Orifice Choke MDI Valve Design Features Available Sizes Inch Inch Inch Optional Actuator MDI Positive Bean Choke Fully Guided Stem reduces imblance and vibration Mounting Bracket and adapter Redundant Bonnet Seals Protective cage Cross section of wear resistant material to extend service life Redundant Stem Seals with Backup rings Control Discs provide ASME Class III/IV Shut off Precision Orifices Manual MDI page

5 MODEL MDI MOV Choke Parts Diagram Key Description Qty EXPLODED VIEW Handle Lock Nut Turning Hub Calibration Label Bonnet Thrust Bearing Retainer Spring Backup Ring Turning Fork Dowel Pin Control Disc Dowel Pin Cage Wear Sleeve Body Bonnet Bolts Data Plate Drive Screw page

6 MODEL MDI MOV Choke Specifications Trim Size and Maximum CV Diameter of One Orifice in Inches Orifices Size Cv Dimensions and Weights Inlet and Outlet FACE TO FACE DIMENSION Weight Connections In mm Lbs Kg Female NPT Female NPT Sch 0 Bevel Weld ANSI CLASS 00 RF. 0 ANSI CLASS 00 RTJ. 0 ANSI CLASS 00 RF. 7.7 ANSI CLASS 00 RTJ. 7.7 ANSI CLASS 00 RF. 7.7 ANSI CLASS 00 RTJ API 000 RTJ. 0.0 API 000 RTJ. 7.7 page

7 MODEL MDA MOV Choke Parts Diagram EXPLODED VIEW Key Description Qty Key Description Qty 7 0 Handle Lock Nut Turning Hub Calibration Label Bonnet Thrust Bearing Retainer Spring Backup Ring Turning Fork Dowel Pin 7 0 Control Disc Dowel Pin Cage Wear Sleeve Body Bonnet Bolts Data Plate Drive Screw page page 7

8 MODEL MDA MOV Production Choke MDI Valve Design Features Available Sizes Inch Inch Inch Redundant Stem Seals with Backup rings Fully Guided Stem reduces imblance and vibration MDA Positive Bean Choke Redundant Bonnet Seals Control Discs provide ASME Class III/IV Shut off Protective cage Cross section of wear resistant material to extend service life Automated MDI

9 MD Series MOV Choke Part Numbering System MD Valve Type I Inline Body IS Inline Steam Body A Angle Body AS Angle Steam Body NOMINAL BORE Inch Inch Inch SERVICE 00 STANDARD 0 NACE 0 STEAM HIGH TEMP 0 WET CO- 0 LOW TEMP/SOUR 0 FULL SS 0 SALT WATER TYPE ACTUATOR 0 MANUAL HANDLE MANUAL GEAR ELECTRIC PNEUMATIC HYDRAULIC CS ACTUATOR BRACKET SS ACTUATOR BRACKET 7 POSITIVE BEAN END CONNECTIONS 0 FNPT 0 FNPT 0 BUTT WELD SCH0 0 BUTT WELD SCH0 07 ANSI 00# RFF 0 ANSI 00# RTJ ANSI 00# RFF ANSI 00# RTJ ANSI 00# RFF 7 ANSI 00# RTJ BUTT WELD XXH NATIONAL GROOVE ANSI 00# RFF 7 ANSI 00# RTJ VICTAULIC ES ANSI 00# RTJ ANSI 00# RTJ NATIONAL GROOVE ANSI 00# RTJ FNPT 7 ANSI 00# RFF ANSI 00# RFF ½ SOCKET WELD NOMINAL BORE SERVICE ACTUATOR END CONNECTIONS ANSI 00# RTJ ANSI 00# RTJ 7 ANSI 00# RTJ ANSI 00# RFF ANSI 00# RFF ANSI 00# RFF ANSI 00# RFF SOCKET WELD ANSI 00# RFF 7 VICTAULIC ES ANSI 00# RTJ BUTT WELD SCH0 70 SOCKET WELD 7 ANSI 00# RTJ ANSI 00# RFF 0 SOCKET WELD BUTT WELD SCH0 BUTT WELD SCH0 VICTAULIC ES NOTE: For many other, and connections consult factory DISC SIZE DISC/WEAR SLEEVE MATERIAL BODY MATERIAL SEAL SEAL MATERIAL 00 SPECIAL 0 BUNA N / NBR 0 POLYURTHANE 0 EPT/ EPOM 0 FLUOROCARBON 0 METAL/FIBER 0 NEOPREME / CR 07 PEROXIDE CURED NBR 0 STEAM SEALS 0 PTFE BODY MATERIAL 0 CARBON STEEL 0 COATED STEEL 0 0 STAINLESS STEEL 0 DUPLEX STAINLESS DISC/SLEEVE 00 CERAMIC / 7- H00 SS 0 CARBIDE / 7- H00 SS 0 CARBIDE / STELLITE 0 CERAMIC / STELLITE 0 CARBIDE / CARBIDE CERAMIC / NO SLEEVE CARBIDE / NO SLEEVE 7 POS BEAN / 7- H00 SS DISC SIZE 0 () / RND PORTS 0 () / RND PORTS 0 () / RND PORTS 0 () / RND PORTS 0 () / RND PORTS 0 () / PIE PORTS 07 () / RND PORTS 0 () 7/ RND PORTS 0 ().0 PIE PORTS 0 () - / RND PORTS () - / RND PORTS NOTE: For positive bean sizes consult factory page

10 ESTIMATOR FOR FLOW RATE NOMOGRAPH FOR WATER BEAN SIZE IN THS 00 PRESSURE DROP (DP) ACROSS CHOKE (PSI) DOUBLE ORIFICE CHOKE WATER FLOW IN BBL/DAY EXAMPLE PRESSURE DROP DP 00 PSI, WATER FLOW RATE 000 B/D FOR SINGLE ORIFICE CHOKE OR 0 B/D DOUBLE ORIFICE CHOKE READ BEAN SIZE 0 NOTE: P-P = DP WHEN P = UPSTREAM PRESSURE P = DOWNSTREAM PRESSURE DP = PRESSURE DROP ACROSS THE CHOKE SINGLE ORIFICE CHOKE page 0

11 ESTIMATOR FOR FLOW RATE NOMOGRAPH FOR GAS EXAMPLE UPSTREAM PRESSURE OF 70 PSI, BEAN SIZE 0, AND GAS FLOW RATE OF 00 MCF PER DAY NOTE: UPSTREAM PRESSURE MUST BE TWO TIMES DOWNSTREAM PRESSURE (KNOWN AS CRITICAL FLOW) UPSTREAM PRESSURE (PSI) NATURAL GAS IN MSCFD BEAN SIZE IN THS page

12 Sizing Information Flow Equations Liquid Solve for C V Gas Volume C = V Mass C = V Q / (0 * P * Y) Q / (. * P * Y) G * T G X T X * M C = Q V Q = C V Where: S G ÄP Solve for Flow (Q) ÄP S G P = Inlet Pressure (psia) P = Outlet Pressure (psia) ÄP = P -P Q = Flow Rate (BPD) S G = Specific Gravity - Water =.00 C = Valve coefficient of Flow V Sizing Data for Liquids P - Inlet Pressure (psia, psig, Bara, kpaa) P - Outlet Pressure ( psia, psig, Bara, kpaa) Q L - Flow (bbl/d, gal/min, lbs/hr, kg/hr, m/d ) SG - Specific Gravity of Liquid o o o o T - Temperature ( F, C, R, K ) Phase Flow Solve for Pressure Drop (ÄP) ÄP = Q S G C V P - Inlet Pressure (psia, psig, Bara, kpaa) P - Outlet Pressure ( psia, psig, Bara, kpaa) Q G - Flow (scf/d, m /hr, kg/hr ) Q L - Flow (bbl/d, gal/min, lbs/hr, kg/hr, m/d ) G G - Specific Gravity of Gas S G - Specific Gravity of Liquid o o o o T - Temperature ( F, C, R, K ) Any Vapor C = V Where: W / (. * Y) V ÄP F k = Ratio of Specific Heats (K/.0) K = Specific Heat Ratio for Air (.0) M = Molecular weight o o T = Temperature R = ( F + 0) P = Inlet Pressure (psia) P = Outlet Pressure (psia) ÄP = P -P Q = Flow Rate (SCFH) G G = Specific Gravity - Air =.00 C = Valve coefficient of Flow V V = Specific volume cu. ft. per lb W = Flow rate lb/hr X = Actual pressure drop ratio ÄP / P Xt = Maximum pressure drop ratio (ÄP / P ) max Y = Expansion factor, - ( x / (F k * X t) Sizing Data For Gas Service P - Inlet Pressure (psia, psig, Bara, kpaa) P - Outlet Pressure ( psia, psig, Bara, kpaa) Q G - Flow ( scf/d, m /hr, kg/hr ) G G - Specific Gravity o o o o T - Temperature ( F, C, R, K ) Co ( Gaseous ) P - Inlet Pressure (psia, psig, Bara, kpaa) P - Outlet Pressure ( psia, psig, Bara, kpaa) Q G - Flow ( scf/d, m /hr, kg/hr ) P V - Vapor Pressure (Function of Temperature) V - Specific Volume (Function of Temperature and P Pressure) SG G - Specific Gravity of Gas o o o o T - Temperature ( F, C, R, K ) page