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Mechanical pumping systems in oilfields heavily rely on tubing pumps, which are basically the core component of these systems.

A Comprehensive Guide to Selecting the Right API Tubing Pump for Your Oil Well: TH vs. TP and Custom Solutions

Confused between a Rod (Insert) Pump and a Tubing Pump? Discover the key differences in installation, production volume, and maintenance costs. Read our expert guide to choosing the most cost-effective API sucker rod pump for your well conditions.

Introduction: The High Stakes of Deep Well Recovery In the lifecycle of an oil field, transitioning into deep-well or ultra-deep-well production is a high-stakes endeavor. When dealing with well depths exceeding 2,500 meters (approx. 8,200 feet), the choice of artificial lift equipment is no longer just about fluid volume—it is a critical calculation of Total Cost of Ownership (TCO). Many international procurement managers are often swayed by the lower initial CAPEX of a Tubing Pump, only to realize later that they have fallen into a "maintenance money pit" caused by high-frequency workovers. At Dongsheng (DS Rod Pump), with over 20 years of experience serving global oilfield giants, we believe that 80% of production losses in deep wells are predetermined at the selection stage. This guide provides a deep dive into the technical and economic realities of API 11AX Rod Pumps versus Tubing Pumps.

The importance of the sucker rod pump: Although it accounts for a small proportion of the total cost and weight of a complete rod-operated pumping unit, it is a key component determining the technical and economic indicators of the unit. The operating condition of the sucker rod pump significantly affects the service life of the surface pumping unit and sucker rod. Factors such as plunger jamming, delayed opening and closing of pump valves, and excessive pump clearance volume can all cause overload and malfunction of the pumping unit and sucker rod, leading to well collapse. A schematic diagram of the structure and operation of a sucker rod pump is shown in the figure.

1.Overview of Tubing Pumps: Common Pump Types: Commonly used pumps in oil wells include tubing pumps, screw pumps, and ESPs. This article mainly introduces tubing pumps. Tubing PumpStructure: It mainly consists of a working barrel, bushing, fixed valve, piston, traveling valve, and clamping clamp. The working barrel contains a bushing, which is fixed at both ends with clamping clamps. Conventional tubing pumps are bushed pump barrels, metal plunger pumps, available in various diameters of 38, 44, 56, 70, 83, and 95 mm, with strokes of 3m and 5m.

During the operation of the oil sucker rod tubing pump, “air lock” is a common and easily overlooked failure. Once it occurs, it will cause the pump body's oil absorption and exhaust efficiency to plummet, and even cause equipment idling and wear. The so-called air lock refers to the phenomenon that after underground gas (such as natural gas and dissolved gas) enters the pump chamber of the oil sucker rod tubing pump, it occupies the effective space of the pump chamber due to the strong compression of the gas and the difficulty of discharging it, hindering the normal inhalation and lifting of crude oil. Timely and scientific removal of the air lock from the pump body associated with the pump rod is the key to ensuring the stable operation of the oil sucker rod tubing pump, which can be achieved in three steps: “Judgment-treatment-prevention”.​

In oil extraction, what we often call a piston pump is actually a rod pump that everyone is familiar with-it is the core equipment of underground oil production, relying on the “reciprocating movement of the piston” to extract underground crude oil. The principle is simple but the function is critical. The API 11AX Tubing Pump, which we focus on selling, as a benchmark product in petroleum rod pumps, has taken the advantages of this operating principle to the extreme, and cooperated with the tube pump to form a complete oil recovery system.

In oilfield oil production equipment, the stroke length of the rod pump is the key indicator that determines the efficiency of oil production, but it is often misunderstood by newcomers in the industry.

In the field of petroleum extraction, the rod pump oil recovery system has become the most widely used manual lifting method due to its high adaptability, simple structure and easy maintenance. As the core equipment of the system, API tubing pump occupies an important position.