Switchable rock debris distribution box

A diverter box and switching technology, applied in wellbore/well components, earthwork drilling, etc., can solve the problems of easy accumulation or blockage, and achieve the effects of easy operation, lower construction costs, and reduced process switching time.

Active Publication Date: 2018-04-03
CHINA NAT OFFSHORE OIL CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the technical problem that cuttings of marine module drilling rigs are easy to form accumulation or blockage in the discharge pipeline, and provide a switchable cuttings diversion box, which uses the internal switching of the box instead of the s...

Method used

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  • Switchable rock debris distribution box
  • Switchable rock debris distribution box
  • Switchable rock debris distribution box

Examples

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Embodiment Construction

[0018] In order to further understand the content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0019] Such as Figure 1 to Figure 3 As shown, this embodiment provides a switchable cuttings diversion box, including a diversion box body 1, a 14" sea discharge port 2, a liquid discharge port 3, a 14" collection port 4, a support rod 6, and a fixed baffle 7 , rotating baffle plate 8, hinge 5, cuttings are transported to the switchable cuttings splitter box by cuttings discharge main pipe 9 and cuttings discharge branch pipe 10, and the outlet of cuttings discharge main pipe 9 is positioned at the top of the splitter box casing 1.

[0020] The splitter box body 1 is a box-type structure with an upper opening surrounded by a front wall, a rear wall, a left wall, a right wall and a bottom plate, wherein the front wall, the rear wall, the left wall, and...

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Abstract

The invention belongs to the technical field of marine module drill drilling, and discloses a switchable rock debris distribution box. The switchable rock debris distribution box includes a distribution box body with an upper opening, and the distribution box body is located below a rock debris discharging main pipe; a bottom plate of the distribution box body is formed by a horizontal plane and inclined faces, wherein the horizontal plane is located at the middle, and the inclined faces are located at the two sides, a sea discharging port and a collection port are formed in the inclined facesof the bottom plate of the distribution box body, and a liquid discharging port is formed in horizontal plate of the bottom plate of the distribution box body; a fixed baffle is arranged on the portion, at one side the sea discharging port, of the interior of the distribution box body and is used for leading rock debris into the sea discharging port; a rotary baffle is arranged at the portion, atone side the collection port, of the interior of the distribution box body and is used for switching and leading the rock debris into the collection port. According to the switchable rock debris distribution box, box interior switching is adopted to replace valve switching, therefore, the construction cost is reduced, the defects are overcome that because a valve is not closed tightly, the rock debris with oil is discharged into sea and then pollutes environment, and the switchable rock debris distribution box has the advantages of being simple in structure, various in function, good in economical efficiency and high in practicability.

Description

technical field [0001] The invention belongs to the technical field of offshore module drilling rig drilling, and in particular relates to a cuttings discharge device. Background technique [0002] A large amount of cuttings will be produced during the drilling operation of the offshore module drilling rig. Since the discharge mainly depends on gravity, the cuttings are easy to form accumulation or blockage in the discharge pipeline. The pipeline for conveying the cuttings needs to be set with a large slope. Flush and unclog. [0003] Based on environmental protection requirements, two processes are usually set up for cuttings discharge, sea discharge and recycling. The cuttings discharge of offshore module drilling rigs is basically composed of 14”pipes, tee fittings, valves and other components to complete the purpose of cuttings discharge. Two processes need to be set up. The valve controls the switching of the two processes. Due to the large size and weight of the two v...

Claims

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Application Information

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IPC IPC(8): E21B41/00
CPCE21B41/005
Inventor 张发马超刘富强王涛胡小娟杜志胜张磊杨洋姚方彬寇建慧郭嘉宁俞博瀚
Owner CHINA NAT OFFSHORE OIL CORP
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