On-site installation and operation process
1. Site preparation
(1) The wellhead construction approval document has been issued;
(2) The construction site is leveled and closed. Idlers cannot enter and meet HSE standard requirements;
(3) The power supply connection point is completed;
(4) Security system access;
(5) All equipment arrives at the scene;
2. Construction preparation
(1) Inventory and inspection of equipment and tools;
(2) Place and anchor the turret on the metal heating cable reel;
(3) Erection of temporary scaffolds or operating platform ladders at the well head; (the roof of the well head can be used as the operating platform)
(4) Positioning and installation of temperature control box;
(5) Hollow sucker rod installation pup joints and installation joints are normal, and there is no obvious leakage. The working position of the Christmas tree is normal.
(6) Put the φ20mm steel ball head and steel cable slowly into the hollow sucker rod until the bottom of the hollow sucker rod. In
Make a mark on the exposed steel cable to measure the total actual depth in the rod and check it with the actual length of the supplied cable.
3. Construction and installation
(1) Check all installation parts and sealing materials.
(2) Install metal MI heating cable wellhead seals, wellhead brackets, and pulleys.
(3) Carry out a comprehensive linkage inspection of all operating instruments.
(4) The person in charge of the construction site of the owner issues an order to start the formal construction operation.
(5) Release the metal heating cable to the wellhead through the wellhead pulley, and thread all other parts at the end of the metal heating cable according to the sequence shown in Figure 2.
(6) Install the “wellhead connector”.
(7) Install special accessories “MI seal holder” (pay attention to add O-ring seal).
(8) A fixed amount of heat transfer oil is poured into the hollow sucker rod.
(9) Put in the sealed semi-hard fluorine rubber ring and the sealing copper gasket, and first tighten the MI sealing bundle head, and feel that the metal MI heating cable can still move up and down.
(10) Check the linkage of the metal heating cable into the fixture of the installer and the cable reel.
(11) The electrical performance data of the metal MI heating cable is qualified.
(12) Slowly feed the metal MI heating cable into the hollow sucker rod.
(13) Note: When the metal heating cable enters the hollow sucker rod for about 100m, an operator must be guarded by the cable reel to prevent and prevent the metal heating cable from being dragged into the well, and it should be damped under the control of external force The cable continues to enter slowly.
(14) When the predetermined metal MI heating cable has entered, and the cable body obviously releases its weight, it indicates that the design depth defined in the hollow sucker rod has been reached.
(15) Fasten the MI seal head, compression ring, and lock nut in place.
(16) Disassemble other installation aids, and complete the installation of the metal MI heating cable wellhead fixing assembly.
(17) Test the electrical performance data of the metal MI heating cable as qualified, and make a record.
(18) The final wellhead hollow sucker rod installation fixture is shown above:
(19) Connect the metal power socket, and lay the cold-resistant power cable buried in the steel pipe into the temperature control box to realize the power input preparation.
(20) Check again and there is no abnormality, put on the wellhead anti-damage protective cap, the installation process is completed, and you can enter the power transmission and debugging stage.
