Low-temperature cementing slurry system and composition thereof
A cementing cement slurry and system technology, applied in the direction of drilling composition, chemical instruments and methods, etc., to achieve the effects of promoting low-temperature hydration rate, easy availability of raw materials, and reducing costs
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Embodiment 1
[0035] Example 1: Composition of Low Temperature Cementing Cement Slurry System
[0036] A low-temperature cementing cement slurry system can be composed of the following substances, and the mass parts of each substance are specifically: 100 parts of oil well cement, 125 parts of oil well ultrafine cement, 10.5 parts of nano-silica, and 24.6 parts of active calcium silicate Parts, 26 parts of hollow glass microspheres, 6.2 parts of early strength agent, 4.3 parts of fluid loss reducer, 1.36 parts of dispersant, and 165 parts of water.
Embodiment 2
[0037] Example 2: Slurry Performance Test of Low Temperature Cementing Slurry System
[0038] Taking the low-temperature cementing slurry system of Example 1 as the test object, firstly weigh and mix the solid dry ash component and the liquid water component of the low-temperature cementing slurry system for slurry preparation, and then mix them according to the standard GB / T19139 -2003 "Oil Well Cement Test Method" to prepare slurry, refer to the standard SY / T6544-2003 "Oil Well Cement Slurry Performance Requirements" to measure the mud's density, API water loss, rheological properties and other properties. The test results are shown in Table 1.
[0039] Table 1 Slurry performance of low temperature cementing slurry system
[0040]
Embodiment 3
[0041] Example 3: Compressive Strength Test of Low Temperature Cementing Cement Slurry System
[0042] Taking the low-temperature cementing slurry system of Example 1 as the test object, firstly weigh and mix the solid dry ash component and the liquid water component of the low-temperature cementing slurry system for slurry preparation, and then mix them according to the standard GB / T19139 -2003 "Oil well cement test method" to prepare the slurry, measure the compressive strength after curing for 24h and 48h respectively under 10MPa and different temperature conditions, and compare it with the compressive strength of oil well G grade cement slurry (water-cement ratio: 0.44) Compared. The test results are shown in Table 2.
[0043] Table 2 Compressive strength performance of low temperature cementing cement slurry system
[0044]
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