“3 high”and “2 shallow”well blowout technical measures

According to the request of and ,Following are measures about “3 high”and “2 shallow”Well blowout technical measures.

1.Seriously implement the CPC group co., LTD. improve the Well control consciousness and the idea of” Positive well control”for all staff more ,promote the management level of site Well control.

2.Before starting well location and well exploration,the related department and drilling crew should learn surrounding ground and subsurface picture plus,who should contact local government to formulate effective and feasible precautionary measures in order to ensure construct safety .

3.Before drilling,in the 600m around the wellhead ,all of the injection well should achieve the request of stop note put overflow.according to the design rule,we need to store enough blanc fixe and high performance wight equipment .or not start drilling .

4.Before construction ,drilling crew should combined the fact of construction to formulate operate emergency plan of well control aiming to the risk of construction well .

5.The safety department should supervise the key wells and the first risk well .and strengthen the inspection of well control to overcome the fluke mind in which can assure the well control measures.this way can not assure the job of well control risk.

6.Insure the installation quality of the well solids control equipments and arrange specially-assigned person to manage it.Enhance the inspection and maintainance of well control equipments at site. If there is any problem, try to solve it timely to guarantee the equipments to work well. Provide complete sets of BOP tools and insure they can work well.

7.Before drilling ,the technical person need to contact with all drilling crew members .the management center of key well and risk well need to go site to contact with well technical persons .When drilling gas and oil layer ,we need to declare for examination and approval system in order to cause enough attention for all staff.

8.Every time before drilling oil and gas layer,we need to adjust the density to the upper limit of design,circulate 2 rounds above ,rest 300 minutes ,and drill down 250-350 m.When no oil gas blow out ,start drilling again.at the time of drilling,we should control the speed of drilling rig,and use 1 file to start drilling finish 3 drilling every time ,and then fill drilling fluids once,In the event of suction on the drilling process,we should take off the rig to deal with and recorded by special persons.

9.In the process of construction,we should execute the system of duty strictly .Duty start from “3 high”and “2 shallow”.We should record and measure the conditions of performance of drilling fluids ,the volume of drilling ,oil and gas according to the request.When finding the abnormal condition or blowout ,we need to report at once.

10.Achieving the level of “Standardization and skilled”should through the emergency exercise and improve the skilled operation for all staff .

11.Electronic test,there is a special person obverse the wellhead,and who fill the drilling fluids in time .the time of electronic should not pass 8 hours .or drill drift.When changing the bit,we should keep the amount of rig tools inner well in order to shorten the time of empty hole and blowout.

12.Before casing, in convenient of picking up the drill pipe when blowout occurred during the casing ,we should replace the corresponding size ram (can use micro variable bore ram) according to the regulations or reserve casing circulating sub on the rig floor, For replacing the bop ram,we should retest the blowout preventer to ensure the control equipment works well.

13.Under construction,we should implement the management of fire prevention,anti-explosion and other well control reporting system step by step strictly.Any abnormal situation should be report or asking for intructions timely in order to take an emergency measure. All drilling crews must ensure a smooth communication in case of all abnormals can be reported to the superior authorities in time.Finishing the wellhead within 30 minutes after completion of the cementing, welding simple wellhead and the vent valve.During the Hou coagulation, a special person obverse channeling risk situation for the wellhead or around.A timely report and taking emergency measures should be made to guartantee a safety drilling construction process.