Specifications for energy conservation monitoring of oilfield production systems

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1. Energy-saving monitoring specifications for oilfield production systems (SY/T 6275-2007) 1. The scope of application standard stipulates the requirements and methods for energy-saving monitoring items and evaluation, energy-saving inspection items, energy-saving monitoring tests, and result evaluation of oilfield mechanical oil production systems, crude oil gathering and transportation systems, water injection ground systems, power supply and distribution systems, boilers and other oilfield production systems and major energy-consuming equipment. The standard is applicable to the energy-saving monitoring and evaluation of oilfield production systems such as mechanical oil production systems, crude oil gathering and transportation systems, water injection surface systems, and power supply and distribution systems. 2． Monitoring items and indicator requirements 2.1 Mechanical oil production system 2.1.1 Pumping well monitoring items and indicator requirements Monitoring items and indicator requirements are shown in Table 7-1. The influence coefficient K1 of oilfield permeability on mechanical production well system efficiency is shown in Table 7-2. The influence coefficient K2 of the pump hanging depth on the efficiency of the mechanical production well system is shown in Table 7-3. Table 7-1 Pumping unit well energy-saving monitoring items and indicator monitoring items limited value energy-saving evaluation value Motor power factor ≥0.40 — Balance L/(%) 80≤L≤110 — System efficiency (thin oil well)/(%) ≥18/(K1·K2) ≥29/(K1·K2) System efficiency (heavy oil thermal recovery well)/(%) ≥15 ≥20 Note: K1 is the coefficient of influence of oilfield permeability on mechanical production well system efficiency. ； K2 is the coefficient of influence of the pump hanging depth on the efficiency of the mechanical production well system. Table 7-2 The influence coefficient of oilfield permeability on the efficiency of mechanical production well system. Oilfield type: Extra low permeability oil field, low permeability oil field, medium and high permeability oil field K1 1.6 1.4 1.0 Table 7-3 The influence coefficient of pump hanging depth on the efficiency of mechanical production well system. Pump hanging depth 2500m K2 1.00 1.05 1.10 2.1.2 Monitoring items and indicator requirements for electric submersible pump wells The monitoring items and indicator requirements are shown in Table 7-4. Table 7-4 Submersible electric pump well energy-saving monitoring items and indicators Monitoring item limit values ​​Energy-saving evaluation value Motor power factor ≥ 0.72 — System efficiency / (%) ≥ 22 ≥ 33 2.1.3 Screw pump well monitoring items and indicator requirements Monitoring items and indicator requirements are shown in Table 7-5. Table 7-5 Screw pump well energy-saving monitoring items and indicators Monitoring item limit values ​​Energy-saving evaluation values ​​Motor power factor ≥ 0.72 — System efficiency/(%) ≥ 22 ≥ 35 2.2 Crude oil gathering and transportation system 2.2.1 Monitoring items and indicator requirements for pump units and outlet valves Monitoring items and indicator requirements are shown in Table 7-6. Table 7-6 Pump unit and outlet valve energy-saving monitoring items and indicators Monitoring item evaluation indicators Q≤25 25