Sucker Rod Pumps 2001 CD

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Transcript of Sucker Rod Pumps 2001 CD

Introduction Components Applications & Considerations TroubleshootingARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Introduction

ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

General Well Design

ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Complete Conventional Sucker Rod Pump System

ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

API Classification

ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

API Method of Pump Assembly DescriptionROD PUMP TYPE ROD PUMP TYPE Letter Designations Letter Designations SOFT-PACKED PLUNGER SOFT-PACKED PLUNGER METAL PLUNGER PUMPS METAL PLUNGER PUMPS PUMPS PUMPS Heavy-Wall Thin-Wall Heavy-Wall Thin-Wall Heavy-Wall Thin-Wall Heavy-Wall Thin-Wall Barrel Barrel Barrel Barrel Barrel Barrel Barrel Barrel RHA RHA RHB RHB RHT RHT TH TH RWA RWA RWB RWB RWT RWT RXB RXB TP TP RSA RSA RSB RSB RST RST -

Stationary Barrel, Stationary Barrel, Top Anchor Top Anchor Stationary Barrel, Stationary Barrel, Bottom Anchor Bottom Anchor Traveling Barrel, Traveling Barrel, Bottom Anchor Bottom Anchor Tubing Pumps Tubing Pumps

ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Tubing Pumps vs. Insert PumpTubing Pump Barrel Assembly of this type pump is screwed onto, and becomes part of the tubing. Larger bore than a rod pump, thus it produces a greater volume of fluid in any give diameter of tubing Insert Pump The complete pump is attached to, and inserted into the well tubing with the sucker rod string. As a complete unit, this pump may be pulled out of the well without pulling the tubing.ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Basic Rod Pump ConfigurationsTHM Tubing-Type, Heavy Wall, Mechanical Holddown

RHBC Rod-Type, Heavy Wall, Bottom Holddown (Cup)

RWTC Rod-Type, Thin Wall, Traveling Barrel, Bottom Holddown (Cup)

RWAM Rod-Type, Thin Wall, Top Holddown (Mechanical)

ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Rod Pump Operation - ConceptVisualization of Rod Pump Working

(A) Pump grabs a bite of fluid on each downstroke of the pump, as the mouth of the traveling valve opens on the downstroke, and grabs a bite of whatever is within the compression chamber.(A) (B) (C) ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Rod Pump Operation - ConceptVisualization of Rod Pump Working (B) Upstroke closes the traveling valve, traps the fluids in the chamber and physically lifts them up the well a few feet. This bite is simply stacked below the previous bite until enough bites start running out at the surface of the well.(A) (B) (C) ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Rod Pump Operation - ConceptVisualization of Rod Pump Working (C) Standing Valve opens at the start of upstroke to admit fluids into the compression chamber from the reservoir, and closes on downstroke of pump to prevent these fluids from returning to the formation.(A) (B) (C) ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Types of Insert PumpsRod Pump - Top Anchor Rod Pump - Bottom Anchor Rod Pump - Travel Barrel Bottom Anchor

ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Top Hold-Down Pump

Rod Pump Barrel Application Top Anchor

Bottom Hold-Down Pump

ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Rod Pump Top AnchorValve RodPump Movement

Valve Rod Plunger Barrel Traveling Valve Ball Stop Standing Valve SeatARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Plunger

Barrel Traveling Valve Ball Stop Standing Valve Seat

Rod Pump Top AnchorAdvantages

Good for sandy wells Pump Barrel acts as Gas Anchor Excellent for low fluid wellsDisadvantages

Valve rod is weak leak of sucker rod Not recommend for deep wells Barrel Tube subject to sedimentation on part-time pumpingARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Top Hold-Down Pump

Rod Pump Barrel Application Bottom Anchor

Bottom Hold-Down Pump

ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Rod Pump Bottom AnchorValve RodPump Movement

Valve Rod Plunger Barrel Traveling Valve Ball Stop Standing Valve SeatARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Plunger

Barrel Traveling Valve Ball Stop Standing Valve Seat

Rod Pump Bottom AnchorAdvantages

Run in deep wells Good valve location Better design where long pumps necessaryDisadvantages

V-rod weak link in S-rod chain Barrel Tube subject to sedimentation Barrel Tube subject to corrosionARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Rod Pump Traveling Barrel Bottom Anchor

ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Rod Pump Traveling BarrelValve Rod Valve Rod

Plunger Barrel Traveling Valve

Pump Movement

Plunger

Barrel Traveling Valve Ball Stop Standing Valve SeatARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Ball Stop Standing Valve Seat

Rod Pump- Traveling Barrel Bottom AnchorAdvantages

Agitation keep sand from settling Good discharge distribution Both cages are open typeDisadvantages

Not recommend for gas wells Not recommend for pumps in deep wells Poor valve placementARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Types of Tubing Pumps Tubing Pump- Bottom Anchor Large Bore Tubing Pump

ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

TPC Pump

THM Pump THC Pump

API Pump Assemblies for Tubing Pump Bottom Anchor

ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Tubing PumpsValve Rod Valve Rod

Plunger Barrel Traveling Valve

Pump Movement

Plunger

Barrel Traveling Valve Ball Stop Standing Valve SeatARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Ball Stop Standing Valve Seat

Tubing PumpBottom AnchorAdvantages

Higher volume Simple Rugged for severe service Used to stroke in & out of barrelDisadvantages

Pulling cost factor Prone to gas locking Stuck SV leads to pulling wet stringARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

High Volume Fluid Pumps

ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

High Volume Fluid PumpsCasing Pump - attached to the Packer Advantages - Highest volume available; insert style, therefore retrievable Disadvantages - Wear by the rods on the casing; sanding in of the packer Bottled-Up Pump Advantages - Greater Production Volumes Disadvantages - Plunger larger than the tubing Oversized Tubing Pump ID threads on barrel allow larger plunger than normalARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Components

ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Rod Pump Holddowns

Mechanical Bottom Lock Holddown

Mechanical Top Lock Holddown

Cup-Type Holddown

ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Rod Pump Barrels & PlungersBarrels materials available Regular steel Hardened steel Regular steel w/ chromed I.D. Brass Brass w/chromed I.D. Stainless w/chromed I.D. Steel Nickel Carbide Brass Nickel CarbidePlungers available in all standard API sizes and types

ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Rod Pump Barrels

ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Thin Wall Rod Pump Barrels

Heavy Wall

SEAL

RW, RSCommon Working Barrel Tubing Pump Barrels

RHHeavy Wall

Difference Between Rod Pump and Tubing Pump Barrels

SEAL THREADED SEAL

TP

THARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Thin Wall Barrel & Heavy Wall Barrel

ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Metallurgy Nobility Chart Galvanic Series of Metals

ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Barrel Metallurgy Applications (Steel Barrel)Service Corrosion Abrasion

Moderate

ModerateX X

Barrel Metallurgy

Severe

Precision - 1026 Steel Precision - 443 Brass Nitrided - Alloy Steel Carburized - Carbon Steel

90 HRB - 23 HRC 85 HRB (Min) 58 - 63 HRC 58 - 63 HRC

X X X X

X X

ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Severe

Surface Hardness

Mild

Mild

Barrel Metallurgy Applications (Steel CID Barrel)ServiceCorrosion Abrasion

Moderate

Moderate

Metallurgy

Severe

Chrome Plated ID 1026 Steel Chrome Plated ID - 443 Brass Chrome Plated ID Nickel Copper Alloy Nickel Carbide Coated 1026 Steel Nickel Carbide Coated 443 Brass

69 - 72 HRC 69 - 72 HRC 69 - 73 HRC 72 - 75 HRC 72 - 75 HRC

X X X X X

ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

SevereX X X X X

Surface Hardness

Mild

Mild

Barrel PerformanceBarrel Comparison for 2.75"2.5 Value of Barrel 2

1.5 1

0.5 0 Steel Chrome Brass Chrome Steel Nickel Brass Nickel Plated ID Plated ID Carbide Coated Carbide CoatedARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Chrome Plated Barrel (Loosing Chrome)

ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Rod Pump Plungers

Plungers available in all standard API sizes and types

ARTIFICIAL LIFT SYSTEMS Weatherford. All rights reserved.

Weatherford Manufactured Plungers

Pin End Plunger

Box End Plunger

Grooved Plunger

Monel Pin Pressure End Actuated ARTIFICIAL LIFT SYSTEMS Plunger Plunger Weath