Design method and design device of sucker rod
A design method and sucker rod technology, applied in geometric CAD, special data processing applications, etc., can solve problems such as low efficiency, and achieve the effect of improving design efficiency
Active Publication Date: 2022-05-31
RICHFIT INFORMATION TECH +1
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Problems solved by technology
However, although the above design method gets rid of the limitation of the pole material, the designer often needs to combine the material and diameter of the pole when designing the pole, and repeatedly verify whether the designed pole can meet the allowable stress demand, resulting in very inefficient
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[0038] In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.
[0039] An embodiment of the present invention provides a design method for a sucker rod, wherein the sucker rod includes an N-level rod column (N is a positive integer) from bottom to top, figure 1 A flow chart for a design method for sucker rods, such as figure 1 As shown, the design method includes:
[0040] Step 101: Select a type of pole from the to-be-selected pole library as the first-level pole, and the first-level pole is the lowest pole among the N-level poles.
[0041] In the above implementation manner, the to-be-selected pole column library is established according to the current actual inventory situation, which includes all the poles that can be selected.
[0042] Step 102: According to the priority of various poles in the pol...
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The invention discloses a design method for sucker rods and belongs to the technical field of petroleum. The sucker rod includes N-class rods from bottom to top. The design method includes: selecting a rod from the library of rods to be selected as the first-grade rod, and the first-grade rod is located in the N-grade rod The bottom pole; according to the priority of various poles in the pole library to be selected, select the n-th pole in a bottom-up manner, and the priority of the n-th pole is higher than that of the n-1th pole The priority of the pole, the priority of the pole is determined according to the pole parameters of the pole. The pole parameters include allowable stress, rod diameter and allowable coefficient. The allowable coefficient is used to indicate the newness of the pole. The allowable stress and Corresponding to the material of the pole, the allowable coefficient of the new pole is greater than that of the non-new pole; where n and N are both positive integers, and 2≤n≤N. The invention improves the design efficiency of the sucker rod.
Description
technical field [0001] The invention belongs to the technical field of petroleum, and particularly relates to a design method and a design device of a sucker rod. Background technique [0002] The sucker rod is an important part of the pumping unit, and its two ends are connected to the polished rod and the plunger pump respectively to transmit power. [0003] A sucker rod consists of multiple stages of rods that are coaxially connected together. Now when designing sucker rods, if new rods of the same material are used at all levels, the first-stage rods (located at the bottom of the oil well and connected to the plunger pump) are usually designed first, so that the first-stage rods are The allowable stress meets the requirements, and then the second-level poles are designed upwards. In order to meet the allowable stress for the second-level poles, if the same materials are used for the second-level poles, the rods of the second-level poles The diameter only needs to be la...
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IPC IPC(8): G06F30/17
CPCG06F30/17
Inventor 吴延强王瑞河黄瑞帅松青史亚会闵春佳
Owner RICHFIT INFORMATION TECH