Fiber composite sand control material and preparation method thereof

A fiber composite and sand control technology, applied in chemical instruments and methods, drilling compositions, etc., can solve the problems of intensified sand production, serious sand production, intensified water production, etc., so as to reduce the permeability of water phase and increase the permeability of gas phase. , the effect of reducing water production

Active Publication Date: 2012-10-31
PETROCHINA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the development of gas reservoirs, the pressure of gas reservoirs decreases. The development of such water-bearing gas layers such as the Sebei Gas Field will increase water production and sand production. The use of conventional fiber composite sand control technology without screens will lead to increased water production after sand control operations. Intensified sand, poor sand control effect

Method used

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  • Fiber composite sand control material and preparation method thereof
  • Fiber composite sand control material and preparation method thereof
  • Fiber composite sand control material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Select 5g of ceramic fibers with a length of 4mm and a diameter of 15um, and add 0.05g of linear methyl hydrogen polysiloxane to make the fibers wet evenly;

[0026] Coating material preparation, mix 25g of modified phenolic resin, 1.25g of linear methyl hydrogen polysiloxane and 0.05g of silicone coupling agent under stirring condition;

[0027] Select 500g of 40-60 mesh Lanzhou quartz sand, wash and air-dry, heat the quartz sand to 60°C, add the coating material mixture (resin, coupling agent and water inhibiting material) under the condition of stirring, and stir to form a uniform mixture . Under the condition of 20°C-30°C, when it is air-dried until it does not stick to each other, add the fiber that has been treated with water suppression, continue to stir evenly, and air-dry thoroughly, and the fiber composite sand control material is prepared.

Embodiment 2

[0029] Select 5g of ceramic fibers with a length of 6mm and a diameter of 20um, and add 0.075g of linear methylhydrogenpolysiloxane to make the fibers wet evenly;

[0030] Coating material preparation, mix 37.5g modified phenolic resin, 3.75g linear methyl hydrogen polysiloxane and 0.3g silicone coupling agent under stirring condition;

[0031] Select 500g of 40-60 mesh Yixing ceramsite, wash and air-dry, heat the ceramsite to 60°C, add the coating material mixture (resin, coupling agent and water inhibiting material) under the condition of stirring, and stir to form a uniform mixture . Under the condition of 20°C-30°C, when it is air-dried until it does not stick to each other, add the fiber that has been treated with water suppression, continue to stir evenly, and air-dry thoroughly, and the fiber composite sand control material is prepared.

Embodiment 3

[0033] Select 5g of ceramic fibers with a length of 8mm and a diameter of 20um, and add 0.1g of linear methyl hydrogen polysiloxane to make the fibers wet evenly;

[0034] Coating material preparation, mix 50g of modified phenolic resin, 7.5g of linear methylhydrogen polysiloxane and 0.75g of silicone coupling agent under stirring condition;

[0035] Select 500g of 40-60 mesh Lanzhou quartz sand, wash and air-dry, heat the quartz sand to 60°C, add the coating material mixture (resin, coupling agent and water inhibiting material) under the condition of stirring, and stir to form a uniform mixture . Under the condition of 20°C-30°C, when it is air-dried until it does not stick to each other, add the fiber that has been treated with water suppression, continue to stir evenly, and air-dry thoroughly, and the fiber composite sand control material is prepared.

[0036] The gas phase permeability and water phase permeability of the resin-coated quartz sand and resin-coated ceramsite...

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Abstract

The invention belongs to the technical field of sand control during extraction of petroleum and natural gas and particularly relates to a fiber composite sand control material and a preparation method thereof. The fiber composite sand control material comprises a propping agent, a coating on the surface of the propping agent and fiber, wherein the coating comprises a resin and a water suppressionmaterial; the mass of the fiber is 1 to 5 percent that of the propping agent; the mass of the resin is 3 to 10 percent that of the propping agent; and the mass of the water suppression material is 5 to 15 percent that of the resin. On the basis of ensuring bonding capacity, the material has the advantages of increasing gas-phase permeability, decreasing water-phase permeability, reaching the samegas saturation condition, capability of extracting more gas and suppressing and reducing water yield. Due to the existence of the fiber, the bonding capacity of the resin is improved, so that the resin can still achieve a pulling effect after resin bonding fails, the intensity of a compound is ensured and good long-term sand control effect is achieved.

Description

technical field [0001] The invention belongs to the technical field of sand control in petroleum and natural gas exploitation, and in particular relates to a fiber composite sand control material and a preparation method thereof. Background technique [0002] Sand control is a technological measure to control sand production in the development process of loosely cemented oil and gas reservoirs. The Sebei gas field reservoir in the Qaidam Basin, Qinghai is mainly composed of Quaternary siltstone and argillaceous siltstone, which are undercompacted, poor in diagenesis, and loosely cemented, and have three highs (high clay, high shale, and high salinity)—— Strong (strong sensitivity), severe sanding and other characteristics. The sand produced is fine silt (with a particle size of 0.04-0.07mm), and sand control is extremely difficult. The fiber composite sand control technology that has been researched can achieve good results for gas fields with high gas saturation and large...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/56C04B14/38C04B14/42
Inventor 周福建刘玉章杨贤友熊春明张启汗吕述奇石阳刘雄飞李向东连胜江
Owner PETROCHINA CO LTD
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