Logging-while-drilling instrument with high-strength anti-seismic function for petroleum drilling

A logging-while-drilling tool and oil drilling technology, which is applied in wellbore/well components, measurement, earthwork drilling and production, etc., which can solve the problem of damage to logging instruments, the reduction of shock absorption effect of rubber shock absorbing rings, and reduce the use of logging instruments Life and other issues, to avoid collision damage and avoid excessive reset speed

Pending Publication Date: 2022-04-29
王静凯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the decline in the damping effect of the rubber shock absorbing ring, the logging instrument is hard-connected to the drill collar, causing all the vibration on the drill collar to be transmitted to the logging instrument, reducing the service life of the logging instrument, even during drilling. The shortcoming of logging instrument damage, the technical problem to be solved is: to provide a logging-while-drilling instrument for oil drilling with high-strength anti-seismic function

Method used

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  • Logging-while-drilling instrument with high-strength anti-seismic function for petroleum drilling
  • Logging-while-drilling instrument with high-strength anti-seismic function for petroleum drilling
  • Logging-while-drilling instrument with high-strength anti-seismic function for petroleum drilling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A logging-while-drilling tool for oil drilling with high-strength anti-seismic function, such as Figure 1-Figure 12 As shown, it includes an outer drill collar 1, an inner drill collar 2, a logging instrument 3, a circumferential shock absorbing mechanism, a hydraulic shock absorbing mechanism, and an anti-shock mechanism. The middle part of the outer drill collar 1 is provided with an inner drill collar 2. The instrument 3 is installed in the cavity formed by the outer drill collar 1 and the inner drill collar 2, and the circumferential damping mechanism is arranged between the logging instrument 3 and the outer surface of the inner drill collar 2, which is used for hydraulic shock absorption to absorb torsional impact The mechanism is arranged on the lower side of the logging instrument 3, and the anti-shock mechanism is arranged on the lower side of the hydraulic damping mechanism, and the anti-shock mechanism cooperates mechanically with the hydraulic damping mechan...

Embodiment 2

[0035] On the basis of Example 1, such as Figure 2-Figure 6 As shown, the circumferential damping mechanism includes a damping rubber ring 401, an annular plate 402, a first fixed shell 403, a sliding block 404, a first spring 405, a spring leaf 406, a first guide plate 407, a connecting rod 408, a first A fixed seat 409, the first fixed ring 410, the first stopper 411, the second fixed seat 412, the rotating shaft 413, the one-way gear 414, the first bevel gear 415, the connecting seat 416, the second bevel gear 417, the straight The gear 418, the second fixed ring 419, the rotating ring 420, the first sliding rod 421, the first sliding plate 422, the second spring 423, the rotating block 424 and the connecting shaft 425, the upper and lower outer surfaces of the logging instrument 3 are fixed respectively. A shock-absorbing rubber ring 401 is connected to absorb the impact force. The outer ring surface of the shock-absorbing rubber ring 401 is convex, and the inner ring sur...

Embodiment 3

[0044] On the basis of Example 2, such as Figure 13 As shown, it also includes a circular tube 613, an annular frame 614, a third sliding rod 615, a seventh spring 616, a sealing shell 617 and a connecting plate 618, and the left and right parts of the annular shell 608 are respectively communicated with a circular tube 613. The outer surface of the shaped tube 613 is fixedly connected with a ring frame 614, and the upper and lower parts of the ring frame 614 are respectively slidably connected with a third sliding rod 615, and the outer surface of the third sliding rod 615 is slidably connected with a seventh spring 616, and the seventh spring 616 The two ends of the two circular tubes 613 are fixedly connected to the ring frame 614 and the third sliding rod 615 respectively. The outer ends of the two circular tubes 613 are provided with a sealing shell 617. The circular hole for circulation, the sealing shell 617 is in sealing fit with the circular tube 613 , the upper and ...

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Abstract

The invention relates to the field of logging while drilling, in particular to a logging while drilling instrument with a high-strength anti-seismic function for petroleum drilling. The technical problems that the damping effect of a rubber damping ring is reduced, a logging instrument is in hard connection with a drill collar, vibration on the drill collar is completely conducted to the logging instrument, the service life of the logging instrument is shortened, and even the logging instrument is damaged in the drilling process are solved. According to the technical scheme, the logging-while-drilling instrument with the high-strength anti-seismic function for petroleum drilling comprises an inner drill collar, a logging instrument body, a circumferential damping mechanism and a hydraulic damping mechanism, the circumferential damping mechanism is arranged between the logging instrument body and the outer side face of the inner drill collar, and the hydraulic damping mechanism used for absorbing torsional impact is arranged on the lower side of the logging instrument body. By arranging the circumferential damping mechanism, the logging instrument and the inner drill collar are prevented from being collided and damaged, and by arranging the hydraulic damping mechanism, the logging instrument is prevented from being damaged.

Description

technical field [0001] The invention relates to the field of logging-while-drilling, in particular to a logging-while-drilling instrument for oil drilling with high-strength anti-seismic function. Background technique [0002] Logging while drilling technology uses the measured drilling parameters and formation parameters to adjust the drill bit trajectory in time to drill along the direction of the target layer. Since the formation parameters obtained by logging while drilling are the formation parameters just drilled, it is closest to the formation parameters. In the original state, the logging-while-drilling instrument is placed in the drill collar. In addition to conventional logging such as resistivity, sound velocity, neutron porosity, and density and some imaging logging, it also measures bit pressure, torque, rotational speed, and annular space. Drilling parameters such as pressure, temperature, chemical composition, etc. [0003] The logging-while-drilling instrume...

Claims

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Application Information

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IPC IPC(8): E21B47/16E21B47/017
CPCE21B47/16E21B47/017
Inventor 王静凯
Owner 王静凯
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