Pressure proppant (ceramic) Breakage Detection Factors

In product quality testing work, oilfield  frac proppant  ceramic) crushing rate indicators are key technical indicators. In accordance with the standards for testing the oil industry, the degree of fracturing proppant and wet crushing hardness test tube breakage of these indicators on the influential factors are often ignored. Testing personnel through a lot of comparative tests proved wet proppant crushing test tube and the degree of hardness on fracturing proppant (ceramic) Broken rate indicators have a certain influence, when the edge detection data in the data, these factors result of product quality play a key role in the decision. Therefore, this paper through the wet  Proppant  crushing test tube and the degree of hardness for fracturing proppant (ceramic) Broken rate indices of experimental research, product quality inspection personnel on some inspiration and help. fracturing proppant  (ceramic) in water wettability test under the conditions of this experiment fragmentation rate comparison test sample under water wet crushing rate changes. (A) the first experimental samples were detected by normal breakage. (2) The test samples thoroughly wetted with tap water, and filtered water (so far as not to drip) of the sample into the test tube for crushing tests. (3) the experimental samples were adequately wetted with tap water and then filtered water (so far as not to drip) Place the sample in drying oven at 105 ℃.

4h after drying the sample into test tube for crushing tests. (4) water wetting time were: 6h, 24h, 48h. Fracturing proppant (ceramic) in water wet conditions fragmentation rate on the test data than shown in Figure 1. As can be seen from Figure 1, proppant (ceramic) in water under wet conditions increase the fragmentation rate is large, the test sample, its fragmentation rate to more than 2 times the normal samples. However, wetted with water after the fracturing proppant (ceramic), after drying, the fragmentation rate have significantly reduced, but not down to the normal level of the sample.  ceramic proppant  Broken rate under wet conditions of this experiment test test samples for comparison in wet conditions fragmentation rate changes.  fracturing proppant  (ceramic) in wet conditions breakage experimental test of this experiment comparing samples in wet environmental conditions crushing rate changes, (a) the first experimental samples were detected by normal breakage. (2) the test sample in a damp environment, 24h, then the samples were placed in test tank for crushing tests. (3) The test sample is placed in a damp environment 24h, then the sample into a drying oven at 105 ℃ for 4h and then drying the sample into experimental tank crushing tests. (4) respectively, humidity: 30%, 60%, 85%. Fracturing proppant (ceramic) Broken rate in wet conditions compared to experimental data shown in Figure 2.

As can be seen from Figure 2, proppant (ceramic) in wet conditions some increase its fragmentation rate, the test sample, its fragmentation rate to about 1% of the normal sample. However, after the wet proppant (ceramic) and then after drying, it has a certain fragmentation rate decreased, but the sample can not be reduced to normal levels. Crushing hardness test tube for fracturing proppant (ceramic) Broken rate impact test This test is the main test tube samples for comparison in the crushing hardness experiments under different conditions fragmentation rate changes. (1) in this experiment 35CrMo alloy steel tube manufacture crushing experiments, and to crush Rockwell hardness test tube is not the same. Crushing test tube manufacture actually measured after completion of each experiment the actual cylinder broken Rockwell hardness. (2) Select the performance and stability of fracturing proppant (ceramic) samples were used as test samples. (3) the experimental manufacture broken sample tube experiments were broken rate measured for each test tube 3 times broken parallel experiments, the arithmetic average as measured by the crushing test tube broken values. Crushing hardness test tube for fracturing proppant (ceramic) fragmentation ratio test shown in Figure 3. As can be seen from Figure 3, the hardness of the fragmentation test tube proppant (ceramic) have an impact crushing rate, broken test tube higher the hardness, crushing rate of the measured higher, and vice versa is low. Therefore, the same test sample, the experiment with a different hardness, crushing tube breakage of the measured difference is greater. The purpose of this experiment, the broken tube experiments between hardness HRC28 ~ HRC42 its crushing the sample rate on the difference of about 3%. Conclusion proppant (ceramic) wetted with water under the conditions in which fragmentation rate increase is larger, its fragmentation rate to more than 2 times the normal samples. After further drying, the fragmentation rate have significantly reduced, but not down to the normal level of the sample. Proppant (ceramic) in wet conditions with some increase the fragmentation rate, the crushed sample rate to about 1% of normal. But then, after drying, it has a certain fragmentation rate decreased, but the sample can not be reduced to normal levels. Crushing hardness test tube for fracturing proppant (ceramic) has a certain impact crushing ratio, the higher the hardness crushing test tube, which measured the higher the rate of broken, otherwise lower. In terms of product quality testing, the test sample and the detection conditions require the material to crushing test tube and the hardness of the test results to ensure objectivity, reproducibility, comparable essential. When the test data at the edge of the data, these factors determine the quality of products play a key role in the results.