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Device and method for simulation experiment of overall bending resistance of deep-water surface conduit delivery tool

A technology for simulating an experimental device and a feeding tool, which is applied in the field of an overall bending resistance simulation experimental device for a deep-water surface conduit feeding tool, which can solve problems such as failure to work properly, lack, and bending of the deep-water surface conduit feeding tool, so as to reduce the number of accidents. , the effect of improving safety

Active Publication Date: 2021-11-23
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the process of running in, installing and recovering, the running tool may be bent due to the force between sea waves, tides, conduits and other devices, and this phenomenon cannot be avoided
If the bending moment of the deep-water surface conduit running tool is too small to bear the load, it will cause severe deformation of the running tool, which may lead to a decrease in the working efficiency of the running tool and fail to complete the drilling task on time, or lead to the failure of the entire sending tool. Incoming tools are scrapped, resulting in huge economic losses
[0004] However, due to the lack of corresponding simulation devices for laboratory research, the force analysis and implementation of the bending performance of the deep-water surface conduit delivery tool that can withstand the bending moment generated by the lateral force cannot be effectively studied. The evaluation index and judgment basis of the overall bending resistance performance of the surface conduit running tool, so that the normal operation of the deep water surface conduit running tool cannot be guaranteed during the entire working process, let alone provide reasonable bending resistance for deep water conduit jetting parameters and other corresponding data, it is easy to cause severe bending of the deep-water surface conduit feeding tool in the actual production process, so that it cannot work normally

Method used

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  • Device and method for simulation experiment of overall bending resistance of deep-water surface conduit delivery tool
  • Device and method for simulation experiment of overall bending resistance of deep-water surface conduit delivery tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1 provides an overall bending resistance simulation experiment device for a deep-water surface conduit running tool, and its structure will be described in detail below.

[0028] refer to figure 1 , the overall bending resistance simulation experiment device of the deep-water surface conduit entry tool includes an experiment frame 1, a base 2, a deep-water surface conduit entry tool 4, a tension sensor 5, an adapter 6, a pressure sensor 7, a first motor 81, and a second motor 82. Multiple stress sensors, data collectors 10 and controllers 11,

[0029] The base 2 is a reinforced concrete structure base. The test frame 1 includes a horizontal beam and two supports supporting the two ends of the beam. The two supports are fixed on the base 2, and the bottom of the deep-water surface conduit feeding tool 4 is fixed on the base 2. , the adapter 6 is arranged on the top of the deep-water surface conduit sending tool 4, and the beam of the test frame 1 is horizonta...

specific Embodiment

[0034] A specific embodiment, start the first motor 81 to provide upward pulling force to the left end of the horizontal crossbeam of the test frame 1, start the second motor 82 to provide downward pressure to the right end of the horizontal crossbeam of the test frame 1, and impel the crossbeam of the test frame 1 to provide the deep water surface Catheter Running Tool 4 Bending Moment. The tension sensor 5, pressure sensor 7, adapter stress sensor 91, mandrel stress sensor 92, bushing stress sensor 93, and bottom bushing stress sensor 94 transmit the stress values ​​and bending deformation values ​​collected respectively to the data collector 10 and The controller 11 analyzes the weak points of the overall bending failure resistance of the deep-water surface conduit running tool 4 according to the stress value and the bending deformation value.

[0035] In the above embodiments, the data collector 10 is a data collection product with a USB interface, which can be connected w...

Embodiment 2

[0049] Embodiment 2 provides a kind of overall bending resistance simulation experiment method of deep water surface layer conduit feeding tool, adopts the overall bending resistance simulation experiment device of deep water surface layer conduit feeding tool provided in embodiment 1, and this overall bending resistance simulation experiment method comprises the following steps:

[0050] Step S1: start the first motor 81, and the first motor 81 provides an upward pulling force to one end of the crossbeam of the test frame 1;

[0051] Step S2: start the second motor 82, and the second motor 82 provides downward pressure on the other end of the crossbeam of the test frame 1;

[0052] Step S3: Under the joint action of the tension and pressure on the two ends of the crossbeam of the test frame 1, the crossbeam of the test frame 1 is formed to provide a bending moment for the deep-water surface conduit feeding tool 4, and the deep-water surface conduit feeding tool 4 is bent outwa...

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PUM

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Abstract

The invention discloses an overall bending resistance simulation experiment device and method for a deep-water surface conduit feeding tool. The device includes an experiment frame, a base, a deep-water surface conduit feeding tool, a tension sensor, an adapter, a pressure sensor, a first motor, Two motors, multiple stress sensors, data collectors and controllers. The overall tensile simulation experiment device and method of the deep-water surface conduit feeding tool provided by the present invention can simulate the overall bending and pulling performance of the feeding tool in the deep-water continuous drilling process through the motor, data collector and controller, and determine the feeding tool. The weak point of the overall bending resistance and the impact of this weak point on the operation of the deep water conduit provide a basis for the jet running of the deep water conduit, reduce the number of accidents during the jet running of the deep water conduit, and improve the safety, efficiency and accuracy of drilling.

Description

technical field [0001] The invention relates to the technical field of offshore oil and gas drilling, in particular to an overall bending resistance simulation experiment device and method for a deep-water surface conduit feeding tool. Background technique [0002] Deepwater drilling generally refers to drilling with a water depth of more than 900 meters offshore. In the offshore engineering oil and gas drilling industry, deepwater surface conduit feeding tools can greatly save the time of repeated replacement of drill pipes and other tools during underwater drilling, thereby To achieve the effect of reducing drilling risk and cost, the deep-water surface conduit running tool is the key tool to realize deep-water jetting. The running tool is assembled with the drill bit and other lower drilling tools to complete the installation. After being assembled with the low-pressure wellhead, surface conduit and mud pad , Lower the assembled tool assembly into the designated location ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 吴怡刘书杰杨进范白涛耿亚楠幸雪松焦金刚杨玉贵李舒展杨馥榕
Owner CHINA NAT OFFSHORE OIL CORP
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