Rod Pumps and Components

1 Rod Pumps and of contentsAbout NOV Rod Pump Pump Lift Systems Standard RH Standard RS Standard RW Standard RX Standard TH Assemblies - Assemblies - 3 API Pumps 13 Pump Components 3134 NOV MonofloSince 1841, National Oilwell Varco has been dedicated to ensuring customers receive the highest quality oilfield products and services. National Oilwell Varco is a worldwide leader in the design, manufacture and sale of equipment and Components used in oil and gas drilling and production operations, the provision of oilfield services, and supply chain integration services to the upstream oil and gas industry.

2 NOV also provides supply chain services through its network of more than 200 distribution service centers located near major drilling and production activity worldwide. We continue to build upon our unlimited, customer-focused solutions and are proud to deliver our Artificial Lift Systems through the NOV Monoflo NOV Monoflo division is a true partner and worldwide source for complete artificial lift equipment and packaged solutions. Our artificial lift professionals collaborate with you to determine customized artificial lift solutions that optimize your production. Professional Well Evaluation Surface and Subsurface Equipment Controllers and Production Automation All Production Accessories and Expendables Global Supply Chain and Service SolutionsNOV Monoflo provides several Artificial Lift Systems to fit the many different well conditions and needs seen in the Rod Pumping SystemsNOV Monoflo hydraulic rod pumping systems are high perfor-mance production systems that are ideal for many oil and gas applications.

3 These systems use patented technologies that will optimize your oilfield production, reduce production costs and allow you to maximize the profitability of each well. Our complete hydraulic rod pump system includes surface level hydraulic pumping mast which mounts directly to the wellhead, an EPA certified power skid (natural gas or electric), downhole sucker rods Pumps and Components , and a revolutionary con-troller with an easy-to-use touch screen display. Common Applications Oil and gas production Dewatering gas wells Highly deviated wells Coal bed methane (CBM) Remote locationsFeatures and Benefits Low Set up costs Minimal install time (requires 3 hours and 1 ton picker truck) Small footprint - minimal environmental impact Quick and easy adjustments to stroke speed and length Variable stroke speed for optimal pump filling Manufactured in ISO 9001 certified facilityabout nov Cavity Pump SystemsNOV Monoflo is a leader in the design, manufacture and supply of progress-ing cavity Pumps (PC Pumps ).

4 With over 75 years of experience, 8 international sites and a global distribution network, we provide a range of PC pump solu-tions that fullfill many oilfield production needs. Our line of downhole PC Pumps are designed for use in both oil production and dewatering applications where the economics of production demand efficiency, reliability and low life-cycle cost from the production Applications Heavy Crude Medium Crude Coal Bed Methane - CBM Shale Oil and Water High GOR WellsFeatures and Benefits Lower capital cost Lower Running cost Reliable Environmentally Acceptable ProfilePlunger Lift SystemsNOV Monoflo plunger lift technology is an effective and efficient technique of increasing and optimizing oil and gas wells which have marginal flow trends. The plunger lift system harnesses the ability of a mechanical plunger to act as a sealing interface between the formation gas and the produced well bore liquids.

5 Creating a turbulent seal between the gas and liquids and utilizing the well s own energy for lifting, liquids are pushed to the surface virtually eradicating liq-uid fall back. This increases inflow by reducing the average flowing bottom hole system is comprised of a well specific plunger, a bottom hole bumper spring, a specialized lubricator and catcher assembly, and our line of controllers for automation and arrival sensing. With Plunger Lift systems advanced controls and wide variety of optimization solutions, NOV Monoflo is able to offer a cost effective solution and environmentally friendly method of artificial Applications Dewatering liquid loading gas wells Wells that are currently being soaped Wells with high gas-to-oil ratio Paraffin and hydrate controlFeatures and Benefits High Efficiency Self-optimizing controllers Sweet and sour equipment options Built to API specifications Environmentally friendly6 Subsurface PumpsWhen the pressure in an oil reservoir is depleted to the point where the well will no longer flow, some artificial means of lift must be used to bring the oil to the surface.

6 The most generally accepted means of artificial lift is the Subsurface Sucker Rod Pump, actuated by a pumping unit and a sucker rod are two basic types of Subsurface Pumps , the Tubing Pump and the Insert Pump. The Tubing Pump Barrel is threaded directly onto the bottom of the production tubing, and is installed near the bottom of the well immersed in the oil within the well casing. The plunger is run into the tubing on the sucker rod string. Generally a standing valve puller is run between the bottom of the plunger as well as the separate standing valve. This makes the removal of the standing valve optional when pulling the sucker rods and plunger. The plunger, traveling valve, and standing valve can be serviced simply by pulling the rods, but it requires removal of the tubing to service the pump Insert Pump is run into the well on the rods as a complete unit. A seating assembly on the pump engages a seat-ing nipple on the tubing when the pump is run in, or installed.

7 After the well has pumped up, the additional pressure of oil in the tubing combined with the flow line pressure holds the pump firmly in place. The entire Rod Pump is removable, and therefore may be serviced merely by pulling the sucker rod Subsurface Pump designationsThe old API Standard 11A defined elements which were primarily threads and critical dimensions of various parts to insure interchangeability of these parts among all pump manufacturers. The new API Standard 11AX defines ele-ments, but in addition defines pitch lengths of parts so that the pull tube, pull rod and maximum stroke lengths of any designated API pump are now made it possible to designate a complete API pump assembly. The Letter Designations are the portion of the complete API part number most frequently used, and we will attempt to describe the use of these and the actual well conditions calling for the various types of Pumps indicated in the letter designations.

8 *Reference the API Pump Designation table on page first letter is either R or T, the R standing for Rod (commonly called insert) and the T for Tubing Pumps . Usually Insert Pumps are the first choice because they can be serviced simply by pulling the sucker rod string. Tubing Pumps require pulling the tubing in order to service the pump barrel. Since Tubing Pumps do have a larger bore and conse-quently greater capacity, they are used where a large volume of production is the first requirement. The second letter is either H, or W. The H stands for a heavy-wall barrel of one-piece construction. This barrel is exter-nally threaded, permitting a pump to be spaced so that the plunger may stroke out both ends of the barrel if desired. The heavy wall designation may be applied to either Insert or Tubing Pumps . With Insert Pumps , the API sizes are1 1/16 and 1 1/4 for 2 3/8 tubing, 1 1/2 and 1 3/4 for 2 7/8 tubing and 2 1/4 for 3 tubing.

9 In Tubing Pumps , API sizes are 1 3/4 for 2 3/8 tubing, 2 1/4 for 2 7/8 tubing and 2 3/4 for 3 1/2 tubing. The W stands for Thin Wall Barrel. The Thin Wall Barrel is 1/8 wall and is internally threaded. It is therefore, not pos-sible to stroke the plunger out either end as it is in the smaller bore, but externally threaded heavy wall or tubing pump barrel. The Thin Wall Barrel is not used in Tubing Pumps . API sizes are 1 1/2 bore for 2 3/8 tubing, 2 bore for 2 7/8 tubing, and 2 1/2 bore for 3 1/2 tubing. A 1 1/4 bore for 2 3/8 tubing is also frequently furnished. The third letter (which is omitted for tubing Pumps as the position of the holddown for these Pumps is not variable) designates the location of the seating assembly, which can be either A, B or T as illustrated below: A - Stationary barrel top anchor. This pump has the hold-down at the top of the barrel, so the entire barrel and standing valve of the pump extend below the pump seating nipple.

10 B - Stationary barrel, bottom anchor pump. This pump has the hold-down on the bottom. The standing valve and entire pump are above the hold-down inside the production tubing. T - Traveling barrel bottom anchor pump. This pump has the hold-down on the bottom of a section of hollow pull tube below the plunger. The standing valve is at the top of the plunger. The entire pump is above the holddown and remains inside the production rod pump of the three types has inherent advantages that require its use under certain pumping conditions. Each has at least one limitation that makes its use undesirable under other conditions. In many ways, any one of the three types may do equally well, but under difficult producing conditions selection of the proper type is of greater importance. In most cases, the experience of the operators in a given field will be the determining factor in selecting the proper type of pump for a well.