„Oil and gas are among the world's most important energy suppliers. Although new deposits are still being discovered, already preceded oil fields continue being serviced, the production of this viscous solids-containing raw material is becoming more complex. By using NETZSCH-Drive Heads and the progressing cavity pump-systems, many of these reserves can be explored and used efficiently.“
Jörg Eitler
Business Field Manager Oil & Gas Upstream
石油及天然气深井泵
石油及天然气是世界各地中最重要能源来源。尽管仍有新的油气田被发现，但运输这些原材料正越来越昂贵而且要求技术的持续提高。使用 NETZSCH 单螺杆泵系统可有效地将提取大部分存储的石油及天然气。这就要求从发现新油气田开始就必须要求与石油和天然气公司保持高度紧密的合作，并要求我们的工程师和技工不断地改善泵、驱动装置和系统。该领域恶劣的地址环境、海上开采和在 2500 米以下的深度进行安装，不断地向我们发起新的挑战。在特别重要的开采地区，通过建立 NETZSCH 泵中心，我们为世界各地的合作伙伴们创造了出色的服务环境。同时，NETZSCH 的产品正向新的应用范围拓展，如天然气钻孔脱水和浅层地热能。
First progressing cavity pump with submersible drive in Central Europe:
NETZSCH ESPCP prevents blowout and environmental impact from leaks
Around 30 years ago, an energy supplier in Hannover had started to use an underground deposit for gas storage. After a few years, however, it became evident during pumping of the medium that the geological horizon in which it was stored had emitted substantial oil quantities into the gas. More...
NETZSCH Upstream conveys extremely difficult media to oil and gas fields
Despite all efforts to promote renewable energies, global demand for crude oil and natural gas has continued unabated. Methane from coal seams and highly viscous oil at more than 10,000 mPas are already of commercial interest, but are just as complicated to extract. In the Qinshui Basin in China the extraction is as difficult as the extraction of oil sand mixtures from the Sudanese desert where temperatures up to 50°C can be reached. More
Pumps for the Oil Industry
NETZSCH pumps for the oil industry are characterized by robust and reliable design. Constructions and materials are adapted to the requirements. Together with the customer's requirements are specified in the planning phase and the optimal pump is selected. The use of innovative pump technologies from NETZSCH offers safe and reliable production processes at low life-cycle costs. On this there is a large range of products available from which you can select the appropriate each pump system for on- and offshore, up-, mid- and downstream area.
Optimum UPSTREAM Solutions for Oil Water and Gas Production
Within the Business Unit Pumps & Systems the Business Field Oil & Gas Upstream specializes in the delivery of systems with progressing cavity pumps for the production of crude oil and other highly viscous materials; the pumps above mentioned are used throughout the world. Whether it is a large oilfield operator or a small production company – the experts at NETZSCH give their attention to all projects. At the same time we try to correspond to the increasing technological demands by highly efficient development work. Success in corporate research and development work with universities and operators of our pumps in the field confirms this fact.
NETZSCH Progressing Cavity Pumps for Upstream:
- Standard Progressing Cavity Pumps
- Insertable Progressing Cavity Pumps
- NETZSCH Submersible Progressing Cavity Pumps
NTZ Progressing Cavity Pumps
- Efficient handling of fluid High viscosity oil – more than 50.000 cP at the well head
- High sand content – up to 40% at the suction side
- High gas content – app. 40% free gas at the suction side
- Water cut – up to 100%
- Density – up to 0.82 kg/dm³ (45° API)
- Temperature – up to max. 160°C
- Pressure – up to 300 bar
- Production – up to 300 m³/day (1900 bpd)
Key Advantages
- Lower life cycle cost
- Easy installation and transport
- Less number of wear parts
NTZ-DT Geometry NTZ-ST Geometry
| Pump Type | nominal production rate [m³/d] | nominal production rate [bpd] | max. differential pressure [bar] | minimum tubing size | minimum casing size | |||
|---|---|---|---|---|---|---|---|---|
| NTZ 166* | 0,5 to 4,5 | 3 to 30 | 240 | 1,66" | 3 1/2" | |||
| NTZ 238* | 1,3 to 15 | 8 to 80 | 240 | 2 3/8" | 3 1/2" | |||
| NTZ 278* | 3 to 130 | 20 to 800 | 300 | 2 3/8" | 4 1/2" | |||
| NTZ 350* | 13 to 140 | 80 to 880 | 300 | 2 7/8" | 5 1/2" | |||
| NTZ 400* | 25 to 475 | 160 to 3000 | 240 | 2 7/8" | 5 1/2" | |||
| NTZ 450* | 60 to 390 | 375 to 2450 | 240 | 3 1/2" | 6 5/8" | |||
| NTZ 500* | 110 to 475 | 695 to 3000 | 200 | 4 1/2" | 6 5/8" |
NETZSCH Insertable Progressing Cavity Pumps
The main feature of Progressing Cavity Pumps (rotor & stator) is their assembly inside the tubing. Thus, the pump is not connected to the production line but assembled inside it.
Applications
- Wells with low flow – the cost of the intervention makes the use of a normal pump economically not suitable
- Wells with a high frequency of interventions (independent of the flow)
- Flow range 1,3 to 491 bpd at 100 rpm
- Pressure range 100 to 240 bar
- Pump with downhole sensors
Advantages
- Minimization of the time of intervention
- Minimization of costs of rig
- Minimize rig’s costs in workover services, this minimizes production losses
- Pump substitution without removing it from the tubing
- Pump substitution with flushby equipment
- Up to 60 % savings in pump replacement
- Does not require removal of downhole sensors and cable
More detailed information please contact info.nps@netzsch.com.
NTU Progressing Cavity Pumps
Produced with steel tube conform with the same internal geometry as the stator (helical). Thus the elastomer has a uniform wall and produces even distribution of the elastomer. The main NTU pump feature is its lower operation and starting torque due to its lower swelling when exposed to temperature variations and chemically aggressive fluids.
Advantages
- Short pump length
- Lower starting and operational torque
- Longer run life under severe fluid conditions
- Less influence due to temperature and chemicals
- Easier to assemble in wells with deviations
- Lower hysteresis
- Better heat dissipation
NTM Progressing Cavity Pump
- Maximum flexibility in the perspective of viscosity andtemperature
- No chemical attack on the elastomer
- Perfectly suited in combination with thermal treatment of the wells
Advantages
- Short pump length
- Lower starting and operational torque
- Longer run life under severe fluid conditions
- Less influence due to temperature and chemicals
- Easier to assemble in wells with deviations
- Lower hysteresis
- Better heat dissipation
NETZSCH Drive Head Types
General features
- Different Polished Rod speed can be achieved by changing the pulleys or by using a Variable Speed Drive
- All Drive Head Types can be supplied for the Polished Rod Sizes 1 1/4 and 1 1/2
- Axial Load: 9 to 33 klb
- Sealing system: Stuffing Box, Mechanical Seal or Lip Seal System
- Flow Tee Connection: Flange API Spec. 6A Type 6B/Thread API 5B
NETZSCH Drive Heads – model ATEX – are approved in compliance with directive 94/9/EC for use in zone 1 (compared to name plate zone II 2G EEx c,k II T3 classification and the conformity declaration). The drive head is designed for commercial plant and in corformity to the following regulations and norms:
- Conform to the Machinery Directive 2006/42/EC
- Conform to the pertinent provisions of ATEX Directive 94/9/EC
- Conform to the pertinent provisions of the following other directives
- DIN EN 13463-1
- DIN EN 13463-5
- DIN EN 13463-8 - DIN EN ISO 12100
- DIN EN 1127-1
- ISO 15136-2
Drive Head Accessories
Very often small accessories can be decisive for the safety of the service people and for the lifetime of the equipment. Therefore NETZSCH Pumpen & Systeme GmbH offers several special tools based on the service experience for more than
20 years PCP downhole pump installations and start
Benefits and special features
- Use in explosives atmospheres (CE II 2G EEX c, k IIB T3)
- Integrated overload protection
- Integrated hydraulic brake
- Integrated safety clamp
- Exchangeable sealing box
- Exchangeable flange connections
Spare parts sets are on request
