Rotary steerable drilling tool
A rotary steering and drilling tool technology, applied in rotary drilling, rotary drilling rig, directional drilling and other directions, can solve the problems of inability to take out the whole drilling tool, increase drilling cost, slow drilling speed, etc. The effect of reducing drilling cost and speeding up drilling
Inactive Publication Date: 2019-02-01
BEIJING LIUHE GREATNESS TECH
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
Usually, MWD and screw drilling tools are used together to complete the directional drilling operation. During the directional drilling process, the overall drilling tool cannot rotate, which seriously leads to slow drilling speed, increases drilling costs, and more seriously causes drilling sticking, and the overall drilling tool cannot be rotated. Take out, the wellbore is scrapped, and the economic loss is serious
Method used
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[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, so that those skilled in the art can implement it with reference to the description.
[0032] It should be understood that terms such as "having", "comprising" and "including" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.
[0033] Such as Figure 1 ~ Figure 3 As shown, a rotary steerable drilling tool is provided in one of the embodiments of the present invention, comprising:
[0034] Screw rod 1, rotary steerable drilling tool body 2, connecting rod 3, drill bit 4 and control module (not shown);
[0035] One end of the screw 1 is connected with a first driving motor 6;
[0036] One end of the rotary steerable drill body 2 is connected to the other end of the screw 1;
[0037] One end of the connecting rod 3 is connected to the other end of the rotary steerable drilling tool body 2;...
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Abstract
The invention discloses a rotary steerable drilling tool. The rotary steerable drilling tool comprises a screw rod, a rotary steerable drilling tool body, a connecting rod, a drill bit and a control module. a first driving motor is connected to one end of the screw rod, and one end of the rotary steerable drilling tool body is connected with the other end of the screw rod; one end of the connecting rod is connected with the other end of the rotary steerable drilling tool body; the drill bit is arranged at the other end of the connecting rod through a universal joint, wherein a groove extendingtowards the inside of the connecting rod is formed in one end of the connecting rod, and a transmission part is arranged at the other end of the rotary steerable drilling tool body; the transmissionpart is positioned in the groove, the transmission part comprises a second driving motor arranged at the other end of the rotary steerable drilling tool body and a rotating part arranged on an outputshaft of the second driving motor, and the rotating part is fixedly connected with the inner wall of the groove; and the control module includes a rotating speed sensor and a controller. The rotary steerable drilling tool is reasonable in design, simple in structure and low in cost, and has extremely high popularization value.
Description
technical field [0001] The invention relates to the technical field of oil extraction equipment, more specifically, the invention relates to a rotary steerable drilling tool. Background technique [0002] In the process of oil extraction, a rotary steerable drilling system is needed, which mainly includes a drilling rig installed on the oil well and a rotary rotary steerable drilling tool installed underneath for drilling. The shaft drive connection transmits the torque to the bit shaft, which drives the bit to drill. [0003] In directional well operations, in order to control the drilling direction of the drill bit, according to the design of the wellbore trajectory, it is necessary to perform directional drilling operations such as increasing inclination, decreasing inclination, and twisting azimuth during construction. Usually, MWD and screw drilling tools are used to complete the steerable drilling operation. During the steerable drilling process, the overall drilling ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E21B7/04E21B44/00E21B3/02E21B10/54
CPCE21B3/02E21B7/04E21B10/54E21B44/00
Inventor 冯建宇张文生杨佳
Owner BEIJING LIUHE GREATNESS TECH