Automatic control method and plunger controller for plunger gas lift production in oil and gas wells
A controller, oil and gas well technology, applied in the field of machinery, can solve problems such as low parameter efficiency
Active Publication Date: 2018-05-08
PETROCHINA CO LTD
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The present invention provides an automatic control method and a plunger controller for plunger gas lift production in oil and gas wells, so as to overcome the problem of low efficiency in adjusting parameters during plunger gas lift operation in the prior art
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
[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0023] figure 1 It is a flow chart of an embodiment of the automatic control method for plunger gas lift production of oil and gas wells according to the present invention. figure 2 It is a schematic diagram of too fast arrival in the method embodiment of the present invention. image 3 It is a schematic diagram of too slow arrival in the metho...
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 provides an automatic control method and a plunger controller for plunger gas lift production of oil and gas wells. The present invention is used for the automatic control method of plunger gas lift production in oil and gas wells, comprising: the plunger controller determines and determines the first rise time threshold and The second rising time threshold; when it is detected that the actual rising time of the plunger is less than the first rising time threshold, the freewheeling time is extended by the first preset freewheeling time step, and the shut-in time is shortened by the first preset shut-in time Step length; when it is detected that the actual rise time of the plunger is greater than the second rise time threshold, the freewheeling time is shortened by the first preset freewheeling time step, and the shut-in time is extended by the first preset shut-in time step; When it is detected that the actual rise time of the plunger is between the first rise time threshold and the second rise time threshold, stop adjusting the freewheeling time and shut-in time. The invention improves work efficiency.
Description
technical field [0001] The invention relates to mechanical technology, in particular to an automatic control method and a plunger controller for plunger gas lift production in oil and gas wells. Background technique [0002] The plunger gas lift process is a drainage gas recovery technology method that uses the energy of the gas well itself to discharge the liquid out of the wellbore. This technology uses the plunger as the mechanical interface between gas and liquid, uses the gas produced by the gas well to push the plunger to move up and down periodically in the tubing, and then periodically lifts the liquid produced in the formation to the ground, and Produce gas. As a plunger at the gas-liquid interface, it can effectively prevent the gas from going up and the liquid from falling back, reduce the "slipping" effect of the liquid from the bottom of the well to the wellhead, and greatly improve the efficiency of the gas to lift the liquid. This process is mainly suitable ...
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 Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/00E21B47/009
Inventor 韩强辉刘双全田伟李耀德李旭日肖述琴汪雄雄卫亚明李丽杨旭东
Owner PETROCHINA CO LTD