Water-soluble organic salt weighting agent for drilling fluid for oilfields as well as preparation method and application thereof
An organic salt and water-soluble technology, which is applied in the field of water-soluble organic salt weighting agents, can solve the problems of not mentioning the preparation method, not giving the specific composition of the weighting agent, and not disclosing the specific components of the weighting agent, so as to overcome the difficulty of viscosity Control, low solid content, good effect
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Embodiment 1
[0032] Prepare the water-soluble organic salt weighting agent of the present embodiment according to the following raw material formula:
[0033] Organic acid: 60 kg ClCOOH, 90 kg CH 2 ClCOOH, 60 kg CH 3 CHClCOOH, 110 kg CH 3 CH 2 CHClCOOH, 110 kg CH 3 CH 2 CH 2 CHClCOOH, 35 kg CH 3 CH 2 CH 2 CH 2 CHClCOOH, the purity of the above organic acids are 93%, 99%, 95%, 94%, 94%, 93% respectively.
[0034] Compound alkali: 23 kg NaOH, 58 kg KOH, 35 kg ammonia water, 10 kg N(CH 3 ) 3 Aqueous solution, 5 kilograms of epichlorohydrin, the purity of above each raw material is respectively 96%, 92%, 25%, 30%, 99%.
[0035] Concrete preparation steps are as follows:
[0036] a. Add various organic acids into the kneading reactor, knead and stir for 10-30 minutes until the stirring is uniform;
[0037] b. Add compound base, make it and each component in step a stir evenly and be pasty, continue to knead and stir for 1 hour, in the process of stirring, reaction exothermic, mois...
Embodiment 2
[0041] Prepare the water-soluble organic salt weighting agent of the present embodiment according to the following raw material formula:
[0042] Organic acid: 65 kg ClCOOH, 85 kg CH 2 ClCOOH, 65 kg CH 3 CHClCOOH, 110 kg CH 3 CH 2 CHClCOOH, 105 kg CH 3 CH 2 CH 2 CHClCOOH, 30 kg CH 3 CH 2 CH 2 CH 2 CHClCOOH, the purity of the above organic acids are 93%, 99%, 95%, 94%, 94%, 93% respectively.
[0043] Compound alkali: 25 kg NaOH, 60 kg KOH, 35 kg ammonia water, 10 kg N(CH 3 ) 3 , 5 kilograms of epichlorohydrin, the purity of each alkali above is respectively 96%, 92%, 25%, 30%, 99%.
[0044] The preparation process is basically the same as in Example 1. The product was tested for performance, and the results are shown in Table 1.
Embodiment 3
[0046] Prepare the water-soluble organic salt weighting agent of the present embodiment according to the following raw material formula:
[0047] Organic acid: 90 kg HCOOH, 105 kg CH 2 ClCOOH, 50kg CH 3 CHClCOOH, 80 kg CH 3 CH 2 CHClCOOH, 100 kg CH 3 CH 2 CH 2 CHClCOOH, 50 kg CH 3 CH 2 CH 2 CH 2 CHClCOOH, the purity of the above organic acids are 93%, 99%, 95%, 94%, 94%, 93% respectively.
[0048] Compound alkali: 26 kg NaOH, 60 kg KOH, 36 kg ammonia water, 10 kg N(CH 3 ) 3 , 5 kilograms of epichlorohydrin, the purity of each alkali above is respectively 96%, 92%, 25%, 30%, 99%.
[0049] The preparation process is basically the same as in Example 1. The product was tested for performance, and the results are shown in Table 1.
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