Frac Ball, Coated Dissolvable Ball

Frac balls are inserted into wells to build up pressure in the ground. WINGOIL frac ball can be used as a test for the HCL Acid Resistance Test.
The dissolvable frac ball is composed of Dissolvable Magnesium Alloy material that can withstand the extreme pressures and temperatures encountered during the fracking process. Once the fracturing operation is complete, the ball begins to dissolve, eliminating the need for costly and time-consuming milling operations.

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Dissolvable Frac Ball HCL Acid Resistance Test

Experimental purpose: Obtain the acid corrosion resistance of the coating soluble ball in a certain temperature and certain concentration of HCL solution through experimental observation

Experimental Steps

1. Prepare experimental equipment, soluble ball, solute (HCL), clean water, beaker, balance, vernier caliper Constant temperature water bath
2. Check the appearance and size of the soluble ball, and take a photo
3. Prepare 20% HCL solution
4. Immerse the coating soluble ball in HCL solution
5. The constant temperature box maintains the HCL solution at a certain temperature, and observes the acid corrosion resistance of the soluble ball
6. Take out the soluble ball at intervals, check the appearance, shape and size of the soluble ball, and record the soluble ball weight, reconstitute the acid solution, continue to observe the corrosion resistance of the soluble ball

Test index: Record the corrosion resistance of the soluble ball every 24 hours.
Experimental considerations: Every time during an acid resistance check, pay attention to safety, record relevant data and take pictures clearly.

Date	Test location	Model
2020.11.15.10:00	Wingoil Lab	Dissolvable Magnesium aluminum alloy ball with Protection Coating
Temperature	Fluid	HCL Acid
70℃	HCl	20%

Solution Preparation and Appearance of Acid-resistant Soluble Ball

Remarks (appearance of soluble ball): smooth and bright surface

1 5 — **Corrosion resistance after 24h**

2 3 — **Corrosion resistance after 48h**

Remarks (appearance of soluble ball): The soluble ball is corroded with a few holes, the largest hole diameter is 6mm, and the depth is 2mm.

3 4 — **Corrosion resistance after 60h**

4 3 — **Corrosion resistance after 72h**

Remarks (appearance of soluble ball): The soluble ball is corroded with notches and holes, the notch diameter is 25mm, and the depth is 8mm.

Remarks (appearance of soluble ball): The gap of the soluble ball is slightly deepened, the gap diameter is 30mm, and the depth is 11mm.

Experimental Results

The coating soluble ball is at 70℃, 20% concentration of HCL solution, within 24 hours, the acid corrosion resistance is good, and the soluble ball coating is intact; 24 to 48 hours, the soluble ball has a few holes, 48 to 60 hours, A slightly larger gap appears, and within 60 to 72 hours, the gap is slightly deepened and enlarged.

Grade	Max. Tensile Strength (Mpa)	Max. Pressure Strength (Mpa)	Yield Strength (Mpa)	Shear Strength (Mpa)	Elongation (%)	Elasticity Modulus （GPa）	Hardness (HB)	Testing Conditions		Dissolution Rate mg/(cm2*hr)	Dissolution Rate mm/hr	Density (g/cm3)	Sample Rod Size
Grade	Max. Tensile Strength (Mpa)	Max. Pressure Strength (Mpa)	Yield Strength (Mpa)	Shear Strength (Mpa)	Elongation (%)	Elasticity Modulus （GPa）	Hardness (HB)	Temp (℃ )	Concentration of CL	Dissolution Rate mg/(cm2*hr)	Dissolution Rate mm/hr	Density (g/cm3)	Sample Rod Size
HH-006	380	430	260	140	＞3	44.8	＞80	93	3%	50-70	0.56	1.83	Φ110×1000
	380	430	260	140	＞3	44.8	＞80	93	1%	20-35	0.35	1.83	Φ110×1000
	240		180		26			150					Φ90
HH-006A	320	366	240	162	＞6	44.8	＞75	93	3%	50-70	0.56	1.83	Φ70×1000
HH-006A	320	366	240	162	＞6	44.8	＞75	93	1%	20-30	0.35	1.83	Φ70×1000
HH-008 （012）	410	486	290	197	＞5	45	＞100	93	3%	40-55	0.46	1.94	Φ110×1000
	410	486	290	197	＞5	45	＞100	93	1%	15-25	0.3	1.94	Φ110×1000
	310		260		12			250					Φ90
HH-008A	410	486	290	197	＞5	45	＞100	93	3%	60-80	0.68	1.94	Φ110×1000
HH-008A	410	486	290	197	＞5	45	＞100	93	1%	35-50	0.42	1.94	Φ110×1000
HH-008B	350	408	240	176	＞7	44.8	＞85	93	3%	30-45	0.43	1.93	Φ110×1000
HH-008B	350	408	240	176	＞7	44.8	＞85	93	1%	15-25	0.25	1.93	Φ110×1000
HH-010	200	325	130	99	24	44.3	≥40	93	3%	20-30	0.12	1.8	Φ110×1000
HH-011	410	486	300	197	＞4.5	44.8	＞100	93	3%	20-35	0.28	1.93	Φ110×1000
HH-011	410	486	300	197	＞4.5	44.8	＞100	93	1%	8-15	0.17	1.93	Φ110×1000
HH-016	280	350	190	127	13	44.8	＞60	93	3%	40-55	0.46	1.8	Φ110×1000
HH-016	280	350	190	127	13	44.8	＞60	93	1%	15-25	0.25	1.8	Φ110×1000
HH-017	210	352	150	99	18	44.8	＞60	93	3%	40-55	0.48	1.8	Φ110×1000
HH-017	210	352	150	99	18	44.8	＞60	93	1%	15-25	0.19	1.8	Φ110×1000
HH-017K	235	352	170	120	15	44.8	＞60	93	3%	100-130	0.75	1.81	Φ110×1000
HH-017K	235	352	170	120	15	44.8	＞60	93	1%	50-70	0.45	1.81	Φ110×1000
HH-018	230	362	170	130	12	44.4	≥45	50	0.84%	35-50	0.42	1.82	Φ110×1000
HH-019	235	352	170	120	7	44.5	＞55	93	3%	160-190	0.86	1.8	Φ110×1000
HH-019	235	352	170	120	7	44.5	＞55	45	0.10%	20-40	0.15	1.8	Φ110×1000
HH-021	305	415	220	140	＞3	44.5	＞65	43	0.05%	80-100	0.81	1.94	Φ110×1000
HH-022	305	415	220	155	＞4.5	44.8	＞80	43	0.05%	45-60	0.45	1.94	Φ110×1000
HH-023	275	385	180	140	8	44.5	＞65	43	0.05%	20-35	0.27	1.93	Φ28×1000
HH-024	280	415	240	145	＞4.5	44.8	＞70	43	0.05%	45-65	0.46	1.83	Φ60×1000
HH-808	370	486	262	197	＞3.5	44.8	＞100	50	0.84%	40-60	0.44	2.16	Φ110×1000

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Frac Ball, Coated Dissolvable Ball

Dissolvable Frac Ball HCL Acid Resistance Test

Experimental Steps

Solution Preparation and Appearance of Acid-resistant Soluble Ball

Experimental Results

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