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Deepwater surface conduit feeding tool function test experimental device and method

A technology for feeding tools and functional testing, which is applied in the field of offshore oil and gas drilling, can solve problems such as ineffective realization of functions, high cost of deepwater drilling, and restriction of drilling efficiency, so as to improve efficiency and reduce the number of accidents

Active Publication Date: 2020-06-26
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide an experimental device and method for testing the function of the deep-water surface conduit delivery tool, which can perform indoor experimental simulation and evaluation on the realization of the functions of the deep-water surface conduit delivery tool in the process of locking, running, release and recovery. , to solve the problem of restricting drilling efficiency and raising the cost of deepwater drilling due to the conservative approach taken because of fear that the function of the feeding tool cannot be effectively realized

Method used

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  • Deepwater surface conduit feeding tool function test experimental device and method
  • Deepwater surface conduit feeding tool function test experimental device and method

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Experimental program
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Effect test

Embodiment 1

[0040] Embodiment 1 provides an experimental device for testing the function of a deep-water surface conduit delivery tool, and its structure will be described in detail below.

[0041] refer to figure 1 , the deep-water surface conduit feeding tool function test experimental device includes an experiment frame 1, a base 2, a low-pressure wellhead head 3, a deep-water surface conduit feeding tool 4, an adapter 5, a drill pipe 6, a rotating motor 7, a telescopic cylinder 8, a control Device 9.

[0042] The base 2 is arranged at the bottom of the test frame 1, specifically, the base 2 is a reinforced concrete structure base. The low-pressure wellhead head 3 is fixed on the base 2 by fastening bolts.

[0043] The upper part of the low-pressure wellhead head 3 is a deep-water low-pressure wellhead head, which is provided with two bosses, and the lower part of the deep-water surface conduit feeding tool 4 is provided with two flanges. The flange on the lower part of the tool 4 i...

Embodiment 2

[0063] Embodiment 2 provides a kind of deep-water surface layer conduit sending tool function test experimental method, adopts the deep-water surface layer conduit sending tool function test experimental device provided in embodiment 1, this functional test experimental method comprises the locking of deep-water surface layer conduit sending tool 4 The locking reliability evaluation method thereof, the unlocking method of the deep-water surface conduit sending tool 4, the release method of the deep-water surface conduit sending tool 4, and the recovery method of the deep-water surface conduit sending tool 4, etc.

[0064] Wherein, the locking method of deep-water surface conduit sending tool 4 comprises the following steps:

[0065] Step S11: Select the power of the rotating motor 7;

[0066] Step S12: Set the rotation output force and the number of rotations of the rotary motor 7, and start the rotary motor 7;

[0067] Step S13: The rotary motor 7 drives the drill pipe 6 to ...

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Abstract

The invention discloses a deepwater surface layer guide pipe feeding tool function test experiment device and method. The device comprises an experiment frame, a base, a low-pressure well head, a deepwater surface layer guide pipe feeding tool, an adapter, a drill rod and a motor; the experimental method comprises a locking method and a reliability evaluation method of the deepwater surface layerguide pipe feeding tool, an unlocking method of the deepwater surface layer guide pipe feeding tool, a releasing method of the deepwater surface layer guide pipe feeding tool and a recycling method ofthe deepwater surface layer guide pipe feeding tool. According to the invention, the processes of locking, releasing, recovering and the like of a feeding tool during deepwater continuous drilling are simulated through a motor, a data collector, a controller and the like, and the indoor experiment evaluation is performed to study the safety and reliability degree of a feeding tool, so a basis isprovided for deep-water guide pipe injection feeding, the accident number in the deep-water guide pipe injection feeding process is reduced, and high efficiency, accuracy and economy of deep-water drilling are improved.

Description

technical field [0001] The invention relates to the technical field of offshore oil and gas drilling, in particular to an experimental device and method for testing the function of 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 in the sea. During deepwater drilling, because the shallow undiagenetic strata on the surface of deepwater drilling are not strong enough, they are prone to collapse. The first layer of casing, which provides structural support for all subsequent casings and wellhead equipment, is the "throat" of deepwater drilling. [0003] The deep water surface conduit jetting running technology is a key link in the construction of deep water drilling projects. This technology can realize continuous drilling through multiple steps such as "first opening" drilling, conduit running, and "second opening" wellbore drilling. Drilling and feeding, greatly...

Claims

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Application Information

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IPC IPC(8): G01M99/00
CPCG01M99/008
Inventor 刘书杰吴怡杨进范白涛焦金刚谢仁军杨玉贵李舒展耿亚楠幸雪松贺馨悦王麦伦
Owner CHINA NAT OFFSHORE OIL CORP
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