Microsoft Word C039196e doc Specification for Lock Mandrels and Landing Nipples ANSI/API SPECIFICATION 14L SECOND EDITION, AUGUST 2007 EFFECTIVE DATE MARCH 1, 2008 REAFFIRMED, AUGUST 2012 CONTAINS API[.]
General
To order products that meet this International Standard, the user or purchaser must create a functional specification detailing the necessary requirements and operating conditions This information can be communicated through dimensional drawings, data sheets, or other appropriate documentation, and may also include identification of the specific product from the supplier or manufacturer.
Functional characteristics of lock mandrels and landing nipples
The functional characteristics for lock mandrels and landing nipples include the conveyance method, locking mechanism, no-go feature, selectivity, sealing device, dimensions, and the passage of lines (electrical and/or hydraulic) in the annulus, specifically for landing nipples.
Well parameters
The following well parameters shall be specified, as applicable, for the lock mandrel and landing nipple: a) size, mass, material and grade of the casing and tubing;
The term "weight" is frequently misused to refer to mass, a practice that is no longer recommended Key factors to consider include the well depth and the angle of installation, the architecture of casing and tubing along with any deviations or restrictions affecting the lock mandrel and landing nipple, and the expected loading conditions that may impact these components.
Operational parameters
The operational parameters for the lock mandrel and landing nipple must include details on acidizing—specifying acid composition, pressure, temperature, velocity, exposure time, and additional chemicals used; fracturing—covering proppant description, fracture fluid velocity, and proppant-to-fluid ratio; sand consolidation operations; and the type of well intervention, which should detail the service equipment utilized, such as electric line, slick line, braided line, coiled tubing, or snubbing equipment.
Environmental compatibility
To ensure environmental compatibility for the lock mandrel and landing nipple, it is essential to identify the production/injection fluid composition, including its mass, chemical, and physical properties, as well as the condition of the fluid (solid, liquid, or gaseous) throughout its life cycle Additionally, both the minimum and maximum anticipated values for production/injection pressures, pressure differentials, temperatures, and flow rates must be considered If the user or purchaser has access to relevant historical corrosion data or research, they should inform the supplier or manufacturer about the materials capable of performing effectively in the specified corrosion environment.
Compatibility with the related well equipment
To ensure compatibility of the lock mandrel with related well equipment, it is essential to specify the required size and type of the lock mandrel for positioning flow control equipment in the landing nipple Additionally, details about the landing nipple's size, model, and type must be provided, along with the size, type, material, configuration, and interface dimensions of the connection between the flow control equipment and the lock mandrel Furthermore, the size, type, and configuration of any other products intended for use with the lock mandrel should also be included.
To ensure compatibility of landing nipples with well equipment, it is essential to specify the following information: a) the material, dimensions, and top and bottom tubular connections of the landing nipple; b) the internal receptacle profiles, sealing bore dimensions, outside and inside diameters, and their respective locations; c) the size, type, and configuration of lock mandrels or other products intended for use with the landing nipple.
Quality documentation
The quality documentation grade (i.e Q1 or Q2 as given in 7.4) shall be specified by the user/purchaser.
Design validation
The design validation grade (i.e V1, V2 or V3 as given in 6.5) shall be specified by the user/purchaser
General
The supplier or manufacturer is responsible for creating a technical specification that meets the requirements outlined in the functional specification Additionally, they must supply product data as specified in section 7.2.1 to the user or purchaser.
Technical characteristics of lock mandrels and landing nipples
The lock mandrel, along with its sealing devices, must be designed to withstand the loading conditions outlined in sections 5.3.c) and d) It should effectively locate and seal at the designated position while maintaining integrity under specified pressure, temperature, and axial load conditions, as referenced in sections 6.3.2, 6.5.3, and 6.5.4.
The landing nipple, along with its seals, must be capable of supporting the specified loading conditions and effectively receiving and sealing the lock mandrel at the designated location under the required pressure, temperature, and axial loads Furthermore, specific landing nipple designs that include control fluid redirection features must also comply with the relevant performance standards.
Design criteria
Design requirements must encompass methods, assumptions, and calculations, detailing criteria such as size, testing, working and operating pressures, materials, and environmental factors like temperature limits and chemicals Additionally, all relevant requirements that inform the design should be included It is essential that design documentation undergoes review and verification by a qualified individual who is not the original designer.
Lock mandrel and landing nipple equipment must be produced according to specifications and drawings that closely match the validated size, type, and model of previously tested equipment.
The supplier or manufacturer must establish verified internal yield pressure, collapse pressure, minimum tensile strength, temperature limits, and rated working pressure, excluding end connections They are required to identify critical components and the mode of stress, calculating the stress levels in these components based on maximum design input loads to identify those that are critically stressed, defined as being at 90% or more of the minimum design yield strength Calculations must utilize the minimum material condition and yield strength, taking into account temperature limit effects and thermal cycles, with metal mechanical properties de-rating following the ASME Boiler and Pressure Vessel Code: 2004, Section II, Part D.
The design shall take into account the effects of pressure containment and pressure-induced loads Specialized conditions, such as pressure testing with temporary test plugs, shall also be considered
Component and subassembly identification and interchangeability are essential for each supplier's or manufacturer's size, type, and model, including the working pressure rating of lock mandrel and landing nipple equipment Additive dimensional tolerances must ensure the proper operation of these components This requirement is applicable to both supplier/manufacturer-assembled equipment and replacement components or sub-assemblies.
Suppliers and manufacturers must clearly specify the materials and services that are appropriate for the designated environment outlined in the functional specification They are required to maintain written specifications for all lock mandrel and landing nipple materials, ensuring that all utilized materials adhere to these documented standards.
In the functional specification, the user or purchaser can designate materials tailored for the specific corrosion environment If the supplier or manufacturer suggests an alternative material, they must confirm that this material possesses performance characteristics that meet all specified well and production/injection parameters, applicable to both metallic and non-metallic components.
Material substitutions in qualified lock mandrels and landing nipples are permitted without design validation testing, except for seals, as long as the supplier's or manufacturer's selection criteria are documented and comply with all requirements of this International Standard.
6.3.2.2.1 The supplier’s/manufacturer’s specifications shall define: a) chemical composition limits; b) heat treatment conditions; c) mechanical property limits:
To ensure compliance with the mechanical properties outlined in section 6.3.2.2.1, tests must be conducted on a material sample from the same heat, which undergoes identical heat treatment as the component Following heat treatment, the material must be hardness tested to verify adherence to the supplier's specifications Documented correlation of hardness results is necessary to confirm that the mechanical properties align with the specified requirements The heat treatment procedure must clearly define the process parameters, and hardness testing is the sole mechanical property test required post-stress-relieving Acceptable documentation includes material test reports from the supplier or manufacturer.
Each welded component must undergo stress relief as per the manufacturer's written specifications and, when applicable, in compliance with the ASME Boiler and Pressure Vessel Code: 2004, Section VIII, Division 1, Subsection C, paragraphs UCS-56 and UHA-32.
The supplier or manufacturer must maintain documented procedures with acceptance criteria for evaluating or testing sealing materials and other non-metals, ensuring they meet the equipment's rated limits These evaluations must confirm that the materials are appropriate for the specific configuration, environment, and application, taking into account the combinations of pressure, temperature, and compatible fluids.
Sealing materials that have been qualified under current or previous versions of ISO 10432 or API Spec 14A for their intended applications are deemed to satisfy the design validation criteria outlined in this International Standard.
The written specifications from the supplier or manufacturer for non-metallic compounds must detail handling, storage, and labeling requirements This includes essential information such as the cure date, batch number, compound identification, and shelf life specific to each compound Additionally, the specifications should outline critical characteristics that affect the material's performance, including the compound type and minimum mechanical properties.
3) tensile modulus (at 50 % or 100 %, as applicable); c) compression set; d) durometer hardness
The supplier or manufacturer must specify the pressure, temperature, and axial load ratings for the specific equipment Additionally, the performance capabilities of both the lock mandrel and landing nipple equipment should be detailed to assess their overall combined performance.
For additional requirements for these products in TFL applications, see ISO 13628-3.
Design verification
Design verification is essential to confirm that each lock mandrel and landing nipple design adheres to the technical specifications set by the supplier or manufacturer This process encompasses various activities, including design reviews, calculations, physical testing, and comparisons with similar designs and historical operating conditions.
Lock mandrels and landing nipples of the same model, type, and design are deemed design-verified if they meet specific criteria: a) size variations must remain within ± 5% of the nominal seal bore diameter of the validated design; b) the supplier must identify critical components and their stress modes; c) critical stress levels of these components, expressed as a percentage of material yield, must not exceed those of the validated design under identical conditions; and d) the loading mode and stress calculation methods must be consistent between the scaled and validated products.
Sealing devices that share the same type, design, and material are deemed design-validated if their size variation remains within ± 5% of the nominal seal bore diameter established by a validation-tested design.
Design validation
This International Standard outlines three grades of design validation, which must be specified by the user or purchaser Products are required to meet at least the designated design validation grade Notably, landing nipples are only available in grades V2 or V3.
Products that were qualified under ISO 10432 or API Spec 14A before the release of this International Standard are deemed to satisfy the design validation criteria for their respective grade in this Standard.
The grades of design validation are classified as follows
⎯ V3 applies to equipment that satisfies all requirements of this International Standard except for validation testing
⎯ V2 applies to equipment that satisfies all requirements of this International Standard including the testing in 6.5.2 and 6.5.3 All grade V2 equipment meets the requirements of grade V3
⎯ V1 applies to equipment that satisfies all requirements of this International Standard including the testing in 6.5.4 All grade V1 equipment meets the requirements of both grades V3 and V2
The supplier/manufacturer shall document the validation test procedure and results The validation test pressure(s) shall exceed the rated working pressure(s) as determined by the supplier/manufacturer
The supplier/manufacturer shall also have the following documents on file:
⎯ mill certifications and drawings which show all the applicable dimensions;
⎯ materials and tolerances of components contained in the validation-tested product
Dimensional inspections of critical areas, both before and after testing, must be documented and evaluated according to the specifications set by the supplier or manufacturer, with all data properly maintained An example of a check sheet for recording this data is provided in Annex A.
6.5.2 Validation testing of landing nipples — Grade V2
The landing nipple must undergo grade V2 validation testing, which includes an internal pressure test conducted by the supplier or manufacturer for each size, type, and model at the rated test pressure The testing apparatus must accurately provide and record pressures at this rated level After stabilization, the pressure test must hold for a minimum of 15 minutes, with pressure variations not exceeding ± 1% of the applied test pressure All tests are to be performed at ambient temperature.
ISO 16070:2005(E) mandates that single-piece surface-controlled safety valve landing nipples (SVLN) must undergo pressure testing to verify their maximum pressure rating and control/communication capability During these tests, control line ports are monitored for any leakage; detection of leakage results in test failure Additionally, SVLNs with control fluid redirection features must be tested at their rated working pressure in all alternative positions of these features Testing can be conducted on typical components, provided they match the design, dimensions, and materials of the production SVLN If leakage occurs from an isolated control line port, as specified in the SVLN Operating Manual, the SVLN fails the test Furthermore, the supplier or manufacturer must ensure that the product operates within its rated temperature limits.
6.5.3 Validation testing of lock mandrels — Grade V2
The lock mandrel must undergo grade V2 validation testing, which includes the supplier or manufacturer conducting tests for each size, type, and model It should be installed in a landing nipple or test device rated equally or higher, using the specified running tool and procedures The mandrel will experience pressure differentials from above and below, adhering to the rated test pressures After stabilization, a hold time of at least 15 minutes is required, with pressure variations not exceeding ±1% of the applied test pressure Following the hold time, the pressure must be released, and the lock mandrel retrieved using the specified pulling tool and procedures All pressure testing is to be conducted at ambient temperature.
6.5.4 Validation testing of lock mandrels — Grade V1
The lock mandrel must undergo grade V1 validation testing, which includes the supplier or manufacturer performing tests on each size, type, and model It should be installed in a landing nipple or test device rated equally or higher, using the specified running tool and procedures The mandrel will be subjected to pressure and temperature limits from both above and below After stabilization, a pressure hold time of at least 15 minutes is required, with variations not exceeding ± 1% of the applied test pressure Following the hold time, the pressure will be released, and the lock mandrel will be retrieved using the specified pulling tool and procedures.
6.5.5 Validation testing of sealing devices
Sealing devices must undergo testing with water or suitable liquids to meet the rated limits of the lock mandrel they will be attached to, while also being subjected to the specified pressure and temperature conditions for their intended use The supplier or manufacturer is responsible for conducting and documenting validation testing for each size, design, and material Validation testing may utilize a locking mandrel and landing nipple or test fixture, with acceptance criteria following the guidelines outlined in section 6.5.4.b).
6.5.5.2 A sealing device which has successfully passed validation testing is qualified for use on multiple products of similar dimensional requirements within the temperature and pressure differentials tested
Verified and documented test results or field performance data that comply with the rated limits before the publication of this International Standard will be regarded as fulfilling the design validation requirements outlined in this Standard.
The supplier or manufacturer must specify the special features to be included in functional testing These features should be validated through testing or other suitable methods to ensure they meet their rated limits Additionally, the supplier or manufacturer is required to document all special features in the design documentation that are not validated by design validation testing, in compliance with this International Standard.
The supplier’s/manufacturer’s design validation documentation shall include the design requirements, test procedures including acceptance criteria and test results of special features.
Design changes
Any modifications to the design acceptance criteria of the lock mandrel or landing nipple equipment that could impact validation test performance or interchangeability will necessitate a revalidation of the equipment.
When implementing design changes, the supplier or manufacturer must evaluate stress levels, material alterations, and functional modifications of the components All changes must be clearly identified, documented, reviewed, and approved prior to implementation Additionally, any modifications to design documents must adhere to the same control standards as the original design that has successfully met the validation test requirements of this International Standard.
Functional test parameters
Each lock mandrel and landing nipple shall be functionally tested in accordance with 7.5
Documentation and data control
The supplier or manufacturer must implement documented procedures to manage all documents and data related to the requirements of this International Standard These documents must be clear and preserved to demonstrate compliance with specified requirements, stored in environments that prevent damage or loss, and readily available upon request They can exist in various formats, including hard copy or electronic media, and must be accessible and auditable by the user or purchaser Additionally, all documentation should be retained for at least five years from the date of manufacture.
Design verification and validation documents must be retained for five years following the last manufacturing date This includes functional and technical specifications, the necessary quality documentation and design validation as outlined in sections 5.7 and 5.8, and a complete set of drawings, written specifications, and standards.
ISO 16070:2005(E) outlines essential instructions for the safe assembly and disassembly of lock mandrels and landing nipples, detailing permitted operations to prevent failure and ensure compliance with functional and performance requirements It specifies the material type, yield strength, and connection identification for the end connections associated with the lock mandrel and landing nipple, along with the necessity of an operations manual and product data sheet.
User/purchaser documentation
At the time of delivery, product data sheets must be provided to the user or purchaser, as specified in section 6.1 These sheets should include essential information such as the supplier or manufacturer's name and address, assembly number, product name, type, and characteristics Additionally, they must detail the materials used, including both metallic and non-metallic components, as well as specifications like drift diameters, overall length, maximum outside diameter (OD), minimum inside diameter (ID), temperature range, and rated working pressure Other critical details include top and bottom connections, conveyance method, maximum conveyance OD of running equipment, retrieval method (if applicable), design validation grade, and axial load rating.
A technical/operations manual shall be available for the products supplied
The technical/operations manual must include essential information such as the manual reference number, bill of material, technical specifications, operational procedures, pre-installation inspection procedures, storage recommendations, representative drawings with major dimensions (outer diameter, inner diameter, lengths), special precautions and handling requirements, as well as assembly and disassembly instructions.
Product identification
Each product must have a permanent identification based on the supplier's or manufacturer's specifications, which should include the supplier's name or trademark, part or assembly number, size, type, model, a unique serial number, rated working pressure, date of manufacture, and design validation grade.
Quality control
This International Standard specifies two grades of documentation which shall be supplied with the equipment, and the user/purchaser shall specify the grade required, with Q2 as the minimum
The grades of documentation are classified as follows:
⎯ Q1 certificate of conformance and NDE and mill certification for the supplier’s/manufacturer's specified critically stressed components
The manufacturing of components necessitates that raw materials are accompanied by a certificate of conformance, confirming compliance with the supplier's or manufacturer's documented specifications Additionally, a material test report is required to enable verification that the raw materials meet these established standards.
7.4.2.2 Mechanical and physical properties 7.4.2.2.1 Metallic materials
For metallic materials, the following mechanical property test methods shall be used (6.3.2.2.1)
⎯ Tensile testing shall be in accordance with ISO 6892
⎯ Hardness testing shall be in accordance with ISO 6506 or ISO 6508; alternatively, ISO 6507 may be used if ISO 6506 or ISO 6508 cannot be applied due to size, accessibility, or other limitations
Hardness conversion to different measurement units must follow ASTM E 140, except for the exceptions specified in ISO 15156, which applies to materials used in wells where corrosive agents may lead to stress-corrosion cracking.
NOTE For the purposes of these provisions, NACE MR0175 is equivalent to ISO 15156 (all parts)
Non-metals shall be tested to determine their mechanical properties as follows: a) tensile, elongation, modulus:
1) O-rings: in accordance with ASTM D 1414;
2) all others: in accordance with ASTM D 412 (alternative ASTM methods are acceptable, where applicable);
3) non-elastomers: in accordance with ASTM D 638 (alternative ASTM methods are acceptable, where applicable); b) compression set (homogeneous elastomeric compounds only):
⎯ O-rings: in accordance with ASTM D 1414;
⎯ all others: in accordance with ASTM D 395; c) durometer hardness:
1) O-rings: in accordance with ASTM D 1415 or ASTM D 2240 with Shore M;
2) all others: in accordance with ASTM D 2240 (plastics and other materials may be Rockwell hardness tested where applicable)
Components that undergo processes like heat treatment, welding, or coatings must include: a) a certificate of conformance confirming that the materials and processes align with the supplier's or manufacturer's documented specifications; b) a material test report to enable the supplier or manufacturer to verify compliance with these specifications.
Application of coatings and overlays shall be controlled using documented procedures and instructions which include acceptance criteria
Welding and brazing must adhere to specific requirements, including the qualification of procedures and personnel as outlined in the ASME Boiler and Pressure Vessel Code: 2004, Section IX Additionally, any materials and practices not specified in this code should utilize weld procedures that are qualified according to the methods established in the same section of the ASME Boiler and Pressure Vessel Code.
7.4.3.4 Qualification of heat-treating equipment
Furnaces used for heat treatment of production parts must meet specific requirements Heat treatment should be conducted using calibrated and surveyed heat-treating equipment Each furnace needs to undergo a survey at least once a year before heat-treating operations, and any repairs or rebuilds necessitate a new survey Additionally, both batch type and continuous type heat-treating furnaces must be calibrated following established procedures.
1) procedures specified in SAE-AMS-H-6875:1998;
3) supplier’s/manufacturer's written specifications, including acceptance criteria which are not less stringent than the procedures identified above
The requirements for furnace instrumentation shall be as follows: a) automatic controlling and recording instruments shall be used;
According to ISO 16070:2005(E), thermocouples must be positioned within the furnace working zones and shielded from the furnace atmospheres Additionally, the controlling and recording instruments for heat treatment processes should have an accuracy of ± 1% of their full scale range These temperature instruments need to be calibrated at least quarterly until a documented calibration history is established, after which calibration intervals will be determined based on repeatability, usage, and the documented history Furthermore, calibration equipment must maintain an accuracy of ± 0.25% of the full scale range.
7.4.4.1 All components, weldments, subassemblies and assemblies of lock mandrel and landing nipple equipment shall be traceable except: common hardware items such as nuts, bolts, set screws and spacers
Traceability must adhere to the documented procedures of the supplier or manufacturer All assemblies, components (including seals), weldments, and subassemblies must be traceable to a specific job lot and accompanied by a material test report Additionally, the heat or batch lot of components and weldments must be clearly identified In cases where components and weldments come from a multi-heat or multi-batch lot, any non-compliance with the specified requirements by the supplier or manufacturer will result in the rejection of all components and weldments from that lot.
7.4.4.3 Traceability for lock mandrel and landing nipple equipment is considered sufficient if the equipment meets the requirements of this International Standard when it leaves the supplier’s/manufacturer's inventory
Measuring and testing equipment for acceptance must be identified, controlled, calibrated, and adjusted at specified intervals according to recognized national or international standards, such as NCSL Z540-1, as well as the specifications provided by suppliers or manufacturers, ensuring traceability to a nationally registered certifying body.
7.4.5.2 Pressure-measuring devices shall: a) be readable to at least ± 0,5 % of full scale range; b) be calibrated to maintain ± 2 % accuracy of full scale range
7.4.5.3 Pressure-measuring devices shall be used only within the calibrated range
Pressure-measuring devices must be calibrated using a master pressure measuring device or a dead weight tester Initially, calibration should occur every three months until a documented calibration history is established Subsequently, calibration intervals will be determined based on factors such as repeatability, usage frequency, and the established calibration history.
NDE requirements must adhere to specific guidelines, including the necessity for all NDE instructions to receive approval from a Level III examiner qualified per ISO 9712, with ASNT SNT-TC-1A considered equivalent Additionally, all critically stressed components are required to undergo magnetic-particle or liquid-penetrant inspections to detect surface defects and ensure compliance with the supplier's or manufacturer's written specifications.
According to API Specification 14L/ISO 16070, all pressure-containing welds must undergo magnetic-particle or liquid-penetrant inspection for surface defects, along with volumetric inspection using radiographic or ultrasonic techniques to ensure compliance with the supplier's or manufacturer's specifications Similarly, all pressure-containing castings and forgings are required to be inspected for surface defects and volumetrically inspected to verify adherence to the specified standards The supplier or manufacturer has the option to establish Acceptable Quality Level (AQL) inspection levels based on documented variation history.
Liquid-penetrant inspection shall be performed as follows: a) method: in accordance with ASTM E 165; b) acceptance criteria: in accordance with ASME Boiler and Pressure Vessel Code:2004, Section VIII, Division 1, Appendix 8
Wet magnetic particle examination shall be performed as follows: a) method: in accordance with ISO 13665; b) indications shall be categorized as one of the following:
Only indications with major dimensions exceeding 1.6 mm (1/16 in) are deemed relevant, while inherent indications that do not correspond to surface ruptures, such as variations in magnetic permeability and non-metallic stringers, are classified as non-relevant.
⎯ linear indication: any indication whose length is equal to or greater than three times its width;
⎯ rounded indication: any indication which is circular or elliptical and whose length is less than three times its width; c) acceptance criteria:
1) any relevant indication greater than or equal to 4,8 mm (3/16 in) is unacceptable;
2) no relevant linear indication is allowed for weldments;
3) no more than ten relevant indications in any 39 cm 2 (6 in 2 ) area are permitted;
4) four or more rounded relevant indications in a line separated by less than 1,6 mm (1/16 in) are unacceptable
Ultrasonic inspection of weldments must be conducted following the ASME Boiler and Pressure Vessel Code: 2004, specifically Section V, Article 5, with acceptance criteria outlined in Section VIII, Division 1, Appendix 12.
Ultrasonic inspection of castings must be conducted following ASTM E 428 and ASTM A 609 standards, with acceptance criteria adhering to ASTM A 609 at a minimum ultrasonic testing quality level 1.
7.4.6.2.5 Ultrasonic inspection of forgings and wrought products
Ultrasonic inspection of forgings and wrought products shall be performed as follows: a) method: in accordance with ASTM E 428 and ASTM A 388; b) calibration:
The back reflection technique requires the instrument to be calibrated so that the initial back reflection measures 75% ± 5% of the screen height when the transducer is positioned on a defect-free section of the forged or wrought product.
Functional testing
Functional testing of lock mandrels involves installing and retrieving each mandrel from a landing nipple or test device that accurately represents the actual dimensions of the landing nipple This test can be conducted with or without the sealing device, and any failure to set or retrieve the lock mandrel correctly results in a failed functional test Additionally, the supplier or manufacturer is required to document the procedure and results of the functional test.
Functional testing of landing nipples requires a comprehensive inspection of each unit according to the manufacturer's specifications Additionally, safety valve landing nipples with control-fluid redirection features must undergo functional testing as outlined in their operating manual, which includes a body integrity pressure test at the rated working pressure Any detected leaks during this test will result in a failure of the safety valve landing nipple.
Repairing lock mandrels and landing nipples must ensure that the product meets all specifications outlined in the applicable International Standard or the version in effect at the time of original production.
Example of landing nipple validation test dimensional check sheet
Nominal values Pre-test values Post-test values
Inspected by: Engineer: Date: Date: _
The API Monogram Program enables API Licensees to apply the API Monogram to their products, signifying that these items were manufactured in compliance with a verified quality management system and API product specifications This program adds substantial value to the global oil and gas sector by connecting the verification of an organization's quality management practices with their proven capability to fulfill specific product requirements.
The API Specification Q1, along with Annex A, outlines the criteria for organizations seeking to voluntarily acquire an API License to offer products that bear the API monogram, in compliance with the relevant API product specifications.
API Monogram Program Licenses are granted following a successful on-site audit, which confirms that the Licensee meets all the criteria outlined in API Specification Q1 as well as the specific requirements of the relevant API product specification.
For information on becoming an API Monogram Licensee, please contact API, Quality Programs,
1220 L Street, N W., Washington, DC 20005 or call 202-682-8000 or by email at quality@api.org
These marking requirements apply only to those API licensees wishing to mark their products with the API Monogram
The API Monogram and license number must be applied to API 14L Lock Mandrel and Landing Nipple products in accordance with the marking requirements outlined in Clause 7.3 This application should follow the licensee's procedures as specified in API Specification Q1, which mandates the inclusion of the license number and the date of original manufacture.
[1] ISO/IEC Guide 22, General criteria for supplier’s declaration of conformity
[2] ISO/IEC Guide 44, General rules for ISO or IEC international third-party certification schemes for products
[3] ISO 9000, Quality management systems — Fundamentals and vocabulary
[4] ISO 11960, Petroleum and natural gas industries — Steel pipes for use as casing or tubing for wells
[5] ISO 10432, Petroleum and natural gas industries — Downhole equipment — Subsurface safety valve equipment
[6] NCSL Z540-1 6) , General requirements for calibration laboratories and measuring and test equipment
[7] API Spec 14A, Specifications for subsurface safety valve equipment
[8] ASNT SNT-TC-1A 7) , Personnel qualification and certification in nondestructive testing
[9] MIL STD 413 8) , Visual inspection guide for elastomeric o-rings
[10] NACE MR0175/ISO 15156 (all parts) 9) , Petroleum and natural gas industries — Materials for use in
H 2 S-containing environments in oil and gas production
[11] SAE AS568, Aerospace size standard for O-rings
6) NCSL International, 2995 Wilderness Place, Suite 107, Boulder, Colorado 80301-5404, USA
7) American Society for Nondestructive Testing, PO Box 28518, 1711 Arlingate Lane, Columbus, OH 43228-0518, USA
8) Department of Defense Single Stock Point, Building 4, Section D, 700 Robbins Avenue, Philadelphia, PA 19111-5098, USA
9) NACE International, PO Box 218340, Houston, TX 77218, USA