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Oil well energy-saving production control system

A technology for production control and oil wells, which is applied in wellbore/well components, measurement, earthwork drilling and production, etc. It can solve the problems of affecting the operation of the control system, increasing production costs, and increasing the error of dynamic fluid level test data, etc.

Inactive Publication Date: 2019-05-31
CHINA PETROLEUM & CHEM CORP +1
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AI Technical Summary

Problems solved by technology

This method is limited by the technical level and management experience of the oil well production management personnel, and cannot detect changes in oil well conditions in time, cannot accurately diagnose and propose effective measures, resulting in oil wells in a state of high energy consumption and increased production costs.
The existing oil well energy-saving production control system usually adopts the method of predicting the oil well liquid level, the volumetric efficiency of the oil well pump or directly testing the oil well liquid level, and realizes the automatic adjustment of the oil well production parameters through the ground control device, which cannot realize the comprehensive diagnosis and analysis of the oil well working conditions. Optimization; at the same time, when the well depth is greater than 1500m, the working conditions of the oil casing annulus are more complicated. Due to the limitation of the existing test technology, the error of the test data of the dynamic liquid level increases and the accuracy is greatly reduced, thus affecting the operation of the control system

Method used

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  • Oil well energy-saving production control system

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Example 1: Single well control mode

[0025] The electrical parameter tester tests the voltage and current data of the main motor during operation, and the power diagram tester tests the suspension point load and displacement data; the data is transmitted to the data acquisition module inside the oil well controller through wired or wireless transmission. The data is transmitted to the host computer system, and the host computer system performs the following diagnosis and optimization on the oil well working conditions through the analysis of test data:

[0026] Stroke frequency optimization: When it is found that the oil well supply is insufficient, reduce the stroke frequency so that the volumetric efficiency of the oil well pump reaches the set lower limit value. Intermittent pumping system under working conditions; when the volumetric efficiency of the oil well pump exceeds the set upper limit, increase the stroke frequency so that the volumetric efficiency of the o...

Embodiment 2

[0030] Embodiment 2: multi-well control mode ( Figure 4 )

[0031] A set of upper computer system can control the energy-saving production of multiple oil wells at the same time, and its structure is as follows Figure 4 shown. The upper computer system is connected to multiple sets of oil well controllers at the same time, and each set of oil well controllers controls the data acquisition, balance motor and main motor control of one oil well; the upper computer system processes the data acquisition of each oil well controller in sequence according to the set order , Diagnosis and optimization of working conditions, and transmit the optimization results to the corresponding oil well controller at one time.

[0032]The multi-well control method can realize the centralized management of multiple oil wells in one block, save manpower, material resources, resources and reduce production costs.

[0033] The oil well energy-saving production control system in the present inventi...

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Abstract

The invention provides an oil well energy-saving production control system which comprises a host computer system, an electrical parameter tester, an indicator diagram tester and an oil well controller. The electrical parameter tester is connected to the oil well controller and connected with a main motor to detect the voltage and current data of the main motor in running and transmit the voltageand current data to the oil well controller, the indicator diagram tester is connected to the oil well controller to detect the polished rod load and movement position of a pumping unit and transmit the polished rod load and the movement position to the oil well controller, the oil well controller transmits the received detection data to the host computer system, the host computer system analyzes,diagnoses and optimizes the oil well working condition according to the received detection data and transmits the optimization result to the oil well controller, and the oil well controller controlsthe work of the main motor and a balancing motor according to the optimization result. The oil well energy-saving production control system realizes oil well supply and discharge coordinated production, reduces the energy consumption of oil well production, realizes intelligent control over oil well production and improves the automation degree of oilfield production.

Description

technical field [0001] The invention relates to the production field of rod pump wells in oil fields, in particular to an energy-saving production control system for oil wells. Background technique [0002] At present, in the production process of oilfields, the operation and management of pumping units usually use manual parameter adjustment, through manual judgment of well conditions, diagnosis of oil well production conditions, and formulation of oil well measures based on the judgment results. This method is limited by the technical level and management experience of the oil well production managers, and cannot detect changes in oil well conditions in time, cannot accurately diagnose and propose effective measures, resulting in high energy-consuming production of oil wells and increasing production costs. The existing oil well energy-saving production control system usually adopts the method of predicting the oil well liquid level, the volumetric efficiency of the oil we...

Claims

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Application Information

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IPC IPC(8): E21B47/00E21B47/12
Inventor 贾庆升张雷智勤功杭发琴于雪林李淑芳金鑫岳振玉肖姝徐建礼
Owner CHINA PETROLEUM & CHEM CORP
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