Refined management in the western part of North China achieves performance increase

Sinopec News Network reported this year, in the face of severe market conditions, the western part of North China Petroleum Engineering Company has strengthened on-site safety management, carried out technical research, and strictly controlled construction costs, effectively improving the efficiency and effectiveness of drilling construction
.

New technology boosts drilling speed

"This year we have won 10 red flags in succession, which is inseparable from the application of new technology
.

In the drilling operation of Shunbei 56X well, the company used a new type of drilling fluid and used a 120mm high temperature resistant screw + 6-blade PDC bit for directional drilling.
The average ROP reached 3.
06 m/h, which was 112.
5% ​​faster than the adjacent well.
It has solved the problem of block dropping and slow drilling speed in the fractured zone deeper than 7,700 meters in the Shunbei Oilfield
.

They first tried to use "Power-V+7 185mm high-torque screw with constant wall thickness" in the Shunbei 4-1H well.
While effectively controlling the wellbore trajectory, they maximized the WOB, speed and displacement parameters.
, To achieve "full-parameter" drilling, the average mechanical drilling speed reached 8.
52 m/h, an increase of 116.
2% compared to the design speed, and the three-opening interval was completed in one trip, refreshing the record of the shortest drilling cycle for the three-opening interval in the block
.

　　The company also used the "liquid casing" technology for the first time in Shunbei 4-9H wells to strengthen the plugging with key materials such as nano-deformable polymers and high-elastic synthetic graphite to improve the pressure-bearing capacity of the formation and overcome the Silurian system in the Shunbei Oilfield.
The formation density window is narrow, and the downhole complex and frequent difficulties such as lost circulation, well collapse, and well wall instability, save 11.
83 compared to the design cycle, and smoothly drilled to 6045 meters three-open middle completion depth, accumulating for the subsequent speed and efficiency of the block Experience
.

　　Safety "find the fault" row hidden dangers

　　"Indoor data filling is not standardized
.

　　For such a regular monthly meeting of safety production, the Western Project Department convenes on time every month
.

　　The western project department of the company also moved the service gate forward based on the on-site construction situation, and adopted experts in technology, safety, and well control in important nodes, special well sections, and key processes such as equipment relocation, casing running, and wellhead replacement.
Be stationed in the well, supervise and guide the site to do a good job in safety production, and shorten the emergency response time
.

　　At the same time, the company's deep and ultra-deep well technology center will also use Shunbei 56X, Shunbei 4-9H and other key ultra-deep exploration wells as real-time targets, strengthen the analysis and research of geological design prediction data, summarize and refine successful experience, and regularly organize technical forums.
, In response to the poor drillability of the well, frequent occurrence of complex situations such as lost circulation and block dropping, which seriously restricted the improvement of construction efficiency, exchanges and discussions were carried out to avoid complex downhole occurrences and ensure safe production in a stable and orderly manner
.

　　Controlling costs and leveraging benefits

　　"Look, we have saved more than 10,000 yuan in a single well alone
.

　　Strict cost control has now become the consensus of the company's employees
.

　　During the on-site construction, on the basis of strengthening the analysis of the current well data, optimizing the drilling tool assembly, reasonably adjusting the drilling parameters and optimizing the performance of the drilling fluid, according to the production cycle index issued by the company, the inverted construction plan is updated and the nodes are updated daily The control table and the construction schedule chart let each employee know whether the production and construction have kept up with the planned rhythm, and the pressure is transmitted layer by layer
.

　　The company also uses grid electricity instead of traditional diesel generators to provide clean and environmentally friendly power.
Each well team saves about 13,000 yuan in cost per day; upgrades and transforms the electronic control system, newly equipped with five-unit variable frequency vibrating screen, variable frequency high-speed centrifuge, and Equipment and facilities such as mud tanks can effectively reduce wasteful work loss; supporting the installation of mechanical seal flushing pipes, while ensuring construction displacement, avoids flushing pipes leaking under high pump pressure, and improves construction safety
.