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Screw drilling tool stator manufactured by using FEP and modified FEP applied to stator

A screw drilling tool and stator technology, which is used in rotary piston/swing piston pump components, liquid fuel engines, mechanical equipment, etc., can solve problems affecting drilling efficiency and development progress, increasing drilling costs, and high maintenance requirements. problem, to achieve the effect of good wear resistance, reduced maintenance costs, and simple processing technology

Active Publication Date: 2015-05-06
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 drilling tool stator manufactured by using FEP and modified FEP applied to stator
  • Screw drilling tool stator manufactured by using FEP and modified FEP applied to stator
  • Screw drilling tool stator manufactured by using FEP and modified FEP applied to 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 FEP; 24 parts of wear-resistant enhancer, the wear-resistant enhancer is carbon black, and the particle size of carbon black is 26-30 nm, and the specific surface area is 80-30 nm. 110m 2 / g, the oxygen content is 0.5%~1.0%, the hydrogen content is 0.27%~0.34%; the reinforcing filler is 15 parts of glass microspheres with a particle size of 30-50 microns.

[0048] During production, FEP, wear-resistant enhancer, and reinforcing filler are mixed uniformly by a high-speed kneader, and then formed by extrusion, injection molding, etc. 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 200 degrees.

Embodiment 2

[0051] The components of this embodiment (in parts by weight) consist of: 100 parts of FEP; 20 parts of wear-resistant enhancer, which is carbon black, and the particle size of carbon black is 26-30 nm, and the specific surface area is 80-30 nm. 110m 2 / g, oxygen content 0.5%~1.0%, hydrogen content 0.27%~0.34%; the reinforcing filler is 17 parts of glass microspheres with a particle size of 30-50 microns;

[0052] During production, FEP, wear-resistant enhancer, and reinforcing filler are mixed uniformly by a high-speed kneader, and then formed by extrusion, injection molding, etc. 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 200 degrees.

Embodiment 3

[0055] The components of this embodiment (in parts by weight) consist of: 100 parts of FEP; 29 parts of wear-resistant enhancer, the wear-resistant enhancer is carbon black, and the particle size of carbon black is 26-30 nm, and the specific surface area is 80-30 nm. 110m 2 / g, oxygen content 0.5%~1.0%, hydrogen content 0.27%~0.34%; reinforcing filler is 20 parts of glass microspheres with a particle size of 30-50 microns.

[0056] During production, FEP, wear-resistant enhancer, and reinforcing filler are mixed uniformly by a high-speed kneader, and then formed by extrusion, injection molding, etc. 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 200 degrees.

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Abstract

The invention discloses a screw drilling tool stator manufactured by using FEP and modified FEP applied to the stator; the screw drilling tool stator mainly comprises a stator metal outer tube and a polymer layer from outside to inside successively, wherein the polymer layer is made of the FEP, and the modified FEP material is applied to the stator. The FEP is adopted for manufacturing the screw drilling tool stator, high-temperature resistance and abrasion resistance of the stator are greatly improved, the service life of a device is effectively extended, the adaptability to a harsh environment is good, the maintenance difficulty is low, the drilling operating efficiency is effectively improved, and the operating cost is significantly reduced.

Description

technical field [0001] The invention relates to a heat-resistant, wear-resistant, corrosion-resistant, and highly processable FEP and its application on a screw drilling tool, in particular to a screw drilling stator made of FEP and a modified FEP 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 enginee...

Claims

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Application Information

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IPC IPC(8): F04C15/00F04C2/10C08L27/18C08K7/28C08K3/04
Inventor 徐洪颜华红陈超景亚宾
Owner ZHEJIANG GREEN NEW MATERIALS
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