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Introduction and application of drilling hose

Nov. 14, 2018

Introduction

Rotary Drilling Hose is a customary term for “rotary drilling and damping rubber hoses” and is also used to refer to “drilling equipment hoses” and “water hoses”.

In geological and petroleum rotary drilling, large volumes of fluid slurry are required to be delivered to the drill bit by high pressure, and a rotary drill hose and hose assembly is used as a flexible joint in the mud transfer line. A rotary drilling hose is used between the top end of the riser and the rotating section running up and down. Marine mud transfer hoses are used for high pressure mud transfer between barges and offshore drilling platforms, typically longer than 13.5 meters. The shock absorber hose is short (9 m or less) and is used between the pump and the rig, the riser manifold, to accommodate different shafting and to isolate vibration.

Drill the hose structure. The inner lining layer consisting of inner rubber layer, inner rubber protective layer, middle rubber layer, steel wire winding layer and outer rubber layer should be composed of oil resistant and water resistant rubber. The hose reinforced layer should be composed of textile and steel wire (rope) material. The outer cover of the hose shall be constructed of oil-resistant, wear-resistant and weather-resistant rubber. The surface shall have a colored strip along its length for installation with the hose.

Drilling hose application:

The drilling hose is usually used between the pump and the drilling rig, and can function to isolate the vibration. The drilling hose consists of an inner rubber layer, an inner rubber protective layer, an outer rubber layer and a steel wire wound layer. It includes a hose inner liner, a hose reinforcement and a hose overlay. The constituent materials are also different. There is a drilling hose that uses a wire-wound drilling hose for oil media drilling, workover, small drilling, conveying mud, and the like. Hose can be divided into wire-reinforced and steel chain-reinforced, and its implementation standards are APT Spec 7k, SY / T 5469-92. Drilling hoses are usually transported in large quantities from water-based or oil-based muds pumped from rotary drilling equipment with a minimum aniline point of 66 degrees Celsius under high pressure conditions, and the drilling hoses are also resistant to hydrogen sulfide and can transport water and oil. The mud medium is in the oil well. Drilling hoses are often used as flexible hoses in oil drilling, mud conveying systems, between the top of the drilling riser and the vertically movable faucet.


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