Temperature-resisting glass fiber manganese ore prepared oil well anti-water-seepage well cementation test block performance test
A technology of glass fiber and manganese ore is applied in the performance test of anti-seepage water cementing test blocks prepared from flexural glass fiber manganese ore. problems such as low compressive strength, to achieve the effect of enhanced flexural resistance, reduced permeability, and enhanced tensile strength
Inactive Publication Date: 2018-04-06
ZIBO VOCATIONAL INST
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Problems solved by technology
[0002] At present, in oil well cementing at home and abroad, cement slurry is used for high temperature and high pressure oil wells, but fly ash floating beads are used, the compressive strength is low, the rate of change of cement slurry density is large, and excessive water loss occurs after the cement slurry is statically solidified. 1. The shrinkage ratio of the test block is too large. In addition, the test block has poor toughness, tensile strength, flexural resistance, and impact resistance, and a large amount of water loss is reduced, resulting in leakage
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Embodiment 1
[0024] The performance test of the oil well anti-seepage water cementing test block prepared from temperature-resistant glass fiber manganese ore includes the following steps:
[0025] Step 1: Preparation of closed-cell hollow glass beads of manganese ore: First, the manganese ore is crushed into small particles of 1000µm by the jaw crusher, and then 60µm spherical particles are made through Raymond milling, and the spherical particles enter the cloth through the elevator Then enter the expansion furnace from the distributor, expand at 800°C, fire at 1200°C, and cool to form manganese ore closed-cell hollow glass beads with a wall thickness of 80µm and a particle size of 200µm.
[0026] The second step, the ingredients of the anti-seepage water cementing test block: 42wt% of G-grade oil well cement, 15wt% of ultra-fine cement, 26wt% of closed-cell hollow glass beads of manganese ore with a particle size of 200μm, and 1.1% of the loss on ignition powder Coal ash 7wt%, purity 99...
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Abstract
The invention provides a temperature-resisting glass fiber manganese ore prepared oil well anti-water-seepage well cementation test block performance test. The test includes the following steps that according to ingredients of an anti-water-seepage well cementation test block, 40-50 wt% of G-level oil well cement, 10-15 wt% of superfine cement, 25-35 wt% of manganese ore closed pore hollow glass beads with the particle size of 50-200 micrometers, 5-7 wt% of fly ash with the loss on ignition of 1.1%, 1.5-2 wt% of calcium oxide with the purity of 99.9%, 0.5-1.0 wt% of sodium sulfate, 1-5 wt% ofsilica powder and 1.0-2 wt% of alumina powder are sampled to obtain a mixed material, and the sum of weight percentages of the components is 100%, the mixed material is mixed with water by the water cement ratio of 0.5-0.7 to prepare slurry, a foaming agent accounting for 0.2-0.5% of the total weight of the mixed material is added and mixed, polyester fiber, graphite beads and expansion resin areadded by the ratio and stirred uniformly, and then an anti-water-seepage performance test is conducted.
Description
technical field [0001] The invention relates to performance testing of oil well anti-seepage water cementing test blocks prepared from anti-bending glass fiber manganese ore, belonging to the field of material technology. Background technique [0002] At present, in oil well cementing at home and abroad, cement slurry is used for high temperature and high pressure oil wells, but fly ash floating beads are used, the compressive strength is low, the rate of change of cement slurry density is large, and excessive water loss occurs after the cement slurry is statically solidified. 1. The shrinkage ratio of the test block is too large. In addition, the test block has poor toughness, tensile strength, flexural resistance, and impact resistance, and a large amount of water loss is reduced, resulting in leakage. Contents of the invention [0003] Using manganese ore material as a lightening agent, adding silicon powder and alumina powder, the performance of compression resistance,...
Claims
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IPC IPC(8): G01N33/38G01N1/38
Inventor 冯青
Owner ZIBO VOCATIONAL INST