Method for preventing eccentric wearing of sucker rod and tube
A technology for oil well rods and oil wells, applied in the direction of drill pipes, drill pipes, casings, etc., which can solve problems such as eccentric wear of rods and tubes, and achieve the effect of overcoming eccentric wear and prolonging the pump inspection period
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Embodiment 1
[0050] The embodiment of the present invention provides a method for preventing eccentric wear of oil well rod and tube, see figure 1 , The method includes:
[0051] Step 101: Determine the full angle change rate of each well section of the construction oil well.
[0052] Step 102: According to the full-angle change rate of each well section, determine the well sections and the number of sucker rod centralizers and sucker rod guides.
[0053] Step 103: Run the pump barrel, tubing and tubing hanger into the construction oil well.
[0054] Step 104: Run the sucker pump plunger, sucker rod, sucker rod centralizer, and sucker rod guide in the tubing of the determined well section, and run the sucker pump plunger and sucker rod in the tubing of other well sections. Oil stick.
[0055] In this embodiment, other well sections are well sections other than the determined well section among the well sections of the construction oil well.
[0056] The embodiment of the present invention determines...
Embodiment 2
[0058] The embodiment of the present invention provides a method for preventing eccentric wear of oil well rod and tube, see figure 2 , The method includes:
[0059] Step 201: Determine the full angle change rate of each well section of the construction oil well.
[0060] Optionally, the length of each well section can be 25m.
[0061] In an implementation manner of this embodiment, step 201 may include:
[0062] Obtain the full-angle change rate of each section of the construction oil well from the deviation data table with the recorded full-angle change rate.
[0063] In practical applications, the inclination data table of the geological database records the full-angle change rate of the wellbore per 25m depth, and the full-angle change rate of each section of the construction oil well can be directly obtained from it.
[0064] In another implementation manner of this embodiment, step 201 may include:
[0065] According to the following formulas (1), (2), calculate the full-angle cha...
Embodiment 3
[0098] The embodiment of the present invention provides a method for preventing eccentric wear of oil well rod and tube. In this embodiment, the TXW09 well is taken as an example, and the following steps are performed:
[0099] 1. Admission the full-angle change rate of TXW09 well.
[0100] In the geological database TXW09 well inclination data table, the full angle change rate of the oil well bore per 25m depth is recorded.
[0101] 2. Determine the position and number of sucker rod centralizers and sucker rod guides according to the full-angle change rate.
[0102] The well section of TXW09 with a full-angle change rate greater than 3 is 1225m~1975m, and the length is 750m. In this section, a sucker rod guide and a centralizer need to be run. The lower position is: sucker rod + sucker rod centralizer + sucker oil guide + sucker oil guide + sucker rod centralizer + sucker rod. The formula for calculating the number of downloads is:
[0103] N = L 2 ( h 1 + h ...
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