This pump, which was made in line with API Spec 11AX, is equipped with a multi-stage elastic sealing system that effectively limits the leakage and lessens the abrasive wear in wells with a lot of sand and high-angle ones. Besides horizontal and deviated wells, it is also suitable for sandy wells.
| Feature | Description | Benefit |
| Elastic Seal Design | Multi-stage, non-contact elastic gap sealing | Minimizes leakage under sand-laden conditions |
| Spiral Guide Groove | 45° spiral channels | Promotes effective sand discharge, reducing abrasion |
| Carbide Guide Sleeve (HRA92) | Wear-resistant material | Extends barrel and plunger life |
| API 11AX Certification | Manufactured according to API 11AX standards | Ensures compatibility and reliability in heavy-oil and high-angle wells |
| Pump bore (mm) | Length of plunger (m) | Length of barrel (m) | Range of stroke (m) | Pump constant of mechanical top seal rod pump | Size of connecting sucker rod | Size of connecting tubing (in ) | Max outside diameter (mm ) |
| 32 | 1.5 | 4.5~8.7 | 3.0~8.0 | 1. 14 | CYG19 | 2 3/8TBG or 27/8TBG | 73/89 |
| 38 | 1.64 | CYG19 | 2 3/8TBG or 27/8TBG | ||||
| 44 | 2. 23 | CYG19 | 2 7/8TBG or 3 1/2TBG | 89/108 | |||
| 57 | 3.69 | CYG19 | 2 7/8TBG or 3 1/2TBG | ||||
| 70 | 5. 52 | CYG22 | 3 1/2TBG or 4TBG | 108/121 | |||
| 83 | 7.70 | CYG22 | 3 1/2TBG or 4TBG | ||||
| 95 | 10.26 | CYG25 | 4TBG or 4 1/2TBG | 121/132 |
Barrel straightness ≤ 0.02 mm.
Plunger surface roughness (Ra) ≤ 0.1 μm, barrel surface roughness (Ra) ≤ 0.2 μm.
Heat treatment traceability is offered.
API 11AX certified to meet
The main framework of an elastic seal sucker rod pump for horizontal wells consists of;
Upper coupling: a critical piece that connects the rod and pump body to enable the transfer of power.
Barrel: the primary load-bearing part that holds up the pressure from the liquid column.
Elastic plunger (3 groups): these are physically designed as the elastic structure and each group of plunger is capable of deforming adaptively.
Core bar: it is the main structural element that supports the plunger assembly and allows the plunger parts to move coaxially.
Travelling auxiliary valve (3 groups): when used with the elastic plunger, they regulate the flow direction of the liquids inside the sections.
Horizontal well bottom valve: located at the bottom of the pump, it has a self-locking function to stop the reversal of liquid flow.
Horizontal wells with a large proportion of sand in the production stream.
Deviated wells that are more likely to suffer from gas lock.
Wells that have H₂S or CO₂ gases present.
Operations producing heavy or viscous oils.
Case in point: A South American horizontal well with 12–15% sand content witnessed lower plunger wear and less unplanned workovers when it upgraded to the elastic seal pump.
API Spec 11AX Certification: We got the official license to carry the API 11AX monogram. Our design, materials, manufacturing and quality inspection processes completely conform to the most stringent industry standards in the world.
ISO 9001 Quality Certification: We keep the quality of each and every pump down to the level of individual bolts thanks to our ISO 9001 management system work.
In China, we are recognized suppliers by CNPC and several major oilfields, offering advanced artificial lift solutions over a long period.
Liaohe Oilfield: Delivering specially made, highly efficient pumps that perfectly match their heavy oil and viscous oil production methods.
Daqing Oilfield: Supplying large quantities of very high-quality, API-certified sucker rod pumps and related parts to support their production stabilization endeavors.
Changqing Oilfield: Enabling the effective exploitation of their low-permeability oil and gas reservoirs.
Shengli Oilfield: Offering very dependable equipment that can manage challenging geological structures and wells with high water production.
Certificates
Partners
Q1: What is the maximum displacement of horizontal well elastic seal sucker pump?
A: When the pump diameter is 95mm + 8m stroke, the theoretical displacement can reach 246m³/d (need to be matched with CYG25 sucker rod).
Q2: How to solve the viscosity problem of heavy oil?
A:Horizontal well elastic seal sucker pump can be equipped with electric heating plunger (220V/3kW) to melt the viscosity of crude oil from 5000mPa·s to 800mPa·s.
Q3: What certifications do your pumps have?
A3: We produce all our subsurface pumps strictly according to API 11AX standards. Besides, our factory has been ISO 9001 certified. The replacement cycle is usually about 3 years.
Tieling Dongsheng Petroleum Machinery Co., Ltd. was set up in 2000. It is a high-quality petroleum machinery manufacturer integrating design, manufacturing, and trading. The company is mainly engaged in the research, development, and manufacture of a variety of special oilfield equipment like rod pumps, tubing pumps, plungers, pump barrels, hard lining cages, etc. The products are widely used not only in the domestic market of China but also in overseas markets such as North America and the Middle East.
Cutting Edge Precision Manufacturing System: A state-of-the-art manufacturing plant of more than 20,000 square meters is at our disposal. It houses a wide array of advanced machinery, including high accuracy vertical honing machines, giant CNC lathes, and fully automated heat treatment lines.
Standardized Honing Process: This is the essence of our technological superiority. With the use of high-precision honing and alignment techniques, our pump barrels and plungers are produced with such a high level of geometric accuracy that they far surpass industry standards. In fact, this elevates pump's volumetric efficiency by a great margin.
100% Customization Support: Thanks to our extensive R&D know-how, which has been gathered through work on over 100 different pump model and parts, we provide highly detailed customization services which are most suitable to the client's unique conditions of the well.
Contact our technical engineers for well-specific recommendations
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