Cases

Success case

Oilfield

HP GRP tubing validation — 99.8% pass rate.

Manufacturing

Batch resin content QC — 35% stability gain.

Export

GOST compliance for Russian market entry.

Case 1: High-pressure fiberglass casing quality inspection

Customer Background : A large oil and gas company, mainly engaged in oil and gas exploration, development and production, uses high-pressure fiberglass oil casing for deep well oil and gas production. The customer hopes to ensure the reliability and safety of the high-pressure fiberglass oil casing under high pressure and complex environment through professional testing services.

Project requirements :

Test the performance indicators of high-pressure FRP oil casing, such as resin content, Barcol hardness, axial tensile force and short-time failure pressure.
Ensure that the mechanical properties and environmental resistance of the oil casing in actual use meet industry standards and customer requirements.

solution :

Resin content detection : The resin content of the oil casing is determined by the burning loss method to ensure that the ratio of resin and fiber meets the design requirements.

Barcol hardness test : Use Barcol hardness tester to measure the surface hardness of oil casing and evaluate its wear resistance and surface strength.

Axial tensile force test : Use a universal testing machine to measure the mechanical properties of the oil casing under axial tensile conditions to ensure its structural integrity.

Short-time failure pressure test : Conduct high-pressure short-time water pressure failure test to evaluate the ability of oil casing to withstand extreme pressure conditions.

project outcome :

A detailed test report was provided, showing that all performance indicators of the oil casing and tubing met industry standards and customer requirements.
It helped customers confirm the reliability and safety of oil casing in actual applications and avoided potential engineering risks.
It has enhanced customers' confidence in product quality and provided an important technical basis for their subsequent purchases.

Case 2: Composite material pressure pipeline inspection service

Customer Background : A chemical company, mainly engaged in the production and sales of chemical products, widely uses composite pressure pipes for the transportation of chemical media. The customer hopes to ensure the stable performance of composite pressure pipes through professional testing to avoid production stoppages and safety accidents caused by pipeline failure.

Project requirements :

Test the performance indicators of composite pressure pipes, such as glass transition temperature (Tg), Barcol hardness and short-time failure pressure.
Ensure the performance stability and durability of pipelines in high temperature, high pressure and corrosive environments.

solution :

Glass transition temperature (Tg) detection : The glass transition temperature of the pipeline is measured by differential scanning calorimetry (DSC) to ensure the performance stability of the material in a high temperature environment.

Barcol Hardness Test : Use a Barcol hardness tester to measure the surface hardness of the pipe and evaluate its wear resistance and surface strength.

Short-time failure pressure test : Conduct high-pressure short-time water pressure failure test to evaluate the pipeline’s ability to withstand extreme pressure conditions.

project outcome :

A detailed test report was provided, showing that all performance indicators of the composite pressure pipe met industry standards and customer requirements.
It helped customers confirm the reliability and durability of pipelines in high temperature, high pressure and corrosive environments, ensuring the safety and continuity of the production process.
It has enhanced customers' confidence in composite pressure pipes and provided important technical support for their future pipe selection and maintenance.

Through these successful cases, Raysa has demonstrated its professional capabilities and technical advantages in high-pressure fiberglass reinforced plastic casing and composite pressure pipeline inspection services. We will continue to uphold the customer-first philosophy, provide high-quality inspection services, and help customers achieve safe and efficient production operations.

Decision Guide

Turn Page Information into an Auditable Testing Decision

From first principles, independent testing exists to reduce the probability of a false acceptance, false rejection, or in-service failure—not to add another certificate to a file. A page, standard number, or service name is only a discovery point. The real question is which product must demonstrate which requirement, under which boundary conditions, with what evidence. Begin by defining product type, material system, dimensions and joint form, design pressure and temperature, process media, expected life, manufacturing batch, and intended decision. Then confirm the product specification, test-method editions, project data sheet, and purchaser additions named by the contract. Without those inputs, a laboratory can recommend a scope but cannot responsibly promise that a result will support release.

The inspection and test plan converts requirements into controlled work. It defines the lot and sampling population, specimen count, sampling position and orientation, machining and end treatment, conditioning, equipment range and calibration, environmental conditions, loading or measurement sequence, witness points, acceptance limits, treatment of measurement uncertainty, and retest rules. Material coupons can compare formulations and process stability, but they do not automatically represent a complete pipe body, joint, seal, laminate, or installed system. Where the product standard requires full-scale, assembly, long-term pressure, cyclic, immersion, or ageing tests, an easier coupon method is not an automatic substitute. Any equivalent method, specimen deviation, or acceptance exception should be approved before data are generated.

An auditable report connects the sample and batch identity, submitter, method and edition, equipment, environment, raw observations, calculations, photographs or curves, anomalies, deviations, and authorized decision. Near a limit, a predefined conformity rule must govern guard bands and decision risk; rounding, retesting, or selective exclusion cannot be changed after the result is known. Technical review also checks units, significant figures, specimen direction, statistics, and the source of every limit, while clearly separating the measured result from a conformity decision made against a stated criterion. That evidence chain is what allows a buyer, manufacturer, designer, certifier, or arbitrator to reproduce and rely on the conclusion.

Use this site by moving from industry pages that identify failure modes, to service and parameter pages that shape a test list, and then through the standards graph to verify product specifications and normative methods. These summaries help define scope and better questions; they do not replace an authorized copy of the standard, the project specification, or an approved inspection and test plan. Standard revisions, supplier or material changes, formulation and laminate changes, critical process drift, and production-site transfers can all trigger a gap assessment or requalification. Providing LEISA with drawings, data sheets, the standards list, sample details, service conditions, and the decision the evidence must support makes the resulting proposal clearer, faster, and traceable.