Remarkable results of pilot tests on trona well plugging in Henan Oilfield

Sinopec News Network News on July 14, from the construction site of Henan Zhongyuan Chemical Co.
, Ltd.
's Anpeng Soda Mine, the external market project in charge of the Academy of Engineering-the pilot test study of plugging during trona drilling has achieved good results
.

The first BC89 well implemented on site was successfully plugged and the water inflow was reduced by 75%
.
After the second well, BC90, was plugged, there was no more water gushing, and the plugging test was successful

This is the second cooperation between the Academy of Engineering and Henan Zhongyuan Chemical Co.
, Ltd.
(hereinafter referred to as Zhongyuan Chemical) following the cooperation in the “Research on Drilling and Completion Technology in the Process of Trona Mining” last year and achieving good indoor research results
.

In this cooperation, the Engineering Institute combined the characteristics of different types of plugging agents, optimized the plugging slug and construction technology according to the different water inflows that may occur in the non-main alkali layer, and formed a targeted single-well plugging technology program, which can To achieve plugging when the non-major alkali layer has water gushing, provide Party A with high-quality wellbore conditions, so as to meet the requirements of the next cementing construction of the alkaline well and achieve the purpose of high-quality cementing
.

Anpeng Soda Mine is a trona mining and soda ash and baking soda production enterprise under Zhongyuan Chemical
.
Well BC89 has the characteristics of high alkali water concentration, multi-level water gushing, and long open-hole section, which makes it difficult to successfully seal off at one time

The technicians of the project team overcame difficulties such as high temperature during the day and mosquito bites at night, and kept a close eye on the construction site to ensure the quality of the construction
.
During the cementing construction process, the well did not leak, and the cementing slurry was returned to the ground at one time, and the cementing quality was high-quality

The successful implementation of on-site pilot tests of the project laid the foundation for the expansion of the Henan Oilfield Engineering Institute's process technology research to the field of trona mining

(Qiao Qingfang He Hongpu)