Abstract

Oily solids are generated as a vast. product of Brunei Shell Petroleum's product of Brunei Shell Petroleum's drilling and production activities. The main sources are vast. oil based mud, tank bottom sludges, and oil contaminated soil. The oily solids are stored in a purpose built holding basin which is gradually being filled up. The need for appropriate treatment and an acceptable means of final disposal of the solids has been recognised as an item for attention in the Company's Environmental Management Plan. The paper describes the resulting paper describes the resulting feasibility study which is evaluating the relative merits of processes such as incineration, lime stabilization, and landfarming. The feasibility study is considering the quantity and properties of the solids, the environmental conditions in Brunei, the availability of treatment services in the country, and the need to define acceptable environmental criteria for the treatment and disposal methods. The way in which these factors influence the study are discussed.

Introduction

Brunei Darussalam is situated on the North West of Borneo. The basis of its economy is oil and gas, and Brunei Shell Petroleum (BSP) is currently the sole producer. Oil production began in 1929 in a coastal peat swamp area. Development of the peat swamp area. Development of the field entailed clearing the vegetation, sand-filling the area, and building not only the production facilities but also the infrastructure necessary to support a population of several thousand people. In later years there have been people. In later years there have been significant oil and gas discoveries offshore such that the major producing fields are offshore. All oil and water is handled at a single coastal terminal (Seria Terminal) and gas is routed to the Brunei Liquified natural Gas (BLNG) plant. Almost all the crude oil and gas plant. Almost all the crude oil and gas is exported. A small proportion is retained for domestic consumption and for this purpose there is a small refinery located next to the Seria terminal.

Oily solids are generated from a number of sources in the exploration and production process. Solids are produced production process. Solids are produced with the oil and water and these settle out at sumps, oil catchers and in the crude oil storage tanks. Another source of oily solids is the flocculant recovered from the water treatment process. oily solids are also produced process. oily solids are also produced in the reconditioning of oil based mud (OBM) for drilling purposes. oil contaminated soil is a further source of oily solids. At present all these materials are disposed into a purpose built holding basin which is being gradually filled up. This is known as the Sungai Bera Holding Basin.

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