“Pacific Engineering Company” Ltd. has performed several large projects – both offshore ones on the shelf of Sakhalin Island and onshore surveys.

1. Offshore complex engineering surveys in the area of subsoil plot of federal significance including the field “Kaigansko-Vasyukanskoe-Sea”.
The surveys were executed for construction of the exploratory well from the semi-submersible drilling rig (SSDR), for designing of the production complex and pipeline route from the site to the shore. Client – «Elvari Neftegas» LLC.

The following works were performed from survey vessel “Diabaz”: bathymetric survey by a multibeam echo sounder, hydroacoustic survey by a side-scan sonar, high resolution seismic, ultra-high resolution seismic, high-frequency and low-frequency continuous sub-bottom profiling, magnetometer survey and sampling; hydrometeorological and ecological investigations were performed. The following works were performed from survey vessel “Trias”: geotechnical drilling, СРТ, vertical seismic profiling (VSP) in the boreholes, field laboratory complex of the soil testing onboard the vessel. The works under the project “Kaigansko-Vasyukanskoe-Sea” will be continued in 2020 in accordance with the contract.

2. Offshore engineering geological and geotechnical surveys for development of the project documentation for the facility: “Sakhalin-1 Project” Arkutun-Dagi field. Central and Southern areas of Dagi structure. Construction of the underwater production facilities”. Client – “Exxon Neftegas Limited”.

The surveys were performed for positioning of the SEFDR (self-elevating floating drilling rig) for development of the areas of Central and Southern Dagi. Complex offshore engineering surveys were carried out for subsequent construction of the underwater production facilities including the patter wells, templates and flowlines. Survey vessel “Trias” was used under the project, the following works were performed from the vessel: drilling of engineering-geological boreholes, CPT, vertical seismic profiling in the boreholes. Complex of laboratory soil testing was carried out in the process of drilling works. The works have been completed in full.

3. Complex offshore and onshore engineering surveys for development of the project documentation for the facility «Sakhalin – 1 Project». Development Stage 2. Far-Eastern Liquefied Natural Gas (LNG) Production Complex. Offshore facilities. Onshore facilities». De-Kastri, Khabarovsk Territory. Client – Branch of the corporation “FLUOR DANIEL EURASIA INC.” (FLUOR), Technical Client – SNGT.

Jack-up drilling rig “Krot” and onshore geotechnical party were involved in the engineering-geological surveys. A new small-size tracked drilling unit “Korvet 05” was purchased for realization of the project. Five survey facilities have been completed under the contract, works at one of the facilities will be continued in 2020.

All laboratory tests under the projects have been performed in the stationary geotechnical laboratory.  All works have been executed with strict observance of the safety requirements and environment protection.