Steering characteristic simulation experimental device of static push-abut type rotating steering drill tool assembly and working method of steering characteristic simulation experimental device

A technology for simulating an experimental device and a drilling tool assembly, which is used in directional drilling, earth-moving drilling, surveying, etc., can solve the problem of not reflecting the dynamic influence of the bottom drilling tool assembly, etc., and achieves improved accuracy, application breadth, and strong operability. , the effect of low cost

Active Publication Date: 2018-02-16
CHINA UNIV OF PETROLEUM (EAST CHINA) +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, some scholars use the static model to calculate the steering characteristics of the static push-back rotary steerable BHA, but it cannot reflect the dynamic influence of the rotary motion of the bottom hole assembly.
The kinetic theoretical model considers more comprehensive factors, but the selection of some calculation parameters is empirical

Method used

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  • Steering characteristic simulation experimental device of static push-abut type rotating steering drill tool assembly and working method of steering characteristic simulation experimental device
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  • Steering characteristic simulation experimental device of static push-abut type rotating steering drill tool assembly and working method of steering characteristic simulation experimental device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A static pushing type rotary steerable drilling tool assembly steering characteristic simulation experiment device, comprising: a simulated bottom hole assembly, a simulated wellbore 11 arranged outside the simulated bottom hole assembly, a test bench and a drilling tool position adjustment frame;

[0041] The simulated bottom hole assembly includes: a flexible sub-joint 13, a simulated stabilizer 14, a mating sub 15, a mandrel 16, a non-rotating sleeve 17 and a simulated drill bit 31 connected sequentially along the simulated drill collar;

[0042] The test bench includes: a drill bit force monitoring platform, a bracket tube 26 and a sleeve 27 are arranged in sequence in the axial direction;

[0043] The drilling tool assembly position adjustment frame is used for adjusting the position of the simulated bottom hole assembly vertically and / or adjusting the position of the simulated bottom hole assembly along the vertical direction.

Embodiment 2

[0045] As described in Example 1, a static pushing type rotary steerable drilling tool assembly steering characteristic simulation experiment device, the difference is that the drilling tool assembly position adjustment frame includes an L-shaped slide rail 2, on which the L-shaped slide rail The vertical section top of 2 is provided with top motor 6, pulley 7, and described pulley drives steel cable 8; On described steel cable 8, be provided with support 4, be provided with roller 5 at the two ends of described support 4, described roller 5 cooperates with the L-shaped slide rail 2; the simulated shaft 11, the test bench, and the servo motor 9 driving the simulated drill collar are all fixedly connected with the support 4.

[0046] A tripod 1 is arranged on the vertical section side of the L-shaped slide rail 2 .

Embodiment 3

[0048] As described in Example 1, a static pushing-type rotary steerable drilling tool assembly steering characteristic simulation experiment device, the difference is that the drill bit force monitoring platform includes a base plate 34, a loading fixed support 37 that drives the base plate 34 to move horizontally , a loading lead screw 35 for driving the axial movement of the bottom plate 34 , a rotating hand wheel 36 , and a simulated drill bit lateral force sensor 32 and a simulated drill bit axial force sensor 33 are arranged on the bottom plate 34 .

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Abstract

A steering characteristic simulation experimental device of a static push-abut type rotating steering drill tool assembly comprises a simulation bottom drill tool assembly, a simulation shaft arrangedto be out of the simulation bottom drill tool assembly in a sleeving mode, an experiment table and a drill tool position adjusting frame. The simulation bottom drill tool assembly comprises a flexible short section, a simulation stabilizer, a matching joint, a central spindle, a non-rotating sleeve and a simulation drill bit which are connected sequentially along a simulation drill collar. The experiment table comprises a drill bit stress monitoring table, a support cylinder and a sleeve which are sequentially arranged in the axial direction. The drill tool assembly position adjusting frame is used for adjusting the position of the simulation bottom drill tool assembly in the perpendicular direction and / or obliquely adjusting the position of the simulation bottom drill tool assembly inthe perpendicular direction. The steering characteristic simulation experimental device of the static push-abut type rotating steering drill tool assembly can simulate the steering function of the static push-abut type rotating steering drill tool assembly used in the practical well drilling process, and a complex well drilling site experiment is converted into an indoor experiment. The experimenthas the advantages of being high in practicability and low in cost.

Description

technical field [0001] The invention relates to a static pushing type rotary steerable drilling tool assembly steering characteristic simulation experiment device and a working method thereof, and belongs to the technical field of mechanical experiments of petroleum drilling pipe strings. Background technique [0002] Rotary steerable drilling technology is a cutting-edge technology in the field of drilling engineering technology. It has the advantages of fast drilling speed, good borehole quality, and strong horizontal section extension ability. It is increasingly used in complex structural wells such as horizontal wells, extended reach wells, and multilateral wells. widely. Two types of commercial rotary steerable systems have been formed in the world: push-by type and point-to-point type. It started relatively late in China, and the current research efforts are mainly focused on push-by rotary steerable drilling tools. Among them, the static push type is a commonly used...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/04E21B47/00
CPCE21B7/04E21B47/00
Inventor 管志川王恒史玉才刘永旺李涛梁德阳
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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