Our company's long-plunger sand-control pump is specifically designed for oil wells with high sand content and high mineralization. Through the lateral oil inlet structure, it addresses the pain points of traditional oil pumps, which are prone to getting stuck and wearing out quickly. Long plunger anti-gas lock and anti-sand downhole pump covers a 32-70mm pump diameter and a stroke range of 3-6 meters, meeting the well conditions with daily liquid production of 5-200m³. The pump constant (K value) of the long plunger anti-gas lock and anti-sand downhole pump is accurately calibrated and can be directly connected to the oilfield SCADA system to realize real-time monitoring of displacement.
Stuck Plunger?
Our side-entry design ensures sand particles stay suspended, preventing them from settling between the plunger and barrel.
Frequent Maintenance?
With 0.15mm+ thick chrome plating (HV800-1000), our components resist abrasion and corrosion, doubling your run time.
High Operating Costs?
API-standard replaceable parts mean you only replace what’s worn, not the whole system.
| Pump bore (mm) | Length of plunger (m) | Length of barrel (m) | Range of stroke (m) | Pump constant | Size of connecting sucker rod | Size of connecting tubing (in ) | Max outside diameter (mm ) |
| 32 | 4.5~7.4 | 1.5 | 3.0~6.0 | 1. 14 | CYG19 | 2 3/8TBG | 73 |
| 38 | 1.64 | CYG19 | 2 3/8 or 2 7/8TBG | 73/89 | |||
| 44 | 2. 23 | CYG19 | 2 7/8TBG | 89 | |||
| 50 | 3.69 | CYG19 | 2 7/8TBG | 89 | |||
| 57 | 5. 52 | CYG19 | 2 7/8 or 3 1/2 TBG | 100 | |||
| 73 | 7.70 | CYG22 | 3 1/2TBG | 114 |
Lateral Oil Inlet Design: Unlike standard pumps, our lateral intake creates a swirling effect that minimizes sand ingress into the precision gaps.
Precision Fit: Optimized clearance (0.002" - 0.005") ensures maximum volumetric efficiency even as the well ages.
Versatile Material Options: Choose from Carbon Steel, Stainless Steel, or Monel to match your H2S/CO2 levels.
The core structure of the long plunger anti-sand sucker rod pump includes:
Outer pipe: provides overall structural support and protection, and is the main pressure-bearing component outside the oil pump.
Barrel: As the working chamber for the reciprocating motion of the plunger, its processing accuracy directly determines the pump efficiency and sealing performance.
Plunger: forms a sealing pair with the pump barrel, and performs reciprocating linear motion during the oil pumping process to realize the upward transportation of crude oil.
Extended barrel: increases the plunger stroke range, improves the single displacement and suction efficiency.
Flow valve: The liquid outlet valve is installed above the plunger and opens when the plunger is on the stroke.
Inflow valve: allows liquid to enter the pump barrel to prevent backflow.
Tail deposited sand pipe: used for slight sanding conditions in oil wells, set at the bottom of the pump body, used to deposit sand near the pump suction port to prevent impurities from entering the pump cavity and causing blockage or plunger jamming.
Quality Control: 100% pressure tested and laser-measured before shipment.
Certification: API
Location: Kazakhstan Oilfield
Challenge: Sand-cut plunger failure every 60 days.
Result: Switched to DS Long Plunger Pump; currently running for 180+ days without intervention.
1. High sand content oil fields, such as alluvial geology of Bohai Bay and Shengli Oilfield.
2. High mineralization wells: Long plunger anti-sand sucker rod pump is suitable for saline water layers with total mineralization ≤50,000mg/L.
3. Heavy oil thermal recovery wells: API long plunger anti-sand sucker rod pump can withstand temperatures up to 150℃ and is used in conjunction with steam stimulation process.
Our company is located in Liaoning Province, China, covering an area of 10,000 to 30,000 square meters, with more than 100 employees and an annual production capacity of 5 million to 10 million US dollars. As a qualified supplier of enterprises such as CNPC and Sinopec, the company has passed the ISO9001 quality management system certification and obtained API 11AX international certification. The quality of API long plunger anti-sand sucker rod pump is strictly implemented in accordance with international standards.
We adhere to the "customer-centric" principle, continuously improve the performance and service quality of various products such as API long plunger anti-sand sucker rod pump, and are committed to providing reliable, efficient, and economical products to the global oil drilling industry.
