Pipeline Laying services DPR Permits are under the Oil and Gas Industry Service Permit (OGISP). This post covered Pipeline construction/ Laying DPR Permits services options, requirements, cost and processes. The Pipeline Laying services Permits are issued by Department of Petroleum Resources.
There two DPR permits types OGISP permits in Pipeline Laying Services.
- Offshore Pipeline Laying services permit and
- Onshore Pipeline Laying services permit.
We listed the Offshore Pipeline Laying services and Onshore Pipeline Laying services DPR Permit requirements, Services options you have, processing steps and cost/fee.
Pipeline Laying Services DPR Permits are permit(s) you need to carry out any Pipeline Laying Services operate in Nigerian Downstream and Upstream Oil & Gas industry. This post is concentrated on Pipeline Laying Services (Offshore and onshore) in Oil and Gas Industry Service Permit Portal (OGISP) that is in Specialized category.
DPR permit usage cannot be over emphasized. The bottom line is any service(s)/ product(s) or business you want to carry out in Nigerian Oil & Gas industry, you must obtain and have adequate DPR permit covering the service or product.
What is Pipeline Construction/ Pipeline Laying services?
The rush to move crude and natural gas from one well to another and to plants/ terminals and markets places has made pipelines Construction/ Pipeline Laying a big activity in Oil & Gas industry.
Pipeline construction/ Laying services are fleet of operations involving the construction, oil and gas industries. It involves civil works, excavation, fabrication and installation of pipelines, pre-commissioning and commissioning pipeline projects.
Onshore methods Pipeline Construction/ Laying Methods:
Suitable for all pipe diameters, open-trench pipe-laying is the most common method.
To start with, a trench is excavated along the planned pipeline route. If the in-situ soil does not offer a suitable pipe bed, the trench is deepened and bedded. The pipes can then be lowered into the trench as a welded pipe string.
Plowing is a particularly eco-friendly technique, which can be used for pipes up to DN 600, depending on the type of soil, pipe string length and pulling force involved.
By means of a steel rope winch, a special tractor pulls the pipe-laying plow through the soil. The share, which is adjusted to the pipe-laying level plows a furrow into the soil through which the pipe string is pulled in. The displaced soil immediately deposits itself on the pipe string. This makes the process particularly fast, while reducing the impact on the land to an absolute minimum.
Horizontal Flush Drilling
The horizontal flush drilling technique is used in trenchless pipeline construction and is particularly suitable for pipe-laying in densely built-up urban areas or for crossings underneath water or buildings. The pilot hole is drilled along a two- or three-dimensionally curved line between the entry point (in front of the drill) and an exit point (on the opposite side of the obstacle to be crossed under). The in-situ soil is loosened by a drill head at the front end of the drill string. In the second step in controlled horizontal drilling, the pilot hole is widened. Finally, the pipe string is pulled in from the exit point into the widened borehole.
Offshore Methods Pipeline Construction/ Laying Methods:
Offshore pipeline construction/ laying methods are difference from onshore. Offshore pipeline construction, we mean pipe-laying on the sea and deep water.
Three methods have established themselves: S-Lay, J-Lay and R-Lay.
J-lay Process Pipe-Laying Method
The J-lay process is particularly well-suited for pipe-laying in very deep water.
The process uses a pipe-laying vessel with a tower in which the individual pipes are welded to a string, followed by testing and field coating. In a close to vertical position, the finished string is then lowered into the water, while the vessel moves ahead at a slow speed. The characteristic J-shape is created as the pipe string is laid, following a 90 degree curve from a vertical position to the horizontal end position on the sea bed.
S-lay Process Pipe-Laying Method
The S-lay process is used for pipe-laying at low to medium water depths.
The pipes are welded together on a pipe-laying vessel, followed by final inspection in the form of X-ray testing, and field coating of the joint areas. The pipe string is then pushed off the stern of the vessel and lowered into the water via a stinger. The S-shape eponymous for the process forms as more pipe is welded to the string and eased off the vessel. Between the horizontal welding line onboard the vessel and the seafloor, the pipe segment floating in the water follows a curve that is comparable to a mathematical sigmoid function
R-lay Process Pipe-Laying Method
In the R-lay or reel lay process, the pipeline is not welded aboard the vessel but on land, and then wound onto a reel on the vessel. The decisive advantage of this method is that the pipes are joined onshore and thus independently of marine environmental influences, and pipeline production and pipe-laying can be carried out separately. This means when the vessel has laid one pipeline string it can be supplied with a new pipe reel while still offshore. Compared to the J-lay and S-lay processes, the actual time window for pipe-laying can be significantly reduced for added cost economies. However, this advantage comes at the price of high mechanical loads on the pipes generated as the string is spooled on and off the reel. Due to the high requirements involved, this pipe-laying process is currently only used for small to medium pipe diameters.
Pipeline Construction/ Laying works:
There are two Pipeline works, namely, mechanical and civil works.
Pipeline mechanical works (pipe stringing, bending, welding, sandblasting and wrapping, pipeline laying, hydraulic tests, connection of pipeline sections, cathodic protection of pipes, etc.);
Pipeline civil works (land surveying using GPS equipment, route staking, route clearance, backfill, definitive reinstatement work, excavation, open-cut/drilled system water crossings, complementary works, etc.);
General civil and mechanical works (excavation and earth moving work, concrete pouring, backfill, pre- prefabrication & installation of PRMS stations plus other related piping spools, mechanical assembly, painting and wrapping, sandblasting, de-watering and hydro tests, complementary works, etc.).
Offshore Pipeline Construction/ Laying DPR Permit Services Options
There 3 sections in Offshore Pipeline Construction/ Laying permit.
Pipeline Laying & Construction
- Laying of oil and gas pipeline
- Pipeline Fabrication/Construction
- Pipeline Pigging and Inspection
- Non-Destructive Testing (Normal or using Radioactive sources)
- Corrosion Prevention Control Services (Cathodic protection, coating etc)
- Hydro Test
- Pipe Milling/Threading
- Pipeline Procurement
This means when applying OFFSHORE PIPELINE LAYING as a company, you are to choose item 1 and 2 or you choose two services among item 3 and 6 or you choose item 7 and 8.
e.g Where you want to choose Laying of oil and gas pipeline and Pipeline Procurement, you must pay for two Pipeline Construction/ Pipeline Laying DPR Permit.
Pipeline Construction/ Laying Services Permit Requirements
- CAC DOCUMENTS
2. CURRENT TAX CLEARANCE CERTIFICATE
3. NIGERIA SOCIAL INSURANCE TRUST FUND (NSITF)
4. COMPANY PROFILE
5. LIST OF EQUIPMENT/FACILITY AVAILABLE TO THE COMPANY
6. MEDICAL RETAINERSHIP AGREEMENT WITH A HOSPITAL
7. TRAINING PROGRAM/ MISION/ VISION
8. HSE MANAGEMENT SYSTEM
For Offshore Pipeline Laying, you will need extra compliance call Offshore Safety Permit.
Pipeline Laying/ Construction DPR Permit Cost/ fee
Major Construction Services DPR Permit is under specialized category and such, the official fee is N250,000 plus government service charge of N7,500.
- Your are to create company account on Oil and Gas Industry Service Permit Portal (OGISP) DPR portal.
- Go to application >> Select new application drop down >> select Specialized >> chose Major Construction Services
- Make payment. You have payment method options like: Card, online banking, bank branch.
- Complete details and submit application
- DPR team will verify your application
- Your company will be notify for Inspection by DPR team
- Permit will be issued if the company’s Inspection goes well.