Drilling rate control system and control method
A technology of a control system and a control method, which is applied in the automatic control system of drilling, measurement of drilling, earth-moving drilling and production, etc., can solve the problems of wellbore collapse, wellbore instability, low drilling efficiency, etc.
Active Publication Date: 2022-03-25
CHINA UNIV OF PETROLEUM (BEIJING)
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Problems solved by technology
However, this method cannot achieve real-time control, so that the drilling speed of the drill bit must be regulated in time. If the drilling speed is not properly controlled, the well wall will be unstable, the wellbore trajectory will deviate, and the drilling efficiency will be low, which will seriously lead to The well wall collapsed, making the well scrapped and causing huge economic losses
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[0050] The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope. Modifications of various equivalent forms fall within the scope defined by this application.
[0051] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment.
[0052] The following will combine Figure 1 to Figure 4 The cont...
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The present application discloses a drilling speed control system and control method of a drill bit. The control method includes: the control method includes: receiving ground engineering parameters of ground engineering equipment; receiving downhole information of the target well during the drilling process of the drill bit. The downhole information includes: near-drill engineering parameters and environmental characteristic parameters; input the surface engineering parameters and the downhole information into comprehensive data processing equipment, and the comprehensive data processing equipment inputs the surface engineering parameters and the downhole information into optimization model and obtain the downhole decision parameters and surface decision parameters; adjust the surface engineering equipment according to the surface decision parameters, adjust the surface engineering parameters to the surface decision parameters; adjust the drill bit according to the downhole decision parameters, and adjust the drill bit operating parameters Adjusted as the downhole decision parameter. In the present application, the drilling speed of the drill bit can be effectively controlled by simultaneously adjusting the surface engineering parameters and the working parameters of the drill bit.
Description
technical field [0001] The invention relates to the technical field of oil drilling, in particular to a control system and a control method for the drilling speed of a drill bit. Background technique [0002] The descriptions in this section merely provide background information related to the present disclosure and do not constitute prior art. [0003] With the global energy shortage, oil and natural gas resources have become the energy resources that countries are generally competing for, and all countries are stepping up the exploration and development of oil and gas. Drilling is one of the most critical links in the process of oil and gas exploration and development. During the drilling process, it is necessary to effectively control the surface engineering parameters that affect the drilling speed, so that the drilling speed of the drill bit can be reasonably controlled, and the operation time can be effectively reduced. job cost. [0004] In the prior art, the downho...
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IPC IPC(8): E21B44/04E21B45/00E21B47/00
CPCE21B44/04E21B45/00E21B47/00
Inventor 宋先知裴志君李根生黄中伟田守嶒祝兆鹏
Owner CHINA UNIV OF PETROLEUM (BEIJING)