Method and device for calculating motion angle of suspension point of oil pumping unit based on angle relationship
A technology of movement angle and angle relationship, applied in the direction of construction, etc., can solve the problems of being easily affected by the external environment, low measurement accuracy, affecting oil production efficiency, etc.
Active Publication Date: 2016-03-23
PETROCHINA CO LTD
View PDF4 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] When the pumping unit is stopped, the normal oil production order is interrupted, which easily affects the oil production efficiency
Furthermore, the displacement signal measured by the displacement sensor is easily affected by the external environment. When the vibration of the suspension point is severe, the displacement signal measured by the displacement sensor has high noise content and is unstable, and the measurement accuracy is low.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0058] Before explaining the technical solution in the embodiment of the present invention, first the pumping unit involved in the embodiment of the present invention is introduced as follows:
[0059] see figure 1 , The pumping unit includes a brake device 1, a power motor 2, a gearbox pulley 3, a gearbox 4, an input shaft 5, an intermediate shaft 6, a crank shaft center 7, a crank 8, a connecting rod shaft center 9, a bracket 10, and a crank bal...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a method and device for calculating the motion angle of a suspension point of an oil pumping unit based on the angle relationship and belongs to the technical field of oil and gas field engineering automation. A connecting line between the center of a crankshaft and a pivot of a walking beam serves as an assigned rod, and a connecting line between the center of a connecting rod shaft and the pivot of the walking beam serves as a motion rod. The method comprises the steps that the length of the assigned rod and a first included angle between the assigned rod and a support are calculated; in the operating process of the oil pumping unit, the motion angle of a crank is measured; a second included angle between the assigned rod and the motion rod is calculated; a third included angle between a rear arm of the walking beam and the motion rod is calculated; the motion angle of the suspension point is calculated according to the first included angle, the second included angle and the third included angle. The defect of directly measuring the displacement is avoided, the calculated motion angle and displacement data are more accurate, the calculation mode is simple and fast, the measuring accuracy is improved, cost of maintaining a displacement sensor is saved, it is unnecessary to disturb the normal oil production order, and the influence on oil production efficiency is avoided.
Description
technical field [0001] The invention relates to the technical field of oil and gas field engineering automation, in particular to a method and a device for calculating the motion angle of a suspension point of a pumping unit based on an angle relationship. Background technique [0002] Oil pumping by pumping unit is the most advanced process in the process of petroleum production, and it is of great significance to grasp the operation status of the pumping unit in time for the production and management of petroleum. [0003] In order to grasp the operating state of the pumping unit, the pumping unit can be stopped first, and a displacement sensor is installed on the suspension point of the pumping unit. According to the displacement signal measured by the displacement sensor, the displacement of the suspension point is determined, thereby determining the operation of the pumping unit. state. [0004] In the process of realizing the present invention, the inventor finds that...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): E21B47/009
Inventor 任桂山王存博赵智徐国安
Owner PETROCHINA CO LTD