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Screw drill stator made using ECTFE and modified ECTFE applied to the stator

A screw drilling tool and stator technology, applied in the field of ECTFE, can solve the problems of affecting drilling efficiency and development progress, increasing drilling costs, and high maintenance requirements, and achieve the effect of reducing processing costs, reducing maintenance costs, and simple processing technology

Inactive Publication Date: 2015-05-13
ZHEJIANG GREEN NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Short service life and high maintenance requirements affect the efficiency and progress of drilling work and increase drilling costs

Method used

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  • Screw drill stator made using ECTFE and modified ECTFE applied to the stator
  • Screw drill stator made using ECTFE and modified ECTFE applied to the stator
  • Screw drill stator made using ECTFE and modified ECTFE applied to the stator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The components of this embodiment (in parts by weight) consist of: 100 parts of ECTFE, 3 parts of graphene fragment material, and 5 parts of carbon-skeleton porous nickel.

[0048] During production, ECTFE, carbon fiber nanotubes, and football ene C540 are uniformly mixed by a high-speed kneader, and then formed by extrusion, injection molding, or molding to obtain one of the application structures such as Figure 1-3 shown.

[0049] The product of this embodiment has been sampled and tested, and the results are as follows. The downhole stable use time is 300 hours, and the long-term use temperature is greater than 150 degrees.

Embodiment 2

[0051] The components of this embodiment (in parts by weight) consist of: 100 parts of ECTFE, 4 parts of graphene fragment material, and 10 parts of carbon-skeleton porous nickel.

[0052] During production, ECTFE, carbon fiber nanotubes, and football ene C540 are uniformly mixed by a high-speed kneader, and then formed by extrusion, injection molding, or molding to obtain one of the application structures such as Figure 1-3 shown.

[0053] The product of this embodiment has been sampled and tested, and the results are as follows. The downhole stable use time is 400 hours, and the long-term use temperature is greater than 170 degrees.

Embodiment 3

[0055] The components of this embodiment (in parts by weight) consist of: 100 parts of ECTFE, 5 parts of graphene fragment material, and 8 parts of carbon-skeleton porous nickel.

[0056] During production, ECTFE, carbon fiber nanotubes, and football ene C540 are uniformly mixed by a high-speed kneader, and then formed by extrusion, injection molding, or molding to obtain one of the application structures such as Figure 1-3 shown.

[0057] The product of this embodiment has been sampled and tested, and the results are as follows. The downhole stable use time is 640 hours, and the long-term use temperature is greater than 190 degrees.

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Abstract

The present invention discloses a screw drill stator made using ECTFE. From the outer to the inner, the stator sequentially mainly comprises a stator metal outer tube, a polymeric layer, the polymeric layer is made from ECTFE and modified ECTFE materials applied to the stator. The screw drill stator made using ECTFE largely improves the high temperature resistance and abrasion resistance of the stator, is easy to use, has a low wear rate, effectively extends the service life of equipment, has good adaptability to bad surroundings, has low maintenance difficulty, effectively improves the efficiency of drilling operation, and largely reduces the operation costs.

Description

technical field [0001] The invention relates to heat-resistant, wear-resistant, corrosion-resistant and highly processable ECTFE and its application on screw drilling tools, in particular to a screw drilling tool stator made of ECTFE and modified ECTFE applied to the stator. Background technique [0002] PDM drill, also known as screw drill, is a volumetric downhole dynamic drilling tool that uses drilling fluid as power and converts fluid pressure energy into mechanical energy. When the mud pumped by the mud pump flows through the bypass valve and enters the motor, a certain pressure difference is formed at the inlet and outlet of the motor, which pushes the rotor to rotate around the axis of the stator, and transmits the speed and torque to the drill bit through the cardan shaft and the transmission shaft , so as to realize the drilling operation. [0003] The screw drill was first used to make vertical holes, mainly used to make various directional holes and special en...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08K3/04C08K9/12C08K3/08
CPCC08K9/00C08K3/04C08K7/06C08K9/02C08K2201/003C08L2201/08E21B4/02
Inventor 徐洪颜华红景亚宾谢根发
Owner ZHEJIANG GREEN NEW MATERIALS
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