Extensive application of hollow glass bubble in oil well cementing

Extensive application of hollow glass bubble in oil well cementing

1,Increasingly extensive application.

In 2022s, the report "Global Oil and Gas Exploration and Development Situation and Oil Company Dynamics” commonly released by the National Oil and Gas Strategy Research Center and the China Petroleum Exploration and Development Research Institute, the global deepwater oil and gas resources are rich and the proven rate is low, which is an important factor for exploration and development. The most potential development direction of the business. The report shows that in the conventional large-medium oil and gas discoveries, they are concentrated in the deep-water to ultra-deep water areas. In 2021, a total of 20 conventional large-to-medium-sized oil and gas fields will be discovered in the global deepwater and ultra-deepwater fields, with recoverable reserves of 1.09 billion tons of oil equivalent, a year-on-year increase of 3.4%. In terms of field distribution, a total of 12 oil and gas fields were discovered in the ultra-deep water field with a water depth of more than 1,500 meters, accounting for 60% of the total. 80% of the reserves.

Hollow glass microspheres have been widely used in deep oil field cementing. With the decline of global shallow oilfield development and the growth of deep oilfield development, the application of hollow glass microspheres is becoming incresingly extensive.

Hainuo Technology has ranked in the major supplier of the cementing field of PetroChina for many years and formed strategic cooperation with CNOOC, PetroChina, Sinopec and Yanchang Petroleum.

2, Well adapted low density Drilling Fluid.

Hollow glass microspheres are inorganic non-metallic oxides, which are weakly alkaline and very stable in nature. They can be added to various existing mud systems without reacting with various chemical substances in the mud, and have strong anti-corrosion properties. High compressive strength, incompressible, and not easily broken, thus ensuring stable performance of drilling fluid.

Hollow glass microspheres have low density, are spherical in shape, and have good fluidity. As an excellent "solid lubricant", they can be used to prepare low-density drilling fluids and prolong the service life of drill strings.

Hollow glass microspheres are easy to use with existing drilling equipment, without adding special equipment, and have wide applicability. And it can be recycled repeatedly to reduce the overall cost.

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3,Well adapted low density cement slurry with various functions.

The low-density cement slurry system is well mixed with additions of hollow glass microspheres is one main way to solve the leakage of low-pressure and easy-to-leak well cementing slurry.

By adjusting the filling amount of hollow glass microspheres, the density of cement slurry can be effectively adjusted. According to different construction environments, the cement slurry with corresponding pressure can be matched, and the settlement stability is better.

Hollow glass microspheres have advantage of good fluidity in terms of mixing and pumping, and the thickening time can be adjusted according to the construction needs, which is convenient for operation.

Hollow glass microspheres are hollow spheres, the cement slurry with their additions has good thermal insulation performance. During the process of oil pumping, the oil temperature is always maintained to ensure fluidity and reduce pumping pressure.

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