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Rotary steerable drilling system with low cost, high build-up rate and high mechanical drilling speed

A rotary steerable drilling and rotary steerable technology, applied in directional drilling, drilling equipment, driving devices for drilling in wellbore, etc., can solve the problems of high cost, poor reliability, complex structure, etc., to ensure power supply and communication The effect of stability, low manufacturing cost and low processing difficulty

Pending Publication Date: 2018-11-20
XIAN SHIDA STEERING OILFIELD TECH CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a rotary steerable drilling system with low cost, high build-up rate and high ROP, so as to overcome the problems in the prior art that the structure is very complex, resulting in high cost, poor reliability and short life.

Method used

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  • Rotary steerable drilling system with low cost, high build-up rate and high mechanical drilling speed
  • Rotary steerable drilling system with low cost, high build-up rate and high mechanical drilling speed
  • Rotary steerable drilling system with low cost, high build-up rate and high mechanical drilling speed

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Embodiment Construction

[0028] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] see figure 1 , a rotary steerable drilling system with low cost, high build-up rate and high ROP, including a rotary steerable drilling tool 1, a downhole dynamic drilling tool 2, a wireless short transmission receiving sub 3, MWD4 and LWD5. The upper end of the said rotary steerable drilling tool 1 is threadedly connected with the lower end of the downhole power drilling tool 2, and the upper end of the downhole power drilling tool 2 is connected with the lower end of the wireless short transmission transceiver nipple 3 by threads, and the wireless short transmission short transmission short The upper end of section 3 is connected with the lower end of MWD 4 by threads, and the upper end of MWD4 is connected with the lower end of LWD5 by threads. In this way, a rotary steerable drilling system with double power mechanism and double guide devi...

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Abstract

The invention relates to a directional drilling technology in the field of oil and gas resources, in particular to a rotary steerable drilling system with a low cost, a high build-up rate and a high mechanical drilling speed in order to solve the problems that structures in existing technologies are very complicated, correspondingly the cost is high, the reliability is poor and the service life isshort. The rotary steerable drilling system is characterized by comprising a rotary steerable drilling tool, the upper end of the rotary steerable drilling tool is in threaded connection with the lower end of a downhole power drilling tool, the upper end of an MWD is in threaded connection with the lower end of an LWD, the upper end of the downhole power drilling tool is in threaded connection with the lower end of a wireless short transmission receiving short section, and the upper end of the wireless short transmission receiving short section is in threaded connection with the lower end ofthe MWD.

Description

technical field [0001] The patent of the present invention relates to the directional drilling technology in the field of oil and gas resources, in particular to a rotary steerable drilling system with low cost, high build-up rate and high ROP. Background technique [0002] High build-up rate rotary steerable drilling technology represents the highest level of drilling technology development in the world today, mainly including five parts: surface monitoring system, two-way communication system, downhole measurement and control system, downhole power system, and rotary steerable tool system. This technology has the advantages of high drilling efficiency, high safety, good borehole quality, not easy to deposit cuttings, low friction, and can work in harsh environments and complex geological conditions, especially in extended-reach well footage and directional drilling intelligence There has been considerable development in automation and automation. [0003] With the develop...

Claims

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Application Information

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IPC IPC(8): E21B7/06E21B4/04
CPCE21B4/04E21B7/06E21B7/068
Inventor 周静
Owner XIAN SHIDA STEERING OILFIELD TECH CO LTD
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