Capsule accelerator as well as use method and application thereof
A technology of encapsulation and granules, which is applied in microcapsule preparations, chemical instruments and methods, microsphere preparation, etc., can solve the problems of limited lubrication effect of drilling fluid lubricants, drill bit wear, etc., to reduce friction coefficient, increase cutting frequency, The effect of prolonging life
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0027] (1) Preparation of prepolymer: use the molar ratio of urea: formaldehyde = 1: (1.5-2.0), adjust the appropriate pH value (pH 7-9) and reaction temperature (60°C-80°C) to prepare prepolymer body. In a preferred embodiment, the molar ratio of urea:formaldehyde=2:3.
[0028] (2) Preparation of emulsion: take the prepolymer solution as the water phase, and the lubricating and drag-reducing material of the core component is selected as engine oil, and the engine oil is used as the oil phase, prepared under the action of surfactant Tween 80 and mechanical stirring In the oil-in-water emulsion, the amount of machine oil added is 5%-10% of the total mass of the oil-in-water emulsion in terms of the mass ratio of the oil phase.
[0029] (3) The external urea and formaldehyde prepolymer solution in the oil-in-water emulsion is polycondensed to generate a polymer of urea and formaldehyde, which is the wall component, and the polymer of urea and formaldehyde is under the effect of...
Embodiment 1
[0044] The laboratory produced the following 5 batches of products according to the above preparation method. The core components of the 5 batches of products were all machine oils, and the weight of the core components and wall components of the 6 batches of products accounted for the total weight of the encapsulated particles. The weight ratio is shown in Table 1.
[0045] Table 1 Core component and wall component proportion data
[0046] product Mass proportion of core components, % Mass proportion of wall components, % 1 55 45 2 60 40 3 65 35 4 70 30 5 75 25
[0047] The diameters of the wall components of the five batches were 45 microns, 38 microns, 50 microns, 30 microns, and 35 microns, respectively, and the sphericity of the wall components was 0.865, 0.874, 0.855, 0.866, and 0.929. Of course, the diameter of the wall component can also be set to 10 microns, which is not set in this embodiment.
[0048] The dynamic dete...
Embodiment 2
[0052] Well Moxi 023-H1: Drilled to a depth of 4507m on May 12, 2021, with a friction of 200-280KN, a torque of 7-9kn.m, and serious underpressure. Using the capsule speed-enhancing agent described in this application, the lifting friction of the entire well section (inclined well section and straight well section) of Moxi 023-H1 well was reduced by 42.8%, the lowering friction resistance was reduced by 55%, and the moment torque was reduced by 15.4%. Up to 30% faster. Using a dynamic analyzer, analyze the shape and particle size distribution of the drilling fluid particles without adding the speed-enhancing agent and the particles after adding the speed-enhancing agent. The performance table is shown in Table 3:
[0053] Table 3 Performance Table of Moxi 023-H1 well before and after the addition of capsule speed-improving agent
[0054]
[0055]
[0056] Moxi 023-H1 well added a total of 24 tons of capsule speed-up agent, including 19 tons in the deflection section an...
PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
| force | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More