Technical construction of oil proppant production safety and quality requirements

Petroleum proppant for clothes, skin corrosion strong, with liquid, must pay attention to safety during construction.
(1) pay attention to the preparation of oil proppant Wear PPE, bold but cautious, there is someone in charge of directing with liquid and well in advance of each lotion, once splashed acid in the body, the face you want to rinse with water, heavy timely sent to hospital for treatment.
(2) with a good oil proppant placed after the ferry to check the acid tanker valves, liquid inlet lid is on tight, can not have drip, drain phenomenon. Vehicle shall be marked with the danger mark at the wellsite shipped cracks pay attention to safety.
(3) the construction team on well after construction should be carefully checked before the wellhead valves are complete, whether the screws tightened to the construction until after passing the wellhead. Firstly wellhead natural gas fracking test the pipeline construction, leak-free mayonnaise, the only sour note to the well.
(4) When a large amount of acid, when a new well acidizing process to prepare the production command vehicle, ambulance wells.
(5) in strict accordance with the design and construction. The quality of acidizing is directly related to the post-acid effect. Therefore, we must ensure construction quality.
① conduct tests, before acidizing, a clear division of labor, unified command: Non-staff shall enter the high-fracking process zone.
② strict accordance with design requirements, acidizing.
③ guarantee the construction of the oil leak proppant not AIDS, given the amount of fluid play enough design.
④ for matrix acidizing pump pressure must not exceed the fracture pressure, ready to observe the construction of pump pressure, ranked the most changes.
⑤ take full, take prospective construction pressure, displacement, construction time, etc., well carefully recorded.
Late Management (four) Construction
After acidizing oil and gas wells, bad management, construction related to the effect of acidification. After acidizing wells shut as designed after timely open wells. If self-spray nozzle is installed drainage capacity requirements; generally when dropped O.1% residual acid concentrations, flowing well stop production of crude oil, non-flowing well from a string acidified turn pump pumping into production. Not since the spray is necessary and timely rehearsal is the key to prevent secondary precipitation acidification success. Oil and gas wells in the production process should be carefully recorded oil, casing fracturing fluid , daily production of oil and gas and other data, such as the timing of the measured fluid level wells. With drainage conditions on injection wells after acidizing according to design requirements to drain residual acid, restore water when the residual acid dropped when OI%; do not have drainage conditions, timely recovery water injection wells, the residual acid formation squeeze Deep. Carefully recorded during the injection pump fracturing proppant , casing pressure, oil fracturing sand , water injection daily, injected water quality data, timing measurements indicate absorption curve, the injection profile and so on.After acidification with a note for a smooth construction by water injection rate can not be too large, otherwise easily lead to the formation velocity sensitivity, acidification effect: To inject water quality water quality standard character sets, this plug formation injection wells, acidified to fail.