API RP 11BR:2008(R2015) pdf download
API RP 11BR:2008(R2015) pdf download.Recommended Practice for the Care and Handling of Sucker Rods.
5.2,3.2 Limitations
a. The ouLsideof the pump b.rnel o(atop.rnchorpump isat suction pressure. Consequently. it is more subject to bursting or parting the barrel tube than a bottom anchor pump. Well depth and the possibility of fluid pound should be carefully considered bef.we running a top-anchored pump with a thin wall barrel. If the depth of the well is within the depth recum mendatiuns. a tup-anchor pump is a guod general purpose mstallatiun.
5.3 TO OBTAIN OPTiMUM PERFORMANCE
5.3.1 Pump Sumergence
The energy to fill a pump during the upstmke must be supplied by the well forniation, Therefore, it is essential the pump be installed as low in the well bore as possible to main- tarn minimum hack pressure on the fonnation. “Ihe pump intake should be placed below the perforations, or as close above them as possible.
5.3.2 Gas Separation
Gas pruduchon through the pump sesn,ly reduces pump cfll.icncy. Where gas interference is a problem. a properly designed gas separator should be installed as a part of the subsurface pumping assembly. Various styles arc asailabk with each having ments for particular well conditions. It is important to keep the back pressure on the annulus at the welihead at a minimum.
5.3.3 Installations Where Formation Sand Can Be a Problem
A pump will inherently have problems it sand is allowed to enteL Therefore, it is best to utili,e some method of sand control to prevent enuance of sand into the well bore. Gravel packs. screens, and chem.cai bonding agents are frequently Uscd br this purpose.
5.4 ALLOWABLE PUMP SETTING DEPTHS
The formulas for the dctennination of the maximum allowable pump setting depth (ASL)t arc presented in this section.
d) The hanger bar must be perpendicular to the welihead in line with the well bore and void of dirt and grease.
e) Place the polished rod clamp In a dean area on polished rod and tighten nut (or nuts) to hand tight. Do not install on any splayed metal part of the rod.
f) For proper torque, follow manufacturer’s instruction tag attached to the clamp (see API 11 B).
g)1t a friction type polished rod clamp is used with a metal sprayed polish rod, the user should be aware that the O.D. has a +0.005, —0.040 tolerance between the pin end and start of metal spray (see API 11 B).
8 Inspection of Used Sucker Rods and Couplings
8.1 General
8.1.1 Inspection Methods
Sucker rods and couplings should be inspected by using visual, electromagnetic, magnetic particle and dye penetrant testing methods and various dimensional gauging tools (Stuart and Lloyds). Any of the above methods or combinations of them can result in an adequate inspection as selected and defined by the user. API 11 B has a listing of definitions for defects and details on measurement procedures to verify workmanship and finish.
All inspection and NOT equipment used by the methods stipulated in this RP should be calibrated in accordance with
8.1.3.
8.1.2 Personnel Qualification
Inspection personnel should be minimally Level 1 qualified according to ASNT SNT-TC-1A (Recommended Practice, Personnel Qualification and Certification io Nondestructive Testing).
8.1.3 Calibration Frequency
Inspection equipment calibration frequency should be adequate to assure accuracy of the equipments measurements. The calibration status shall be recorded on the gauge and in a log book (or similar tracking method) with the date of the calibration and the initials of the person who performed the calibration. All calibration activities shall be traceable to NIST or equivalent.
8.1.4 CalIbration References
Working gauges. API P6 and P8 no-go’ and ‘go” nng gauges used to inspect sucker rod pins and API B2 and B6 “go” and “no-go” box plug gauges for sucker rod couplings, shall be checked against Master Reference Gauges according to gauge certification specifications described In API 1IB, Working master gauges P8 and P6 shall be checked against setting gauges P7 and P5, respectively, prior to running any rod order.
8.1.5 Feeler Gauges
The working area(s) of the feeler gauges shall be checked at the beginning of each shift with a calibrated micrometer.
Feeler gauges shall be trimmed or replaced if they do not measure within —0.0002 in. of the actual value.
8.2 VIsual Inspections
8.2.1 Preparations for Inspections
The rod body should be visually inspected for signs of damage, corrosion or wear by a qualified person. Rod guides should be removed before rods are inspected.
