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Intelligent composite material continuous pipe

A technology of composite materials and coiled tubing, applied in the direction of drill pipe, casing, drilling equipment, etc., can solve the problems of unbearable fatigue resistance, poor corrosion resistance, large power consumption, etc., and achieve low operating cost, good mechanical properties, The effect of increasing oil well production

Inactive Publication Date: 2015-04-29
CHINA PETROCHEMICAL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that metal coiled tubing itself is too heavy to withstand fatigue resistance, and at the same time, non-effective work such as gravity and friction will consume a large amount of electric energy, and its corrosion resistance is poor and its service life is short. Lightweight, intelligent, long life and good mechanical properties intelligent composite coiled tube

Method used

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  • Intelligent composite material continuous pipe
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Experimental program
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Effect test

Embodiment 1

[0015] Refer to attached figure 1 , the intelligent composite continuous pipe of the present invention comprises an inner pipe pressure-bearing sealing layer 1, a resin fiber reinforced layer 2, an outer protective layer 3, a power cord 4 and an optical fiber data line 5, an inner pipe pressure-bearing sealing layer 1, a resin fiber reinforced The layer 2 and the outer protective layer 3 are the whole coiled tubing, the power cord 4 and the optical fiber data cable 5 are the whole cord, and the inner tube pressure sealing layer 1 is wound and braided with a resin fiber reinforced layer 2, and the resin fiber reinforced layer 2 is covered with an outer protection layer 3 , a power line 4 is embedded in the outer protection layer 3 , and an optical fiber data line 5 is embedded in the outer protection layer 3 . The pressure-bearing sealing layer 1 of the inner tube is made of PVDF or cross-linked polyethylene, which has the characteristics of anti-oil acid-base corrosion, the re...

Embodiment 2

[0020] Refer to attached figure 2 , the difference from the first embodiment is: the optical fiber data line 5 of the intelligent composite material coiled tube is embedded in the pressure-bearing sealing layer 1 of the internal inner tube; the optical fiber data line 5 is a single-mode optical fiber data line, and the intelligent composite material continuous The pipe is lowered into the bottom hole assembly of the drill bit. The bottom hole assembly includes temperature and pressure sensors and a measurement-while-drilling system that can measure well deviation and azimuth.

[0021] One end of the single-mode optical fiber data cable is connected to a downhole temperature sensor, pressure sensor, MWD (wireless measurement while drilling) tool or LWD (wireless logging while drilling) tool, and the other end is connected to a ground receiver to obtain real-time downhole temperature, pressure, Formation gamma resistivity information.

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Abstract

The invention relates to an intelligent composite material continuous pipe for petroleum drilling and production, in particular to an intelligent composite material continuous pipe, which is used for intelligent petroleum drilling and production, electric energy transmitting, parameter measuring and real-time monitoring. The intelligent composite material continuous pipe comprises an inner pipe pressure sealing layer, a resin fiber reinforcing layer, an outer protecting layer, a power source line and an optical fiber data line, wherein the inner pipe pressure sealing layer, the resin fiber reinforcing layer and the outer protecting layer respectively adopt a whole continuous oil pipe, the power source line and the optical fiber data line respectively adopt a whole line, the resin fiber reinforcing layer is wound at the exterior of the inner pipe pressure sealing layer, the outer protecting layer coats the exterior of the resin fiber reinforcing layer, the power source line is embedded in the outer protecting layer, and the optical fiber data line is embedded in the outer protecting layer. The intelligent composite material continuous pipe has the beneficial effects that the operation cost is low, the productivity of an oil well is increased, an oil layer is protected, the safety operation and directional operation are convenient, the mechanical property is good, the intelligence effect is realized, the drilling and production advantages of deep wells and offshore platforms are more obvious, and the operation is simpler and more convenient.

Description

technical field [0001] The invention relates to an intelligent composite coiled tube in the field of pipe materials, in particular to an intelligent composite coiled tube that can realize intelligent oil drilling, electric energy transmission, measurement of various parameters and real-time monitoring. Background technique [0002] Coiled tubing technology and equipment are widely used in various fields such as drilling, well completion, well testing, oil (gas), workover, and gathering and transportation, and coiled tubing is the key equipment in this drilling and production technology. The American Fiberspar Company, the American Hydril Company and the Norwegian NAT Compipe Company are currently the three most important composite coiled tubing manufacturers in the world. The composite material coiled tubing produced by them has been used in drilling, downhole operations and pipelines of many large oil and gas companies. and other fields, the cumulative length exceeds 300 km...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/00
CPCE21B17/00
Inventor 安庆宝夏小军尹文波吴致力王新峰冯国竟曲刚曾飞舟高煜李亚伟
Owner CHINA PETROCHEMICAL CORP
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