CN1305070A

CN1305070A - Oil delivering pipe

Info

Publication number: CN1305070A
Application number: CN 00130708
Authority: CN
Inventors: 赵万荣
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-11-24
Filing date: 2000-10-10
Publication date: 2001-07-25

Abstract

An oil delivery pipe for sea features that its pipe body has "spiral air tube body" in the shape of solenoid, which can be used to regulate the air amount in it to control the float level of oil delivery pipe in sea. Its advantages are less damage from sea waves, delaying natural egeing, less collection of marine biota, long service life, and preventing leakage.

Description

Oil delivering pipe

The invention relates to the invention of transport pipe.Specifically relate to a kind of utilization is provided with spiral tracheae body on body transport pipe, it has conventional purposes, especially does offshore oil delivery and floats when managing more apparent its distinct advantages.

As the floating pipe of oil transportation that use in the offshore oil field, existing floating pipe all adopts the integrally curing formula to decide the buoyancy flotation technique, and the floating pipe of every joint has transport pipe, the outer between filling foamed plastics of protection buoyancy aid or buoyancy aid and the flange of sponge.By flange the floating pipe of tens of joints is linked to be a petroleum pipeline during use.Though some producer has also done some improvement at the selection material with aspect gaining in strength now, the user has also adopted some supplementary equipment to place floating pipeline, and make it break away from the sea and avoid losing of wave, yet, because the basic structure of body and material is similar, makes it remain many shortcomings.At first,, just can only float on the sea, be subjected to the folding of wave to bend infringement for a long time, also quicken the natural aging process, impel shorten its working life in case come into operation because its buoyancy can't change.Sometimes go down because of buoyancy or floating individually pipe damages, the floating pipeline of whole piece is sunk after then the buoyancy layer be subjected to factors disrupt such as seawater pressure and scrap.When especially big stormy waves arrives, have to drag it away from scene, also want labor intensive, material resources and time for this reason.Sometimes body rolled over flat after, scrap because of not resiling.Especially the leakage of oil problem that causes of its damage of occurring when oil transportation pollutes to ocean environment easily.

At present the general transport pipe of producing of heavy caliber all is provided with steel spring and is used to support tube wall and improves compressive strength in tube wall, but have folding, shrivel after not resilient and scrap and weight big, transportation, store shortcoming such as inconvenience.

The purpose of this invention is to provide a kind of novel transport pipe, especially floating pipe has exclusive characteristic when being used as the floating pipe of offshore oil delivery, when making when diving floating transport pipe, manifested practicability of the present invention, and operating method and existing floating pipe are basic identical, and have remedied the above-mentioned deficiency of existing floating pipe.

The present invention has transport pipe and spiral tracheae buoyancy aid, makes the floating Guan Shike of oil transportation and changes the tolerance of spiral tracheae buoyancy aid and set up surface floating body, it is characterized in that being provided with on the body of transport pipe the solenoid shape air cavity, is called for short " spiral tracheae body " and makes buoyancy aid.Can also be with the expansive force of above-mentioned spiral tracheae body support force as the oil transportation body, to replace the support force of steel spring, it can substitute steel spring when making heavy caliber universal fluid delivery pipe, utilize its inflatable compression properties that the oil transportation body of being pressed, selling off shape is carried out automatic school circle and extruding leakproof, therefore spiral tracheae body has buoyancy aid, the multiple function of leakage proof and support tube wall.And can be combined into integral body with oil pipe, spiral tracheae body wall is provided with the air control valve of can regulate tolerance.When the other end that drag-line and drag-line are set on flange connects buoyancy aid, can be made into the latent floating petroleum pipeline of depthkeeping, can set up spring buffer on the drag-line, the fluctuation of the floating pipeline of diving is reduced, thereby the collapsing force of wave is alleviated.

Owing to adopted such scheme, the buoyancy of transport pipe can be regulated, make floating route of pipe line come-up or sink or with the floating degree of depth of diving of surface floating body and drag-line control pipeline, thereby with the destruction of avoiding stormy waves with slow down natural aging speed and reduce the marine growth accumulation and prolonged working life.Because floating body material has not been sponge, so can not be subjected to the destruction of seawater pressure under water when placing.The inflatable extruding force of this novel spiral tracheae body, to the oil transportation body have the sealing leak stopping effect, and make its weight saving, be convenient to the maintenance.

The present invention is further described below by embodiment.

This oil delivering pipe is made body with plastic material, make the software sealed pipe with same material, this pipe is coiled into the spiral tracheae body of cylindrical hollow, solenoid shape, again spiral tracheae body is enclosed within on the oil transportation body or is wound directly around and make the solenoid shape air cavity in the oil transportation body and combine with the oil transportation body and make floating pipe with the software sealed pipe.Gas charging valve is set on spiral tracheae body wall or can connects the gas charging valve of tracheae, when being provided with the control tracheae this valve the other end with control tracheae and be communicated with, regulate the buoyancy of petroleum pipeline.The steel spring that supports tube wall in the transport pipe can substitute with spiral tracheae body, has spring performance after this buoyancy aid inflation, can support the oil transportation tube wall has the effect of buoyancy aid again, can avoid pressing, losing ring, also has the effect of inflatable extruding leakproof and automatic school circle distortion body.

Another program is to set up the floating petroleum pipeline of diving that surface floating body makes, and the buoyancy of the floating pipe of the oil transportation of this moment is arranged to fixed buoyancy and is lower than zero boundary's come-up buoyancy, transport pipe can be sunk but sinking weight is less, and the required volume of surface floating body is less like this.Its scheme is, is included in suspension depthkeeping drag-line is set on the flange, and the other end of drag-line is with spring buffer or directly be connected with surface floating body.When being linked to be a petroleum pipeline, some split buoyancy aids are by the floating degree of depth of diving of depthkeeping drag-line control pipeline, and the buoyancy of buoyancy aid is located at and should be able to satisfies the latent floating buoyancy limit of pipeline safety.When single buoyancy aid is held up by the wave crest, only be the little buoyancy of monomer, and the floating sinking gravity of diving of oil pipe is the overall weight of pipeline, the resistance of seawater when when the pipeline local pressure upwards draws, except that overall weight, also being subjected to reversing motion, therefore the less buoyancy aid of buoyancy is drawn in the water, when being in trough, heavily bubble through the water column again owing to losing drop-down gravity, by that analogy, the fluctuating range of floating pipeline of diving reduces, further alleviating the moving method of floating tube wave is, on the depthkeeping drag-line, set up spring buffer, cushion the fluctuation dynamics less than buoyancy aid buoyancy, make the amplitude of the fluctuation amplitude of the floating pipeline of diving much smaller than wave, the destruction dynamics that makes it wave alleviates.

Energy make-up gas restorability remains unchanged the combination property of floating pipe when the support force of tired seepage in flange connecting part or spiral tracheae body descends.

Inflation and exhaust in the new floating body are controlled by air control valve, comprise that the air cavity between each pipe fitting is communicated with tracheae respectively, by automatically controlled or two tracheae gas controls the air between each cavity is not ganged up mutually by tracheae inflation and exhaust.

When using, oil delivering pipe connects into a pipeline road by manifold spare.Link can be flange or use the plug-in type rendezvous method, and splicing position is fixed with hoop shape fastener, and the lap of its splicing position has the characteristics of the leakproof of being extruded.When making marine purposes and adopting the method for plant propagation with cutting such as needs increase tensile strength, can adopt auxiliary wirerope.

In sum, oil delivering pipe is used for the sea when making the floating pipe of oil transportation, the floating oil transportation of can diving, deposits in and avoids under water that wave destroys, reduces open-air natural aging and marine growth is built up, the extruding leakproof, the body inflatable is supported and characteristics such as automatic school circle; When with the steel spring in the alternative body of spiral tracheae body, this transport pipe also has folding-proof bend, and lightweight advantage is to the seepage that prevents and cause when reducing offshore oil delivery, there is the ocean environment of minimizing to avoid the oil pollution effect, can also reduces the synthetic operation cost of marine petroleum exploitation.

Claims

1. oil delivering pipe that can be used for conveyance fluid, form by the spiral tracheae body of software transport pipe, variable tolerance and flange etc., it is characterized in that buoyancy aid is to be enclosed within on the oil transportation body with the solenoid shape air cavity that software sealed pipe coiling is prefabricated into cylindrical hollow to make, can also be the software sealed pipe to be coiled in make the solenoid shape air cavity in the oil transportation tube wall, on its software sealed tube wall air control valve is housed, this transport pipe has the characteristic of the floating pipe of oil transportation.

2. when transport pipe as claimed in claim 1 is used for purposes waterborne, it is characterized in that the other end that depthkeeping drag-line and drag-line are set is connected with floatage body on flange, spring buffer can also be set on drag-line to reduce wave effect.

3. oil delivering pipe that can be used for conveyance fluid, form by the spiral tracheae body of software transport pipe, variable tolerance and flange etc., it is characterized in that substituting the steel spring that supports tube wall with solenoid shape tracheae body, the characteristic that spring is arranged after the inflation of this tracheae body can be avoided pressing, lose ring, also have a purposes of automatic school pipe body.

4. oil delivering pipe that can be used for conveyance fluid, by the software transport pipe, compositions such as the spiral tracheae body of variable tolerance and flange, the making method of this transport pipe, it is characterized in that making the software sealed pipe with plastic material, the software sealed pipe is coiled into the spiral tracheae body of the solenoid shape of cylindrical hollow, again spiral tracheae body is enclosed within on the oil transportation body or is wound directly around and be similar to spiral tracheae body in the oil transportation body and be integrated with oil pipe with the software sealed pipe, on the software sealed tube wall, air control valve is installed, is charged into the making method that characteristic that a certain amount of gas rear screw tracheae body presents spring has the oil delivering pipe of buoyancy aid performance again.