Progressing Cavity Pump

PC-PUMP v3.7.3 has the following additions over PC-PUMP v3.7.2:

  • Minor Bug Fixes: some minor PC-PUMP software bugs have been fixed in v3.7.3. These fixes improve the integrity and usability of PC-PUMP by removing bugs that could potentially cause unexpected behaviour in the software.
  • Windows 10 Improvements: we have been working to improve the appearance of PC-PUMP in Windows 10 over the last few versions.  In v3.7.3, all of the main input and output windows have now been updated to the new...

The Industry Challenge

Accumulation of solids in Coal Seam Gas (CSG, which is also sometimes referred to a Coal Bed Methane or CBM) operations can pose serious problems for operators.  Various technologies are being sold or proposed to solve these problems but very few have been properly tested in a controlled environment under representative CSG conditions.  Some of the most common solutions include injecting water downhole, using an automatic diverter valve (ADV), varying the pump geometry, or...

Course Overview:

This course can be customized and tailored to the needs of the client. Course offerings can contain any or all of the following:

  • PC-PUMP software training
  • Introduction to PCP systems
  • PCP system theory
  • Design and optimization of downhole PCP systems
  • Failure analysis of PCP systems
  • Advanced topics (which includes application considerations such as gas, solids, high viscosity fluids, and high temperatures), monitoring, and troubleshooting

Duration: 1 - 5 Days, depending on level...

Abstract

A Group of manufacturers of surface drives for progressing cavity pumping (PCP) systems has supported the development of an industry standard for such equipment. The purpose of the standard is to provide guidelines for designing, specifying and using surface drives and to ensure acceptable levels of safety in the operation of this equipment. This paper describes the safety issues associated with this equipment that are addressed by the standard.

Introduction

Progressing cavity (PC)...

Abstract

Accurate estimation of pump axial load in Progressing Cavity Pump (PCP) applications is an important aspect of the installation design. It affects the calculation of rod stresses, and therefore the determination of the rod string torque capacity. In deviated wells, it also directly affects the calculated rod-tubing contact loads, and therefore the evaluation of wear related issues. This paper discusses the current theory related to the calculation of axial load in PCP applications, in...

Abstract

ConocoPhillips has been on a quest to find a high volume artificial lift system that will operate reliably in a 250°C (482oF) downhole environment, which exists in certain SAGD applications. This presented two problems: 1) there were no commercially available technologies for such a high temperature; and 2) there were no facilities capable of testing these systems.

This paper describes the complexity of building and operating a high temperature flow loop rated for 250°C, and the...

Abstract

This paper presents the results of a field trial conducted in Saskatchewan, Canada to investigate drive string dynamics between conventional and continuous rod and the impact of interference fit between rotor and stator in progressing cavity pumps (PCP).

In August 2009, a well was completed with a downhole monitoring system and a PCP driven by a continuous rod string.  At the same time, a second well was completed with a downhole monitoring system and a PCP driven by a conventional rod...

Abstract

When performing statistical analyses on PCP run-life data, one can easily reach incorrect conclusions if subtle but important issues are not fully understood.  This paper illustrates some of these issues using examples from analysis work conducted recently with a relatively large and complete set of data collected from several large operators.  Issues examined include misinterpretation of single-variable correlation results and run-life measures.  It is impractical to design and...

Abstract

Metal-to-metal Progressing Cavity Pump (M PCP) technology has become an effective lifting method for challenging thermal conditions, such as for Steam Assisted Gravity Drainage (SAGD) production.  This paper summarizes some of the technical challenges and key learnings following a unique high temperature test on an
M PCP system developed by National Oilwell Varco (NOV), which was conducted in a high temperature flow loop at C-FER Technologies.  This M PCP pumping system was evaluated...

Abstract

Four major operators with significant coal seam gas (CSG) holdings in Queensland, Australia identified Progressing Cavity Pumps (PCPs) as one of the preferred artificial lift technologies to deliquify coal seams and allow the adsorbed coal seam gas to be produced to surface.  Each operator also acknowledged the need to accelerate their understanding of PCP technology in order to effectively overcome the unique challenges of this application.  To address this need, since early 2012,...