Inertial confinement and induction drilling device with PDC drill bit

A technology of inertial restraint and drilling device, which is applied to the driving device, drill pipe, drill pipe and other directions for drilling in the wellbore, which can solve the problems of high energy consumption, unsuitable drilling, and no inertial restraint drilling device. , to achieve the effect of reducing energy consumption

Active Publication Date: 2017-10-27
NORTHWESTERN POLYTECHNICAL UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The above-mentioned drilling tool patented technologies all have a good application effect of increasing the drilling speed, but they need the power support of mud pumps or gas pumps. On the one hand, they consume a lot of energy; on

Method used

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  • Inertial confinement and induction drilling device with PDC drill bit
  • Inertial confinement and induction drilling device with PDC drill bit
  • Inertial confinement and induction drilling device with PDC drill bit

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Embodiment Construction

[0043] This embodiment is an inertial constrained drilling device accompanied by a PDC drill bit, which includes a male gear input shaft 1, an inertia double ring gear 4, a planetary gear 5, an end face pressure bearing 3, a planetary carrier output shaft 6, a planetary gear shaft 7, Small sliding bearing bush 8 and multi-head torsion spring 12.

[0044] Wherein: the planetary carrier 6 is set on the outer circumferential surface of the sun gear input shaft 1, and the four planetary gear shafts 7 are evenly distributed on the surface of the planetary carrier; the eight planetary gears 5 are equally divided into two groups, and all the planetary gears are divided into two groups. The two sets of planetary gears are axially arranged on the shafts of the planetary gears, wherein the first set of planetary gears is connected to the drill collar end close to the input shaft of the sun gear; the end face of the first set of planetary gears is connected to the sun gear The inner end ...

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Abstract

Disclosed is an inertial confinement and induction drilling device with a PDC drill bit. A planetary frame is installed on the outer circumferential surface of an input shaft of the sun wheel in a sleeving mode, and a small sliding bushing is installed on the circumferential surface of the input shaft of the sun wheel in a sleeving mode; four planetary gear shafts are all arranged on the surface of the planetary frame, 8 planetary gears are divided into 2 groups and axially arranged on the planetary gear shafts in a sleeving mode, and one group of planetary gears are close to the drill-collar connecting end of the input shaft of the sun wheel; the end surfaces of the first group of planetary gears are fitted with the inner end surfaces of steps at one end of the input shaft of the sun wheel through end-surface pressure bearings. An output shaft of the planetary frame is installed on the outer circumferential surface of the input shaft of the sun wheel, so that the inner end surface of the output shaft of the planetary frame is fitted with the outer end surface of the planetary frame. The inertial confinement and induction drilling device with the PDC drill bit is completed on the basis of a planetary-wheel reducer structure, and has the advantages that the impact is stable and continuous, the durability is guaranteed, the quality of drilling holes is ensured, and the energy consumption is low.

Description

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Claims

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Application Information

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Owner NORTHWESTERN POLYTECHNICAL UNIV
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