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Load reducing and efficiency improving method for rod pumping well

A technology of pumping wells and pumping units, which is applied in earthwork drilling, wellbore/well components, production fluids, etc., can solve the problems of high cost in low-permeability reservoirs, and achieve the effect of reducing suspension point load and high cost

Active Publication Date: 2016-12-07
PETROCHINA CO LTD
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Problems solved by technology

[0004] The main purpose of the present invention is to provide a method for reducing load and improving efficiency of pumping wells, so as to solve the problem of high cost in developing low-permeability reservoirs

Method used

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  • Load reducing and efficiency improving method for rod pumping well
  • Load reducing and efficiency improving method for rod pumping well
  • Load reducing and efficiency improving method for rod pumping well

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Embodiment Construction

[0030] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0031] In this embodiment, the method for reducing the load of the pumping well and improving the efficiency includes: analyzing a plurality of compositional factors that affect the suspension point load of the pumping well, to determine the degree of influence of the compositional factors on the suspension point load; according to the The degree of influence of compositional factors on the suspension point load is optimized to reduce the suspension point load by optimizing the corresponding compositional factors.

[0032] In this embodiment, by analyzing a plurality of compositional factors that affect the suspension point load of the pumping unit well, to determine the degree of influence of ...

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Abstract

The invention provides a load reducing and efficiency improving method for a rod pumping well. The load reducing and efficiency improving method for the rod pumping well comprises the steps that multiple component elements influencing a polished rod load of the rod pumping well are analyzed, so that the degree of influence of the component elements on the polished rod load is determined; and the corresponding component elements are optimized according to the degree of influence of the component elements on the polished rod load, so that the polished rod load is reduced. By the adoption of the technical scheme, the multiple component elements influencing the polished rod load of the rod pumping well are analyzed to determine the degree of influence of the component elements on the polished rod load, and the corresponding component elements are optimized according to the degree of influence of the component elements on the polished rod load to reduce the polished rod load, so that the polished rod load is effectively reduced, and the problem that the cost is high when a low-permeability reservoir is exploited is solved easily.

Description

technical field [0001] The invention relates to the field of oil field development, in particular to a method for reducing load and improving efficiency of pumping wells. Background technique [0002] According to survey data, the remaining oil resources in the country are 79.9 billion tons, of which low-permeability resources are 43.1 billion tons, accounting for 60% of the total remaining oil resources. Therefore, low-permeability oil reservoirs will become the main body of future oilfield development, and the production scale will also will increase day by day. Since low permeability reservoirs have the characteristics of "low permeability, low pressure, and low production", in order to save the investment cost of oilfield construction, the reservoirs are mostly developed by cluster directional well groups. The wellbore trajectory, wellbore structure, seepage and fluid production law have undergone major changes, and the original "three-pumping" equipment optimization se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/00
Inventor 梁毅石海霞朱天寿曾亚勤黄伟甘庆明赵春樊松崔文昊魏韦
Owner PETROCHINA CO LTD
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