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Well drilling top drive hoisting ring inclination angle detecting device and method

A technology of inclination angle and detection device, which is applied in the field of oil drilling and workover, and can solve problems such as uncertainty of the minimum lowering height of traveling vehicles, collisions, and damaged sensors

Pending Publication Date: 2020-10-16
王海峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The installation of sensors on the top drive body (the lifting ring is located on the top drive body) has the following disadvantages: the sensor is installed on the top drive body and moves upstream and downstream with the top drive, so the sensor signal transmission is difficult; the top drive works in an open environment and is affected by bad weather. The sensor is affected by moisture 1. The air temperature has a great influence; during construction, the lifting ring often collides with the drill pipe, and the sensor is damaged by direct impact or indirect vibration; the top drive lifting ring needs to be replaced frequently due to different construction conditions, so the sensor is installed near the top drive body or the lifting ring There are many problems, not a good solution
However, in the actual construction process, due to the uncertainty of the tilt state of the top drive ring, the minimum lowering height of the traveling car is uncertain. Functional control is not accurate enough
If the minimum limit height is set according to the inclination state of the lifting ring, then the lifting ring is in the floating state when the traveling car is lowered, the minimum limit point has not yet been reached, and the protection has not yet taken effect. The lifting ring has hit the drill floor; if the minimum protection height is set according to the floating state of the lifting ring, Then, during the drilling process, the driller usually tilts the top drive ring to the maximum angle and then continues to lower the traveling block to extend the effective footage. At this time, the anti-smashing device will produce automatic braking malfunctions and affect normal construction. There is no such thing in the prior art. good solution

Method used

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  • Well drilling top drive hoisting ring inclination angle detecting device and method
  • Well drilling top drive hoisting ring inclination angle detecting device and method
  • Well drilling top drive hoisting ring inclination angle detecting device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1, a device for detecting the inclination angle of the lifting ring of a drilling top drive mentioned in the present invention, its technical solution is: including a central processing unit, a forward tilt switch S1, a backward tilt switch S2, a floating ring floating operation switch S3, and a tilting cylinder 1 , rod gun 2, suspension ring 3, drill pipe elevator 4, the lower end of the suspension ring 3 is connected to the drill pipe elevator 4, and the upper end is connected to the top drive main body 5; one end of the tilting cylinder 1 is connected to the top drive main body 5, and the other One end is connected to the clamp 6 through the rod gun 2, the clamp 6 is fixed on the suspension ring 3, and the rod gun 2 is driven by the tilting liquid cylinder 1 to drive the suspension ring 3 to tilt;

[0042] The forward tilt switch S1, backward tilt switch S2 and ring floating operation switch S3 are set on the panel of the driller’s top drive operation box. ...

application example 1

[0057] Application case 1: The application of the detection device for the inclination angle of the lifting ring in realizing the protection function of the two-story platform

[0058] 1. Now set the vertical direction after the lifting ring floats as the initial position, the angle value is 0 degrees, the dangerous inclination angle corresponding to the forward tilt is set to angle θ1, and the dangerous inclination angle corresponding to the backward tilt is set to θ2. When the height of the top drive is in the area of ​​the second-floor platform and moves up and down, and the forward tilt angle of the lifting ring is greater than θ1 or the backward tilt angle is greater than θ2, a hang-up accident will occur.

[0059] 2. Start timing when you start to operate the forward tilt switch, and the ring starts to rotate forward from the initial position of 0 degrees. When the forward tilt angle θ1 is reached, the time for the forward tilt switch to be closed is T1; Start to operate...

Embodiment 2

[0066] Embodiment 2, the second application case of the present invention: the application of the suspension ring inclination angle detection device in realizing the anti-smashing function of the traveling vehicle:

[0067] The traveling block anti-smashing function needs to pre-set a minimum height at which the traveling block can be lowered. If the traveling block continues lowering below this height, the winch will automatically brake to prevent the top drive from hitting the rig floor. If the minimum height set for the anti-dropping of the traveling vehicle is too high, the protection purpose will not be achieved, and if it is set too low, it will often trigger protection malfunctions and affect normal construction operations. Since the inclination angle of the suspension ring changes continuously with different construction conditions, the minimum height at which the traveling vehicle can be lowered will also change accordingly. Therefore, the setting height for preventing...

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PUM

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Abstract

The invention relates to a well drilling top drive hoisting ring inclination angle detecting device and method. According to the technical scheme, the lower end of a hoisting ring is connected with adrill pipe elevator; the upper end of the hoisting ring is connected with a top drive main body; one end of an inclined hydraulic cylinder is connected with the top drive main body; the other end of the inclined hydraulic cylinder is connected with the hoisting ring; the inclined hydraulic cylinder drives a rod gun to drive the hoisting ring to be inclined; a tilt forward switch, a tilt backward switch and a hoisting ring floating operation switch are arranged on a driller top drive operation box panel; a tilt forward signal connected with the tilt forward switch, a tilt backward signal connected with the tilt backward switch, and a floating signal connected with a hoisting ring floating operating switch are connected to a central processor separately. The well drilling top drive hoistingring inclination angle detecting device has the following benefits: the tilt forward signal, the tilt backward signal and the floating signal are taken out of a top drive driller operating box; and when the driller carries out hoisting ring inclination operation, the top drive hoisting ring inclination angle detecting device can calculate the current inclination angle of the top drive hoisting ring to realize the protective purpose through identifying the signal type and duration of driller operation.

Description

technical field [0001] The invention relates to the technical field of oil drilling and workover, in particular to a device and a method for detecting the inclination angle of a drilling top drive suspension ring. Background technique [0002] The top drive drilling device (referred to as top drive) is an important oil drilling equipment, mainly used to drive the drilling tool to rotate for drilling construction. At the same time, the hydraulic operating mechanism of the top drive can greatly save manpower and realize automatic operation in drilling construction. . The top drive hydraulic system is an important part of the top drive drilling device. During the drilling construction, when the driller lifts the traveling block or lowers the traveling block, if the top drive ring is in a tilted state and the angle is too large, the extended ring will have It may hit the second floor platform or other equipment installed on the derrick, and even endanger personal safety. There...

Claims

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Application Information

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IPC IPC(8): E21B47/024
CPCE21B47/024
Inventor 孟晓东李联中朱长林蒋永军曹建周永红焦英明晨刘明星信思虎
Owner 王海峰