Successful construction of drilling shale gas wells in Bohai Sea

Sinochem News Network News on July 3, PetroChina Bohai Drilling Second Cementing Company successfully completed the cementing construction of the Yang 101H88-1 well of the Sichuan shale gas project, setting a single well vertical in the Luzhou deep shale gas block.
Records such as the deepest depth, the highest temperature at the bottom of the well, and the largest volume of cement paste
.

It is understood that the Yang 101H88-1 well has been drilled in four, with a depth of 6,265 meters, a maximum vertical depth of 4,320.
43 meters, a maximum deviation of 97.
21°, and a bottom hole temperature of 151.
4°C.
The geological conditions in the area are complex, the open hole section is prone to leakage, and the horizontal section is long It is difficult to center the casing, the wellbore is difficult to clean, the gas layer is widely distributed and active, and the cementing operation is difficult
.

Based on the principle of "one well, one policy" and "one section, one policy", the company established a research team, selected technical backbones to track the development of the well, and organized the construction party and related parties to jointly conduct a "consultation" on the well
.

At the same time, the company started the pre-construction production preparations ahead of schedule, and completed the on-site distribution of 18 vertical tanks, 280 tons of mixed and transported cement, and 140 cubic meters of cementing fluid within 3 days
.