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Dear All, We need to weld an L-80 Type-1 tubing to an AISI 4130 Hammer Union. This assembly will be used on a well testing package vent/flare line. We already have the WPS and supporting PQR for base metal AISI 4130 or its equivalent. Post-weld heat treatment (PWHT) will be carried out, and...

Hello All, Would you agree with the below: In an oil and gas plant, the decision to use an explosion-proof (Ex) rated dual-fuel burner (for gas and diesel) depends on the classification of the hazardous area where the burner will be located. The Ex rating is often required for equipment in...

Dear All, Is it correct to assume that a wet sour gas with 20% H₂S and 40% CO₂ could potentially fall under Category M (ASME B31.3) due to the high hydrogen sulfide (H₂S) content?

Hello everyone, What is the minimum crossing or parallel clearance between direct buried cables (33KV power cable) and an underground gas pipeline?

Dear All, Are threaded connections (for example, injection quills) allowed/acceptable for a highly sour gas service (20% H2S)? Thank you.

Dear All, According to Section 15.3 of API Standard 560, for forced-draft systems, the forced-draft fan can be used to purge the firebox in lieu of purge steam. Does the API text refer to diesel fuel or gaseous fuel?

Dear All, We have a 6-inch flow line, oil flow rate is 5,000 bopd and GOR 1500 SCF/BBL. The flowing wellhead pressure is 500 P.s.i.g. what is the H2S partial pressure if the H2S is 20%?

Dear All, We operate a 12-inch oil export pipeline with an operating pressure of 40 barg, and a 24-inch gas export pipeline with an operating pressure of 65 barg. Both pipelines are buried within the same corridor. We have been informed of plans to construct a gas/petrol station in close...

Dear Team, Please find the attached datasheet for a hot water circulation pump. We have experienced failures and loss of metal in the impeller, as well as in the first 5 inches of the discharge piping. The operating conditions are as follows: • Suction pressure: 1.2 barg • Discharge pressure...

Dear All, We have four hot water circulation pumps, the details of which are below for your reference. Hot water circulation pump specification: Data sheet: Suction pressure – 6 bar g; Discharge Pressure - 11.45 bar g; Flow rate – 200 m3/hr (30,191 bpd) and Temperature – 110 to 140⁰C...

Dear All, I found below in a test paper. but still searching for the API/ASTM crude reference which puts why API’s cannot be averages into understandable language??? Question 1 Equal volumes of a 30°API, 20°API, and 15°API crude are blended to produce a feed to refinery. Estimate the °API of...

Dear All, I found below in a test paper. but still searching for the API/ASTM crude reference which puts why API’s cannot be averages into understandable language. Question 1 Equal volumes of a 30°API, 20°API, and 15°API crude are blended to produce a feed to refinery. Estimate the °API of...

Dear Team, During inspection we observed that the weld-o-let fittings are not fitted or welded properly and have incomplete root penetration. Please note that this is a sour gas piping / on a reciprocating high-pressure gas compressor. These spools are part of the compressor package and were...