API TR 16TR1-2018 pdf free download

API TR 16TR1-2018 pdf free download.BOP Shear Ram Performance Test Protocol.
4 Test Equipment 4.1 General Information to support the traceability of the test equipment and test specimens is essential and shall be recorded, as noted below, prior to each test. The required documentation of the BOP is described in Section 9 and the example data sheet in Annex A. 4.2 Blowout Preventer (BOP) The following items shall be recorded for the blowout preventer (BOP) being used for the shear tests: — assembly part number, serial number, and revision level; — manufacturer; — description; — size (bore) (in.); — rated working pressure (psi). 4.3 BOP Operator The following items shall be recorded for the BOP operator: — type; — operator part number, serial number, and revision level; — rated hydraulic working pressure (psi); — piston closing (shear) area (in 2 ); — piston closing (seal) area (in 2 ); — piston rod area (in 2 ); — piston opening area (in 2 ). NOTE Depending on the operator design, the shear and seal areas may or may not be equal. 4.4 Shear Ram The following items shall be recorded for the BOP shear rams being used for the shear tests: — manufacturer of shear rams; — manufacturer of shear ram seals, if applicable; — style (blind-shear, casing-shear, brand description of blades, etc.); — part number, revision level, and serial number (upper and lower shear ram set); — shear blade part number, revision level, and serial number, if applicable;— seal part number with revision level and batch number, if applicable; — photo image recorded of both shear blades. 4.5 Instruments The pressure-measuring devices shall be accurate to at least +/-0.5% of the full range of the sensor. The monitoring system shall be at least as accurate as the measuring device. The update (scan) rate of the monitoring system for the opening and closing chambers shall be equal to, or faster than, 20 Hz. Pressure-measuring devices shall be located on the operator closing (shearing) chamber and opening chamber. The location of the measuring devices shall be at the close and open ports of the BOP. A measuring device to record wellbore pressure shall be located near the BOP, e.g. on the BOP side outlet or on the test stump. Chart recorders are acceptable for measuring wellbore pressure. 5 Test Samples 5.1 Pipe Description The following information shall be recorded for each shear pipe sample: — pipe outside diameter (in.); — pipe weight based on plain end (ppf); — pipe wall thickness (in.); — pipe grade. 5.2 Pipe Properties Mill test reports (MTRs) for the pipe to be tested shall be collected and reviewed to confirm that the material meets the tubular specification prior to testing. The following pipe properties shall be recorded for each shear pipe sample based on actual material testing in accordance with ASTM A370 from each joint of pipe: — chemical composition per the MTR; — hardness (HRC or Brinell, depending on material data); — yield strength (psi, based on 0.2 % yield offset strength); — ultimate tensile strength (psi); — elongation (%); — reduction of area (%); — Charpy V-notch impact testing at 70 °F (ft-lb). These pipe properties shall be obtained from an un-deformed region of the pipe, either before or after the test. Prior to shearing, the following measurements shall be taken in a region of the pipe that is free from distortion or cold work from shearing and has not received any hot work (e.g. from a cutting torch):— wall thickness (in.) using ultrasonic test measuring device, per ASTM A388; — hardness (HRC or Brinell, depending on material data); — outside diameter (in.). These pipe measurements shall be taken at four places around the pipe (at 90 degrees to each other) and in three locations along the pipe. The locations along the pipe shall include a: — plane near the expected shear plane; — plane 1 to 2 pipe diameters above the expected shear plane; and — plane 1 to 2 pipe diameters below the expected shear plane. Therefore, properties are taken at 1 2 discrete locations (see Figure 1 ).